jpeg2000dec: merge struct field types from j2k
[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_v4l2_frmivalenum_discrete
1515     symver_asm_label
1516     symver_gnu_asm
1517     sync_val_compare_and_swap
1518     sysconf
1519     sysctl
1520     sys_mman_h
1521     sys_param_h
1522     sys_resource_h
1523     sys_select_h
1524     sys_soundcard_h
1525     sys_time_h
1526     sys_videoio_h
1527     termios_h
1528     texi2html
1529     threads
1530     unistd_h
1531     usleep
1532     vfp_args
1533     VirtualAlloc
1534     windows_h
1535     winsock2_h
1536     xform_asm
1537     xmm_clobbers
1538 "
1539
1540 # options emitted with CONFIG_ prefix but not available on the command line
1541 CONFIG_EXTRA="
1542     aandcttables
1543     ac3dsp
1544     audio_frame_queue
1545     dsputil
1546     frame_thread_encoder
1547     gcrypt
1548     golomb
1549     gplv3
1550     h264chroma
1551     h264dsp
1552     h264pred
1553     h264qpel
1554     hpeldsp
1555     huffman
1556     lgplv3
1557     lpc
1558     mpegaudio
1559     mpegaudiodsp
1560     mpegvideo
1561     mpegvideoenc
1562     nettle
1563     rangecoder
1564     rtpdec
1565     rtpenc_chain
1566     sinewin
1567     videodsp
1568     vp3dsp
1569 "
1570
1571 CMDLINE_SELECT="
1572     $ARCH_EXT_LIST
1573     $CONFIG_LIST
1574     $HAVE_LIST_CMDLINE
1575     $THREADS_LIST
1576     asm
1577     cross_compile
1578     debug
1579     extra_warnings
1580     logging
1581     lto
1582     optimizations
1583     stripping
1584 "
1585
1586 PATHS_LIST='
1587     bindir
1588     datadir
1589     incdir
1590     libdir
1591     mandir
1592     prefix
1593     shlibdir
1594 '
1595
1596 CMDLINE_SET="
1597     $PATHS_LIST
1598     ar
1599     arch
1600     as
1601     assert_level
1602     build_suffix
1603     cc
1604     cpu
1605     cross_prefix
1606     cxx
1607     dep_cc
1608     extra_version
1609     host_cc
1610     host_cflags
1611     host_ld
1612     host_ldflags
1613     host_libs
1614     host_os
1615     install
1616     ld
1617     logfile
1618     malloc_prefix
1619     nm
1620     optflags
1621     pkg_config
1622     progs_suffix
1623     random_seed
1624     samples
1625     strip
1626     sysinclude
1627     sysroot
1628     target_exec
1629     target_os
1630     target_path
1631     target_samples
1632     toolchain
1633     valgrind
1634     yasmexe
1635 "
1636
1637 CMDLINE_APPEND="
1638     extra_cflags
1639     extra_cxxflags
1640     host_cppflags
1641 "
1642
1643 # code dependency declarations
1644
1645 # architecture extensions
1646
1647 armv5te_deps="arm"
1648 armv6_deps="arm"
1649 armv6t2_deps="arm"
1650 neon_deps="arm"
1651 vfp_deps="arm"
1652 vfpv3_deps="vfp"
1653
1654 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1655
1656 mipsfpu_deps="mips"
1657 mips32r2_deps="mips"
1658 mipsdspr1_deps="mips"
1659 mipsdspr2_deps="mips"
1660
1661 altivec_deps="ppc"
1662 ppc4xx_deps="ppc"
1663
1664 vis_deps="sparc"
1665
1666 x86_64_suggest="fast_cmov i686"
1667
1668 amd3dnow_deps="mmx"
1669 amd3dnowext_deps="amd3dnow"
1670 mmx_deps="x86"
1671 mmxext_deps="mmx"
1672 sse_deps="mmxext"
1673 sse2_deps="sse"
1674 sse3_deps="sse2"
1675 ssse3_deps="sse3"
1676 sse4_deps="ssse3"
1677 sse42_deps="sse4"
1678 avx_deps="sse42"
1679 fma4_deps="avx"
1680
1681 mmx_external_deps="yasm"
1682 mmx_inline_deps="inline_asm"
1683 mmx_suggest="mmx_external mmx_inline"
1684
1685 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1686     eval dep=\$${ext}_deps
1687     eval ${ext}_external_deps='"${dep}_external"'
1688     eval ${ext}_inline_deps='"${dep}_inline"'
1689     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1690 done
1691
1692 aligned_stack_if_any="ppc x86"
1693 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1694 fast_clz_if_any="alpha avr32 mips ppc x86"
1695 fast_unaligned_if_any="ppc x86"
1696
1697 inline_asm_deps="!tms470"
1698 need_memalign="altivec neon sse"
1699
1700 symver_if_any="symver_asm_label symver_gnu_asm"
1701
1702 log2_deps="!msvcrt"
1703
1704 # subsystems
1705 dct_select="rdft"
1706 error_resilience_select="dsputil"
1707 frame_thread_encoder_deps="encoders threads"
1708 lpc_select="dsputil"
1709 mdct_select="fft"
1710 rdft_select="fft"
1711 mpegaudio_select="mpegaudiodsp"
1712 mpegaudiodsp_select="dct"
1713 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1714 mpegvideoenc_select="mpegvideo"
1715
1716 # decoders / encoders
1717 aac_decoder_select="mdct sinewin"
1718 aac_encoder_select="audio_frame_queue mdct sinewin"
1719 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1720 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1721 ac3_encoder_select="mdct ac3dsp dsputil"
1722 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1723 aic_decoder_select="dsputil golomb"
1724 alac_encoder_select="lpc"
1725 als_decoder_select="dsputil"
1726 amrnb_decoder_select="lsp"
1727 amrwb_decoder_select="lsp"
1728 amv_decoder_select="dsputil hpeldsp"
1729 amv_encoder_select="aandcttables"
1730 ape_decoder_select="dsputil"
1731 asv1_decoder_select="dsputil"
1732 asv1_encoder_select="dsputil"
1733 asv2_decoder_select="dsputil"
1734 asv2_encoder_select="dsputil"
1735 atrac1_decoder_select="mdct sinewin"
1736 atrac3_decoder_select="mdct"
1737 bink_decoder_select="dsputil hpeldsp"
1738 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1739 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1740 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1741 cllc_decoder_select="dsputil"
1742 comfortnoise_encoder_select="lpc"
1743 cook_decoder_select="dsputil mdct sinewin"
1744 cscd_decoder_select="lzo"
1745 cscd_decoder_suggest="zlib"
1746 dca_decoder_select="mdct"
1747 dirac_decoder_select="dsputil dwt golomb videodsp"
1748 dnxhd_decoder_select="dsputil"
1749 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1750 dvvideo_decoder_select="dsputil"
1751 dvvideo_encoder_select="dsputil"
1752 dxa_decoder_select="zlib"
1753 eac3_decoder_select="ac3_decoder"
1754 eac3_encoder_select="ac3_encoder"
1755 eamad_decoder_select="aandcttables dsputil mpegvideo"
1756 eatgq_decoder_select="aandcttables"
1757 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1758 exr_decoder_select="zlib"
1759 ffv1_decoder_select="dsputil golomb rangecoder"
1760 ffv1_encoder_select="dsputil rangecoder"
1761 ffvhuff_decoder_select="dsputil"
1762 ffvhuff_encoder_select="dsputil huffman"
1763 flac_decoder_select="golomb"
1764 flac_encoder_select="dsputil golomb lpc"
1765 flashsv_decoder_select="zlib"
1766 flashsv_encoder_select="zlib"
1767 flashsv2_encoder_select="zlib"
1768 flashsv2_decoder_select="zlib"
1769 flv_decoder_select="h263_decoder"
1770 flv_encoder_select="h263_encoder"
1771 fourxm_decoder_select="dsputil"
1772 fraps_decoder_select="dsputil huffman"
1773 g729_decoder_select="dsputil"
1774 h261_decoder_select="error_resilience mpegvideo"
1775 h261_encoder_select="aandcttables mpegvideoenc"
1776 h263_decoder_select="error_resilience h263_parser mpegvideo"
1777 h263_encoder_select="aandcttables mpegvideoenc"
1778 h263i_decoder_select="h263_decoder"
1779 h263p_encoder_select="h263_encoder"
1780 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1781 h264_decoder_suggest="error_resilience"
1782 huffyuv_decoder_select="dsputil"
1783 huffyuv_encoder_select="dsputil huffman"
1784 iac_decoder_select="dsputil fft mdct sinewin"
1785 imc_decoder_select="dsputil fft mdct sinewin"
1786 indeo3_decoder_select="hpeldsp"
1787 interplay_video_decoder_select="hpeldsp"
1788 jpegls_decoder_select="dsputil golomb hpeldsp"
1789 jpegls_encoder_select="golomb"
1790 jv_decoder_select="dsputil"
1791 lagarith_decoder_select="dsputil"
1792 ljpeg_encoder_select="aandcttables mpegvideoenc"
1793 loco_decoder_select="golomb"
1794 mdec_decoder_select="dsputil error_resilience mpegvideo"
1795 mimic_decoder_select="dsputil hpeldsp"
1796 mjpeg_decoder_select="dsputil hpeldsp"
1797 mjpegb_decoder_select="dsputil hpeldsp"
1798 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1799 mlp_decoder_select="dsputil mlp_parser"
1800 motionpixels_decoder_select="dsputil"
1801 mp1_decoder_select="mpegaudio"
1802 mp1float_decoder_select="mpegaudio"
1803 mp2_decoder_select="mpegaudio"
1804 mp2float_decoder_select="mpegaudio"
1805 mp3_decoder_select="mpegaudio"
1806 mp3adu_decoder_select="mpegaudio"
1807 mp3adufloat_decoder_select="mpegaudio"
1808 mp3float_decoder_select="mpegaudio"
1809 mp3on4_decoder_select="mpegaudio"
1810 mp3on4float_decoder_select="mpegaudio"
1811 mpc7_decoder_select="dsputil mpegaudiodsp"
1812 mpc8_decoder_select="dsputil mpegaudiodsp"
1813 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1814 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1815 mpeg1video_decoder_select="error_resilience mpegvideo"
1816 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1817 mpeg2video_decoder_select="error_resilience mpegvideo"
1818 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1819 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1820 mpeg4_encoder_select="h263_encoder"
1821 msmpeg4v1_decoder_select="h263_decoder"
1822 msmpeg4v2_decoder_select="h263_decoder"
1823 msmpeg4v2_encoder_select="h263_encoder"
1824 msmpeg4v3_decoder_select="h263_decoder"
1825 msmpeg4v3_encoder_select="h263_encoder"
1826 mss2_decoder_select="error_resilience vc1_decoder"
1827 mxpeg_decoder_select="dsputil hpeldsp"
1828 nellymoser_decoder_select="mdct sinewin"
1829 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1830 nuv_decoder_select="dsputil lzo"
1831 png_decoder_select="zlib"
1832 png_encoder_select="dsputil zlib"
1833 prores_decoder_select="dsputil"
1834 prores_encoder_select="dsputil"
1835 qcelp_decoder_select="lsp"
1836 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1837 ra_144_encoder_select="audio_frame_queue lpc"
1838 ralf_decoder_select="golomb"
1839 rtjpeg_decoder_select="dsputil"
1840 rv10_decoder_select="error_resilience h263_decoder"
1841 rv10_encoder_select="h263_encoder"
1842 rv20_decoder_select="error_resilience h263_decoder"
1843 rv20_encoder_select="h263_encoder"
1844 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1845 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1846 shorten_decoder_select="golomb"
1847 sipr_decoder_select="lsp"
1848 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1849 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1850 sonic_decoder_select="golomb"
1851 sonic_encoder_select="golomb"
1852 sonic_ls_encoder_select="golomb"
1853 sp5x_decoder_select="dsputil hpeldsp"
1854 svq1_decoder_select="hpeldsp"
1855 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1856 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1857 svq3_decoder_suggest="error_resilience zlib"
1858 tak_decoder_select="dsputil"
1859 theora_decoder_select="vp3_decoder"
1860 tiff_decoder_suggest="zlib"
1861 tiff_encoder_suggest="zlib"
1862 thp_decoder_select="dsputil hpeldsp"
1863 truehd_decoder_select="mlp_parser"
1864 truemotion2_decoder_select="dsputil"
1865 truespeech_decoder_select="dsputil"
1866 tscc_decoder_select="zlib"
1867 twinvq_decoder_select="mdct lsp sinewin"
1868 utvideo_decoder_select="dsputil"
1869 utvideo_encoder_select="dsputil huffman"
1870 vble_decoder_select="dsputil"
1871 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1872 vc1image_decoder_select="vc1_decoder"
1873 vorbis_decoder_select="mdct"
1874 vorbis_encoder_select="mdct"
1875 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1876 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1877 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1878 vp6a_decoder_select="vp6_decoder"
1879 vp6f_decoder_select="vp6_decoder"
1880 vp8_decoder_select="h264pred videodsp"
1881 wmapro_decoder_select="mdct sinewin"
1882 wmav1_decoder_select="mdct sinewin"
1883 wmav1_encoder_select="mdct sinewin"
1884 wmav2_decoder_select="mdct sinewin"
1885 wmav2_encoder_select="mdct sinewin"
1886 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1887 wmv1_decoder_select="h263_decoder"
1888 wmv1_encoder_select="h263_encoder"
1889 wmv2_decoder_select="h263_decoder videodsp"
1890 wmv2_encoder_select="h263_encoder"
1891 wmv3_decoder_select="vc1_decoder"
1892 wmv3image_decoder_select="wmv3_decoder"
1893 zerocodec_decoder_select="zlib"
1894 zlib_decoder_select="zlib"
1895 zlib_encoder_select="zlib"
1896 zmbv_decoder_select="zlib"
1897 zmbv_encoder_select="zlib"
1898
1899 # hardware accelerators
1900 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1901 dxva2_deps="dxva2api_h"
1902 vaapi_deps="va_va_h"
1903 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1904 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1905 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1906
1907 h263_vaapi_hwaccel_deps="vaapi"
1908 h263_vaapi_hwaccel_select="h263_decoder"
1909 h263_vdpau_hwaccel_deps="vdpau"
1910 h263_vdpau_hwaccel_select="h263_decoder"
1911 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1912 h264_dxva2_hwaccel_deps="dxva2"
1913 h264_dxva2_hwaccel_select="h264_decoder"
1914 h264_vaapi_hwaccel_deps="vaapi"
1915 h264_vaapi_hwaccel_select="h264_decoder"
1916 h264_vda_decoder_deps="vda"
1917 h264_vda_decoder_select="h264_decoder"
1918 h264_vda_hwaccel_deps="vda"
1919 h264_vda_hwaccel_select="h264_decoder"
1920 h264_vdpau_decoder_deps="vdpau"
1921 h264_vdpau_decoder_select="h264_decoder"
1922 h264_vdpau_hwaccel_deps="vdpau"
1923 h264_vdpau_hwaccel_select="h264_decoder"
1924 mpeg_vdpau_decoder_deps="vdpau"
1925 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1926 mpeg1_vdpau_decoder_deps="vdpau"
1927 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1928 mpeg1_vdpau_hwaccel_deps="vdpau"
1929 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1930 mpeg2_crystalhd_decoder_select="crystalhd"
1931 mpeg2_dxva2_hwaccel_deps="dxva2"
1932 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1933 mpeg2_vaapi_hwaccel_deps="vaapi"
1934 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1935 mpeg2_vdpau_hwaccel_deps="vdpau"
1936 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1937 mpeg4_crystalhd_decoder_select="crystalhd"
1938 mpeg4_vaapi_hwaccel_deps="vaapi"
1939 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1940 mpeg4_vdpau_decoder_deps="vdpau"
1941 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1942 mpeg4_vdpau_hwaccel_deps="vdpau"
1943 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1944 msmpeg4_crystalhd_decoder_select="crystalhd"
1945 vc1_crystalhd_decoder_select="crystalhd"
1946 vc1_dxva2_hwaccel_deps="dxva2"
1947 vc1_dxva2_hwaccel_select="vc1_decoder"
1948 vc1_vaapi_hwaccel_deps="vaapi"
1949 vc1_vaapi_hwaccel_select="vc1_decoder"
1950 vc1_vdpau_decoder_deps="vdpau"
1951 vc1_vdpau_decoder_select="vc1_decoder"
1952 vc1_vdpau_hwaccel_deps="vdpau"
1953 vc1_vdpau_hwaccel_select="vc1_decoder"
1954 wmv3_crystalhd_decoder_select="crystalhd"
1955 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1956 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1957 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1958 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1959
1960 # parsers
1961 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1962 mpeg4video_parser_select="error_resilience mpegvideo"
1963 mpegvideo_parser_select="error_resilience mpegvideo"
1964 vc1_parser_select="mpegvideo"
1965
1966 # external libraries
1967 libaacplus_encoder_deps="libaacplus"
1968 libcelt_decoder_deps="libcelt"
1969 libfaac_encoder_deps="libfaac"
1970 libfaac_encoder_select="audio_frame_queue"
1971 libfdk_aac_encoder_deps="libfdk_aac"
1972 libfdk_aac_encoder_select="audio_frame_queue"
1973 libgsm_decoder_deps="libgsm"
1974 libgsm_encoder_deps="libgsm"
1975 libgsm_ms_decoder_deps="libgsm"
1976 libgsm_ms_encoder_deps="libgsm"
1977 libilbc_decoder_deps="libilbc"
1978 libilbc_encoder_deps="libilbc"
1979 libmodplug_demuxer_deps="libmodplug"
1980 libmp3lame_encoder_deps="libmp3lame"
1981 libmp3lame_encoder_select="audio_frame_queue"
1982 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1983 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1984 libopencore_amrnb_encoder_select="audio_frame_queue"
1985 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1986 libopenjpeg_decoder_deps="libopenjpeg"
1987 libopenjpeg_encoder_deps="libopenjpeg"
1988 libopus_decoder_deps="libopus"
1989 libopus_encoder_deps="libopus"
1990 libopus_encoder_select="audio_frame_queue"
1991 libquvi_demuxer_deps="libquvi"
1992 libschroedinger_decoder_deps="libschroedinger"
1993 libschroedinger_encoder_deps="libschroedinger"
1994 libshine_encoder_deps="libshine"
1995 libshine_encoder_select="audio_frame_queue"
1996 libspeex_decoder_deps="libspeex"
1997 libspeex_encoder_deps="libspeex"
1998 libspeex_encoder_select="audio_frame_queue"
1999 libstagefright_h264_decoder_deps="libstagefright_h264"
2000 libtheora_encoder_deps="libtheora"
2001 libtwolame_encoder_deps="libtwolame"
2002 libvo_aacenc_encoder_deps="libvo_aacenc"
2003 libvo_aacenc_encoder_select="audio_frame_queue"
2004 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2005 libvorbis_decoder_deps="libvorbis"
2006 libvorbis_encoder_deps="libvorbis"
2007 libvorbis_encoder_select="audio_frame_queue"
2008 libvpx_vp8_decoder_deps="libvpx"
2009 libvpx_vp8_encoder_deps="libvpx"
2010 libvpx_vp9_decoder_deps="libvpx"
2011 libvpx_vp9_encoder_deps="libvpx"
2012 libx264_encoder_deps="libx264"
2013 libx264rgb_encoder_deps="libx264"
2014 libxavs_encoder_deps="libxavs"
2015 libxvid_encoder_deps="libxvid"
2016 libutvideo_decoder_deps="libutvideo"
2017 libutvideo_encoder_deps="libutvideo"
2018
2019 # demuxers / muxers
2020 ac3_demuxer_select="ac3_parser"
2021 asf_stream_muxer_select="asf_muxer"
2022 avisynth_demuxer_deps="avisynth"
2023 dirac_demuxer_select="dirac_parser"
2024 dts_demuxer_select="dca_parser"
2025 dtshd_demuxer_select="dca_parser"
2026 eac3_demuxer_select="ac3_parser"
2027 f4v_muxer_select="mov_muxer"
2028 flac_demuxer_select="flac_parser"
2029 ipod_muxer_select="mov_muxer"
2030 ismv_muxer_select="mov_muxer"
2031 libnut_demuxer_deps="libnut"
2032 libnut_muxer_deps="libnut"
2033 matroska_audio_muxer_select="matroska_muxer"
2034 matroska_demuxer_suggest="bzlib lzo zlib"
2035 mov_demuxer_suggest="zlib"
2036 mov_muxer_select="rtpenc_chain"
2037 mp3_demuxer_select="mpegaudio_parser"
2038 mp4_muxer_select="mov_muxer"
2039 mpegts_muxer_select="adts_muxer latm_muxer"
2040 mpegtsraw_demuxer_select="mpegts_demuxer"
2041 mxf_d10_muxer_select="mxf_muxer"
2042 ogg_demuxer_select="golomb"
2043 psp_muxer_select="mov_muxer"
2044 rtp_demuxer_select="sdp_demuxer"
2045 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2046 rtsp_demuxer_select="http_protocol rtpdec"
2047 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2048 sap_demuxer_select="sdp_demuxer"
2049 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2050 sdp_demuxer_select="rtpdec"
2051 smoothstreaming_muxer_select="ismv_muxer"
2052 spdif_muxer_select="aac_parser"
2053 tak_demuxer_select="tak_parser"
2054 tg2_muxer_select="mov_muxer"
2055 tgp_muxer_select="mov_muxer"
2056 vobsub_demuxer_select="mpegps_demuxer"
2057 w64_demuxer_deps="wav_demuxer"
2058 w64_muxer_deps="wav_muxer"
2059
2060 # indevs / outdevs
2061 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2062 alsa_outdev_deps="alsa_asoundlib_h"
2063 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2064 caca_outdev_deps="libcaca"
2065 dshow_indev_deps="IBaseFilter"
2066 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2067 dv1394_indev_deps="dv1394 dv_demuxer"
2068 fbdev_indev_deps="linux_fb_h"
2069 iec61883_indev_deps="libiec61883"
2070 jack_indev_deps="jack_jack_h sem_timedwait"
2071 lavfi_indev_deps="avfilter"
2072 libcdio_indev_deps="libcdio"
2073 libdc1394_indev_deps="libdc1394"
2074 libv4l2_indev_deps="libv4l2"
2075 openal_indev_deps="openal"
2076 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2077 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2078 pulse_indev_deps="libpulse"
2079 sdl_outdev_deps="sdl"
2080 sndio_indev_deps="sndio_h"
2081 sndio_outdev_deps="sndio_h"
2082 v4l_indev_deps="linux_videodev_h"
2083 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2084 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2085 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2086 vfwcap_indev_extralibs="-lavicap32"
2087 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2088 xv_outdev_extralibs="-lXv -lX11 -lXext"
2089 x11grab_indev_deps="x11grab"
2090
2091 # protocols
2092 bluray_protocol_deps="libbluray"
2093 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2094 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2095 ffrtmpcrypt_protocol_select="tcp_protocol"
2096 ffrtmphttp_protocol_deps="!librtmp_protocol"
2097 ffrtmphttp_protocol_select="http_protocol"
2098 ftp_protocol_select="tcp_protocol"
2099 gopher_protocol_select="network"
2100 httpproxy_protocol_select="tcp_protocol"
2101 http_protocol_select="tcp_protocol"
2102 https_protocol_select="tls_protocol"
2103 librtmp_protocol_deps="librtmp"
2104 librtmpe_protocol_deps="librtmp"
2105 librtmps_protocol_deps="librtmp"
2106 librtmpt_protocol_deps="librtmp"
2107 librtmpte_protocol_deps="librtmp"
2108 mmsh_protocol_select="http_protocol"
2109 mmst_protocol_select="network"
2110 rtmp_protocol_deps="!librtmp_protocol"
2111 rtmp_protocol_select="tcp_protocol"
2112 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2113 rtmps_protocol_deps="!librtmp_protocol"
2114 rtmps_protocol_select="tls_protocol"
2115 rtmpt_protocol_select="ffrtmphttp_protocol"
2116 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2117 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2118 rtp_protocol_select="udp_protocol"
2119 sctp_protocol_deps="struct_sctp_event_subscribe"
2120 sctp_protocol_select="network"
2121 srtp_protocol_select="rtp_protocol"
2122 tcp_protocol_select="network"
2123 tls_protocol_deps_any="openssl gnutls"
2124 tls_protocol_select="tcp_protocol"
2125 udp_protocol_select="network"
2126
2127 # filters
2128 aconvert_filter_deps="swresample"
2129 amovie_filter_deps="avcodec avformat"
2130 aresample_filter_deps="swresample"
2131 ass_filter_deps="libass"
2132 asyncts_filter_deps="avresample"
2133 atempo_filter_deps="avcodec rdft"
2134 azmq_filter_deps="libzmq"
2135 blackframe_filter_deps="gpl"
2136 boxblur_filter_deps="gpl"
2137 colormatrix_filter_deps="gpl"
2138 cropdetect_filter_deps="gpl"
2139 dctdnoiz_filter_deps="avcodec fft"
2140 delogo_filter_deps="gpl"
2141 deshake_filter_deps="avcodec"
2142 deshake_filter_select="dsputil"
2143 drawtext_filter_deps="libfreetype"
2144 ebur128_filter_deps="gpl"
2145 flite_filter_deps="libflite"
2146 frei0r_filter_deps="frei0r dlopen"
2147 frei0r_filter_extralibs='$ldl'
2148 frei0r_src_filter_deps="frei0r dlopen"
2149 frei0r_src_filter_extralibs='$ldl'
2150 geq_filter_deps="gpl"
2151 histeq_filter_deps="gpl"
2152 hqdn3d_filter_deps="gpl"
2153 hue_filter_deps="gpl"
2154 interlace_filter_deps="gpl"
2155 kerndeint_filter_deps="gpl"
2156 movie_filter_deps="avcodec avformat"
2157 mp_filter_deps="gpl avcodec swscale inline_asm"
2158 mpdecimate_filter_deps="gpl avcodec"
2159 mptestsrc_filter_deps="gpl"
2160 negate_filter_deps="lut_filter"
2161 noise_filter_deps="gpl"
2162 resample_filter_deps="avresample"
2163 ocv_filter_deps="libopencv"
2164 owdenoise_filter_deps="gpl"
2165 pan_filter_deps="swresample"
2166 pp_filter_deps="gpl postproc"
2167 removelogo_filter_deps="avcodec avformat swscale"
2168 scale_filter_deps="swscale"
2169 smartblur_filter_deps="gpl swscale"
2170 showspectrum_filter_deps="avcodec rdft"
2171 stereo3d_filter_deps="gpl"
2172 subtitles_filter_deps="avformat avcodec libass"
2173 super2xsai_filter_deps="gpl"
2174 tinterlace_filter_deps="gpl"
2175 vidstabdetect_filter_deps="libvidstab"
2176 vidstabtransform_filter_deps="libvidstab"
2177 yadif_filter_deps="gpl"
2178 pixfmts_super2xsai_test_deps="super2xsai_filter"
2179 tinterlace_merge_test_deps="tinterlace_filter"
2180 tinterlace_pad_test_deps="tinterlace_filter"
2181 zmq_filter_deps="libzmq"
2182
2183 # libraries
2184 avcodec_deps="avutil"
2185 avdevice_deps="avutil avcodec avformat"
2186 avfilter_deps="avutil"
2187 avformat_deps="avutil avcodec"
2188 avresample_deps="avutil"
2189 postproc_deps="avutil gpl"
2190 swscale_deps="avutil"
2191
2192 # programs
2193 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2194 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2195                null_filter
2196                setpts_filter trim_filter"
2197 ffplay_deps="avcodec avformat swscale swresample sdl"
2198 ffplay_select="rdft crop_filter"
2199 ffprobe_deps="avcodec avformat"
2200 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2201 ffserver_extralibs='$ldl'
2202
2203 # documentation
2204 podpages_deps="perl"
2205 manpages_deps="perl pod2man"
2206 htmlpages_deps="texi2html"
2207 txtpages_deps="makeinfo"
2208 doc_deps_any="manpages htmlpages podpages txtpages"
2209
2210 # default parameters
2211
2212 logfile="config.log"
2213
2214 # installation paths
2215 prefix_default="/usr/local"
2216 bindir_default='${prefix}/bin'
2217 datadir_default='${prefix}/share/ffmpeg'
2218 incdir_default='${prefix}/include'
2219 libdir_default='${prefix}/lib'
2220 mandir_default='${prefix}/share/man'
2221 shlibdir_default="$libdir_default"
2222
2223 # toolchain
2224 ar_default="ar"
2225 cc_default="gcc"
2226 cxx_default="g++"
2227 host_cc_default="gcc"
2228 cp_f="cp -f"
2229 install="install"
2230 ln_s="ln -s -f"
2231 nm_default="nm -g"
2232 objformat="elf"
2233 pkg_config_default=pkg-config
2234 ranlib="ranlib"
2235 strip_default="strip"
2236 yasmexe_default="yasm"
2237
2238 nogas=":"
2239
2240 # machine
2241 arch_default=$(uname -m)
2242 cpu="generic"
2243
2244 # OS
2245 target_os_default=$(tolower $(uname -s))
2246 host_os=$target_os_default
2247
2248 # configurable options
2249 enable $PROGRAM_LIST
2250 enable $DOCUMENT_LIST
2251 enable $(filter_out avresample $LIBRARY_LIST)
2252 enable stripping
2253
2254 enable asm
2255 enable debug
2256 enable doc
2257 enable optimizations
2258 enable runtime_cpudetect
2259 enable safe_bitstream_reader
2260 enable static
2261 enable swscale_alpha
2262
2263 # Enable hwaccels by default.
2264 enable dxva2 vaapi vdpau
2265
2266 # build settings
2267 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2268 FFSERVERLDFLAGS=-Wl,-E
2269 LIBPREF="lib"
2270 LIBSUF=".a"
2271 FULLNAME='$(NAME)$(BUILDSUF)'
2272 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2273 SLIBPREF="lib"
2274 SLIBSUF=".so"
2275 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2276 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2277 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2278 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2279 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2280 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2281
2282 asflags_filter=echo
2283 cflags_filter=echo
2284 ldflags_filter=echo
2285
2286 AS_C='-c'
2287 AS_O='-o $@'
2288 CC_C='-c'
2289 CC_E='-E -o $@'
2290 CC_O='-o $@'
2291 CXX_C='-c'
2292 CXX_O='-o $@'
2293 LD_O='-o $@'
2294 LD_LIB='-l%'
2295 LD_PATH='-L'
2296 HOSTCC_C='-c'
2297 HOSTCC_O='-o $@'
2298 HOSTLD_O='-o $@'
2299
2300 host_cflags='-O3 -g'
2301 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2302 host_libs='-lm'
2303 host_cflags_filter=echo
2304 host_ldflags_filter=echo
2305
2306 target_path='$(CURDIR)'
2307
2308 # since the object filename is not given with the -MM flag, the compiler
2309 # is only able to print the basename, and we must add the path ourselves
2310 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2311 DEPFLAGS='-MM'
2312
2313 # find source path
2314 if test -f configure; then
2315     source_path=.
2316 else
2317     source_path=$(cd $(dirname "$0"); pwd)
2318     echo "$source_path" | grep -q '[[:blank:]]' &&
2319         die "Out of tree builds are impossible with whitespace in source path."
2320     test -e "$source_path/config.h" &&
2321         die "Out of tree builds are impossible with config.h in source dir."
2322 fi
2323
2324 for v in "$@"; do
2325     r=${v#*=}
2326     l=${v%"$r"}
2327     r=$(sh_quote "$r")
2328     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2329 done
2330
2331 find_things(){
2332     thing=$1
2333     pattern=$2
2334     file=$source_path/$3
2335     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2336 }
2337
2338 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2339 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2340 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2341 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2342 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2343 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2344 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2345 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2346 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2347 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2348 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2349
2350 ALL_COMPONENTS="
2351     $BSF_LIST
2352     $DECODER_LIST
2353     $DEMUXER_LIST
2354     $ENCODER_LIST
2355     $FILTER_LIST
2356     $HWACCEL_LIST
2357     $INDEV_LIST
2358     $MUXER_LIST
2359     $OUTDEV_LIST
2360     $PARSER_LIST
2361     $PROTOCOL_LIST
2362 "
2363
2364 for n in $COMPONENT_LIST; do
2365     v=$(toupper ${n%s})_LIST
2366     eval enable \$$v
2367     eval ${n}_if_any="\$$v"
2368 done
2369
2370 enable $ARCH_EXT_LIST
2371
2372 die_unknown(){
2373     echo "Unknown option \"$1\"."
2374     echo "See $0 --help for available options."
2375     exit 1
2376 }
2377
2378 print_3_columns() {
2379     cat | tr ' ' '\n' | sort | pr -r -3 -t
2380 }
2381
2382 show_list() {
2383     suffix=_$1
2384     shift
2385     echo $* | sed s/$suffix//g | print_3_columns
2386     exit 0
2387 }
2388
2389 rand_list(){
2390     IFS=', '
2391     set -- $*
2392     unset IFS
2393     for thing; do
2394         comp=${thing%:*}
2395         prob=${thing#$comp}
2396         prob=${prob#:}
2397         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2398         echo "prob ${prob:-0.5}"
2399         printf '%s\n' $comp
2400     done
2401 }
2402
2403 do_random(){
2404     action=$1
2405     shift
2406     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2407     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2408 }
2409
2410 for opt do
2411     optval="${opt#*=}"
2412     case "$opt" in
2413         --extra-ldflags=*)
2414             add_ldflags $optval
2415         ;;
2416         --extra-libs=*)
2417             add_extralibs $optval
2418         ;;
2419         --disable-devices)
2420             disable $INDEV_LIST $OUTDEV_LIST
2421         ;;
2422         --enable-debug=*)
2423             debuglevel="$optval"
2424         ;;
2425         --disable-programs)
2426             disable $PROGRAM_LIST
2427         ;;
2428         --disable-everything)
2429             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2430         ;;
2431         --disable-all)
2432             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2433             disable $LIBRARY_LIST $PROGRAM_LIST doc
2434         ;;
2435         --enable-random|--disable-random)
2436             action=${opt%%-random}
2437             do_random ${action#--} $COMPONENT_LIST
2438         ;;
2439         --enable-random=*|--disable-random=*)
2440             action=${opt%%-random=*}
2441             do_random ${action#--} $optval
2442         ;;
2443         --enable-*=*|--disable-*=*)
2444             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2445             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2446             eval list=\$$(toupper $thing)_LIST
2447             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2448             list=$(filter "$name" $list)
2449             [ "$list" = "" ] && warn "Option $opt did not match anything"
2450             $action $list
2451         ;;
2452         --enable-?*|--disable-?*)
2453             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2454             if is_in $option $COMPONENT_LIST; then
2455                 test $action = disable && action=unset
2456                 eval $action \$$(toupper ${option%s})_LIST
2457             elif is_in $option $CMDLINE_SELECT; then
2458                 $action $option
2459             else
2460                 die_unknown $opt
2461             fi
2462         ;;
2463         --list-*)
2464             NAME="${opt#--list-}"
2465             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2466             NAME=${NAME%s}
2467             eval show_list $NAME \$$(toupper $NAME)_LIST
2468         ;;
2469         --help|-h) show_help
2470         ;;
2471         --fatal-warnings) enable fatal_warnings
2472         ;;
2473         *)
2474             optname="${opt%%=*}"
2475             optname="${optname#--}"
2476             optname=$(echo "$optname" | sed 's/-/_/g')
2477             if is_in $optname $CMDLINE_SET; then
2478                 eval $optname='$optval'
2479             elif is_in $optname $CMDLINE_APPEND; then
2480                 append $optname "$optval"
2481             else
2482                 die_unknown $opt
2483             fi
2484         ;;
2485     esac
2486 done
2487
2488 disabled logging && logfile=/dev/null
2489
2490 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2491 set >> $logfile
2492
2493 test -n "$cross_prefix" && enable cross_compile
2494
2495 if enabled cross_compile; then
2496     test -n "$arch" && test -n "$target_os" ||
2497         die "Must specify target arch and OS when cross-compiling"
2498 fi
2499
2500 ar_default="${cross_prefix}${ar_default}"
2501 cc_default="${cross_prefix}${cc_default}"
2502 cxx_default="${cross_prefix}${cxx_default}"
2503 nm_default="${cross_prefix}${nm_default}"
2504 pkg_config_default="${cross_prefix}${pkg_config_default}"
2505 ranlib="${cross_prefix}${ranlib}"
2506 strip_default="${cross_prefix}${strip_default}"
2507
2508 sysinclude_default="${sysroot}/usr/include"
2509
2510 test -n "$valgrind" && toolchain="valgrind-memcheck"
2511
2512 case "$toolchain" in
2513     clang-asan)
2514         cc_default="clang"
2515         add_cflags  -fsanitize=address
2516         add_ldflags -fsanitize=address
2517     ;;
2518     clang-tsan)
2519         cc_default="clang"
2520         add_cflags  -fsanitize=thread -pie
2521         add_ldflags -fsanitize=thread -pie
2522     ;;
2523     gcc-asan)
2524         cc_default="gcc"
2525         add_cflags  -fsanitize=address
2526         add_ldflags -fsanitize=address
2527     ;;
2528     gcc-tsan)
2529         cc_default="gcc"
2530         add_cflags  -fsanitize=thread -pie -fPIC
2531         add_ldflags -fsanitize=thread -pie -fPIC
2532     ;;
2533     valgrind-massif)
2534         target_exec_default=${valgrind:-"valgrind"}
2535         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"
2536     ;;
2537     valgrind-memcheck)
2538         target_exec_default=${valgrind:-"valgrind"}
2539         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2540     ;;
2541     msvc)
2542         cc_default="c99wrap cl"
2543         ld_default="c99wrap link"
2544         nm_default="dumpbin -symbols"
2545         ar_default="lib"
2546         target_os_default="win32"
2547     ;;
2548     icl)
2549         cc_default="c99wrap -noconv icl"
2550         ld_default="c99wrap xilink"
2551         nm_default="dumpbin -symbols"
2552         ar_default="xilib"
2553         target_os_default="win32"
2554     ;;
2555     gcov)
2556         add_cflags  -fprofile-arcs -ftest-coverage
2557         add_ldflags -fprofile-arcs -ftest-coverage
2558     ;;
2559     ?*)
2560         die "Unknown toolchain $toolchain"
2561     ;;
2562 esac
2563
2564 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2565 enabled cross_compile || host_cc_default=$cc
2566 set_default host_cc
2567
2568 if ! $pkg_config --version >/dev/null 2>&1; then
2569     warn "$pkg_config not found, library detection may fail."
2570     pkg_config=false
2571 fi
2572
2573 exesuf() {
2574     case $1 in
2575         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2576     esac
2577 }
2578
2579 EXESUF=$(exesuf $target_os)
2580 HOSTEXESUF=$(exesuf $host_os)
2581
2582 # set temporary file name
2583 : ${TMPDIR:=$TEMPDIR}
2584 : ${TMPDIR:=$TMP}
2585 : ${TMPDIR:=/tmp}
2586
2587 if ! check_cmd mktemp -u XXXXXX; then
2588     # simple replacement for missing mktemp
2589     # NOT SAFE FOR GENERAL USE
2590     mktemp(){
2591         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2592     }
2593 fi
2594
2595 tmpfile(){
2596     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2597         (set -C; exec > $tmp) 2>/dev/null ||
2598         die "Unable to create temporary file in $TMPDIR."
2599     append TMPFILES $tmp
2600     eval $1=$tmp
2601 }
2602
2603 trap 'rm -f -- $TMPFILES' EXIT
2604
2605 tmpfile TMPASM .asm
2606 tmpfile TMPC   .c
2607 tmpfile TMPCPP .cpp
2608 tmpfile TMPE   $EXESUF
2609 tmpfile TMPH   .h
2610 tmpfile TMPO   .o
2611 tmpfile TMPS   .S
2612 tmpfile TMPSH  .sh
2613 tmpfile TMPV   .ver
2614
2615 unset -f mktemp
2616
2617 chmod +x $TMPE
2618
2619 # make sure we can execute files in $TMPDIR
2620 cat > $TMPSH 2>> $logfile <<EOF
2621 #! /bin/sh
2622 EOF
2623 chmod +x $TMPSH >> $logfile 2>&1
2624 if ! $TMPSH >> $logfile 2>&1; then
2625     cat <<EOF
2626 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2627 variable to another directory and make sure that it is not mounted noexec.
2628 EOF
2629     die "Sanity test failed."
2630 fi
2631
2632 ccc_flags(){
2633     for flag; do
2634         case $flag in
2635             -std=c99)           echo -c99                       ;;
2636             -mcpu=*)            echo -arch ${flag#*=}           ;;
2637             -mieee)             echo -ieee                      ;;
2638             -O*|-fast)          echo $flag                      ;;
2639             -fno-math-errno)    echo -assume nomath_errno       ;;
2640             -g)                 echo -g3                        ;;
2641             -Wall)              echo -msg_enable level2         ;;
2642             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2643             -Wl,*)              echo $flag                      ;;
2644             -f*|-W*)                                            ;;
2645             *)                  echo $flag                      ;;
2646         esac
2647    done
2648 }
2649
2650 msvc_flags(){
2651     for flag; do
2652         case $flag in
2653             -fomit-frame-pointer) echo -Oy ;;
2654             -g)                   echo -Z7 ;;
2655             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2656                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2657                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2658                                        -wd4554 \
2659                                        -wd4996 -wd4273 ;;
2660             -std=c99)             ;;
2661             -fno-math-errno)      ;;
2662             -fno-common)          ;;
2663             -fno-signed-zeros)    ;;
2664             -fPIC)                ;;
2665             -mthumb)              ;;
2666             -march=*)             ;;
2667             -lz)                  echo zlib.lib ;;
2668             -lavifil32)           echo vfw32.lib ;;
2669             -lavicap32)           echo vfw32.lib user32.lib ;;
2670             -l*)                  echo ${flag#-l}.lib ;;
2671             *)                    echo $flag ;;
2672         esac
2673     done
2674 }
2675
2676 pgi_flags(){
2677     for flag; do
2678         case $flag in
2679             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2680             -fomit-frame-pointer) echo -Mnoframe ;;
2681             -g)                   echo -gopt ;;
2682             *)                    echo $flag ;;
2683         esac
2684     done
2685 }
2686
2687 suncc_flags(){
2688     for flag; do
2689         case $flag in
2690             -march=*|-mcpu=*)
2691                 case "${flag#*=}" in
2692                     native)                   echo -xtarget=native       ;;
2693                     v9|niagara)               echo -xarch=sparc          ;;
2694                     ultrasparc)               echo -xarch=sparcvis       ;;
2695                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2696                     i586|pentium)             echo -xchip=pentium        ;;
2697                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2698                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2699                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2700                     pentium4*)          echo -xtarget=pentium4           ;;
2701                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2702                     *-sse3)             echo -xarch=sse3                 ;;
2703                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2704                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2705                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2706                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2707                     bdver*)                   echo -xarch=avx            ;;
2708                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2709                     k8|opteron|athlon64|athlon-fx)
2710                                               echo -xarch=sse2a          ;;
2711                     athlon*)                  echo -xarch=pentium_proa   ;;
2712                 esac
2713                 ;;
2714             -std=c99)             echo -xc99              ;;
2715             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2716             -fPIC)                echo -KPIC -xcode=pic32 ;;
2717             -W*,*)                echo $flag              ;;
2718             -f*-*|-W*|-mimpure-text)                      ;;
2719             -shared)              echo -G                 ;;
2720             *)                    echo $flag              ;;
2721         esac
2722     done
2723 }
2724
2725 tms470_flags(){
2726     for flag; do
2727         case $flag in
2728             -march=*|-mcpu=*)
2729                 case "${flag#*=}" in
2730                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2731                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2732                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2733                     armv6*|arm11*)          echo -mv=6   ;;
2734                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2735                                             echo -mv=5e  ;;
2736                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2737                 esac
2738                 ;;
2739             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2740             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2741             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2742             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2743             -msoft-float)   echo --float_support=vfplib       ;;
2744             -O[0-3]|-mf=*)  echo $flag                        ;;
2745             -g)             echo -g -mn                       ;;
2746             -pds=*)         echo $flag                        ;;
2747             -D*|-I*)        echo $flag                        ;;
2748             --gcc|--abi=*)  echo $flag                        ;;
2749             -me)            echo $flag                        ;;
2750         esac
2751     done
2752 }
2753
2754 probe_cc(){
2755     pfx=$1
2756     _cc=$2
2757
2758     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2759     unset _ld_o _ldflags _ld_lib _ld_path
2760     unset _depflags _DEPCMD _DEPFLAGS
2761     _flags_filter=echo
2762
2763     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2764         _type=llvm_gcc
2765         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2766         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2767         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2768         _cflags_speed='-O3'
2769         _cflags_size='-Os'
2770     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2771         _type=gcc
2772         gcc_version=$($_cc --version | head -n1)
2773         gcc_basever=$($_cc -dumpversion)
2774         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2775         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2776         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2777         if ! $_cc -dumpversion | grep -q '^2\.'; then
2778             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2779         fi
2780         _cflags_speed='-O3'
2781         _cflags_size='-Os'
2782     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2783         _type=icc
2784         _ident=$($_cc --version | head -n1)
2785         _depflags='-MMD'
2786         _cflags_speed='-O3'
2787         _cflags_size='-Os'
2788         _cflags_noopt='-O1'
2789     elif $_cc -v 2>&1 | grep -q xlc; then
2790         _type=xlc
2791         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2792         _cflags_speed='-O5'
2793         _cflags_size='-O5 -qcompact'
2794     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2795         _type=ccc
2796         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2797         _DEPFLAGS='-M'
2798         _cflags_speed='-fast'
2799         _cflags_size='-O1'
2800         _flags_filter=ccc_flags
2801     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2802         test -d "$sysroot" || die "No valid sysroot specified."
2803         _type=armcc
2804         _ident=$($_cc --vsn | head -n1)
2805         armcc_conf="$PWD/armcc.conf"
2806         $_cc --arm_linux_configure                 \
2807              --arm_linux_config_file="$armcc_conf" \
2808              --configure_sysroot="$sysroot"        \
2809              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2810              die "Error creating armcc configuration file."
2811         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2812         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2813         as_default="${cross_prefix}gcc"
2814         _depflags='-MMD'
2815         _cflags_speed='-O3'
2816         _cflags_size='-Os'
2817     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2818         _type=tms470
2819         _ident=$($_cc -version | head -n1 | tr -s ' ')
2820         _flags='--gcc --abi=eabi -me'
2821         _cc_e='-ppl -fe=$@'
2822         _cc_o='-fe=$@'
2823         _depflags='-ppa -ppd=$(@:.o=.d)'
2824         _cflags_speed='-O3 -mf=5'
2825         _cflags_size='-O3 -mf=2'
2826         _flags_filter=tms470_flags
2827     elif $_cc -v 2>&1 | grep -q clang; then
2828         _type=clang
2829         _ident=$($_cc --version | head -n1)
2830         _depflags='-MMD'
2831         _cflags_speed='-O3'
2832         _cflags_size='-Os'
2833     elif $_cc -V 2>&1 | grep -q Sun; then
2834         _type=suncc
2835         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2836         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2837         _DEPFLAGS='-xM1 -xc99'
2838         _ldflags='-std=c99'
2839         _cflags_speed='-O5'
2840         _cflags_size='-O5 -xspace'
2841         _flags_filter=suncc_flags
2842     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2843         _type=pathscale
2844         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2845         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2846         _cflags_speed='-O2'
2847         _cflags_size='-Os'
2848         _flags_filter='filter_out -Wdisabled-optimization'
2849     elif $_cc -v 2>&1 | grep -q Open64; then
2850         _type=open64
2851         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2852         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2853         _cflags_speed='-O2'
2854         _cflags_size='-Os'
2855         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2856     elif $_cc -V 2>&1 | grep -q Portland; then
2857         _type=pgi
2858         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2859         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2860         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2861         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2862         _cflags_noopt="-O"
2863         _flags_filter=pgi_flags
2864     elif $_cc 2>&1 | grep -q Microsoft; then
2865         _type=msvc
2866         _ident=$($cc 2>&1 | head -n1)
2867         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2868         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2869         _cflags_speed="-O2"
2870         _cflags_size="-O1"
2871         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2872         if $_cc 2>&1 | grep -q Linker; then
2873             _ld_o='-out $@'
2874         else
2875             _ld_o='-Fe$@'
2876         fi
2877         _cc_o='-Fo $@'
2878         _cc_e='-P -Fi $@'
2879         _flags_filter=msvc_flags
2880         _ld_lib='lib%.a'
2881         _ld_path='-libpath:'
2882         _flags='-nologo'
2883         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2884         if [ $pfx = hostcc ]; then
2885             append _cflags -Dsnprintf=_snprintf
2886         fi
2887         disable stripping
2888     elif $_cc 2>&1 | grep -q Intel; then
2889         _type=icl
2890         _ident=$($cc 2>&1 | head -n1)
2891         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2892         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2893         _cflags_speed="-O2"
2894         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2895         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2896         if $_cc 2>&1 | grep -q Linker; then
2897             _ld_o='-out $@'
2898         else
2899             _ld_o='-Fe$@'
2900         fi
2901         _cc_o='-Fo $@'
2902         _cc_e='-P'
2903         _flags_filter=msvc_flags
2904         _ld_lib='lib%.a'
2905         _ld_path='-libpath:'
2906         # -Qdiag-error to make icl error when presented with certain unknown arguments
2907         _flags='-nologo -Qdiag-error:10157 -Qdiag-error:4044'
2908         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2909         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qstd=c99 -Qms0 -Qvec- -Qsimd- -GS'
2910         if [ $pfx = hostcc ]; then
2911             append _cflags -Dsnprintf=_snprintf
2912         fi
2913     fi
2914
2915     eval ${pfx}_type=\$_type
2916     eval ${pfx}_ident=\$_ident
2917 }
2918
2919 set_ccvars(){
2920     eval ${1}_C=\${_cc_c-\${${1}_C}}
2921     eval ${1}_E=\${_cc_e-\${${1}_E}}
2922     eval ${1}_O=\${_cc_o-\${${1}_O}}
2923
2924     if [ -n "$_depflags" ]; then
2925         eval ${1}_DEPFLAGS=\$_depflags
2926     else
2927         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2928         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2929         eval DEP${1}FLAGS=\$_flags
2930     fi
2931 }
2932
2933 probe_cc cc "$cc"
2934 cflags_filter=$_flags_filter
2935 cflags_speed=$_cflags_speed
2936 cflags_size=$_cflags_size
2937 cflags_noopt=$_cflags_noopt
2938 add_cflags $_flags $_cflags
2939 cc_ldflags=$_ldflags
2940 set_ccvars CC
2941
2942 probe_cc hostcc "$host_cc"
2943 host_cflags_filter=$_flags_filter
2944 add_host_cflags  $_flags $_cflags
2945 set_ccvars HOSTCC
2946
2947 test -n "$cc_type" && enable $cc_type ||
2948     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2949
2950 : ${as_default:=$cc}
2951 : ${dep_cc_default:=$cc}
2952 : ${ld_default:=$cc}
2953 : ${host_ld_default:=$host_cc}
2954 set_default ar as dep_cc ld host_ld
2955
2956 probe_cc as "$as"
2957 asflags_filter=$_flags_filter
2958 add_asflags $_flags $_cflags
2959 set_ccvars AS
2960
2961 probe_cc ld "$ld"
2962 ldflags_filter=$_flags_filter
2963 add_ldflags $_flags $_ldflags
2964 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2965 LD_O=${_ld_o-$LD_O}
2966 LD_LIB=${_ld_lib-$LD_LIB}
2967 LD_PATH=${_ld_path-$LD_PATH}
2968
2969 probe_cc hostld "$host_ld"
2970 host_ldflags_filter=$_flags_filter
2971 add_host_ldflags $_flags $_ldflags
2972 HOSTLD_O=${_ld_o-$HOSTLD_O}
2973
2974 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2975     probe_cc depcc "$dep_cc"
2976     CCDEP=${_DEPCMD:-$DEPCMD}
2977     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2978     DEPCCFLAGS=$_flags
2979 fi
2980
2981 if $ar 2>&1 | grep -q Microsoft; then
2982     arflags="-nologo"
2983     ar_o='-out:$@'
2984 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2985     arflags="rq"
2986     ar_o='$@'
2987 else
2988     arflags="rc"
2989     ar_o='$@'
2990 fi
2991
2992 add_cflags $extra_cflags
2993 add_cxxflags $extra_cxxflags
2994 add_asflags $extra_cflags
2995
2996 if test -n "$sysroot"; then
2997     case "$cc_type" in
2998         gcc|llvm_gcc|clang)
2999             add_cppflags --sysroot="$sysroot"
3000             add_ldflags --sysroot="$sysroot"
3001         ;;
3002         tms470)
3003             add_cppflags -I"$sysinclude"
3004             add_ldflags  --sysroot="$sysroot"
3005         ;;
3006     esac
3007 fi
3008
3009 if test "$cpu" = host; then
3010     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
3011
3012     case "$cc_type" in
3013         gcc|llvm_gcc)
3014             check_native(){
3015                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3016                 sed -n "/cc1.*$1=/{
3017                             s/.*$1=\\([^ ]*\\).*/\\1/
3018                             p
3019                             q
3020                         }" $TMPE
3021             }
3022             cpu=$(check_native -march || check_native -mcpu)
3023         ;;
3024     esac
3025
3026     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3027 fi
3028
3029 # Deal with common $arch aliases
3030 case "$arch" in
3031     aarch64|arm64)
3032         arch="aarch64"
3033     ;;
3034     arm*|iPad*)
3035         arch="arm"
3036     ;;
3037     mips*|IP*)
3038         arch="mips"
3039     ;;
3040     parisc*|hppa*)
3041         arch="parisc"
3042     ;;
3043     "Power Macintosh"|ppc*|powerpc*)
3044         arch="ppc"
3045     ;;
3046     s390|s390x)
3047         arch="s390"
3048     ;;
3049     sh4|sh)
3050         arch="sh4"
3051     ;;
3052     sun4u|sparc*)
3053         arch="sparc"
3054     ;;
3055     tilegx|tile-gx)
3056         arch="tilegx"
3057     ;;
3058     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3059         arch="x86"
3060     ;;
3061 esac
3062
3063 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3064 enable $arch
3065
3066 # Add processor-specific flags
3067 if enabled aarch64; then
3068
3069     case $cpu in
3070         armv*)
3071             cpuflags="-march=$cpu"
3072         ;;
3073         *)
3074             cpuflags="-mcpu=$cpu"
3075         ;;
3076     esac
3077
3078 elif enabled alpha; then
3079
3080     cpuflags="-mcpu=$cpu"
3081
3082 elif enabled arm; then
3083
3084     check_arm_arch() {
3085         check_cpp_condition stddef.h \
3086             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3087             $cpuflags
3088     }
3089
3090     probe_arm_arch() {
3091         if   check_arm_arch 4;        then echo armv4;
3092         elif check_arm_arch 4T;       then echo armv4t;
3093         elif check_arm_arch 5;        then echo armv5;
3094         elif check_arm_arch 5E;       then echo armv5e;
3095         elif check_arm_arch 5T;       then echo armv5t;
3096         elif check_arm_arch 5TE;      then echo armv5te;
3097         elif check_arm_arch 5TEJ;     then echo armv5te;
3098         elif check_arm_arch 6;        then echo armv6;
3099         elif check_arm_arch 6J;       then echo armv6j;
3100         elif check_arm_arch 6K;       then echo armv6k;
3101         elif check_arm_arch 6Z;       then echo armv6z;
3102         elif check_arm_arch 6ZK;      then echo armv6zk;
3103         elif check_arm_arch 6T2;      then echo armv6t2;
3104         elif check_arm_arch 7;        then echo armv7;
3105         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3106         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3107         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3108         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3109         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3110         fi
3111     }
3112
3113     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3114
3115     case $cpu in
3116         armv*)
3117             cpuflags="-march=$cpu"
3118             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3119         ;;
3120         *)
3121             cpuflags="-mcpu=$cpu"
3122             case $cpu in
3123                 cortex-a*)                               subarch=armv7a  ;;
3124                 cortex-r*)                               subarch=armv7r  ;;
3125                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3126                 arm11*)                                  subarch=armv6   ;;
3127                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3128                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3129                 *)                             subarch=$(probe_arm_arch) ;;
3130             esac
3131         ;;
3132     esac
3133
3134     case "$subarch" in
3135         armv5t*)    enable fast_clz                ;;
3136         armv[6-8]*) enable fast_clz fast_unaligned ;;
3137     esac
3138
3139 elif enabled avr32; then
3140
3141     case $cpu in
3142         ap7[02]0[0-2])
3143             subarch="avr32_ap"
3144             cpuflags="-mpart=$cpu"
3145         ;;
3146         ap)
3147             subarch="avr32_ap"
3148             cpuflags="-march=$cpu"
3149         ;;
3150         uc3[ab]*)
3151             subarch="avr32_uc"
3152             cpuflags="-mcpu=$cpu"
3153         ;;
3154         uc)
3155             subarch="avr32_uc"
3156             cpuflags="-march=$cpu"
3157         ;;
3158     esac
3159
3160 elif enabled bfin; then
3161
3162     cpuflags="-mcpu=$cpu"
3163
3164 elif enabled mips; then
3165
3166     cpuflags="-march=$cpu"
3167
3168     case $cpu in
3169         24kc)
3170             disable mipsfpu
3171             disable mipsdspr1
3172             disable mipsdspr2
3173         ;;
3174         24kf*)
3175             disable mipsdspr1
3176             disable mipsdspr2
3177         ;;
3178         24kec|34kc|1004kc)
3179             disable mipsfpu
3180             disable mipsdspr2
3181         ;;
3182         24kef*|34kf*|1004kf*)
3183             disable mipsdspr2
3184         ;;
3185         74kc)
3186             disable mipsfpu
3187         ;;
3188     esac
3189
3190 elif enabled ppc; then
3191
3192     case $(tolower $cpu) in
3193         601|ppc601|powerpc601)
3194             cpuflags="-mcpu=601"
3195             disable altivec
3196         ;;
3197         603*|ppc603*|powerpc603*)
3198             cpuflags="-mcpu=603"
3199             disable altivec
3200         ;;
3201         604*|ppc604*|powerpc604*)
3202             cpuflags="-mcpu=604"
3203             disable altivec
3204         ;;
3205         g3|75*|ppc75*|powerpc75*)
3206             cpuflags="-mcpu=750"
3207             disable altivec
3208         ;;
3209         g4|745*|ppc745*|powerpc745*)
3210             cpuflags="-mcpu=7450"
3211         ;;
3212         74*|ppc74*|powerpc74*)
3213             cpuflags="-mcpu=7400"
3214         ;;
3215         g5|970|ppc970|powerpc970)
3216             cpuflags="-mcpu=970"
3217         ;;
3218         power[3-7]*)
3219             cpuflags="-mcpu=$cpu"
3220         ;;
3221         cell)
3222             cpuflags="-mcpu=cell"
3223             enable ldbrx
3224         ;;
3225         e500mc)
3226             cpuflags="-mcpu=e500mc"
3227             disable altivec
3228         ;;
3229         e500v2)
3230             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3231             disable altivec
3232         ;;
3233         e500)
3234             cpuflags="-mcpu=8540 -mhard-float"
3235             disable altivec
3236         ;;
3237     esac
3238
3239 elif enabled sparc; then
3240
3241     case $cpu in
3242         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3243             cpuflags="-mcpu=$cpu"
3244             disable vis
3245         ;;
3246         ultrasparc*|niagara[234])
3247             cpuflags="-mcpu=$cpu"
3248         ;;
3249     esac
3250
3251 elif enabled x86; then
3252
3253     case $cpu in
3254         i[345]86|pentium)
3255             cpuflags="-march=$cpu"
3256             disable mmx
3257         ;;
3258         # targets that do NOT support nopl and conditional mov (cmov)
3259         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3260             cpuflags="-march=$cpu"
3261             disable i686
3262         ;;
3263         # targets that do support nopl and conditional mov (cmov)
3264         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3265             cpuflags="-march=$cpu"
3266             enable i686
3267             enable fast_cmov
3268         ;;
3269         # targets that do support conditional mov but on which it's slow
3270         pentium4|pentium4m|prescott|nocona)
3271             cpuflags="-march=$cpu"
3272             enable i686
3273             disable fast_cmov
3274         ;;
3275     esac
3276
3277 fi
3278
3279 if [ "$cpu" != generic ]; then
3280     add_cflags  $cpuflags
3281     add_asflags $cpuflags
3282 fi
3283
3284 # compiler sanity check
3285 check_exec <<EOF
3286 int main(void){ return 0; }
3287 EOF
3288 if test "$?" != 0; then
3289     echo "$cc is unable to create an executable file."
3290     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3291         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3292         echo "Only do this if you know what cross compiling means."
3293     fi
3294     die "C compiler test failed."
3295 fi
3296
3297 add_cppflags -D_ISOC99_SOURCE
3298 add_cxxflags -D__STDC_CONSTANT_MACROS
3299 check_cflags -std=c99
3300 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3301 #include <stdlib.h>
3302 EOF
3303 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3304 #include <stdlib.h>
3305 EOF
3306
3307 check_host_cflags -std=c99
3308 check_host_cflags -Wall
3309
3310 check_64bit(){
3311     arch32=$1
3312     arch64=$2
3313     expr=$3
3314     check_code cc "" "int test[2*($expr) - 1]" &&
3315         subarch=$arch64 || subarch=$arch32
3316 }
3317
3318 case "$arch" in
3319     aarch64|alpha|ia64)
3320         spic=$shared
3321     ;;
3322     mips)
3323         check_64bit mips mips64 '_MIPS_SIM > 1'
3324         spic=$shared
3325     ;;
3326     parisc)
3327         check_64bit parisc parisc64 'sizeof(void *) > 4'
3328         spic=$shared
3329     ;;
3330     ppc)
3331         check_64bit ppc ppc64 'sizeof(void *) > 4'
3332         spic=$shared
3333     ;;
3334     sparc)
3335         check_64bit sparc sparc64 'sizeof(void *) > 4'
3336         spic=$shared
3337     ;;
3338     x86)
3339         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3340         if test "$subarch" = "x86_64"; then
3341             spic=$shared
3342         fi
3343     ;;
3344     ppc)
3345         check_cc <<EOF && subarch="ppc64"
3346         int test[(int)sizeof(char*) - 7];
3347 EOF
3348     ;;
3349 esac
3350
3351 enable $subarch
3352 enabled spic && enable_weak pic
3353
3354 # OS specific
3355 case $target_os in
3356     haiku)
3357         prefix_default="/boot/common"
3358         network_extralibs="-lnetwork"
3359         host_libs=
3360         ;;
3361     sunos)
3362         FFSERVERLDFLAGS=""
3363         SHFLAGS='-shared -Wl,-h,$$(@F)'
3364         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3365         network_extralibs="-lsocket -lnsl"
3366         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3367         # When using suncc to build, the Solaris linker will mark
3368         # an executable with each instruction set encountered by
3369         # the Solaris assembler.  As our libraries contain their own
3370         # guards for processor-specific code, instead suppress
3371         # generation of the HWCAPS ELF section on Solaris x86 only.
3372         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3373         nm_default='nm -P -g'
3374         ;;
3375     netbsd)
3376         disable symver
3377         oss_indev_extralibs="-lossaudio"
3378         oss_outdev_extralibs="-lossaudio"
3379         enabled gcc || check_ldflags -Wl,-zmuldefs
3380         ;;
3381     openbsd|bitrig)
3382         disable symver
3383         SHFLAGS='-shared'
3384         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3385         SLIB_INSTALL_LINKS=
3386         oss_indev_extralibs="-lossaudio"
3387         oss_outdev_extralibs="-lossaudio"
3388         ;;
3389     dragonfly)
3390         disable symver
3391         ;;
3392     freebsd)
3393         ;;
3394     bsd/os)
3395         add_extralibs -lpoll -lgnugetopt
3396         strip="strip -d"
3397         ;;
3398     darwin)
3399         gas="gas-preprocessor.pl $cc"
3400         enabled ppc && add_asflags -force_cpusubtype_ALL
3401         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3402         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3403         strip="${strip} -x"
3404         add_ldflags -Wl,-dynamic,-search_paths_first
3405         SLIBSUF=".dylib"
3406         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3407         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3408         FFSERVERLDFLAGS=-Wl,-bind_at_load
3409         objformat="macho"
3410         enabled x86_64 && objformat="macho64"
3411         enabled_any pic shared ||
3412             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3413         ;;
3414     mingw32*)
3415         if test $target_os = "mingw32ce"; then
3416             disable network
3417         else
3418             target_os=mingw32
3419         fi
3420         LIBTARGET=i386
3421         if enabled x86_64; then
3422             LIBTARGET="i386:x86-64"
3423         elif enabled arm; then
3424             LIBTARGET=arm-wince
3425         fi
3426         check_ldflags -Wl,--nxcompat
3427         check_ldflags -Wl,--dynamicbase
3428         shlibdir_default="$bindir_default"
3429         SLIBPREF=""
3430         SLIBSUF=".dll"
3431         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3432         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3433         dlltool="${cross_prefix}dlltool"
3434         if check_cmd lib.exe -list; then
3435             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3436             if enabled x86_64; then
3437                 LIBTARGET=x64
3438             fi
3439         elif check_cmd $dlltool --version; then
3440             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3441         fi
3442         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3443         SLIB_INSTALL_LINKS=
3444         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3445         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3446         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3447         objformat="win32"
3448         ranlib=:
3449         enable dos_paths
3450         disable pic
3451         ;;
3452     win32|win64)
3453         if enabled shared; then
3454             # Link to the import library instead of the normal static library
3455             # for shared libs.
3456             LD_LIB='%.lib'
3457             # Cannot build shared and static libraries at the same time with
3458             # MSVC.
3459             disable static
3460         fi
3461         shlibdir_default="$bindir_default"
3462         SLIBPREF=""
3463         SLIBSUF=".dll"
3464         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3465         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3466         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3467         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3468         SLIB_INSTALL_LINKS=
3469         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3470         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3471         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3472         objformat="win32"
3473         ranlib=:
3474         enable dos_paths
3475         disable pic
3476         ;;
3477     cygwin*)
3478         target_os=cygwin
3479         shlibdir_default="$bindir_default"
3480         SLIBPREF="cyg"
3481         SLIBSUF=".dll"
3482         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3483         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3484         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3485         SLIB_INSTALL_LINKS=
3486         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3487         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3488         objformat="win32"
3489         enable dos_paths
3490         disable pic
3491         ;;
3492     *-dos|freedos|opendos)
3493         network_extralibs="-lsocket"
3494         objformat="coff"
3495         enable dos_paths
3496         add_cppflags -U__STRICT_ANSI__
3497         ;;
3498     linux)
3499         enable dv1394
3500         ;;
3501     irix*)
3502         target_os=irix
3503         ranlib="echo ignoring ranlib"
3504         ;;
3505     os/2*)
3506         strip="lxlite -CS"
3507         ln_s="cp -f"
3508         objformat="aout"
3509         add_cppflags -D_GNU_SOURCE
3510         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3511         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3512         FFSERVERLDFLAGS=""
3513         LIBSUF="_s.a"
3514         SLIBPREF=""
3515         SLIBSUF=".dll"
3516         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3517         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3518         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3519             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3520             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3521             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3522             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3523             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3524         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3525             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3526         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3527         enable dos_paths
3528         enable_weak os2threads
3529         ;;
3530     gnu/kfreebsd)
3531         add_cppflags -D_BSD_SOURCE
3532         ;;
3533     gnu)
3534         ;;
3535     qnx)
3536         add_cppflags -D_QNX_SOURCE
3537         network_extralibs="-lsocket"
3538         ;;
3539     symbian)
3540         SLIBSUF=".dll"
3541         enable dos_paths
3542         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3543         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3544         add_ldflags -Wl,--target1-abs,--no-undefined \
3545                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3546                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3547         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3548                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3549                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3550         ;;
3551     osf1)
3552         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3553         FFSERVERLDFLAGS=
3554         ;;
3555     minix)
3556         ;;
3557     plan9)
3558         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3559                      -D_REENTRANT_SOURCE        \
3560                      -D_RESEARCH_SOURCE         \
3561                      -DFD_SETSIZE=96            \
3562                      -DHAVE_SOCK_OPTS
3563         add_compat strtod.o strtod=avpriv_strtod
3564         network_extralibs='-lbsd'
3565         exeobjs=compat/plan9/main.o
3566         disable ffserver
3567         cp_f='cp'
3568         ;;
3569     none)
3570         ;;
3571     *)
3572         die "Unknown OS '$target_os'."
3573         ;;
3574 esac
3575
3576 # determine libc flavour
3577
3578 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3579 if check_cpp_condition features.h "defined __UCLIBC__"; then
3580     libc_type=uclibc
3581     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3582 elif check_cpp_condition features.h "defined __GLIBC__"; then
3583     libc_type=glibc
3584     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3585 # MinGW headers can be installed on Cygwin, so check for newlib first.
3586 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3587     libc_type=newlib
3588     add_cppflags -U__STRICT_ANSI__
3589 elif check_header _mingw.h; then
3590     libc_type=mingw
3591     check_cpp_condition _mingw.h \
3592         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3593             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3594         die "ERROR: MinGW runtime version must be >= 3.15."
3595     add_cppflags -U__STRICT_ANSI__
3596     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3597             __MINGW64_VERSION_MAJOR < 3"; then
3598         add_compat msvcrt/snprintf.o
3599         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3600     fi
3601 elif check_func_headers stdlib.h _get_doserrno; then
3602     libc_type=msvcrt
3603     add_compat strtod.o strtod=avpriv_strtod
3604     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3605                                  _snprintf=avpriv_snprintf  \
3606                                  vsnprintf=avpriv_vsnprintf
3607     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3608     # 0x601 by default unless something else is set by the user.
3609     # This can easily lead to us detecting functions only present
3610     # in such new versions and producing binaries requiring windows 7.0.
3611     # Therefore explicitly set the default to XP unless the user has
3612     # set something else on the command line.
3613     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3614 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3615     libc_type=klibc
3616 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3617     libc_type=bionic
3618     add_compat strtod.o strtod=avpriv_strtod
3619 fi
3620
3621 test -n "$libc_type" && enable $libc_type
3622
3623 # hacks for compiler/libc/os combinations
3624
3625 if enabled_all tms470 glibc; then
3626     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3627     add_cppflags -D__USER_LABEL_PREFIX__=
3628     add_cppflags -D__builtin_memset=memset
3629     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3630     add_cflags   -pds=48    # incompatible redefinition of macro
3631 fi
3632
3633 if enabled_all ccc glibc; then
3634     add_ldflags -Wl,-z,now  # calls to libots crash without this
3635 fi
3636
3637 esc(){
3638     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3639 }
3640
3641 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3642
3643 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3644
3645 set_default $PATHS_LIST
3646 set_default nm
3647
3648 # we need to build at least one lib type
3649 if ! enabled_any static shared; then
3650     cat <<EOF
3651 At least one library type must be built.
3652 Specify --enable-static to build the static libraries or --enable-shared to
3653 build the shared libraries as well. To only build the shared libraries specify
3654 --disable-static in addition to --enable-shared.
3655 EOF
3656     exit 1;
3657 fi
3658
3659 die_license_disabled() {
3660     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3661 }
3662
3663 die_license_disabled_gpl() {
3664     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3665 }
3666
3667 die_license_disabled gpl libcdio
3668 die_license_disabled gpl libutvideo
3669 die_license_disabled gpl libvidstab
3670 die_license_disabled gpl libx264
3671 die_license_disabled gpl libxavs
3672 die_license_disabled gpl libxvid
3673 die_license_disabled gpl x11grab
3674
3675 die_license_disabled nonfree libaacplus
3676 die_license_disabled nonfree libfaac
3677 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3678 enabled gpl && die_license_disabled_gpl nonfree openssl
3679
3680 die_license_disabled version3 libopencore_amrnb
3681 die_license_disabled version3 libopencore_amrwb
3682 die_license_disabled version3 libvo_aacenc
3683 die_license_disabled version3 libvo_amrwbenc
3684
3685 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3686
3687 disabled optimizations || check_cflags -fomit-frame-pointer
3688
3689 enable_weak_pic() {
3690     disabled pic && return
3691     enable pic
3692     add_cppflags -DPIC
3693     add_cflags   -fPIC
3694     add_asflags  -fPIC
3695 }
3696
3697 enabled pic && enable_weak_pic
3698
3699 check_cc <<EOF || die "Symbol mangling check failed."
3700 int ff_extern;
3701 EOF
3702 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3703 extern_prefix=${sym%%ff_extern*}
3704
3705 check_cc <<EOF && enable_weak inline_asm
3706 void foo(void) { __asm__ volatile ("" ::); }
3707 EOF
3708
3709 _restrict=
3710 for restrict_keyword in restrict __restrict__ __restrict; do
3711     check_cc <<EOF && _restrict=$restrict_keyword && break
3712 void foo(char * $restrict_keyword p);
3713 EOF
3714 done
3715
3716 check_cc <<EOF && enable attribute_packed
3717 struct { int x; } __attribute__((packed)) x;
3718 EOF
3719
3720 check_cc <<EOF && enable attribute_may_alias
3721 union { int x; } __attribute__((may_alias)) x;
3722 EOF
3723
3724 check_cc <<EOF || die "endian test failed"
3725 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3726 EOF
3727 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3728
3729 if enabled alpha; then
3730
3731     check_cflags -mieee
3732
3733 elif enabled arm; then
3734
3735     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3736 float func(float a, float b){ return a+b; }
3737 EOF
3738
3739     enabled thumb && check_cflags -mthumb || check_cflags -marm
3740     nogas=die
3741
3742     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3743         enable vfp_args
3744     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3745         case "${cross_prefix:-$cc}" in
3746             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3747             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3748 __asm__ (".eabi_attribute 28, 1");
3749 int main(void) { return 0; }
3750 EOF
3751         esac
3752         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3753     fi
3754
3755     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3756     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3757     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3758     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3759     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3760     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3761
3762     [ $target_os = linux ] ||
3763         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3764             $ARCH_EXT_LIST_ARM
3765
3766     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3767     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3768
3769     enabled_all armv6t2 shared !pic && enable_weak_pic
3770
3771 elif enabled mips; then
3772
3773     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3774     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3775      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3776     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3777      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3778     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3779      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3780     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3781      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3782
3783 elif enabled parisc; then
3784
3785     if enabled gcc; then
3786         case $($cc -dumpversion) in
3787             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3788         esac
3789     fi
3790
3791 elif enabled ppc; then
3792
3793     enable local_aligned_8 local_aligned_16
3794
3795     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3796     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3797     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3798     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3799
3800     # AltiVec flags: The FSF version of GCC differs from the Apple version
3801     if enabled altivec; then
3802         nogas=warn
3803         check_cflags -maltivec -mabi=altivec &&
3804         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3805         check_cflags -faltivec
3806
3807         # check if our compiler supports Motorola AltiVec C API
3808         check_cc <<EOF || disable altivec
3809 $inc_altivec_h
3810 int main(void) {
3811     vector signed int v1 = (vector signed int) { 0 };
3812     vector signed int v2 = (vector signed int) { 1 };
3813     v1 = vec_add(v1, v2);
3814     return 0;
3815 }
3816 EOF
3817
3818         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3819     fi
3820
3821 elif enabled sparc; then
3822
3823     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3824
3825 elif enabled x86; then
3826
3827     check_builtin rdtsc    intrin.h   "__rdtsc()"
3828     check_builtin mm_empty mmintrin.h "_mm_empty()"
3829
3830     enable local_aligned_8 local_aligned_16
3831
3832     # check whether EBP is available on x86
3833     # As 'i' is stored on the stack, this program will crash
3834     # if the base pointer is used to access it because the
3835     # base pointer is cleared in the inline assembly code.
3836     check_exec_crash <<EOF && enable ebp_available
3837 volatile int i=0;
3838 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3839 return i;
3840 EOF
3841
3842     # check whether EBX is available on x86
3843     check_inline_asm ebx_available '""::"b"(0)' &&
3844         check_inline_asm ebx_available '"":::"%ebx"'
3845
3846     # check whether xmm clobbers are supported
3847     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3848
3849     # check whether binutils is new enough to compile SSSE3/MMXEXT
3850     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3851     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3852
3853     if ! disabled_any asm mmx yasm; then
3854         if check_cmd $yasmexe --version; then
3855             enabled x86_64 && yasm_extra="-m amd64"
3856             yasm_debug="-g dwarf2"
3857         elif check_cmd nasm -v; then
3858             yasmexe=nasm
3859             yasm_debug="-g -F dwarf"
3860             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3861         fi
3862
3863         YASMFLAGS="-f $objformat $yasm_extra"
3864         enabled pic               && append YASMFLAGS "-DPIC"
3865         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3866         case "$objformat" in
3867             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3868         esac
3869
3870         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3871             die "yasm not found, use --disable-yasm for a crippled build"
3872         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3873         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3874         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3875     fi
3876
3877     case "$cpu" in
3878         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3879             disable fast_clz
3880         ;;
3881     esac
3882
3883 fi
3884
3885 if enabled asm; then
3886     as=${gas:=$as}
3887     check_as <<EOF && enable gnu_as || \
3888         $nogas "GNU assembler not found, install gas-preprocessor"
3889 .macro m n
3890 \n: .int 0
3891 .endm
3892 m x
3893 EOF
3894 fi
3895
3896 check_ldflags -Wl,--as-needed
3897
3898 if check_func dlopen; then
3899     ldl=
3900 elif check_func dlopen -ldl; then
3901     ldl=-ldl
3902 fi
3903
3904 if ! disabled network; then
3905     check_type "sys/types.h sys/socket.h" socklen_t
3906     check_type netdb.h "struct addrinfo"
3907     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3908     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3909     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3910     check_type netinet/in.h "struct sockaddr_in6"
3911     check_type poll.h "struct pollfd"
3912     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3913     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3914     check_type netinet/sctp.h "struct sctp_event_subscribe"
3915     check_func getaddrinfo $network_extralibs
3916     check_func getservbyport $network_extralibs
3917     # Prefer arpa/inet.h over winsock2
3918     if check_header arpa/inet.h ; then
3919         check_func closesocket
3920     elif check_header winsock2.h ; then
3921         check_func_headers winsock2.h closesocket -lws2 &&
3922             network_extralibs="-lws2" ||
3923         { check_func_headers winsock2.h closesocket -lws2_32 &&
3924             network_extralibs="-lws2_32"; }
3925         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3926         check_type ws2tcpip.h socklen_t
3927         check_type ws2tcpip.h "struct addrinfo"
3928         check_type ws2tcpip.h "struct group_source_req"
3929         check_type ws2tcpip.h "struct ip_mreq_source"
3930         check_type ws2tcpip.h "struct ipv6_mreq"
3931         check_type winsock2.h "struct pollfd"
3932         check_type ws2tcpip.h "struct sockaddr_in6"
3933         check_type ws2tcpip.h "struct sockaddr_storage"
3934         check_struct winsock2.h "struct sockaddr" sa_len
3935     else
3936         disable network
3937     fi
3938 fi
3939
3940 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3941 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3942
3943 check_func  access
3944 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3945 check_func  fcntl
3946 check_func  fork
3947 check_func_headers stdlib.h getenv
3948 check_func  gethrtime
3949 check_func  getopt
3950 check_func  getrusage
3951 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3952 check_func  gettimeofday
3953 check_func  inet_aton $network_extralibs
3954 check_func  isatty
3955 check_func  localtime_r
3956 check_func  ${malloc_prefix}memalign            && enable memalign
3957 check_func  mkstemp
3958 check_func  mmap
3959 check_func  mprotect
3960 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3961 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3962 check_func  setrlimit
3963 check_func  strerror_r
3964 check_func  sched_getaffinity
3965 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3966 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3967 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3968 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3969 check_func  sysconf
3970 check_func  sysctl
3971 check_func  usleep
3972 check_func_headers conio.h kbhit
3973 check_func_headers windows.h PeekNamedPipe
3974 check_func_headers io.h setmode
3975 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3976 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3977 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3978 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3979 check_func_headers windows.h GetProcessAffinityMask
3980 check_func_headers windows.h GetProcessTimes
3981 check_func_headers windows.h GetSystemTimeAsFileTime
3982 check_func_headers windows.h MapViewOfFile
3983 check_func_headers windows.h SetConsoleTextAttribute
3984 check_func_headers windows.h Sleep
3985 check_func_headers windows.h VirtualAlloc
3986 check_func_headers glob.h glob
3987 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
3988
3989 check_header cl/cl.h
3990 check_header direct.h
3991 check_header dlfcn.h
3992 check_header dxva.h
3993 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3994 check_header io.h
3995 check_header libcrystalhd/libcrystalhd_if.h
3996 check_header malloc.h
3997 check_header poll.h
3998 check_header sys/mman.h
3999 check_header sys/param.h
4000 check_header sys/resource.h
4001 check_header sys/select.h
4002 check_header sys/time.h
4003 check_header termios.h
4004 check_header unistd.h
4005 check_header vdpau/vdpau.h
4006 check_header vdpau/vdpau_x11.h
4007 check_header VideoDecodeAcceleration/VDADecoder.h
4008 check_header windows.h
4009 check_header X11/extensions/XvMClib.h
4010 check_header asm/types.h
4011
4012 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4013 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4014
4015 if ! disabled w32threads && ! enabled pthreads; then
4016     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4017 fi
4018
4019 # check for some common methods of building with pthread support
4020 # do this before the optional library checks as some of them require pthreads
4021 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4022     enable pthreads
4023     if check_func pthread_create; then
4024         :
4025     elif check_func pthread_create -pthread; then
4026         add_cflags -pthread
4027         add_extralibs -pthread
4028     elif check_func pthread_create -pthreads; then
4029         add_cflags -pthreads
4030         add_extralibs -pthreads
4031     elif check_func pthread_create -lpthreadGC2; then
4032         add_extralibs -lpthreadGC2
4033     elif ! check_lib pthread.h pthread_create -lpthread; then
4034         disable pthreads
4035     fi
4036 fi
4037
4038 for thread in $THREADS_LIST; do