Merge commit 'e08c946c6860a78b0c479551d5f6735361160cbd'
[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   --enable-vaapi           enable VAAPI code
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-openal          enable OpenAL 1.1 capture support [no]
240   --enable-opencl          enable OpenCL code
241   --enable-openssl         enable openssl [no]
242   --enable-x11grab         enable X11 grabbing [no]
243   --disable-zlib           disable zlib [autodetect]
244
245 Advanced options (experts only):
246   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
247   --enable-cross-compile   assume a cross-compiler is used
248   --sysroot=PATH           root of cross-build tree
249   --sysinclude=PATH        location of cross-build system headers
250   --target-os=OS           compiler targets OS [$target_os]
251   --target-exec=CMD        command to run executables on target
252   --target-path=DIR        path to view of build directory on target
253   --toolchain=NAME         set tool defaults according to NAME
254   --nm=NM                  use nm tool NM [$nm_default]
255   --ar=AR                  use archive tool AR [$ar_default]
256   --as=AS                  use assembler AS [$as_default]
257   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
258   --cc=CC                  use C compiler CC [$cc_default]
259   --cxx=CXX                use C compiler CXX [$cxx_default]
260   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
261   --ld=LD                  use linker LD [$ld_default]
262   --host-cc=HOSTCC         use host C compiler HOSTCC
263   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
264   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
265   --host-ld=HOSTLD         use host linker HOSTLD
266   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
267   --host-libs=HLIBS        use libs HLIBS when linking for host
268   --host-os=OS             compiler host OS [$target_os]
269   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
270   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
271   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
272   --extra-libs=ELIBS       add ELIBS [$ELIBS]
273   --extra-version=STRING   version string suffix []
274   --optflags=OPTFLAGS      override optimization-related compiler flags
275   --build-suffix=SUFFIX    library name suffix []
276   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
277   --progs-suffix=SUFFIX    program name suffix []
278   --arch=ARCH              select architecture [$arch]
279   --cpu=CPU                select the minimum required CPU (affects
280                            instruction selection, may crash on older CPUs)
281   --enable-pic             build position-independent code
282   --enable-sram            allow use of on-chip SRAM
283   --enable-thumb           compile for Thumb instruction set
284   --disable-symver         disable symbol versioning
285   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
286   --disable-safe-bitstream-reader
287                            disable buffer boundary checking in bitreaders
288                            (faster, but may crash)
289   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
290   --enable-lto             use link-time optimization
291
292 Optimization options (experts only):
293   --disable-asm            disable all assembler optimizations
294   --disable-altivec        disable AltiVec optimizations
295   --disable-amd3dnow       disable 3DNow! optimizations
296   --disable-amd3dnowext    disable 3DNow! extended optimizations
297   --disable-mmx            disable MMX optimizations
298   --disable-mmxext         disable MMXEXT optimizations
299   --disable-sse            disable SSE optimizations
300   --disable-sse2           disable SSE2 optimizations
301   --disable-sse3           disable SSE3 optimizations
302   --disable-ssse3          disable SSSE3 optimizations
303   --disable-sse4           disable SSE4 optimizations
304   --disable-sse42          disable SSE4.2 optimizations
305   --disable-avx            disable AVX optimizations
306   --disable-fma4           disable FMA4 optimizations
307   --disable-armv5te        disable armv5te optimizations
308   --disable-armv6          disable armv6 optimizations
309   --disable-armv6t2        disable armv6t2 optimizations
310   --disable-vfp            disable VFP optimizations
311   --disable-neon           disable NEON optimizations
312   --disable-vis            disable VIS optimizations
313   --disable-inline-asm     disable use of inline assembler
314   --disable-yasm           disable use of yasm assembler
315   --disable-mips32r2       disable MIPS32R2 optimizations
316   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
317   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
318   --disable-mipsfpu        disable floating point MIPS optimizations
319   --disable-fast-unaligned consider unaligned accesses slow
320
321 Developer options (useful when working on FFmpeg itself):
322   --disable-debug          disable debugging symbols
323   --enable-debug=LEVEL     set the debug level [$debuglevel]
324   --disable-optimizations  disable compiler optimizations
325   --enable-extra-warnings  enable more compiler warnings
326   --disable-stripping      disable stripping of executables and shared libraries
327   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
328                            2 causes a slowdown at runtime.
329   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
330   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
331                            leaks and errors, using the specified valgrind binary.
332                            Cannot be combined with --target-exec
333   --enable-ftrapv          Trap arithmetic overflows
334   --samples=PATH           location of test samples for FATE, if not set use
335                            \$FATE_SAMPLES at make invocation time.
336   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
337                            should be used only for debugging purposes)
338   --enable-random          randomly enable/disable components
339   --disable-random
340   --enable-random=LIST     randomly enable/disable specific components or
341   --disable-random=LIST    component groups. LIST is a comma-separated list
342                            of NAME[:PROB] entries where NAME is a component
343                            (group) and PROB the probability associated with
344                            NAME (default 0.5).
345   --random-seed=VALUE      seed value for --enable/disable-random
346
347 NOTE: Object files are built at the place where configure is launched.
348 EOF
349   exit 0
350 }
351
352 quotes='""'
353
354 log(){
355     echo "$@" >> $logfile
356 }
357
358 log_file(){
359     log BEGIN $1
360     pr -n -t $1 >> $logfile
361     log END $1
362 }
363
364 echolog(){
365     log "$@"
366     echo "$@"
367 }
368
369 warn(){
370     log "WARNING: $*"
371     WARNINGS="${WARNINGS}WARNING: $*\n"
372 }
373
374 die(){
375     echolog "$@"
376     cat <<EOF
377
378 If you think configure made a mistake, make sure you are using the latest
379 version from Git.  If the latest version fails, report the problem to the
380 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
381 EOF
382     if disabled logging; then
383         cat <<EOF
384 Rerun configure with logging enabled (do not use --disable-logging), and
385 include the log this produces with your report.
386 EOF
387     else
388         cat <<EOF
389 Include the log file "$logfile" produced by configure as this will help
390 solving the problem.
391 EOF
392     fi
393     exit 1
394 }
395
396 # Avoid locale weirdness, besides we really just want to translate ASCII.
397 toupper(){
398     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
399 }
400
401 tolower(){
402     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
403 }
404
405 c_escape(){
406     echo "$*" | sed 's/["\\]/\\\0/g'
407 }
408
409 sh_quote(){
410     v=$(echo "$1" | sed "s/'/'\\\\''/g")
411     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
412     echo "$v"
413 }
414
415 cleanws(){
416     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
417 }
418
419 filter(){
420     pat=$1
421     shift
422     for v; do
423         eval "case $v in $pat) echo $v ;; esac"
424     done
425 }
426
427 filter_out(){
428     pat=$1
429     shift
430     for v; do
431         eval "case $v in $pat) ;; *) echo $v ;; esac"
432     done
433 }
434
435 map(){
436     m=$1
437     shift
438     for v; do eval $m; done
439 }
440
441 add_suffix(){
442     suffix=$1
443     shift
444     for v; do echo ${v}${suffix}; done
445 }
446
447 set_all(){
448     value=$1
449     shift
450     for var in $*; do
451         eval $var=$value
452     done
453 }
454
455 set_weak(){
456     value=$1
457     shift
458     for var; do
459         eval : \${$var:=$value}
460     done
461 }
462
463 sanitize_var_name(){
464     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
465 }
466
467 set_safe(){
468     var=$1
469     shift
470     eval $(sanitize_var_name "$var")='$*'
471 }
472
473 get_safe(){
474     eval echo \$$(sanitize_var_name "$1")
475 }
476
477 pushvar(){
478     for pvar in $*; do
479         eval level=\${${pvar}_level:=0}
480         eval ${pvar}_${level}="\$$pvar"
481         eval ${pvar}_level=$(($level+1))
482     done
483 }
484
485 popvar(){
486     for pvar in $*; do
487         eval level=\${${pvar}_level:-0}
488         test $level = 0 && continue
489         eval level=$(($level-1))
490         eval $pvar="\${${pvar}_${level}}"
491         eval ${pvar}_level=$level
492         eval unset ${pvar}_${level}
493     done
494 }
495
496 enable(){
497     set_all yes $*
498 }
499
500 disable(){
501     set_all no $*
502 }
503
504 enable_weak(){
505     set_weak yes $*
506 }
507
508 disable_weak(){
509     set_weak no $*
510 }
511
512 enable_safe(){
513     for var; do
514         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
515     done
516 }
517
518 disable_safe(){
519     for var; do
520         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
521     done
522 }
523
524 do_enable_deep(){
525     for var; do
526         enabled $var && continue
527         eval sel="\$${var}_select"
528         eval sgs="\$${var}_suggest"
529         pushvar var sgs
530         enable_deep $sel
531         popvar sgs
532         enable_deep_weak $sgs
533         popvar var
534     done
535 }
536
537 enable_deep(){
538     do_enable_deep $*
539     enable $*
540 }
541
542 enable_deep_weak(){
543     for var; do
544         disabled $var && continue
545         pushvar var
546         do_enable_deep $var
547         popvar var
548         enable_weak $var
549     done
550 }
551
552 enabled(){
553     test "${1#!}" = "$1" && op== || op=!=
554     eval test "x\$${1#!}" $op "xyes"
555 }
556
557 disabled(){
558     test "${1#!}" = "$1" && op== || op=!=
559     eval test "x\$${1#!}" $op "xno"
560 }
561
562 enabled_all(){
563     for opt; do
564         enabled $opt || return 1
565     done
566 }
567
568 disabled_all(){
569     for opt; do
570         disabled $opt || return 1
571     done
572 }
573
574 enabled_any(){
575     for opt; do
576         enabled $opt && return 0
577     done
578 }
579
580 disabled_any(){
581     for opt; do
582         disabled $opt && return 0
583     done
584     return 1
585 }
586
587 set_default(){
588     for opt; do
589         eval : \${$opt:=\$${opt}_default}
590     done
591 }
592
593 is_in(){
594     value=$1
595     shift
596     for var in $*; do
597         [ $var = $value ] && return 0
598     done
599     return 1
600 }
601
602 do_check_deps(){
603     for cfg; do
604         cfg="${cfg#!}"
605         enabled ${cfg}_checking && die "Circular dependency for $cfg."
606         disabled ${cfg}_checking && continue
607         enable ${cfg}_checking
608         append allopts $cfg
609
610         eval dep_all="\$${cfg}_deps"
611         eval dep_any="\$${cfg}_deps_any"
612         eval dep_sel="\$${cfg}_select"
613         eval dep_sgs="\$${cfg}_suggest"
614         eval dep_ifa="\$${cfg}_if"
615         eval dep_ifn="\$${cfg}_if_any"
616
617         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
618         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
619         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
620
621         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
622         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
623         enabled_all  $dep_all || disable $cfg
624         enabled_any  $dep_any || disable $cfg
625         disabled_any $dep_sel && disable $cfg
626
627         if enabled $cfg; then
628             enable_deep $dep_sel
629             enable_deep_weak $dep_sgs
630         fi
631
632         disable ${cfg}_checking
633     done
634 }
635
636 check_deps(){
637     unset allopts
638
639     do_check_deps "$@"
640
641     for cfg in $allopts; do
642         enabled $cfg || continue
643         eval dep_extralibs="\$${cfg}_extralibs"
644         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
645     done
646 }
647
648 print_config(){
649     pfx=$1
650     files=$2
651     shift 2
652     map 'eval echo "$v \${$v:-no}"' "$@" |
653     awk "BEGIN { split(\"$files\", files) }
654         {
655             c = \"$pfx\" toupper(\$1);
656             v = \$2;
657             sub(/yes/, 1, v);
658             sub(/no/,  0, v);
659             for (f in files) {
660                 file = files[f];
661                 if (file ~ /\\.h\$/) {
662                     printf(\"#define %s %d\\n\", c, v) >>file;
663                 } else if (file ~ /\\.asm\$/) {
664                     printf(\"%%define %s %d\\n\", c, v) >>file;
665                 } else if (file ~ /\\.mak\$/) {
666                     n = -v ? \"\" : \"!\";
667                     printf(\"%s%s=yes\\n\", n, c) >>file;
668                 } else if (file ~ /\\.texi\$/) {
669                     pre = -v ? \"\" : \"@c \";
670                     yesno = \$2;
671                     c2 = tolower(c);
672                     gsub(/_/, \"-\", c2);
673                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf};
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 add_cppflags(){
700     append CPPFLAGS "$@"
701 }
702
703 add_cflags(){
704     append CFLAGS $($cflags_filter "$@")
705 }
706
707 add_cxxflags(){
708     append CXXFLAGS $($cflags_filter "$@")
709 }
710
711 add_asflags(){
712     append ASFLAGS $($asflags_filter "$@")
713 }
714
715 add_ldflags(){
716     append LDFLAGS $($ldflags_filter "$@")
717 }
718
719 add_extralibs(){
720     prepend extralibs $($ldflags_filter "$@")
721 }
722
723 add_host_cppflags(){
724     append host_cppflags "$@"
725 }
726
727 add_host_cflags(){
728     append host_cflags $($host_cflags_filter "$@")
729 }
730
731 add_host_ldflags(){
732     append host_ldflags $($host_ldflags_filter "$@")
733 }
734
735 add_compat(){
736     append compat_objs $1
737     shift
738     map 'add_cppflags -D$v' "$@"
739 }
740
741 check_cmd(){
742     log "$@"
743     "$@" >> $logfile 2>&1
744 }
745
746 cc_o(){
747     eval printf '%s\\n' $CC_O
748 }
749
750 cc_e(){
751     eval printf '%s\\n' $CC_E
752 }
753
754 check_cc(){
755     log check_cc "$@"
756     cat > $TMPC
757     log_file $TMPC
758     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
759 }
760
761 check_cxx(){
762     log check_cxx "$@"
763     cat > $TMPCPP
764     log_file $TMPCPP
765     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
766 }
767
768 check_cpp(){
769     log check_cpp "$@"
770     cat > $TMPC
771     log_file $TMPC
772     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
773 }
774
775 as_o(){
776     eval printf '%s\\n' $AS_O
777 }
778
779 check_as(){
780     log check_as "$@"
781     cat > $TMPS
782     log_file $TMPS
783     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
784 }
785
786 check_inline_asm(){
787     log check_inline_asm "$@"
788     name="$1"
789     code="$2"
790     shift 2
791     disable $name
792     check_cc "$@" <<EOF && enable $name
793 void foo(void){ __asm__ volatile($code); }
794 EOF
795 }
796
797 check_insn(){
798     log check_insn "$@"
799     check_inline_asm ${1}_inline "\"$2\""
800     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
801 }
802
803 check_yasm(){
804     log check_yasm "$@"
805     echo "$1" > $TMPS
806     log_file $TMPS
807     shift 1
808     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
809 }
810
811 ld_o(){
812     eval printf '%s\\n' $LD_O
813 }
814
815 check_ld(){
816     log check_ld "$@"
817     type=$1
818     shift 1
819     flags=$(filter_out '-l*|*.so' $@)
820     libs=$(filter '-l*|*.so' $@)
821     check_$type $($cflags_filter $flags) || return
822     flags=$($ldflags_filter $flags)
823     libs=$($ldflags_filter $libs)
824     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
825 }
826
827 check_code(){
828     log check_code "$@"
829     check=$1
830     headers=$2
831     code=$3
832     shift 3
833     {
834         for hdr in $headers; do
835             echo "#include <$hdr>"
836         done
837         echo "int main(void) { $code; return 0; }"
838     } | check_$check "$@"
839 }
840
841 check_cppflags(){
842     log check_cppflags "$@"
843     check_cc "$@" <<EOF && append CPPFLAGS "$@"
844 int x;
845 EOF
846 }
847
848 check_cflags(){
849     log check_cflags "$@"
850     set -- $($cflags_filter "$@")
851     check_cc "$@" <<EOF && append CFLAGS "$@"
852 int x;
853 EOF
854 }
855
856 check_cxxflags(){
857     log check_cxxflags "$@"
858     set -- $($cflags_filter "$@")
859     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
860 int x;
861 EOF
862 }
863
864 test_ldflags(){
865     log test_ldflags "$@"
866     check_ld "cc" "$@" <<EOF
867 int main(void){ return 0; }
868 EOF
869 }
870
871 check_ldflags(){
872     log check_ldflags "$@"
873     test_ldflags "$@" && add_ldflags "$@"
874 }
875
876 check_header(){
877     log check_header "$@"
878     header=$1
879     shift
880     disable_safe $header
881     check_cpp "$@" <<EOF && enable_safe $header
882 #include <$header>
883 int x;
884 EOF
885 }
886
887 check_func(){
888     log check_func "$@"
889     func=$1
890     shift
891     disable $func
892     check_ld "cc" "$@" <<EOF && enable $func
893 extern int $func();
894 int main(void){ $func(); }
895 EOF
896 }
897
898 check_mathfunc(){
899     log check_mathfunc "$@"
900     func=$1
901     narg=$2
902     shift 2
903     test $narg = 2 && args="f, g" || args="f"
904     disable $func
905     check_ld "cc" "$@" <<EOF && enable $func
906 #include <math.h>
907 float foo(float f, float g) { return $func($args); }
908 int main(void){ return (int) foo; }
909 EOF
910 }
911
912 check_func_headers(){
913     log check_func_headers "$@"
914     headers=$1
915     funcs=$2
916     shift 2
917     {
918         for hdr in $headers; do
919             echo "#include <$hdr>"
920         done
921         for func in $funcs; do
922             echo "long check_$func(void) { return (long) $func; }"
923         done
924         echo "int main(void) { return 0; }"
925     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
926 }
927
928 check_class_headers_cpp(){
929     log check_class_headers_cpp "$@"
930     headers=$1
931     classes=$2
932     shift 2
933     {
934         for hdr in $headers; do
935             echo "#include <$hdr>"
936         done
937         echo "int main(void) { "
938         i=1
939         for class in $classes; do
940             echo "$class obj$i;"
941             i=$(expr $i + 1)
942         done
943         echo "return 0; }"
944     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
945 }
946
947 check_cpp_condition(){
948     log check_cpp_condition "$@"
949     header=$1
950     condition=$2
951     shift 2
952     check_cpp "$@" <<EOF
953 #include <$header>
954 #if !($condition)
955 #error "unsatisfied condition: $condition"
956 #endif
957 EOF
958 }
959
960 check_lib(){
961     log check_lib "$@"
962     header="$1"
963     func="$2"
964     shift 2
965     check_header $header && check_func $func "$@" && add_extralibs "$@"
966 }
967
968 check_lib2(){
969     log check_lib2 "$@"
970     headers="$1"
971     funcs="$2"
972     shift 2
973     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
974 }
975
976 check_lib_cpp(){
977     log check_lib_cpp "$@"
978     headers="$1"
979     classes="$2"
980     shift 2
981     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
982 }
983
984 check_pkg_config(){
985     log check_pkg_config "$@"
986     pkg="$1"
987     headers="$2"
988     funcs="$3"
989     shift 3
990     $pkg_config --exists $pkg 2>/dev/null || return
991     pkg_cflags=$($pkg_config --cflags $pkg)
992     pkg_libs=$($pkg_config --libs $pkg)
993     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
994         set_safe ${pkg}_cflags $pkg_cflags   &&
995         set_safe ${pkg}_libs   $pkg_libs
996 }
997
998 check_exec(){
999     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1000 }
1001
1002 check_exec_crash(){
1003     code=$(cat)
1004
1005     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1006     # are safe but may not be available everywhere.  Thus we use
1007     # raise(SIGTERM) instead.  The check is run in a subshell so we
1008     # can redirect the "Terminated" message from the shell.  SIGBUS
1009     # is not defined by standard C so it is used conditionally.
1010
1011     (check_exec "$@") >> $logfile 2>&1 <<EOF
1012 #include <signal.h>
1013 static void sighandler(int sig){
1014     raise(SIGTERM);
1015 }
1016 int func(void){
1017     $code
1018 }
1019 int (*func_ptr)(void) = func;
1020 int main(void){
1021     signal(SIGILL, sighandler);
1022     signal(SIGFPE, sighandler);
1023     signal(SIGSEGV, sighandler);
1024 #ifdef SIGBUS
1025     signal(SIGBUS, sighandler);
1026 #endif
1027     return func_ptr();
1028 }
1029 EOF
1030 }
1031
1032 check_type(){
1033     log check_type "$@"
1034     headers=$1
1035     type=$2
1036     shift 2
1037     disable_safe "$type"
1038     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1039 }
1040
1041 check_struct(){
1042     log check_struct "$@"
1043     headers=$1
1044     struct=$2
1045     member=$3
1046     shift 3
1047     disable_safe "${struct}_${member}"
1048     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1049         enable_safe "${struct}_${member}"
1050 }
1051
1052 check_builtin(){
1053     log check_builtin "$@"
1054     name=$1
1055     headers=$2
1056     builtin=$3
1057     shift 3
1058     disable "$name"
1059     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1060 }
1061
1062 require(){
1063     name="$1"
1064     header="$2"
1065     func="$3"
1066     shift 3
1067     check_lib $header $func "$@" || die "ERROR: $name not found"
1068 }
1069
1070 require2(){
1071     name="$1"
1072     headers="$2"
1073     func="$3"
1074     shift 3
1075     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1076 }
1077
1078 require_cpp(){
1079     name="$1"
1080     headers="$2"
1081     classes="$3"
1082     shift 3
1083     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1084 }
1085
1086 require_pkg_config(){
1087     pkg="$1"
1088     check_pkg_config "$@" || die "ERROR: $pkg not found"
1089     add_cflags    $(get_safe ${pkg}_cflags)
1090     add_extralibs $(get_safe ${pkg}_libs)
1091 }
1092
1093 hostcc_o(){
1094     eval printf '%s\\n' $HOSTCC_O
1095 }
1096
1097 check_host_cc(){
1098     log check_host_cc "$@"
1099     cat > $TMPC
1100     log_file $TMPC
1101     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1102 }
1103
1104 check_host_cppflags(){
1105     log check_host_cppflags "$@"
1106     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1107 int x;
1108 EOF
1109 }
1110
1111 check_host_cflags(){
1112     log check_host_cflags "$@"
1113     set -- $($host_cflags_filter "$@")
1114     check_host_cc "$@" <<EOF && append host_cflags "$@"
1115 int x;
1116 EOF
1117 }
1118
1119 apply(){
1120     file=$1
1121     shift
1122     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1123 }
1124
1125 cp_if_changed(){
1126     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1127     mkdir -p "$(dirname $2)"
1128     $cp_f "$1" "$2"
1129 }
1130
1131 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1132 # system-dependent things.
1133
1134 COMPONENT_LIST="
1135     bsfs
1136     decoders
1137     demuxers
1138     encoders
1139     filters
1140     hwaccels
1141     indevs
1142     muxers
1143     outdevs
1144     parsers
1145     protocols
1146 "
1147
1148 EXTERNAL_LIBRARY_LIST="
1149     avisynth
1150     bzlib
1151     crystalhd
1152     fontconfig
1153     frei0r
1154     gnutls
1155     iconv
1156     libaacplus
1157     libass
1158     libbluray
1159     libcaca
1160     libcdio
1161     libcelt
1162     libdc1394
1163     libfaac
1164     libfdk_aac
1165     libflite
1166     libfreetype
1167     libgsm
1168     libiec61883
1169     libilbc
1170     libmodplug
1171     libmp3lame
1172     libnut
1173     libopencore_amrnb
1174     libopencore_amrwb
1175     libopencv
1176     libopenjpeg
1177     libopus
1178     libpulse
1179     libquvi
1180     librtmp
1181     libschroedinger
1182     libshine
1183     libsoxr
1184     libspeex
1185     libstagefright_h264
1186     libtheora
1187     libtwolame
1188     libutvideo
1189     libv4l2
1190     libvidstab
1191     libvo_aacenc
1192     libvo_amrwbenc
1193     libvorbis
1194     libvpx
1195     libx264
1196     libxavs
1197     libxvid
1198     openal
1199     opencl
1200     openssl
1201     x11grab
1202     zlib
1203 "
1204
1205 DOCUMENT_LIST="
1206     doc
1207     htmlpages
1208     manpages
1209     podpages
1210     txtpages
1211 "
1212
1213 HWACCEL_LIST="
1214     dxva2
1215     vaapi
1216     vda
1217     vdpau
1218 "
1219
1220 LIBRARY_LIST="
1221     avcodec
1222     avdevice
1223     avfilter
1224     avformat
1225     avresample
1226     avutil
1227     postproc
1228     swresample
1229     swscale
1230 "
1231
1232 PROGRAM_LIST="
1233     ffplay
1234     ffprobe
1235     ffserver
1236     ffmpeg
1237 "
1238
1239 CONFIG_LIST="
1240     $COMPONENT_LIST
1241     $DOCUMENT_LIST
1242     $EXTERNAL_LIBRARY_LIST
1243     $HWACCEL_LIST
1244     $LIBRARY_LIST
1245     $PROGRAM_LIST
1246     dct
1247     dwt
1248     error_resilience
1249     fast_unaligned
1250     fft
1251     ftrapv
1252     gpl
1253     gray
1254     hardcoded_tables
1255     incompatible_fork_abi
1256     lsp
1257     lzo
1258     mdct
1259     memalign_hack
1260     memory_poisoning
1261     network
1262     nonfree
1263     pic
1264     rdft
1265     runtime_cpudetect
1266     safe_bitstream_reader
1267     shared
1268     small
1269     sram
1270     static
1271     swscale_alpha
1272     thumb
1273     version3
1274     xmm_clobber_test
1275 "
1276
1277 THREADS_LIST='
1278     pthreads
1279     w32threads
1280     os2threads
1281 '
1282
1283 ATOMICS_LIST='
1284     atomics_gcc
1285     atomics_suncc
1286     atomics_win32
1287 '
1288
1289 ARCH_LIST='
1290     aarch64
1291     alpha
1292     arm
1293     avr32
1294     avr32_ap
1295     avr32_uc
1296     bfin
1297     ia64
1298     m68k
1299     mips
1300     mips64
1301     parisc
1302     ppc
1303     ppc64
1304     s390
1305     sh4
1306     sparc
1307     sparc64
1308     tilegx
1309     tilepro
1310     tomi
1311     x86
1312     x86_32
1313     x86_64
1314 '
1315
1316 ARCH_EXT_LIST_ARM='
1317     armv5te
1318     armv6
1319     armv6t2
1320     neon
1321     vfp
1322     vfpv3
1323 '
1324
1325 ARCH_EXT_LIST_X86='
1326     amd3dnow
1327     amd3dnowext
1328     avx
1329     fma4
1330     mmx
1331     mmxext
1332     sse
1333     sse2
1334     sse3
1335     sse4
1336     sse42
1337     ssse3
1338 '
1339
1340 ARCH_EXT_LIST="
1341     $ARCH_EXT_LIST_ARM
1342     $ARCH_EXT_LIST_X86
1343     altivec
1344     ppc4xx
1345     vis
1346     mipsfpu
1347     mips32r2
1348     mipsdspr1
1349     mipsdspr2
1350 "
1351
1352 HAVE_LIST_CMDLINE='
1353     inline_asm
1354     symver
1355     yasm
1356 '
1357
1358 HAVE_LIST_PUB='
1359     bigendian
1360     fast_unaligned
1361     incompatible_fork_abi
1362 '
1363
1364 MATH_FUNCS="
1365     atanf
1366     atan2f
1367     cbrt
1368     cbrtf
1369     cosf
1370     exp2
1371     exp2f
1372     expf
1373     isinf
1374     isnan
1375     ldexpf
1376     llrint
1377     llrintf
1378     log2
1379     log2f
1380     log10f
1381     lrint
1382     lrintf
1383     powf
1384     rint
1385     round
1386     roundf
1387     sinf
1388     trunc
1389     truncf
1390 "
1391
1392 HAVE_LIST="
1393     $ARCH_EXT_LIST
1394     $(add_suffix _external $ARCH_EXT_LIST)
1395     $(add_suffix _inline   $ARCH_EXT_LIST)
1396     $HAVE_LIST_CMDLINE
1397     $HAVE_LIST_PUB
1398     $THREADS_LIST
1399     $ATOMICS_LIST
1400     $MATH_FUNCS
1401     access
1402     aligned_malloc
1403     aligned_stack
1404     alsa_asoundlib_h
1405     altivec_h
1406     arpa_inet_h
1407     asm_mod_q
1408     asm_mod_y
1409     asm_types_h
1410     atomic_cas_ptr
1411     atomics_native
1412     attribute_may_alias
1413     attribute_packed
1414     cdio_paranoia_h
1415     cdio_paranoia_paranoia_h
1416     CL_cl_h
1417     clock_gettime
1418     closesocket
1419     cmov
1420     CommandLineToArgvW
1421     cpunop
1422     CryptGenRandom
1423     dcbzl
1424     dev_bktr_ioctl_bt848_h
1425     dev_bktr_ioctl_meteor_h
1426     dev_ic_bt8xx_h
1427     dev_video_bktr_ioctl_bt848_h
1428     dev_video_meteor_ioctl_meteor_h
1429     direct_h
1430     dlfcn_h
1431     dlopen
1432     dos_paths
1433     dxva_h
1434     ebp_available
1435     ebx_available
1436     fast_64bit
1437     fast_clz
1438     fast_cmov
1439     fcntl
1440     fork
1441     getaddrinfo
1442     gethrtime
1443     getopt
1444     GetProcessAffinityMask
1445     GetProcessMemoryInfo
1446     GetProcessTimes
1447     GetSystemTimeAsFileTime
1448     getrusage
1449     getservbyport
1450     gettimeofday
1451     glob
1452     gnu_as
1453     gsm_h
1454     ibm_asm
1455     inet_aton
1456     io_h
1457     isatty
1458     jack_port_get_latency_range
1459     kbhit
1460     ldbrx
1461     libdc1394_1
1462     libdc1394_2
1463     local_aligned_16
1464     local_aligned_8
1465     localtime_r
1466     loongson
1467     lzo1x_999_compress
1468     machine_ioctl_bt848_h
1469     machine_ioctl_meteor_h
1470     machine_rw_barrier
1471     makeinfo
1472     malloc_h
1473     MapViewOfFile
1474     memalign
1475     MemoryBarrier
1476     mkstemp
1477     mm_empty
1478     mmap
1479     mprotect
1480     msvcrt
1481     nanosleep
1482     openjpeg_1_5_openjpeg_h
1483     PeekNamedPipe
1484     perl
1485     pod2man
1486     poll_h
1487     posix_memalign
1488     pthread_cancel
1489     rdtsc
1490     rsync_contimeout
1491     sched_getaffinity
1492     sdl
1493     SetConsoleTextAttribute
1494     setmode
1495     setrlimit
1496     Sleep
1497     sndio_h
1498     socklen_t
1499     soundcard_h
1500     strerror_r
1501     struct_addrinfo
1502     struct_group_source_req
1503     struct_ip_mreq_source
1504     struct_ipv6_mreq
1505     struct_pollfd
1506     struct_rusage_ru_maxrss
1507     struct_sctp_event_subscribe
1508     struct_sockaddr_in6
1509     struct_sockaddr_sa_len
1510     struct_sockaddr_storage
1511     struct_v4l2_frmivalenum_discrete
1512     symver_asm_label
1513     symver_gnu_asm
1514     sync_val_compare_and_swap
1515     sysconf
1516     sysctl
1517     sys_mman_h
1518     sys_param_h
1519     sys_resource_h
1520     sys_select_h
1521     sys_soundcard_h
1522     sys_time_h
1523     sys_videoio_h
1524     termios_h
1525     texi2html
1526     threads
1527     unistd_h
1528     usleep
1529     vfp_args
1530     VirtualAlloc
1531     windows_h
1532     winsock2_h
1533     xform_asm
1534     xmm_clobbers
1535 "
1536
1537 # options emitted with CONFIG_ prefix but not available on the command line
1538 CONFIG_EXTRA="
1539     aandcttables
1540     ac3dsp
1541     audio_frame_queue
1542     dsputil
1543     frame_thread_encoder
1544     gcrypt
1545     golomb
1546     gplv3
1547     h264chroma
1548     h264dsp
1549     h264pred
1550     h264qpel
1551     hpeldsp
1552     huffman
1553     lgplv3
1554     lpc
1555     mpegaudio
1556     mpegaudiodsp
1557     mpegvideo
1558     mpegvideoenc
1559     nettle
1560     rangecoder
1561     rtpdec
1562     rtpenc_chain
1563     sinewin
1564     videodsp
1565     vp3dsp
1566 "
1567
1568 CMDLINE_SELECT="
1569     $ARCH_EXT_LIST
1570     $CONFIG_LIST
1571     $HAVE_LIST_CMDLINE
1572     $THREADS_LIST
1573     asm
1574     cross_compile
1575     debug
1576     extra_warnings
1577     logging
1578     lto
1579     optimizations
1580     stripping
1581 "
1582
1583 PATHS_LIST='
1584     bindir
1585     datadir
1586     incdir
1587     libdir
1588     mandir
1589     prefix
1590     shlibdir
1591 '
1592
1593 CMDLINE_SET="
1594     $PATHS_LIST
1595     ar
1596     arch
1597     as
1598     assert_level
1599     build_suffix
1600     cc
1601     cpu
1602     cross_prefix
1603     cxx
1604     dep_cc
1605     extra_version
1606     host_cc
1607     host_cflags
1608     host_ld
1609     host_ldflags
1610     host_libs
1611     host_os
1612     install
1613     ld
1614     logfile
1615     malloc_prefix
1616     nm
1617     optflags
1618     pkg_config
1619     progs_suffix
1620     random_seed
1621     samples
1622     strip
1623     sysinclude
1624     sysroot
1625     target_exec
1626     target_os
1627     target_path
1628     toolchain
1629     valgrind
1630     yasmexe
1631 "
1632
1633 CMDLINE_APPEND="
1634     extra_cflags
1635     extra_cxxflags
1636     host_cppflags
1637 "
1638
1639 # code dependency declarations
1640
1641 # architecture extensions
1642
1643 armv5te_deps="arm"
1644 armv6_deps="arm"
1645 armv6t2_deps="arm"
1646 neon_deps="arm"
1647 vfp_deps="arm"
1648 vfpv3_deps="vfp"
1649
1650 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1651
1652 mipsfpu_deps="mips"
1653 mips32r2_deps="mips"
1654 mipsdspr1_deps="mips"
1655 mipsdspr2_deps="mips"
1656
1657 altivec_deps="ppc"
1658 ppc4xx_deps="ppc"
1659
1660 vis_deps="sparc"
1661
1662 x86_64_suggest="cmov fast_cmov"
1663
1664 amd3dnow_deps="mmx"
1665 amd3dnowext_deps="amd3dnow"
1666 mmx_deps="x86"
1667 mmxext_deps="mmx"
1668 sse_deps="mmxext"
1669 sse2_deps="sse"
1670 sse3_deps="sse2"
1671 ssse3_deps="sse3"
1672 sse4_deps="ssse3"
1673 sse42_deps="sse4"
1674 avx_deps="sse42"
1675 fma4_deps="avx"
1676
1677 mmx_external_deps="yasm"
1678 mmx_inline_deps="inline_asm"
1679 mmx_suggest="mmx_external mmx_inline"
1680
1681 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1682     eval dep=\$${ext}_deps
1683     eval ${ext}_external_deps='"${dep}_external"'
1684     eval ${ext}_inline_deps='"${dep}_inline"'
1685     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1686 done
1687
1688 aligned_stack_if_any="ppc x86"
1689 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1690 fast_clz_if_any="alpha avr32 mips ppc x86"
1691 fast_unaligned_if_any="ppc x86"
1692
1693 inline_asm_deps="!tms470"
1694 need_memalign="altivec neon sse"
1695
1696 symver_if_any="symver_asm_label symver_gnu_asm"
1697
1698 log2_deps="!msvcrt"
1699
1700 # subsystems
1701 dct_select="rdft"
1702 error_resilience_select="dsputil"
1703 frame_thread_encoder_deps="encoders threads"
1704 lpc_select="dsputil"
1705 mdct_select="fft"
1706 rdft_select="fft"
1707 mpegaudio_select="mpegaudiodsp"
1708 mpegaudiodsp_select="dct"
1709 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1710 mpegvideoenc_select="mpegvideo"
1711
1712 # decoders / encoders
1713 aac_decoder_select="mdct sinewin"
1714 aac_encoder_select="audio_frame_queue mdct sinewin"
1715 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1716 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1717 ac3_encoder_select="mdct ac3dsp dsputil"
1718 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1719 alac_encoder_select="lpc"
1720 als_decoder_select="dsputil"
1721 amrnb_decoder_select="lsp"
1722 amrwb_decoder_select="lsp"
1723 amv_decoder_select="dsputil hpeldsp"
1724 amv_encoder_select="aandcttables"
1725 ape_decoder_select="dsputil"
1726 asv1_decoder_select="dsputil"
1727 asv1_encoder_select="dsputil"
1728 asv2_decoder_select="dsputil"
1729 asv2_encoder_select="dsputil"
1730 atrac1_decoder_select="mdct sinewin"
1731 atrac3_decoder_select="mdct"
1732 bink_decoder_select="dsputil hpeldsp"
1733 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1734 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1735 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1736 cllc_decoder_select="dsputil"
1737 comfortnoise_encoder_select="lpc"
1738 cook_decoder_select="dsputil mdct sinewin"
1739 cscd_decoder_select="lzo"
1740 cscd_decoder_suggest="zlib"
1741 dca_decoder_select="mdct"
1742 dirac_decoder_select="dsputil dwt golomb videodsp"
1743 dnxhd_decoder_select="dsputil"
1744 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1745 dvvideo_decoder_select="dsputil"
1746 dvvideo_encoder_select="dsputil"
1747 dxa_decoder_select="zlib"
1748 eac3_decoder_select="ac3_decoder"
1749 eac3_encoder_select="ac3_encoder"
1750 eamad_decoder_select="aandcttables dsputil mpegvideo"
1751 eatgq_decoder_select="aandcttables"
1752 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1753 exr_decoder_select="zlib"
1754 ffv1_decoder_select="dsputil golomb rangecoder"
1755 ffv1_encoder_select="dsputil rangecoder"
1756 ffvhuff_decoder_select="dsputil"
1757 ffvhuff_encoder_select="dsputil huffman"
1758 flac_decoder_select="golomb"
1759 flac_encoder_select="dsputil golomb lpc"
1760 flashsv_decoder_select="zlib"
1761 flashsv_encoder_select="zlib"
1762 flashsv2_encoder_select="zlib"
1763 flashsv2_decoder_select="zlib"
1764 flv_decoder_select="h263_decoder"
1765 flv_encoder_select="h263_encoder"
1766 fourxm_decoder_select="dsputil"
1767 fraps_decoder_select="dsputil huffman"
1768 g729_decoder_select="dsputil"
1769 h261_decoder_select="error_resilience mpegvideo"
1770 h261_encoder_select="aandcttables mpegvideoenc"
1771 h263_decoder_select="error_resilience h263_parser mpegvideo"
1772 h263_encoder_select="aandcttables mpegvideoenc"
1773 h263i_decoder_select="h263_decoder"
1774 h263p_encoder_select="h263_encoder"
1775 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1776 h264_decoder_suggest="error_resilience"
1777 huffyuv_decoder_select="dsputil"
1778 huffyuv_encoder_select="dsputil huffman"
1779 iac_decoder_select="dsputil fft mdct sinewin"
1780 imc_decoder_select="dsputil fft mdct sinewin"
1781 indeo3_decoder_select="hpeldsp"
1782 interplay_video_decoder_select="hpeldsp"
1783 jpegls_decoder_select="dsputil golomb hpeldsp"
1784 jpegls_encoder_select="golomb"
1785 jv_decoder_select="dsputil"
1786 lagarith_decoder_select="dsputil"
1787 ljpeg_encoder_select="aandcttables mpegvideoenc"
1788 loco_decoder_select="golomb"
1789 mdec_decoder_select="dsputil error_resilience mpegvideo"
1790 mimic_decoder_select="dsputil hpeldsp"
1791 mjpeg_decoder_select="dsputil hpeldsp"
1792 mjpegb_decoder_select="dsputil hpeldsp"
1793 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1794 mlp_decoder_select="dsputil mlp_parser"
1795 motionpixels_decoder_select="dsputil"
1796 mp1_decoder_select="mpegaudio"
1797 mp1float_decoder_select="mpegaudio"
1798 mp2_decoder_select="mpegaudio"
1799 mp2float_decoder_select="mpegaudio"
1800 mp3_decoder_select="mpegaudio"
1801 mp3adu_decoder_select="mpegaudio"
1802 mp3adufloat_decoder_select="mpegaudio"
1803 mp3float_decoder_select="mpegaudio"
1804 mp3on4_decoder_select="mpegaudio"
1805 mp3on4float_decoder_select="mpegaudio"
1806 mpc7_decoder_select="dsputil mpegaudiodsp"
1807 mpc8_decoder_select="dsputil mpegaudiodsp"
1808 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1809 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1810 mpeg1video_decoder_select="error_resilience mpegvideo"
1811 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1812 mpeg2video_decoder_select="error_resilience mpegvideo"
1813 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1814 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1815 mpeg4_encoder_select="h263_encoder"
1816 msmpeg4v1_decoder_select="h263_decoder"
1817 msmpeg4v2_decoder_select="h263_decoder"
1818 msmpeg4v2_encoder_select="h263_encoder"
1819 msmpeg4v3_decoder_select="h263_decoder"
1820 msmpeg4v3_encoder_select="h263_encoder"
1821 mss2_decoder_select="error_resilience vc1_decoder"
1822 mxpeg_decoder_select="dsputil hpeldsp"
1823 nellymoser_decoder_select="mdct sinewin"
1824 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1825 nuv_decoder_select="dsputil lzo"
1826 png_decoder_select="zlib"
1827 png_encoder_select="dsputil zlib"
1828 prores_decoder_select="dsputil"
1829 prores_encoder_select="dsputil"
1830 qcelp_decoder_select="lsp"
1831 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1832 ra_144_encoder_select="audio_frame_queue lpc"
1833 ralf_decoder_select="golomb"
1834 rtjpeg_decoder_select="dsputil"
1835 rv10_decoder_select="error_resilience h263_decoder"
1836 rv10_encoder_select="h263_encoder"
1837 rv20_decoder_select="error_resilience h263_decoder"
1838 rv20_encoder_select="h263_encoder"
1839 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1840 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1841 shorten_decoder_select="golomb"
1842 sipr_decoder_select="lsp"
1843 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1844 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1845 sonic_decoder_select="golomb"
1846 sonic_encoder_select="golomb"
1847 sonic_ls_encoder_select="golomb"
1848 sp5x_decoder_select="dsputil hpeldsp"
1849 svq1_decoder_select="hpeldsp"
1850 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1851 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1852 svq3_decoder_suggest="error_resilience zlib"
1853 tak_decoder_select="dsputil"
1854 theora_decoder_select="vp3_decoder"
1855 tiff_decoder_suggest="zlib"
1856 tiff_encoder_suggest="zlib"
1857 thp_decoder_select="dsputil hpeldsp"
1858 truehd_decoder_select="mlp_parser"
1859 truemotion2_decoder_select="dsputil"
1860 truespeech_decoder_select="dsputil"
1861 tscc_decoder_select="zlib"
1862 twinvq_decoder_select="mdct lsp sinewin"
1863 utvideo_decoder_select="dsputil"
1864 utvideo_encoder_select="dsputil huffman"
1865 vble_decoder_select="dsputil"
1866 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1867 vc1image_decoder_select="vc1_decoder"
1868 vorbis_decoder_select="mdct"
1869 vorbis_encoder_select="mdct"
1870 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1871 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1872 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1873 vp6a_decoder_select="vp6_decoder"
1874 vp6f_decoder_select="vp6_decoder"
1875 vp8_decoder_select="h264pred videodsp"
1876 wmapro_decoder_select="mdct sinewin"
1877 wmav1_decoder_select="mdct sinewin"
1878 wmav1_encoder_select="mdct sinewin"
1879 wmav2_decoder_select="mdct sinewin"
1880 wmav2_encoder_select="mdct sinewin"
1881 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1882 wmv1_decoder_select="h263_decoder"
1883 wmv1_encoder_select="h263_encoder"
1884 wmv2_decoder_select="h263_decoder videodsp"
1885 wmv2_encoder_select="h263_encoder"
1886 wmv3_decoder_select="vc1_decoder"
1887 wmv3image_decoder_select="wmv3_decoder"
1888 zerocodec_decoder_select="zlib"
1889 zlib_decoder_select="zlib"
1890 zlib_encoder_select="zlib"
1891 zmbv_decoder_select="zlib"
1892 zmbv_encoder_select="zlib"
1893
1894 # hardware accelerators
1895 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1896 dxva2_deps="dxva2api_h"
1897 vaapi_deps="va_va_h"
1898 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1899 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1900 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1901
1902 h263_vaapi_hwaccel_deps="vaapi"
1903 h263_vaapi_hwaccel_select="h263_decoder"
1904 h263_vdpau_hwaccel_deps="vdpau"
1905 h263_vdpau_hwaccel_select="h263_decoder"
1906 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1907 h264_dxva2_hwaccel_deps="dxva2"
1908 h264_dxva2_hwaccel_select="h264_decoder"
1909 h264_vaapi_hwaccel_deps="vaapi"
1910 h264_vaapi_hwaccel_select="h264_decoder"
1911 h264_vda_decoder_deps="vda"
1912 h264_vda_decoder_select="h264_decoder"
1913 h264_vda_hwaccel_deps="vda"
1914 h264_vda_hwaccel_select="h264_decoder"
1915 h264_vdpau_decoder_deps="vdpau"
1916 h264_vdpau_decoder_select="h264_decoder"
1917 h264_vdpau_hwaccel_deps="vdpau"
1918 h264_vdpau_hwaccel_select="h264_decoder"
1919 mpeg_vdpau_decoder_deps="vdpau"
1920 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1921 mpeg1_vdpau_decoder_deps="vdpau"
1922 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1923 mpeg1_vdpau_hwaccel_deps="vdpau"
1924 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1925 mpeg2_crystalhd_decoder_select="crystalhd"
1926 mpeg2_dxva2_hwaccel_deps="dxva2"
1927 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1928 mpeg2_vaapi_hwaccel_deps="vaapi"
1929 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1930 mpeg2_vdpau_hwaccel_deps="vdpau"
1931 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1932 mpeg4_crystalhd_decoder_select="crystalhd"
1933 mpeg4_vaapi_hwaccel_deps="vaapi"
1934 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1935 mpeg4_vdpau_decoder_deps="vdpau"
1936 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1937 mpeg4_vdpau_hwaccel_deps="vdpau"
1938 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1939 msmpeg4_crystalhd_decoder_select="crystalhd"
1940 vc1_crystalhd_decoder_select="crystalhd"
1941 vc1_dxva2_hwaccel_deps="dxva2"
1942 vc1_dxva2_hwaccel_select="vc1_decoder"
1943 vc1_vaapi_hwaccel_deps="vaapi"
1944 vc1_vaapi_hwaccel_select="vc1_decoder"
1945 vc1_vdpau_decoder_deps="vdpau"
1946 vc1_vdpau_decoder_select="vc1_decoder"
1947 vc1_vdpau_hwaccel_deps="vdpau"
1948 vc1_vdpau_hwaccel_select="vc1_decoder"
1949 wmv3_crystalhd_decoder_select="crystalhd"
1950 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1951 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1952 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1953 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1954
1955 # parsers
1956 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1957 mpeg4video_parser_select="error_resilience mpegvideo"
1958 mpegvideo_parser_select="error_resilience mpegvideo"
1959 vc1_parser_select="mpegvideo"
1960
1961 # external libraries
1962 libaacplus_encoder_deps="libaacplus"
1963 libcelt_decoder_deps="libcelt"
1964 libfaac_encoder_deps="libfaac"
1965 libfaac_encoder_select="audio_frame_queue"
1966 libfdk_aac_encoder_deps="libfdk_aac"
1967 libfdk_aac_encoder_select="audio_frame_queue"
1968 libgsm_decoder_deps="libgsm"
1969 libgsm_encoder_deps="libgsm"
1970 libgsm_ms_decoder_deps="libgsm"
1971 libgsm_ms_encoder_deps="libgsm"
1972 libilbc_decoder_deps="libilbc"
1973 libilbc_encoder_deps="libilbc"
1974 libmodplug_demuxer_deps="libmodplug"
1975 libmp3lame_encoder_deps="libmp3lame"
1976 libmp3lame_encoder_select="audio_frame_queue"
1977 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1978 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1979 libopencore_amrnb_encoder_select="audio_frame_queue"
1980 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1981 libopenjpeg_decoder_deps="libopenjpeg"
1982 libopenjpeg_encoder_deps="libopenjpeg"
1983 libopus_decoder_deps="libopus"
1984 libopus_encoder_deps="libopus"
1985 libopus_encoder_select="audio_frame_queue"
1986 libquvi_demuxer_deps="libquvi"
1987 libschroedinger_decoder_deps="libschroedinger"
1988 libschroedinger_encoder_deps="libschroedinger"
1989 libshine_encoder_deps="libshine"
1990 libshine_encoder_select="audio_frame_queue"
1991 libspeex_decoder_deps="libspeex"
1992 libspeex_encoder_deps="libspeex"
1993 libspeex_encoder_select="audio_frame_queue"
1994 libstagefright_h264_decoder_deps="libstagefright_h264"
1995 libtheora_encoder_deps="libtheora"
1996 libtwolame_encoder_deps="libtwolame"
1997 libvo_aacenc_encoder_deps="libvo_aacenc"
1998 libvo_aacenc_encoder_select="audio_frame_queue"
1999 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2000 libvorbis_decoder_deps="libvorbis"
2001 libvorbis_encoder_deps="libvorbis"
2002 libvorbis_encoder_select="audio_frame_queue"
2003 libvpx_vp8_decoder_deps="libvpx"
2004 libvpx_vp8_encoder_deps="libvpx"
2005 libvpx_vp9_decoder_deps="libvpx"
2006 libvpx_vp9_encoder_deps="libvpx"
2007 libx264_encoder_deps="libx264"
2008 libx264rgb_encoder_deps="libx264"
2009 libxavs_encoder_deps="libxavs"
2010 libxvid_encoder_deps="libxvid"
2011 libutvideo_decoder_deps="libutvideo"
2012 libutvideo_encoder_deps="libutvideo"
2013
2014 # demuxers / muxers
2015 ac3_demuxer_select="ac3_parser"
2016 asf_stream_muxer_select="asf_muxer"
2017 avisynth_demuxer_deps="avisynth"
2018 dirac_demuxer_select="dirac_parser"
2019 dts_demuxer_select="dca_parser"
2020 dtshd_demuxer_select="dca_parser"
2021 eac3_demuxer_select="ac3_parser"
2022 f4v_muxer_select="mov_muxer"
2023 flac_demuxer_select="flac_parser"
2024 ipod_muxer_select="mov_muxer"
2025 ismv_muxer_select="mov_muxer"
2026 libnut_demuxer_deps="libnut"
2027 libnut_muxer_deps="libnut"
2028 matroska_audio_muxer_select="matroska_muxer"
2029 matroska_demuxer_suggest="bzlib lzo zlib"
2030 mov_demuxer_suggest="zlib"
2031 mov_muxer_select="rtpenc_chain"
2032 mp3_demuxer_select="mpegaudio_parser"
2033 mp4_muxer_select="mov_muxer"
2034 mpegts_muxer_select="adts_muxer latm_muxer"
2035 mpegtsraw_demuxer_select="mpegts_demuxer"
2036 mxf_d10_muxer_select="mxf_muxer"
2037 ogg_demuxer_select="golomb"
2038 psp_muxer_select="mov_muxer"
2039 rtp_demuxer_select="sdp_demuxer"
2040 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2041 rtsp_demuxer_select="http_protocol rtpdec"
2042 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2043 sap_demuxer_select="sdp_demuxer"
2044 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2045 sdp_demuxer_select="rtpdec"
2046 smoothstreaming_muxer_select="ismv_muxer"
2047 spdif_muxer_select="aac_parser"
2048 tak_demuxer_select="tak_parser"
2049 tg2_muxer_select="mov_muxer"
2050 tgp_muxer_select="mov_muxer"
2051 vobsub_demuxer_select="mpegps_demuxer"
2052 w64_demuxer_deps="wav_demuxer"
2053 w64_muxer_deps="wav_muxer"
2054
2055 # indevs / outdevs
2056 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2057 alsa_outdev_deps="alsa_asoundlib_h"
2058 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2059 caca_outdev_deps="libcaca"
2060 dshow_indev_deps="IBaseFilter"
2061 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2062 dv1394_indev_deps="dv1394 dv_demuxer"
2063 fbdev_indev_deps="linux_fb_h"
2064 iec61883_indev_deps="libiec61883"
2065 jack_indev_deps="jack_jack_h sem_timedwait"
2066 lavfi_indev_deps="avfilter"
2067 libcdio_indev_deps="libcdio"
2068 libdc1394_indev_deps="libdc1394"
2069 libv4l2_indev_deps="libv4l2"
2070 openal_indev_deps="openal"
2071 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2072 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2073 pulse_indev_deps="libpulse"
2074 sdl_outdev_deps="sdl"
2075 sndio_indev_deps="sndio_h"
2076 sndio_outdev_deps="sndio_h"
2077 v4l_indev_deps="linux_videodev_h"
2078 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2079 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2080 vfwcap_indev_extralibs="-lavicap32"
2081 x11grab_indev_deps="x11grab"
2082
2083 # protocols
2084 bluray_protocol_deps="libbluray"
2085 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2086 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2087 ffrtmpcrypt_protocol_select="tcp_protocol"
2088 ffrtmphttp_protocol_deps="!librtmp_protocol"
2089 ffrtmphttp_protocol_select="http_protocol"
2090 gopher_protocol_select="network"
2091 httpproxy_protocol_select="tcp_protocol"
2092 http_protocol_select="tcp_protocol"
2093 https_protocol_select="tls_protocol"
2094 librtmp_protocol_deps="librtmp"
2095 librtmpe_protocol_deps="librtmp"
2096 librtmps_protocol_deps="librtmp"
2097 librtmpt_protocol_deps="librtmp"
2098 librtmpte_protocol_deps="librtmp"
2099 mmsh_protocol_select="http_protocol"
2100 mmst_protocol_select="network"
2101 rtmp_protocol_deps="!librtmp_protocol"
2102 rtmp_protocol_select="tcp_protocol"
2103 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2104 rtmps_protocol_deps="!librtmp_protocol"
2105 rtmps_protocol_select="tls_protocol"
2106 rtmpt_protocol_select="ffrtmphttp_protocol"
2107 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2108 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2109 rtp_protocol_select="udp_protocol"
2110 sctp_protocol_deps="struct_sctp_event_subscribe"
2111 sctp_protocol_select="network"
2112 srtp_protocol_select="rtp_protocol"
2113 tcp_protocol_select="network"
2114 tls_protocol_deps_any="openssl gnutls"
2115 tls_protocol_select="tcp_protocol"
2116 udp_protocol_select="network"
2117
2118 # filters
2119 aconvert_filter_deps="swresample"
2120 amovie_filter_deps="avcodec avformat"
2121 aresample_filter_deps="swresample"
2122 ass_filter_deps="libass"
2123 asyncts_filter_deps="avresample"
2124 atempo_filter_deps="avcodec rdft"
2125 blackframe_filter_deps="gpl"
2126 boxblur_filter_deps="gpl"
2127 colormatrix_filter_deps="gpl"
2128 cropdetect_filter_deps="gpl"
2129 delogo_filter_deps="gpl"
2130 deshake_filter_deps="avcodec"
2131 deshake_filter_select="dsputil"
2132 drawtext_filter_deps="libfreetype"
2133 ebur128_filter_deps="gpl"
2134 flite_filter_deps="libflite"
2135 frei0r_filter_deps="frei0r dlopen"
2136 frei0r_filter_extralibs='$ldl'
2137 frei0r_src_filter_deps="frei0r dlopen"
2138 frei0r_src_filter_extralibs='$ldl'
2139 geq_filter_deps="gpl"
2140 histeq_filter_deps="gpl"
2141 hqdn3d_filter_deps="gpl"
2142 hue_filter_deps="gpl"
2143 interlace_filter_deps="gpl"
2144 kerndeint_filter_deps="gpl"
2145 movie_filter_deps="avcodec avformat"
2146 mp_filter_deps="gpl avcodec swscale inline_asm"
2147 mpdecimate_filter_deps="gpl avcodec"
2148 mptestsrc_filter_deps="gpl"
2149 negate_filter_deps="lut_filter"
2150 noise_filter_deps="gpl"
2151 resample_filter_deps="avresample"
2152 ocv_filter_deps="libopencv"
2153 pan_filter_deps="swresample"
2154 pp_filter_deps="gpl postproc"
2155 removelogo_filter_deps="avcodec avformat swscale"
2156 scale_filter_deps="swscale"
2157 smartblur_filter_deps="gpl swscale"
2158 showspectrum_filter_deps="avcodec rdft"
2159 stereo3d_filter_deps="gpl"
2160 subtitles_filter_deps="avformat avcodec libass"
2161 super2xsai_filter_deps="gpl"
2162 tinterlace_filter_deps="gpl"
2163 vidstabdetect_filter_deps="libvidstab"
2164 vidstabtransform_filter_deps="libvidstab"
2165 yadif_filter_deps="gpl"
2166 pixfmts_super2xsai_test_deps="super2xsai_filter"
2167 tinterlace_merge_test_deps="tinterlace_filter"
2168 tinterlace_pad_test_deps="tinterlace_filter"
2169
2170 # libraries
2171 avcodec_deps="avutil"
2172 avdevice_deps="avutil avcodec avformat"
2173 avfilter_deps="avutil"
2174 avformat_deps="avutil avcodec"
2175 avresample_deps="avutil"
2176 postproc_deps="avutil gpl"
2177 swscale_deps="avutil"
2178
2179 # programs
2180 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2181 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2182                null_filter
2183                setpts_filter trim_filter"
2184 ffplay_deps="avcodec avformat swscale swresample sdl"
2185 ffplay_select="rdft crop_filter"
2186 ffprobe_deps="avcodec avformat"
2187 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2188 ffserver_extralibs='$ldl'
2189
2190 # documentation
2191 podpages_deps="perl"
2192 manpages_deps="perl pod2man"
2193 htmlpages_deps="texi2html"
2194 txtpages_deps="makeinfo"
2195 doc_deps_any="manpages htmlpages podpages txtpages"
2196
2197 # default parameters
2198
2199 logfile="config.log"
2200
2201 # installation paths
2202 prefix_default="/usr/local"
2203 bindir_default='${prefix}/bin'
2204 datadir_default='${prefix}/share/ffmpeg'
2205 incdir_default='${prefix}/include'
2206 libdir_default='${prefix}/lib'
2207 mandir_default='${prefix}/share/man'
2208 shlibdir_default="$libdir_default"
2209
2210 # toolchain
2211 ar_default="ar"
2212 cc_default="gcc"
2213 cxx_default="g++"
2214 host_cc_default="gcc"
2215 cp_f="cp -f"
2216 install="install"
2217 ln_s="ln -s -f"
2218 nm_default="nm -g"
2219 objformat="elf"
2220 pkg_config_default=pkg-config
2221 ranlib="ranlib"
2222 strip_default="strip"
2223 yasmexe_default="yasm"
2224
2225 nogas=":"
2226
2227 # machine
2228 arch_default=$(uname -m)
2229 cpu="generic"
2230
2231 # OS
2232 target_os_default=$(tolower $(uname -s))
2233 host_os=$target_os_default
2234
2235 # configurable options
2236 enable $PROGRAM_LIST
2237 enable $DOCUMENT_LIST
2238 enable $(filter_out avresample $LIBRARY_LIST)
2239 enable stripping
2240
2241 enable asm
2242 enable debug
2243 enable doc
2244 enable optimizations
2245 enable runtime_cpudetect
2246 enable safe_bitstream_reader
2247 enable static
2248 enable swscale_alpha
2249
2250 # By default, enable only those hwaccels that have no external dependencies.
2251 enable dxva2 vdpau
2252
2253 # build settings
2254 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2255 FFSERVERLDFLAGS=-Wl,-E
2256 LIBPREF="lib"
2257 LIBSUF=".a"
2258 FULLNAME='$(NAME)$(BUILDSUF)'
2259 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2260 SLIBPREF="lib"
2261 SLIBSUF=".so"
2262 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2263 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2264 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2265 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2266 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2267 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2268
2269 asflags_filter=echo
2270 cflags_filter=echo
2271 ldflags_filter=echo
2272
2273 AS_C='-c'
2274 AS_O='-o $@'
2275 CC_C='-c'
2276 CC_E='-E -o $@'
2277 CC_O='-o $@'
2278 CXX_C='-c'
2279 CXX_O='-o $@'
2280 LD_O='-o $@'
2281 LD_LIB='-l%'
2282 LD_PATH='-L'
2283 HOSTCC_C='-c'
2284 HOSTCC_O='-o $@'
2285 HOSTLD_O='-o $@'
2286
2287 host_cflags='-O3 -g'
2288 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2289 host_libs='-lm'
2290 host_cflags_filter=echo
2291 host_ldflags_filter=echo
2292
2293 target_path='$(CURDIR)'
2294
2295 # since the object filename is not given with the -MM flag, the compiler
2296 # is only able to print the basename, and we must add the path ourselves
2297 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2298 DEPFLAGS='-MM'
2299
2300 # find source path
2301 if test -f configure; then
2302     source_path=.
2303 else
2304     source_path=$(cd $(dirname "$0"); pwd)
2305     echo "$source_path" | grep -q '[[:blank:]]' &&
2306         die "Out of tree builds are impossible with whitespace in source path."
2307     test -e "$source_path/config.h" &&
2308         die "Out of tree builds are impossible with config.h in source dir."
2309 fi
2310
2311 for v in "$@"; do
2312     r=${v#*=}
2313     l=${v%"$r"}
2314     r=$(sh_quote "$r")
2315     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2316 done
2317
2318 find_things(){
2319     thing=$1
2320     pattern=$2
2321     file=$source_path/$3
2322     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2323 }
2324
2325 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2326 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2327 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2328 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2329 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2330 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2331 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2332 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2333 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2334 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2335 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2336
2337 ALL_COMPONENTS="
2338     $BSF_LIST
2339     $DECODER_LIST
2340     $DEMUXER_LIST
2341     $ENCODER_LIST
2342     $FILTER_LIST
2343     $HWACCEL_LIST
2344     $INDEV_LIST
2345     $MUXER_LIST
2346     $OUTDEV_LIST
2347     $PARSER_LIST
2348     $PROTOCOL_LIST
2349 "
2350
2351 for n in $COMPONENT_LIST; do
2352     v=$(toupper ${n%s})_LIST
2353     eval enable \$$v
2354     eval ${n}_if_any="\$$v"
2355 done
2356
2357 enable $ARCH_EXT_LIST
2358
2359 die_unknown(){
2360     echo "Unknown option \"$1\"."
2361     echo "See $0 --help for available options."
2362     exit 1
2363 }
2364
2365 print_3_columns() {
2366     cat | tr ' ' '\n' | sort | pr -r -3 -t
2367 }
2368
2369 show_list() {
2370     suffix=_$1
2371     shift
2372     echo $* | sed s/$suffix//g | print_3_columns
2373     exit 0
2374 }
2375
2376 rand_list(){
2377     IFS=', '
2378     set -- $*
2379     unset IFS
2380     for thing; do
2381         comp=${thing%:*}
2382         prob=${thing#$comp}
2383         prob=${prob#:}
2384         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2385         echo "prob ${prob:-0.5}"
2386         printf '%s\n' $comp
2387     done
2388 }
2389
2390 do_random(){
2391     action=$1
2392     shift
2393     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2394     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2395 }
2396
2397 for opt do
2398     optval="${opt#*=}"
2399     case "$opt" in
2400         --extra-ldflags=*)
2401             add_ldflags $optval
2402         ;;
2403         --extra-libs=*)
2404             add_extralibs $optval
2405         ;;
2406         --disable-devices)
2407             disable $INDEV_LIST $OUTDEV_LIST
2408         ;;
2409         --enable-debug=*)
2410             debuglevel="$optval"
2411         ;;
2412         --disable-programs)
2413             disable $PROGRAM_LIST
2414         ;;
2415         --disable-everything)
2416             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2417         ;;
2418         --disable-all)
2419             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2420             disable $LIBRARY_LIST $PROGRAM_LIST doc
2421         ;;
2422         --enable-random|--disable-random)
2423             action=${opt%%-random}
2424             do_random ${action#--} $COMPONENT_LIST
2425         ;;
2426         --enable-random=*|--disable-random=*)
2427             action=${opt%%-random=*}
2428             do_random ${action#--} $optval
2429         ;;
2430         --enable-*=*|--disable-*=*)
2431             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2432             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2433             eval list=\$$(toupper $thing)_LIST
2434             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2435             list=$(filter "$name" $list)
2436             [ "$list" = "" ] && warn "Option $opt did not match anything"
2437             $action $list
2438         ;;
2439         --enable-?*|--disable-?*)
2440             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2441             if is_in $option $COMPONENT_LIST; then
2442                 test $action = disable && action=unset
2443                 eval $action \$$(toupper ${option%s})_LIST
2444             elif is_in $option $CMDLINE_SELECT; then
2445                 $action $option
2446             else
2447                 die_unknown $opt
2448             fi
2449         ;;
2450         --list-*)
2451             NAME="${opt#--list-}"
2452             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2453             NAME=${NAME%s}
2454             eval show_list $NAME \$$(toupper $NAME)_LIST
2455         ;;
2456         --help|-h) show_help
2457         ;;
2458         --fatal-warnings) enable fatal_warnings
2459         ;;
2460         *)
2461             optname="${opt%%=*}"
2462             optname="${optname#--}"
2463             optname=$(echo "$optname" | sed 's/-/_/g')
2464             if is_in $optname $CMDLINE_SET; then
2465                 eval $optname='$optval'
2466             elif is_in $optname $CMDLINE_APPEND; then
2467                 append $optname "$optval"
2468             else
2469                 die_unknown $opt
2470             fi
2471         ;;
2472     esac
2473 done
2474
2475 disabled logging && logfile=/dev/null
2476
2477 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2478 set >> $logfile
2479
2480 test -n "$cross_prefix" && enable cross_compile
2481
2482 if enabled cross_compile; then
2483     test -n "$arch" && test -n "$target_os" ||
2484         die "Must specify target arch and OS when cross-compiling"
2485 fi
2486
2487 ar_default="${cross_prefix}${ar_default}"
2488 cc_default="${cross_prefix}${cc_default}"
2489 cxx_default="${cross_prefix}${cxx_default}"
2490 nm_default="${cross_prefix}${nm_default}"
2491 pkg_config_default="${cross_prefix}${pkg_config_default}"
2492 ranlib="${cross_prefix}${ranlib}"
2493 strip_default="${cross_prefix}${strip_default}"
2494
2495 sysinclude_default="${sysroot}/usr/include"
2496
2497 test -n "$valgrind" && toolchain="valgrind-memcheck"
2498
2499 case "$toolchain" in
2500     clang-asan)
2501         cc_default="clang"
2502         add_cflags  -fsanitize=address
2503         add_ldflags -fsanitize=address
2504     ;;
2505     clang-tsan)
2506         cc_default="clang"
2507         add_cflags  -fsanitize=thread -pie
2508         add_ldflags -fsanitize=thread -pie
2509     ;;
2510     valgrind-memcheck)
2511         target_exec_default=${valgrind:-"valgrind"}
2512         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"
2513     ;;
2514     msvc)
2515         cc_default="c99wrap cl"
2516         ld_default="c99wrap link"
2517         nm_default="dumpbin -symbols"
2518         ar_default="lib"
2519         target_os_default="win32"
2520     ;;
2521     gcov)
2522         add_cflags  -fprofile-arcs -ftest-coverage
2523         add_ldflags -fprofile-arcs -ftest-coverage
2524     ;;
2525     ?*)
2526         die "Unknown toolchain $toolchain"
2527     ;;
2528 esac
2529
2530 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2531 enabled cross_compile || host_cc_default=$cc
2532 set_default host_cc
2533
2534 if ! $pkg_config --version >/dev/null 2>&1; then
2535     warn "$pkg_config not found, library detection may fail."
2536     pkg_config=false
2537 fi
2538
2539 exesuf() {
2540     case $1 in
2541         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2542     esac
2543 }
2544
2545 EXESUF=$(exesuf $target_os)
2546 HOSTEXESUF=$(exesuf $host_os)
2547
2548 # set temporary file name
2549 : ${TMPDIR:=$TEMPDIR}
2550 : ${TMPDIR:=$TMP}
2551 : ${TMPDIR:=/tmp}
2552
2553 if ! check_cmd mktemp -u XXXXXX; then
2554     # simple replacement for missing mktemp
2555     # NOT SAFE FOR GENERAL USE
2556     mktemp(){
2557         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2558     }
2559 fi
2560
2561 tmpfile(){
2562     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2563         (set -C; exec > $tmp) 2>/dev/null ||
2564         die "Unable to create temporary file in $TMPDIR."
2565     append TMPFILES $tmp
2566     eval $1=$tmp
2567 }
2568
2569 trap 'rm -f -- $TMPFILES' EXIT
2570
2571 tmpfile TMPASM .asm
2572 tmpfile TMPC   .c
2573 tmpfile TMPCPP .cpp
2574 tmpfile TMPE   $EXESUF
2575 tmpfile TMPH   .h
2576 tmpfile TMPO   .o
2577 tmpfile TMPS   .S
2578 tmpfile TMPSH  .sh
2579 tmpfile TMPV   .ver
2580
2581 unset -f mktemp
2582
2583 chmod +x $TMPE
2584
2585 # make sure we can execute files in $TMPDIR
2586 cat > $TMPSH 2>> $logfile <<EOF
2587 #! /bin/sh
2588 EOF
2589 chmod +x $TMPSH >> $logfile 2>&1
2590 if ! $TMPSH >> $logfile 2>&1; then
2591     cat <<EOF
2592 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2593 variable to another directory and make sure that it is not mounted noexec.
2594 EOF
2595     die "Sanity test failed."
2596 fi
2597
2598 ccc_flags(){
2599     for flag; do
2600         case $flag in
2601             -std=c99)           echo -c99                       ;;
2602             -mcpu=*)            echo -arch ${flag#*=}           ;;
2603             -mieee)             echo -ieee                      ;;
2604             -O*|-fast)          echo $flag                      ;;
2605             -fno-math-errno)    echo -assume nomath_errno       ;;
2606             -g)                 echo -g3                        ;;
2607             -Wall)              echo -msg_enable level2         ;;
2608             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2609             -Wl,*)              echo $flag                      ;;
2610             -f*|-W*)                                            ;;
2611             *)                  echo $flag                      ;;
2612         esac
2613    done
2614 }
2615
2616 msvc_flags(){
2617     for flag; do
2618         case $flag in
2619             -fomit-frame-pointer) echo -Oy ;;
2620             -g)                   echo -Z7 ;;
2621             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2622                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2623                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2624                                        -wd4554 \
2625                                        -wd4996 -wd4273 ;;
2626             -std=c99)             ;;
2627             -fno-math-errno)      ;;
2628             -fno-common)          ;;
2629             -fno-signed-zeros)    ;;
2630             -fPIC)                ;;
2631             -lz)                  echo zlib.lib ;;
2632             -lavifil32)           echo vfw32.lib ;;
2633             -lavicap32)           echo vfw32.lib user32.lib ;;
2634             -l*)                  echo ${flag#-l}.lib ;;
2635             *)                    echo $flag ;;
2636         esac
2637     done
2638 }
2639
2640 pgi_flags(){
2641     for flag; do
2642         case $flag in
2643             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2644             -fomit-frame-pointer) echo -Mnoframe ;;
2645             -g)                   echo -gopt ;;
2646             *)                    echo $flag ;;
2647         esac
2648     done
2649 }
2650
2651 suncc_flags(){
2652     for flag; do
2653         case $flag in
2654             -march=*|-mcpu=*)
2655                 case "${flag#*=}" in
2656                     native)                   echo -xtarget=native       ;;
2657                     v9|niagara)               echo -xarch=sparc          ;;
2658                     ultrasparc)               echo -xarch=sparcvis       ;;
2659                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2660                     i586|pentium)             echo -xchip=pentium        ;;
2661                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2662                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2663                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2664                     pentium4*)          echo -xtarget=pentium4           ;;
2665                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2666                     *-sse3)             echo -xarch=sse3                 ;;
2667                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2668                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2669                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2670                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2671                     bdver*)                   echo -xarch=avx            ;;
2672                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2673                     k8|opteron|athlon64|athlon-fx)
2674                                               echo -xarch=sse2a          ;;
2675                     athlon*)                  echo -xarch=pentium_proa   ;;
2676                 esac
2677                 ;;
2678             -std=c99)             echo -xc99              ;;
2679             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2680             -fPIC)                echo -KPIC -xcode=pic32 ;;
2681             -W*,*)                echo $flag              ;;
2682             -f*-*|-W*|-mimpure-text)                      ;;
2683             -shared)              echo -G                 ;;
2684             *)                    echo $flag              ;;
2685         esac
2686     done
2687 }
2688
2689 tms470_flags(){
2690     for flag; do
2691         case $flag in
2692             -march=*|-mcpu=*)
2693                 case "${flag#*=}" in
2694                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2695                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2696                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2697                     armv6*|arm11*)          echo -mv=6   ;;
2698                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2699                                             echo -mv=5e  ;;
2700                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2701                 esac
2702                 ;;
2703             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2704             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2705             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2706             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2707             -msoft-float)   echo --float_support=vfplib       ;;
2708             -O[0-3]|-mf=*)  echo $flag                        ;;
2709             -g)             echo -g -mn                       ;;
2710             -pds=*)         echo $flag                        ;;
2711             -D*|-I*)        echo $flag                        ;;
2712             --gcc|--abi=*)  echo $flag                        ;;
2713             -me)            echo $flag                        ;;
2714         esac
2715     done
2716 }
2717
2718 probe_cc(){
2719     pfx=$1
2720     _cc=$2
2721
2722     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2723     unset _ld_o _ldflags _ld_lib _ld_path
2724     unset _depflags _DEPCMD _DEPFLAGS
2725     _flags_filter=echo
2726
2727     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2728         _type=llvm_gcc
2729         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2730         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2731         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2732         _cflags_speed='-O3'
2733         _cflags_size='-Os'
2734     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2735         _type=gcc
2736         gcc_version=$($_cc --version | head -n1)
2737         gcc_basever=$($_cc -dumpversion)
2738         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2739         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2740         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2741         if ! $_cc -dumpversion | grep -q '^2\.'; then
2742             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2743         fi
2744         _cflags_speed='-O3'
2745         _cflags_size='-Os'
2746     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2747         _type=icc
2748         _ident=$($_cc --version | head -n1)
2749         _depflags='-MMD'
2750         _cflags_speed='-O3'
2751         _cflags_size='-Os'
2752         _cflags_noopt='-O1'
2753     elif $_cc -v 2>&1 | grep -q xlc; then
2754         _type=xlc
2755         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2756         _cflags_speed='-O5'
2757         _cflags_size='-O5 -qcompact'
2758     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2759         _type=ccc
2760         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2761         _DEPFLAGS='-M'
2762         _cflags_speed='-fast'
2763         _cflags_size='-O1'
2764         _flags_filter=ccc_flags
2765     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2766         test -d "$sysroot" || die "No valid sysroot specified."
2767         _type=armcc
2768         _ident=$($_cc --vsn | head -n1)
2769         armcc_conf="$PWD/armcc.conf"
2770         $_cc --arm_linux_configure                 \
2771              --arm_linux_config_file="$armcc_conf" \
2772              --configure_sysroot="$sysroot"        \
2773              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2774              die "Error creating armcc configuration file."
2775         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2776         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2777         as_default="${cross_prefix}gcc"
2778         _depflags='-MMD'
2779         _cflags_speed='-O3'
2780         _cflags_size='-Os'
2781     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2782         _type=tms470
2783         _ident=$($_cc -version | head -n1 | tr -s ' ')
2784         _flags='--gcc --abi=eabi -me'
2785         _cc_e='-ppl -fe=$@'
2786         _cc_o='-fe=$@'
2787         _depflags='-ppa -ppd=$(@:.o=.d)'
2788         _cflags_speed='-O3 -mf=5'
2789         _cflags_size='-O3 -mf=2'
2790         _flags_filter=tms470_flags
2791     elif $_cc -v 2>&1 | grep -q clang; then
2792         _type=clang
2793         _ident=$($_cc --version | head -n1)
2794         _depflags='-MMD'
2795         _cflags_speed='-O3'
2796         _cflags_size='-Os'
2797     elif $_cc -V 2>&1 | grep -q Sun; then
2798         _type=suncc
2799         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2800         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2801         _DEPFLAGS='-xM1 -xc99'
2802         _ldflags='-std=c99'
2803         _cflags_speed='-O5'
2804         _cflags_size='-O5 -xspace'
2805         _flags_filter=suncc_flags
2806     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2807         _type=pathscale
2808         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2809         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2810         _cflags_speed='-O2'
2811         _cflags_size='-Os'
2812         _flags_filter='filter_out -Wdisabled-optimization'
2813     elif $_cc -v 2>&1 | grep -q Open64; then
2814         _type=open64
2815         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2816         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2817         _cflags_speed='-O2'
2818         _cflags_size='-Os'
2819         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2820     elif $_cc -V 2>&1 | grep -q Portland; then
2821         _type=pgi
2822         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2823         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2824         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2825         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2826         _cflags_noopt="-O"
2827         _flags_filter=pgi_flags
2828     elif $_cc 2>&1 | grep -q Microsoft; then
2829         _type=msvc
2830         _ident=$($cc 2>&1 | head -n1)
2831         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2832         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2833         _cflags_speed="-O2"
2834         _cflags_size="-O1"
2835         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2836         if $_cc 2>&1 | grep -q Linker; then
2837             _ld_o='-out $@'
2838         else
2839             _ld_o='-Fe$@'
2840         fi
2841         _cc_o='-Fo $@'
2842         _cc_e='-P -Fi $@'
2843         _flags_filter=msvc_flags
2844         _ld_lib='lib%.a'
2845         _ld_path='-libpath:'
2846         _flags='-nologo'
2847         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2848         if [ $pfx = hostcc ]; then
2849             append _cflags -Dsnprintf=_snprintf
2850         fi
2851         disable stripping
2852     fi
2853
2854     eval ${pfx}_type=\$_type
2855     eval ${pfx}_ident=\$_ident
2856 }
2857
2858 set_ccvars(){
2859     eval ${1}_C=\${_cc_c-\${${1}_C}}
2860     eval ${1}_E=\${_cc_e-\${${1}_E}}
2861     eval ${1}_O=\${_cc_o-\${${1}_O}}
2862
2863     if [ -n "$_depflags" ]; then
2864         eval ${1}_DEPFLAGS=\$_depflags
2865     else
2866         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2867         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2868         eval DEP${1}FLAGS=\$_flags
2869     fi
2870 }
2871
2872 probe_cc cc "$cc"
2873 cflags_filter=$_flags_filter
2874 cflags_speed=$_cflags_speed
2875 cflags_size=$_cflags_size
2876 cflags_noopt=$_cflags_noopt
2877 add_cflags $_flags $_cflags
2878 cc_ldflags=$_ldflags
2879 set_ccvars CC
2880
2881 probe_cc hostcc "$host_cc"
2882 host_cflags_filter=$_flags_filter
2883 add_host_cflags  $_flags $_cflags
2884 set_ccvars HOSTCC
2885
2886 test -n "$cc_type" && enable $cc_type ||
2887     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2888
2889 : ${as_default:=$cc}
2890 : ${dep_cc_default:=$cc}
2891 : ${ld_default:=$cc}
2892 : ${host_ld_default:=$host_cc}
2893 set_default ar as dep_cc ld host_ld
2894
2895 probe_cc as "$as"
2896 asflags_filter=$_flags_filter
2897 add_asflags $_flags $_cflags
2898 set_ccvars AS
2899
2900 probe_cc ld "$ld"
2901 ldflags_filter=$_flags_filter
2902 add_ldflags $_flags $_ldflags
2903 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2904 LD_O=${_ld_o-$LD_O}
2905 LD_LIB=${_ld_lib-$LD_LIB}
2906 LD_PATH=${_ld_path-$LD_PATH}
2907
2908 probe_cc hostld "$host_ld"
2909 host_ldflags_filter=$_flags_filter
2910 add_host_ldflags $_flags $_ldflags
2911 HOSTLD_O=${_ld_o-$HOSTLD_O}
2912
2913 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2914     probe_cc depcc "$dep_cc"
2915     CCDEP=${_DEPCMD:-$DEPCMD}
2916     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2917     DEPCCFLAGS=$_flags
2918 fi
2919
2920 if $ar 2>&1 | grep -q Microsoft; then
2921     arflags="-nologo"
2922     ar_o='-out:$@'
2923 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2924     arflags="rq"
2925     ar_o='$@'
2926 else
2927     arflags="rc"
2928     ar_o='$@'
2929 fi
2930
2931 add_cflags $extra_cflags
2932 add_cxxflags $extra_cxxflags
2933 add_asflags $extra_cflags
2934
2935 if test -n "$sysroot"; then
2936     case "$cc_type" in
2937         gcc|llvm_gcc|clang)
2938             add_cppflags --sysroot="$sysroot"
2939             add_ldflags --sysroot="$sysroot"
2940         ;;
2941         tms470)
2942             add_cppflags -I"$sysinclude"
2943             add_ldflags  --sysroot="$sysroot"
2944         ;;
2945     esac
2946 fi
2947
2948 if test "$cpu" = host; then
2949     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2950
2951     case "$cc_type" in
2952         gcc|llvm_gcc)
2953             check_native(){
2954                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2955                 sed -n "/cc1.*$1=/{
2956                             s/.*$1=\\([^ ]*\\).*/\\1/
2957                             p
2958                             q
2959                         }" $TMPE
2960             }
2961             cpu=$(check_native -march || check_native -mcpu)
2962         ;;
2963     esac
2964
2965     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2966 fi
2967
2968 # Deal with common $arch aliases
2969 case "$arch" in
2970     aarch64|arm64)
2971         arch="aarch64"
2972     ;;
2973     arm*|iPad*)
2974         arch="arm"
2975     ;;
2976     mips*|IP*)
2977         arch="mips"
2978     ;;
2979     parisc*|hppa*)
2980         arch="parisc"
2981     ;;
2982     "Power Macintosh"|ppc*|powerpc*)
2983         arch="ppc"
2984     ;;
2985     s390|s390x)
2986         arch="s390"
2987     ;;
2988     sh4|sh)
2989         arch="sh4"
2990     ;;
2991     sun4u|sparc*)
2992         arch="sparc"
2993     ;;
2994     tilegx|tile-gx)
2995         arch="tilegx"
2996     ;;
2997     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2998         arch="x86"
2999     ;;
3000 esac
3001
3002 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3003 enable $arch
3004
3005 # Add processor-specific flags
3006 if enabled aarch64; then
3007
3008     case $cpu in
3009         armv*)
3010             cpuflags="-march=$cpu"
3011         ;;
3012         *)
3013             cpuflags="-mcpu=$cpu"
3014         ;;
3015     esac
3016
3017 elif enabled alpha; then
3018
3019     cpuflags="-mcpu=$cpu"
3020
3021 elif enabled arm; then
3022
3023     check_arm_arch() {
3024         check_cpp_condition stddef.h \
3025             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3026             $cpuflags
3027     }
3028
3029     probe_arm_arch() {
3030         if   check_arm_arch 4;        then echo armv4;
3031         elif check_arm_arch 4T;       then echo armv4t;
3032         elif check_arm_arch 5;        then echo armv5;
3033         elif check_arm_arch 5E;       then echo armv5e;
3034         elif check_arm_arch 5T;       then echo armv5t;
3035         elif check_arm_arch 5TE;      then echo armv5te;
3036         elif check_arm_arch 5TEJ;     then echo armv5te;
3037         elif check_arm_arch 6;        then echo armv6;
3038         elif check_arm_arch 6J;       then echo armv6j;
3039         elif check_arm_arch 6K;       then echo armv6k;
3040         elif check_arm_arch 6Z;       then echo armv6z;
3041         elif check_arm_arch 6ZK;      then echo armv6zk;
3042         elif check_arm_arch 6T2;      then echo armv6t2;
3043         elif check_arm_arch 7;        then echo armv7;
3044         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3045         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3046         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3047         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3048         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3049         fi
3050     }
3051
3052     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3053
3054     case $cpu in
3055         armv*)
3056             cpuflags="-march=$cpu"
3057             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3058         ;;
3059         *)
3060             cpuflags="-mcpu=$cpu"
3061             case $cpu in
3062                 cortex-a*)                               subarch=armv7a  ;;
3063                 cortex-r*)                               subarch=armv7r  ;;
3064                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3065                 arm11*)                                  subarch=armv6   ;;
3066                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3067                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3068                 *)                             subarch=$(probe_arm_arch) ;;
3069             esac
3070         ;;
3071     esac
3072
3073     case "$subarch" in
3074         armv5t*)    enable fast_clz                ;;
3075         armv[6-8]*) enable fast_clz fast_unaligned ;;
3076     esac
3077
3078 elif enabled avr32; then
3079
3080     case $cpu in
3081         ap7[02]0[0-2])
3082             subarch="avr32_ap"
3083             cpuflags="-mpart=$cpu"
3084         ;;
3085         ap)
3086             subarch="avr32_ap"
3087             cpuflags="-march=$cpu"
3088         ;;
3089         uc3[ab]*)
3090             subarch="avr32_uc"
3091             cpuflags="-mcpu=$cpu"
3092         ;;
3093         uc)
3094             subarch="avr32_uc"
3095             cpuflags="-march=$cpu"
3096         ;;
3097     esac
3098
3099 elif enabled bfin; then
3100
3101     cpuflags="-mcpu=$cpu"
3102
3103 elif enabled mips; then
3104
3105     cpuflags="-march=$cpu"
3106
3107     case $cpu in
3108         24kc)
3109             disable mipsfpu
3110             disable mipsdspr1
3111             disable mipsdspr2
3112         ;;
3113         24kf*)
3114             disable mipsdspr1
3115             disable mipsdspr2
3116         ;;
3117         24kec|34kc|1004kc)
3118             disable mipsfpu
3119             disable mipsdspr2
3120         ;;
3121         24kef*|34kf*|1004kf*)
3122             disable mipsdspr2
3123         ;;
3124         74kc)
3125             disable mipsfpu
3126         ;;
3127     esac
3128
3129 elif enabled ppc; then
3130
3131     case $(tolower $cpu) in
3132         601|ppc601|powerpc601)
3133             cpuflags="-mcpu=601"
3134             disable altivec
3135         ;;
3136         603*|ppc603*|powerpc603*)
3137             cpuflags="-mcpu=603"
3138             disable altivec
3139         ;;
3140         604*|ppc604*|powerpc604*)
3141             cpuflags="-mcpu=604"
3142             disable altivec
3143         ;;
3144         g3|75*|ppc75*|powerpc75*)
3145             cpuflags="-mcpu=750"
3146             disable altivec
3147         ;;
3148         g4|745*|ppc745*|powerpc745*)
3149             cpuflags="-mcpu=7450"
3150         ;;
3151         74*|ppc74*|powerpc74*)
3152             cpuflags="-mcpu=7400"
3153         ;;
3154         g5|970|ppc970|powerpc970)
3155             cpuflags="-mcpu=970"
3156         ;;
3157         power[3-7]*)
3158             cpuflags="-mcpu=$cpu"
3159         ;;
3160         cell)
3161             cpuflags="-mcpu=cell"
3162             enable ldbrx
3163         ;;
3164         e500mc)
3165             cpuflags="-mcpu=e500mc"
3166             disable altivec
3167         ;;
3168         e500v2)
3169             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3170             disable altivec
3171         ;;
3172         e500)
3173             cpuflags="-mcpu=8540 -mhard-float"
3174             disable altivec
3175         ;;
3176     esac
3177
3178 elif enabled sparc; then
3179
3180     case $cpu in
3181         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3182             cpuflags="-mcpu=$cpu"
3183             disable vis
3184         ;;
3185         ultrasparc*|niagara[234])
3186             cpuflags="-mcpu=$cpu"
3187         ;;
3188     esac
3189
3190 elif enabled x86; then
3191
3192     case $cpu in
3193         i[345]86|pentium)
3194             cpuflags="-march=$cpu"
3195             disable mmx
3196         ;;
3197         # targets that do NOT support conditional mov (cmov)
3198         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3199             cpuflags="-march=$cpu"
3200             disable cmov
3201         ;;
3202         # targets that do support conditional mov (cmov)
3203         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3204             cpuflags="-march=$cpu"
3205             enable cmov
3206             enable fast_cmov
3207         ;;
3208         # targets that do support conditional mov but on which it's slow
3209         pentium4|pentium4m|prescott|nocona)
3210             cpuflags="-march=$cpu"
3211             enable cmov
3212             disable fast_cmov
3213         ;;
3214     esac
3215
3216 fi
3217
3218 if [ "$cpu" != generic ]; then
3219     add_cflags  $cpuflags
3220     add_asflags $cpuflags
3221 fi
3222
3223 # compiler sanity check
3224 check_exec <<EOF
3225 int main(void){ return 0; }
3226 EOF
3227 if test "$?" != 0; then
3228     echo "$cc is unable to create an executable file."
3229     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3230         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3231         echo "Only do this if you know what cross compiling means."
3232     fi
3233     die "C compiler test failed."
3234 fi
3235
3236 add_cppflags -D_ISOC99_SOURCE
3237 add_cxxflags -D__STDC_CONSTANT_MACROS
3238 check_cflags -std=c99
3239 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3240 #include <stdlib.h>
3241 EOF
3242 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3243 #include <stdlib.h>
3244 EOF
3245
3246 check_host_cflags -std=c99
3247 check_host_cflags -Wall
3248
3249 check_64bit(){
3250     arch32=$1
3251     arch64=$2
3252     expr=$3
3253     check_code cc "" "int test[2*($expr) - 1]" &&
3254         subarch=$arch64 || subarch=$arch32
3255 }
3256
3257 case "$arch" in
3258     aarch64|alpha|ia64)
3259         spic=$shared
3260     ;;
3261     mips)
3262         check_64bit mips mips64 '_MIPS_SIM > 1'
3263         spic=$shared
3264     ;;
3265     parisc)
3266         check_64bit parisc parisc64 'sizeof(void *) > 4'
3267         spic=$shared
3268     ;;
3269     ppc)
3270         check_64bit ppc ppc64 'sizeof(void *) > 4'
3271         spic=$shared
3272     ;;
3273     sparc)
3274         check_64bit sparc sparc64 'sizeof(void *) > 4'
3275         spic=$shared
3276     ;;
3277     x86)
3278         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3279         if test "$subarch" = "x86_64"; then
3280             spic=$shared
3281         fi
3282     ;;
3283     ppc)
3284         check_cc <<EOF && subarch="ppc64"
3285         int test[(int)sizeof(char*) - 7];
3286 EOF
3287     ;;
3288 esac
3289
3290 enable $subarch
3291 enabled spic && enable_weak pic
3292
3293 # OS specific
3294 case $target_os in
3295     haiku)
3296         prefix_default="/boot/common"
3297         network_extralibs="-lnetwork"
3298         host_libs=
3299         ;;
3300     sunos)
3301         FFSERVERLDFLAGS=""
3302         SHFLAGS='-shared -Wl,-h,$$(@F)'
3303         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3304         network_extralibs="-lsocket -lnsl"
3305         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3306         # When using suncc to build, the Solaris linker will mark
3307         # an executable with each instruction set encountered by
3308         # the Solaris assembler.  As our libraries contain their own
3309         # guards for processor-specific code, instead suppress
3310         # generation of the HWCAPS ELF section on Solaris x86 only.
3311         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3312         nm_default='nm -P -g'
3313         ;;
3314     netbsd)
3315         disable symver
3316         oss_indev_extralibs="-lossaudio"
3317         oss_outdev_extralibs="-lossaudio"
3318         enabled gcc || check_ldflags -Wl,-zmuldefs
3319         ;;
3320     openbsd|bitrig)
3321         disable symver
3322         SHFLAGS='-shared'
3323         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3324         SLIB_INSTALL_LINKS=
3325         oss_indev_extralibs="-lossaudio"
3326         oss_outdev_extralibs="-lossaudio"
3327         ;;
3328     dragonfly)
3329         disable symver
3330         ;;
3331     freebsd)
3332         ;;
3333     bsd/os)
3334         add_extralibs -lpoll -lgnugetopt
3335         strip="strip -d"
3336         ;;
3337     darwin)
3338         gas="gas-preprocessor.pl $cc"
3339         enabled ppc && add_asflags -force_cpusubtype_ALL
3340         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3341         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3342         strip="${strip} -x"
3343         add_ldflags -Wl,-dynamic,-search_paths_first
3344         SLIBSUF=".dylib"
3345         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3346         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3347         FFSERVERLDFLAGS=-Wl,-bind_at_load
3348         objformat="macho"
3349         enabled x86_64 && objformat="macho64"
3350         enabled_any pic shared ||
3351             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3352         ;;
3353     mingw32*)
3354         if test $target_os = "mingw32ce"; then
3355             disable network
3356         else
3357             target_os=mingw32
3358         fi
3359         LIBTARGET=i386
3360         if enabled x86_64; then
3361             LIBTARGET="i386:x86-64"
3362         elif enabled arm; then
3363             LIBTARGET=arm-wince
3364         fi
3365         shlibdir_default="$bindir_default"
3366         SLIBPREF=""
3367         SLIBSUF=".dll"
3368         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3369         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3370         dlltool="${cross_prefix}dlltool"
3371         if check_cmd lib.exe -list; then
3372             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3373             if enabled x86_64; then
3374                 LIBTARGET=x64
3375             fi
3376         elif check_cmd $dlltool --version; then
3377             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3378         fi
3379         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3380         SLIB_INSTALL_LINKS=
3381         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3382         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3383         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3384         objformat="win32"
3385         ranlib=:
3386         enable dos_paths
3387         disable pic
3388         ;;
3389     win32|win64)
3390         if enabled shared; then
3391             # Link to the import library instead of the normal static library
3392             # for shared libs.
3393             LD_LIB='%.lib'
3394             # Cannot build shared and static libraries at the same time with
3395             # MSVC.
3396             disable static
3397         fi
3398         shlibdir_default="$bindir_default"
3399         SLIBPREF=""
3400         SLIBSUF=".dll"
3401         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3402         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3403         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3404         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3405         SLIB_INSTALL_LINKS=
3406         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3407         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3408         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3409         objformat="win32"
3410         ranlib=:
3411         enable dos_paths
3412         disable pic
3413         ;;
3414     cygwin*)
3415         target_os=cygwin
3416         shlibdir_default="$bindir_default"
3417         SLIBPREF="cyg"
3418         SLIBSUF=".dll"
3419         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3420         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3421         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3422         SLIB_INSTALL_LINKS=
3423         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3424         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3425         objformat="win32"
3426         enable dos_paths
3427         ;;
3428     *-dos|freedos|opendos)
3429         network_extralibs="-lsocket"
3430         objformat="coff"
3431         enable dos_paths
3432         add_cppflags -U__STRICT_ANSI__
3433         ;;
3434     linux)
3435         enable dv1394
3436         ;;
3437     irix*)
3438         target_os=irix
3439         ranlib="echo ignoring ranlib"
3440         ;;
3441     os/2*)
3442         strip="lxlite -CS"
3443         ln_s="cp -f"
3444         objformat="aout"
3445         add_cppflags -D_GNU_SOURCE
3446         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3447         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3448         FFSERVERLDFLAGS=""
3449         LIBSUF="_s.a"
3450         SLIBPREF=""
3451         SLIBSUF=".dll"
3452         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3453         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3454         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3455             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3456             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3457             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3458             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3459             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3460         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3461             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3462         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3463         enable dos_paths
3464         enable_weak os2threads
3465         ;;
3466     gnu/kfreebsd)
3467         add_cppflags -D_BSD_SOURCE
3468         ;;
3469     gnu)
3470         ;;
3471     qnx)
3472         add_cppflags -D_QNX_SOURCE
3473         network_extralibs="-lsocket"
3474         ;;
3475     symbian)
3476         SLIBSUF=".dll"
3477         enable dos_paths
3478         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3479         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3480         add_ldflags -Wl,--target1-abs,--no-undefined \
3481                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3482                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3483         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3484                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3485                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3486         ;;
3487     osf1)
3488         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3489         FFSERVERLDFLAGS=
3490         ;;
3491     minix)
3492         ;;
3493     plan9)
3494         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3495                      -D_REENTRANT_SOURCE        \
3496                      -D_RESEARCH_SOURCE         \
3497                      -DFD_SETSIZE=96            \
3498                      -DHAVE_SOCK_OPTS
3499         add_compat strtod.o strtod=avpriv_strtod
3500         network_extralibs='-lbsd'
3501         exeobjs=compat/plan9/main.o
3502         disable ffserver
3503         cp_f='cp'
3504         ;;
3505     none)
3506         ;;
3507     *)
3508         die "Unknown OS '$target_os'."
3509         ;;
3510 esac
3511
3512 # determine libc flavour
3513
3514 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3515 if check_cpp_condition features.h "defined __UCLIBC__"; then
3516     libc_type=uclibc
3517     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3518 elif check_cpp_condition features.h "defined __GLIBC__"; then
3519     libc_type=glibc
3520     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3521 # MinGW headers can be installed on Cygwin, so check for newlib first.
3522 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3523     libc_type=newlib
3524     add_cppflags -U__STRICT_ANSI__
3525 elif check_header _mingw.h; then
3526     libc_type=mingw
3527     check_cpp_condition _mingw.h \
3528         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3529             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3530         die "ERROR: MinGW runtime version must be >= 3.15."
3531     add_cppflags -U__STRICT_ANSI__
3532     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3533             __MINGW64_VERSION_MAJOR < 3"; then
3534         add_compat msvcrt/snprintf.o
3535         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3536     fi
3537 elif check_func_headers stdlib.h _get_doserrno; then
3538     libc_type=msvcrt
3539     add_compat strtod.o strtod=avpriv_strtod
3540     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3541                                  _snprintf=avpriv_snprintf  \
3542                                  vsnprintf=avpriv_vsnprintf
3543 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3544     libc_type=klibc
3545 fi
3546
3547 test -n "$libc_type" && enable $libc_type
3548
3549 # hacks for compiler/libc/os combinations
3550
3551 if enabled_all tms470 glibc; then
3552     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3553     add_cppflags -D__USER_LABEL_PREFIX__=
3554     add_cppflags -D__builtin_memset=memset
3555     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3556     add_cflags   -pds=48    # incompatible redefinition of macro
3557 fi
3558
3559 if enabled_all ccc glibc; then
3560     add_ldflags -Wl,-z,now  # calls to libots crash without this
3561 fi
3562
3563 esc(){
3564     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3565 }
3566
3567 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3568
3569 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3570
3571 set_default $PATHS_LIST
3572 set_default nm
3573
3574 # we need to build at least one lib type
3575 if ! enabled_any static shared; then
3576     cat <<EOF
3577 At least one library type must be built.
3578 Specify --enable-static to build the static libraries or --enable-shared to
3579 build the shared libraries as well. To only build the shared libraries specify
3580 --disable-static in addition to --enable-shared.
3581 EOF
3582     exit 1;
3583 fi
3584
3585 die_license_disabled() {
3586     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3587 }
3588
3589 die_license_disabled_gpl() {
3590     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3591 }
3592
3593 die_license_disabled gpl libcdio
3594 die_license_disabled gpl libutvideo
3595 die_license_disabled gpl libvidstab
3596 die_license_disabled gpl libx264
3597 die_license_disabled gpl libxavs
3598 die_license_disabled gpl libxvid
3599 die_license_disabled gpl x11grab
3600
3601 die_license_disabled nonfree libaacplus
3602 die_license_disabled nonfree libfaac
3603 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3604 enabled gpl && die_license_disabled_gpl nonfree openssl
3605
3606 die_license_disabled version3 libopencore_amrnb
3607 die_license_disabled version3 libopencore_amrwb
3608 die_license_disabled version3 libvo_aacenc
3609 die_license_disabled version3 libvo_amrwbenc
3610
3611 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3612
3613 disabled optimizations || check_cflags -fomit-frame-pointer
3614
3615 enable_weak_pic() {
3616     disabled pic && return
3617     enable pic
3618     add_cppflags -DPIC
3619     add_cflags   -fPIC
3620     add_asflags  -fPIC
3621 }
3622
3623 enabled pic && enable_weak_pic
3624
3625 check_cc <<EOF || die "Symbol mangling check failed."
3626 int ff_extern;
3627 EOF
3628 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3629 extern_prefix=${sym%%ff_extern*}
3630
3631 check_cc <<EOF && enable_weak inline_asm
3632 void foo(void) { __asm__ volatile ("" ::); }
3633 EOF
3634
3635 _restrict=
3636 for restrict_keyword in restrict __restrict__ __restrict; do
3637     check_cc <<EOF && _restrict=$restrict_keyword && break
3638 void foo(char * $restrict_keyword p);
3639 EOF
3640 done
3641
3642 check_cc <<EOF && enable attribute_packed
3643 struct { int x; } __attribute__((packed)) x;
3644 EOF
3645
3646 check_cc <<EOF && enable attribute_may_alias
3647 union { int x; } __attribute__((may_alias)) x;
3648 EOF
3649
3650 check_cc <<EOF || die "endian test failed"
3651 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3652 EOF
3653 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3654
3655 if enabled alpha; then
3656
3657     check_cflags -mieee
3658
3659 elif enabled arm; then
3660
3661     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3662 float func(float a, float b){ return a+b; }
3663 EOF
3664
3665     enabled thumb && check_cflags -mthumb || check_cflags -marm
3666     nogas=die
3667
3668     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3669         enable vfp_args
3670     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3671         case "${cross_prefix:-$cc}" in
3672             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3673             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3674 __asm__ (".eabi_attribute 28, 1");
3675 int main(void) { return 0; }
3676 EOF
3677         esac
3678         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3679     fi
3680
3681     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3682     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3683     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3684     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3685     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3686     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3687
3688     [ $target_os = linux ] ||
3689         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3690             $ARCH_EXT_LIST_ARM
3691
3692     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3693     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3694
3695     enabled_all armv6t2 shared !pic && enable_weak_pic
3696
3697 elif enabled mips; then
3698
3699     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3700     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3701      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3702     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3703      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3704     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3705      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3706     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3707      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3708
3709 elif enabled parisc; then
3710
3711     if enabled gcc; then
3712         case $($cc -dumpversion) in
3713             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3714         esac
3715     fi
3716
3717 elif enabled ppc; then
3718
3719     enable local_aligned_8 local_aligned_16
3720
3721     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3722     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3723     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3724     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3725
3726     # AltiVec flags: The FSF version of GCC differs from the Apple version
3727     if enabled altivec; then
3728         nogas=warn
3729         check_cflags -maltivec -mabi=altivec &&
3730         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3731         check_cflags -faltivec
3732
3733         # check if our compiler supports Motorola AltiVec C API
3734         check_cc <<EOF || disable altivec
3735 $inc_altivec_h
3736 int main(void) {
3737     vector signed int v1 = (vector signed int) { 0 };
3738     vector signed int v2 = (vector signed int) { 1 };
3739     v1 = vec_add(v1, v2);
3740     return 0;
3741 }
3742 EOF
3743
3744         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3745     fi
3746
3747 elif enabled sparc; then
3748
3749     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3750
3751 elif enabled x86; then
3752
3753     check_builtin rdtsc    intrin.h   "__rdtsc()"
3754     check_builtin mm_empty mmintrin.h "_mm_empty()"
3755
3756     enable local_aligned_8 local_aligned_16
3757
3758     # check whether EBP is available on x86
3759     # As 'i' is stored on the stack, this program will crash
3760     # if the base pointer is used to access it because the
3761     # base pointer is cleared in the inline assembly code.
3762     check_exec_crash <<EOF && enable ebp_available
3763 volatile int i=0;
3764 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3765 return i;
3766 EOF
3767
3768     # check whether EBX is available on x86
3769     check_inline_asm ebx_available '""::"b"(0)' &&
3770         check_inline_asm ebx_available '"":::"%ebx"'
3771
3772     # check whether xmm clobbers are supported
3773     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3774
3775     # check whether binutils is new enough to compile SSSE3/MMXEXT
3776     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3777     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3778
3779     if ! disabled_any asm mmx yasm; then
3780         if check_cmd $yasmexe --version; then
3781             enabled x86_64 && yasm_extra="-m amd64"
3782             yasm_debug="-g dwarf2"
3783         elif check_cmd nasm -v; then
3784             yasmexe=nasm
3785             yasm_debug="-g -F dwarf"
3786             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3787         fi
3788
3789         YASMFLAGS="-f $objformat $yasm_extra"
3790         enabled pic               && append YASMFLAGS "-DPIC"
3791         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3792         case "$objformat" in
3793             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3794         esac
3795
3796         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3797             die "yasm not found, use --disable-yasm for a crippled build"
3798         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3799         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3800         check_yasm "CPU amdnop" && enable cpunop
3801     fi
3802
3803     case "$cpu" in
3804         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3805             disable fast_clz
3806         ;;
3807     esac
3808
3809 fi
3810
3811 if enabled asm; then
3812     as=${gas:=$as}
3813     check_as <<EOF && enable gnu_as || \
3814         $nogas "GNU assembler not found, install gas-preprocessor"
3815 .macro m n
3816 \n: .int 0
3817 .endm
3818 m x
3819 EOF
3820 fi
3821
3822 check_ldflags -Wl,--as-needed
3823
3824 if check_func dlopen; then
3825     ldl=
3826 elif check_func dlopen -ldl; then
3827     ldl=-ldl
3828 fi
3829
3830 if ! disabled network; then
3831     check_type "sys/types.h sys/socket.h" socklen_t
3832     check_type netdb.h "struct addrinfo"
3833     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3834     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3835     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3836     check_type netinet/in.h "struct sockaddr_in6"
3837     check_type poll.h "struct pollfd"
3838     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3839     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3840     check_type netinet/sctp.h "struct sctp_event_subscribe"
3841     check_func getaddrinfo $network_extralibs
3842     check_func getservbyport $network_extralibs
3843     # Prefer arpa/inet.h over winsock2
3844     if check_header arpa/inet.h ; then
3845         check_func closesocket
3846     elif check_header winsock2.h ; then
3847         check_func_headers winsock2.h closesocket -lws2 &&
3848             network_extralibs="-lws2" ||
3849         { check_func_headers winsock2.h closesocket -lws2_32 &&
3850             network_extralibs="-lws2_32"; }
3851         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3852         check_type ws2tcpip.h socklen_t
3853         check_type ws2tcpip.h "struct addrinfo"
3854         check_type ws2tcpip.h "struct group_source_req"
3855         check_type ws2tcpip.h "struct ip_mreq_source"
3856         check_type ws2tcpip.h "struct ipv6_mreq"
3857         check_type winsock2.h "struct pollfd"
3858         check_type ws2tcpip.h "struct sockaddr_in6"
3859         check_type ws2tcpip.h "struct sockaddr_storage"
3860         check_struct winsock2.h "struct sockaddr" sa_len
3861     else
3862         disable network
3863     fi
3864 fi
3865
3866 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3867 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3868
3869 check_func  access
3870 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3871 check_func  fcntl
3872 check_func  fork
3873 check_func_headers stdlib.h getenv
3874 check_func  gethrtime
3875 check_func  getopt
3876 check_func  getrusage
3877 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3878 check_func  gettimeofday
3879 check_func  inet_aton $network_extralibs
3880 check_func  isatty
3881 check_func  localtime_r
3882 check_func  ${malloc_prefix}memalign            && enable memalign
3883 check_func  mkstemp
3884 check_func  mmap
3885 check_func  mprotect
3886 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3887 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3888 check_func  setrlimit
3889 check_func  strerror_r
3890 check_func  sched_getaffinity
3891 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3892 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3893 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3894 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3895 check_func  sysconf
3896 check_func  sysctl
3897 check_func  usleep
3898 check_func_headers conio.h kbhit
3899 check_func_headers windows.h PeekNamedPipe
3900 check_func_headers io.h setmode
3901 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3902 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3903 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3904 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3905 check_func_headers windows.h GetProcessAffinityMask
3906 check_func_headers windows.h GetProcessTimes
3907 check_func_headers windows.h GetSystemTimeAsFileTime
3908 check_func_headers windows.h MapViewOfFile
3909 check_func_headers windows.h SetConsoleTextAttribute
3910 check_func_headers windows.h Sleep
3911 check_func_headers windows.h VirtualAlloc
3912 check_func_headers glob.h glob
3913
3914 check_header cl/cl.h
3915 check_header direct.h
3916 check_header dlfcn.h
3917 check_header dxva.h
3918 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3919 check_header io.h
3920 check_header libcrystalhd/libcrystalhd_if.h
3921 check_header malloc.h
3922 check_header poll.h
3923 check_header sys/mman.h
3924 check_header sys/param.h
3925 check_header sys/resource.h
3926 check_header sys/select.h
3927 check_header sys/time.h
3928 check_header termios.h
3929 check_header unistd.h
3930 check_header vdpau/vdpau.h
3931 check_header vdpau/vdpau_x11.h
3932 check_header VideoDecodeAcceleration/VDADecoder.h
3933 check_header windows.h
3934 check_header X11/extensions/XvMClib.h
3935 check_header asm/types.h
3936
3937 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3938 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3939
3940 if ! disabled w32threads && ! enabled pthreads; then
3941     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3942 fi
3943
3944 # check for some common methods of building with pthread support
3945 # do this before the optional library checks as some of them require pthreads
3946 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3947     enable pthreads
3948     if check_func pthread_create; then
3949         :
3950     elif check_func pthread_create -pthread; then
3951         add_cflags -pthread
3952         add_extralibs -pthread
3953     elif check_func pthread_create -pthreads; then
3954         add_cflags -pthreads
3955         add_extralibs -pthreads
3956     elif check_func pthread_create -lpthreadGC2; then
3957         add_extralibs -lpthreadGC2
3958     elif ! check_lib pthread.h pthread_create -lpthread; then
3959         disable pthreads
3960     fi
3961 fi
3962
3963 for thread in $THREADS_LIST; do
3964     if enabled $thread; then
3965         test -n "$thread_type" &&
3966             die "ERROR: Only one thread type must be selected." ||
3967             thread_type="$thread"
3968     fi
3969 done
3970
3971 if enabled pthreads; then
3972   check_func pthread_cancel
3973 fi
3974
3975 enabled sync_val_compare_and_swap && enable atomics_gcc
3976 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
3977 enabled MemoryBarrier && enable atomics_win32
3978
3979 check_lib math.h sin -lm && LIBM="-lm"
3980 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3981 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3982
3983 atan2f_args=2
3984 ldexpf_args=2
3985 powf_args=2
3986
3987 for func in $MATH_FUNCS; do
3988     eval check_mathfunc $func \${${func}_args:-1}
3989 done
3990
3991 # these are off by default, so fail if requested and not available
3992 enabled avisynth   && { { check_lib2 "windows.h" LoadLibrary; } ||
3993                         { check_lib2 "dlfcn.h" dlopen -ldl; } ||
3994                         die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
3995 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3996 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3997 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3998 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3999 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4000 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
4001 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
4002 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
4003                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4004                         die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4005 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
4006 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4007 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4008 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4009 enabled libflite   && require2 libflite "flite/flite.h" flite_init $flite_libs
4010 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4011 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4012                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4013                         done || die "ERROR: libgsm not found"; }
4014 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4015 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4016 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4017 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
4018 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4019 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4020 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4021 enabled libopenjpeg && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4022                          check_lib openjpeg.h opj_version -lopenjpeg ||
4023                          die "ERROR: libopenjpeg not found"; }
4024 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4025 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4026 enabled libquvi    && require_pkg_config libquvi quvi/quvi.h quvi_init
4027 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4028 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4029 enabled libshine   && require_pkg_config shine shine/layer3.h shine_encode_frame
4030 enabled libsoxr    && require  libsoxr soxr.h soxr_create -lsoxr
4031 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
4032 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4033     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4034     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4035 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4036 enabled libtwolame && require  libtwolame twolame.h twolame_init -ltwolame &&
4037                       { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4038                         die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4039 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4040 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4041 enabled libvidstab && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4042 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4043 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4044 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4045 enabled libvpx     && {
4046     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4047                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
4048     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4049                                 die "ERROR: libvpx encoder version must be >=0.9.7"; }
4050     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
4051     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4052 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
4053                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4054                         die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4055 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
4056 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
4057 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4058                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4059                         die "ERROR: openal not found"; } &&
4060                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4061                         die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4062 enabled opencl     && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4063                         check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4064                         die "ERROR: opencl not found"; } &&
4065                       { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4066                         check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4067                         die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4068 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4069                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4070                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4071                         die "ERROR: openssl not found"; }
4072
4073 if enabled gnutls; then
4074     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4075     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4076 fi
4077
4078 # libdc1394 check
4079 if enabled libdc1394; then
4080     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4081         enable libdc1394_2; } ||
4082     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4083         enable libdc1394_1; } ||
4084     die "ERROR: No version of libdc1394 found "
4085 fi
4086
4087 SDL_CONFIG="${cross_prefix}sdl-config"
4088 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4089     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4090     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4091     enable sdl
4092 else
4093   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4094     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4095     sdl_libs=$("${SDL_CONFIG}" --libs)
4096     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4097     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4098     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4099     enable sdl
4100   fi
4101 fi
4102 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4103
4104 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4105 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4106 perl --version > /dev/null 2>&1 && enable perl || disable perl
4107 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4108 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4109
4110 check_header linux/fb.h
4111 check_header linux/videodev.h
4112 check_header linux/videodev2.h
4113 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4114
4115 check_header sys/videoio.h
4116
4117 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4118 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4119 # w32api 3.12 had it defined wrong
4120 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4121
4122 check_type "dshow.h" IBaseFilter
4123
4124 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4125 { check_header dev/bktr/ioctl_meteor.h &&
4126   check_header dev/bktr/ioctl_bt848.h; } ||
4127 { check_header machine/ioctl_meteor.h &&
4128   check_header machine/ioctl_bt848.h; } ||
4129 { check_header dev/video/meteor/ioctl_meteor.h &&
4130   check_header dev/video/bktr/ioctl_bt848.h; } ||
4131 check_header dev/ic/bt8xx.h
4132
4133 check_header sndio.h
4134 if check_struct sys/soundcard.h audio_buf_info bytes; then
4135     enable_safe sys/soundcard.h
4136 else
4137     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4138     #include <sys/soundcard.h>
4139     audio_buf_info abc;
4140 EOF
4141 fi
4142 check_header soundcard.h
4143
4144 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4145
4146 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4147     check_func jack_port_get_latency_range -ljack
4148
4149 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4150
4151 if enabled libcdio; then
4152     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4153 fi
4154
4155 enabled x11grab                                           &&
4156 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4157 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4158 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4159
4160 if ! disabled vaapi; then
4161     check_lib va/va.h vaInitialize -lva && {
4162         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
4163         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
4164     } || disable vaapi
4165 fi
4166
4167 enabled vdpau &&
4168     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4169     disable vdpau
4170
4171 # Funny iconv installations are not unusual, so check it after all flags have been set
4172 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4173
4174 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4175
4176 # add some useful compiler flags if supported
4177 check_cflags -Wdeclaration-after-statement
4178 check_cflags -Wall
4179 check_cflags -Wno-parentheses
4180 check_cflags -Wno-switch
4181 check_cflags -Wno-format-zero-length
4182 check_cflags -Wdisabled-optimization
4183 check_cflags -Wpointer-arith
4184 check_cflags -Wredundant-decls
4185 check_cflags -Wno-pointer-sign
4186 check_cflags -Wwrite-strings
4187 check_cflags -Wtype-limits
4188 check_cflags -Wundef
4189 check_cflags -Wmissing-prototypes
4190 check_cflags -Wno-pointer-to-int-cast
4191 check_cflags -Wstrict-prototypes
4192 enabled extra_warnings && check_cflags -Winline
4193
4194 # add some linker flags
4195 check_ldflags -Wl,--warn-common
4196 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4197 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4198
4199 enabled xmm_clobber_test &&
4200     check_ldflags -Wl,--wrap,avcodec_open2              \
4201                   -Wl,--wrap,avcodec_decode_audio4      \
4202                   -Wl,--wrap,avcodec_decode_video2      \
4203                   -Wl,--wrap,avcodec_decode_subtitle2   \
4204                   -Wl,--wrap,avcodec_encode_audio2      \
4205                   -Wl,--wrap,avcodec_encode_video       \
4206                   -Wl,--wrap,avcodec_encode_subtitle    \
4207                   -Wl,--wrap,sws_scale ||
4208     disable xmm_clobber_test
4209
4210 echo "X{};" > $TMPV
4211 if test_ldflags -Wl,--version-script,$TMPV; then
4212     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4213     check_cc <<EOF && enable symver_asm_label
4214 void ff_foo(void) __asm__ ("av_foo@VERSION");
4215 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4216 EOF
4217     check_cc <<EOF && enable symver_gnu_asm
4218 __asm__(".symver ff_foo,av_foo@VERSION");
4219 void ff_foo(void) {}
4220 EOF
4221 fi
4222
4223 if [ -z "$optflags" ]; then
4224     if enabled small; then
4225         optflags=$cflags_size
4226     elif enabled optimizations; then
4227         optflags=$cflags_speed
4228     else
4229         optflags=$cflags_noopt
4230     fi
4231 fi
4232
4233 check_optflags(){
4234     check_cflags "$@"
4235     enabled lto && check_ldflags "$@"
4236 }
4237
4238
4239 if enabled lto; then
4240     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4241     check_cflags  -flto
4242     check_ldflags -flto $cpuflags
4243 fi
4244
4245 check_optflags $optflags
4246 check_optflags -fno-math-errno
4247 check_optflags -fno-signed-zeros
4248
4249 enabled ftrapv && check_cflags -ftrapv
4250
4251 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4252 int x;
4253 EOF
4254
4255
4256 if enabled icc; then
4257     # Just warnings, no remarks
4258     check_cflags -w1
4259     # -wd: Disable following warnings
4260     # 144, 167, 556: -Wno-pointer-sign
4261     # 188: enumerated type mixed with another type
4262     # 1292: attribute "foo" ignored
4263     # 1419: external declaration in primary source file
4264     # 10006: ignoring unknown option -fno-signed-zeros
4265     # 10148: ignoring unknown option -Wno-parentheses
4266     # 10156: ignoring option '-W'; no argument required
4267     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4268     # 11030: Warning unknown option --as-needed
4269     # 10156: ignoring option '-export'; no argument required
4270     check_ldflags -wd10156,11030
4271     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4272     enable ebp_available
4273     if enabled x86_32; then
4274         icc_version=$($cc -dumpversion)
4275         test ${icc_version%%.*} -ge 11 &&
4276             check_cflags -falign-stack=maintain-16-byte ||
4277             disable aligned_stack
4278     fi
4279 elif enabled ccc; then
4280     # disable some annoying warnings
4281     add_cflags -msg_disable bitnotint
4282     add_cflags -msg_disable mixfuncvoid
4283     add_cflags -msg_disable nonstandcast
4284     add_cflags -msg_disable unsupieee
4285 elif enabled gcc; then
4286     check_optflags -fno-tree-vectorize
4287     check_cflags -Werror=implicit-function-declaration
4288     check_cflags -Werror=missing-prototypes
4289     check_cflags -Werror=return-type
4290     check_cflags -Werror=vla
4291 elif enabled llvm_gcc; then
4292     check_cflags -mllvm -stack-alignment=16
4293 elif enabled clang; then
4294     check_cflags -mllvm -stack-alignment=16
4295     check_cflags -Qunused-arguments
4296     check_cflags -Werror=implicit-function-declaration
4297     check_cflags -Werror=missing-prototypes
4298     check_cflags -Werror=return-type
4299 elif enabled armcc; then
4300     # 2523: use of inline assembler is deprecated
4301     add_cflags -W${armcc_opt},--diag_suppress=2523
4302     add_cflags -W${armcc_opt},--diag_suppress=1207
4303     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4304     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4305     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4306     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4307 elif enabled tms470; then
4308     add_cflags -pds=824 -pds=837
4309 elif enabled pathscale; then
4310     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4311 elif enabled msvc; then
4312     enabled x86_32 && disable aligned_stack
4313 fi
4314
4315 case $target_os in
4316     osf1)
4317         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4318     ;;
4319     plan9)
4320         add_cppflags -Dmain=plan9_main
4321     ;;
4322 esac
4323
4324 enable frame_thread_encoder
4325 enabled_any $THREADS_LIST      && enable threads
4326 enabled_any $ATOMICS_LIST      && enable atomics_native
4327
4328 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4329
4330 check_deps $CONFIG_LIST       \
4331            $CONFIG_EXTRA      \
4332            $HAVE_LIST         \
4333            $ALL_COMPONENTS    \
4334
4335
4336 if test $target_os = "haiku"; then
4337     disable memalign
4338     disable posix_memalign
4339 fi
4340
4341 ! enabled_any memalign posix_memalign aligned_malloc &&
4342     enabled_any $need_memalign && enable memalign_hack
4343
4344 # add_dep lib dep
4345 # -> enable ${lib}_deps_${dep}
4346 # -> add $dep to ${lib}_deps only once
4347 add_dep() {
4348     lib=$1
4349     dep=$2
4350     enabled "${lib}_deps_${dep}" && return 0
4351     enable  "${lib}_deps_${dep}"
4352     prepend "${lib}_deps" $dep
4353 }
4354
4355 # merge deps lib components
4356 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4357 merge_deps() {
4358     lib=$1
4359     shift
4360     for comp in $*; do
4361         enabled $comp || continue
4362         eval "dep=\"\$${comp}_deps\""
4363         for d in $dep; do
4364             add_dep $lib $d
4365         done
4366     done
4367 }
4368
4369 merge_deps libavfilter $FILTER_LIST
4370
4371 echo "install prefix            $prefix"
4372 echo "source path               $source_path"
4373 echo "C compiler                $cc"
4374 echo "ARCH                      $arch ($cpu)"
4375 if test "$build_suffix" != ""; then
4376     echo "build suffix              $build_suffix"
4377 fi
4378 if test "$progs_suffix" != ""; then
4379     echo "progs suffix              $progs_suffix"
4380 fi
4381 if test "$extra_version" != ""; then
4382     echo "version string suffix     $extra_version"
4383 fi
4384 echo "big-endian                ${bigendian-no}"
4385 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4386 if enabled x86; then
4387     echo "${yasmexe}                      ${yasm-no}"
4388     echo "MMX enabled               ${mmx-no}"
4389     echo "MMXEXT enabled            ${mmxext-no}"
4390     echo "3DNow! enabled            ${amd3dnow-no}"
4391     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4392     echo "SSE enabled               ${sse-no}"
4393     echo "SSSE3 enabled             ${ssse3-no}"
4394     echo "AVX enabled               ${avx-no}"
4395     echo "FMA4 enabled              ${fma4-no}"
4396     echo "CMOV enabled              ${cmov-no}"
4397     echo "CMOV is fast              ${fast_cmov-no}"
4398     echo "EBX available             ${ebx_available-no}"
4399     echo "EBP available             ${ebp_available-no}"
4400 fi
4401 if enabled arm; then
4402     echo "ARMv5TE enabled           ${armv5te-no}"
4403     echo "ARMv6 enabled             ${armv6-no}"
4404     echo "ARMv6T2 enabled           ${armv6t2-no}"
4405     echo "VFP enabled               ${vfp-no}"
4406     echo "NEON enabled              ${neon-no}"
4407     echo "THUMB enabled             ${thumb-no}"
4408 fi
4409 if enabled mips; then
4410     echo "MIPS FPU enabled          ${mipsfpu-no}"
4411     echo "MIPS32R2 enabled          ${mips32r2-no}"
4412     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4413     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4414 fi
4415 if enabled ppc; then
4416     echo "AltiVec enabled           ${altivec-no}"
4417     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4418     echo "dcbzl available           ${dcbzl-no}"
4419 fi
4420 if enabled sparc; then
4421     echo "VIS enabled               ${vis-no}"
4422 fi
4423 echo "debug symbols             ${debug-no}"
4424 echo "strip symbols             ${stripping-no}"
4425 echo "optimize for size         ${small-no}"
4426 echo "optimizations             ${optimizations-no}"
4427 echo "static                    ${static-no}"
4428 echo "shared                    ${shared-no}"
4429 echo "postprocessing support    ${postproc-no}"
4430 echo "new filter support        ${avfilter-no}"
4431 echo "network support           ${network-no}"
4432 echo "threading support         ${thread_type-no}"
4433 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4434 echo "SDL support               ${sdl-no}"
4435 echo "opencl enabled            ${opencl-no}"
4436 echo "libshine enabled          ${libshine-no}"
4437 echo "texi2html enabled         ${texi2html-no}"
4438 echo "perl enabled              ${perl-no}"
4439 echo "pod2man enabled           ${pod2man-no}"
4440 echo "makeinfo enabled          ${makeinfo-no}"
4441 test -n "$random_seed" &&
4442     echo "random seed               ${random_seed}"
4443 echo
4444
4445 echo "External libraries:"
4446 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4447 echo
4448
4449 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4450     echo "Enabled ${type}s:"
4451     eval list=\$$(toupper $type)_LIST
4452     print_enabled '_*' $list | print_3_columns
4453     echo
4454 done
4455
4456 license="LGPL version 2.1 or later"
4457 if enabled nonfree; then
4458     license="nonfree and unredistributable"
4459 elif enabled gplv3; then
4460     license="GPL version 3 or later"
4461 elif enabled lgplv3; then
4462     license="LGPL version 3 or later"
4463 elif enabled gpl; then
4464     license="GPL version 2 or later"
4465 fi
4466
4467 echo "License: $license"
4468
4469 echo "Creating config.mak, config.h, and doc/config.texi..."
4470
4471 test -e Makefile || $ln_s "$source_path/Makefile" .
4472
4473 enabled stripping || strip="echo skipping strip"
4474
4475 config_files="$TMPH config.mak doc/config.texi"
4476
4477 cat > config.mak <<EOF
4478 # Automatically generated by configure - do not modify!
4479 ifndef FFMPEG_CONFIG_MAK
4480 FFMPEG_CONFIG_MAK=1
4481 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4482 prefix=$prefix
4483 LIBDIR=\$(DESTDIR)$libdir
4484 SHLIBDIR=\$(DESTDIR)$shlibdir
4485 INCDIR=\$(DESTDIR)$incdir
4486 BINDIR=\$(DESTDIR)$bindir
4487 DATADIR=\$(DESTDIR)$datadir
4488 MANDIR=\$(DESTDIR)$mandir
4489 SRC_PATH=$source_path
4490 ifndef MAIN_MAKEFILE
4491 SRC_PATH:=\$(SRC_PATH:.%=..%)
4492 endif
4493 CC_IDENT=$cc_ident
4494 ARCH=$arch
4495 CC=$cc
4496 CXX=$cxx
4497 AS=$as
4498 LD=$ld
4499 DEPCC=$dep_cc
4500 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4501 DEPAS=$as
4502 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4503 YASM=$yasmexe
4504 DEPYASM=$yasmexe
4505 AR=$ar
4506 ARFLAGS=$arflags
4507 AR_O=$ar_o
4508 RANLIB=$ranlib
4509 CP=cp -p
4510 LN_S=$ln_s
4511 STRIP=$strip
4512 CPPFLAGS=$CPPFLAGS
4513 CFLAGS=$CFLAGS
4514 CXXFLAGS=$CXXFLAGS
4515 ASFLAGS=$ASFLAGS
4516 AS_C=$AS_C
4517 AS_O=$AS_O
4518 CC_C=$CC_C
4519 CC_E=$CC_E
4520 CC_O=$CC_O
4521 CXX_C=$CXX_C
4522 CXX_O=$CXX_O
4523 LD_O=$LD_O
4524 LD_LIB=$LD_LIB
4525 LD_PATH=$LD_PATH
4526 DLLTOOL=$dlltool
4527 LDFLAGS=$LDFLAGS
4528 LDFLAGS-ffserver=$FFSERVERLDFLAGS
4529 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4530 YASMFLAGS=$YASMFLAGS
4531 BUILDSUF=$build_suffix
4532 PROGSSUF=$progs_suffix
4533 FULLNAME=$FULLNAME
4534 LIBPREF=$LIBPREF
4535 LIBSUF=$LIBSUF
4536 LIBNAME=$LIBNAME
4537 SLIBPREF=$SLIBPREF
4538 SLIBSUF=$SLIBSUF
4539 EXESUF=$EXESUF
4540 EXTRA_VERSION=$extra_version
4541 CCDEP=$CCDEP
4542 CXXDEP=$CXXDEP
4543 CCDEP_FLAGS=$CCDEP_FLAGS
4544 ASDEP=$ASDEP
4545 ASDEP_FLAGS=$ASDEP_FLAGS
4546 CC_DEPFLAGS=$CC_DEPFLAGS
4547 AS_DEPFLAGS=$AS_DEPFLAGS
4548 HOSTCC=$host_cc
4549 HOSTLD=$host_ld
4550 HOSTCFLAGS=$host_cflags
4551 HOSTCPPFLAGS=$host_cppflags
4552 HOSTEXESUF=$HOSTEXESUF
4553 HOSTLDFLAGS=$host_ldflags
4554 HOSTLIBS=$host_libs
4555 DEPHOSTCC=$host_cc
4556 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4557 HOSTCCDEP=$HOSTCCDEP
4558 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4559 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4560 HOSTCC_C=$HOSTCC_C
4561 HOSTCC_O=$HOSTCC_O
4562 HOSTLD_O=$HOSTLD_O
4563 TARGET_EXEC=$target_exec $target_exec_args
4564 TARGET_PATH=$target_path
4565 LIBS-ffplay=$sdl_libs
4566 CFLAGS-ffplay=$sdl_cflags
4567 ZLIB=$($ldflags_filter -lz)
4568 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4569 EXTRALIBS=$extralibs
4570 COMPAT_OBJS=$compat_objs
4571 EXEOBJS=$exeobjs
4572 INSTALL=$install
4573 LIBTARGET=${LIBTARGET}
4574 SLIBNAME=${SLIBNAME}
4575 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4576 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4577 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4578 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4579 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4580 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4581 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4582 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4583 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
4584 NOREDZONE_FLAGS=$noredzone_flags
4585 EOF
4586
4587 get_version(){
4588     lcname=lib${1}
4589     name=$(toupper $lcname)
4590     file=$source_path/$lcname/version.h
4591     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4592     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4593     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4594     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4595     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4596 }
4597
4598 map 'get_version $v' $LIBRARY_LIST
4599
4600 cat > $TMPH <<EOF
4601 /* Automatically generated by configure - do not modify! */
4602 #ifndef FFMPEG_CONFIG_H
4603 #define FFMPEG_CONFIG_H
4604 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
4605 #define FFMPEG_LICENSE "$(c_escape $license)"
4606 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
4607 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4608 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4609 #define av_restrict $_restrict
4610 #define EXTERN_PREFIX "${extern_prefix}"
4611 #define EXTERN_ASM ${extern_prefix}
4612 #define SLIBSUF "$SLIBSUF"
4613 #define HAVE_MMX2 HAVE_MMXEXT
4614 EOF
4615
4616 test -n "$assert_level" &&
4617     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
4618
4619 test -n "$malloc_prefix" &&
4620     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4621
4622 if enabled yasm; then
4623     append config_files $TMPASM
4624     printf '' >$TMPASM
4625 fi
4626
4627 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4628
4629
4630 mkdir -p doc
4631 echo "@c auto-generated by configure" > doc/config.texi
4632
4633 print_config ARCH_   "$config_files" $ARCH_LIST
4634 print_config HAVE_   "$config_files" $HAVE_LIST
4635 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4636                                      $CONFIG_EXTRA      \
4637                                      $ALL_COMPONENTS    \
4638
4639 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
4640 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
4641
4642 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4643 cp_if_changed $TMPH config.h
4644 touch .config
4645
4646 enabled yasm && cp_if_changed $TMPASM config.asm
4647
4648 cat > $TMPH <<EOF
4649 /* Generated by ffconf */
4650 #ifndef AVUTIL_AVCONFIG_H
4651 #define AVUTIL_AVCONFIG_H
4652 EOF
4653
4654 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4655
4656 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4657
4658 cp_if_changed $TMPH libavutil/avconfig.h
4659
4660 if test -n "$WARNINGS"; then
4661     printf "\n$WARNINGS"
4662     enabled fatal_warnings && exit 1
4663 fi
4664
4665 # build pkg-config files
4666
4667 pkgconfig_generate(){
4668     name=$1
4669     shortname=${name#lib}${build_suffix}
4670     comment=$2
4671     version=$3
4672     libs=$4
4673     requires=$5
4674     enabled ${name#lib} || return 0
4675     mkdir -p $name
4676     cat <<EOF > $name/$name${build_suffix}.pc
4677 prefix=$prefix
4678 exec_prefix=\${prefix}
4679 libdir=$libdir
4680 includedir=$incdir
4681
4682 Name: $name
4683 Description: $comment
4684 Version: $version
4685 Requires: $(enabled shared || echo $requires)
4686 Requires.private: $(enabled shared && echo $requires)
4687 Conflicts:
4688 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4689 Libs.private: $(enabled shared && echo $libs)
4690 Cflags: -I\${includedir}
4691 EOF
4692
4693 mkdir -p doc/examples/pc-uninstalled
4694 includedir=${source_path}
4695 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
4696     cat <<EOF > doc/examples/pc-uninstalled/$name.pc
4697 prefix=
4698 exec_prefix=
4699 libdir=\${pcfiledir}/../../../$name
4700 includedir=${includedir}
4701
4702 Name: $name
4703 Description: $comment
4704 Version: $version
4705 Requires: $requires
4706 Conflicts:
4707 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4708 Cflags: -I\${includedir}
4709 EOF
4710 }
4711
4712 lavfi_libs="libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4713 enabled libavfilter_deps_avcodec    && prepend lavfi_libs "libavcodec${build_suffix} = $LIBAVCODEC_VERSION,"
4714 enabled libavfilter_deps_avformat   && prepend lavfi_libs "libavformat${build_suffix} = $LIBAVFORMAT_VERSION,"
4715 enabled libavfilter_deps_avresample && prepend lavfi_libs "libavresample${build_suffix} = $LIBAVRESAMPLE_VERSION,"
4716 enabled libavfilter_deps_swscale    && prepend lavfi_libs "libswscale${build_suffix} = $LIBSWSCALE_VERSION,"
4717 enabled libavfilter_deps_swresample && prepend lavfi_libs "libswresample${build_suffix} = $LIBSWRESAMPLE_VERSION,"
4718 enabled libavfilter_deps_postproc   && prepend lavfi_libs "libpostproc${build_suffix} = $LIBPOSTPROC_VERSION,"
4719 lavfi_libs=${lavfi_libs%, }
4720
4721 lavd_libs="libavformat${build_suffix} = $LIBAVFORMAT_VERSION"
4722 enabled lavfi_indev && prepend lavd_libs "libavfilter${build_suffix} = $LIBAVFILTER_VERSION,"
4723
4724 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4725 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4726 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec${build_suffix} = $LIBAVCODEC_VERSION"
4727 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$lavd_libs"
4728 pkgconfig_generate libavfilter "FFmpeg audio/video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$lavfi_libs"
4729 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4730 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4731 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4732 pkgconfig_generate libswresample "FFmpeg audio resampling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil${build_suffix} = $LIBAVUTIL_VERSION"
4733
4734 fix_ffmpeg_remote(){
4735     git_remote_from=$1
4736     git_remote_to=$2
4737     fixme_remote=$(git --git-dir=$source_path/.git --work-tree=$source_path remote -v | grep $git_remote_from | cut -f 1 | sort | uniq)
4738     if [ "$fixme_remote" != "" ]; then
4739         echolog "
4740 Outdated domain in git config, the official domain for ffmpeg git is since
4741 November 2011, source.ffmpeg.org, both the old and the new point to the same
4742 repository and server. To update it enter the following commands:
4743 "
4744         for remote in $fixme_remote; do
4745             echolog "git remote set-url $remote $git_remote_to"
4746         done
4747     fi
4748 }
4749
4750 if test -f "$source_path/.git/config"; then
4751     remote_from=git.videolan.org
4752     remote_to=source.ffmpeg.org
4753     fix_ffmpeg_remote git@$remote_from:ffmpeg   git@$remote_to:ffmpeg
4754     fix_ffmpeg_remote git://$remote_from/ffmpeg git://$remote_to/ffmpeg
4755 fi