lavf: remove the libnut library wrapper
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
239   --enable-libopencv       enable video filtering via libopencv [no]
240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
242   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librsvg         enable SVG rasterization via librsvg [no]
246   --enable-librubberband   enable rubberband needed for rubberband filter [no]
247   --enable-librtmp         enable RTMP[E] support via librtmp [no]
248   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
249   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
250   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
251   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
252   --enable-libsoxr         enable Include libsoxr resampling [no]
253   --enable-libspeex        enable Speex de/encoding via libspeex [no]
254   --enable-libssh          enable SFTP protocol via libssh [no]
255   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
256   --enable-libtheora       enable Theora encoding via libtheora [no]
257   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
261   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
262                            native implementation exists [no]
263   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
264   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
265   --enable-libwebp         enable WebP encoding via libwebp [no]
266   --enable-libx264         enable H.264 encoding via x264 [no]
267   --enable-libx265         enable HEVC encoding via x265 [no]
268   --enable-libxavs         enable AVS encoding via xavs [no]
269   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
270   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
271   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
272   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
273   --enable-libxvid         enable Xvid encoding via xvidcore,
274                            native MPEG-4/Xvid encoder exists [no]
275   --enable-libzimg         enable z.lib, needed for zscale filter [no]
276   --enable-libzmq          enable message passing via libzmq [no]
277   --enable-libzvbi         enable teletext support via libzvbi [no]
278   --disable-lzma           disable lzma [autodetect]
279   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
280   --enable-mediacodec      enable Android MediaCodec support [no]
281   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
282   --enable-openal          enable OpenAL 1.1 capture support [no]
283   --enable-opencl          enable OpenCL code
284   --enable-opengl          enable OpenGL rendering [no]
285   --enable-openssl         enable openssl, needed for https support
286                            if gnutls is not used [no]
287   --disable-schannel       disable SChannel SSP, needed for TLS support on
288                            Windows if openssl and gnutls are not used [autodetect]
289   --disable-sdl2           disable sdl2 [autodetect]
290   --disable-securetransport disable Secure Transport, needed for TLS support
291                            on OSX if openssl and gnutls are not used [autodetect]
292   --disable-xlib           disable xlib [autodetect]
293   --disable-zlib           disable zlib [autodetect]
294
295   The following libraries provide various hardware acceleration features:
296   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
297   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
298   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
299   --disable-cuvid          disable Nvidia CUVID support [autodetect]
300   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
301   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
302   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
303   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
304   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
305   --disable-nvenc          disable Nvidia video encoding code [autodetect]
306   --enable-omx             enable OpenMAX IL code [no]
307   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
308   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
309   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
310   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
311   --disable-videotoolbox   disable VideoToolbox code [autodetect]
312
313 Toolchain options:
314   --arch=ARCH              select architecture [$arch]
315   --cpu=CPU                select the minimum required CPU (affects
316                            instruction selection, may crash on older CPUs)
317   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
318   --progs-suffix=SUFFIX    program name suffix []
319   --enable-cross-compile   assume a cross-compiler is used
320   --sysroot=PATH           root of cross-build tree
321   --sysinclude=PATH        location of cross-build system headers
322   --target-os=OS           compiler targets OS [$target_os]
323   --target-exec=CMD        command to run executables on target
324   --target-path=DIR        path to view of build directory on target
325   --target-samples=DIR     path to samples directory on target
326   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
327   --toolchain=NAME         set tool defaults according to NAME
328   --nm=NM                  use nm tool NM [$nm_default]
329   --ar=AR                  use archive tool AR [$ar_default]
330   --as=AS                  use assembler AS [$as_default]
331   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
332   --strip=STRIP            use strip tool STRIP [$strip_default]
333   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
334   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
335   --cc=CC                  use C compiler CC [$cc_default]
336   --cxx=CXX                use C compiler CXX [$cxx_default]
337   --objcc=OCC              use ObjC compiler OCC [$cc_default]
338   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
339   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
340   --ld=LD                  use linker LD [$ld_default]
341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
345   --host-cc=HOSTCC         use host C compiler HOSTCC
346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
348   --host-ld=HOSTLD         use host linker HOSTLD
349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
350   --host-libs=HLIBS        use libs HLIBS when linking for host
351   --host-os=OS             compiler host OS [$target_os]
352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
359   --extra-version=STRING   version string suffix []
360   --optflags=OPTFLAGS      override optimization-related compiler flags
361   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
362   --build-suffix=SUFFIX    library name suffix []
363   --enable-pic             build position-independent code
364   --enable-thumb           compile for Thumb instruction set
365   --enable-lto             use link-time optimization
366   --env="ENV=override"     override the environment variables
367
368 Advanced options (experts only):
369   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
370   --custom-allocator=NAME  use a supported custom allocator
371   --disable-symver         disable symbol versioning
372   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
373   --disable-safe-bitstream-reader
374                            disable buffer boundary checking in bitreaders
375                            (faster, but may crash)
376   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
377
378 Optimization options (experts only):
379   --disable-asm            disable all assembly optimizations
380   --disable-altivec        disable AltiVec optimizations
381   --disable-vsx            disable VSX optimizations
382   --disable-power8         disable POWER8 optimizations
383   --disable-amd3dnow       disable 3DNow! optimizations
384   --disable-amd3dnowext    disable 3DNow! extended optimizations
385   --disable-mmx            disable MMX optimizations
386   --disable-mmxext         disable MMXEXT optimizations
387   --disable-sse            disable SSE optimizations
388   --disable-sse2           disable SSE2 optimizations
389   --disable-sse3           disable SSE3 optimizations
390   --disable-ssse3          disable SSSE3 optimizations
391   --disable-sse4           disable SSE4 optimizations
392   --disable-sse42          disable SSE4.2 optimizations
393   --disable-avx            disable AVX optimizations
394   --disable-xop            disable XOP optimizations
395   --disable-fma3           disable FMA3 optimizations
396   --disable-fma4           disable FMA4 optimizations
397   --disable-avx2           disable AVX2 optimizations
398   --disable-aesni          disable AESNI optimizations
399   --disable-armv5te        disable armv5te optimizations
400   --disable-armv6          disable armv6 optimizations
401   --disable-armv6t2        disable armv6t2 optimizations
402   --disable-vfp            disable VFP optimizations
403   --disable-neon           disable NEON optimizations
404   --disable-inline-asm     disable use of inline assembly
405   --disable-yasm           disable use of nasm/yasm assembly
406   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
407   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
408   --disable-msa            disable MSA optimizations
409   --disable-mipsfpu        disable floating point MIPS optimizations
410   --disable-mmi            disable Loongson SIMD optimizations
411   --disable-fast-unaligned consider unaligned accesses slow
412
413 Developer options (useful when working on FFmpeg itself):
414   --disable-debug          disable debugging symbols
415   --enable-debug=LEVEL     set the debug level [$debuglevel]
416   --disable-optimizations  disable compiler optimizations
417   --enable-extra-warnings  enable more compiler warnings
418   --disable-stripping      disable stripping of executables and shared libraries
419   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
420                            2 causes a slowdown at runtime.
421   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
422   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
423                            leaks and errors, using the specified valgrind binary.
424                            Cannot be combined with --target-exec
425   --enable-ftrapv          Trap arithmetic overflows
426   --samples=PATH           location of test samples for FATE, if not set use
427                            \$FATE_SAMPLES at make invocation time.
428   --enable-neon-clobber-test check NEON registers for clobbering (should be
429                            used only for debugging purposes)
430   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
431                            should be used only for debugging purposes)
432   --enable-random          randomly enable/disable components
433   --disable-random
434   --enable-random=LIST     randomly enable/disable specific components or
435   --disable-random=LIST    component groups. LIST is a comma-separated list
436                            of NAME[:PROB] entries where NAME is a component
437                            (group) and PROB the probability associated with
438                            NAME (default 0.5).
439   --random-seed=VALUE      seed value for --enable/disable-random
440   --disable-valgrind-backtrace do not print a backtrace under Valgrind
441                            (only applies to --disable-optimizations builds)
442   --enable-osfuzz          Enable building fuzzer tool
443   --libfuzzer=PATH         path to libfuzzer
444   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
445                            in the name) of tests whose result is ignored
446
447 NOTE: Object files are built at the place where configure is launched.
448 EOF
449   exit 0
450 }
451
452 quotes='""'
453 if test -t 1 && which tput >/dev/null 2>&1; then
454     ncolors=$(tput colors)
455     if test -n "$ncolors" && test $ncolors -ge 8; then
456         bold_color=$(tput bold)
457         warn_color=$(tput setaf 3)
458         error_color=$(tput setaf 1)
459         reset_color=$(tput sgr0)
460     fi
461     # 72 used instead of 80 since that's the default of pr
462     ncols=$(tput cols)
463 fi
464 : ${ncols:=72}
465
466 log(){
467     echo "$@" >> $logfile
468 }
469
470 log_file(){
471     log BEGIN $1
472     pr -n -t $1 >> $logfile
473     log END $1
474 }
475
476 warn(){
477     log "WARNING: $*"
478     WARNINGS="${WARNINGS}WARNING: $*\n"
479 }
480
481 die(){
482     log "$@"
483     echo "$error_color$bold_color$@$reset_color"
484     cat <<EOF
485
486 If you think configure made a mistake, make sure you are using the latest
487 version from Git.  If the latest version fails, report the problem to the
488 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
489 EOF
490     if disabled logging; then
491         cat <<EOF
492 Rerun configure with logging enabled (do not use --disable-logging), and
493 include the log this produces with your report.
494 EOF
495     else
496         cat <<EOF
497 Include the log file "$logfile" produced by configure as this will help
498 solve the problem.
499 EOF
500     fi
501     exit 1
502 }
503
504 # Avoid locale weirdness, besides we really just want to translate ASCII.
505 toupper(){
506     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
507 }
508
509 tolower(){
510     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
511 }
512
513 c_escape(){
514     echo "$*" | sed 's/["\\]/\\\0/g'
515 }
516
517 sh_quote(){
518     v=$(echo "$1" | sed "s/'/'\\\\''/g")
519     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
520     echo "$v"
521 }
522
523 cleanws(){
524     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
525 }
526
527 filter(){
528     pat=$1
529     shift
530     for v; do
531         eval "case $v in $pat) printf '%s ' $v ;; esac"
532     done
533 }
534
535 filter_out(){
536     pat=$1
537     shift
538     for v; do
539         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
540     done
541 }
542
543 map(){
544     m=$1
545     shift
546     for v; do eval $m; done
547 }
548
549 add_suffix(){
550     suffix=$1
551     shift
552     for v; do echo ${v}${suffix}; done
553 }
554
555 set_all(){
556     value=$1
557     shift
558     for var in $*; do
559         eval $var=$value
560     done
561 }
562
563 set_weak(){
564     value=$1
565     shift
566     for var; do
567         eval : \${$var:=$value}
568     done
569 }
570
571 sanitize_var_name(){
572     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
573 }
574
575 set_safe(){
576     var=$1
577     shift
578     eval $(sanitize_var_name "$var")='$*'
579 }
580
581 get_safe(){
582     eval echo \$$(sanitize_var_name "$1")
583 }
584
585 pushvar(){
586     for pvar in $*; do
587         eval level=\${${pvar}_level:=0}
588         eval ${pvar}_${level}="\$$pvar"
589         eval ${pvar}_level=$(($level+1))
590     done
591 }
592
593 popvar(){
594     for pvar in $*; do
595         eval level=\${${pvar}_level:-0}
596         test $level = 0 && continue
597         eval level=$(($level-1))
598         eval $pvar="\${${pvar}_${level}}"
599         eval ${pvar}_level=$level
600         eval unset ${pvar}_${level}
601     done
602 }
603
604 request(){
605     for var in $*; do
606         eval ${var}_requested=yes
607         eval $var=
608     done
609 }
610
611 enable(){
612     set_all yes $*
613 }
614
615 disable(){
616     set_all no $*
617 }
618
619 enable_weak(){
620     set_weak yes $*
621 }
622
623 disable_weak(){
624     set_weak no $*
625 }
626
627 enable_safe(){
628     for var; do
629         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
630     done
631 }
632
633 disable_safe(){
634     for var; do
635         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
636     done
637 }
638
639 do_enable_deep(){
640     for var; do
641         enabled $var && continue
642         eval sel="\$${var}_select"
643         eval sgs="\$${var}_suggest"
644         pushvar var sgs
645         enable_deep $sel
646         popvar sgs
647         enable_deep_weak $sgs
648         popvar var
649     done
650 }
651
652 enable_deep(){
653     do_enable_deep $*
654     enable $*
655 }
656
657 enable_deep_weak(){
658     for var; do
659         disabled $var && continue
660         pushvar var
661         do_enable_deep $var
662         popvar var
663         enable_weak $var
664     done
665 }
666
667 requested(){
668     test "${1#!}" = "$1" && op='=' || op=!=
669     eval test "x\$${1#!}_requested" $op "xyes"
670 }
671
672 enabled(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}" $op "xyes"
675 }
676
677 disabled(){
678     test "${1#!}" = "$1" && op='=' || op=!=
679     eval test "x\$${1#!}" $op "xno"
680 }
681
682 enabled_all(){
683     for opt; do
684         enabled $opt || return 1
685     done
686 }
687
688 disabled_all(){
689     for opt; do
690         disabled $opt || return 1
691     done
692 }
693
694 enabled_any(){
695     for opt; do
696         enabled $opt && return 0
697     done
698 }
699
700 disabled_any(){
701     for opt; do
702         disabled $opt && return 0
703     done
704     return 1
705 }
706
707 set_default(){
708     for opt; do
709         eval : \${$opt:=\$${opt}_default}
710     done
711 }
712
713 is_in(){
714     value=$1
715     shift
716     for var in $*; do
717         [ $var = $value ] && return 0
718     done
719     return 1
720 }
721
722 do_check_deps(){
723     for cfg; do
724         cfg="${cfg#!}"
725         enabled ${cfg}_checking && die "Circular dependency for $cfg."
726         disabled ${cfg}_checking && continue
727         enable ${cfg}_checking
728         append allopts $cfg
729
730         eval dep_all="\$${cfg}_deps"
731         eval dep_any="\$${cfg}_deps_any"
732         eval dep_sel="\$${cfg}_select"
733         eval dep_sgs="\$${cfg}_suggest"
734         eval dep_ifa="\$${cfg}_if"
735         eval dep_ifn="\$${cfg}_if_any"
736
737         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
738         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
739         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
740
741         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
742         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
743         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
744         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
745         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
746
747         if enabled $cfg; then
748             enable_deep $dep_sel
749             enable_deep_weak $dep_sgs
750         fi
751
752         disable ${cfg}_checking
753     done
754 }
755
756 check_deps(){
757     unset allopts
758
759     do_check_deps "$@"
760
761     for cfg in $allopts; do
762         enabled $cfg || continue
763         eval dep_extralibs="\$${cfg}_extralibs"
764         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
765     done
766 }
767
768 print_config(){
769     pfx=$1
770     files=$2
771     shift 2
772     map 'eval echo "$v \${$v:-no}"' "$@" |
773     awk "BEGIN { split(\"$files\", files) }
774         {
775             c = \"$pfx\" toupper(\$1);
776             v = \$2;
777             sub(/yes/, 1, v);
778             sub(/no/,  0, v);
779             for (f in files) {
780                 file = files[f];
781                 if (file ~ /\\.h\$/) {
782                     printf(\"#define %s %d\\n\", c, v) >>file;
783                 } else if (file ~ /\\.asm\$/) {
784                     printf(\"%%define %s %d\\n\", c, v) >>file;
785                 } else if (file ~ /\\.mak\$/) {
786                     n = -v ? \"\" : \"!\";
787                     printf(\"%s%s=yes\\n\", n, c) >>file;
788                 } else if (file ~ /\\.texi\$/) {
789                     pre = -v ? \"\" : \"@c \";
790                     yesno = \$2;
791                     c2 = tolower(c);
792                     gsub(/_/, \"-\", c2);
793                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
794                 }
795             }
796         }"
797 }
798
799 print_enabled(){
800     suf=$1
801     shift
802     for v; do
803         enabled $v && printf "%s\n" ${v%$suf}
804     done
805 }
806
807 append(){
808     var=$1
809     shift
810     eval "$var=\"\$$var $*\""
811 }
812
813 prepend(){
814     var=$1
815     shift
816     eval "$var=\"$* \$$var\""
817 }
818
819 unique(){
820     var=$1
821     uniq_list=""
822     for tok in $(eval echo \$$var); do
823         uniq_list="$(filter_out $tok $uniq_list) $tok"
824     done
825     eval "$var=\"${uniq_list}\""
826 }
827
828 add_cppflags(){
829     append CPPFLAGS "$@"
830 }
831
832 add_cflags(){
833     append CFLAGS $($cflags_filter "$@")
834 }
835
836 add_cflags_headers(){
837     append CFLAGS_HEADERS $($cflags_filter "$@")
838 }
839
840 add_cxxflags(){
841     append CXXFLAGS $($cflags_filter "$@")
842 }
843
844 add_asflags(){
845     append ASFLAGS $($asflags_filter "$@")
846 }
847
848 add_objcflags(){
849     append OBJCFLAGS $($objcflags_filter "$@")
850 }
851
852 add_ldflags(){
853     append LDFLAGS $($ldflags_filter "$@")
854 }
855
856 add_ldexeflags(){
857     append LDEXEFLAGS $($ldflags_filter "$@")
858 }
859
860 add_ldlibflags(){
861     append LDLIBFLAGS $($ldflags_filter "$@")
862 }
863
864 add_stripflags(){
865     append ASMSTRIPFLAGS "$@"
866 }
867
868 add_extralibs(){
869     prepend extralibs $($ldflags_filter "$@")
870 }
871
872 add_host_cppflags(){
873     append host_cppflags "$@"
874 }
875
876 add_host_cflags(){
877     append host_cflags $($host_cflags_filter "$@")
878 }
879
880 add_host_ldflags(){
881     append host_ldflags $($host_ldflags_filter "$@")
882 }
883
884 add_compat(){
885     append compat_objs $1
886     shift
887     map 'add_cppflags -D$v' "$@"
888 }
889
890 check_cmd(){
891     log "$@"
892     "$@" >> $logfile 2>&1
893 }
894
895 check_stat(){
896     log check_stat "$@"
897     stat "$1" >> $logfile 2>&1
898 }
899
900 cc_o(){
901     eval printf '%s\\n' $CC_O
902 }
903
904 cc_e(){
905     eval printf '%s\\n' $CC_E
906 }
907
908 check_cc(){
909     log check_cc "$@"
910     cat > $TMPC
911     log_file $TMPC
912     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
913 }
914
915 check_cxx(){
916     log check_cxx "$@"
917     cat > $TMPCPP
918     log_file $TMPCPP
919     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
920 }
921
922 check_objcc(){
923     log check_objcc "$@"
924     cat > $TMPM
925     log_file $TMPM
926     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
927 }
928
929 check_cpp(){
930     log check_cpp "$@"
931     cat > $TMPC
932     log_file $TMPC
933     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
934 }
935
936 as_o(){
937     eval printf '%s\\n' $AS_O
938 }
939
940 check_as(){
941     log check_as "$@"
942     cat > $TMPS
943     log_file $TMPS
944     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
945 }
946
947 check_inline_asm(){
948     log check_inline_asm "$@"
949     name="$1"
950     code="$2"
951     shift 2
952     disable $name
953     check_cc "$@" <<EOF && enable $name
954 void foo(void){ __asm__ volatile($code); }
955 EOF
956 }
957
958 check_inline_asm_flags(){
959     log check_inline_asm_flags "$@"
960     name="$1"
961     code="$2"
962     flags=''
963     shift 2
964     while [ "$1" != "" ]; do
965       append flags $1
966       shift
967     done;
968     disable $name
969     cat > $TMPC <<EOF
970 void foo(void){ __asm__ volatile($code); }
971 EOF
972     log_file $TMPC
973     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
974     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
975 }
976
977 check_insn(){
978     log check_insn "$@"
979     check_inline_asm ${1}_inline "\"$2\""
980     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
981 }
982
983 check_yasm(){
984     log check_yasm "$@"
985     echo "$1" > $TMPS
986     log_file $TMPS
987     shift 1
988     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
989 }
990
991 ld_o(){
992     eval printf '%s\\n' $LD_O
993 }
994
995 check_ld(){
996     log check_ld "$@"
997     type=$1
998     shift 1
999     flags=$(filter_out '-l*|*.so' $@)
1000     libs=$(filter '-l*|*.so' $@)
1001     check_$type $($cflags_filter $flags) || return
1002     flags=$($ldflags_filter $flags)
1003     libs=$($ldflags_filter $libs)
1004     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1005 }
1006
1007 print_include(){
1008     hdr=$1
1009     test "${hdr%.h}" = "${hdr}" &&
1010         echo "#include $hdr"    ||
1011         echo "#include <$hdr>"
1012 }
1013
1014 check_code(){
1015     log check_code "$@"
1016     check=$1
1017     headers=$2
1018     code=$3
1019     shift 3
1020     {
1021         for hdr in $headers; do
1022             print_include $hdr
1023         done
1024         echo "int main(void) { $code; return 0; }"
1025     } | check_$check "$@"
1026 }
1027
1028 check_cppflags(){
1029     log check_cppflags "$@"
1030     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1031 int x;
1032 EOF
1033 }
1034
1035 test_cflags(){
1036     log test_cflags "$@"
1037     set -- $($cflags_filter "$@")
1038     check_cc "$@" <<EOF
1039 int x;
1040 EOF
1041 }
1042
1043 check_cflags(){
1044     log check_cflags "$@"
1045     test_cflags "$@" && add_cflags "$@"
1046 }
1047
1048 check_cxxflags(){
1049     log check_cxxflags "$@"
1050     set -- $($cflags_filter "$@")
1051     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1052 int x;
1053 EOF
1054 }
1055
1056 test_objcflags(){
1057     log test_objcflags "$@"
1058     set -- $($objcflags_filter "$@")
1059     check_objcc "$@" <<EOF
1060 int x;
1061 EOF
1062 }
1063
1064 check_objcflags(){
1065     log check_objcflags "$@"
1066     test_objcflags "$@" && add_objcflags "$@"
1067 }
1068
1069 test_ldflags(){
1070     log test_ldflags "$@"
1071     check_ld "cc" "$@" <<EOF
1072 int main(void){ return 0; }
1073 EOF
1074 }
1075
1076 check_ldflags(){
1077     log check_ldflags "$@"
1078     test_ldflags "$@" && add_ldflags "$@"
1079 }
1080
1081 test_stripflags(){
1082     log test_stripflags "$@"
1083     # call check_cc to get a fresh TMPO
1084     check_cc <<EOF
1085 int main(void) { return 0; }
1086 EOF
1087     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1088 }
1089
1090 check_stripflags(){
1091     log check_stripflags "$@"
1092     test_stripflags "$@" && add_stripflags "$@"
1093 }
1094
1095 check_header(){
1096     log check_header "$@"
1097     header=$1
1098     shift
1099     disable_safe $header
1100     check_cpp "$@" <<EOF && enable_safe $header
1101 #include <$header>
1102 int x;
1103 EOF
1104 }
1105
1106 check_header_objcc(){
1107     log check_header_objcc "$@"
1108     rm -f -- "$TMPO"
1109     header=$1
1110     shift
1111     disable_safe $header
1112     {
1113        echo "#include <$header>"
1114        echo "int main(void) { return 0; }"
1115     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1116 }
1117
1118 check_func(){
1119     log check_func "$@"
1120     func=$1
1121     shift
1122     disable $func
1123     check_ld "cc" "$@" <<EOF && enable $func
1124 extern int $func();
1125 int main(void){ $func(); }
1126 EOF
1127 }
1128
1129 check_complexfunc(){
1130     log check_complexfunc "$@"
1131     func=$1
1132     narg=$2
1133     shift 2
1134     test $narg = 2 && args="f, g" || args="f * I"
1135     disable $func
1136     check_ld "cc" "$@" <<EOF && enable $func
1137 #include <complex.h>
1138 #include <math.h>
1139 float foo(complex float f, complex float g) { return $func($args); }
1140 int main(void){ return (int) foo; }
1141 EOF
1142 }
1143
1144 check_mathfunc(){
1145     log check_mathfunc "$@"
1146     func=$1
1147     narg=$2
1148     shift 2
1149     test $narg = 2 && args="f, g" || args="f"
1150     disable $func
1151     check_ld "cc" "$@" <<EOF && enable $func
1152 #include <math.h>
1153 float foo(float f, float g) { return $func($args); }
1154 int main(void){ return (int) foo; }
1155 EOF
1156 }
1157
1158 check_func_headers(){
1159     log check_func_headers "$@"
1160     headers=$1
1161     funcs=$2
1162     shift 2
1163     {
1164         for hdr in $headers; do
1165             print_include $hdr
1166         done
1167         echo "#include <stdint.h>"
1168         for func in $funcs; do
1169             echo "long check_$func(void) { return (long) $func; }"
1170         done
1171         echo "int main(void) { int ret = 0;"
1172         # LTO could optimize out the test functions without this
1173         for func in $funcs; do
1174             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1175         done
1176         echo "return ret; }"
1177     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1178 }
1179
1180 check_class_headers_cpp(){
1181     log check_class_headers_cpp "$@"
1182     headers=$1
1183     classes=$2
1184     shift 2
1185     {
1186         for hdr in $headers; do
1187             echo "#include <$hdr>"
1188         done
1189         echo "int main(void) { "
1190         i=1
1191         for class in $classes; do
1192             echo "$class obj$i;"
1193             i=$(expr $i + 1)
1194         done
1195         echo "return 0; }"
1196     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1197 }
1198
1199 check_cpp_condition(){
1200     log check_cpp_condition "$@"
1201     header=$1
1202     condition=$2
1203     shift 2
1204     check_cpp "$@" <<EOF
1205 #include <$header>
1206 #if !($condition)
1207 #error "unsatisfied condition: $condition"
1208 #endif
1209 EOF
1210 }
1211
1212 test_cflags_cc(){
1213     log test_cflags_cc "$@"
1214     flags=$1
1215     header=$2
1216     condition=$3
1217     shift 3
1218     set -- $($cflags_filter "$flags")
1219     check_cc "$@" <<EOF
1220 #include <$header>
1221 #if !($condition)
1222 #error "unsatisfied condition: $condition"
1223 #endif
1224 EOF
1225 }
1226
1227 check_lib(){
1228     log check_lib "$@"
1229     name="$1"
1230     headers="$2"
1231     funcs="$3"
1232     shift 3
1233     disable $name
1234     check_func_headers "$headers" "$funcs" "$@" &&
1235         enable $name && add_extralibs "$@"
1236 }
1237
1238 check_lib_cpp(){
1239     log check_lib_cpp "$@"
1240     headers="$1"
1241     classes="$2"
1242     shift 2
1243     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1244 }
1245
1246 check_pkg_config(){
1247     log check_pkg_config "$@"
1248     pkg_version="$1"
1249     pkg="${1%% *}"
1250     headers="$2"
1251     funcs="$3"
1252     shift 3
1253     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1254     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1255     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1256     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1257         set_safe "${pkg}_cflags"    $pkg_cflags &&
1258         set_safe "${pkg}_extralibs" $pkg_libs
1259 }
1260
1261 check_exec(){
1262     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1263 }
1264
1265 check_exec_crash(){
1266     log check_exec_crash "$@"
1267     code=$(cat)
1268
1269     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1270     # are safe but may not be available everywhere.  Thus we use
1271     # raise(SIGTERM) instead.  The check is run in a subshell so we
1272     # can redirect the "Terminated" message from the shell.  SIGBUS
1273     # is not defined by standard C so it is used conditionally.
1274
1275     (check_exec "$@") >> $logfile 2>&1 <<EOF
1276 #include <signal.h>
1277 static void sighandler(int sig){
1278     raise(SIGTERM);
1279 }
1280 int foo(void){
1281     $code
1282 }
1283 int (*func_ptr)(void) = foo;
1284 int main(void){
1285     signal(SIGILL, sighandler);
1286     signal(SIGFPE, sighandler);
1287     signal(SIGSEGV, sighandler);
1288 #ifdef SIGBUS
1289     signal(SIGBUS, sighandler);
1290 #endif
1291     return func_ptr();
1292 }
1293 EOF
1294 }
1295
1296 check_type(){
1297     log check_type "$@"
1298     headers=$1
1299     type=$2
1300     shift 2
1301     disable_safe "$type"
1302     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1303 }
1304
1305 check_struct(){
1306     log check_struct "$@"
1307     headers=$1
1308     struct=$2
1309     member=$3
1310     shift 3
1311     disable_safe "${struct}_${member}"
1312     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1313         enable_safe "${struct}_${member}"
1314 }
1315
1316 check_builtin(){
1317     log check_builtin "$@"
1318     name=$1
1319     headers=$2
1320     builtin=$3
1321     shift 3
1322     disable "$name"
1323     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1324 }
1325
1326 check_compile_assert(){
1327     log check_compile_assert "$@"
1328     name=$1
1329     headers=$2
1330     condition=$3
1331     shift 3
1332     disable "$name"
1333     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1334 }
1335
1336 require(){
1337     log require "$@"
1338     name_version="$1"
1339     name="${1%% *}"
1340     headers="$2"
1341     func="$3"
1342     shift 3
1343     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1344 }
1345
1346 require_cpp(){
1347     name="$1"
1348     headers="$2"
1349     classes="$3"
1350     shift 3
1351     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1352 }
1353
1354 use_pkg_config(){
1355     log use_pkg_config "$@"
1356     pkg="$1"
1357     check_pkg_config "$@" || return 1
1358     add_cflags    $(get_safe "${pkg}_cflags")
1359     add_extralibs $(get_safe "${pkg}_extralibs")
1360 }
1361
1362 require_pkg_config(){
1363     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1364 }
1365
1366 hostcc_e(){
1367     eval printf '%s\\n' $HOSTCC_E
1368 }
1369
1370 hostcc_o(){
1371     eval printf '%s\\n' $HOSTCC_O
1372 }
1373
1374 check_host_cc(){
1375     log check_host_cc "$@"
1376     cat > $TMPC
1377     log_file $TMPC
1378     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1379 }
1380
1381 check_host_cpp(){
1382     log check_host_cpp "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1386 }
1387
1388 check_host_cppflags(){
1389     log check_host_cppflags "$@"
1390     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1391 int x;
1392 EOF
1393 }
1394
1395 check_host_cflags(){
1396     log check_host_cflags "$@"
1397     set -- $($host_cflags_filter "$@")
1398     check_host_cc "$@" <<EOF && append host_cflags "$@"
1399 int x;
1400 EOF
1401 }
1402
1403 check_host_cpp_condition(){
1404     log check_host_cpp_condition "$@"
1405     header=$1
1406     condition=$2
1407     shift 2
1408     check_host_cpp "$@" <<EOF
1409 #include <$header>
1410 #if !($condition)
1411 #error "unsatisfied condition: $condition"
1412 #endif
1413 EOF
1414 }
1415
1416 cp_if_changed(){
1417     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1418     mkdir -p "$(dirname $2)"
1419     cp -f "$1" "$2"
1420 }
1421
1422 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1423 # system-dependent things.
1424
1425 AVCODEC_COMPONENTS="
1426     bsfs
1427     decoders
1428     encoders
1429     hwaccels
1430     parsers
1431 "
1432
1433 AVDEVICE_COMPONENTS="
1434     indevs
1435     outdevs
1436 "
1437 AVFILTER_COMPONENTS="
1438     filters
1439 "
1440 AVFORMAT_COMPONENTS="
1441     demuxers
1442     muxers
1443     protocols
1444 "
1445
1446 AVRESAMPLE_COMPONENTS=""
1447 AVUTIL_COMPONENTS=""
1448
1449 COMPONENT_LIST="
1450     $AVCODEC_COMPONENTS
1451     $AVDEVICE_COMPONENTS
1452     $AVFILTER_COMPONENTS
1453     $AVFORMAT_COMPONENTS
1454     $AVRESAMPLE_COMPONENTS
1455     $AVUTIL_COMPONENTS
1456 "
1457
1458 EXAMPLE_LIST="
1459     avio_dir_cmd_example
1460     avio_reading_example
1461     decode_audio_example
1462     decode_video_example
1463     demuxing_decoding_example
1464     encode_audio_example
1465     encode_video_example
1466     extract_mvs_example
1467     filter_audio_example
1468     filtering_audio_example
1469     filtering_video_example
1470     http_multiclient_example
1471     metadata_example
1472     muxing_example
1473     qsvdec_example
1474     remuxing_example
1475     resampling_audio_example
1476     scaling_video_example
1477     transcode_aac_example
1478     transcoding_example
1479 "
1480 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1481     bzlib
1482     iconv
1483     libxcb
1484     libxcb_shm
1485     libxcb_shape
1486     libxcb_xfixes
1487     lzma
1488     schannel
1489     sdl
1490     sdl2
1491     securetransport
1492     xlib
1493     zlib
1494 "
1495
1496 EXTERNAL_LIBRARY_GPL_LIST="
1497     avisynth
1498     frei0r
1499     libcdio
1500     librubberband
1501     libvidstab
1502     libx264
1503     libx265
1504     libxavs
1505     libxvid
1506 "
1507
1508 EXTERNAL_LIBRARY_NONFREE_LIST="
1509     decklink
1510     libfdk_aac
1511     openssl
1512 "
1513
1514 EXTERNAL_LIBRARY_VERSION3_LIST="
1515     gmp
1516     libopencore_amrnb
1517     libopencore_amrwb
1518     libvo_amrwbenc
1519 "
1520
1521 EXTERNAL_LIBRARY_GPLV3_LIST="
1522     libsmbclient
1523 "
1524
1525 EXTERNAL_LIBRARY_LIST="
1526     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1527     $EXTERNAL_LIBRARY_GPL_LIST
1528     $EXTERNAL_LIBRARY_NONFREE_LIST
1529     $EXTERNAL_LIBRARY_VERSION3_LIST
1530     $EXTERNAL_LIBRARY_GPLV3_LIST
1531     chromaprint
1532     crystalhd
1533     gcrypt
1534     gnutls
1535     jni
1536     ladspa
1537     libass
1538     libbluray
1539     libbs2b
1540     libcaca
1541     libcelt
1542     libdc1394
1543     libflite
1544     libfontconfig
1545     libfreetype
1546     libfribidi
1547     libgme
1548     libgsm
1549     libiec61883
1550     libilbc
1551     libkvazaar
1552     libmodplug
1553     libmp3lame
1554     libopencv
1555     libopenh264
1556     libopenjpeg
1557     libopenmpt
1558     libopus
1559     libpulse
1560     librsvg
1561     librtmp
1562     libschroedinger
1563     libshine
1564     libsmbclient
1565     libsnappy
1566     libsoxr
1567     libspeex
1568     libssh
1569     libtesseract
1570     libtheora
1571     libtwolame
1572     libv4l2
1573     libvorbis
1574     libvpx
1575     libwavpack
1576     libwebp
1577     libzimg
1578     libzmq
1579     libzvbi
1580     mediacodec
1581     netcdf
1582     openal
1583     opencl
1584     opengl
1585     videotoolbox
1586 "
1587 HWACCEL_AUTODETECT_LIBRARY_LIST="
1588     audiotoolbox
1589     cuda
1590     cuvid
1591     d3d11va
1592     dxva2
1593     nvenc
1594     vaapi
1595     vda
1596     vdpau
1597     videotoolbox_hwaccel
1598     xvmc
1599 "
1600
1601 HWACCEL_LIBRARY_NONFREE_LIST="
1602     cuda_sdk
1603     libnpp
1604 "
1605
1606 HWACCEL_LIBRARY_LIST="
1607     $HWACCEL_AUTODETECT_LIBRARY_LIST
1608     $HWACCEL_LIBRARY_NONFREE_LIST
1609     libmfx
1610     mmal
1611     omx
1612 "
1613
1614 DOCUMENT_LIST="
1615     doc
1616     htmlpages
1617     manpages
1618     podpages
1619     txtpages
1620 "
1621
1622 FEATURE_LIST="
1623     ftrapv
1624     gray
1625     hardcoded_tables
1626     omx_rpi
1627     runtime_cpudetect
1628     safe_bitstream_reader
1629     shared
1630     small
1631     static
1632     swscale_alpha
1633 "
1634
1635 LIBRARY_LIST="
1636     avcodec
1637     avdevice
1638     avfilter
1639     avformat
1640     avresample
1641     avutil
1642     postproc
1643     swresample
1644     swscale
1645 "
1646
1647 LICENSE_LIST="
1648     gpl
1649     nonfree
1650     version3
1651 "
1652
1653 PROGRAM_LIST="
1654     ffplay
1655     ffprobe
1656     ffserver
1657     ffmpeg
1658 "
1659
1660 SUBSYSTEM_LIST="
1661     dct
1662     dwt
1663     error_resilience
1664     faan
1665     fast_unaligned
1666     fft
1667     lsp
1668     lzo
1669     mdct
1670     pixelutils
1671     network
1672     rdft
1673 "
1674
1675 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1676 CONFIG_LIST="
1677     $DOCUMENT_LIST
1678     $EXAMPLE_LIST
1679     $EXTERNAL_LIBRARY_LIST
1680     $HWACCEL_LIBRARY_LIST
1681     $FEATURE_LIST
1682     $LICENSE_LIST
1683     $LIBRARY_LIST
1684     $PROGRAM_LIST
1685     $SUBSYSTEM_LIST
1686     fontconfig
1687     memory_poisoning
1688     neon_clobber_test
1689     ossfuzz
1690     pic
1691     thumb
1692     valgrind_backtrace
1693     xmm_clobber_test
1694     $COMPONENT_LIST
1695 "
1696
1697 THREADS_LIST="
1698     pthreads
1699     os2threads
1700     w32threads
1701 "
1702
1703 ATOMICS_LIST="
1704     atomics_gcc
1705     atomics_suncc
1706     atomics_win32
1707 "
1708
1709 AUTODETECT_LIBS="
1710     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1711     $HWACCEL_AUTODETECT_LIBRARY_LIST
1712     $THREADS_LIST
1713 "
1714
1715 ARCH_LIST="
1716     aarch64
1717     alpha
1718     arm
1719     avr32
1720     avr32_ap
1721     avr32_uc
1722     bfin
1723     ia64
1724     m68k
1725     mips
1726     mips64
1727     parisc
1728     ppc
1729     ppc64
1730     s390
1731     sh4
1732     sparc
1733     sparc64
1734     tilegx
1735     tilepro
1736     tomi
1737     x86
1738     x86_32
1739     x86_64
1740 "
1741
1742 ARCH_EXT_LIST_ARM="
1743     armv5te
1744     armv6
1745     armv6t2
1746     armv8
1747     neon
1748     vfp
1749     vfpv3
1750     setend
1751 "
1752
1753 ARCH_EXT_LIST_MIPS="
1754     mipsfpu
1755     mips32r2
1756     mips32r5
1757     mips64r2
1758     mips32r6
1759     mips64r6
1760     mipsdsp
1761     mipsdspr2
1762     msa
1763 "
1764
1765 ARCH_EXT_LIST_LOONGSON="
1766     loongson2
1767     loongson3
1768     mmi
1769 "
1770
1771 ARCH_EXT_LIST_X86_SIMD="
1772     aesni
1773     amd3dnow
1774     amd3dnowext
1775     avx
1776     avx2
1777     fma3
1778     fma4
1779     mmx
1780     mmxext
1781     sse
1782     sse2
1783     sse3
1784     sse4
1785     sse42
1786     ssse3
1787     xop
1788 "
1789
1790 ARCH_EXT_LIST_PPC="
1791     altivec
1792     dcbzl
1793     ldbrx
1794     power8
1795     ppc4xx
1796     vsx
1797 "
1798
1799 ARCH_EXT_LIST_X86="
1800     $ARCH_EXT_LIST_X86_SIMD
1801     cpunop
1802     i686
1803 "
1804
1805 ARCH_EXT_LIST="
1806     $ARCH_EXT_LIST_ARM
1807     $ARCH_EXT_LIST_PPC
1808     $ARCH_EXT_LIST_X86
1809     $ARCH_EXT_LIST_MIPS
1810     $ARCH_EXT_LIST_LOONGSON
1811 "
1812
1813 ARCH_FEATURES="
1814     aligned_stack
1815     fast_64bit
1816     fast_clz
1817     fast_cmov
1818     local_aligned_8
1819     local_aligned_16
1820     local_aligned_32
1821     simd_align_16
1822     simd_align_32
1823 "
1824
1825 BUILTIN_LIST="
1826     atomic_cas_ptr
1827     machine_rw_barrier
1828     MemoryBarrier
1829     mm_empty
1830     rdtsc
1831     sarestart
1832     sem_timedwait
1833     sync_val_compare_and_swap
1834 "
1835 HAVE_LIST_CMDLINE="
1836     inline_asm
1837     symver
1838     yasm
1839 "
1840
1841 HAVE_LIST_PUB="
1842     bigendian
1843     fast_unaligned
1844 "
1845
1846 HEADERS_LIST="
1847     alsa_asoundlib_h
1848     altivec_h
1849     arpa_inet_h
1850     asm_types_h
1851     cdio_paranoia_h
1852     cdio_paranoia_paranoia_h
1853     cuda_h
1854     d3d11_h
1855     dispatch_dispatch_h
1856     dev_bktr_ioctl_bt848_h
1857     dev_bktr_ioctl_meteor_h
1858     dev_ic_bt8xx_h
1859     dev_video_bktr_ioctl_bt848_h
1860     dev_video_meteor_ioctl_meteor_h
1861     direct_h
1862     dirent_h
1863     dlfcn_h
1864     dxva_h
1865     ES2_gl_h
1866     gsm_h
1867     io_h
1868     mach_mach_time_h
1869     machine_ioctl_bt848_h
1870     machine_ioctl_meteor_h
1871     malloc_h
1872     opencv2_core_core_c_h
1873     openjpeg_2_1_openjpeg_h
1874     openjpeg_2_0_openjpeg_h
1875     openjpeg_1_5_openjpeg_h
1876     OpenGL_gl3_h
1877     poll_h
1878     sndio_h
1879     soundcard_h
1880     stdatomic_h
1881     sys_mman_h
1882     sys_param_h
1883     sys_resource_h
1884     sys_select_h
1885     sys_soundcard_h
1886     sys_time_h
1887     sys_un_h
1888     sys_videoio_h
1889     termios_h
1890     udplite_h
1891     unistd_h
1892     valgrind_valgrind_h
1893     windows_h
1894     winsock2_h
1895 "
1896
1897 INTRINSICS_LIST="
1898     intrinsics_neon
1899 "
1900
1901 COMPLEX_FUNCS="
1902     cabs
1903     cexp
1904 "
1905
1906 MATH_FUNCS="
1907     atanf
1908     atan2f
1909     cbrt
1910     cbrtf
1911     copysign
1912     cosf
1913     erf
1914     exp2
1915     exp2f
1916     expf
1917     hypot
1918     isfinite
1919     isinf
1920     isnan
1921     ldexpf
1922     llrint
1923     llrintf
1924     log2
1925     log2f
1926     log10f
1927     lrint
1928     lrintf
1929     powf
1930     rint
1931     round
1932     roundf
1933     sinf
1934     trunc
1935     truncf
1936 "
1937
1938 SYSTEM_FUNCS="
1939     access
1940     aligned_malloc
1941     arc4random
1942     clock_gettime
1943     closesocket
1944     CommandLineToArgvW
1945     CoTaskMemFree
1946     CryptGenRandom
1947     dlopen
1948     fcntl
1949     flt_lim
1950     fork
1951     getaddrinfo
1952     gethrtime
1953     getopt
1954     GetProcessAffinityMask
1955     GetProcessMemoryInfo
1956     GetProcessTimes
1957     getrusage
1958     GetSystemTimeAsFileTime
1959     gettimeofday
1960     glob
1961     glXGetProcAddress
1962     gmtime_r
1963     inet_aton
1964     isatty
1965     jack_port_get_latency_range
1966     kbhit
1967     LoadLibrary
1968     localtime_r
1969     lstat
1970     lzo1x_999_compress
1971     mach_absolute_time
1972     MapViewOfFile
1973     memalign
1974     mkstemp
1975     mmap
1976     mprotect
1977     nanosleep
1978     PeekNamedPipe
1979     posix_memalign
1980     pthread_cancel
1981     sched_getaffinity
1982     SetConsoleTextAttribute
1983     SetConsoleCtrlHandler
1984     setmode
1985     setrlimit
1986     Sleep
1987     strerror_r
1988     sysconf
1989     sysctl
1990     usleep
1991     UTGetOSTypeFromString
1992     VirtualAlloc
1993     wglGetProcAddress
1994 "
1995
1996 TOOLCHAIN_FEATURES="
1997     as_dn_directive
1998     as_fpu_directive
1999     as_func
2000     as_object_arch
2001     asm_mod_q
2002     attribute_may_alias
2003     attribute_packed
2004     blocks_extension
2005     ebp_available
2006     ebx_available
2007     gnu_as
2008     gnu_windres
2009     ibm_asm
2010     inline_asm_direct_symbol_refs
2011     inline_asm_labels
2012     inline_asm_nonlocal_labels
2013     pragma_deprecated
2014     rsync_contimeout
2015     symver_asm_label
2016     symver_gnu_asm
2017     vfp_args
2018     xform_asm
2019     xmm_clobbers
2020 "
2021
2022 TYPES_LIST="
2023     CONDITION_VARIABLE_Ptr
2024     socklen_t
2025     struct_addrinfo
2026     struct_group_source_req
2027     struct_ip_mreq_source
2028     struct_ipv6_mreq
2029     struct_msghdr_msg_flags
2030     struct_pollfd
2031     struct_rusage_ru_maxrss
2032     struct_sctp_event_subscribe
2033     struct_sockaddr_in6
2034     struct_sockaddr_sa_len
2035     struct_sockaddr_storage
2036     struct_stat_st_mtim_tv_nsec
2037     struct_v4l2_frmivalenum_discrete
2038 "
2039
2040 HAVE_LIST="
2041     $ARCH_EXT_LIST
2042     $(add_suffix _external $ARCH_EXT_LIST)
2043     $(add_suffix _inline   $ARCH_EXT_LIST)
2044     $ARCH_FEATURES
2045     $ATOMICS_LIST
2046     $BUILTIN_LIST
2047     $COMPLEX_FUNCS
2048     $HAVE_LIST_CMDLINE
2049     $HAVE_LIST_PUB
2050     $HEADERS_LIST
2051     $INTRINSICS_LIST
2052     $MATH_FUNCS
2053     $SYSTEM_FUNCS
2054     $THREADS_LIST
2055     $TOOLCHAIN_FEATURES
2056     $TYPES_LIST
2057     alsa
2058     atomics_native
2059     dos_paths
2060     dxva2_lib
2061     dxva2api_cobj
2062     jack
2063     libc_msvcrt
2064     makeinfo
2065     makeinfo_html
2066     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2067     perl
2068     pod2man
2069     sdl2
2070     section_data_rel_ro
2071     sndio
2072     texi2html
2073     threads
2074     vaapi_drm
2075     vaapi_x11
2076     vdpau_x11
2077     winrt
2078 "
2079
2080 # options emitted with CONFIG_ prefix but not available on the command line
2081 CONFIG_EXTRA="
2082     aandcttables
2083     ac3dsp
2084     audio_frame_queue
2085     audiodsp
2086     blockdsp
2087     bswapdsp
2088     cabac
2089     dirac_parse
2090     dvprofile
2091     exif
2092     faandct
2093     faanidct
2094     fdctdsp
2095     flacdsp
2096     fmtconvert
2097     frame_thread_encoder
2098     g722dsp
2099     golomb
2100     gplv3
2101     h263dsp
2102     h264chroma
2103     h264dsp
2104     h264parse
2105     h264pred
2106     h264qpel
2107     hevcparse
2108     hpeldsp
2109     huffman
2110     huffyuvdsp
2111     huffyuvencdsp
2112     idctdsp
2113     iirfilter
2114     mdct15
2115     intrax8
2116     iso_media
2117     ividsp
2118     jpegtables
2119     lgplv3
2120     libx262
2121     llauddsp
2122     llviddsp
2123     llvidencdsp
2124     lpc
2125     lzf
2126     me_cmp
2127     mpeg_er
2128     mpegaudio
2129     mpegaudiodsp
2130     mpegaudioheader
2131     mpegvideo
2132     mpegvideoenc
2133     mss34dsp
2134     pixblockdsp
2135     qpeldsp
2136     qsv
2137     qsvdec
2138     qsvenc
2139     rangecoder
2140     riffdec
2141     riffenc
2142     rtpdec
2143     rtpenc_chain
2144     rv34dsp
2145     sinewin
2146     snappy
2147     srtp
2148     startcode
2149     texturedsp
2150     texturedspenc
2151     tpeldsp
2152     vaapi_encode
2153     vc1dsp
2154     videodsp
2155     vp3dsp
2156     vp56dsp
2157     vp8dsp
2158     vt_bt2020
2159     wma_freqs
2160     wmv2dsp
2161 "
2162
2163 CMDLINE_SELECT="
2164     $ARCH_EXT_LIST
2165     $CONFIG_LIST
2166     $HAVE_LIST_CMDLINE
2167     $THREADS_LIST
2168     asm
2169     cross_compile
2170     debug
2171     extra_warnings
2172     logging
2173     lto
2174     optimizations
2175     rpath
2176     stripping
2177 "
2178
2179 PATHS_LIST="
2180     bindir
2181     datadir
2182     docdir
2183     incdir
2184     libdir
2185     mandir
2186     pkgconfigdir
2187     prefix
2188     shlibdir
2189     install_name_dir
2190 "
2191
2192 CMDLINE_SET="
2193     $PATHS_LIST
2194     ar
2195     arch
2196     as
2197     assert_level
2198     build_suffix
2199     cc
2200     objcc
2201     cpu
2202     cross_prefix
2203     custom_allocator
2204     cxx
2205     dep_cc
2206     doxygen
2207     env
2208     extra_version
2209     gas
2210     host_cc
2211     host_cflags
2212     host_extralibs
2213     host_ld
2214     host_ldflags
2215     host_os
2216     ignore_tests
2217     install
2218     ld
2219     ln_s
2220     logfile
2221     malloc_prefix
2222     nm
2223     optflags
2224     nvccflags
2225     pkg_config
2226     pkg_config_flags
2227     progs_suffix
2228     random_seed
2229     ranlib
2230     samples
2231     strip
2232     sws_max_filter_size
2233     sysinclude
2234     sysroot
2235     target_exec
2236     target_os
2237     target_path
2238     target_samples
2239     tempprefix
2240     toolchain
2241     valgrind
2242     yasmexe
2243 "
2244
2245 CMDLINE_APPEND="
2246     extra_cflags
2247     extra_cxxflags
2248     extra_objcflags
2249     host_cppflags
2250 "
2251
2252 # code dependency declarations
2253
2254 # architecture extensions
2255
2256 armv5te_deps="arm"
2257 armv6_deps="arm"
2258 armv6t2_deps="arm"
2259 armv8_deps="aarch64"
2260 neon_deps_any="aarch64 arm"
2261 intrinsics_neon_deps="neon"
2262 vfp_deps_any="aarch64 arm"
2263 vfpv3_deps="vfp"
2264 setend_deps="arm"
2265
2266 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2267
2268 loongson2_deps="mips"
2269 loongson3_deps="mips"
2270 mipsfpu_deps="mips"
2271 mipsdsp_deps="mips"
2272 mipsdspr2_deps="mips"
2273 mips32r2_deps="mips"
2274 mips32r5_deps="mips"
2275 mips32r6_deps="mips"
2276 mips64r2_deps="mips"
2277 mips64r6_deps="mips"
2278 msa_deps="mipsfpu"
2279 mmi_deps="mips"
2280
2281 altivec_deps="ppc"
2282 dcbzl_deps="ppc"
2283 ldbrx_deps="ppc"
2284 ppc4xx_deps="ppc"
2285 vsx_deps="altivec"
2286 power8_deps="vsx"
2287
2288 cpunop_deps="i686"
2289 x86_64_select="i686"
2290 x86_64_suggest="fast_cmov"
2291
2292 amd3dnow_deps="mmx"
2293 amd3dnowext_deps="amd3dnow"
2294 i686_deps="x86"
2295 mmx_deps="x86"
2296 mmxext_deps="mmx"
2297 sse_deps="mmxext"
2298 sse2_deps="sse"
2299 sse3_deps="sse2"
2300 ssse3_deps="sse3"
2301 sse4_deps="ssse3"
2302 sse42_deps="sse4"
2303 aesni_deps="sse42"
2304 avx_deps="sse42"
2305 xop_deps="avx"
2306 fma3_deps="avx"
2307 fma4_deps="avx"
2308 avx2_deps="avx"
2309
2310 mmx_external_deps="yasm"
2311 mmx_inline_deps="inline_asm"
2312 mmx_suggest="mmx_external mmx_inline"
2313
2314 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2315     eval dep=\$${ext}_deps
2316     eval ${ext}_external_deps='"${dep}_external"'
2317     eval ${ext}_inline_deps='"${dep}_inline"'
2318     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2319 done
2320
2321 aligned_stack_if_any="aarch64 ppc x86"
2322 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2323 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2324 fast_unaligned_if_any="aarch64 ppc x86"
2325 simd_align_16_if_any="altivec neon sse"
2326 simd_align_32_if_any="avx"
2327
2328 # system capabilities
2329 symver_if_any="symver_asm_label symver_gnu_asm"
2330 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2331
2332 # threading support
2333 atomics_gcc_if="sync_val_compare_and_swap"
2334 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2335 atomics_win32_if="MemoryBarrier"
2336 atomics_native_if_any="$ATOMICS_LIST"
2337 w32threads_deps="atomics_native"
2338 threads_if_any="$THREADS_LIST"
2339
2340 # subsystems
2341 dct_select="rdft"
2342 dirac_parse_select="golomb"
2343 error_resilience_select="me_cmp"
2344 faandct_deps="faan fdctdsp"
2345 faanidct_deps="faan idctdsp"
2346 h264dsp_select="startcode"
2347 hevcparse_select="golomb"
2348 frame_thread_encoder_deps="encoders threads"
2349 intrax8_select="blockdsp idctdsp"
2350 mdct_select="fft"
2351 mdct15_select="fft"
2352 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2353 mpeg_er_select="error_resilience"
2354 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2355 mpegaudiodsp_select="dct"
2356 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2357 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2358 vc1dsp_select="h264chroma qpeldsp startcode"
2359 rdft_select="fft"
2360
2361 # decoders / encoders
2362 aac_decoder_select="mdct15 mdct sinewin"
2363 aac_fixed_decoder_select="mdct sinewin"
2364 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2365 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2366 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2367 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2368 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2369 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2370 adpcm_g722_decoder_select="g722dsp"
2371 adpcm_g722_encoder_select="g722dsp"
2372 aic_decoder_select="golomb idctdsp"
2373 alac_encoder_select="lpc"
2374 als_decoder_select="bswapdsp"
2375 amrnb_decoder_select="lsp"
2376 amrwb_decoder_select="lsp"
2377 amv_decoder_select="sp5x_decoder exif"
2378 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2379 ape_decoder_select="bswapdsp llauddsp"
2380 apng_decoder_select="zlib"
2381 apng_encoder_select="llvidencdsp zlib"
2382 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2383 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2384 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2385 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2386 atrac1_decoder_select="mdct sinewin"
2387 atrac3_decoder_select="mdct"
2388 atrac3p_decoder_select="mdct sinewin"
2389 avrn_decoder_select="exif jpegtables"
2390 bink_decoder_select="blockdsp hpeldsp"
2391 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2392 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2393 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2394 cllc_decoder_select="bswapdsp"
2395 comfortnoise_encoder_select="lpc"
2396 cook_decoder_select="audiodsp mdct sinewin"
2397 cscd_decoder_select="lzo"
2398 cscd_decoder_suggest="zlib"
2399 dca_decoder_select="mdct"
2400 dds_decoder_select="texturedsp"
2401 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2402 dnxhd_decoder_select="blockdsp idctdsp"
2403 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2404 dvvideo_decoder_select="dvprofile idctdsp"
2405 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2406 dxa_decoder_select="zlib"
2407 dxv_decoder_select="lzf texturedsp"
2408 eac3_decoder_select="ac3_decoder"
2409 eac3_encoder_select="ac3_encoder"
2410 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2411 eatgq_decoder_select="aandcttables"
2412 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2413 exr_decoder_select="zlib"
2414 ffv1_decoder_select="rangecoder"
2415 ffv1_encoder_select="rangecoder"
2416 ffvhuff_decoder_select="huffyuv_decoder"
2417 ffvhuff_encoder_select="huffyuv_encoder"
2418 fic_decoder_select="golomb"
2419 flac_decoder_select="flacdsp"
2420 flac_encoder_select="bswapdsp flacdsp lpc"
2421 flashsv2_decoder_select="zlib"
2422 flashsv2_encoder_select="zlib"
2423 flashsv_decoder_select="zlib"
2424 flashsv_encoder_select="zlib"
2425 flv_decoder_select="h263_decoder"
2426 flv_encoder_select="h263_encoder"
2427 fourxm_decoder_select="blockdsp bswapdsp"
2428 fraps_decoder_select="bswapdsp huffman"
2429 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2430 g729_decoder_select="audiodsp"
2431 h261_decoder_select="mpegvideo"
2432 h261_encoder_select="aandcttables mpegvideoenc"
2433 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2434 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2435 h263i_decoder_select="h263_decoder"
2436 h263p_decoder_select="h263_decoder"
2437 h263p_encoder_select="h263_encoder"
2438 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2439 h264_decoder_suggest="error_resilience"
2440 hap_decoder_select="snappy texturedsp"
2441 hap_encoder_deps="libsnappy"
2442 hap_encoder_select="texturedspenc"
2443 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2444 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2445 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2446 iac_decoder_select="imc_decoder"
2447 imc_decoder_select="bswapdsp fft mdct sinewin"
2448 indeo3_decoder_select="hpeldsp"
2449 indeo4_decoder_select="ividsp"
2450 indeo5_decoder_select="ividsp"
2451 interplay_video_decoder_select="hpeldsp"
2452 jpegls_decoder_select="mjpeg_decoder"
2453 jv_decoder_select="blockdsp"
2454 lagarith_decoder_select="llviddsp"
2455 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2456 magicyuv_decoder_select="llviddsp"
2457 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2458 metasound_decoder_select="lsp mdct sinewin"
2459 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2460 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2461 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2462 mjpegb_decoder_select="mjpeg_decoder"
2463 mlp_decoder_select="mlp_parser"
2464 mlp_encoder_select="lpc"
2465 motionpixels_decoder_select="bswapdsp"
2466 mp1_decoder_select="mpegaudio"
2467 mp1float_decoder_select="mpegaudio"
2468 mp2_decoder_select="mpegaudio"
2469 mp2float_decoder_select="mpegaudio"
2470 mp3_decoder_select="mpegaudio"
2471 mp3adu_decoder_select="mpegaudio"
2472 mp3adufloat_decoder_select="mpegaudio"
2473 mp3float_decoder_select="mpegaudio"
2474 mp3on4_decoder_select="mpegaudio"
2475 mp3on4float_decoder_select="mpegaudio"
2476 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2477 mpc8_decoder_select="mpegaudiodsp"
2478 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2479 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2480 mpegvideo_decoder_select="mpegvideo"
2481 mpeg1video_decoder_select="mpegvideo"
2482 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2483 mpeg2video_decoder_select="mpegvideo"
2484 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2485 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2486 mpeg4_encoder_select="h263_encoder"
2487 msa1_decoder_select="mss34dsp"
2488 mscc_decoder_select="zlib"
2489 msmpeg4v1_decoder_select="h263_decoder"
2490 msmpeg4v2_decoder_select="h263_decoder"
2491 msmpeg4v2_encoder_select="h263_encoder"
2492 msmpeg4v3_decoder_select="h263_decoder"
2493 msmpeg4v3_encoder_select="h263_encoder"
2494 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2495 mts2_decoder_select="mss34dsp"
2496 mxpeg_decoder_select="mjpeg_decoder"
2497 nellymoser_decoder_select="mdct sinewin"
2498 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2499 nuv_decoder_select="idctdsp lzo"
2500 on2avc_decoder_select="mdct"
2501 opus_decoder_deps="swresample"
2502 opus_decoder_select="mdct15"
2503 opus_encoder_select="audio_frame_queue mdct15"
2504 png_decoder_select="zlib"
2505 png_encoder_select="llvidencdsp zlib"
2506 prores_decoder_select="blockdsp idctdsp"
2507 prores_encoder_select="fdctdsp"
2508 qcelp_decoder_select="lsp"
2509 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2510 ra_144_decoder_select="audiodsp"
2511 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2512 ralf_decoder_select="golomb"
2513 rawvideo_decoder_select="bswapdsp"
2514 rscc_decoder_select="zlib"
2515 rtjpeg_decoder_select="me_cmp"
2516 rv10_decoder_select="h263_decoder"
2517 rv10_encoder_select="h263_encoder"
2518 rv20_decoder_select="h263_decoder"
2519 rv20_encoder_select="h263_encoder"
2520 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2522 screenpresso_decoder_select="zlib"
2523 shorten_decoder_select="bswapdsp"
2524 sipr_decoder_select="lsp"
2525 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2526 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2527 sonic_decoder_select="golomb rangecoder"
2528 sonic_encoder_select="golomb rangecoder"
2529 sonic_ls_encoder_select="golomb rangecoder"
2530 sp5x_decoder_select="mjpeg_decoder"
2531 srgc_decoder_select="zlib"
2532 svq1_decoder_select="hpeldsp"
2533 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2534 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2535 svq3_decoder_suggest="zlib"
2536 tak_decoder_select="audiodsp"
2537 tdsc_decoder_select="zlib mjpeg_decoder"
2538 theora_decoder_select="vp3_decoder"
2539 thp_decoder_select="mjpeg_decoder"
2540 tiff_decoder_suggest="zlib lzma"
2541 tiff_encoder_suggest="zlib"
2542 truehd_decoder_select="mlp_parser"
2543 truehd_encoder_select="lpc"
2544 truemotion2_decoder_select="bswapdsp"
2545 truespeech_decoder_select="bswapdsp"
2546 tscc_decoder_select="zlib"
2547 twinvq_decoder_select="mdct lsp sinewin"
2548 txd_decoder_select="texturedsp"
2549 utvideo_decoder_select="bswapdsp llviddsp"
2550 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2551 vble_decoder_select="llviddsp"
2552 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2553 vc1_qsv_decoder_deps="libmfx"
2554 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2555 vc1image_decoder_select="vc1_decoder"
2556 vorbis_decoder_select="mdct"
2557 vorbis_encoder_select="mdct"
2558 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2559 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2560 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2561 vp6a_decoder_select="vp6_decoder"
2562 vp6f_decoder_select="vp6_decoder"
2563 vp7_decoder_select="h264pred videodsp vp8dsp"
2564 vp8_decoder_select="h264pred videodsp vp8dsp"
2565 vp9_decoder_select="videodsp vp9_parser"
2566 webp_decoder_select="vp8_decoder exif"
2567 wmalossless_decoder_select="llauddsp"
2568 wmapro_decoder_select="mdct sinewin wma_freqs"
2569 wmav1_decoder_select="mdct sinewin wma_freqs"
2570 wmav1_encoder_select="mdct sinewin wma_freqs"
2571 wmav2_decoder_select="mdct sinewin wma_freqs"
2572 wmav2_encoder_select="mdct sinewin wma_freqs"
2573 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2574 wmv1_decoder_select="h263_decoder"
2575 wmv1_encoder_select="h263_encoder"
2576 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2577 wmv2_encoder_select="h263_encoder wmv2dsp"
2578 wmv3_decoder_select="vc1_decoder"
2579 wmv3image_decoder_select="wmv3_decoder"
2580 xma1_decoder_select="wmapro_decoder"
2581 xma2_decoder_select="wmapro_decoder"
2582 zerocodec_decoder_select="zlib"
2583 zlib_decoder_select="zlib"
2584 zlib_encoder_select="zlib"
2585 zmbv_decoder_select="zlib"
2586 zmbv_encoder_select="zlib"
2587
2588 # platform codecs
2589 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2590 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2591
2592 # hardware accelerators
2593 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2594 cuda_deps_any="dlopen LoadLibrary"
2595 cuvid_deps="cuda"
2596 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2597 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2598 dxva2_extralibs="-luser32"
2599 dxva2_lib_deps="dxva2"
2600 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2601 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2602 vda_deps="vda_framework pthreads"
2603 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2604 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2605 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2606 xvmc_deps="X11_extensions_XvMClib_h"
2607
2608 h263_vaapi_hwaccel_deps="vaapi"
2609 h263_vaapi_hwaccel_select="h263_decoder"
2610 h263_videotoolbox_hwaccel_deps="videotoolbox"
2611 h263_videotoolbox_hwaccel_select="h263_decoder"
2612 h264_cuvid_hwaccel_deps="cuda cuvid"
2613 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2614 h264_d3d11va_hwaccel_deps="d3d11va"
2615 h264_d3d11va_hwaccel_select="h264_decoder"
2616 h264_dxva2_hwaccel_deps="dxva2"
2617 h264_dxva2_hwaccel_select="h264_decoder"
2618 h264_mediacodec_hwaccel_deps="mediacodec"
2619 h264_mmal_hwaccel_deps="mmal"
2620 h264_qsv_hwaccel_deps="libmfx"
2621 h264_vaapi_hwaccel_deps="vaapi"
2622 h264_vaapi_hwaccel_select="h264_decoder"
2623 h264_vda_hwaccel_deps="vda"
2624 h264_vda_hwaccel_select="h264_decoder"
2625 h264_vda_old_hwaccel_deps="vda"
2626 h264_vda_old_hwaccel_select="h264_decoder"
2627 h264_vdpau_hwaccel_deps="vdpau"
2628 h264_vdpau_hwaccel_select="h264_decoder"
2629 h264_videotoolbox_hwaccel_deps="videotoolbox"
2630 h264_videotoolbox_hwaccel_select="h264_decoder"
2631 hevc_cuvid_hwaccel_deps="cuda cuvid"
2632 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2633 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2634 hevc_d3d11va_hwaccel_select="hevc_decoder"
2635 hevc_mediacodec_hwaccel_deps="mediacodec"
2636 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2637 hevc_dxva2_hwaccel_select="hevc_decoder"
2638 hevc_qsv_hwaccel_deps="libmfx"
2639 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2640 hevc_vaapi_hwaccel_select="hevc_decoder"
2641 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2642 hevc_vdpau_hwaccel_select="hevc_decoder"
2643 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2644 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2645 mpeg_xvmc_hwaccel_deps="xvmc"
2646 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2647 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2648 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2649 mpeg1_vdpau_hwaccel_deps="vdpau"
2650 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2651 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2652 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2653 mpeg1_xvmc_hwaccel_deps="xvmc"
2654 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2655 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2656 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2657 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2658 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2659 mpeg2_dxva2_hwaccel_deps="dxva2"
2660 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2661 mpeg2_mmal_hwaccel_deps="mmal"
2662 mpeg2_qsv_hwaccel_deps="libmfx"
2663 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2664 mpeg2_vaapi_hwaccel_deps="vaapi"
2665 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2666 mpeg2_vdpau_hwaccel_deps="vdpau"
2667 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2668 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2669 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2670 mpeg2_xvmc_hwaccel_deps="xvmc"
2671 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2672 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2673 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2674 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2675 mpeg4_mmal_hwaccel_deps="mmal"
2676 mpeg4_vaapi_hwaccel_deps="vaapi"
2677 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2678 mpeg4_vdpau_hwaccel_deps="vdpau"
2679 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2680 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2681 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2682 vc1_cuvid_hwaccel_deps="cuda cuvid"
2683 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2684 vc1_d3d11va_hwaccel_deps="d3d11va"
2685 vc1_d3d11va_hwaccel_select="vc1_decoder"
2686 vc1_dxva2_hwaccel_deps="dxva2"
2687 vc1_dxva2_hwaccel_select="vc1_decoder"
2688 vc1_mmal_hwaccel_deps="mmal"
2689 vc1_qsv_hwaccel_deps="libmfx"
2690 vc1_qsv_hwaccel_select="qsvdec_vc1"
2691 vc1_vaapi_hwaccel_deps="vaapi"
2692 vc1_vaapi_hwaccel_select="vc1_decoder"
2693 vc1_vdpau_hwaccel_deps="vdpau"
2694 vc1_vdpau_hwaccel_select="vc1_decoder"
2695 vp8_cuvid_hwaccel_deps="cuda cuvid"
2696 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2697 vp9_cuvid_hwaccel_deps="cuda cuvid"
2698 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2699 vp8_mediacodec_hwaccel_deps="mediacodec"
2700 vp8_qsv_hwaccel_deps="libmfx"
2701 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2702 vp9_d3d11va_hwaccel_select="vp9_decoder"
2703 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2704 vp9_dxva2_hwaccel_select="vp9_decoder"
2705 vp9_mediacodec_hwaccel_deps="mediacodec"
2706 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2707 vp9_vaapi_hwaccel_select="vp9_decoder"
2708 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2709 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2710 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2711 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2712
2713 # hardware-accelerated codecs
2714 omx_deps="dlopen pthreads"
2715 omx_extralibs='$ldl'
2716 omx_rpi_select="omx"
2717 qsvdec_select="qsv"
2718 qsvenc_select="qsv"
2719 vaapi_encode_deps="vaapi"
2720
2721 hwupload_cuda_filter_deps="cuda"
2722 scale_npp_filter_deps="cuda_sdk libnpp"
2723 scale_cuda_filter_deps="cuda_sdk"
2724
2725 nvenc_deps="cuda"
2726 nvenc_deps_any="dlopen LoadLibrary"
2727 nvenc_encoder_deps="nvenc"
2728
2729 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2730 h264_cuvid_decoder_deps="cuda cuvid"
2731 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2732 h264_mediacodec_decoder_deps="mediacodec"
2733 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2734 h264_mmal_decoder_deps="mmal"
2735 h264_nvenc_encoder_deps="nvenc"
2736 h264_omx_encoder_deps="omx"
2737 h264_qsv_decoder_deps="libmfx"
2738 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2739 h264_qsv_encoder_deps="libmfx"
2740 h264_qsv_encoder_select="qsvenc"
2741 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2742 h264_vaapi_encoder_select="vaapi_encode golomb"
2743 h264_vda_decoder_deps="vda"
2744 h264_vda_decoder_select="h264_decoder"
2745 h264_vdpau_decoder_deps="vdpau"
2746 h264_vdpau_decoder_select="h264_decoder"
2747 hevc_cuvid_decoder_deps="cuda cuvid"
2748 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2749 hevc_mediacodec_decoder_deps="mediacodec"
2750 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2751 hevc_nvenc_encoder_deps="nvenc"
2752 hevc_qsv_decoder_deps="libmfx"
2753 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2754 hevc_qsv_encoder_deps="libmfx"
2755 hevc_qsv_encoder_select="hevcparse qsvenc"
2756 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2757 hevc_vaapi_encoder_select="vaapi_encode golomb"
2758 mjpeg_cuvid_decoder_deps="cuda cuvid"
2759 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2760 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2761 mpeg1_cuvid_decoder_deps="cuda cuvid"
2762 mpeg1_vdpau_decoder_deps="vdpau"
2763 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2764 mpeg2_crystalhd_decoder_select="crystalhd"
2765 mpeg2_cuvid_decoder_deps="cuda cuvid"
2766 mpeg2_mmal_decoder_deps="mmal"
2767 mpeg2_qsv_decoder_deps="libmfx"
2768 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2769 mpeg2_qsv_encoder_deps="libmfx"
2770 mpeg2_qsv_encoder_select="qsvenc"
2771 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2772 mpeg2_vaapi_encoder_select="vaapi_encode"
2773 mpeg4_crystalhd_decoder_select="crystalhd"
2774 mpeg4_cuvid_decoder_deps="cuda cuvid"
2775 mpeg4_mediacodec_decoder_deps="mediacodec"
2776 mpeg4_mmal_decoder_deps="mmal"
2777 mpeg4_omx_encoder_deps="omx"
2778 mpeg4_vdpau_decoder_deps="vdpau"
2779 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2780 mpeg_vdpau_decoder_deps="vdpau"
2781 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2782 msmpeg4_crystalhd_decoder_select="crystalhd"
2783 nvenc_h264_encoder_select="h264_nvenc_encoder"
2784 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2785 vc1_crystalhd_decoder_select="crystalhd"
2786 vc1_cuvid_decoder_deps="cuda cuvid"
2787 vc1_mmal_decoder_deps="mmal"
2788 vc1_vdpau_decoder_deps="vdpau"
2789 vc1_vdpau_decoder_select="vc1_decoder"
2790 vp8_cuvid_decoder_deps="cuda cuvid"
2791 vp8_mediacodec_decoder_deps="mediacodec"
2792 vp8_qsv_decoder_deps="libmfx"
2793 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2794 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2795 vp8_vaapi_encoder_select="vaapi_encode"
2796 vp9_cuvid_decoder_deps="cuda cuvid"
2797 vp9_mediacodec_decoder_deps="mediacodec"
2798 wmv3_crystalhd_decoder_select="crystalhd"
2799 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2800
2801 # parsers
2802 h264_parser_select="golomb h264dsp h264parse"
2803 hevc_parser_select="hevcparse"
2804 mpegaudio_parser_select="mpegaudioheader"
2805 mpegvideo_parser_select="mpegvideo"
2806 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2807 vc1_parser_select="vc1dsp"
2808
2809 # bitstream_filters
2810 mjpeg2jpeg_bsf_select="jpegtables"
2811
2812 # external libraries
2813 aac_at_decoder_deps="audiotoolbox"
2814 ac3_at_decoder_deps="audiotoolbox"
2815 ac3_at_decoder_select="ac3_parser"
2816 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2817 alac_at_decoder_deps="audiotoolbox"
2818 amr_nb_at_decoder_deps="audiotoolbox"
2819 avisynth_deps_any="dlopen LoadLibrary"
2820 avisynth_demuxer_deps="avisynth"
2821 avisynth_demuxer_select="riffdec"
2822 eac3_at_decoder_deps="audiotoolbox"
2823 eac3_at_decoder_select="ac3_parser"
2824 gsm_ms_at_decoder_deps="audiotoolbox"
2825 ilbc_at_decoder_deps="audiotoolbox"
2826 mp1_at_decoder_deps="audiotoolbox"
2827 mp2_at_decoder_deps="audiotoolbox"
2828 mp3_at_decoder_deps="audiotoolbox"
2829 mp1_at_decoder_select="mpegaudioheader"
2830 mp2_at_decoder_select="mpegaudioheader"
2831 mp3_at_decoder_select="mpegaudioheader"
2832 pcm_alaw_at_decoder_deps="audiotoolbox"
2833 pcm_mulaw_at_decoder_deps="audiotoolbox"
2834 qdmc_at_decoder_deps="audiotoolbox"
2835 qdm2_at_decoder_deps="audiotoolbox"
2836 aac_at_encoder_deps="audiotoolbox"
2837 aac_at_encoder_select="audio_frame_queue"
2838 alac_at_encoder_deps="audiotoolbox"
2839 alac_at_encoder_select="audio_frame_queue"
2840 ilbc_at_encoder_deps="audiotoolbox"
2841 ilbc_at_encoder_select="audio_frame_queue"
2842 pcm_alaw_at_encoder_deps="audiotoolbox"
2843 pcm_alaw_at_encoder_select="audio_frame_queue"
2844 pcm_mulaw_at_encoder_deps="audiotoolbox"
2845 pcm_mulaw_at_encoder_select="audio_frame_queue"
2846 chromaprint_muxer_deps="chromaprint"
2847 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2848 libcelt_decoder_deps="libcelt"
2849 libfdk_aac_decoder_deps="libfdk_aac"
2850 libfdk_aac_encoder_deps="libfdk_aac"
2851 libfdk_aac_encoder_select="audio_frame_queue"
2852 libgme_demuxer_deps="libgme"
2853 libgsm_decoder_deps="libgsm"
2854 libgsm_encoder_deps="libgsm"
2855 libgsm_ms_decoder_deps="libgsm"
2856 libgsm_ms_encoder_deps="libgsm"
2857 libilbc_decoder_deps="libilbc"
2858 libilbc_encoder_deps="libilbc"
2859 libkvazaar_encoder_deps="libkvazaar"
2860 libmodplug_demuxer_deps="libmodplug"
2861 libmp3lame_encoder_deps="libmp3lame"
2862 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2863 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2864 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2865 libopencore_amrnb_encoder_select="audio_frame_queue"
2866 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2867 libopenh264_decoder_deps="libopenh264"
2868 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2869 libopenh264_encoder_deps="libopenh264"
2870 libopenjpeg_decoder_deps="libopenjpeg"
2871 libopenjpeg_encoder_deps="libopenjpeg"
2872 libopenmpt_demuxer_deps="libopenmpt"
2873 libopus_decoder_deps="libopus"
2874 libopus_encoder_deps="libopus"
2875 libopus_encoder_select="audio_frame_queue"
2876 librsvg_decoder_deps="librsvg"
2877 libschroedinger_decoder_deps="libschroedinger"
2878 libschroedinger_encoder_deps="libschroedinger"
2879 libshine_encoder_deps="libshine"
2880 libshine_encoder_select="audio_frame_queue"
2881 libspeex_decoder_deps="libspeex"
2882 libspeex_encoder_deps="libspeex"
2883 libspeex_encoder_select="audio_frame_queue"
2884 libtheora_encoder_deps="libtheora"
2885 libtwolame_encoder_deps="libtwolame"
2886 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2887 libvorbis_decoder_deps="libvorbis"
2888 libvorbis_encoder_deps="libvorbis"
2889 libvorbis_encoder_select="audio_frame_queue"
2890 libvpx_vp8_decoder_deps="libvpx"
2891 libvpx_vp8_encoder_deps="libvpx"
2892 libvpx_vp9_decoder_deps="libvpx"
2893 libvpx_vp9_encoder_deps="libvpx"
2894 libwavpack_encoder_deps="libwavpack"
2895 libwavpack_encoder_select="audio_frame_queue"
2896 libwebp_encoder_deps="libwebp"
2897 libwebp_anim_encoder_deps="libwebp"
2898 libx262_encoder_deps="libx262"
2899 libx264_encoder_deps="libx264"
2900 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2901 libx264rgb_encoder_select="libx264_encoder"
2902 libx265_encoder_deps="libx265"
2903 libxavs_encoder_deps="libxavs"
2904 libxvid_encoder_deps="libxvid"
2905 libzvbi_teletext_decoder_deps="libzvbi"
2906 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2907 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2908 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2909 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2910 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2911
2912 # demuxers / muxers
2913 ac3_demuxer_select="ac3_parser"
2914 aiff_muxer_select="iso_media"
2915 asf_demuxer_select="riffdec"
2916 asf_o_demuxer_select="riffdec"
2917 asf_muxer_select="riffenc"
2918 asf_stream_muxer_select="asf_muxer"
2919 avi_demuxer_select="iso_media riffdec exif"
2920 avi_muxer_select="riffenc"
2921 caf_demuxer_select="iso_media riffdec"
2922 caf_muxer_select="iso_media"
2923 dash_muxer_select="mp4_muxer"
2924 dirac_demuxer_select="dirac_parser"
2925 dts_demuxer_select="dca_parser"
2926 dtshd_demuxer_select="dca_parser"
2927 dv_demuxer_select="dvprofile"
2928 dv_muxer_select="dvprofile"
2929 dxa_demuxer_select="riffdec"
2930 eac3_demuxer_select="ac3_parser"
2931 f4v_muxer_select="mov_muxer"
2932 fifo_muxer_deps="threads"
2933 flac_demuxer_select="flac_parser"
2934 hds_muxer_select="flv_muxer"
2935 hls_muxer_select="mpegts_muxer"
2936 image2_alias_pix_demuxer_select="image2_demuxer"
2937 image2_brender_pix_demuxer_select="image2_demuxer"
2938 ipod_muxer_select="mov_muxer"
2939 ismv_muxer_select="mov_muxer"
2940 matroska_audio_muxer_select="matroska_muxer"
2941 matroska_demuxer_select="iso_media riffdec"
2942 matroska_demuxer_suggest="bzlib lzo zlib"
2943 matroska_muxer_select="iso_media riffenc"
2944 mmf_muxer_select="riffenc"
2945 mov_demuxer_select="iso_media riffdec"
2946 mov_demuxer_suggest="zlib"
2947 mov_muxer_select="iso_media riffenc rtpenc_chain"
2948 mp3_demuxer_select="mpegaudio_parser"
2949 mp3_muxer_select="mpegaudioheader"
2950 mp4_muxer_select="mov_muxer"
2951 mpegts_demuxer_select="iso_media"
2952 mpegts_muxer_select="adts_muxer latm_muxer"
2953 mpegtsraw_demuxer_select="mpegts_demuxer"
2954 mxf_d10_muxer_select="mxf_muxer"
2955 mxf_opatom_muxer_select="mxf_muxer"
2956 nut_muxer_select="riffenc"
2957 nuv_demuxer_select="riffdec"
2958 oga_muxer_select="ogg_muxer"
2959 ogg_demuxer_select="dirac_parse"
2960 ogv_muxer_select="ogg_muxer"
2961 opus_muxer_select="ogg_muxer"
2962 psp_muxer_select="mov_muxer"
2963 rtp_demuxer_select="sdp_demuxer"
2964 rtp_muxer_select="golomb"
2965 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2966 rtsp_demuxer_select="http_protocol rtpdec"
2967 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2968 sap_demuxer_select="sdp_demuxer"
2969 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2970 sdp_demuxer_select="rtpdec"
2971 smoothstreaming_muxer_select="ismv_muxer"
2972 spdif_muxer_select="aac_parser"
2973 spx_muxer_select="ogg_muxer"
2974 swf_demuxer_suggest="zlib"
2975 tak_demuxer_select="tak_parser"
2976 tg2_muxer_select="mov_muxer"
2977 tgp_muxer_select="mov_muxer"
2978 vobsub_demuxer_select="mpegps_demuxer"
2979 w64_demuxer_select="wav_demuxer"
2980 w64_muxer_select="wav_muxer"
2981 wav_demuxer_select="riffdec"
2982 wav_muxer_select="riffenc"
2983 webm_muxer_select="iso_media riffenc"
2984 webm_dash_manifest_demuxer_select="matroska_demuxer"
2985 wtv_demuxer_select="mpegts_demuxer riffdec"
2986 wtv_muxer_select="mpegts_muxer riffenc"
2987 xmv_demuxer_select="riffdec"
2988 xwma_demuxer_select="riffdec"
2989
2990 # indevs / outdevs
2991 alsa_indev_deps="alsa"
2992 alsa_outdev_deps="alsa"
2993 avfoundation_indev_deps="pthreads"
2994 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2995 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2996 caca_outdev_deps="libcaca"
2997 decklink_indev_deps="decklink threads"
2998 decklink_indev_extralibs="-lstdc++"
2999 decklink_outdev_deps="decklink threads"
3000 decklink_outdev_extralibs="-lstdc++"
3001 dshow_indev_deps="IBaseFilter"
3002 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3003 dv1394_indev_deps="dv1394"
3004 dv1394_indev_select="dv_demuxer"
3005 fbdev_indev_deps="linux_fb_h"
3006 fbdev_outdev_deps="linux_fb_h"
3007 gdigrab_indev_deps="CreateDIBSection"
3008 gdigrab_indev_extralibs="-lgdi32"
3009 gdigrab_indev_select="bmp_decoder"
3010 iec61883_indev_deps="libiec61883"
3011 jack_indev_deps="jack"
3012 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3013 lavfi_indev_deps="avfilter"
3014 libcdio_indev_deps="libcdio"
3015 libdc1394_indev_deps="libdc1394"
3016 libv4l2_indev_deps="libv4l2"
3017 openal_indev_deps="openal"
3018 opengl_outdev_deps="opengl"
3019 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3020 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3021 pulse_indev_deps="libpulse"
3022 pulse_outdev_deps="libpulse"
3023 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3024 qtkit_indev_select="qtkit"
3025 sdl2_outdev_deps="sdl2"
3026 sndio_indev_deps="sndio"
3027 sndio_outdev_deps="sndio"
3028 v4l_indev_deps="linux_videodev_h"
3029 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3030 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3031 vfwcap_indev_deps="vfw32 vfwcap_defines"
3032 xcbgrab_indev_deps="libxcb"
3033 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3034 xv_outdev_extralibs="-lXv -lX11 -lXext"
3035
3036 # protocols
3037 async_protocol_deps="threads"
3038 bluray_protocol_deps="libbluray"
3039 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3040 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3041 ffrtmpcrypt_protocol_select="tcp_protocol"
3042 ffrtmphttp_protocol_deps="!librtmp_protocol"
3043 ffrtmphttp_protocol_select="http_protocol"
3044 ftp_protocol_select="tcp_protocol"
3045 gopher_protocol_select="network"
3046 http_protocol_select="tcp_protocol"
3047 httpproxy_protocol_select="tcp_protocol"
3048 https_protocol_select="tls_protocol"
3049 icecast_protocol_select="http_protocol"
3050 librtmp_protocol_deps="librtmp"
3051 librtmpe_protocol_deps="librtmp"
3052 librtmps_protocol_deps="librtmp"
3053 librtmpt_protocol_deps="librtmp"
3054 librtmpte_protocol_deps="librtmp"
3055 libsmbclient_protocol_deps="libsmbclient gplv3"
3056 libssh_protocol_deps="libssh"
3057 mmsh_protocol_select="http_protocol"
3058 mmst_protocol_select="network"
3059 rtmp_protocol_deps="!librtmp_protocol"
3060 rtmp_protocol_select="tcp_protocol"
3061 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3062 rtmps_protocol_deps="!librtmp_protocol"
3063 rtmps_protocol_select="tls_protocol"
3064 rtmpt_protocol_select="ffrtmphttp_protocol"
3065 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3066 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3067 rtp_protocol_select="udp_protocol"
3068 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3069 sctp_protocol_select="network"
3070 srtp_protocol_select="rtp_protocol srtp"
3071 tcp_protocol_select="network"
3072 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3073 tls_gnutls_protocol_select="tcp_protocol"
3074 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3075 tls_openssl_protocol_select="tcp_protocol"
3076 tls_schannel_protocol_deps="schannel"
3077 tls_schannel_protocol_select="tcp_protocol"
3078 tls_securetransport_protocol_deps="securetransport"
3079 tls_securetransport_protocol_select="tcp_protocol"
3080 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3081 udp_protocol_select="network"
3082 udplite_protocol_select="network"
3083 unix_protocol_deps="sys_un_h"
3084 unix_protocol_select="network"
3085
3086 # filters
3087 afftfilt_filter_deps="avcodec"
3088 afftfilt_filter_select="fft"
3089 afir_filter_deps="avcodec"
3090 afir_filter_select="fft"
3091 amovie_filter_deps="avcodec avformat"
3092 aresample_filter_deps="swresample"
3093 ass_filter_deps="libass"
3094 atempo_filter_deps="avcodec"
3095 atempo_filter_select="rdft"
3096 azmq_filter_deps="libzmq"
3097 blackframe_filter_deps="gpl"
3098 boxblur_filter_deps="gpl"
3099 bs2b_filter_deps="libbs2b"
3100 colormatrix_filter_deps="gpl"
3101 cover_rect_filter_deps="avcodec avformat gpl"
3102 cropdetect_filter_deps="gpl"
3103 deinterlace_qsv_filter_deps="libmfx"
3104 deinterlace_vaapi_filter_deps="vaapi"
3105 delogo_filter_deps="gpl"
3106 deshake_filter_select="pixelutils"
3107 drawtext_filter_deps="libfreetype"
3108 elbg_filter_deps="avcodec"
3109 eq_filter_deps="gpl"
3110 fftfilt_filter_deps="avcodec"
3111 fftfilt_filter_select="rdft"
3112 find_rect_filter_deps="avcodec avformat gpl"
3113 firequalizer_filter_deps="avcodec"
3114 firequalizer_filter_select="rdft"
3115 flite_filter_deps="libflite"
3116 framerate_filter_select="pixelutils"
3117 frei0r_filter_deps="frei0r dlopen"
3118 frei0r_src_filter_deps="frei0r dlopen"
3119 fspp_filter_deps="gpl"
3120 geq_filter_deps="gpl"
3121 histeq_filter_deps="gpl"
3122 hqdn3d_filter_deps="gpl"
3123 interlace_filter_deps="gpl"
3124 kerndeint_filter_deps="gpl"
3125 ladspa_filter_deps="ladspa dlopen"
3126 mcdeint_filter_deps="avcodec gpl"
3127 movie_filter_deps="avcodec avformat"
3128 mpdecimate_filter_deps="gpl"
3129 mpdecimate_filter_select="pixelutils"
3130 mptestsrc_filter_deps="gpl"
3131 negate_filter_deps="lut_filter"
3132 nnedi_filter_deps="gpl"
3133 ocr_filter_deps="libtesseract"
3134 ocv_filter_deps="libopencv"
3135 owdenoise_filter_deps="gpl"
3136 pan_filter_deps="swresample"
3137 perspective_filter_deps="gpl"
3138 phase_filter_deps="gpl"
3139 pp7_filter_deps="gpl"
3140 pp_filter_deps="gpl postproc"
3141 pullup_filter_deps="gpl"
3142 removelogo_filter_deps="avcodec avformat swscale"
3143 repeatfields_filter_deps="gpl"
3144 resample_filter_deps="avresample"
3145 rubberband_filter_deps="librubberband"
3146 sab_filter_deps="gpl swscale"
3147 scale2ref_filter_deps="swscale"
3148 scale_filter_deps="swscale"
3149 scale_qsv_filter_deps="libmfx"
3150 select_filter_select="pixelutils"
3151 showcqt_filter_deps="avcodec avformat swscale"
3152 showcqt_filter_select="fft"
3153 showfreqs_filter_deps="avcodec"
3154 showfreqs_filter_select="fft"
3155 showspectrum_filter_deps="avcodec"
3156 showspectrum_filter_select="fft"
3157 showspectrumpic_filter_deps="avcodec"
3158 showspectrumpic_filter_select="fft"
3159 signature_filter_deps="gpl avcodec avformat"
3160 smartblur_filter_deps="gpl swscale"
3161 sofalizer_filter_deps="netcdf avcodec"
3162 sofalizer_filter_select="fft"
3163 spectrumsynth_filter_deps="avcodec"
3164 spectrumsynth_filter_select="fft"
3165 spp_filter_deps="gpl avcodec"
3166 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3167 stereo3d_filter_deps="gpl"
3168 subtitles_filter_deps="avformat avcodec libass"
3169 super2xsai_filter_deps="gpl"
3170 pixfmts_super2xsai_test_deps="super2xsai_filter"
3171 tinterlace_filter_deps="gpl"
3172 tinterlace_merge_test_deps="tinterlace_filter"
3173 tinterlace_pad_test_deps="tinterlace_filter"
3174 uspp_filter_deps="gpl avcodec"
3175 vaguedenoiser_filter_deps="gpl"
3176 vidstabdetect_filter_deps="libvidstab"
3177 vidstabtransform_filter_deps="libvidstab"
3178 zmq_filter_deps="libzmq"
3179 zoompan_filter_deps="swscale"
3180 zscale_filter_deps="libzimg"
3181 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3182
3183 # examples
3184 avio_dir_cmd_deps="avformat avutil"
3185 avio_reading_deps="avformat avcodec avutil"
3186 decode_audio_example_deps="avcodec avutil"
3187 decode_video_example_deps="avcodec avutil"
3188 demuxing_decoding_example_deps="avcodec avformat avutil"
3189 encode_audio_example_deps="avcodec avutil"
3190 encode_video_example_deps="avcodec avutil"
3191 extract_mvs_example_deps="avcodec avformat avutil"
3192 filter_audio_example_deps="avfilter avutil"
3193 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3194 filtering_video_example_deps="avfilter avcodec avformat avutil"
3195 http_multiclient_example_deps="avformat avutil fork"
3196 metadata_example_deps="avformat avutil"
3197 muxing_example_deps="avcodec avformat avutil swscale"
3198 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3199 remuxing_example_deps="avcodec avformat avutil"
3200 resampling_audio_example_deps="avutil swresample"
3201 scaling_video_example_deps="avutil swscale"
3202 transcode_aac_example_deps="avcodec avformat swresample"
3203 transcoding_example_deps="avfilter avcodec avformat avutil"
3204
3205 # libraries, in linking order
3206 avcodec_deps="avutil"
3207 avcodec_select="null_bsf"
3208 avdevice_deps="avformat avcodec avutil"
3209 avfilter_deps="avutil"
3210 avformat_deps="avcodec avutil"
3211 avresample_deps="avutil"
3212 postproc_deps="avutil gpl"
3213 swresample_deps="avutil"
3214 swscale_deps="avutil"
3215
3216 # programs
3217 ffmpeg_deps="avcodec avfilter avformat swresample"
3218 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3219                null_filter
3220                trim_filter"
3221 ffplay_deps="avcodec avformat swscale swresample sdl2"
3222 ffplay_extralibs='$sdl2_extralibs'
3223 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3224 ffprobe_deps="avcodec avformat"
3225 ffserver_deps="avformat fork sarestart"
3226 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3227
3228 # documentation
3229 podpages_deps="perl"
3230 manpages_deps="perl pod2man"
3231 htmlpages_deps="perl"
3232 htmlpages_deps_any="makeinfo_html texi2html"
3233 txtpages_deps="perl makeinfo"
3234 doc_deps_any="manpages htmlpages podpages txtpages"
3235
3236 # default parameters
3237
3238 logfile="ffbuild/config.log"
3239
3240 # installation paths
3241 prefix_default="/usr/local"
3242 bindir_default='${prefix}/bin'
3243 datadir_default='${prefix}/share/ffmpeg'
3244 docdir_default='${prefix}/share/doc/ffmpeg'
3245 incdir_default='${prefix}/include'
3246 libdir_default='${prefix}/lib'
3247 mandir_default='${prefix}/share/man'
3248
3249 # toolchain
3250 ar_default="ar"
3251 cc_default="gcc"
3252 cxx_default="g++"
3253 host_cc_default="gcc"
3254 doxygen_default="doxygen"
3255 install="install"
3256 ln_s_default="ln -s -f"
3257 nm_default="nm -g"
3258 objformat="elf"
3259 pkg_config_default=pkg-config
3260 ranlib_default="ranlib"
3261 strip_default="strip"
3262 version_script='--version-script'
3263 yasmexe_default="yasm"
3264 windres_default="windres"
3265 nvcc_default="nvcc"
3266 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3267
3268 # OS
3269 target_os_default=$(tolower $(uname -s))
3270 host_os=$target_os_default
3271
3272 # machine
3273 if test "$target_os_default" = aix; then
3274     arch_default=$(uname -p)
3275     strip_default="strip -X32_64"
3276 else
3277     arch_default=$(uname -m)
3278 fi
3279 cpu="generic"
3280 intrinsics="none"
3281
3282 # configurable options
3283 enable $PROGRAM_LIST
3284 enable $DOCUMENT_LIST
3285 enable $EXAMPLE_LIST
3286 enable $(filter_out avresample $LIBRARY_LIST)
3287 enable stripping
3288
3289 enable asm
3290 enable debug
3291 enable doc
3292 enable faan faandct faanidct
3293 enable optimizations
3294 enable runtime_cpudetect
3295 enable safe_bitstream_reader
3296 enable static
3297 enable swscale_alpha
3298 enable valgrind_backtrace
3299
3300 sws_max_filter_size_default=256
3301 set_default sws_max_filter_size
3302
3303 # build settings
3304 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3305 LIBPREF="lib"
3306 LIBSUF=".a"
3307 FULLNAME='$(NAME)$(BUILDSUF)'
3308 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3309 SLIBPREF="lib"
3310 SLIBSUF=".so"
3311 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3312 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3313 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3314 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3315 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3316 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3317 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3318
3319 asflags_filter=echo
3320 cflags_filter=echo
3321 ldflags_filter=echo
3322
3323 AS_C='-c'
3324 AS_O='-o $@'
3325 CC_C='-c'
3326 CC_E='-E -o $@'
3327 CC_O='-o $@'
3328 CXX_C='-c'
3329 CXX_O='-o $@'
3330 OBJCC_C='-c'
3331 OBJCC_E='-E -o $@'
3332 OBJCC_O='-o $@'
3333 LD_O='-o $@'
3334 LD_LIB='-l%'
3335 LD_PATH='-L'
3336 HOSTCC_C='-c'
3337 HOSTCC_E='-E -o $@'
3338 HOSTCC_O='-o $@'
3339 HOSTLD_O='-o $@'
3340 NVCC_C='-c'
3341 NVCC_O='-o $@'
3342
3343 host_extralibs='-lm'
3344 host_cflags_filter=echo
3345 host_ldflags_filter=echo
3346
3347 target_path='$(CURDIR)'
3348
3349 # since the object filename is not given with the -MM flag, the compiler
3350 # is only able to print the basename, and we must add the path ourselves
3351 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3352 DEPFLAGS='-MM'
3353
3354 # find source path
3355 if test -f configure; then
3356     source_path=.
3357 else
3358     source_path=$(cd $(dirname "$0"); pwd)
3359     case "$source_path" in
3360         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3361     esac
3362     test -e "$source_path/config.h" &&
3363         die "Out of tree builds are impossible with config.h in source dir."
3364 fi
3365
3366 for v in "$@"; do
3367     r=${v#*=}
3368     l=${v%"$r"}
3369     r=$(sh_quote "$r")
3370     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3371 done
3372
3373 find_things(){
3374     thing=$1
3375     pattern=$2
3376     file=$source_path/$3
3377     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3378 }
3379
3380 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3381 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3382 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3383 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3384 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3385 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3386 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3387 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3388 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3389
3390 find_things_extern(){
3391     thing=$1
3392     pattern=$2
3393     file=$source_path/$3
3394     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3395 }
3396
3397 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3398 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3399
3400 ALL_COMPONENTS="
3401     $BSF_LIST
3402     $DECODER_LIST
3403     $DEMUXER_LIST
3404     $ENCODER_LIST
3405     $FILTER_LIST
3406     $HWACCEL_LIST
3407     $INDEV_LIST
3408     $MUXER_LIST
3409     $OUTDEV_LIST
3410     $PARSER_LIST
3411     $PROTOCOL_LIST
3412 "
3413
3414 for n in $COMPONENT_LIST; do
3415     v=$(toupper ${n%s})_LIST
3416     eval enable \$$v
3417     eval ${n}_if_any="\$$v"
3418 done
3419
3420 enable $ARCH_EXT_LIST
3421
3422 die_unknown(){
3423     echo "Unknown option \"$1\"."
3424     echo "See $0 --help for available options."
3425     exit 1
3426 }
3427
3428 print_in_columns() {
3429     cols=$(expr $ncols / 24)
3430     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3431 }
3432
3433 show_list() {
3434     suffix=_$1
3435     shift
3436     echo $* | sed s/$suffix//g | print_in_columns
3437     exit 0
3438 }
3439
3440 rand_list(){
3441     IFS=', '
3442     set -- $*
3443     unset IFS
3444     for thing; do
3445         comp=${thing%:*}
3446         prob=${thing#$comp}
3447         prob=${prob#:}
3448         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3449         echo "prob ${prob:-0.5}"
3450         printf '%s\n' $comp
3451     done
3452 }
3453
3454 do_random(){
3455     action=$1
3456     shift
3457     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3458     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3459 }
3460
3461 for opt do
3462     optval="${opt#*=}"
3463     case "$opt" in
3464         --extra-ldflags=*)
3465             add_ldflags $optval
3466         ;;
3467         --extra-ldexeflags=*)
3468             add_ldexeflags $optval
3469         ;;
3470         --extra-ldlibflags=*)
3471             add_ldlibflags $optval
3472         ;;
3473         --extra-libs=*)
3474             add_extralibs $optval
3475         ;;
3476         --disable-devices)
3477             disable $INDEV_LIST $OUTDEV_LIST
3478         ;;
3479         --enable-debug=*)
3480             debuglevel="$optval"
3481         ;;
3482         --disable-programs)
3483             disable $PROGRAM_LIST
3484         ;;
3485         --disable-everything)
3486             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3487         ;;
3488         --disable-all)
3489             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3490             disable $LIBRARY_LIST $PROGRAM_LIST doc
3491             enable avutil
3492         ;;
3493         --enable-random|--disable-random)
3494             action=${opt%%-random}
3495             do_random ${action#--} $COMPONENT_LIST
3496         ;;
3497         --enable-random=*|--disable-random=*)
3498             action=${opt%%-random=*}
3499             do_random ${action#--} $optval
3500         ;;
3501         --enable-*=*|--disable-*=*)
3502             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3503             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3504             eval list=\$$(toupper $thing)_LIST
3505             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3506             list=$(filter "$name" $list)
3507             [ "$list" = "" ] && warn "Option $opt did not match anything"
3508             $action $list
3509         ;;
3510         --enable-?*|--disable-?*)
3511             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3512             if is_in $option $COMPONENT_LIST; then
3513                 test $action = disable && action=unset
3514                 eval $action \$$(toupper ${option%s})_LIST
3515             elif is_in $option $CMDLINE_SELECT; then
3516                 $action $option
3517             else
3518                 die_unknown $opt
3519             fi
3520         ;;
3521         --list-*)
3522             NAME="${opt#--list-}"
3523             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3524             NAME=${NAME%s}
3525             eval show_list $NAME \$$(toupper $NAME)_LIST
3526         ;;
3527         --help|-h) show_help
3528         ;;
3529         --quiet|-q) quiet=yes
3530         ;;
3531         --fatal-warnings) enable fatal_warnings
3532         ;;
3533         --libfuzzer=*)
3534             libfuzzer_path="$optval"
3535         ;;
3536         *)
3537             optname="${opt%%=*}"
3538             optname="${optname#--}"
3539             optname=$(echo "$optname" | sed 's/-/_/g')
3540             if is_in $optname $CMDLINE_SET; then
3541                 eval $optname='$optval'
3542             elif is_in $optname $CMDLINE_APPEND; then
3543                 append $optname "$optval"
3544             else
3545                 die_unknown $opt
3546             fi
3547         ;;
3548     esac
3549 done
3550
3551 for e in $env; do
3552     eval "export $e"
3553 done
3554
3555 # Mark specifically enabled, but normally autodetected libraries as requested.
3556 for lib in $AUTODETECT_LIBS; do
3557     enabled $lib && request $lib
3558 done
3559
3560 # Enable platform codecs by default.
3561 enable_weak audiotoolbox
3562
3563 # Enable hwaccels by default.
3564 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3565 enable_weak xlib
3566
3567 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3568
3569 disabled logging && logfile=/dev/null
3570
3571 die_license_disabled() {
3572     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3573 }
3574
3575 die_license_disabled_gpl() {
3576     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3577 }
3578
3579 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3580 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3581
3582 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3583 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3584
3585 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3586
3587 # Disable all the library-specific components if the library itself
3588 # is disabled, see AVCODEC_LIST and following _LIST variables.
3589
3590 disable_components(){
3591     disabled ${1} && disable $(
3592         eval components="\$$(toupper ${1})_COMPONENTS"
3593         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3594     )
3595 }
3596
3597 map 'disable_components $v' $LIBRARY_LIST
3598
3599 mkdir -p ffbuild
3600 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3601 set >> $logfile
3602
3603 test -n "$valgrind" && toolchain="valgrind-memcheck"
3604
3605 enabled ossfuzz && {
3606     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3607     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3608 }
3609
3610 case "$toolchain" in
3611     *-asan)
3612         cc_default="${toolchain%-asan}"
3613         add_cflags  -fsanitize=address
3614         add_ldflags -fsanitize=address
3615     ;;
3616     *-msan)
3617         cc_default="${toolchain%-msan}"
3618         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3619         add_ldflags -fsanitize=memory
3620     ;;
3621     *-tsan)
3622         cc_default="${toolchain%-tsan}"
3623         add_cflags  -fsanitize=thread -fPIE
3624         add_ldflags -fsanitize=thread -pie
3625         case "$toolchain" in
3626             gcc-tsan)
3627                 add_cflags  -fPIC
3628                 add_ldflags -fPIC
3629                 ;;
3630         esac
3631     ;;
3632     *-usan)
3633         cc_default="${toolchain%-usan}"
3634         add_cflags  -fsanitize=undefined
3635         add_ldflags -fsanitize=undefined
3636     ;;
3637     valgrind-*)
3638         target_exec_default="valgrind"
3639         case "$toolchain" in
3640             valgrind-massif)
3641                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3642                 ;;
3643             valgrind-memcheck)
3644                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3645                 ;;
3646         esac
3647     ;;
3648     msvc)
3649         # Check whether the current MSVC version needs the C99 converter.
3650         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3651         # support enough of C99 to build ffmpeg. Default to the new
3652         # behaviour if the regexp was unable to match anything, since this
3653         # successfully parses the version number of existing supported
3654         # versions that require the converter (MSVC 2010 and 2012).
3655         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3656         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3657             cc_default="cl"
3658             cxx_default="cl"
3659         else
3660             cc_default="c99wrap cl"
3661             cxx_default="c99wrap cl"
3662         fi
3663         ld_default="$source_path/compat/windows/mslink"
3664         nm_default="dumpbin -symbols"
3665         ar_default="lib"
3666         case "$arch" in
3667         arm*)
3668             as_default="armasm"
3669             ;;
3670         esac
3671         target_os_default="win32"
3672         # Use a relative path for TMPDIR. This makes sure all the
3673         # ffconf temp files are written with a relative path, avoiding
3674         # issues with msys/win32 path conversion for MSVC parameters
3675         # such as -Fo<file> or -out:<file>.
3676         TMPDIR=.
3677     ;;
3678     icl)
3679         cc_default="icl"
3680         ld_default="xilink"
3681         nm_default="dumpbin -symbols"
3682         ar_default="xilib"
3683         target_os_default="win32"
3684         TMPDIR=.
3685     ;;
3686     gcov)
3687         add_cflags  -fprofile-arcs -ftest-coverage
3688         add_ldflags -fprofile-arcs -ftest-coverage
3689     ;;
3690     llvm-cov)
3691         add_cflags -fprofile-arcs -ftest-coverage
3692         add_ldflags --coverage
3693     ;;
3694     hardened)
3695         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3696         add_cflags   -fno-strict-overflow -fstack-protector-all
3697         add_ldflags  -Wl,-z,relro -Wl,-z,now
3698         add_cflags   -fPIE
3699         add_ldexeflags -fPIE -pie
3700     ;;
3701     ?*)
3702         die "Unknown toolchain $toolchain"
3703     ;;
3704 esac
3705
3706 test -n "$cross_prefix" && enable cross_compile
3707
3708 if enabled cross_compile; then
3709     test -n "$arch" && test -n "$target_os" ||
3710         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3711 fi
3712
3713 ar_default="${cross_prefix}${ar_default}"
3714 cc_default="${cross_prefix}${cc_default}"
3715 cxx_default="${cross_prefix}${cxx_default}"
3716 nm_default="${cross_prefix}${nm_default}"
3717 pkg_config_default="${cross_prefix}${pkg_config_default}"
3718 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3719     ranlib_default="${cross_prefix}${ranlib_default} -D"
3720 else
3721     ranlib_default="${cross_prefix}${ranlib_default}"
3722 fi
3723 strip_default="${cross_prefix}${strip_default}"
3724 windres_default="${cross_prefix}${windres_default}"
3725
3726 sysinclude_default="${sysroot}/usr/include"
3727
3728 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3729     target_exec target_os yasmexe nvcc
3730 enabled cross_compile || host_cc_default=$cc
3731 set_default host_cc
3732
3733 pkg_config_fail_message=""
3734 if ! $pkg_config --version >/dev/null 2>&1; then
3735     warn "$pkg_config not found, library detection may fail."
3736     pkg_config=false
3737 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3738     pkg_config_fail_message="
3739 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3740 fi
3741
3742 if test $doxygen != $doxygen_default && \
3743   ! $doxygen --version >/dev/null 2>&1; then
3744     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3745 fi
3746
3747 exesuf() {
3748     case $1 in
3749         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3750     esac
3751 }
3752
3753 EXESUF=$(exesuf $target_os)
3754 HOSTEXESUF=$(exesuf $host_os)
3755
3756 # set temporary file name
3757 : ${TMPDIR:=$TEMPDIR}
3758 : ${TMPDIR:=$TMP}
3759 : ${TMPDIR:=/tmp}
3760
3761 if [ -n "$tempprefix" ] ; then
3762     mktemp(){
3763         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3764         echo "$tmpname"
3765         mkdir "$tmpname"
3766     }
3767 elif ! check_cmd mktemp -u XXXXXX; then
3768     # simple replacement for missing mktemp
3769     # NOT SAFE FOR GENERAL USE
3770     mktemp(){
3771         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3772         echo "$tmpname"
3773         mkdir "$tmpname"
3774     }
3775 fi
3776
3777 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3778     die "Unable to create temporary directory in $TMPDIR."
3779
3780 tmpfile(){
3781     tmp="${FFTMPDIR}/test"$2
3782     (set -C; exec > $tmp) 2> /dev/null ||
3783         die "Unable to create temporary file in $FFTMPDIR."
3784     eval $1=$tmp
3785 }
3786
3787 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3788 trap 'exit 2' INT
3789
3790 tmpfile TMPASM .asm
3791 tmpfile TMPC   .c
3792 tmpfile TMPCPP .cpp
3793 tmpfile TMPE   $EXESUF
3794 tmpfile TMPH   .h
3795 tmpfile TMPM   .m
3796 tmpfile TMPO   .o
3797 tmpfile TMPS   .S
3798 tmpfile TMPSH  .sh
3799 tmpfile TMPV   .ver
3800
3801 unset -f mktemp
3802
3803 chmod +x $TMPE
3804
3805 # make sure we can execute files in $TMPDIR
3806 cat > $TMPSH 2>> $logfile <<EOF
3807 #! /bin/sh
3808 EOF
3809 chmod +x $TMPSH >> $logfile 2>&1
3810 if ! $TMPSH >> $logfile 2>&1; then
3811     cat <<EOF
3812 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3813 variable to another directory and make sure that it is not mounted noexec.
3814 EOF
3815     die "Sanity test failed."
3816 fi
3817
3818 armasm_flags(){
3819     for flag; do
3820         case $flag in
3821             # Filter out MSVC cl.exe options from cflags that shouldn't
3822             # be passed to gas-preprocessor
3823             -M[TD]*)                                            ;;
3824             *)                  echo $flag                      ;;
3825         esac
3826    done
3827 }
3828
3829 ccc_flags(){
3830     for flag; do
3831         case $flag in
3832             -std=c99)           echo -c99                       ;;
3833             -mcpu=*)            echo -arch ${flag#*=}           ;;
3834             -mieee)             echo -ieee                      ;;
3835             -O*|-fast)          echo $flag                      ;;
3836             -fno-math-errno)    echo -assume nomath_errno       ;;
3837             -g)                 echo -g3                        ;;
3838             -Wall)              echo -msg_enable level2         ;;
3839             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3840             -Wl,*)              echo $flag                      ;;
3841             -f*|-W*)                                            ;;
3842             *)                  echo $flag                      ;;
3843         esac
3844    done
3845 }
3846
3847 cparser_flags(){
3848     for flag; do
3849         case $flag in
3850             -Wno-switch)             echo -Wno-switch-enum ;;
3851             -Wno-format-zero-length) ;;
3852             -Wdisabled-optimization) ;;
3853             -Wno-pointer-sign)       echo -Wno-other ;;
3854             *)                       echo $flag ;;
3855         esac
3856     done
3857 }
3858
3859 msvc_common_flags(){
3860     for flag; do
3861         case $flag in
3862             # In addition to specifying certain flags under the compiler
3863             # specific filters, they must be specified here as well or else the
3864             # generic catch all at the bottom will print the original flag.
3865             -Wall)                ;;
3866             -Wextra)              ;;
3867             -std=c99)             ;;
3868             # Common flags
3869             -fomit-frame-pointer) ;;
3870             -g)                   echo -Z7 ;;
3871             -fno-math-errno)      ;;
3872             -fno-common)          ;;
3873             -fno-signed-zeros)    ;;
3874             -fPIC)                ;;
3875             -mthumb)              ;;
3876             -march=*)             ;;
3877             -lz)                  echo zlib.lib ;;
3878             -lx264)               echo libx264.lib ;;
3879             -lstdc++)             ;;
3880             -l*)                  echo ${flag#-l}.lib ;;
3881             -LARGEADDRESSAWARE)   echo $flag ;;
3882             -L*)                  echo -libpath:${flag#-L} ;;
3883             *)                    echo $flag ;;
3884         esac
3885     done
3886 }
3887
3888 msvc_flags(){
3889     msvc_common_flags "$@"
3890     for flag; do
3891         case $flag in
3892             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3893                                        -wd4554 ;;
3894             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3895                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3896                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3897                                        -wd4307 \
3898                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3899         esac
3900     done
3901 }
3902
3903 icl_flags(){
3904     msvc_common_flags "$@"
3905     for flag; do
3906         case $flag in
3907             # Despite what Intel's documentation says -Wall, which is supported
3908             # on Windows, does enable remarks so disable them here.
3909             -Wall)                echo $flag -Qdiag-disable:remark ;;
3910             -std=c99)             echo -Qstd=c99 ;;
3911             -flto)                echo -ipo ;;
3912         esac
3913     done
3914 }
3915
3916 icc_flags(){
3917     for flag; do
3918         case $flag in
3919             -flto)                echo -ipo ;;
3920             *)                    echo $flag ;;
3921         esac
3922     done
3923 }
3924
3925 pgi_flags(){
3926     for flag; do
3927         case $flag in
3928             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3929             -fomit-frame-pointer) echo -Mnoframe ;;
3930             -g)                   echo -gopt ;;
3931             *)                    echo $flag ;;
3932         esac
3933     done
3934 }
3935
3936 suncc_flags(){
3937     for flag; do
3938         case $flag in
3939             -march=*|-mcpu=*)
3940                 case "${flag#*=}" in
3941                     native)                   echo -xtarget=native       ;;
3942                     v9|niagara)               echo -xarch=sparc          ;;
3943                     ultrasparc)               echo -xarch=sparcvis       ;;
3944                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3945                     i586|pentium)             echo -xchip=pentium        ;;
3946                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3947                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3948                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3949                     pentium4*)          echo -xtarget=pentium4           ;;
3950                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3951                     *-sse3)             echo -xarch=sse3                 ;;
3952                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3953                     bonnell)                   echo -xarch=ssse3         ;;
3954                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3955                     westmere)                  echo -xtarget=westmere    ;;
3956                     silvermont)                echo -xarch=sse4_2        ;;
3957                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3958                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3959                                                echo -xarch=avx           ;;
3960                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3961                     btver1)                    echo -xarch=amdsse4a      ;;
3962                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3963                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3964                     k8|opteron|athlon64|athlon-fx)
3965                                                echo -xarch=sse2a         ;;
3966                     athlon*)                   echo -xarch=pentium_proa  ;;
3967                 esac
3968                 ;;
3969             -std=c99)             echo -xc99              ;;
3970             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3971             -fPIC)                echo -KPIC -xcode=pic32 ;;
3972             -W*,*)                echo $flag              ;;
3973             -f*-*|-W*|-mimpure-text)                      ;;
3974             -shared)              echo -G                 ;;
3975             *)                    echo $flag              ;;
3976         esac
3977     done
3978 }
3979
3980 tms470_flags(){
3981     for flag; do
3982         case $flag in
3983             -march=*|-mcpu=*)
3984                 case "${flag#*=}" in
3985                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3986                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3987                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3988                     armv6*|arm11*)          echo -mv=6   ;;
3989                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3990                                             echo -mv=5e  ;;
3991                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3992                 esac
3993                 ;;
3994             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3995             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3996             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3997             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3998             -msoft-float)   echo --float_support=vfplib       ;;
3999             -O[0-3]|-mf=*)  echo $flag                        ;;
4000             -g)             echo -g -mn                       ;;
4001             -pds=*)         echo $flag                        ;;
4002             -D*|-I*)        echo $flag                        ;;
4003             --gcc|--abi=*)  echo $flag                        ;;
4004             -me)            echo $flag                        ;;
4005         esac
4006     done
4007 }
4008
4009 probe_cc(){
4010     pfx=$1
4011     _cc=$2
4012     first=$3
4013
4014     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4015     unset _ld_o _ldflags _ld_lib _ld_path
4016     unset _depflags _DEPCMD _DEPFLAGS
4017     _flags_filter=echo
4018
4019     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4020         true # no-op to avoid reading stdin in following checks
4021     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4022         _type=llvm_gcc
4023         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4024         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4025         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4026         _cflags_speed='-O3'
4027         _cflags_size='-Os'
4028     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4029         _type=gcc
4030         gcc_version=$($_cc --version | head -n1)
4031         gcc_basever=$($_cc -dumpversion)
4032         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4033         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4034         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4035         case $gcc_basever in
4036             2) ;;
4037             2.*) ;;
4038             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4039         esac
4040         if [ "$first" = true ]; then
4041             case $gcc_basever in
4042                 4.2*)
4043                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4044             esac
4045         fi
4046         _cflags_speed='-O3'
4047         _cflags_size='-Os'
4048     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4049         _type=icc
4050         _ident=$($_cc --version | head -n1)
4051         _depflags='-MMD'
4052         _cflags_speed='-O3'
4053         _cflags_size='-Os'
4054         _cflags_noopt='-O1'
4055         _flags_filter=icc_flags
4056     elif $_cc -v 2>&1 | grep -q xlc; then
4057         _type=xlc
4058         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4059         _cflags_speed='-O5'
4060         _cflags_size='-O5 -qcompact'
4061     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4062         _type=ccc
4063         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4064         _DEPFLAGS='-M'
4065         _cflags_speed='-fast'
4066         _cflags_size='-O1'
4067         _flags_filter=ccc_flags
4068     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4069         test -d "$sysroot" || die "No valid sysroot specified."
4070         _type=armcc
4071         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4072         armcc_conf="$PWD/armcc.conf"
4073         $_cc --arm_linux_configure                 \
4074              --arm_linux_config_file="$armcc_conf" \
4075              --configure_sysroot="$sysroot"        \
4076              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4077              die "Error creating armcc configuration file."
4078         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4079         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4080         as_default="${cross_prefix}gcc"
4081         _depflags='-MMD'
4082         _cflags_speed='-O3'
4083         _cflags_size='-Os'
4084     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4085         _type=tms470
4086         _ident=$($_cc -version | head -n1 | tr -s ' ')
4087         _flags='--gcc --abi=eabi -me'
4088         _cc_e='-ppl -fe=$@'
4089         _cc_o='-fe=$@'
4090         _depflags='-ppa -ppd=$(@:.o=.d)'
4091         _cflags_speed='-O3 -mf=5'
4092         _cflags_size='-O3 -mf=2'
4093         _flags_filter=tms470_flags
4094     elif $_cc -v 2>&1 | grep -q clang; then
4095         _type=clang
4096         _ident=$($_cc --version 2>/dev/null | head -n1)
4097         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4098         _cflags_speed='-O3'
4099         _cflags_size='-Oz'
4100     elif $_cc -V 2>&1 | grep -q Sun; then
4101         _type=suncc
4102         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4103         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4104         _DEPFLAGS='-xM1 -xc99'
4105         _ldflags='-std=c99'
4106         _cflags_speed='-O5'
4107         _cflags_size='-O5 -xspace'
4108         _flags_filter=suncc_flags
4109     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4110         _type=pathscale
4111         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4112         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4113         _cflags_speed='-O2'
4114         _cflags_size='-Os'
4115         _flags_filter='filter_out -Wdisabled-optimization'
4116     elif $_cc -v 2>&1 | grep -q Open64; then
4117         _type=open64
4118         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4119         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4120         _cflags_speed='-O2'
4121         _cflags_size='-Os'
4122         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4123     elif $_cc -V 2>&1 | grep -q Portland; then
4124         _type=pgi
4125         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4126         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4127         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4128         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4129         _cflags_noopt="-O"
4130         _flags_filter=pgi_flags
4131     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4132         _type=armasm
4133         _ident=$($_cc | head -n1)
4134         # 4509: "This form of conditional instruction is deprecated"
4135         _flags="-nologo -ignore 4509"
4136         _flags_filter=armasm_flags
4137     elif $_cc 2>&1 | grep -q Intel; then
4138         _type=icl
4139         _ident=$($_cc 2>&1 | head -n1)
4140         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4141         # Not only is O3 broken on 13.x+ but it is slower on all previous
4142         # versions (tested) as well.
4143         _cflags_speed="-O2"
4144         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4145         if $_cc 2>&1 | grep -q Linker; then
4146             _ld_o='-out:$@'
4147         else
4148             _ld_o='-Fe$@'
4149         fi
4150         _cc_o='-Fo$@'
4151         _cc_e='-P'
4152         _flags_filter=icl_flags
4153         _ld_lib='lib%.a'
4154         _ld_path='-libpath:'
4155         # -Qdiag-error to make icl error when seeing certain unknown arguments
4156         _flags='-nologo -Qdiag-error:4044,10157'
4157         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4158         # with MSVC which enables it by default.
4159         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4160         disable stripping
4161     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4162         # lld can emulate multiple different linkers; in ms link.exe mode,
4163         # the -? parameter gives the help output which contains an identifyable
4164         # string, while it gives an error in other modes.
4165         _type=lld-link
4166         # The link.exe mode doesn't have a switch for getting the version,
4167         # but we can force it back to gnu mode and get the version from there.
4168         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4169         _ld_o='-out:$@'
4170         _flags_filter=msvc_flags
4171         _ld_lib='lib%.a'
4172         _ld_path='-libpath:'
4173     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4174         _type=msvc
4175         _ident=$($_cc 2>&1 | head -n1)
4176         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4177         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4178         _cflags_speed="-O2"
4179         _cflags_size="-O1"
4180         _cflags_noopt="-O1"
4181         if $_cc -nologo- 2>&1 | grep -q Linker; then
4182             _ld_o='-out:$@'
4183         else
4184             _ld_o='-Fe$@'
4185         fi
4186         _cc_o='-Fo$@'
4187         _cc_e='-P -Fi$@'
4188         _flags_filter=msvc_flags
4189         _ld_lib='lib%.a'
4190         _ld_path='-libpath:'
4191         _flags='-nologo'
4192         disable stripping
4193     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4194         _type=cparser
4195         _ident=$($_cc --version | head -n1)
4196         _depflags='-MMD'
4197         _cflags_speed='-O4'
4198         _cflags_size='-O2'
4199         _flags_filter=cparser_flags
4200     fi
4201
4202     eval ${pfx}_type=\$_type
4203     eval ${pfx}_ident=\$_ident
4204 }
4205
4206 set_ccvars(){
4207     eval ${1}_C=\${_cc_c-\${${1}_C}}
4208     eval ${1}_E=\${_cc_e-\${${1}_E}}
4209     eval ${1}_O=\${_cc_o-\${${1}_O}}
4210
4211     if [ -n "$_depflags" ]; then
4212         eval ${1}_DEPFLAGS=\$_depflags
4213     else
4214         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4215         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4216         eval DEP${1}FLAGS=\$_flags
4217     fi
4218 }
4219
4220 probe_cc cc "$cc" "true"
4221 cflags_filter=$_flags_filter
4222 cflags_speed=$_cflags_speed
4223 cflags_size=$_cflags_size
4224 cflags_noopt=$_cflags_noopt
4225 add_cflags $_flags $_cflags
4226 cc_ldflags=$_ldflags
4227 set_ccvars CC
4228 set_ccvars CXX
4229
4230 probe_cc hostcc "$host_cc"
4231 host_cflags_filter=$_flags_filter
4232 host_cflags_speed=$_cflags_speed
4233 add_host_cflags  $_flags $_cflags
4234 set_ccvars HOSTCC
4235
4236 test -n "$cc_type" && enable $cc_type ||
4237     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4238
4239 : ${as_default:=$cc}
4240 : ${objcc_default:=$cc}
4241 : ${dep_cc_default:=$cc}
4242 : ${ld_default:=$cc}
4243 : ${host_ld_default:=$host_cc}
4244 set_default ar as objcc dep_cc ld ln_s host_ld windres
4245
4246 probe_cc as "$as"
4247 asflags_filter=$_flags_filter
4248 add_asflags $_flags $_cflags
4249 set_ccvars AS
4250
4251 probe_cc objcc "$objcc"
4252 objcflags_filter=$_flags_filter
4253 add_objcflags $_flags $_cflags
4254 set_ccvars OBJC
4255
4256 probe_cc ld "$ld"
4257 ldflags_filter=$_flags_filter
4258 add_ldflags $_flags $_ldflags
4259 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4260 LD_O=${_ld_o-$LD_O}
4261 LD_LIB=${_ld_lib-$LD_LIB}
4262 LD_PATH=${_ld_path-$LD_PATH}
4263
4264 probe_cc hostld "$host_ld"
4265 host_ldflags_filter=$_flags_filter
4266 add_host_ldflags $_flags $_ldflags
4267 HOSTLD_O=${_ld_o-$HOSTLD_O}
4268
4269 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4270     probe_cc depcc "$dep_cc"
4271     CCDEP=${_DEPCMD:-$DEPCMD}
4272     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4273     DEPCCFLAGS=$_flags
4274 fi
4275
4276 if $ar 2>&1 | grep -q Microsoft; then
4277     arflags="-nologo"
4278     ar_o='-out:$@'
4279 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4280     arflags="rq"
4281     ar_o='$@'
4282 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4283     arflags='-Xany -r -c'
4284     ar_o='$@'
4285 elif $ar 2>&1 | grep -q "\[D\] "; then
4286     arflags="rcD"
4287     ar_o='$@'
4288 else
4289     arflags="rc"
4290     ar_o='$@'
4291 fi
4292
4293 add_cflags $extra_cflags
4294 add_cxxflags $extra_cxxflags
4295 add_objcflags $extra_objcflags
4296 add_asflags $extra_cflags
4297
4298 if test -n "$sysroot"; then
4299     case "$cc_type" in
4300         gcc|llvm_gcc|clang)
4301             add_cppflags --sysroot="$sysroot"
4302             add_ldflags --sysroot="$sysroot"
4303 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4304             add_cppflags -isysroot "$sysroot"
4305             add_ldflags -isysroot "$sysroot"
4306         ;;
4307         tms470)
4308             add_cppflags -I"$sysinclude"
4309             add_ldflags  --sysroot="$sysroot"
4310         ;;
4311     esac
4312 fi
4313
4314 if test "$cpu" = host; then
4315     enabled cross_compile &&
4316         die "--cpu=host makes no sense when cross-compiling."
4317
4318     case "$cc_type" in
4319         gcc|llvm_gcc)
4320             check_native(){
4321                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4322                 sed -n "/cc1.*$1=/{
4323                             s/.*$1=\\([^ ]*\\).*/\\1/
4324                             p
4325                             q
4326                         }" $TMPE
4327             }
4328             cpu=$(check_native -march || check_native -mcpu)
4329         ;;
4330         clang)
4331             check_native(){
4332                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4333                 sed -n "/cc1.*-target-cpu /{
4334                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4335                             p
4336                             q
4337                         }" $TMPE
4338             }
4339             cpu=$(check_native -march)
4340         ;;
4341     esac
4342
4343     test "${cpu:-host}" = host &&
4344         die "--cpu=host not supported with compiler $cc"
4345 fi
4346
4347 # Deal with common $arch aliases
4348 case "$arch" in
4349     aarch64|arm64)
4350         arch="aarch64"
4351     ;;
4352     arm*|iPad*|iPhone*)
4353         arch="arm"
4354     ;;
4355     mips*|IP*)
4356         case "$arch" in
4357         *el)
4358             add_cppflags -EL
4359             add_ldflags -EL
4360         ;;
4361         *eb)
4362             add_cppflags -EB
4363             add_ldflags -EB
4364         ;;
4365         esac
4366         arch="mips"
4367     ;;
4368     parisc*|hppa*)
4369         arch="parisc"
4370     ;;
4371     "Power Macintosh"|ppc*|powerpc*)
4372         arch="ppc"
4373     ;;
4374     s390|s390x)
4375         arch="s390"
4376     ;;
4377     sh4|sh)
4378         arch="sh4"
4379     ;;
4380     sun4*|sparc*)
4381         arch="sparc"
4382     ;;
4383     tilegx|tile-gx)
4384         arch="tilegx"
4385     ;;
4386     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4387         arch="x86"
4388     ;;
4389 esac
4390
4391 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4392 enable $arch
4393
4394 # Add processor-specific flags
4395 if enabled aarch64; then
4396
4397     case $cpu in
4398         armv*)
4399             cpuflags="-march=$cpu"
4400         ;;
4401         *)
4402             cpuflags="-mcpu=$cpu"
4403         ;;
4404     esac
4405
4406 elif enabled alpha; then
4407
4408     cpuflags="-mcpu=$cpu"
4409
4410 elif enabled arm; then
4411
4412     check_arm_arch() {
4413         check_cpp_condition stddef.h \
4414             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4415             $cpuflags
4416     }
4417
4418     probe_arm_arch() {
4419         if   check_arm_arch 4;        then echo armv4
4420         elif check_arm_arch 4T;       then echo armv4t
4421         elif check_arm_arch 5;        then echo armv5
4422         elif check_arm_arch 5E;       then echo armv5e
4423         elif check_arm_arch 5T;       then echo armv5t
4424         elif check_arm_arch 5TE;      then echo armv5te
4425         elif check_arm_arch 5TEJ;     then echo armv5te
4426         elif check_arm_arch 6;        then echo armv6
4427         elif check_arm_arch 6J;       then echo armv6j
4428         elif check_arm_arch 6K;       then echo armv6k
4429         elif check_arm_arch 6Z;       then echo armv6z
4430         elif check_arm_arch 6ZK;      then echo armv6zk
4431         elif check_arm_arch 6T2;      then echo armv6t2
4432         elif check_arm_arch 7;        then echo armv7
4433         elif check_arm_arch 7A  7_A;  then echo armv7-a
4434         elif check_arm_arch 7S;       then echo armv7-a
4435         elif check_arm_arch 7R  7_R;  then echo armv7-r
4436         elif check_arm_arch 7M  7_M;  then echo armv7-m
4437         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4438         elif check_arm_arch 8A  8_A;  then echo armv8-a
4439         fi
4440     }
4441
4442     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4443
4444     case $cpu in
4445         armv*)
4446             cpuflags="-march=$cpu"
4447             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4448         ;;
4449         *)
4450             cpuflags="-mcpu=$cpu"
4451             case $cpu in
4452                 cortex-a*)                               subarch=armv7a  ;;
4453                 cortex-r*)                               subarch=armv7r  ;;
4454                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4455                 arm11*)                                  subarch=armv6   ;;
4456                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4457                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4458                 *)                             subarch=$(probe_arm_arch) ;;
4459             esac
4460         ;;
4461     esac
4462
4463     case "$subarch" in
4464         armv5t*)    enable fast_clz                ;;
4465         armv[6-8]*)
4466             enable fast_clz
4467             disabled fast_unaligned || enable fast_unaligned
4468             ;;
4469     esac
4470
4471 elif enabled avr32; then
4472
4473     case $cpu in
4474         ap7[02]0[0-2])
4475             subarch="avr32_ap"
4476             cpuflags="-mpart=$cpu"
4477         ;;
4478         ap)
4479             subarch="avr32_ap"
4480             cpuflags="-march=$cpu"
4481         ;;
4482         uc3[ab]*)
4483             subarch="avr32_uc"
4484             cpuflags="-mcpu=$cpu"
4485         ;;
4486         uc)
4487             subarch="avr32_uc"
4488             cpuflags="-march=$cpu"
4489         ;;
4490     esac
4491
4492 elif enabled bfin; then
4493
4494     cpuflags="-mcpu=$cpu"
4495
4496 elif enabled mips; then
4497
4498     cpuflags="-march=$cpu"
4499
4500     if [ "$cpu" != "generic" ]; then
4501         disable mips32r2
4502         disable mips32r5
4503         disable mips64r2
4504         disable mips32r6
4505         disable mips64r6
4506         disable loongson2
4507         disable loongson3
4508
4509         case $cpu in
4510             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4511                 enable mips32r2
4512                 disable msa
4513             ;;
4514             p5600|i6400|p6600)
4515                 disable mipsdsp
4516                 disable mipsdspr2
4517             ;;
4518             loongson*)
4519                 enable loongson2
4520                 enable loongson3
4521                 enable local_aligned_8 local_aligned_16 local_aligned_32
4522                 enable simd_align_16
4523                 enable fast_64bit
4524                 enable fast_clz
4525                 enable fast_cmov
4526                 enable fast_unaligned
4527                 disable aligned_stack
4528                 disable mipsfpu
4529                 disable mipsdsp
4530                 disable mipsdspr2
4531                 case $cpu in
4532                     loongson3*)
4533                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4534                     ;;
4535                     loongson2e)
4536                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4537                     ;;
4538                     loongson2f)
4539                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4540                     ;;
4541                 esac
4542             ;;
4543             *)
4544                 # Unknown CPU. Disable everything.
4545                 warn "unknown CPU. Disabling all MIPS optimizations."
4546                 disable mipsfpu
4547                 disable mipsdsp
4548                 disable mipsdspr2
4549                 disable msa
4550                 disable mmi
4551             ;;
4552         esac
4553
4554         case $cpu in
4555             24kc)
4556                 disable mipsfpu
4557                 disable mipsdsp
4558                 disable mipsdspr2
4559             ;;
4560             24kf*)
4561                 disable mipsdsp
4562                 disable mipsdspr2
4563             ;;
4564             24kec|34kc|1004kc)
4565                 disable mipsfpu
4566                 disable mipsdspr2
4567             ;;
4568             24kef*|34kf*|1004kf*)
4569                 disable mipsdspr2
4570             ;;
4571             74kc)
4572                 disable mipsfpu
4573             ;;
4574             p5600)
4575                 enable mips32r5
4576                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4577             ;;
4578             i6400)
4579                 enable mips64r6
4580                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4581             ;;
4582             p6600)
4583                 enable mips64r6
4584                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4585             ;;
4586         esac
4587     else
4588         # We do not disable anything. Is up to the user to disable the unwanted features.
4589         warn 'generic cpu selected'
4590     fi
4591
4592 elif enabled ppc; then
4593
4594     disable ldbrx
4595
4596     case $(tolower $cpu) in
4597         601|ppc601|powerpc601)
4598             cpuflags="-mcpu=601"
4599             disable altivec
4600         ;;
4601         603*|ppc603*|powerpc603*)
4602             cpuflags="-mcpu=603"
4603             disable altivec
4604         ;;
4605         604*|ppc604*|powerpc604*)
4606             cpuflags="-mcpu=604"
4607             disable altivec
4608         ;;
4609         g3|75*|ppc75*|powerpc75*)
4610             cpuflags="-mcpu=750"
4611             disable altivec
4612         ;;
4613         g4|745*|ppc745*|powerpc745*)
4614             cpuflags="-mcpu=7450"
4615             disable vsx
4616         ;;
4617         74*|ppc74*|powerpc74*)
4618             cpuflags="-mcpu=7400"
4619             disable vsx
4620         ;;
4621         g5|970|ppc970|powerpc970)
4622             cpuflags="-mcpu=970"
4623             disable vsx
4624         ;;
4625         power[3-6]*)
4626             cpuflags="-mcpu=$cpu"
4627             disable vsx
4628         ;;
4629         power[7-8]*)
4630             cpuflags="-mcpu=$cpu"
4631         ;;
4632         cell)
4633             cpuflags="-mcpu=cell"
4634             enable ldbrx
4635             disable vsx
4636         ;;
4637         e500mc)
4638             cpuflags="-mcpu=e500mc"
4639             disable altivec
4640         ;;
4641         e500v2)
4642             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4643             disable altivec
4644             disable dcbzl
4645         ;;
4646         e500)
4647             cpuflags="-mcpu=8540 -mhard-float"
4648             disable altivec
4649             disable dcbzl
4650         ;;
4651     esac
4652
4653 elif enabled sparc; then
4654
4655     case $cpu in
4656         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4657             cpuflags="-mcpu=$cpu"
4658         ;;
4659         ultrasparc*|niagara[234])
4660             cpuflags="-mcpu=$cpu"
4661         ;;
4662     esac
4663
4664 elif enabled x86; then
4665
4666     case $cpu in
4667         i[345]86|pentium)
4668             cpuflags="-march=$cpu"
4669             disable i686
4670             disable mmx
4671         ;;
4672         # targets that do NOT support nopl and conditional mov (cmov)
4673         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4674             cpuflags="-march=$cpu"
4675             disable i686
4676         ;;
4677         # targets that do support nopl and conditional mov (cmov)
4678         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4679         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4680         |amdfam10|barcelona|b[dt]ver*|znver*)
4681             cpuflags="-march=$cpu"
4682             enable i686
4683             enable fast_cmov
4684         ;;
4685         # targets that do support conditional mov but on which it's slow
4686         pentium4|pentium4m|prescott|nocona)
4687             cpuflags="-march=$cpu"
4688             enable i686
4689             disable fast_cmov
4690         ;;
4691     esac
4692
4693 fi
4694
4695 if [ "$cpu" != generic ]; then
4696     add_cflags  $cpuflags
4697     add_asflags $cpuflags
4698     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4699 fi
4700
4701 # compiler sanity check
4702 check_exec <<EOF
4703 int main(void){ return 0; }
4704 EOF
4705 if test "$?" != 0; then
4706     echo "$cc is unable to create an executable file."
4707     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4708         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4709         echo "Only do this if you know what cross compiling means."
4710     fi
4711     die "C compiler test failed."
4712 fi
4713
4714 add_cppflags -D_ISOC99_SOURCE
4715 add_cxxflags -D__STDC_CONSTANT_MACROS
4716 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4717
4718 # some compilers silently accept -std=c11, so we also need to check that the
4719 # version macro is defined properly
4720 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4721     add_cflags -std=c11
4722 else
4723     check_cflags -std=c99
4724 fi
4725
4726 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4727 #include <stdlib.h>
4728 EOF
4729 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4730 #include <stdlib.h>
4731 EOF
4732
4733 add_host_cppflags -D_ISOC99_SOURCE
4734 check_host_cflags -std=c99
4735 check_host_cflags -Wall
4736 check_host_cflags $host_cflags_speed
4737
4738 check_64bit(){
4739     arch32=$1
4740     arch64=$2
4741     expr=$3
4742     check_code cc "" "int test[2*($expr) - 1]" &&
4743         subarch=$arch64 || subarch=$arch32
4744 }
4745
4746 case "$arch" in
4747     aarch64|alpha|ia64)
4748         spic=$shared
4749     ;;
4750     mips)
4751         check_64bit mips mips64 '_MIPS_SIM > 1'
4752         spic=$shared
4753     ;;
4754     parisc)
4755         check_64bit parisc parisc64 'sizeof(void *) > 4'
4756         spic=$shared
4757     ;;
4758     ppc)
4759         check_64bit ppc ppc64 'sizeof(void *) > 4'
4760         spic=$shared
4761     ;;
4762     s390)
4763         check_64bit s390 s390x 'sizeof(void *) > 4'
4764         spic=$shared
4765     ;;
4766     sparc)
4767         check_64bit sparc sparc64 'sizeof(void *) > 4'
4768         spic=$shared
4769     ;;
4770     x86)
4771         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4772         # Treat x32 as x64 for now. Note it also needs spic=$shared
4773         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4774             subarch=x86_64
4775         if test "$subarch" = "x86_64"; then
4776             spic=$shared
4777         fi
4778     ;;
4779     ppc)
4780         check_cc <<EOF && subarch="ppc64"
4781         int test[(int)sizeof(char*) - 7];
4782 EOF
4783     ;;
4784 esac
4785
4786 enable $subarch
4787 enabled spic && enable_weak pic
4788
4789 # OS specific
4790 case $target_os in
4791     aix)
4792         SHFLAGS=-shared
4793         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4794         enabled shared && add_ldflags -Wl,-brtl
4795         ;;
4796     android)
4797         disable symver
4798         enable section_data_rel_ro
4799         SLIB_INSTALL_NAME='$(SLIBNAME)'
4800         SLIB_INSTALL_LINKS=
4801         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4802         ;;
4803     haiku)
4804         prefix_default="/boot/common"
4805         network_extralibs="-lnetwork"
4806         host_extralibs=
4807         ;;
4808     sunos)
4809         SHFLAGS='-shared -Wl,-h,$$(@F)'
4810         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4811         network_extralibs="-lsocket -lnsl"
4812         add_cppflags -D__EXTENSIONS__
4813         # When using suncc to build, the Solaris linker will mark
4814         # an executable with each instruction set encountered by
4815         # the Solaris assembler.  As our libraries contain their own
4816         # guards for processor-specific code, instead suppress
4817         # generation of the HWCAPS ELF section on Solaris x86 only.
4818         enabled_all suncc x86 &&
4819             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4820             add_ldflags -Wl,-M,mapfile
4821         nm_default='nm -P -g'
4822         version_script='-M'
4823         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4824         ;;
4825     netbsd)
4826         disable symver
4827         oss_indev_extralibs="-lossaudio"
4828         oss_outdev_extralibs="-lossaudio"
4829         enabled gcc || check_ldflags -Wl,-zmuldefs
4830         ;;
4831     openbsd|bitrig)
4832         disable symver
4833         SHFLAGS='-shared'
4834         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4835         SLIB_INSTALL_LINKS=
4836         oss_indev_extralibs="-lossaudio"
4837         oss_outdev_extralibs="-lossaudio"
4838         ;;
4839     dragonfly)
4840         disable symver
4841         ;;
4842     freebsd)
4843         ;;
4844     bsd/os)
4845         add_extralibs -lpoll -lgnugetopt
4846         strip="strip -d"
4847         ;;
4848     darwin)
4849         enabled ppc && add_asflags -force_cpusubtype_ALL
4850         install_name_dir_default='$(SHLIBDIR)'
4851         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4852         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4853         strip="${strip} -x"
4854         add_ldflags -Wl,-dynamic,-search_paths_first
4855         SLIBSUF=".dylib"
4856         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4857         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4858         objformat="macho"
4859         enabled x86_64 && objformat="macho64"
4860         enabled_any pic shared x86_64 ||
4861             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4862         check_header dispatch/dispatch.h &&
4863             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4864         version_script='-exported_symbols_list'
4865         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'