configure: check for nanosecond precission stat
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-error-resilience disable error resilience code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --disable-dxva2          disable DXVA2 code [autodetect]
145   --disable-vaapi          disable VAAPI code [autodetect]
146   --enable-vda             enable VDA code
147   --disable-vdpau          disable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --disable-bzlib          disable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --disable-iconv          disable iconv [autodetect]
193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
194   --enable-libass          enable libass subtitles rendering [no]
195   --enable-libbluray       enable BluRay reading using libbluray [no]
196   --enable-libcaca         enable textual display using libcaca
197   --enable-libcelt         enable CELT decoding via libcelt [no]
198   --enable-libcdio         enable audio CD grabbing with libcdio
199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
200                            and libraw1394 [no]
201   --enable-libfaac         enable AAC encoding via libfaac [no]
202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
204   --enable-libfreetype     enable libfreetype [no]
205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
208   --enable-libmodplug      enable ModPlug via libmodplug [no]
209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
210   --enable-libnut          enable NUT (de)muxing via libnut,
211                            native (de)muxer exists [no]
212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
214   --enable-libopencv       enable video filtering via libopencv [no]
215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
216   --enable-libopus         enable Opus decoding via libopus [no]
217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
218   --enable-libquvi         enable quvi input via libquvi [no]
219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
222   --enable-libsoxr         enable Include libsoxr resampling [no]
223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
225   --enable-libtheora       enable Theora encoding via libtheora [no]
226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
229   --enable-libvidstab      enable video stabilization using vid.stab [no]
230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
233                            native implementation exists [no]
234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
235   --enable-libx264         enable H.264 encoding via x264 [no]
236   --enable-libxavs         enable AVS encoding via xavs [no]
237   --enable-libxvid         enable Xvid encoding via xvidcore,
238                            native MPEG-4/Xvid encoder exists [no]
239   --enable-libzmq          enable message passing via libzmq [no]
240   --enable-openal          enable OpenAL 1.1 capture support [no]
241   --enable-opencl          enable OpenCL code
242   --enable-openssl         enable openssl [no]
243   --enable-x11grab         enable X11 grabbing [no]
244   --disable-zlib           disable zlib [autodetect]
245
246 Advanced options (experts only):
247   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
248   --enable-cross-compile   assume a cross-compiler is used
249   --sysroot=PATH           root of cross-build tree
250   --sysinclude=PATH        location of cross-build system headers
251   --target-os=OS           compiler targets OS [$target_os]
252   --target-exec=CMD        command to run executables on target
253   --target-path=DIR        path to view of build directory on target
254   --target-samples=DIR     path to samples directory on target
255   --toolchain=NAME         set tool defaults according to NAME
256   --nm=NM                  use nm tool NM [$nm_default]
257   --ar=AR                  use archive tool AR [$ar_default]
258   --as=AS                  use assembler AS [$as_default]
259   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
260   --cc=CC                  use C compiler CC [$cc_default]
261   --cxx=CXX                use C compiler CXX [$cxx_default]
262   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
263   --ld=LD                  use linker LD [$ld_default]
264   --host-cc=HOSTCC         use host C compiler HOSTCC
265   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
266   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
267   --host-ld=HOSTLD         use host linker HOSTLD
268   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
269   --host-libs=HLIBS        use libs HLIBS when linking for host
270   --host-os=OS             compiler host OS [$target_os]
271   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
272   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
273   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
274   --extra-libs=ELIBS       add ELIBS [$ELIBS]
275   --extra-version=STRING   version string suffix []
276   --optflags=OPTFLAGS      override optimization-related compiler flags
277   --build-suffix=SUFFIX    library name suffix []
278   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
279   --progs-suffix=SUFFIX    program name suffix []
280   --arch=ARCH              select architecture [$arch]
281   --cpu=CPU                select the minimum required CPU (affects
282                            instruction selection, may crash on older CPUs)
283   --enable-pic             build position-independent code
284   --enable-sram            allow use of on-chip SRAM
285   --enable-thumb           compile for Thumb instruction set
286   --disable-symver         disable symbol versioning
287   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
288   --disable-safe-bitstream-reader
289                            disable buffer boundary checking in bitreaders
290                            (faster, but may crash)
291   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
292   --enable-lto             use link-time optimization
293
294 Optimization options (experts only):
295   --disable-asm            disable all assembler optimizations
296   --disable-altivec        disable AltiVec optimizations
297   --disable-amd3dnow       disable 3DNow! optimizations
298   --disable-amd3dnowext    disable 3DNow! extended optimizations
299   --disable-mmx            disable MMX optimizations
300   --disable-mmxext         disable MMXEXT optimizations
301   --disable-sse            disable SSE optimizations
302   --disable-sse2           disable SSE2 optimizations
303   --disable-sse3           disable SSE3 optimizations
304   --disable-ssse3          disable SSSE3 optimizations
305   --disable-sse4           disable SSE4 optimizations
306   --disable-sse42          disable SSE4.2 optimizations
307   --disable-avx            disable AVX optimizations
308   --disable-fma4           disable FMA4 optimizations
309   --disable-armv5te        disable armv5te optimizations
310   --disable-armv6          disable armv6 optimizations
311   --disable-armv6t2        disable armv6t2 optimizations
312   --disable-vfp            disable VFP optimizations
313   --disable-neon           disable NEON optimizations
314   --disable-vis            disable VIS optimizations
315   --disable-inline-asm     disable use of inline assembler
316   --disable-yasm           disable use of yasm assembler
317   --disable-mips32r2       disable MIPS32R2 optimizations
318   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
319   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
320   --disable-mipsfpu        disable floating point MIPS optimizations
321   --disable-fast-unaligned consider unaligned accesses slow
322
323 Developer options (useful when working on FFmpeg itself):
324   --disable-debug          disable debugging symbols
325   --enable-debug=LEVEL     set the debug level [$debuglevel]
326   --disable-optimizations  disable compiler optimizations
327   --enable-extra-warnings  enable more compiler warnings
328   --disable-stripping      disable stripping of executables and shared libraries
329   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
330                            2 causes a slowdown at runtime.
331   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
332   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
333                            leaks and errors, using the specified valgrind binary.
334                            Cannot be combined with --target-exec
335   --enable-ftrapv          Trap arithmetic overflows
336   --samples=PATH           location of test samples for FATE, if not set use
337                            \$FATE_SAMPLES at make invocation time.
338   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
339                            should be used only for debugging purposes)
340   --enable-random          randomly enable/disable components
341   --disable-random
342   --enable-random=LIST     randomly enable/disable specific components or
343   --disable-random=LIST    component groups. LIST is a comma-separated list
344                            of NAME[:PROB] entries where NAME is a component
345                            (group) and PROB the probability associated with
346                            NAME (default 0.5).
347   --random-seed=VALUE      seed value for --enable/disable-random
348
349 NOTE: Object files are built at the place where configure is launched.
350 EOF
351   exit 0
352 }
353
354 quotes='""'
355
356 log(){
357     echo "$@" >> $logfile
358 }
359
360 log_file(){
361     log BEGIN $1
362     pr -n -t $1 >> $logfile
363     log END $1
364 }
365
366 echolog(){
367     log "$@"
368     echo "$@"
369 }
370
371 warn(){
372     log "WARNING: $*"
373     WARNINGS="${WARNINGS}WARNING: $*\n"
374 }
375
376 die(){
377     echolog "$@"
378     cat <<EOF
379
380 If you think configure made a mistake, make sure you are using the latest
381 version from Git.  If the latest version fails, report the problem to the
382 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
383 EOF
384     if disabled logging; then
385         cat <<EOF
386 Rerun configure with logging enabled (do not use --disable-logging), and
387 include the log this produces with your report.
388 EOF
389     else
390         cat <<EOF
391 Include the log file "$logfile" produced by configure as this will help
392 solving the problem.
393 EOF
394     fi
395     exit 1
396 }
397
398 # Avoid locale weirdness, besides we really just want to translate ASCII.
399 toupper(){
400     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
401 }
402
403 tolower(){
404     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
405 }
406
407 c_escape(){
408     echo "$*" | sed 's/["\\]/\\\0/g'
409 }
410
411 sh_quote(){
412     v=$(echo "$1" | sed "s/'/'\\\\''/g")
413     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
414     echo "$v"
415 }
416
417 cleanws(){
418     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
419 }
420
421 filter(){
422     pat=$1
423     shift
424     for v; do
425         eval "case $v in $pat) echo $v ;; esac"
426     done
427 }
428
429 filter_out(){
430     pat=$1
431     shift
432     for v; do
433         eval "case $v in $pat) ;; *) echo $v ;; esac"
434     done
435 }
436
437 map(){
438     m=$1
439     shift
440     for v; do eval $m; done
441 }
442
443 add_suffix(){
444     suffix=$1
445     shift
446     for v; do echo ${v}${suffix}; done
447 }
448
449 set_all(){
450     value=$1
451     shift
452     for var in $*; do
453         eval $var=$value
454     done
455 }
456
457 set_weak(){
458     value=$1
459     shift
460     for var; do
461         eval : \${$var:=$value}
462     done
463 }
464
465 sanitize_var_name(){
466     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
467 }
468
469 set_safe(){
470     var=$1
471     shift
472     eval $(sanitize_var_name "$var")='$*'
473 }
474
475 get_safe(){
476     eval echo \$$(sanitize_var_name "$1")
477 }
478
479 pushvar(){
480     for pvar in $*; do
481         eval level=\${${pvar}_level:=0}
482         eval ${pvar}_${level}="\$$pvar"
483         eval ${pvar}_level=$(($level+1))
484     done
485 }
486
487 popvar(){
488     for pvar in $*; do
489         eval level=\${${pvar}_level:-0}
490         test $level = 0 && continue
491         eval level=$(($level-1))
492         eval $pvar="\${${pvar}_${level}}"
493         eval ${pvar}_level=$level
494         eval unset ${pvar}_${level}
495     done
496 }
497
498 enable(){
499     set_all yes $*
500 }
501
502 disable(){
503     set_all no $*
504 }
505
506 enable_weak(){
507     set_weak yes $*
508 }
509
510 disable_weak(){
511     set_weak no $*
512 }
513
514 enable_safe(){
515     for var; do
516         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
517     done
518 }
519
520 disable_safe(){
521     for var; do
522         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
523     done
524 }
525
526 do_enable_deep(){
527     for var; do
528         enabled $var && continue
529         eval sel="\$${var}_select"
530         eval sgs="\$${var}_suggest"
531         pushvar var sgs
532         enable_deep $sel
533         popvar sgs
534         enable_deep_weak $sgs
535         popvar var
536     done
537 }
538
539 enable_deep(){
540     do_enable_deep $*
541     enable $*
542 }
543
544 enable_deep_weak(){
545     for var; do
546         disabled $var && continue
547         pushvar var
548         do_enable_deep $var
549         popvar var
550         enable_weak $var
551     done
552 }
553
554 enabled(){
555     test "${1#!}" = "$1" && op== || op=!=
556     eval test "x\$${1#!}" $op "xyes"
557 }
558
559 disabled(){
560     test "${1#!}" = "$1" && op== || op=!=
561     eval test "x\$${1#!}" $op "xno"
562 }
563
564 enabled_all(){
565     for opt; do
566         enabled $opt || return 1
567     done
568 }
569
570 disabled_all(){
571     for opt; do
572         disabled $opt || return 1
573     done
574 }
575
576 enabled_any(){
577     for opt; do
578         enabled $opt && return 0
579     done
580 }
581
582 disabled_any(){
583     for opt; do
584         disabled $opt && return 0
585     done
586     return 1
587 }
588
589 set_default(){
590     for opt; do
591         eval : \${$opt:=\$${opt}_default}
592     done
593 }
594
595 is_in(){
596     value=$1
597     shift
598     for var in $*; do
599         [ $var = $value ] && return 0
600     done
601     return 1
602 }
603
604 do_check_deps(){
605     for cfg; do
606         cfg="${cfg#!}"
607         enabled ${cfg}_checking && die "Circular dependency for $cfg."
608         disabled ${cfg}_checking && continue
609         enable ${cfg}_checking
610         append allopts $cfg
611
612         eval dep_all="\$${cfg}_deps"
613         eval dep_any="\$${cfg}_deps_any"
614         eval dep_sel="\$${cfg}_select"
615         eval dep_sgs="\$${cfg}_suggest"
616         eval dep_ifa="\$${cfg}_if"
617         eval dep_ifn="\$${cfg}_if_any"
618
619         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
620         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
621         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
622
623         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
624         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
625         enabled_all  $dep_all || disable $cfg
626         enabled_any  $dep_any || disable $cfg
627         disabled_any $dep_sel && disable $cfg
628
629         if enabled $cfg; then
630             enable_deep $dep_sel
631             enable_deep_weak $dep_sgs
632         fi
633
634         disable ${cfg}_checking
635     done
636 }
637
638 check_deps(){
639     unset allopts
640
641     do_check_deps "$@"
642
643     for cfg in $allopts; do
644         enabled $cfg || continue
645         eval dep_extralibs="\$${cfg}_extralibs"
646         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
647     done
648 }
649
650 print_config(){
651     pfx=$1
652     files=$2
653     shift 2
654     map 'eval echo "$v \${$v:-no}"' "$@" |
655     awk "BEGIN { split(\"$files\", files) }
656         {
657             c = \"$pfx\" toupper(\$1);
658             v = \$2;
659             sub(/yes/, 1, v);
660             sub(/no/,  0, v);
661             for (f in files) {
662                 file = files[f];
663                 if (file ~ /\\.h\$/) {
664                     printf(\"#define %s %d\\n\", c, v) >>file;
665                 } else if (file ~ /\\.asm\$/) {
666                     printf(\"%%define %s %d\\n\", c, v) >>file;
667                 } else if (file ~ /\\.mak\$/) {
668                     n = -v ? \"\" : \"!\";
669                     printf(\"%s%s=yes\\n\", n, c) >>file;
670                 } else if (file ~ /\\.texi\$/) {
671                     pre = -v ? \"\" : \"@c \";
672                     yesno = \$2;
673                     c2 = tolower(c);
674                     gsub(/_/, \"-\", c2);
675                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
676                 }
677             }
678         }"
679 }
680
681 print_enabled(){
682     suf=$1
683     shift
684     for v; do
685         enabled $v && printf "%s\n" ${v%$suf};
686     done
687 }
688
689 append(){
690     var=$1
691     shift
692     eval "$var=\"\$$var $*\""
693 }
694
695 prepend(){
696     var=$1
697     shift
698     eval "$var=\"$* \$$var\""
699 }
700
701 add_cppflags(){
702     append CPPFLAGS "$@"
703 }
704
705 add_cflags(){
706     append CFLAGS $($cflags_filter "$@")
707 }
708
709 add_cxxflags(){
710     append CXXFLAGS $($cflags_filter "$@")
711 }
712
713 add_asflags(){
714     append ASFLAGS $($asflags_filter "$@")
715 }
716
717 add_ldflags(){
718     append LDFLAGS $($ldflags_filter "$@")
719 }
720
721 add_extralibs(){
722     prepend extralibs $($ldflags_filter "$@")
723 }
724
725 add_host_cppflags(){
726     append host_cppflags "$@"
727 }
728
729 add_host_cflags(){
730     append host_cflags $($host_cflags_filter "$@")
731 }
732
733 add_host_ldflags(){
734     append host_ldflags $($host_ldflags_filter "$@")
735 }
736
737 add_compat(){
738     append compat_objs $1
739     shift
740     map 'add_cppflags -D$v' "$@"
741 }
742
743 check_cmd(){
744     log "$@"
745     "$@" >> $logfile 2>&1
746 }
747
748 cc_o(){
749     eval printf '%s\\n' $CC_O
750 }
751
752 cc_e(){
753     eval printf '%s\\n' $CC_E
754 }
755
756 check_cc(){
757     log check_cc "$@"
758     cat > $TMPC
759     log_file $TMPC
760     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
761 }
762
763 check_cxx(){
764     log check_cxx "$@"
765     cat > $TMPCPP
766     log_file $TMPCPP
767     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
768 }
769
770 check_cpp(){
771     log check_cpp "$@"
772     cat > $TMPC
773     log_file $TMPC
774     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
775 }
776
777 as_o(){
778     eval printf '%s\\n' $AS_O
779 }
780
781 check_as(){
782     log check_as "$@"
783     cat > $TMPS
784     log_file $TMPS
785     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
786 }
787
788 check_inline_asm(){
789     log check_inline_asm "$@"
790     name="$1"
791     code="$2"
792     shift 2
793     disable $name
794     check_cc "$@" <<EOF && enable $name
795 void foo(void){ __asm__ volatile($code); }
796 EOF
797 }
798
799 check_insn(){
800     log check_insn "$@"
801     check_inline_asm ${1}_inline "\"$2\""
802     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
803 }
804
805 check_yasm(){
806     log check_yasm "$@"
807     echo "$1" > $TMPS
808     log_file $TMPS
809     shift 1
810     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
811 }
812
813 ld_o(){
814     eval printf '%s\\n' $LD_O
815 }
816
817 check_ld(){
818     log check_ld "$@"
819     type=$1
820     shift 1
821     flags=$(filter_out '-l*|*.so' $@)
822     libs=$(filter '-l*|*.so' $@)
823     check_$type $($cflags_filter $flags) || return
824     flags=$($ldflags_filter $flags)
825     libs=$($ldflags_filter $libs)
826     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
827 }
828
829 check_code(){
830     log check_code "$@"
831     check=$1
832     headers=$2
833     code=$3
834     shift 3
835     {
836         for hdr in $headers; do
837             echo "#include <$hdr>"
838         done
839         echo "int main(void) { $code; return 0; }"
840     } | check_$check "$@"
841 }
842
843 check_cppflags(){
844     log check_cppflags "$@"
845     check_cc "$@" <<EOF && append CPPFLAGS "$@"
846 int x;
847 EOF
848 }
849
850 check_cflags(){
851     log check_cflags "$@"
852     set -- $($cflags_filter "$@")
853     check_cc "$@" <<EOF && append CFLAGS "$@"
854 int x;
855 EOF
856 }
857
858 check_cxxflags(){
859     log check_cxxflags "$@"
860     set -- $($cflags_filter "$@")
861     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
862 int x;
863 EOF
864 }
865
866 test_ldflags(){
867     log test_ldflags "$@"
868     check_ld "cc" "$@" <<EOF
869 int main(void){ return 0; }
870 EOF
871 }
872
873 check_ldflags(){
874     log check_ldflags "$@"
875     test_ldflags "$@" && add_ldflags "$@"
876 }
877
878 check_header(){
879     log check_header "$@"
880     header=$1
881     shift
882     disable_safe $header
883     check_cpp "$@" <<EOF && enable_safe $header
884 #include <$header>
885 int x;
886 EOF
887 }
888
889 check_func(){
890     log check_func "$@"
891     func=$1
892     shift
893     disable $func
894     check_ld "cc" "$@" <<EOF && enable $func
895 extern int $func();
896 int main(void){ $func(); }
897 EOF
898 }
899
900 check_mathfunc(){
901     log check_mathfunc "$@"
902     func=$1
903     narg=$2
904     shift 2
905     test $narg = 2 && args="f, g" || args="f"
906     disable $func
907     check_ld "cc" "$@" <<EOF && enable $func
908 #include <math.h>
909 float foo(float f, float g) { return $func($args); }
910 int main(void){ return (int) foo; }
911 EOF
912 }
913
914 check_func_headers(){
915     log check_func_headers "$@"
916     headers=$1
917     funcs=$2
918     shift 2
919     {
920         for hdr in $headers; do
921             echo "#include <$hdr>"
922         done
923         for func in $funcs; do
924             echo "long check_$func(void) { return (long) $func; }"
925         done
926         echo "int main(void) { return 0; }"
927     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
928 }
929
930 check_class_headers_cpp(){
931     log check_class_headers_cpp "$@"
932     headers=$1
933     classes=$2
934     shift 2
935     {
936         for hdr in $headers; do
937             echo "#include <$hdr>"
938         done
939         echo "int main(void) { "
940         i=1
941         for class in $classes; do
942             echo "$class obj$i;"
943             i=$(expr $i + 1)
944         done
945         echo "return 0; }"
946     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
947 }
948
949 check_cpp_condition(){
950     log check_cpp_condition "$@"
951     header=$1
952     condition=$2
953     shift 2
954     check_cpp "$@" <<EOF
955 #include <$header>
956 #if !($condition)
957 #error "unsatisfied condition: $condition"
958 #endif
959 EOF
960 }
961
962 check_lib(){
963     log check_lib "$@"
964     header="$1"
965     func="$2"
966     shift 2
967     check_header $header && check_func $func "$@" && add_extralibs "$@"
968 }
969
970 check_lib2(){
971     log check_lib2 "$@"
972     headers="$1"
973     funcs="$2"
974     shift 2
975     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
976 }
977
978 check_lib_cpp(){
979     log check_lib_cpp "$@"
980     headers="$1"
981     classes="$2"
982     shift 2
983     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
984 }
985
986 check_pkg_config(){
987     log check_pkg_config "$@"
988     pkg="$1"
989     headers="$2"
990     funcs="$3"
991     shift 3
992     $pkg_config --exists $pkg 2>/dev/null || return
993     pkg_cflags=$($pkg_config --cflags $pkg)
994     pkg_libs=$($pkg_config --libs $pkg)
995     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
996         set_safe ${pkg}_cflags $pkg_cflags   &&
997         set_safe ${pkg}_libs   $pkg_libs
998 }
999
1000 check_exec(){
1001     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1002 }
1003
1004 check_exec_crash(){
1005     code=$(cat)
1006
1007     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1008     # are safe but may not be available everywhere.  Thus we use
1009     # raise(SIGTERM) instead.  The check is run in a subshell so we
1010     # can redirect the "Terminated" message from the shell.  SIGBUS
1011     # is not defined by standard C so it is used conditionally.
1012
1013     (check_exec "$@") >> $logfile 2>&1 <<EOF
1014 #include <signal.h>
1015 static void sighandler(int sig){
1016     raise(SIGTERM);
1017 }
1018 int foo(void){
1019     $code
1020 }
1021 int (*func_ptr)(void) = foo;
1022 int main(void){
1023     signal(SIGILL, sighandler);
1024     signal(SIGFPE, sighandler);
1025     signal(SIGSEGV, sighandler);
1026 #ifdef SIGBUS
1027     signal(SIGBUS, sighandler);
1028 #endif
1029     return func_ptr();
1030 }
1031 EOF
1032 }
1033
1034 check_type(){
1035     log check_type "$@"
1036     headers=$1
1037     type=$2
1038     shift 2
1039     disable_safe "$type"
1040     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1041 }
1042
1043 check_struct(){
1044     log check_struct "$@"
1045     headers=$1
1046     struct=$2
1047     member=$3
1048     shift 3
1049     disable_safe "${struct}_${member}"
1050     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1051         enable_safe "${struct}_${member}"
1052 }
1053
1054 check_builtin(){
1055     log check_builtin "$@"
1056     name=$1
1057     headers=$2
1058     builtin=$3
1059     shift 3
1060     disable "$name"
1061     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1062 }
1063
1064 require(){
1065     name="$1"
1066     header="$2"
1067     func="$3"
1068     shift 3
1069     check_lib $header $func "$@" || die "ERROR: $name not found"
1070 }
1071
1072 require2(){
1073     name="$1"
1074     headers="$2"
1075     func="$3"
1076     shift 3
1077     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1078 }
1079
1080 require_cpp(){
1081     name="$1"
1082     headers="$2"
1083     classes="$3"
1084     shift 3
1085     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1086 }
1087
1088 require_pkg_config(){
1089     pkg="$1"
1090     check_pkg_config "$@" || die "ERROR: $pkg not found"
1091     add_cflags    $(get_safe ${pkg}_cflags)
1092     add_extralibs $(get_safe ${pkg}_libs)
1093 }
1094
1095 hostcc_o(){
1096     eval printf '%s\\n' $HOSTCC_O
1097 }
1098
1099 check_host_cc(){
1100     log check_host_cc "$@"
1101     cat > $TMPC
1102     log_file $TMPC
1103     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1104 }
1105
1106 check_host_cppflags(){
1107     log check_host_cppflags "$@"
1108     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1109 int x;
1110 EOF
1111 }
1112
1113 check_host_cflags(){
1114     log check_host_cflags "$@"
1115     set -- $($host_cflags_filter "$@")
1116     check_host_cc "$@" <<EOF && append host_cflags "$@"
1117 int x;
1118 EOF
1119 }
1120
1121 apply(){
1122     file=$1
1123     shift
1124     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1125 }
1126
1127 cp_if_changed(){
1128     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1129     mkdir -p "$(dirname $2)"
1130     $cp_f "$1" "$2"
1131 }
1132
1133 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1134 # system-dependent things.
1135
1136 COMPONENT_LIST="
1137     bsfs
1138     decoders
1139     demuxers
1140     encoders
1141     filters
1142     hwaccels
1143     indevs
1144     muxers
1145     outdevs
1146     parsers
1147     protocols
1148 "
1149
1150 EXTERNAL_LIBRARY_LIST="
1151     avisynth
1152     bzlib
1153     crystalhd
1154     fontconfig
1155     frei0r
1156     gnutls
1157     iconv
1158     libaacplus
1159     libass
1160     libbluray
1161     libcaca
1162     libcdio
1163     libcelt
1164     libdc1394
1165     libfaac
1166     libfdk_aac
1167     libflite
1168     libfreetype
1169     libgsm
1170     libiec61883
1171     libilbc
1172     libmodplug
1173     libmp3lame
1174     libnut
1175     libopencore_amrnb
1176     libopencore_amrwb
1177     libopencv
1178     libopenjpeg
1179     libopus
1180     libpulse
1181     libquvi
1182     librtmp
1183     libschroedinger
1184     libshine
1185     libsoxr
1186     libspeex
1187     libstagefright_h264
1188     libtheora
1189     libtwolame
1190     libutvideo
1191     libv4l2
1192     libvidstab
1193     libvo_aacenc
1194     libvo_amrwbenc
1195     libvorbis
1196     libvpx
1197     libx264
1198     libxavs
1199     libxvid
1200     libzmq
1201     openal
1202     opencl
1203     openssl
1204     x11grab
1205     zlib
1206 "
1207
1208 DOCUMENT_LIST="
1209     doc
1210     htmlpages
1211     manpages
1212     podpages
1213     txtpages
1214 "
1215
1216 HWACCEL_LIST="
1217     dxva2
1218     vaapi
1219     vda
1220     vdpau
1221 "
1222
1223 LIBRARY_LIST="
1224     avcodec
1225     avdevice
1226     avfilter
1227     avformat
1228     avresample
1229     avutil
1230     postproc
1231     swresample
1232     swscale
1233 "
1234
1235 PROGRAM_LIST="
1236     ffplay
1237     ffprobe
1238     ffserver
1239     ffmpeg
1240 "
1241
1242 CONFIG_LIST="
1243     $COMPONENT_LIST
1244     $DOCUMENT_LIST
1245     $EXTERNAL_LIBRARY_LIST
1246     $HWACCEL_LIST
1247     $LIBRARY_LIST
1248     $PROGRAM_LIST
1249     dct
1250     dwt
1251     error_resilience
1252     fast_unaligned
1253     fft
1254     ftrapv
1255     gpl
1256     gray
1257     hardcoded_tables
1258     incompatible_fork_abi
1259     lsp
1260     lzo
1261     mdct
1262     memalign_hack
1263     memory_poisoning
1264     network
1265     nonfree
1266     pic
1267     rdft
1268     runtime_cpudetect
1269     safe_bitstream_reader
1270     shared
1271     small
1272     sram
1273     static
1274     swscale_alpha
1275     thumb
1276     version3
1277     xmm_clobber_test
1278 "
1279
1280 THREADS_LIST='
1281     pthreads
1282     w32threads
1283     os2threads
1284 '
1285
1286 ATOMICS_LIST='
1287     atomics_gcc
1288     atomics_suncc
1289     atomics_win32
1290 '
1291
1292 ARCH_LIST='
1293     aarch64
1294     alpha
1295     arm
1296     avr32
1297     avr32_ap
1298     avr32_uc
1299     bfin
1300     ia64
1301     m68k
1302     mips
1303     mips64
1304     parisc
1305     ppc
1306     ppc64
1307     s390
1308     sh4
1309     sparc
1310     sparc64
1311     tilegx
1312     tilepro
1313     tomi
1314     x86
1315     x86_32
1316     x86_64
1317 '
1318
1319 ARCH_EXT_LIST_ARM='
1320     armv5te
1321     armv6
1322     armv6t2
1323     neon
1324     vfp
1325     vfpv3
1326 '
1327
1328 ARCH_EXT_LIST_X86='
1329     amd3dnow
1330     amd3dnowext
1331     avx
1332     fma4
1333     mmx
1334     mmxext
1335     sse
1336     sse2
1337     sse3
1338     sse4
1339     sse42
1340     ssse3
1341 '
1342
1343 ARCH_EXT_LIST="
1344     $ARCH_EXT_LIST_ARM
1345     $ARCH_EXT_LIST_X86
1346     altivec
1347     ppc4xx
1348     vis
1349     mipsfpu
1350     mips32r2
1351     mipsdspr1
1352     mipsdspr2
1353 "
1354
1355 HAVE_LIST_CMDLINE='
1356     inline_asm
1357     symver
1358     yasm
1359 '
1360
1361 HAVE_LIST_PUB='
1362     bigendian
1363     fast_unaligned
1364     incompatible_fork_abi
1365 '
1366
1367 MATH_FUNCS="
1368     atanf
1369     atan2f
1370     cbrt
1371     cbrtf
1372     cosf
1373     exp2
1374     exp2f
1375     expf
1376     isinf
1377     isnan
1378     ldexpf
1379     llrint
1380     llrintf
1381     log2
1382     log2f
1383     log10f
1384     lrint
1385     lrintf
1386     powf
1387     rint
1388     round
1389     roundf
1390     sinf
1391     trunc
1392     truncf
1393 "
1394
1395 HAVE_LIST="
1396     $ARCH_EXT_LIST
1397     $(add_suffix _external $ARCH_EXT_LIST)
1398     $(add_suffix _inline   $ARCH_EXT_LIST)
1399     $HAVE_LIST_CMDLINE
1400     $HAVE_LIST_PUB
1401     $THREADS_LIST
1402     $ATOMICS_LIST
1403     $MATH_FUNCS
1404     access
1405     aligned_malloc
1406     aligned_stack
1407     alsa_asoundlib_h
1408     altivec_h
1409     arpa_inet_h
1410     asm_mod_q
1411     asm_mod_y
1412     asm_types_h
1413     atomic_cas_ptr
1414     atomics_native
1415     attribute_may_alias
1416     attribute_packed
1417     cdio_paranoia_h
1418     cdio_paranoia_paranoia_h
1419     CL_cl_h
1420     clock_gettime
1421     closesocket
1422     CommandLineToArgvW
1423     cpunop
1424     CryptGenRandom
1425     dcbzl
1426     dev_bktr_ioctl_bt848_h
1427     dev_bktr_ioctl_meteor_h
1428     dev_ic_bt8xx_h
1429     dev_video_bktr_ioctl_bt848_h
1430     dev_video_meteor_ioctl_meteor_h
1431     direct_h
1432     dlfcn_h
1433     dlopen
1434     dos_paths
1435     dxva_h
1436     ebp_available
1437     ebx_available
1438     fast_64bit
1439     fast_clz
1440     fast_cmov
1441     fcntl
1442     fork
1443     getaddrinfo
1444     gethrtime
1445     getopt
1446     GetProcessAffinityMask
1447     GetProcessMemoryInfo
1448     GetProcessTimes
1449     GetSystemTimeAsFileTime
1450     getrusage
1451     getservbyport
1452     gettimeofday
1453     glob
1454     gnu_as
1455     gsm_h
1456     i686
1457     ibm_asm
1458     inet_aton
1459     io_h
1460     isatty
1461     jack_port_get_latency_range
1462     kbhit
1463     ldbrx
1464     libdc1394_1
1465     libdc1394_2
1466     local_aligned_16
1467     local_aligned_8
1468     localtime_r
1469     loongson
1470     lzo1x_999_compress
1471     machine_ioctl_bt848_h
1472     machine_ioctl_meteor_h
1473     machine_rw_barrier
1474     makeinfo
1475     malloc_h
1476     MapViewOfFile
1477     memalign
1478     MemoryBarrier
1479     mkstemp
1480     mm_empty
1481     mmap
1482     mprotect
1483     msvcrt
1484     nanosleep
1485     openjpeg_1_5_openjpeg_h
1486     PeekNamedPipe
1487     perl
1488     pod2man
1489     poll_h
1490     posix_memalign
1491     pthread_cancel
1492     rdtsc
1493     rsync_contimeout
1494     sched_getaffinity
1495     sdl
1496     SetConsoleTextAttribute
1497     setmode
1498     setrlimit
1499     Sleep
1500     sndio_h
1501     socklen_t
1502     soundcard_h
1503     strerror_r
1504     struct_addrinfo
1505     struct_group_source_req
1506     struct_ip_mreq_source
1507     struct_ipv6_mreq
1508     struct_pollfd
1509     struct_rusage_ru_maxrss
1510     struct_sctp_event_subscribe
1511     struct_sockaddr_in6
1512     struct_sockaddr_sa_len
1513     struct_sockaddr_storage
1514     struct_stat_st_mtim_tv_nsec
1515     struct_v4l2_frmivalenum_discrete
1516     symver_asm_label
1517     symver_gnu_asm
1518     sync_val_compare_and_swap
1519     sysconf
1520     sysctl
1521     sys_mman_h
1522     sys_param_h
1523     sys_resource_h
1524     sys_select_h
1525     sys_soundcard_h
1526     sys_time_h
1527     sys_videoio_h
1528     termios_h
1529     texi2html
1530     threads
1531     unistd_h
1532     usleep
1533     vfp_args
1534     VirtualAlloc
1535     windows_h
1536     winsock2_h
1537     xform_asm
1538     xmm_clobbers
1539 "
1540
1541 # options emitted with CONFIG_ prefix but not available on the command line
1542 CONFIG_EXTRA="
1543     aandcttables
1544     ac3dsp
1545     audio_frame_queue
1546     dsputil
1547     frame_thread_encoder
1548     gcrypt
1549     golomb
1550     gplv3
1551     h264chroma
1552     h264dsp
1553     h264pred
1554     h264qpel
1555     hpeldsp
1556     huffman
1557     lgplv3
1558     lpc
1559     mpegaudio
1560     mpegaudiodsp
1561     mpegvideo
1562     mpegvideoenc
1563     nettle
1564     rangecoder
1565     rtpdec
1566     rtpenc_chain
1567     sinewin
1568     videodsp
1569     vp3dsp
1570 "
1571
1572 CMDLINE_SELECT="
1573     $ARCH_EXT_LIST
1574     $CONFIG_LIST
1575     $HAVE_LIST_CMDLINE
1576     $THREADS_LIST
1577     asm
1578     cross_compile
1579     debug
1580     extra_warnings
1581     logging
1582     lto
1583     optimizations
1584     stripping
1585 "
1586
1587 PATHS_LIST='
1588     bindir
1589     datadir
1590     incdir
1591     libdir
1592     mandir
1593     prefix
1594     shlibdir
1595 '
1596
1597 CMDLINE_SET="
1598     $PATHS_LIST
1599     ar
1600     arch
1601     as
1602     assert_level
1603     build_suffix
1604     cc
1605     cpu
1606     cross_prefix
1607     cxx
1608     dep_cc
1609     extra_version
1610     host_cc
1611     host_cflags
1612     host_ld
1613     host_ldflags
1614     host_libs
1615     host_os
1616     install
1617     ld
1618     logfile
1619     malloc_prefix
1620     nm
1621     optflags
1622     pkg_config
1623     progs_suffix
1624     random_seed
1625     samples
1626     strip
1627     sysinclude
1628     sysroot
1629     target_exec
1630     target_os
1631     target_path
1632     target_samples
1633     toolchain
1634     valgrind
1635     yasmexe
1636 "
1637
1638 CMDLINE_APPEND="
1639     extra_cflags
1640     extra_cxxflags
1641     host_cppflags
1642 "
1643
1644 # code dependency declarations
1645
1646 # architecture extensions
1647
1648 armv5te_deps="arm"
1649 armv6_deps="arm"
1650 armv6t2_deps="arm"
1651 neon_deps="arm"
1652 vfp_deps="arm"
1653 vfpv3_deps="vfp"
1654
1655 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1656
1657 mipsfpu_deps="mips"
1658 mips32r2_deps="mips"
1659 mipsdspr1_deps="mips"
1660 mipsdspr2_deps="mips"
1661
1662 altivec_deps="ppc"
1663 ppc4xx_deps="ppc"
1664
1665 vis_deps="sparc"
1666
1667 x86_64_suggest="fast_cmov i686"
1668
1669 amd3dnow_deps="mmx"
1670 amd3dnowext_deps="amd3dnow"
1671 mmx_deps="x86"
1672 mmxext_deps="mmx"
1673 sse_deps="mmxext"
1674 sse2_deps="sse"
1675 sse3_deps="sse2"
1676 ssse3_deps="sse3"
1677 sse4_deps="ssse3"
1678 sse42_deps="sse4"
1679 avx_deps="sse42"
1680 fma4_deps="avx"
1681
1682 mmx_external_deps="yasm"
1683 mmx_inline_deps="inline_asm"
1684 mmx_suggest="mmx_external mmx_inline"
1685
1686 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1687     eval dep=\$${ext}_deps
1688     eval ${ext}_external_deps='"${dep}_external"'
1689     eval ${ext}_inline_deps='"${dep}_inline"'
1690     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1691 done
1692
1693 aligned_stack_if_any="ppc x86"
1694 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1695 fast_clz_if_any="alpha avr32 mips ppc x86"
1696 fast_unaligned_if_any="ppc x86"
1697
1698 inline_asm_deps="!tms470"
1699 need_memalign="altivec neon sse"
1700
1701 symver_if_any="symver_asm_label symver_gnu_asm"
1702
1703 log2_deps="!msvcrt"
1704
1705 # subsystems
1706 dct_select="rdft"
1707 error_resilience_select="dsputil"
1708 frame_thread_encoder_deps="encoders threads"
1709 lpc_select="dsputil"
1710 mdct_select="fft"
1711 rdft_select="fft"
1712 mpegaudio_select="mpegaudiodsp"
1713 mpegaudiodsp_select="dct"
1714 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1715 mpegvideoenc_select="mpegvideo"
1716
1717 # decoders / encoders
1718 aac_decoder_select="mdct sinewin"
1719 aac_encoder_select="audio_frame_queue mdct sinewin"
1720 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1721 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1722 ac3_encoder_select="mdct ac3dsp dsputil"
1723 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1724 aic_decoder_select="dsputil golomb"
1725 alac_encoder_select="lpc"
1726 als_decoder_select="dsputil"
1727 amrnb_decoder_select="lsp"
1728 amrwb_decoder_select="lsp"
1729 amv_decoder_select="dsputil hpeldsp"
1730 amv_encoder_select="aandcttables"
1731 ape_decoder_select="dsputil"
1732 asv1_decoder_select="dsputil"
1733 asv1_encoder_select="dsputil"
1734 asv2_decoder_select="dsputil"
1735 asv2_encoder_select="dsputil"
1736 atrac1_decoder_select="mdct sinewin"
1737 atrac3_decoder_select="mdct"
1738 bink_decoder_select="dsputil hpeldsp"
1739 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1740 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1741 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1742 cllc_decoder_select="dsputil"
1743 comfortnoise_encoder_select="lpc"
1744 cook_decoder_select="dsputil mdct sinewin"
1745 cscd_decoder_select="lzo"
1746 cscd_decoder_suggest="zlib"
1747 dca_decoder_select="mdct"
1748 dirac_decoder_select="dsputil dwt golomb videodsp"
1749 dnxhd_decoder_select="dsputil"
1750 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1751 dvvideo_decoder_select="dsputil"
1752 dvvideo_encoder_select="dsputil"
1753 dxa_decoder_select="zlib"
1754 eac3_decoder_select="ac3_decoder"
1755 eac3_encoder_select="ac3_encoder"
1756 eamad_decoder_select="aandcttables dsputil mpegvideo"
1757 eatgq_decoder_select="aandcttables"
1758 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1759 exr_decoder_select="zlib"
1760 ffv1_decoder_select="dsputil golomb rangecoder"
1761 ffv1_encoder_select="dsputil rangecoder"
1762 ffvhuff_decoder_select="dsputil"
1763 ffvhuff_encoder_select="dsputil huffman"
1764 flac_decoder_select="golomb"
1765 flac_encoder_select="dsputil golomb lpc"
1766 flashsv_decoder_select="zlib"
1767 flashsv_encoder_select="zlib"
1768 flashsv2_encoder_select="zlib"
1769 flashsv2_decoder_select="zlib"
1770 flv_decoder_select="h263_decoder"
1771 flv_encoder_select="h263_encoder"
1772 fourxm_decoder_select="dsputil"
1773 fraps_decoder_select="dsputil huffman"
1774 g729_decoder_select="dsputil"
1775 h261_decoder_select="error_resilience mpegvideo"
1776 h261_encoder_select="aandcttables mpegvideoenc"
1777 h263_decoder_select="error_resilience h263_parser mpegvideo"
1778 h263_encoder_select="aandcttables mpegvideoenc"
1779 h263i_decoder_select="h263_decoder"
1780 h263p_encoder_select="h263_encoder"
1781 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1782 h264_decoder_suggest="error_resilience"
1783 huffyuv_decoder_select="dsputil"
1784 huffyuv_encoder_select="dsputil huffman"
1785 iac_decoder_select="dsputil fft mdct sinewin"
1786 imc_decoder_select="dsputil fft mdct sinewin"
1787 indeo3_decoder_select="hpeldsp"
1788 interplay_video_decoder_select="hpeldsp"
1789 jpegls_decoder_select="dsputil golomb hpeldsp"
1790 jpegls_encoder_select="golomb"
1791 jv_decoder_select="dsputil"
1792 lagarith_decoder_select="dsputil"
1793 ljpeg_encoder_select="aandcttables mpegvideoenc"
1794 loco_decoder_select="golomb"
1795 mdec_decoder_select="dsputil error_resilience mpegvideo"
1796 mimic_decoder_select="dsputil hpeldsp"
1797 mjpeg_decoder_select="dsputil hpeldsp"
1798 mjpegb_decoder_select="dsputil hpeldsp"
1799 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1800 mlp_decoder_select="dsputil mlp_parser"
1801 motionpixels_decoder_select="dsputil"
1802 mp1_decoder_select="mpegaudio"
1803 mp1float_decoder_select="mpegaudio"
1804 mp2_decoder_select="mpegaudio"
1805 mp2float_decoder_select="mpegaudio"
1806 mp3_decoder_select="mpegaudio"
1807 mp3adu_decoder_select="mpegaudio"
1808 mp3adufloat_decoder_select="mpegaudio"
1809 mp3float_decoder_select="mpegaudio"
1810 mp3on4_decoder_select="mpegaudio"
1811 mp3on4float_decoder_select="mpegaudio"
1812 mpc7_decoder_select="dsputil mpegaudiodsp"
1813 mpc8_decoder_select="dsputil mpegaudiodsp"
1814 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1815 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1816 mpeg1video_decoder_select="error_resilience mpegvideo"
1817 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1818 mpeg2video_decoder_select="error_resilience mpegvideo"
1819 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1820 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1821 mpeg4_encoder_select="h263_encoder"
1822 msmpeg4v1_decoder_select="h263_decoder"
1823 msmpeg4v2_decoder_select="h263_decoder"
1824 msmpeg4v2_encoder_select="h263_encoder"
1825 msmpeg4v3_decoder_select="h263_decoder"
1826 msmpeg4v3_encoder_select="h263_encoder"
1827 mss2_decoder_select="error_resilience vc1_decoder"
1828 mxpeg_decoder_select="dsputil hpeldsp"
1829 nellymoser_decoder_select="mdct sinewin"
1830 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1831 nuv_decoder_select="dsputil lzo"
1832 png_decoder_select="zlib"
1833 png_encoder_select="dsputil zlib"
1834 prores_decoder_select="dsputil"
1835 prores_encoder_select="dsputil"
1836 qcelp_decoder_select="lsp"
1837 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1838 ra_144_encoder_select="audio_frame_queue lpc"
1839 ralf_decoder_select="golomb"
1840 rtjpeg_decoder_select="dsputil"
1841 rv10_decoder_select="error_resilience h263_decoder"
1842 rv10_encoder_select="h263_encoder"
1843 rv20_decoder_select="error_resilience h263_decoder"
1844 rv20_encoder_select="h263_encoder"
1845 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1846 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1847 shorten_decoder_select="golomb"
1848 sipr_decoder_select="lsp"
1849 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1850 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1851 sonic_decoder_select="golomb"
1852 sonic_encoder_select="golomb"
1853 sonic_ls_encoder_select="golomb"
1854 sp5x_decoder_select="dsputil hpeldsp"
1855 svq1_decoder_select="hpeldsp"
1856 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1857 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1858 svq3_decoder_suggest="error_resilience zlib"
1859 tak_decoder_select="dsputil"
1860 theora_decoder_select="vp3_decoder"
1861 tiff_decoder_suggest="zlib"
1862 tiff_encoder_suggest="zlib"
1863 thp_decoder_select="dsputil hpeldsp"
1864 truehd_decoder_select="mlp_parser"
1865 truemotion2_decoder_select="dsputil"
1866 truespeech_decoder_select="dsputil"
1867 tscc_decoder_select="zlib"
1868 twinvq_decoder_select="mdct lsp sinewin"
1869 utvideo_decoder_select="dsputil"
1870 utvideo_encoder_select="dsputil huffman"
1871 vble_decoder_select="dsputil"
1872 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1873 vc1image_decoder_select="vc1_decoder"
1874 vorbis_decoder_select="mdct"
1875 vorbis_encoder_select="mdct"
1876 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1877 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1878 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1879 vp6a_decoder_select="vp6_decoder"
1880 vp6f_decoder_select="vp6_decoder"
1881 vp8_decoder_select="h264pred videodsp"
1882 wmapro_decoder_select="mdct sinewin"
1883 wmav1_decoder_select="mdct sinewin"
1884 wmav1_encoder_select="mdct sinewin"
1885 wmav2_decoder_select="mdct sinewin"
1886 wmav2_encoder_select="mdct sinewin"
1887 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1888 wmv1_decoder_select="h263_decoder"
1889 wmv1_encoder_select="h263_encoder"
1890 wmv2_decoder_select="h263_decoder videodsp"
1891 wmv2_encoder_select="h263_encoder"
1892 wmv3_decoder_select="vc1_decoder"
1893 wmv3image_decoder_select="wmv3_decoder"
1894 zerocodec_decoder_select="zlib"
1895 zlib_decoder_select="zlib"
1896 zlib_encoder_select="zlib"
1897 zmbv_decoder_select="zlib"
1898 zmbv_encoder_select="zlib"
1899
1900 # hardware accelerators
1901 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1902 dxva2_deps="dxva2api_h"
1903 vaapi_deps="va_va_h"
1904 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1905 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1906 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1907
1908 h263_vaapi_hwaccel_deps="vaapi"
1909 h263_vaapi_hwaccel_select="h263_decoder"
1910 h263_vdpau_hwaccel_deps="vdpau"
1911 h263_vdpau_hwaccel_select="h263_decoder"
1912 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1913 h264_dxva2_hwaccel_deps="dxva2"
1914 h264_dxva2_hwaccel_select="h264_decoder"
1915 h264_vaapi_hwaccel_deps="vaapi"
1916 h264_vaapi_hwaccel_select="h264_decoder"
1917 h264_vda_decoder_deps="vda"
1918 h264_vda_decoder_select="h264_decoder"
1919 h264_vda_hwaccel_deps="vda"
1920 h264_vda_hwaccel_select="h264_decoder"
1921 h264_vdpau_decoder_deps="vdpau"
1922 h264_vdpau_decoder_select="h264_decoder"
1923 h264_vdpau_hwaccel_deps="vdpau"
1924 h264_vdpau_hwaccel_select="h264_decoder"
1925 mpeg_vdpau_decoder_deps="vdpau"
1926 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1927 mpeg1_vdpau_decoder_deps="vdpau"
1928 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1929 mpeg1_vdpau_hwaccel_deps="vdpau"
1930 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1931 mpeg2_crystalhd_decoder_select="crystalhd"
1932 mpeg2_dxva2_hwaccel_deps="dxva2"
1933 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1934 mpeg2_vaapi_hwaccel_deps="vaapi"
1935 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1936 mpeg2_vdpau_hwaccel_deps="vdpau"
1937 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1938 mpeg4_crystalhd_decoder_select="crystalhd"
1939 mpeg4_vaapi_hwaccel_deps="vaapi"
1940 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1941 mpeg4_vdpau_decoder_deps="vdpau"
1942 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1943 mpeg4_vdpau_hwaccel_deps="vdpau"
1944 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1945 msmpeg4_crystalhd_decoder_select="crystalhd"
1946 vc1_crystalhd_decoder_select="crystalhd"
1947 vc1_dxva2_hwaccel_deps="dxva2"
1948 vc1_dxva2_hwaccel_select="vc1_decoder"
1949 vc1_vaapi_hwaccel_deps="vaapi"
1950 vc1_vaapi_hwaccel_select="vc1_decoder"
1951 vc1_vdpau_decoder_deps="vdpau"
1952 vc1_vdpau_decoder_select="vc1_decoder"
1953 vc1_vdpau_hwaccel_deps="vdpau"
1954 vc1_vdpau_hwaccel_select="vc1_decoder"
1955 wmv3_crystalhd_decoder_select="crystalhd"
1956 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1957 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1958 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1959 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1960
1961 # parsers
1962 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1963 mpeg4video_parser_select="error_resilience mpegvideo"
1964 mpegvideo_parser_select="error_resilience mpegvideo"
1965 vc1_parser_select="mpegvideo"
1966
1967 # external libraries
1968 libaacplus_encoder_deps="libaacplus"
1969 libcelt_decoder_deps="libcelt"
1970 libfaac_encoder_deps="libfaac"
1971 libfaac_encoder_select="audio_frame_queue"
1972 libfdk_aac_encoder_deps="libfdk_aac"
1973 libfdk_aac_encoder_select="audio_frame_queue"
1974 libgsm_decoder_deps="libgsm"
1975 libgsm_encoder_deps="libgsm"
1976 libgsm_ms_decoder_deps="libgsm"
1977 libgsm_ms_encoder_deps="libgsm"
1978 libilbc_decoder_deps="libilbc"
1979 libilbc_encoder_deps="libilbc"
1980 libmodplug_demuxer_deps="libmodplug"
1981 libmp3lame_encoder_deps="libmp3lame"
1982 libmp3lame_encoder_select="audio_frame_queue"
1983 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1984 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1985 libopencore_amrnb_encoder_select="audio_frame_queue"
1986 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1987 libopenjpeg_decoder_deps="libopenjpeg"
1988 libopenjpeg_encoder_deps="libopenjpeg"
1989 libopus_decoder_deps="libopus"
1990 libopus_encoder_deps="libopus"
1991 libopus_encoder_select="audio_frame_queue"
1992 libquvi_demuxer_deps="libquvi"
1993 libschroedinger_decoder_deps="libschroedinger"
1994 libschroedinger_encoder_deps="libschroedinger"
1995 libshine_encoder_deps="libshine"
1996 libshine_encoder_select="audio_frame_queue"
1997 libspeex_decoder_deps="libspeex"
1998 libspeex_encoder_deps="libspeex"
1999 libspeex_encoder_select="audio_frame_queue"
2000 libstagefright_h264_decoder_deps="libstagefright_h264"
2001 libtheora_encoder_deps="libtheora"
2002 libtwolame_encoder_deps="libtwolame"
2003 libvo_aacenc_encoder_deps="libvo_aacenc"
2004 libvo_aacenc_encoder_select="audio_frame_queue"
2005 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2006 libvorbis_decoder_deps="libvorbis"
2007 libvorbis_encoder_deps="libvorbis"
2008 libvorbis_encoder_select="audio_frame_queue"
2009 libvpx_vp8_decoder_deps="libvpx"
2010 libvpx_vp8_encoder_deps="libvpx"
2011 libvpx_vp9_decoder_deps="libvpx"
2012 libvpx_vp9_encoder_deps="libvpx"
2013 libx264_encoder_deps="libx264"
2014 libx264rgb_encoder_deps="libx264"
2015 libxavs_encoder_deps="libxavs"
2016 libxvid_encoder_deps="libxvid"
2017 libutvideo_decoder_deps="libutvideo"
2018 libutvideo_encoder_deps="libutvideo"
2019
2020 # demuxers / muxers
2021 ac3_demuxer_select="ac3_parser"
2022 asf_stream_muxer_select="asf_muxer"
2023 avisynth_demuxer_deps="avisynth"
2024 dirac_demuxer_select="dirac_parser"
2025 dts_demuxer_select="dca_parser"
2026 dtshd_demuxer_select="dca_parser"
2027 eac3_demuxer_select="ac3_parser"
2028 f4v_muxer_select="mov_muxer"
2029 flac_demuxer_select="flac_parser"
2030 ipod_muxer_select="mov_muxer"
2031 ismv_muxer_select="mov_muxer"
2032 libnut_demuxer_deps="libnut"
2033 libnut_muxer_deps="libnut"
2034 matroska_audio_muxer_select="matroska_muxer"
2035 matroska_demuxer_suggest="bzlib lzo zlib"
2036 mov_demuxer_suggest="zlib"
2037 mov_muxer_select="rtpenc_chain"
2038 mp3_demuxer_select="mpegaudio_parser"
2039 mp4_muxer_select="mov_muxer"
2040 mpegts_muxer_select="adts_muxer latm_muxer"
2041 mpegtsraw_demuxer_select="mpegts_demuxer"
2042 mxf_d10_muxer_select="mxf_muxer"
2043 ogg_demuxer_select="golomb"
2044 psp_muxer_select="mov_muxer"
2045 rtp_demuxer_select="sdp_demuxer"
2046 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2047 rtsp_demuxer_select="http_protocol rtpdec"
2048 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2049 sap_demuxer_select="sdp_demuxer"
2050 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2051 sdp_demuxer_select="rtpdec"
2052 smoothstreaming_muxer_select="ismv_muxer"
2053 spdif_muxer_select="aac_parser"
2054 tak_demuxer_select="tak_parser"
2055 tg2_muxer_select="mov_muxer"
2056 tgp_muxer_select="mov_muxer"
2057 vobsub_demuxer_select="mpegps_demuxer"
2058 w64_demuxer_deps="wav_demuxer"
2059 w64_muxer_deps="wav_muxer"
2060
2061 # indevs / outdevs
2062 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2063 alsa_outdev_deps="alsa_asoundlib_h"
2064 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2065 caca_outdev_deps="libcaca"
2066 dshow_indev_deps="IBaseFilter"
2067 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2068 dv1394_indev_deps="dv1394 dv_demuxer"
2069 fbdev_indev_deps="linux_fb_h"
2070 iec61883_indev_deps="libiec61883"
2071 jack_indev_deps="jack_jack_h sem_timedwait"
2072 lavfi_indev_deps="avfilter"
2073 libcdio_indev_deps="libcdio"
2074 libdc1394_indev_deps="libdc1394"
2075 libv4l2_indev_deps="libv4l2"
2076 openal_indev_deps="openal"
2077 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2078 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2079 pulse_indev_deps="libpulse"
2080 sdl_outdev_deps="sdl"
2081 sndio_indev_deps="sndio_h"
2082 sndio_outdev_deps="sndio_h"
2083 v4l_indev_deps="linux_videodev_h"
2084 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2085 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2086 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2087 vfwcap_indev_extralibs="-lavicap32"
2088 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2089 xv_outdev_extralibs="-lXv -lX11 -lXext"
2090 x11grab_indev_deps="x11grab"
2091
2092 # protocols
2093 bluray_protocol_deps="libbluray"
2094 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2095 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2096 ffrtmpcrypt_protocol_select="tcp_protocol"
2097 ffrtmphttp_protocol_deps="!librtmp_protocol"
2098 ffrtmphttp_protocol_select="http_protocol"
2099 ftp_protocol_select="tcp_protocol"
2100 gopher_protocol_select="network"
2101 httpproxy_protocol_select="tcp_protocol"
2102 http_protocol_select="tcp_protocol"
2103 https_protocol_select="tls_protocol"
2104 librtmp_protocol_deps="librtmp"
2105 librtmpe_protocol_deps="librtmp"
2106 librtmps_protocol_deps="librtmp"
2107 librtmpt_protocol_deps="librtmp"
2108 librtmpte_protocol_deps="librtmp"
2109 mmsh_protocol_select="http_protocol"
2110 mmst_protocol_select="network"
2111 rtmp_protocol_deps="!librtmp_protocol"
2112 rtmp_protocol_select="tcp_protocol"
2113 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2114 rtmps_protocol_deps="!librtmp_protocol"
2115 rtmps_protocol_select="tls_protocol"
2116 rtmpt_protocol_select="ffrtmphttp_protocol"
2117 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2118 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2119 rtp_protocol_select="udp_protocol"
2120 sctp_protocol_deps="struct_sctp_event_subscribe"
2121 sctp_protocol_select="network"
2122 srtp_protocol_select="rtp_protocol"
2123 tcp_protocol_select="network"
2124 tls_protocol_deps_any="openssl gnutls"
2125 tls_protocol_select="tcp_protocol"
2126 udp_protocol_select="network"
2127
2128 # filters
2129 aconvert_filter_deps="swresample"
2130 amovie_filter_deps="avcodec avformat"
2131 aresample_filter_deps="swresample"
2132 ass_filter_deps="libass"
2133 asyncts_filter_deps="avresample"
2134 atempo_filter_deps="avcodec rdft"
2135 azmq_filter_deps="libzmq"
2136 blackframe_filter_deps="gpl"
2137 boxblur_filter_deps="gpl"
2138 colormatrix_filter_deps="gpl"
2139 cropdetect_filter_deps="gpl"
2140 dctdnoiz_filter_deps="avcodec fft"
2141 delogo_filter_deps="gpl"
2142 deshake_filter_deps="avcodec"
2143 deshake_filter_select="dsputil"
2144 drawtext_filter_deps="libfreetype"
2145 ebur128_filter_deps="gpl"
2146 flite_filter_deps="libflite"
2147 frei0r_filter_deps="frei0r dlopen"
2148 frei0r_filter_extralibs='$ldl'
2149 frei0r_src_filter_deps="frei0r dlopen"
2150 frei0r_src_filter_extralibs='$ldl'
2151 geq_filter_deps="gpl"
2152 histeq_filter_deps="gpl"
2153 hqdn3d_filter_deps="gpl"
2154 hue_filter_deps="gpl"
2155 interlace_filter_deps="gpl"
2156 kerndeint_filter_deps="gpl"
2157 movie_filter_deps="avcodec avformat"
2158 mp_filter_deps="gpl avcodec swscale inline_asm"
2159 mpdecimate_filter_deps="gpl avcodec"
2160 mptestsrc_filter_deps="gpl"
2161 negate_filter_deps="lut_filter"
2162 noise_filter_deps="gpl"
2163 resample_filter_deps="avresample"
2164 ocv_filter_deps="libopencv"
2165 owdenoise_filter_deps="gpl"
2166 pan_filter_deps="swresample"
2167 pp_filter_deps="gpl postproc"
2168 removelogo_filter_deps="avcodec avformat swscale"
2169 scale_filter_deps="swscale"
2170 smartblur_filter_deps="gpl swscale"
2171 showspectrum_filter_deps="avcodec rdft"
2172 stereo3d_filter_deps="gpl"
2173 subtitles_filter_deps="avformat avcodec libass"
2174 super2xsai_filter_deps="gpl"
2175 tinterlace_filter_deps="gpl"
2176 vidstabdetect_filter_deps="libvidstab"
2177 vidstabtransform_filter_deps="libvidstab"
2178 yadif_filter_deps="gpl"
2179 pixfmts_super2xsai_test_deps="super2xsai_filter"
2180 tinterlace_merge_test_deps="tinterlace_filter"
2181 tinterlace_pad_test_deps="tinterlace_filter"
2182 zmq_filter_deps="libzmq"
2183
2184 # libraries
2185 avcodec_deps="avutil"
2186 avdevice_deps="avutil avcodec avformat"
2187 avfilter_deps="avutil"
2188 avformat_deps="avutil avcodec"
2189 avresample_deps="avutil"
2190 postproc_deps="avutil gpl"
2191 swscale_deps="avutil"
2192
2193 # programs
2194 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2195 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2196                null_filter
2197                setpts_filter trim_filter"
2198 ffplay_deps="avcodec avformat swscale swresample sdl"
2199 ffplay_select="rdft crop_filter"
2200 ffprobe_deps="avcodec avformat"
2201 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2202 ffserver_extralibs='$ldl'
2203
2204 # documentation
2205 podpages_deps="perl"
2206 manpages_deps="perl pod2man"
2207 htmlpages_deps="texi2html"
2208 txtpages_deps="makeinfo"
2209 doc_deps_any="manpages htmlpages podpages txtpages"
2210
2211 # default parameters
2212
2213 logfile="config.log"
2214
2215 # installation paths
2216 prefix_default="/usr/local"
2217 bindir_default='${prefix}/bin'
2218 datadir_default='${prefix}/share/ffmpeg'
2219 incdir_default='${prefix}/include'
2220 libdir_default='${prefix}/lib'
2221 mandir_default='${prefix}/share/man'
2222 shlibdir_default="$libdir_default"
2223
2224 # toolchain
2225 ar_default="ar"
2226 cc_default="gcc"
2227 cxx_default="g++"
2228 host_cc_default="gcc"
2229 cp_f="cp -f"
2230 install="install"
2231 ln_s="ln -s -f"
2232 nm_default="nm -g"
2233 objformat="elf"
2234 pkg_config_default=pkg-config
2235 ranlib="ranlib"
2236 strip_default="strip"
2237 yasmexe_default="yasm"
2238
2239 nogas=":"
2240
2241 # machine
2242 arch_default=$(uname -m)
2243 cpu="generic"
2244
2245 # OS
2246 target_os_default=$(tolower $(uname -s))
2247 host_os=$target_os_default
2248
2249 # configurable options
2250 enable $PROGRAM_LIST
2251 enable $DOCUMENT_LIST
2252 enable $(filter_out avresample $LIBRARY_LIST)
2253 enable stripping
2254
2255 enable asm
2256 enable debug
2257 enable doc
2258 enable optimizations
2259 enable runtime_cpudetect
2260 enable safe_bitstream_reader
2261 enable static
2262 enable swscale_alpha
2263
2264 # Enable hwaccels by default.
2265 enable dxva2 vaapi vdpau
2266
2267 # build settings
2268 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2269 FFSERVERLDFLAGS=-Wl,-E
2270 LIBPREF="lib"
2271 LIBSUF=".a"
2272 FULLNAME='$(NAME)$(BUILDSUF)'
2273 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2274 SLIBPREF="lib"
2275 SLIBSUF=".so"
2276 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2277 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2278 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2279 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2280 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2281 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2282
2283 asflags_filter=echo
2284 cflags_filter=echo
2285 ldflags_filter=echo
2286
2287 AS_C='-c'
2288 AS_O='-o $@'
2289 CC_C='-c'
2290 CC_E='-E -o $@'
2291 CC_O='-o $@'
2292 CXX_C='-c'
2293 CXX_O='-o $@'
2294 LD_O='-o $@'
2295 LD_LIB='-l%'
2296 LD_PATH='-L'
2297 HOSTCC_C='-c'
2298 HOSTCC_O='-o $@'
2299 HOSTLD_O='-o $@'
2300
2301 host_cflags='-O3 -g'
2302 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2303 host_libs='-lm'
2304 host_cflags_filter=echo
2305 host_ldflags_filter=echo
2306
2307 target_path='$(CURDIR)'
2308
2309 # since the object filename is not given with the -MM flag, the compiler
2310 # is only able to print the basename, and we must add the path ourselves
2311 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2312 DEPFLAGS='-MM'
2313
2314 # find source path
2315 if test -f configure; then
2316     source_path=.
2317 else
2318     source_path=$(cd $(dirname "$0"); pwd)
2319     echo "$source_path" | grep -q '[[:blank:]]' &&
2320         die "Out of tree builds are impossible with whitespace in source path."
2321     test -e "$source_path/config.h" &&
2322         die "Out of tree builds are impossible with config.h in source dir."
2323 fi
2324
2325 for v in "$@"; do
2326     r=${v#*=}
2327     l=${v%"$r"}
2328     r=$(sh_quote "$r")
2329     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2330 done
2331
2332 find_things(){
2333     thing=$1
2334     pattern=$2
2335     file=$source_path/$3
2336     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2337 }
2338
2339 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2340 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2341 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2342 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2343 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2344 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2345 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2346 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2347 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2348 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2349 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2350
2351 ALL_COMPONENTS="
2352     $BSF_LIST
2353     $DECODER_LIST
2354     $DEMUXER_LIST
2355     $ENCODER_LIST
2356     $FILTER_LIST
2357     $HWACCEL_LIST
2358     $INDEV_LIST
2359     $MUXER_LIST
2360     $OUTDEV_LIST
2361     $PARSER_LIST
2362     $PROTOCOL_LIST
2363 "
2364
2365 for n in $COMPONENT_LIST; do
2366     v=$(toupper ${n%s})_LIST
2367     eval enable \$$v
2368     eval ${n}_if_any="\$$v"
2369 done
2370
2371 enable $ARCH_EXT_LIST
2372
2373 die_unknown(){
2374     echo "Unknown option \"$1\"."
2375     echo "See $0 --help for available options."
2376     exit 1
2377 }
2378
2379 print_3_columns() {
2380     cat | tr ' ' '\n' | sort | pr -r -3 -t
2381 }
2382
2383 show_list() {
2384     suffix=_$1
2385     shift
2386     echo $* | sed s/$suffix//g | print_3_columns
2387     exit 0
2388 }
2389
2390 rand_list(){
2391     IFS=', '
2392     set -- $*
2393     unset IFS
2394     for thing; do
2395         comp=${thing%:*}
2396         prob=${thing#$comp}
2397         prob=${prob#:}
2398         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2399         echo "prob ${prob:-0.5}"
2400         printf '%s\n' $comp
2401     done
2402 }
2403
2404 do_random(){
2405     action=$1
2406     shift
2407     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2408     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2409 }
2410
2411 for opt do
2412     optval="${opt#*=}"
2413     case "$opt" in
2414         --extra-ldflags=*)
2415             add_ldflags $optval
2416         ;;
2417         --extra-libs=*)
2418             add_extralibs $optval
2419         ;;
2420         --disable-devices)
2421             disable $INDEV_LIST $OUTDEV_LIST
2422         ;;
2423         --enable-debug=*)
2424             debuglevel="$optval"
2425         ;;
2426         --disable-programs)
2427             disable $PROGRAM_LIST
2428         ;;
2429         --disable-everything)
2430             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2431         ;;
2432         --disable-all)
2433             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2434             disable $LIBRARY_LIST $PROGRAM_LIST doc
2435         ;;
2436         --enable-random|--disable-random)
2437             action=${opt%%-random}
2438             do_random ${action#--} $COMPONENT_LIST
2439         ;;
2440         --enable-random=*|--disable-random=*)
2441             action=${opt%%-random=*}
2442             do_random ${action#--} $optval
2443         ;;
2444         --enable-*=*|--disable-*=*)
2445             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2446             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2447             eval list=\$$(toupper $thing)_LIST
2448             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2449             list=$(filter "$name" $list)
2450             [ "$list" = "" ] && warn "Option $opt did not match anything"
2451             $action $list
2452         ;;
2453         --enable-?*|--disable-?*)
2454             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2455             if is_in $option $COMPONENT_LIST; then
2456                 test $action = disable && action=unset
2457                 eval $action \$$(toupper ${option%s})_LIST
2458             elif is_in $option $CMDLINE_SELECT; then
2459                 $action $option
2460             else
2461                 die_unknown $opt
2462             fi
2463         ;;
2464         --list-*)
2465             NAME="${opt#--list-}"
2466             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2467             NAME=${NAME%s}
2468             eval show_list $NAME \$$(toupper $NAME)_LIST
2469         ;;
2470         --help|-h) show_help
2471         ;;
2472         --fatal-warnings) enable fatal_warnings
2473         ;;
2474         *)
2475             optname="${opt%%=*}"
2476             optname="${optname#--}"
2477             optname=$(echo "$optname" | sed 's/-/_/g')
2478             if is_in $optname $CMDLINE_SET; then
2479                 eval $optname='$optval'
2480             elif is_in $optname $CMDLINE_APPEND; then
2481                 append $optname "$optval"
2482             else
2483                 die_unknown $opt
2484             fi
2485         ;;
2486     esac
2487 done
2488
2489 disabled logging && logfile=/dev/null
2490
2491 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2492 set >> $logfile
2493
2494 test -n "$cross_prefix" && enable cross_compile
2495
2496 if enabled cross_compile; then
2497     test -n "$arch" && test -n "$target_os" ||
2498         die "Must specify target arch and OS when cross-compiling"
2499 fi
2500
2501 ar_default="${cross_prefix}${ar_default}"
2502 cc_default="${cross_prefix}${cc_default}"
2503 cxx_default="${cross_prefix}${cxx_default}"
2504 nm_default="${cross_prefix}${nm_default}"
2505 pkg_config_default="${cross_prefix}${pkg_config_default}"
2506 ranlib="${cross_prefix}${ranlib}"
2507 strip_default="${cross_prefix}${strip_default}"
2508
2509 sysinclude_default="${sysroot}/usr/include"
2510
2511 test -n "$valgrind" && toolchain="valgrind-memcheck"
2512
2513 case "$toolchain" in
2514     clang-asan)
2515         cc_default="clang"
2516         add_cflags  -fsanitize=address
2517         add_ldflags -fsanitize=address
2518     ;;
2519     clang-tsan)
2520         cc_default="clang"
2521         add_cflags  -fsanitize=thread -pie
2522         add_ldflags -fsanitize=thread -pie
2523     ;;
2524     gcc-asan)
2525         cc_default="gcc"
2526         add_cflags  -fsanitize=address
2527         add_ldflags -fsanitize=address
2528     ;;
2529     gcc-tsan)
2530         cc_default="gcc"
2531         add_cflags  -fsanitize=thread -pie -fPIC
2532         add_ldflags -fsanitize=thread -pie -fPIC
2533     ;;
2534     valgrind-massif)
2535         target_exec_default=${valgrind:-"valgrind"}
2536         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2537     ;;
2538     valgrind-memcheck)
2539         target_exec_default=${valgrind:-"valgrind"}
2540         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2541     ;;
2542     msvc)
2543         cc_default="c99wrap cl"
2544         ld_default="c99wrap link"
2545         nm_default="dumpbin -symbols"
2546         ar_default="lib"
2547         target_os_default="win32"
2548     ;;
2549     icl)
2550         cc_default="c99wrap -noconv icl"
2551         ld_default="c99wrap xilink"
2552         nm_default="dumpbin -symbols"
2553         ar_default="xilib"
2554         target_os_default="win32"
2555     ;;
2556     gcov)
2557         add_cflags  -fprofile-arcs -ftest-coverage
2558         add_ldflags -fprofile-arcs -ftest-coverage
2559     ;;
2560     ?*)
2561         die "Unknown toolchain $toolchain"
2562     ;;
2563 esac
2564
2565 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2566 enabled cross_compile || host_cc_default=$cc
2567 set_default host_cc
2568
2569 if ! $pkg_config --version >/dev/null 2>&1; then
2570     warn "$pkg_config not found, library detection may fail."
2571     pkg_config=false
2572 fi
2573
2574 exesuf() {
2575     case $1 in
2576         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2577     esac
2578 }
2579
2580 EXESUF=$(exesuf $target_os)
2581 HOSTEXESUF=$(exesuf $host_os)
2582
2583 # set temporary file name
2584 : ${TMPDIR:=$TEMPDIR}
2585 : ${TMPDIR:=$TMP}
2586 : ${TMPDIR:=/tmp}
2587
2588 if ! check_cmd mktemp -u XXXXXX; then
2589     # simple replacement for missing mktemp
2590     # NOT SAFE FOR GENERAL USE
2591     mktemp(){
2592         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2593     }
2594 fi
2595
2596 tmpfile(){
2597     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2598         (set -C; exec > $tmp) 2>/dev/null ||
2599         die "Unable to create temporary file in $TMPDIR."
2600     append TMPFILES $tmp
2601     eval $1=$tmp
2602 }
2603
2604 trap 'rm -f -- $TMPFILES' EXIT
2605
2606 tmpfile TMPASM .asm
2607 tmpfile TMPC   .c
2608 tmpfile TMPCPP .cpp
2609 tmpfile TMPE   $EXESUF
2610 tmpfile TMPH   .h
2611 tmpfile TMPO   .o
2612 tmpfile TMPS   .S
2613 tmpfile TMPSH  .sh
2614 tmpfile TMPV   .ver
2615
2616 unset -f mktemp
2617
2618 chmod +x $TMPE
2619
2620 # make sure we can execute files in $TMPDIR
2621 cat > $TMPSH 2>> $logfile <<EOF
2622 #! /bin/sh
2623 EOF
2624 chmod +x $TMPSH >> $logfile 2>&1
2625 if ! $TMPSH >> $logfile 2>&1; then
2626     cat <<EOF
2627 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2628 variable to another directory and make sure that it is not mounted noexec.
2629 EOF
2630     die "Sanity test failed."
2631 fi
2632
2633 ccc_flags(){
2634     for flag; do
2635         case $flag in
2636             -std=c99)           echo -c99                       ;;
2637             -mcpu=*)            echo -arch ${flag#*=}           ;;
2638             -mieee)             echo -ieee                      ;;
2639             -O*|-fast)          echo $flag                      ;;
2640             -fno-math-errno)    echo -assume nomath_errno       ;;
2641             -g)                 echo -g3                        ;;
2642             -Wall)              echo -msg_enable level2         ;;
2643             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2644             -Wl,*)              echo $flag                      ;;
2645             -f*|-W*)                                            ;;
2646             *)                  echo $flag                      ;;
2647         esac
2648    done
2649 }
2650
2651 msvc_flags(){
2652     for flag; do
2653         case $flag in
2654             -fomit-frame-pointer) echo -Oy ;;
2655             -g)                   echo -Z7 ;;
2656             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2657                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2658                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2659                                        -wd4554 \
2660                                        -wd4996 -wd4273 ;;
2661             -std=c99)             ;;
2662             -fno-math-errno)      ;;
2663             -fno-common)          ;;
2664             -fno-signed-zeros)    ;;
2665             -fPIC)                ;;
2666             -mthumb)              ;;
2667             -march=*)             ;;
2668             -lz)                  echo zlib.lib ;;
2669             -lavifil32)           echo vfw32.lib ;;
2670             -lavicap32)           echo vfw32.lib user32.lib ;;
2671             -l*)                  echo ${flag#-l}.lib ;;
2672             *)                    echo $flag ;;
2673         esac
2674     done
2675 }
2676
2677 pgi_flags(){
2678     for flag; do
2679         case $flag in
2680             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2681             -fomit-frame-pointer) echo -Mnoframe ;;
2682             -g)                   echo -gopt ;;
2683             *)                    echo $flag ;;
2684         esac
2685     done
2686 }
2687
2688 suncc_flags(){
2689     for flag; do
2690         case $flag in
2691             -march=*|-mcpu=*)
2692                 case "${flag#*=}" in
2693                     native)                   echo -xtarget=native       ;;
2694                     v9|niagara)               echo -xarch=sparc          ;;
2695                     ultrasparc)               echo -xarch=sparcvis       ;;
2696                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2697                     i586|pentium)             echo -xchip=pentium        ;;
2698                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2699                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2700                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2701                     pentium4*)          echo -xtarget=pentium4           ;;
2702                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2703                     *-sse3)             echo -xarch=sse3                 ;;
2704                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2705                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2706                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2707                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2708                     bdver*)                   echo -xarch=avx            ;;
2709                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2710                     k8|opteron|athlon64|athlon-fx)
2711                                               echo -xarch=sse2a          ;;
2712                     athlon*)                  echo -xarch=pentium_proa   ;;
2713                 esac
2714                 ;;
2715             -std=c99)             echo -xc99              ;;
2716             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2717             -fPIC)                echo -KPIC -xcode=pic32 ;;
2718             -W*,*)                echo $flag              ;;
2719             -f*-*|-W*|-mimpure-text)                      ;;
2720             -shared)              echo -G                 ;;
2721             *)                    echo $flag              ;;
2722         esac
2723     done
2724 }
2725
2726 tms470_flags(){
2727     for flag; do
2728         case $flag in
2729             -march=*|-mcpu=*)
2730                 case "${flag#*=}" in
2731                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2732                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2733                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2734                     armv6*|arm11*)          echo -mv=6   ;;
2735                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2736                                             echo -mv=5e  ;;
2737                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2738                 esac
2739                 ;;
2740             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2741             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2742             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2743             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2744             -msoft-float)   echo --float_support=vfplib       ;;
2745             -O[0-3]|-mf=*)  echo $flag                        ;;
2746             -g)             echo -g -mn                       ;;
2747             -pds=*)         echo $flag                        ;;
2748             -D*|-I*)        echo $flag                        ;;
2749             --gcc|--abi=*)  echo $flag                        ;;
2750             -me)            echo $flag                        ;;
2751         esac
2752     done
2753 }
2754
2755 probe_cc(){
2756     pfx=$1
2757     _cc=$2
2758
2759     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2760     unset _ld_o _ldflags _ld_lib _ld_path
2761     unset _depflags _DEPCMD _DEPFLAGS
2762     _flags_filter=echo
2763
2764     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2765         _type=llvm_gcc
2766         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2767         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2768         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2769         _cflags_speed='-O3'
2770         _cflags_size='-Os'
2771     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2772         _type=gcc
2773         gcc_version=$($_cc --version | head -n1)
2774         gcc_basever=$($_cc -dumpversion)
2775         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2776         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2777         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2778         if ! $_cc -dumpversion | grep -q '^2\.'; then
2779             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2780         fi
2781         _cflags_speed='-O3'
2782         _cflags_size='-Os'
2783     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2784         _type=icc
2785         _ident=$($_cc --version | head -n1)
2786         _depflags='-MMD'
2787         _cflags_speed='-O3'
2788         _cflags_size='-Os'
2789         _cflags_noopt='-O1'
2790     elif $_cc -v 2>&1 | grep -q xlc; then
2791         _type=xlc
2792         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2793         _cflags_speed='-O5'
2794         _cflags_size='-O5 -qcompact'
2795     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2796         _type=ccc
2797         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2798         _DEPFLAGS='-M'
2799         _cflags_speed='-fast'
2800         _cflags_size='-O1'
2801         _flags_filter=ccc_flags
2802     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2803         test -d "$sysroot" || die "No valid sysroot specified."
2804         _type=armcc
2805         _ident=$($_cc --vsn | head -n1)
2806         armcc_conf="$PWD/armcc.conf"
2807         $_cc --arm_linux_configure                 \
2808              --arm_linux_config_file="$armcc_conf" \
2809              --configure_sysroot="$sysroot"        \
2810              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2811              die "Error creating armcc configuration file."
2812         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2813         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2814         as_default="${cross_prefix}gcc"
2815         _depflags='-MMD'
2816         _cflags_speed='-O3'
2817         _cflags_size='-Os'
2818     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2819         _type=tms470
2820         _ident=$($_cc -version | head -n1 | tr -s ' ')
2821         _flags='--gcc --abi=eabi -me'
2822         _cc_e='-ppl -fe=$@'
2823         _cc_o='-fe=$@'
2824         _depflags='-ppa -ppd=$(@:.o=.d)'
2825         _cflags_speed='-O3 -mf=5'
2826         _cflags_size='-O3 -mf=2'
2827         _flags_filter=tms470_flags
2828     elif $_cc -v 2>&1 | grep -q clang; then
2829         _type=clang
2830         _ident=$($_cc --version | head -n1)
2831         _depflags='-MMD'
2832         _cflags_speed='-O3'
2833         _cflags_size='-Os'
2834     elif $_cc -V 2>&1 | grep -q Sun; then
2835         _type=suncc
2836         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2837         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2838         _DEPFLAGS='-xM1 -xc99'
2839         _ldflags='-std=c99'
2840         _cflags_speed='-O5'
2841         _cflags_size='-O5 -xspace'
2842         _flags_filter=suncc_flags
2843     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2844         _type=pathscale
2845         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2846         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2847         _cflags_speed='-O2'
2848         _cflags_size='-Os'
2849         _flags_filter='filter_out -Wdisabled-optimization'
2850     elif $_cc -v 2>&1 | grep -q Open64; then
2851         _type=open64
2852         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2853         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2854         _cflags_speed='-O2'
2855         _cflags_size='-Os'
2856         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2857     elif $_cc -V 2>&1 | grep -q Portland; then
2858         _type=pgi
2859         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2860         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2861         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2862         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2863         _cflags_noopt="-O"
2864         _flags_filter=pgi_flags
2865     elif $_cc 2>&1 | grep -q Microsoft; then
2866         _type=msvc
2867         _ident=$($cc 2>&1 | head -n1)
2868         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2869         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2870         _cflags_speed="-O2"
2871         _cflags_size="-O1"
2872         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2873         if $_cc 2>&1 | grep -q Linker; then
2874             _ld_o='-out $@'
2875         else
2876             _ld_o='-Fe$@'
2877         fi
2878         _cc_o='-Fo $@'
2879         _cc_e='-P -Fi $@'
2880         _flags_filter=msvc_flags
2881         _ld_lib='lib%.a'
2882         _ld_path='-libpath:'
2883         _flags='-nologo'
2884         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2885         if [ $pfx = hostcc ]; then
2886             append _cflags -Dsnprintf=_snprintf
2887         fi
2888         disable stripping
2889     elif $_cc 2>&1 | grep -q Intel; then
2890         _type=icl
2891         _ident=$($cc 2>&1 | head -n1)
2892         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2893         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2894         _cflags_speed="-O2"
2895         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2896         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2897         if $_cc 2>&1 | grep -q Linker; then
2898             _ld_o='-out $@'
2899         else
2900             _ld_o='-Fe$@'
2901         fi
2902         _cc_o='-Fo $@'
2903         _cc_e='-P'
2904         _flags_filter=msvc_flags
2905         _ld_lib='lib%.a'
2906         _ld_path='-libpath:'
2907         # -Qdiag-error to make icl error when presented with certain unknown arguments
2908         _flags='-nologo -Qdiag-error:10157 -Qdiag-error:4044'
2909         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2910         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qstd=c99 -Qms0 -Qvec- -Qsimd- -GS'
2911         if [ $pfx = hostcc ]; then
2912             append _cflags -Dsnprintf=_snprintf
2913         fi
2914     fi
2915
2916     eval ${pfx}_type=\$_type
2917     eval ${pfx}_ident=\$_ident
2918 }
2919
2920 set_ccvars(){
2921     eval ${1}_C=\${_cc_c-\${${1}_C}}
2922     eval ${1}_E=\${_cc_e-\${${1}_E}}
2923     eval ${1}_O=\${_cc_o-\${${1}_O}}
2924
2925     if [ -n "$_depflags" ]; then
2926         eval ${1}_DEPFLAGS=\$_depflags
2927     else
2928         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2929         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2930         eval DEP${1}FLAGS=\$_flags
2931     fi
2932 }
2933
2934 probe_cc cc "$cc"
2935 cflags_filter=$_flags_filter
2936 cflags_speed=$_cflags_speed
2937 cflags_size=$_cflags_size
2938 cflags_noopt=$_cflags_noopt
2939 add_cflags $_flags $_cflags
2940 cc_ldflags=$_ldflags
2941 set_ccvars CC
2942
2943 probe_cc hostcc "$host_cc"
2944 host_cflags_filter=$_flags_filter
2945 add_host_cflags  $_flags $_cflags
2946 set_ccvars HOSTCC
2947
2948 test -n "$cc_type" && enable $cc_type ||
2949     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2950
2951 : ${as_default:=$cc}
2952 : ${dep_cc_default:=$cc}
2953 : ${ld_default:=$cc}
2954 : ${host_ld_default:=$host_cc}
2955 set_default ar as dep_cc ld host_ld
2956
2957 probe_cc as "$as"
2958 asflags_filter=$_flags_filter
2959 add_asflags $_flags $_cflags
2960 set_ccvars AS
2961
2962 probe_cc ld "$ld"
2963 ldflags_filter=$_flags_filter
2964 add_ldflags $_flags $_ldflags
2965 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2966 LD_O=${_ld_o-$LD_O}
2967 LD_LIB=${_ld_lib-$LD_LIB}
2968 LD_PATH=${_ld_path-$LD_PATH}
2969
2970 probe_cc hostld "$host_ld"
2971 host_ldflags_filter=$_flags_filter
2972 add_host_ldflags $_flags $_ldflags
2973 HOSTLD_O=${_ld_o-$HOSTLD_O}
2974
2975 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2976     probe_cc depcc "$dep_cc"
2977     CCDEP=${_DEPCMD:-$DEPCMD}
2978     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2979     DEPCCFLAGS=$_flags
2980 fi
2981
2982 if $ar 2>&1 | grep -q Microsoft; then
2983     arflags="-nologo"
2984     ar_o='-out:$@'
2985 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2986     arflags="rq"
2987     ar_o='$@'
2988 else
2989     arflags="rc"
2990     ar_o='$@'
2991 fi
2992
2993 add_cflags $extra_cflags
2994 add_cxxflags $extra_cxxflags
2995 add_asflags $extra_cflags
2996
2997 if test -n "$sysroot"; then
2998     case "$cc_type" in
2999         gcc|llvm_gcc|clang)
3000             add_cppflags --sysroot="$sysroot"
3001             add_ldflags --sysroot="$sysroot"
3002         ;;
3003         tms470)
3004             add_cppflags -I"$sysinclude"
3005             add_ldflags  --sysroot="$sysroot"
3006         ;;
3007     esac
3008 fi
3009
3010 if test "$cpu" = host; then
3011     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
3012
3013     case "$cc_type" in
3014         gcc|llvm_gcc)
3015             check_native(){
3016                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3017                 sed -n "/cc1.*$1=/{
3018                             s/.*$1=\\([^ ]*\\).*/\\1/
3019                             p
3020                             q
3021                         }" $TMPE
3022             }
3023             cpu=$(check_native -march || check_native -mcpu)
3024         ;;
3025     esac
3026
3027     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3028 fi
3029
3030 # Deal with common $arch aliases
3031 case "$arch" in
3032     aarch64|arm64)
3033         arch="aarch64"
3034     ;;
3035     arm*|iPad*)
3036         arch="arm"
3037     ;;
3038     mips*|IP*)
3039         arch="mips"
3040     ;;
3041     parisc*|hppa*)
3042         arch="parisc"
3043     ;;
3044     "Power Macintosh"|ppc*|powerpc*)
3045         arch="ppc"
3046     ;;
3047     s390|s390x)
3048         arch="s390"
3049     ;;
3050     sh4|sh)
3051         arch="sh4"
3052     ;;
3053     sun4u|sparc*)
3054         arch="sparc"
3055     ;;
3056     tilegx|tile-gx)
3057         arch="tilegx"
3058     ;;
3059     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3060         arch="x86"
3061     ;;
3062 esac
3063
3064 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3065 enable $arch
3066
3067 # Add processor-specific flags
3068 if enabled aarch64; then
3069
3070     case $cpu in
3071         armv*)
3072             cpuflags="-march=$cpu"
3073         ;;
3074         *)
3075             cpuflags="-mcpu=$cpu"
3076         ;;
3077     esac
3078
3079 elif enabled alpha; then
3080
3081     cpuflags="-mcpu=$cpu"
3082
3083 elif enabled arm; then
3084
3085     check_arm_arch() {
3086         check_cpp_condition stddef.h \
3087             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3088             $cpuflags
3089     }
3090
3091     probe_arm_arch() {
3092         if   check_arm_arch 4;        then echo armv4;
3093         elif check_arm_arch 4T;       then echo armv4t;
3094         elif check_arm_arch 5;        then echo armv5;
3095         elif check_arm_arch 5E;       then echo armv5e;
3096         elif check_arm_arch 5T;       then echo armv5t;
3097         elif check_arm_arch 5TE;      then echo armv5te;
3098         elif check_arm_arch 5TEJ;     then echo armv5te;
3099         elif check_arm_arch 6;        then echo armv6;
3100         elif check_arm_arch 6J;       then echo armv6j;
3101         elif check_arm_arch 6K;       then echo armv6k;
3102         elif check_arm_arch 6Z;       then echo armv6z;
3103         elif check_arm_arch 6ZK;      then echo armv6zk;
3104         elif check_arm_arch 6T2;      then echo armv6t2;
3105         elif check_arm_arch 7;        then echo armv7;
3106         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3107         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3108         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3109         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3110         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3111         fi
3112     }
3113
3114     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3115
3116     case $cpu in
3117         armv*)
3118             cpuflags="-march=$cpu"
3119             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3120         ;;
3121         *)
3122             cpuflags="-mcpu=$cpu"
3123             case $cpu in
3124                 cortex-a*)                               subarch=armv7a  ;;
3125                 cortex-r*)                               subarch=armv7r  ;;
3126                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3127                 arm11*)                                  subarch=armv6   ;;
3128                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3129                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3130                 *)                             subarch=$(probe_arm_arch) ;;
3131             esac
3132         ;;
3133     esac
3134
3135     case "$subarch" in
3136         armv5t*)    enable fast_clz                ;;
3137         armv[6-8]*) enable fast_clz fast_unaligned ;;
3138     esac
3139
3140 elif enabled avr32; then
3141
3142     case $cpu in
3143         ap7[02]0[0-2])
3144             subarch="avr32_ap"
3145             cpuflags="-mpart=$cpu"
3146         ;;
3147         ap)
3148             subarch="avr32_ap"
3149             cpuflags="-march=$cpu"
3150         ;;
3151         uc3[ab]*)
3152             subarch="avr32_uc"
3153             cpuflags="-mcpu=$cpu"
3154         ;;
3155         uc)
3156             subarch="avr32_uc"
3157             cpuflags="-march=$cpu"
3158         ;;
3159     esac
3160
3161 elif enabled bfin; then
3162
3163     cpuflags="-mcpu=$cpu"
3164
3165 elif enabled mips; then
3166
3167     cpuflags="-march=$cpu"
3168
3169     case $cpu in
3170         24kc)
3171             disable mipsfpu
3172             disable mipsdspr1
3173             disable mipsdspr2
3174         ;;
3175         24kf*)
3176             disable mipsdspr1
3177             disable mipsdspr2
3178         ;;
3179         24kec|34kc|1004kc)
3180             disable mipsfpu
3181             disable mipsdspr2
3182         ;;
3183         24kef*|34kf*|1004kf*)
3184             disable mipsdspr2
3185         ;;
3186         74kc)
3187             disable mipsfpu
3188         ;;
3189     esac
3190
3191 elif enabled ppc; then
3192
3193     case $(tolower $cpu) in
3194         601|ppc601|powerpc601)
3195             cpuflags="-mcpu=601"
3196             disable altivec
3197         ;;
3198         603*|ppc603*|powerpc603*)
3199             cpuflags="-mcpu=603"
3200             disable altivec
3201         ;;
3202         604*|ppc604*|powerpc604*)
3203             cpuflags="-mcpu=604"
3204             disable altivec
3205         ;;
3206         g3|75*|ppc75*|powerpc75*)
3207             cpuflags="-mcpu=750"
3208             disable altivec
3209         ;;
3210         g4|745*|ppc745*|powerpc745*)
3211             cpuflags="-mcpu=7450"
3212         ;;
3213         74*|ppc74*|powerpc74*)
3214             cpuflags="-mcpu=7400"
3215         ;;
3216         g5|970|ppc970|powerpc970)
3217             cpuflags="-mcpu=970"
3218         ;;
3219         power[3-7]*)
3220             cpuflags="-mcpu=$cpu"
3221         ;;
3222         cell)
3223             cpuflags="-mcpu=cell"
3224             enable ldbrx
3225         ;;
3226         e500mc)
3227             cpuflags="-mcpu=e500mc"
3228             disable altivec
3229         ;;
3230         e500v2)
3231             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3232             disable altivec
3233         ;;
3234         e500)
3235             cpuflags="-mcpu=8540 -mhard-float"
3236             disable altivec
3237         ;;
3238     esac
3239
3240 elif enabled sparc; then
3241
3242     case $cpu in
3243         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3244             cpuflags="-mcpu=$cpu"
3245             disable vis
3246         ;;
3247         ultrasparc*|niagara[234])
3248             cpuflags="-mcpu=$cpu"
3249         ;;
3250     esac
3251
3252 elif enabled x86; then
3253
3254     case $cpu in
3255         i[345]86|pentium)
3256             cpuflags="-march=$cpu"
3257             disable mmx
3258         ;;
3259         # targets that do NOT support nopl and conditional mov (cmov)
3260         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3261             cpuflags="-march=$cpu"
3262             disable i686
3263         ;;
3264         # targets that do support nopl and conditional mov (cmov)
3265         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3266             cpuflags="-march=$cpu"
3267             enable i686
3268             enable fast_cmov
3269         ;;
3270         # targets that do support conditional mov but on which it's slow
3271         pentium4|pentium4m|prescott|nocona)
3272             cpuflags="-march=$cpu"
3273             enable i686
3274             disable fast_cmov
3275         ;;
3276     esac
3277
3278 fi
3279
3280 if [ "$cpu" != generic ]; then
3281     add_cflags  $cpuflags
3282     add_asflags $cpuflags
3283 fi
3284
3285 # compiler sanity check
3286 check_exec <<EOF
3287 int main(void){ return 0; }
3288 EOF
3289 if test "$?" != 0; then
3290     echo "$cc is unable to create an executable file."
3291     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3292         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3293         echo "Only do this if you know what cross compiling means."
3294     fi
3295     die "C compiler test failed."
3296 fi
3297
3298 add_cppflags -D_ISOC99_SOURCE
3299 add_cxxflags -D__STDC_CONSTANT_MACROS
3300 check_cflags -std=c99
3301 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3302 #include <stdlib.h>
3303 EOF
3304 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3305 #include <stdlib.h>
3306 EOF
3307
3308 check_host_cflags -std=c99
3309 check_host_cflags -Wall
3310
3311 check_64bit(){
3312     arch32=$1
3313     arch64=$2
3314     expr=$3
3315     check_code cc "" "int test[2*($expr) - 1]" &&
3316         subarch=$arch64 || subarch=$arch32
3317 }
3318
3319 case "$arch" in
3320     aarch64|alpha|ia64)
3321         spic=$shared
3322     ;;
3323     mips)
3324         check_64bit mips mips64 '_MIPS_SIM > 1'
3325         spic=$shared
3326     ;;
3327     parisc)
3328         check_64bit parisc parisc64 'sizeof(void *) > 4'
3329         spic=$shared
3330     ;;
3331     ppc)
3332         check_64bit ppc ppc64 'sizeof(void *) > 4'
3333         spic=$shared
3334     ;;
3335     sparc)
3336         check_64bit sparc sparc64 'sizeof(void *) > 4'
3337         spic=$shared
3338     ;;
3339     x86)
3340         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3341         if test "$subarch" = "x86_64"; then
3342             spic=$shared
3343         fi
3344     ;;
3345     ppc)
3346         check_cc <<EOF && subarch="ppc64"
3347         int test[(int)sizeof(char*) - 7];
3348 EOF
3349     ;;
3350 esac
3351
3352 enable $subarch
3353 enabled spic && enable_weak pic
3354
3355 # OS specific
3356 case $target_os in
3357     haiku)
3358         prefix_default="/boot/common"
3359         network_extralibs="-lnetwork"
3360         host_libs=
3361         ;;
3362     sunos)
3363         FFSERVERLDFLAGS=""
3364         SHFLAGS='-shared -Wl,-h,$$(@F)'
3365         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3366         network_extralibs="-lsocket -lnsl"
3367         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3368         # When using suncc to build, the Solaris linker will mark
3369         # an executable with each instruction set encountered by
3370         # the Solaris assembler.  As our libraries contain their own
3371         # guards for processor-specific code, instead suppress
3372         # generation of the HWCAPS ELF section on Solaris x86 only.
3373         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3374         nm_default='nm -P -g'
3375         ;;
3376     netbsd)
3377         disable symver
3378         oss_indev_extralibs="-lossaudio"
3379         oss_outdev_extralibs="-lossaudio"
3380         enabled gcc || check_ldflags -Wl,-zmuldefs
3381         ;;
3382     openbsd|bitrig)
3383         disable symver
3384         SHFLAGS='-shared'
3385         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3386         SLIB_INSTALL_LINKS=
3387         oss_indev_extralibs="-lossaudio"
3388         oss_outdev_extralibs="-lossaudio"
3389         ;;
3390     dragonfly)
3391         disable symver
3392         ;;
3393     freebsd)
3394         ;;
3395     bsd/os)
3396         add_extralibs -lpoll -lgnugetopt
3397         strip="strip -d"
3398         ;;
3399     darwin)
3400         gas="gas-preprocessor.pl $cc"
3401         enabled ppc && add_asflags -force_cpusubtype_ALL
3402         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3403         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3404         strip="${strip} -x"
3405         add_ldflags -Wl,-dynamic,-search_paths_first
3406         SLIBSUF=".dylib"
3407         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3408         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3409         FFSERVERLDFLAGS=-Wl,-bind_at_load
3410         objformat="macho"
3411         enabled x86_64 && objformat="macho64"
3412         enabled_any pic shared ||
3413             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3414         ;;
3415     mingw32*)
3416         if test $target_os = "mingw32ce"; then
3417             disable network
3418         else
3419             target_os=mingw32
3420         fi
3421         LIBTARGET=i386
3422         if enabled x86_64; then
3423             LIBTARGET="i386:x86-64"
3424         elif enabled arm; then
3425             LIBTARGET=arm-wince
3426         fi
3427         check_ldflags -Wl,--nxcompat
3428         check_ldflags -Wl,--dynamicbase
3429         shlibdir_default="$bindir_default"
3430         SLIBPREF=""
3431         SLIBSUF=".dll"
3432         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3433         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3434         dlltool="${cross_prefix}dlltool"
3435         if check_cmd lib.exe -list; then
3436             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3437             if enabled x86_64; then
3438                 LIBTARGET=x64
3439             fi
3440         elif check_cmd $dlltool --version; then
3441             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3442         fi
3443         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3444         SLIB_INSTALL_LINKS=
3445         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3446         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3447         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3448         objformat="win32"
3449         ranlib=:
3450         enable dos_paths
3451         disable pic
3452         ;;
3453     win32|win64)
3454         if enabled shared; then
3455             # Link to the import library instead of the normal static library
3456             # for shared libs.
3457             LD_LIB='%.lib'
3458             # Cannot build shared and static libraries at the same time with
3459             # MSVC.
3460             disable static
3461         fi
3462         shlibdir_default="$bindir_default"
3463         SLIBPREF=""
3464         SLIBSUF=".dll"
3465         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3466         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3467         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3468         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3469         SLIB_INSTALL_LINKS=
3470         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3471         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3472         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3473         objformat="win32"
3474         ranlib=:
3475         enable dos_paths
3476         disable pic
3477         ;;
3478     cygwin*)
3479         target_os=cygwin
3480         shlibdir_default="$bindir_default"
3481         SLIBPREF="cyg"
3482         SLIBSUF=".dll"
3483         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3484         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3485         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3486         SLIB_INSTALL_LINKS=
3487         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3488         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3489         objformat="win32"
3490         enable dos_paths
3491         disable pic
3492         ;;
3493     *-dos|freedos|opendos)
3494         network_extralibs="-lsocket"
3495         objformat="coff"
3496         enable dos_paths
3497         add_cppflags -U__STRICT_ANSI__
3498         ;;
3499     linux)
3500         enable dv1394
3501         ;;
3502     irix*)
3503         target_os=irix
3504         ranlib="echo ignoring ranlib"
3505         ;;
3506     os/2*)
3507         strip="lxlite -CS"
3508         ln_s="cp -f"
3509         objformat="aout"
3510         add_cppflags -D_GNU_SOURCE
3511         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3512         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3513         FFSERVERLDFLAGS=""
3514         LIBSUF="_s.a"
3515         SLIBPREF=""
3516         SLIBSUF=".dll"
3517         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3518         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3519         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3520             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3521             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3522             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3523             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3524             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3525         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3526             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3527         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3528         enable dos_paths
3529         enable_weak os2threads
3530         ;;
3531     gnu/kfreebsd)
3532         add_cppflags -D_BSD_SOURCE
3533         ;;
3534     gnu)
3535         ;;
3536     qnx)
3537         add_cppflags -D_QNX_SOURCE
3538         network_extralibs="-lsocket"
3539         ;;
3540     symbian)
3541         SLIBSUF=".dll"
3542         enable dos_paths
3543         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3544         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3545         add_ldflags -Wl,--target1-abs,--no-undefined \
3546                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3547                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3548         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3549                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3550                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3551         ;;
3552     osf1)
3553         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3554         FFSERVERLDFLAGS=
3555         ;;
3556     minix)
3557         ;;
3558     plan9)
3559         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3560                      -D_REENTRANT_SOURCE        \
3561                      -D_RESEARCH_SOURCE         \
3562                      -DFD_SETSIZE=96            \
3563                      -DHAVE_SOCK_OPTS
3564         add_compat strtod.o strtod=avpriv_strtod
3565         network_extralibs='-lbsd'
3566         exeobjs=compat/plan9/main.o
3567         disable ffserver
3568         cp_f='cp'
3569         ;;
3570     none)
3571         ;;
3572     *)
3573         die "Unknown OS '$target_os'."
3574         ;;
3575 esac
3576
3577 # determine libc flavour
3578
3579 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3580 if check_cpp_condition features.h "defined __UCLIBC__"; then
3581     libc_type=uclibc
3582     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3583 elif check_cpp_condition features.h "defined __GLIBC__"; then
3584     libc_type=glibc
3585     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3586 # MinGW headers can be installed on Cygwin, so check for newlib first.
3587 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3588     libc_type=newlib
3589     add_cppflags -U__STRICT_ANSI__
3590 elif check_header _mingw.h; then
3591     libc_type=mingw
3592     check_cpp_condition _mingw.h \
3593         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3594             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3595         die "ERROR: MinGW runtime version must be >= 3.15."
3596     add_cppflags -U__STRICT_ANSI__
3597     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3598             __MINGW64_VERSION_MAJOR < 3"; then
3599         add_compat msvcrt/snprintf.o
3600         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3601     fi
3602 elif check_func_headers stdlib.h _get_doserrno; then
3603     libc_type=msvcrt
3604     add_compat strtod.o strtod=avpriv_strtod
3605     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3606                                  _snprintf=avpriv_snprintf  \
3607                                  vsnprintf=avpriv_vsnprintf
3608     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3609     # 0x601 by default unless something else is set by the user.
3610     # This can easily lead to us detecting functions only present
3611     # in such new versions and producing binaries requiring windows 7.0.
3612     # Therefore explicitly set the default to XP unless the user has
3613     # set something else on the command line.
3614     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3615 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3616     libc_type=klibc
3617 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3618     libc_type=bionic
3619     add_compat strtod.o strtod=avpriv_strtod
3620 fi
3621
3622 test -n "$libc_type" && enable $libc_type
3623
3624 # hacks for compiler/libc/os combinations
3625
3626 if enabled_all tms470 glibc; then
3627     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3628     add_cppflags -D__USER_LABEL_PREFIX__=
3629     add_cppflags -D__builtin_memset=memset
3630     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3631     add_cflags   -pds=48    # incompatible redefinition of macro
3632 fi
3633
3634 if enabled_all ccc glibc; then
3635     add_ldflags -Wl,-z,now  # calls to libots crash without this
3636 fi
3637
3638 esc(){
3639     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3640 }
3641
3642 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3643
3644 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3645
3646 set_default $PATHS_LIST
3647 set_default nm
3648
3649 # we need to build at least one lib type
3650 if ! enabled_any static shared; then
3651     cat <<EOF
3652 At least one library type must be built.
3653 Specify --enable-static to build the static libraries or --enable-shared to
3654 build the shared libraries as well. To only build the shared libraries specify
3655 --disable-static in addition to --enable-shared.
3656 EOF
3657     exit 1;
3658 fi
3659
3660 die_license_disabled() {
3661     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3662 }
3663
3664 die_license_disabled_gpl() {
3665     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3666 }
3667
3668 die_license_disabled gpl libcdio
3669 die_license_disabled gpl libutvideo
3670 die_license_disabled gpl libvidstab
3671 die_license_disabled gpl libx264
3672 die_license_disabled gpl libxavs
3673 die_license_disabled gpl libxvid
3674 die_license_disabled gpl x11grab
3675
3676 die_license_disabled nonfree libaacplus
3677 die_license_disabled nonfree libfaac
3678 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3679 enabled gpl && die_license_disabled_gpl nonfree openssl
3680
3681 die_license_disabled version3 libopencore_amrnb
3682 die_license_disabled version3 libopencore_amrwb
3683 die_license_disabled version3 libvo_aacenc
3684 die_license_disabled version3 libvo_amrwbenc
3685
3686 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3687
3688 disabled optimizations || check_cflags -fomit-frame-pointer
3689
3690 enable_weak_pic() {
3691     disabled pic && return
3692     enable pic
3693     add_cppflags -DPIC
3694     add_cflags   -fPIC
3695     add_asflags  -fPIC
3696 }
3697
3698 enabled pic && enable_weak_pic
3699
3700 check_cc <<EOF || die "Symbol mangling check failed."
3701 int ff_extern;
3702 EOF
3703 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3704 extern_prefix=${sym%%ff_extern*}
3705
3706 check_cc <<EOF && enable_weak inline_asm
3707 void foo(void) { __asm__ volatile ("" ::); }
3708 EOF
3709
3710 _restrict=
3711 for restrict_keyword in restrict __restrict__ __restrict; do
3712     check_cc <<EOF && _restrict=$restrict_keyword && break
3713 void foo(char * $restrict_keyword p);
3714 EOF
3715 done
3716
3717 check_cc <<EOF && enable attribute_packed
3718 struct { int x; } __attribute__((packed)) x;
3719 EOF
3720
3721 check_cc <<EOF && enable attribute_may_alias
3722 union { int x; } __attribute__((may_alias)) x;
3723 EOF
3724
3725 check_cc <<EOF || die "endian test failed"
3726 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3727 EOF
3728 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3729
3730 if enabled alpha; then
3731
3732     check_cflags -mieee
3733
3734 elif enabled arm; then
3735
3736     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3737 float func(float a, float b){ return a+b; }
3738 EOF
3739
3740     enabled thumb && check_cflags -mthumb || check_cflags -marm
3741     nogas=die
3742
3743     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3744         enable vfp_args
3745     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3746         case "${cross_prefix:-$cc}" in
3747             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3748             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3749 __asm__ (".eabi_attribute 28, 1");
3750 int main(void) { return 0; }
3751 EOF
3752         esac
3753         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3754     fi
3755
3756     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3757     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3758     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3759     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3760     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3761     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3762
3763     [ $target_os = linux ] ||
3764         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3765             $ARCH_EXT_LIST_ARM
3766
3767     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3768     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3769
3770     enabled_all armv6t2 shared !pic && enable_weak_pic
3771
3772 elif enabled mips; then
3773
3774     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3775     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3776      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3777     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3778      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3779     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3780      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3781     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3782      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3783
3784 elif enabled parisc; then
3785
3786     if enabled gcc; then
3787         case $($cc -dumpversion) in
3788             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3789         esac
3790     fi
3791
3792 elif enabled ppc; then
3793
3794     enable local_aligned_8 local_aligned_16
3795
3796     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3797     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3798     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3799     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3800
3801     # AltiVec flags: The FSF version of GCC differs from the Apple version
3802     if enabled altivec; then
3803         nogas=warn
3804         check_cflags -maltivec -mabi=altivec &&
3805         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3806         check_cflags -faltivec
3807
3808         # check if our compiler supports Motorola AltiVec C API
3809         check_cc <<EOF || disable altivec
3810 $inc_altivec_h
3811 int main(void) {
3812     vector signed int v1 = (vector signed int) { 0 };
3813     vector signed int v2 = (vector signed int) { 1 };
3814     v1 = vec_add(v1, v2);
3815     return 0;
3816 }
3817 EOF
3818
3819         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3820     fi
3821
3822 elif enabled sparc; then
3823
3824     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3825
3826 elif enabled x86; then
3827
3828     check_builtin rdtsc    intrin.h   "__rdtsc()"
3829     check_builtin mm_empty mmintrin.h "_mm_empty()"
3830
3831     enable local_aligned_8 local_aligned_16
3832
3833     # check whether EBP is available on x86
3834     # As 'i' is stored on the stack, this program will crash
3835     # if the base pointer is used to access it because the
3836     # base pointer is cleared in the inline assembly code.
3837     check_exec_crash <<EOF && enable ebp_available
3838 volatile int i=0;
3839 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3840 return i;
3841 EOF
3842
3843     # check whether EBX is available on x86
3844     check_inline_asm ebx_available '""::"b"(0)' &&
3845         check_inline_asm ebx_available '"":::"%ebx"'
3846
3847     # check whether xmm clobbers are supported
3848     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3849
3850     # check whether binutils is new enough to compile SSSE3/MMXEXT
3851     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3852     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3853
3854     if ! disabled_any asm mmx yasm; then
3855         if check_cmd $yasmexe --version; then
3856             enabled x86_64 && yasm_extra="-m amd64"
3857             yasm_debug="-g dwarf2"
3858         elif check_cmd nasm -v; then
3859             yasmexe=nasm
3860             yasm_debug="-g -F dwarf"
3861             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3862         fi
3863
3864         YASMFLAGS="-f $objformat $yasm_extra"
3865         enabled pic               && append YASMFLAGS "-DPIC"
3866         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3867         case "$objformat" in
3868             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3869         esac
3870
3871         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3872             die "yasm not found, use --disable-yasm for a crippled build"
3873         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3874         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3875         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3876     fi
3877
3878     case "$cpu" in
3879         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3880             disable fast_clz
3881         ;;
3882     esac
3883
3884 fi
3885
3886 if enabled asm; then
3887     as=${gas:=$as}
3888     check_as <<EOF && enable gnu_as || \
3889         $nogas "GNU assembler not found, install gas-preprocessor"
3890 .macro m n
3891 \n: .int 0
3892 .endm
3893 m x
3894 EOF
3895 fi
3896
3897 check_ldflags -Wl,--as-needed
3898
3899 if check_func dlopen; then
3900     ldl=
3901 elif check_func dlopen -ldl; then
3902     ldl=-ldl
3903 fi
3904
3905 if ! disabled network; then
3906     check_type "sys/types.h sys/socket.h" socklen_t
3907     check_type netdb.h "struct addrinfo"
3908     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3909     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3910     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3911     check_type netinet/in.h "struct sockaddr_in6"
3912     check_type poll.h "struct pollfd"
3913     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3914     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3915     check_type netinet/sctp.h "struct sctp_event_subscribe"
3916     check_func getaddrinfo $network_extralibs
3917     check_func getservbyport $network_extralibs
3918     # Prefer arpa/inet.h over winsock2
3919     if check_header arpa/inet.h ; then
3920         check_func closesocket
3921     elif check_header winsock2.h ; then
3922         check_func_headers winsock2.h closesocket -lws2 &&
3923             network_extralibs="-lws2" ||
3924         { check_func_headers winsock2.h closesocket -lws2_32 &&
3925             network_extralibs="-lws2_32"; }
3926         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3927         check_type ws2tcpip.h socklen_t
3928         check_type ws2tcpip.h "struct addrinfo"
3929         check_type ws2tcpip.h "struct group_source_req"
3930         check_type ws2tcpip.h "struct ip_mreq_source"
3931         check_type ws2tcpip.h "struct ipv6_mreq"
3932         check_type winsock2.h "struct pollfd"
3933         check_type ws2tcpip.h "struct sockaddr_in6"
3934         check_type ws2tcpip.h "struct sockaddr_storage"
3935         check_struct winsock2.h "struct sockaddr" sa_len
3936     else
3937         disable network
3938     fi
3939 fi
3940
3941 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3942 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3943
3944 check_func  access
3945 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3946 check_func  fcntl
3947 check_func  fork
3948 check_func_headers stdlib.h getenv
3949 check_func  gethrtime
3950 check_func  getopt
3951 check_func  getrusage
3952 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3953 check_func  gettimeofday
3954 check_func  inet_aton $network_extralibs
3955 check_func  isatty
3956 check_func  localtime_r
3957 check_func  ${malloc_prefix}memalign            && enable memalign
3958 check_func  mkstemp
3959 check_func  mmap
3960 check_func  mprotect
3961 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3962 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3963 check_func  setrlimit
3964 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
3965 check_func  strerror_r
3966 check_func  sched_getaffinity
3967 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3968 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3969 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3970 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3971 check_func  sysconf
3972 check_func  sysctl
3973 check_func  usleep
3974 check_func_headers conio.h kbhit
3975 check_func_headers windows.h PeekNamedPipe
3976 check_func_headers io.h setmode
3977 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3978 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3979 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3980 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3981 check_func_headers windows.h GetProcessAffinityMask
3982 check_func_headers windows.h GetProcessTimes
3983 check_func_headers windows.h GetSystemTimeAsFileTime
3984 check_func_headers windows.h MapViewOfFile
3985 check_func_headers windows.h SetConsoleTextAttribute
3986 check_func_headers windows.h Sleep
3987 check_func_headers windows.h VirtualAlloc
3988 check_func_headers glob.h glob
3989 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
3990
3991 check_header cl/cl.h
3992 check_header direct.h
3993 check_header dlfcn.h
3994 check_header dxva.h
3995 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3996 check_header io.h
3997 check_header libcrystalhd/libcrystalhd_if.h
3998 check_header malloc.h
3999 check_header poll.h
4000 check_header sys/mman.h
4001 check_header sys/param.h
4002 check_header sys/resource.h
4003 check_header sys/select.h
4004 check_header sys/time.h
4005 check_header termios.h
4006 check_header unistd.h
4007 check_header vdpau/vdpau.h
4008 check_header vdpau/vdpau_x11.h
4009 check_header VideoDecodeAcceleration/VDADecoder.h
4010 check_header windows.h
4011 check_header X11/extensions/XvMClib.h
4012 check_header asm/types.h
4013
4014 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4015 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4016
4017 if ! disabled w32threads && ! enabled pthreads; then
4018     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4019 fi
4020
4021 # check for some common methods of building with pthread support
4022 # do this before the optional library checks as some of them require pthreads
4023 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4024     enable pthreads
4025     if check_func pthread_create; then
4026         :
4027     elif check_func pthread_create -pthread; then
4028         add_cflags -pthread
4029         add_extralibs -pthread
4030     elif check_func pthread_create -pthreads; then
4031         add_cflags -pthreads
4032         add_extralibs -pthreads
4033     elif check_func pthread_create -lpthreadGC2; then
4034         add_extralibs -lpthreadGC2
4035     elif ! check_lib pthread.h pthread_create -lpthread; then
4036         disable pthreads
4037     fi
4038 fi
4039
4040 for thread in $THREADS_LIST; do
4041     if enabled $thread; then
4042         test -n "$thread_type" &&
4043             die "ERROR: Only one thread type must be selected." ||
4044             thread_type="$thread"
4045     fi
4046 done
4047
4048 if enabled pthreads; then
4049   check_func pthread_cancel
4050 fi
4051
4052 enabled sync_val_compare_and_swap && enable atomics_gcc
4053 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
4054 enabled MemoryBarrier && enable atomics_win32
4055
4056 check_lib math.h sin -lm && LIBM="-lm"
4057 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4058
4059 atan2f_args=2
4060 ldexpf_args=2
4061 powf_args=2
4062
4063 for func in $MATH_FUNCS; do
4064     eval check_mathfunc $func \${${func}_args:-1}
4065 done
4066
4067 # these are off by default, so fail if requested and not available
4068 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
4069                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4070                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4071 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4072 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4073 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4074 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4075 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4076 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4077 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4078 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4079                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4080                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4081 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4082 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4083 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4084 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4085 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4086 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4087 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4088                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4089                         done || die "ERROR: libgsm not found"; }
4090 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4091 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4092 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4093 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4094 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4095 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4096 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4097 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4098                          check_lib openjpeg.h opj_version -lopenjpeg ||
4099                          die "ERROR: libopenjpeg not found"; }
4100 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4101 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4102 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4103 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4104 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4105 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4106 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4107 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4108 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4109     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4110     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4111 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4112 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4113                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4114                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4115 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4116 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4117 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4118 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4119 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4120 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4121 enabled libvpx     && {
4122     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4123                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4124     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4125                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4126     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4127     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4128 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4129                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4130                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4131 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4132 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4133 enabled libzmq     && require_pkg_config libzmq zmq.h zmq_ctx_new
4134 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4135                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4136                         die "ERROR: openal not found"; } &&
4137                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4138                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4139 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4140                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4141                         die "ERROR: opencl not found"; } &&
4142                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4143                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4144                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4145 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4146                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4147                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4148                         die "ERROR: openssl not found"; }
4149
4150 if enabled gnutls; then
4151     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4152     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4153 fi
4154
4155 # libdc1394 check
4156 if enabled libdc1394; then
4157     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4158         enable libdc1394_2; } ||
4159     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4160         enable libdc1394_1; } ||
4161     die "ERROR: No version of libdc1394 found "
4162 fi
4163
4164 SDL_CONFIG="${cross_prefix}sdl-config"
4165 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4166     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4167     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4168     enable sdl
4169 else
4170   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4171     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4172     sdl_libs=$("${SDL_CONFIG}" --libs)
4173     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4174     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4175     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4176     enable sdl
4177   fi
4178 fi
4179 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4180
4181 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4182 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4183 perl --version > /dev/null 2>&1 && enable perl || disable perl
4184 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4185 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4186
4187 check_header linux/fb.h
4188 check_header linux/videodev.h
4189 check_header linux/videodev2.h
4190 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4191
4192 check_header sys/videoio.h
4193
4194 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4195 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4196 # w32api 3.12 had it defined wrong
4197 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4198
4199 check_type "dshow.h" IBaseFilter
4200
4201 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4202 { check_header dev/bktr/ioctl_meteor.h &&
4203   check_header dev/bktr/ioctl_bt848.h; } ||
4204 { check_header machine/ioctl_meteor.h &&
4205   check_header machine/ioctl_bt848.h; } ||
4206 { check_header dev/video/meteor/ioctl_meteor.h &&
4207   check_header dev/video/bktr/ioctl_bt848.h; } ||
4208 check_header dev/ic/bt8xx.h
4209
4210 check_header sndio.h
4211 if check_struct sys/soundcard.h audio_buf_info bytes; then
4212     enable_safe sys/soundcard.h
4213 else
4214     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4215     #include <sys/soundcard.h>
4216     audio_buf_info abc;
4217 EOF
4218 fi
4219 check_header soundcard.h
4220
4221 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4222
4223 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4224     check_func jack_port_get_latency_range -ljack
4225
4226 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4227
4228 if enabled libcdio; then
4229     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4230 fi
4231
4232 enabled x11grab                                           &&
4233 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4234 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4235 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4236
4237 enabled vaapi &&
4238     check_lib va/va.h vaInitialize -lva ||
4239     disable vaapi
4240
4241 enabled vdpau &&
4242     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4243     disable vdpau
4244
4245 # Funny iconv installations are not unusual, so check it after all flags have been set
4246 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4247
4248 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4249
4250 # add some useful compiler flags if supported
4251 check_cflags -Wdeclaration-after-statement
4252 check_cflags -Wall
4253 check_cflags -Wno-parentheses
4254 check_cflags -Wno-switch
4255 check_cflags -Wno-format-zero-length
4256 check_cflags -Wdisabled-optimization
4257 check_cflags -Wpointer-arith
4258 check_cflags -Wredundant-decls
4259 check_cflags -Wno-pointer-sign
4260 check_cflags -Wwrite-strings
4261 check_cflags -Wtype-limits
4262 check_cflags -Wundef
4263 check_cflags -Wmissing-prototypes
4264 check_cflags -Wno-pointer-to-int-cast
4265 check_cflags -Wstrict-prototypes
4266 enabled extra_warnings && check_cflags -Winline
4267
4268 # add some linker flags
4269 check_ldflags -Wl,--warn-common
4270 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4271 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4272
4273 enabled xmm_clobber_test &&
4274     check_ldflags -Wl,--wrap,avcodec_open2              \
4275                   -Wl,--wrap,avcodec_decode_audio4      \
4276                   -Wl,--wrap,avcodec_decode_video2      \
4277                   -Wl,--wrap,avcodec_decode_subtitle2   \
4278                   -Wl,--wrap,avcodec_encode_audio2      \
4279                   -Wl,--wrap,avcodec_encode_video       \
4280                   -Wl,--wrap,avcodec_encode_subtitle    \
4281                   -Wl,--wrap,sws_scale ||
4282     disable xmm_clobber_test
4283
4284 echo "X{};" > $TMPV
4285 if test_ldflags -Wl,--version-script,$TMPV; then
4286     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4287     check_cc <<EOF && enable symver_asm_label
4288 void ff_foo(void) __asm__ ("av_foo@VERSION");
4289 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4290 EOF
4291     check_cc <<EOF && enable symver_gnu_asm
4292 __asm__(".symver ff_foo,av_foo@VERSION");
4293 void ff_foo(void) {}
4294 EOF
4295 fi
4296
4297 if [ -z "$optflags" ]; then
4298     if enabled small; then
4299         optflags=$cflags_size
4300     elif enabled optimizations; then
4301         optflags=$cflags_speed
4302     else
4303         optflags=$cflags_noopt
4304     fi
4305 fi
4306
4307 check_optflags(){
4308     check_cflags "$@"
4309     enabled lto && check_ldflags "$@"
4310 }
4311
4312
4313 if enabled lto; then
4314     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4315     check_cflags  -flto
4316     check_ldflags -flto $cpuflags
4317 fi
4318
4319 check_optflags $optflags
4320 check_optflags -fno-math-errno
4321 check_optflags -fno-signed-zeros
4322
4323 enabled ftrapv && check_cflags -ftrapv
4324
4325 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4326 int x;
4327 EOF
4328
4329
4330 if enabled icc; then
4331     # Just warnings, no remarks
4332     check_cflags -w1
4333     # -wd: Disable following warnings
4334     # 144, 167, 556: -Wno-pointer-sign
4335     # 188: enumerated type mixed with another type
4336     # 1292: attribute "foo" ignored
4337     # 1419: external declaration in primary source file
4338     # 10006: ignoring unknown option -fno-signed-zeros
4339     # 10148: ignoring unknown option -Wno-parentheses
4340     # 10156: ignoring option '-W'; no argument required
4341     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4342     # 11030: Warning unknown option --as-needed
4343     # 10156: ignoring option '-export'; no argument required
4344     check_ldflags -wd10156,11030
4345     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4346     enable ebp_available
4347     if enabled x86_32; then
4348         icc_version=$($cc -dumpversion)
4349         test ${icc_version%%.*} -ge 11 &&
4350             check_cflags -falign-stack=maintain-16-byte ||
4351             disable aligned_stack
4352     fi
4353 elif enabled ccc; then
4354     # disable some annoying warnings
4355     add_cflags -msg_disable bitnotint
4356     add_cflags -msg_disable mixfuncvoid
4357     add_cflags -msg_disable nonstandcast
4358     add_cflags -msg_disable unsupieee
4359 elif enabled gcc; then
4360     check_optflags -fno-tree-vectorize
4361     check_cflags -Werror=implicit-function-declaration
4362     check_cflags -Werror=missing-prototypes
4363     check_cflags -Werror=return-type
4364     check_cflags -Werror=vla
4365 elif enabled llvm_gcc; then
4366     check_cflags -mllvm -stack-alignment=16
4367 elif enabled clang; then
4368     check_cflags -mllvm -stack-alignment=16
4369     check_cflags -Qunused-arguments
4370     check_cflags -Werror=implicit-function-declaration
4371     check_cflags -Werror=missing-prototypes
4372     check_cflags -Werror=return-type
4373 elif enabled armcc; then
4374     # 2523: use of inline assembler is deprecated
4375     add_cflags -W${armcc_opt},--diag_suppress=2523
4376     add_cflags -W${armcc_opt},--diag_suppress=1207
4377     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4378     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4379     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4380     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4381 elif enabled tms470; then
4382     add_cflags -pds=824 -pds=837
4383 elif enabled pathscale; then
4384     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4385 elif enabled msvc; then
4386     enabled x86_32 && disable aligned_stack
4387 elif enabled icl; then
4388     enabled x86_32 && disable aligned_stack
4389     check_cflags -W1 # Just warnings, no remark spam
4390     # basically -fstrict-aliasing for icl that doesn't work (correctly) on 13.x+
4391     check_cpp_condition "windows.h" "__ICL < 1300" && add_cflags -Qansi-alias
4392     # icl will pass the inline asm tests but inline asm is currently not supported (build will fail)
4393     disable inline_asm
4394 fi
4395
4396 case $target_os in
4397     osf1)
4398         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4399     ;;
4400     plan9)
4401         add_cppflags -Dmain=plan9_main
4402     ;;
4403 esac
4404
4405 enable frame_thread_encoder
4406 enabled_any $THREADS_LIST      && enable threads
4407 enabled_any $ATOMICS_LIST      && enable atomics_native
4408
4409 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4410
4411 check_deps $CONFIG_LIST       \
4412            $CONFIG_EXTRA      \
4413            $HAVE_LIST         \
4414            $ALL_COMPONENTS    \
4415
4416
4417 if test $target_os = "haiku"; then
4418     disable memalign
4419     disable posix_memalign
4420 fi
4421
4422 ! enabled_any memalign posix_memalign aligned_malloc &&
4423     enabled_any $need_memalign && enable memalign_hack
4424
4425 # add_dep lib dep
4426 # -> enable ${lib}_deps_${dep}
4427 # -> add $dep to ${lib}_deps only once
4428 add_dep() {
4429     lib=$1
4430     dep=$2
4431     enabled "${lib}_deps_${dep}" && return 0
4432     enable  "${lib}_deps_${dep}"
4433     prepend "${lib}_deps" $dep
4434 }
4435
4436 # merge deps lib components
4437 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4438 merge_deps() {
4439     lib=$1
4440     shift
4441     for comp in $*; do
4442         enabled $comp || continue
4443         eval "dep=\"\$${comp}_deps\""
4444         for d in $dep; do
4445             add_dep $lib $d
4446         done
4447     done
4448 }
4449
4450 merge_deps libavfilter $FILTER_LIST
4451
4452 echo "install prefix            $prefix"
4453 echo "source path               $source_path"
4454 echo "C compiler                $cc"
4455 echo "ARCH                      $arch ($cpu)"
4456 if test "$build_suffix" != ""; then
4457     echo "build suffix              $build_suffix"
4458 fi
4459 if test "$progs_suffix" != ""; then
4460     echo "progs suffix              $progs_suffix"
4461 fi
4462 if test "$extra_version" != ""; then
4463     echo "version string suffix     $extra_version"
4464 fi
4465 echo "big-endian                ${bigendian-no}"
4466 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4467 if enabled x86; then
4468     echo "${yasmexe}                      ${yasm-no}"
4469     echo "MMX enabled               ${mmx-no}"
4470     echo "MMXEXT enabled            ${mmxext-no}"
4471     echo "3DNow! enabled            ${amd3dnow-no}"
4472     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4473     echo "SSE enabled               ${sse-no}"
4474     echo "SSSE3 enabled             ${ssse3-no}"
4475     echo "AVX enabled               ${avx-no}"
4476     echo "FMA4 enabled              ${fma4-no}"
4477     echo "i686 features enabled     ${i686-no}"
4478     echo "CMOV is fast              ${fast_cmov-no}"
4479     echo "EBX available             ${ebx_available-no}"
4480     echo "EBP available             ${ebp_available-no}"
4481 fi
4482 if enabled arm; then
4483     echo "ARMv5TE enabled           ${armv5te-no}"
4484     echo "ARMv6 enabled             ${armv6-no}"
4485     echo "ARMv6T2 enabled           ${armv6t2-no}"
4486     echo "VFP enabled               ${vfp-no}"
4487     echo "NEON enabled              ${neon-no}"
4488     echo "THUMB enabled             ${thumb-no}"
4489 fi
4490 if enabled mips; then
4491     echo "MIPS FPU enabled          ${mipsfpu-no}"
4492     echo "MIPS32R2 enabled          ${mips32r2-no}"
4493     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4494     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4495 fi
4496 if enabled ppc; then
4497     echo "AltiVec enabled           ${altivec-no}"
4498     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4499     echo "dcbzl available           ${dcbzl-no}"
4500 fi
4501 if enabled sparc; then
4502     echo "VIS enabled               ${vis-no}"
4503 fi
4504 echo "debug symbols             ${debug-no}"
4505 echo "strip symbols             ${stripping-no}"
4506 echo "optimize for size         ${small-no}"
4507 echo "optimizations             ${optimizations-no}"
4508 echo "static                    ${static-no}"
4509 echo "shared                    ${shared-no}"
4510 echo "postprocessing support    ${postproc-no}"
4511 echo "new filter support        ${avfilter-no}"
4512 echo "network support           ${network-no}"
4513 echo "threading support         ${thread_type-no}"
4514 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4515 echo "SDL support               ${sdl-no}"
4516 echo "opencl enabled            ${opencl-no}"
4517 echo "libshine enabled          ${libshine-no}"
4518 echo "texi2html enabled         ${texi2html-no}"
4519 echo "perl enabled              ${perl-no}"
4520 echo "pod2man enabled           ${pod2man-no}"
4521 echo "makeinfo enabled          ${makeinfo-no}"
4522 test -n "$random_seed" &&
4523     echo "random seed               ${random_seed}"
4524 echo
4525
4526 echo "External libraries:"
4527 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4528 echo
4529
4530 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4531     echo "Enabled ${type}s:"
4532     eval list=\$$(toupper $type)_LIST
4533     print_enabled '_*' $list | print_3_columns
4534     echo
4535 done
4536
4537 license="LGPL version 2.1 or later"
4538 if enabled nonfree; then
4539     license="nonfree and unredistributable"
4540 elif enabled gplv3; then
4541     license="GPL version 3 or later"
4542 elif enabled lgplv3; then
4543     license="LGPL version 3 or later"
4544 elif enabled gpl; then
4545     license="GPL version 2 or later"
4546 fi
4547
4548 echo "License: $license"
4549
4550 echo "Creating config.mak, config.h, and doc/config.texi..."
4551
4552 test -e Makefile || $ln_s "$source_path/Makefile" .
4553
4554 enabled stripping || strip="echo skipping strip"
4555
4556 config_files="$TMPH config.mak doc/config.texi"
4557
4558 cat > config.mak <<EOF
4559 # Automatically generated by configure - do not modify!
4560 ifndef FFMPEG_CONFIG_MAK
4561 FFMPEG_CONFIG_MAK=1
4562 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4563 prefix=$prefix
4564 LIBDIR=\$(DESTDIR)$libdir
4565 SHLIBDIR=\$(DESTDIR)$shlibdir
4566 INCDIR=\$(DESTDIR)$incdir
4567 BINDIR=\$(DESTDIR)$bindir
4568 DATADIR=\$(DESTDIR)$datadir
4569 MANDIR=\$(DESTDIR)$mandir
4570 SRC_PATH=$source_path
4571 ifndef MAIN_MAKEFILE
4572 SRC_PATH:=\$(SRC_PATH:.%=..%)
4573 endif
4574 CC_IDENT=$cc_ident
4575 ARCH=$arch
4576 CC=$cc
4577 CXX=$cxx
4578 AS=$as
4579 LD=$ld
4580 DEPCC=$dep_cc
4581 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4582 DEPAS=$as
4583 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4584 YASM=$yasmexe
4585 DEPYASM=$yasmexe
4586 AR=$ar
4587 ARFLAGS=$arflags
4588 AR_O=$ar_o
4589 RANLIB=$ranlib
4590 CP=cp -p
4591 LN_S=$ln_s
4592 STRIP=$strip
4593 CPPFLAGS=$CPPFLAGS
4594 CFLAGS=$CFLAGS
4595 CXXFLAGS=$CXXFLAGS
4596 ASFLAGS=$ASFLAGS
4597 AS_C=$AS_C
4598 AS_O=$AS_O
4599 CC_C=$CC_C
4600 CC_E=$CC_E
4601 CC_O=$CC_O
4602 CXX_C=$CXX_C
4603 CXX_O=$CXX_O
4604 LD_O=$LD_O
4605 LD_LIB=$LD_LIB
4606 LD_PATH=$LD_PATH
4607 DLLTOOL=$dlltool
4608 LDFLAGS=$LDFLAGS
4609 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4610 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4611 YASMFLAGS=$YASMFLAGS
4612 BUILDSUF=$build_suffix
4613 PROGSSUF=$progs_suffix
4614 FULLNAME=$FULLNAME
4615 LIBPREF=$LIBPREF
4616 LIBSUF=$LIBSUF
4617 LIBNAME=$LIBNAME
4618 SLIBPREF=$SLIBPREF
4619 SLIBSUF=$SLIBSUF
4620 EXESUF=$EXESUF
4621 EXTRA_VERSION=$extra_version
4622 CCDEP=$CCDEP
4623 CXXDEP=$CXXDEP
4624 CCDEP_FLAGS=$CCDEP_FLAGS
4625 ASDEP=$ASDEP
4626 ASDEP_FLAGS=$ASDEP_FLAGS
4627 CC_DEPFLAGS=$CC_DEPFLAGS
4628 AS_DEPFLAGS=$AS_DEPFLAGS
4629 HOSTCC=$host_cc
4630 HOSTLD=$host_ld
4631 HOSTCFLAGS=$host_cflags
4632 HOSTCPPFLAGS=$host_cppflags
4633 HOSTEXESUF=$HOSTEXESUF
4634 HOSTLDFLAGS=$host_ldflags
4635 HOSTLIBS=$host_libs
4636 DEPHOSTCC=$host_cc
4637 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4638 HOSTCCDEP=$HOSTCCDEP
4639 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4640 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4641 HOSTCC_C=$HOSTCC_C
4642 HOSTCC_O=$HOSTCC_O
4643 HOSTLD_O=$HOSTLD_O
4644 TARGET_EXEC=$target_exec $target_exec_args
4645 TARGET_PATH=$target_path
4646 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4647 LIBS-ffplay=$sdl_libs
4648 CFLAGS-ffplay=$sdl_cflags
4649 ZLIB=$($ldflags_filter -lz)
4650 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4651 EXTRALIBS=$extralibs
4652 COMPAT_OBJS=$compat_objs
4653 EXEOBJS=$exeobjs
4654 INSTALL=$install
4655 LIBTARGET=${LIBTARGET}
4656 SLIBNAME=${SLIBNAME}
4657 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4658 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4659 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4660 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4661 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4662 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4663 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4664 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4665 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4666 NOREDZONE_FLAGS=$noredzone_flags
4667 EOF
4668
4669 get_version(){
4670     lcname=lib${1}
4671     name=$(toupper $lcname)
4672     file=$source_path/$lcname/version.h
4673     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4674     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4675     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4676     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4677     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4678 }
4679
4680 map 'get_version $v' $LIBRARY_LIST
4681
4682 cat > $TMPH <<EOF
4683 /* Automatically generated by configure - do not modify! */
4684 #ifndef FFMPEG_CONFIG_H
4685 #define FFMPEG_CONFIG_H
4686 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4687 #define FFMPEG_LICENSE "$(c_escape $license)"
4688 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4689 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4690 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4691 #define av_restrict $_restrict
4692 #define EXTERN_PREFIX "${extern_prefix}"
4693 #define EXTERN_ASM ${extern_prefix}
4694 #define SLIBSUF "$SLIBSUF"
4695 #define HAVE_MMX2 HAVE_MMXEXT
4696 EOF
4697
4698 test -n "$assert_level" &&
4699     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4700
4701 test -n "$malloc_prefix" &&
4702     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4703
4704 if enabled yasm; then
4705     append config_files $TMPASM
4706     printf '' >$TMPASM
4707 fi
4708
4709 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4710
4711
4712 mkdir -p doc
4713 echo "@c auto-generated by configure" > doc/config.texi
4714
4715 print_config ARCH_   "$config_files" $ARCH_LIST
4716 print_config HAVE_   "$config_files" $HAVE_LIST
4717 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4718                                      $CONFIG_EXTRA      \
4719                                      $ALL_COMPONENTS    \
4720
4721 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4722 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4723
4724 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4725 cp_if_changed $TMPH config.h
4726 touch .config
4727
4728 enabled yasm && cp_if_changed $TMPASM config.asm
4729
4730 cat > $TMPH <<EOF
4731 /* Generated by ffconf */
4732 #ifndef AVUTIL_AVCONFIG_H
4733 #define AVUTIL_AVCONFIG_H
4734 EOF
4735
4736 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4737
4738 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4739
4740 cp_if_changed $TMPH libavutil/avconfig.h
4741
4742 if test -n "$WARNINGS"; then
4743     printf "\n$WARNINGS"
4744     enabled fatal_warnings && exit 1
4745 fi
4746
4747 # build pkg-config files
4748
4749 pkgconfig_generate(){
4750     name=$1
4751     shortname=${name#lib}${build_suffix}
4752     comment=$2
4753     version=$3
4754     libs=$4
4755     requires=$5
4756     enabled ${name#lib} || return 0
4757     mkdir -p $name
4758     cat <<EOF > $name/$name${build_suffix}.pc
4759 prefix=$prefix
4760 exec_prefix=\${prefix}
4761 libdir=$libdir
4762 includedir=$incdir
4763
4764 Name: $name
4765 Description: $comment
4766 Version: $version
4767 Requires: $(enabled shared || echo $requires)
4768 Requires.private: $(enabled shared && echo $requires)
4769 Conflicts:
4770 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4771 Libs.private: $(enabled shared && echo $libs)
4772 Cflags: -I\${includedir}
4773 EOF
4774
4775 mkdir -p doc/examples/pc-uninstalled
4776 includedir=${source_path}
4777 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4778     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4779 prefix=
4780 exec_prefix=
4781 libdir=\${pcfiledir}/../../../$name
4782 includedir=${includedir}
4783
4784 Name: $name
4785 Description: $comment
4786 Version: $version
4787 Requires: $requires
4788 Conflicts:
4789 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4790 Cflags: -I\${includedir}
4791 EOF
4792 }
4793
4794 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4795 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4796 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4797 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4798 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4799 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4800 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4801 lavfi_libs=${lavfi_libs%, }
4802
4803 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4804 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4805
4806 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4807 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"