avcodec/pixlet: Fix runtime error: signed integer overflow: 2147483647 + 32 cannot...
[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-libnut          enable NUT (de)muxing via libnut,
238                            native (de)muxer exists [no]
239   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
240   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
241   --enable-libopencv       enable video filtering via libopencv [no]
242   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
243   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
244   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
245   --enable-libopus         enable Opus de/encoding via libopus [no]
246   --enable-libpulse        enable Pulseaudio input via libpulse [no]
247   --enable-librsvg         enable SVG rasterization via librsvg [no]
248   --enable-librubberband   enable rubberband needed for rubberband filter [no]
249   --enable-librtmp         enable RTMP[E] support via librtmp [no]
250   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
251   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
263   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
264                            native implementation exists [no]
265   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
266   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
267   --enable-libwebp         enable WebP encoding via libwebp [no]
268   --enable-libx264         enable H.264 encoding via x264 [no]
269   --enable-libx265         enable HEVC encoding via x265 [no]
270   --enable-libxavs         enable AVS encoding via xavs [no]
271   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
272   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
273   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
274   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
275   --enable-libxvid         enable Xvid encoding via xvidcore,
276                            native MPEG-4/Xvid encoder exists [no]
277   --enable-libzimg         enable z.lib, needed for zscale filter [no]
278   --enable-libzmq          enable message passing via libzmq [no]
279   --enable-libzvbi         enable teletext support via libzvbi [no]
280   --disable-lzma           disable lzma [autodetect]
281   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
282   --enable-mediacodec      enable Android MediaCodec support [no]
283   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl2           disable sdl2 [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297   The following libraries provide various hardware acceleration features:
298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
300   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
301   --disable-cuvid          disable Nvidia CUVID support [autodetect]
302   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
303   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
304   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
305   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
306   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
307   --disable-nvenc          disable Nvidia video encoding code [autodetect]
308   --enable-omx             enable OpenMAX IL code [no]
309   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
310   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
311   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
312   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
313   --disable-videotoolbox   disable VideoToolbox code [autodetect]
314
315 Toolchain options:
316   --arch=ARCH              select architecture [$arch]
317   --cpu=CPU                select the minimum required CPU (affects
318                            instruction selection, may crash on older CPUs)
319   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
320   --progs-suffix=SUFFIX    program name suffix []
321   --enable-cross-compile   assume a cross-compiler is used
322   --sysroot=PATH           root of cross-build tree
323   --sysinclude=PATH        location of cross-build system headers
324   --target-os=OS           compiler targets OS [$target_os]
325   --target-exec=CMD        command to run executables on target
326   --target-path=DIR        path to view of build directory on target
327   --target-samples=DIR     path to samples directory on target
328   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
329   --toolchain=NAME         set tool defaults according to NAME
330   --nm=NM                  use nm tool NM [$nm_default]
331   --ar=AR                  use archive tool AR [$ar_default]
332   --as=AS                  use assembler AS [$as_default]
333   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
334   --strip=STRIP            use strip tool STRIP [$strip_default]
335   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
336   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
337   --cc=CC                  use C compiler CC [$cc_default]
338   --cxx=CXX                use C compiler CXX [$cxx_default]
339   --objcc=OCC              use ObjC compiler OCC [$cc_default]
340   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
341   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
342   --ld=LD                  use linker LD [$ld_default]
343   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
344   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
345   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
346   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
347   --host-cc=HOSTCC         use host C compiler HOSTCC
348   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
349   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
350   --host-ld=HOSTLD         use host linker HOSTLD
351   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
352   --host-libs=HLIBS        use libs HLIBS when linking for host
353   --host-os=OS             compiler host OS [$target_os]
354   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
355   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
356   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
357   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
358   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
359   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
360   --extra-libs=ELIBS       add ELIBS [$ELIBS]
361   --extra-version=STRING   version string suffix []
362   --optflags=OPTFLAGS      override optimization-related compiler flags
363   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
364   --build-suffix=SUFFIX    library name suffix []
365   --enable-pic             build position-independent code
366   --enable-thumb           compile for Thumb instruction set
367   --enable-lto             use link-time optimization
368   --env="ENV=override"     override the environment variables
369
370 Advanced options (experts only):
371   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
372   --custom-allocator=NAME  use a supported custom allocator
373   --disable-symver         disable symbol versioning
374   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
375   --disable-safe-bitstream-reader
376                            disable buffer boundary checking in bitreaders
377                            (faster, but may crash)
378   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
379
380 Optimization options (experts only):
381   --disable-asm            disable all assembly optimizations
382   --disable-altivec        disable AltiVec optimizations
383   --disable-vsx            disable VSX optimizations
384   --disable-power8         disable POWER8 optimizations
385   --disable-amd3dnow       disable 3DNow! optimizations
386   --disable-amd3dnowext    disable 3DNow! extended optimizations
387   --disable-mmx            disable MMX optimizations
388   --disable-mmxext         disable MMXEXT optimizations
389   --disable-sse            disable SSE optimizations
390   --disable-sse2           disable SSE2 optimizations
391   --disable-sse3           disable SSE3 optimizations
392   --disable-ssse3          disable SSSE3 optimizations
393   --disable-sse4           disable SSE4 optimizations
394   --disable-sse42          disable SSE4.2 optimizations
395   --disable-avx            disable AVX optimizations
396   --disable-xop            disable XOP optimizations
397   --disable-fma3           disable FMA3 optimizations
398   --disable-fma4           disable FMA4 optimizations
399   --disable-avx2           disable AVX2 optimizations
400   --disable-aesni          disable AESNI optimizations
401   --disable-armv5te        disable armv5te optimizations
402   --disable-armv6          disable armv6 optimizations
403   --disable-armv6t2        disable armv6t2 optimizations
404   --disable-vfp            disable VFP optimizations
405   --disable-neon           disable NEON optimizations
406   --disable-inline-asm     disable use of inline assembly
407   --disable-yasm           disable use of nasm/yasm assembly
408   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
409   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
410   --disable-msa            disable MSA optimizations
411   --disable-mipsfpu        disable floating point MIPS optimizations
412   --disable-mmi            disable Loongson SIMD optimizations
413   --disable-fast-unaligned consider unaligned accesses slow
414
415 Developer options (useful when working on FFmpeg itself):
416   --disable-debug          disable debugging symbols
417   --enable-debug=LEVEL     set the debug level [$debuglevel]
418   --disable-optimizations  disable compiler optimizations
419   --enable-extra-warnings  enable more compiler warnings
420   --disable-stripping      disable stripping of executables and shared libraries
421   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
422                            2 causes a slowdown at runtime.
423   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
424   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
425                            leaks and errors, using the specified valgrind binary.
426                            Cannot be combined with --target-exec
427   --enable-ftrapv          Trap arithmetic overflows
428   --samples=PATH           location of test samples for FATE, if not set use
429                            \$FATE_SAMPLES at make invocation time.
430   --enable-neon-clobber-test check NEON registers for clobbering (should be
431                            used only for debugging purposes)
432   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
433                            should be used only for debugging purposes)
434   --enable-random          randomly enable/disable components
435   --disable-random
436   --enable-random=LIST     randomly enable/disable specific components or
437   --disable-random=LIST    component groups. LIST is a comma-separated list
438                            of NAME[:PROB] entries where NAME is a component
439                            (group) and PROB the probability associated with
440                            NAME (default 0.5).
441   --random-seed=VALUE      seed value for --enable/disable-random
442   --disable-valgrind-backtrace do not print a backtrace under Valgrind
443                            (only applies to --disable-optimizations builds)
444   --enable-osfuzz          Enable building fuzzer tool
445   --libfuzzer=PATH         path to libfuzzer
446   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
447                            in the name) of tests whose result is ignored
448
449 NOTE: Object files are built at the place where configure is launched.
450 EOF
451   exit 0
452 }
453
454 quotes='""'
455 if test -t 1 && which tput >/dev/null 2>&1; then
456     ncolors=$(tput colors)
457     if test -n "$ncolors" && test $ncolors -ge 8; then
458         bold_color=$(tput bold)
459         warn_color=$(tput setaf 3)
460         error_color=$(tput setaf 1)
461         reset_color=$(tput sgr0)
462     fi
463     # 72 used instead of 80 since that's the default of pr
464     ncols=$(tput cols)
465 fi
466 : ${ncols:=72}
467
468 log(){
469     echo "$@" >> $logfile
470 }
471
472 log_file(){
473     log BEGIN $1
474     pr -n -t $1 >> $logfile
475     log END $1
476 }
477
478 warn(){
479     log "WARNING: $*"
480     WARNINGS="${WARNINGS}WARNING: $*\n"
481 }
482
483 die(){
484     log "$@"
485     echo "$error_color$bold_color$@$reset_color"
486     cat <<EOF
487
488 If you think configure made a mistake, make sure you are using the latest
489 version from Git.  If the latest version fails, report the problem to the
490 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
491 EOF
492     if disabled logging; then
493         cat <<EOF
494 Rerun configure with logging enabled (do not use --disable-logging), and
495 include the log this produces with your report.
496 EOF
497     else
498         cat <<EOF
499 Include the log file "$logfile" produced by configure as this will help
500 solve the problem.
501 EOF
502     fi
503     exit 1
504 }
505
506 # Avoid locale weirdness, besides we really just want to translate ASCII.
507 toupper(){
508     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
509 }
510
511 tolower(){
512     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
513 }
514
515 c_escape(){
516     echo "$*" | sed 's/["\\]/\\\0/g'
517 }
518
519 sh_quote(){
520     v=$(echo "$1" | sed "s/'/'\\\\''/g")
521     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
522     echo "$v"
523 }
524
525 cleanws(){
526     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
527 }
528
529 filter(){
530     pat=$1
531     shift
532     for v; do
533         eval "case $v in $pat) printf '%s ' $v ;; esac"
534     done
535 }
536
537 filter_out(){
538     pat=$1
539     shift
540     for v; do
541         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
542     done
543 }
544
545 map(){
546     m=$1
547     shift
548     for v; do eval $m; done
549 }
550
551 add_suffix(){
552     suffix=$1
553     shift
554     for v; do echo ${v}${suffix}; done
555 }
556
557 set_all(){
558     value=$1
559     shift
560     for var in $*; do
561         eval $var=$value
562     done
563 }
564
565 set_weak(){
566     value=$1
567     shift
568     for var; do
569         eval : \${$var:=$value}
570     done
571 }
572
573 sanitize_var_name(){
574     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
575 }
576
577 set_safe(){
578     var=$1
579     shift
580     eval $(sanitize_var_name "$var")='$*'
581 }
582
583 get_safe(){
584     eval echo \$$(sanitize_var_name "$1")
585 }
586
587 pushvar(){
588     for pvar in $*; do
589         eval level=\${${pvar}_level:=0}
590         eval ${pvar}_${level}="\$$pvar"
591         eval ${pvar}_level=$(($level+1))
592     done
593 }
594
595 popvar(){
596     for pvar in $*; do
597         eval level=\${${pvar}_level:-0}
598         test $level = 0 && continue
599         eval level=$(($level-1))
600         eval $pvar="\${${pvar}_${level}}"
601         eval ${pvar}_level=$level
602         eval unset ${pvar}_${level}
603     done
604 }
605
606 request(){
607     for var in $*; do
608         eval ${var}_requested=yes
609         eval $var=
610     done
611 }
612
613 enable(){
614     set_all yes $*
615 }
616
617 disable(){
618     set_all no $*
619 }
620
621 enable_weak(){
622     set_weak yes $*
623 }
624
625 disable_weak(){
626     set_weak no $*
627 }
628
629 enable_safe(){
630     for var; do
631         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
632     done
633 }
634
635 disable_safe(){
636     for var; do
637         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
638     done
639 }
640
641 do_enable_deep(){
642     for var; do
643         enabled $var && continue
644         eval sel="\$${var}_select"
645         eval sgs="\$${var}_suggest"
646         pushvar var sgs
647         enable_deep $sel
648         popvar sgs
649         enable_deep_weak $sgs
650         popvar var
651     done
652 }
653
654 enable_deep(){
655     do_enable_deep $*
656     enable $*
657 }
658
659 enable_deep_weak(){
660     for var; do
661         disabled $var && continue
662         pushvar var
663         do_enable_deep $var
664         popvar var
665         enable_weak $var
666     done
667 }
668
669 requested(){
670     test "${1#!}" = "$1" && op='=' || op=!=
671     eval test "x\$${1#!}_requested" $op "xyes"
672 }
673
674 enabled(){
675     test "${1#!}" = "$1" && op='=' || op=!=
676     eval test "x\$${1#!}" $op "xyes"
677 }
678
679 disabled(){
680     test "${1#!}" = "$1" && op='=' || op=!=
681     eval test "x\$${1#!}" $op "xno"
682 }
683
684 enabled_all(){
685     for opt; do
686         enabled $opt || return 1
687     done
688 }
689
690 disabled_all(){
691     for opt; do
692         disabled $opt || return 1
693     done
694 }
695
696 enabled_any(){
697     for opt; do
698         enabled $opt && return 0
699     done
700 }
701
702 disabled_any(){
703     for opt; do
704         disabled $opt && return 0
705     done
706     return 1
707 }
708
709 set_default(){
710     for opt; do
711         eval : \${$opt:=\$${opt}_default}
712     done
713 }
714
715 is_in(){
716     value=$1
717     shift
718     for var in $*; do
719         [ $var = $value ] && return 0
720     done
721     return 1
722 }
723
724 do_check_deps(){
725     for cfg; do
726         cfg="${cfg#!}"
727         enabled ${cfg}_checking && die "Circular dependency for $cfg."
728         disabled ${cfg}_checking && continue
729         enable ${cfg}_checking
730         append allopts $cfg
731
732         eval dep_all="\$${cfg}_deps"
733         eval dep_any="\$${cfg}_deps_any"
734         eval dep_sel="\$${cfg}_select"
735         eval dep_sgs="\$${cfg}_suggest"
736         eval dep_ifa="\$${cfg}_if"
737         eval dep_ifn="\$${cfg}_if_any"
738
739         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
740         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
741         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
742
743         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
744         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
745         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
746         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
747         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
748
749         if enabled $cfg; then
750             enable_deep $dep_sel
751             enable_deep_weak $dep_sgs
752         fi
753
754         disable ${cfg}_checking
755     done
756 }
757
758 check_deps(){
759     unset allopts
760
761     do_check_deps "$@"
762
763     for cfg in $allopts; do
764         enabled $cfg || continue
765         eval dep_extralibs="\$${cfg}_extralibs"
766         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
767     done
768 }
769
770 print_config(){
771     pfx=$1
772     files=$2
773     shift 2
774     map 'eval echo "$v \${$v:-no}"' "$@" |
775     awk "BEGIN { split(\"$files\", files) }
776         {
777             c = \"$pfx\" toupper(\$1);
778             v = \$2;
779             sub(/yes/, 1, v);
780             sub(/no/,  0, v);
781             for (f in files) {
782                 file = files[f];
783                 if (file ~ /\\.h\$/) {
784                     printf(\"#define %s %d\\n\", c, v) >>file;
785                 } else if (file ~ /\\.asm\$/) {
786                     printf(\"%%define %s %d\\n\", c, v) >>file;
787                 } else if (file ~ /\\.mak\$/) {
788                     n = -v ? \"\" : \"!\";
789                     printf(\"%s%s=yes\\n\", n, c) >>file;
790                 } else if (file ~ /\\.texi\$/) {
791                     pre = -v ? \"\" : \"@c \";
792                     yesno = \$2;
793                     c2 = tolower(c);
794                     gsub(/_/, \"-\", c2);
795                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
796                 }
797             }
798         }"
799 }
800
801 print_enabled(){
802     suf=$1
803     shift
804     for v; do
805         enabled $v && printf "%s\n" ${v%$suf}
806     done
807 }
808
809 append(){
810     var=$1
811     shift
812     eval "$var=\"\$$var $*\""
813 }
814
815 prepend(){
816     var=$1
817     shift
818     eval "$var=\"$* \$$var\""
819 }
820
821 unique(){
822     var=$1
823     uniq_list=""
824     for tok in $(eval echo \$$var); do
825         uniq_list="$(filter_out $tok $uniq_list) $tok"
826     done
827     eval "$var=\"${uniq_list}\""
828 }
829
830 add_cppflags(){
831     append CPPFLAGS "$@"
832 }
833
834 add_cflags(){
835     append CFLAGS $($cflags_filter "$@")
836 }
837
838 add_cflags_headers(){
839     append CFLAGS_HEADERS $($cflags_filter "$@")
840 }
841
842 add_cxxflags(){
843     append CXXFLAGS $($cflags_filter "$@")
844 }
845
846 add_asflags(){
847     append ASFLAGS $($asflags_filter "$@")
848 }
849
850 add_objcflags(){
851     append OBJCFLAGS $($objcflags_filter "$@")
852 }
853
854 add_ldflags(){
855     append LDFLAGS $($ldflags_filter "$@")
856 }
857
858 add_ldexeflags(){
859     append LDEXEFLAGS $($ldflags_filter "$@")
860 }
861
862 add_ldlibflags(){
863     append LDLIBFLAGS $($ldflags_filter "$@")
864 }
865
866 add_stripflags(){
867     append ASMSTRIPFLAGS "$@"
868 }
869
870 add_extralibs(){
871     prepend extralibs $($ldflags_filter "$@")
872 }
873
874 add_host_cppflags(){
875     append host_cppflags "$@"
876 }
877
878 add_host_cflags(){
879     append host_cflags $($host_cflags_filter "$@")
880 }
881
882 add_host_ldflags(){
883     append host_ldflags $($host_ldflags_filter "$@")
884 }
885
886 add_compat(){
887     append compat_objs $1
888     shift
889     map 'add_cppflags -D$v' "$@"
890 }
891
892 check_cmd(){
893     log "$@"
894     "$@" >> $logfile 2>&1
895 }
896
897 check_stat(){
898     log check_stat "$@"
899     stat "$1" >> $logfile 2>&1
900 }
901
902 cc_o(){
903     eval printf '%s\\n' $CC_O
904 }
905
906 cc_e(){
907     eval printf '%s\\n' $CC_E
908 }
909
910 check_cc(){
911     log check_cc "$@"
912     cat > $TMPC
913     log_file $TMPC
914     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
915 }
916
917 check_cxx(){
918     log check_cxx "$@"
919     cat > $TMPCPP
920     log_file $TMPCPP
921     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
922 }
923
924 check_objcc(){
925     log check_objcc "$@"
926     cat > $TMPM
927     log_file $TMPM
928     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
929 }
930
931 check_cpp(){
932     log check_cpp "$@"
933     cat > $TMPC
934     log_file $TMPC
935     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
936 }
937
938 as_o(){
939     eval printf '%s\\n' $AS_O
940 }
941
942 check_as(){
943     log check_as "$@"
944     cat > $TMPS
945     log_file $TMPS
946     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
947 }
948
949 check_inline_asm(){
950     log check_inline_asm "$@"
951     name="$1"
952     code="$2"
953     shift 2
954     disable $name
955     check_cc "$@" <<EOF && enable $name
956 void foo(void){ __asm__ volatile($code); }
957 EOF
958 }
959
960 check_inline_asm_flags(){
961     log check_inline_asm_flags "$@"
962     name="$1"
963     code="$2"
964     flags=''
965     shift 2
966     while [ "$1" != "" ]; do
967       append flags $1
968       shift
969     done;
970     disable $name
971     cat > $TMPC <<EOF
972 void foo(void){ __asm__ volatile($code); }
973 EOF
974     log_file $TMPC
975     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
976     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
977 }
978
979 check_insn(){
980     log check_insn "$@"
981     check_inline_asm ${1}_inline "\"$2\""
982     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
983 }
984
985 check_yasm(){
986     log check_yasm "$@"
987     echo "$1" > $TMPS
988     log_file $TMPS
989     shift 1
990     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
991 }
992
993 ld_o(){
994     eval printf '%s\\n' $LD_O
995 }
996
997 check_ld(){
998     log check_ld "$@"
999     type=$1
1000     shift 1
1001     flags=$(filter_out '-l*|*.so' $@)
1002     libs=$(filter '-l*|*.so' $@)
1003     check_$type $($cflags_filter $flags) || return
1004     flags=$($ldflags_filter $flags)
1005     libs=$($ldflags_filter $libs)
1006     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1007 }
1008
1009 print_include(){
1010     hdr=$1
1011     test "${hdr%.h}" = "${hdr}" &&
1012         echo "#include $hdr"    ||
1013         echo "#include <$hdr>"
1014 }
1015
1016 check_code(){
1017     log check_code "$@"
1018     check=$1
1019     headers=$2
1020     code=$3
1021     shift 3
1022     {
1023         for hdr in $headers; do
1024             print_include $hdr
1025         done
1026         echo "int main(void) { $code; return 0; }"
1027     } | check_$check "$@"
1028 }
1029
1030 check_cppflags(){
1031     log check_cppflags "$@"
1032     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1033 int x;
1034 EOF
1035 }
1036
1037 test_cflags(){
1038     log test_cflags "$@"
1039     set -- $($cflags_filter "$@")
1040     check_cc "$@" <<EOF
1041 int x;
1042 EOF
1043 }
1044
1045 check_cflags(){
1046     log check_cflags "$@"
1047     test_cflags "$@" && add_cflags "$@"
1048 }
1049
1050 check_cxxflags(){
1051     log check_cxxflags "$@"
1052     set -- $($cflags_filter "$@")
1053     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1054 int x;
1055 EOF
1056 }
1057
1058 test_objcflags(){
1059     log test_objcflags "$@"
1060     set -- $($objcflags_filter "$@")
1061     check_objcc "$@" <<EOF
1062 int x;
1063 EOF
1064 }
1065
1066 check_objcflags(){
1067     log check_objcflags "$@"
1068     test_objcflags "$@" && add_objcflags "$@"
1069 }
1070
1071 test_ldflags(){
1072     log test_ldflags "$@"
1073     check_ld "cc" "$@" <<EOF
1074 int main(void){ return 0; }
1075 EOF
1076 }
1077
1078 check_ldflags(){
1079     log check_ldflags "$@"
1080     test_ldflags "$@" && add_ldflags "$@"
1081 }
1082
1083 test_stripflags(){
1084     log test_stripflags "$@"
1085     # call check_cc to get a fresh TMPO
1086     check_cc <<EOF
1087 int main(void) { return 0; }
1088 EOF
1089     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1090 }
1091
1092 check_stripflags(){
1093     log check_stripflags "$@"
1094     test_stripflags "$@" && add_stripflags "$@"
1095 }
1096
1097 check_header(){
1098     log check_header "$@"
1099     header=$1
1100     shift
1101     disable_safe $header
1102     check_cpp "$@" <<EOF && enable_safe $header
1103 #include <$header>
1104 int x;
1105 EOF
1106 }
1107
1108 check_header_objcc(){
1109     log check_header_objcc "$@"
1110     rm -f -- "$TMPO"
1111     header=$1
1112     shift
1113     disable_safe $header
1114     {
1115        echo "#include <$header>"
1116        echo "int main(void) { return 0; }"
1117     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1118 }
1119
1120 check_func(){
1121     log check_func "$@"
1122     func=$1
1123     shift
1124     disable $func
1125     check_ld "cc" "$@" <<EOF && enable $func
1126 extern int $func();
1127 int main(void){ $func(); }
1128 EOF
1129 }
1130
1131 check_complexfunc(){
1132     log check_complexfunc "$@"
1133     func=$1
1134     narg=$2
1135     shift 2
1136     test $narg = 2 && args="f, g" || args="f * I"
1137     disable $func
1138     check_ld "cc" "$@" <<EOF && enable $func
1139 #include <complex.h>
1140 #include <math.h>
1141 float foo(complex float f, complex float g) { return $func($args); }
1142 int main(void){ return (int) foo; }
1143 EOF
1144 }
1145
1146 check_mathfunc(){
1147     log check_mathfunc "$@"
1148     func=$1
1149     narg=$2
1150     shift 2
1151     test $narg = 2 && args="f, g" || args="f"
1152     disable $func
1153     check_ld "cc" "$@" <<EOF && enable $func
1154 #include <math.h>
1155 float foo(float f, float g) { return $func($args); }
1156 int main(void){ return (int) foo; }
1157 EOF
1158 }
1159
1160 check_func_headers(){
1161     log check_func_headers "$@"
1162     headers=$1
1163     funcs=$2
1164     shift 2
1165     {
1166         for hdr in $headers; do
1167             print_include $hdr
1168         done
1169         echo "#include <stdint.h>"
1170         for func in $funcs; do
1171             echo "long check_$func(void) { return (long) $func; }"
1172         done
1173         echo "int main(void) { int ret = 0;"
1174         # LTO could optimize out the test functions without this
1175         for func in $funcs; do
1176             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1177         done
1178         echo "return ret; }"
1179     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1180 }
1181
1182 check_class_headers_cpp(){
1183     log check_class_headers_cpp "$@"
1184     headers=$1
1185     classes=$2
1186     shift 2
1187     {
1188         for hdr in $headers; do
1189             echo "#include <$hdr>"
1190         done
1191         echo "int main(void) { "
1192         i=1
1193         for class in $classes; do
1194             echo "$class obj$i;"
1195             i=$(expr $i + 1)
1196         done
1197         echo "return 0; }"
1198     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1199 }
1200
1201 check_cpp_condition(){
1202     log check_cpp_condition "$@"
1203     header=$1
1204     condition=$2
1205     shift 2
1206     check_cpp "$@" <<EOF
1207 #include <$header>
1208 #if !($condition)
1209 #error "unsatisfied condition: $condition"
1210 #endif
1211 EOF
1212 }
1213
1214 test_cflags_cc(){
1215     log test_cflags_cc "$@"
1216     flags=$1
1217     header=$2
1218     condition=$3
1219     shift 3
1220     set -- $($cflags_filter "$flags")
1221     check_cc "$@" <<EOF
1222 #include <$header>
1223 #if !($condition)
1224 #error "unsatisfied condition: $condition"
1225 #endif
1226 EOF
1227 }
1228
1229 check_lib(){
1230     log check_lib "$@"
1231     name="$1"
1232     headers="$2"
1233     funcs="$3"
1234     shift 3
1235     disable $name
1236     check_func_headers "$headers" "$funcs" "$@" &&
1237         enable $name && add_extralibs "$@"
1238 }
1239
1240 check_lib_cpp(){
1241     log check_lib_cpp "$@"
1242     headers="$1"
1243     classes="$2"
1244     shift 2
1245     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1246 }
1247
1248 check_pkg_config(){
1249     log check_pkg_config "$@"
1250     pkg_version="$1"
1251     pkg="${1%% *}"
1252     headers="$2"
1253     funcs="$3"
1254     shift 3
1255     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1256     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1257     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1258     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1259         set_safe "${pkg}_cflags"    $pkg_cflags &&
1260         set_safe "${pkg}_extralibs" $pkg_libs
1261 }
1262
1263 check_exec(){
1264     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1265 }
1266
1267 check_exec_crash(){
1268     log check_exec_crash "$@"
1269     code=$(cat)
1270
1271     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1272     # are safe but may not be available everywhere.  Thus we use
1273     # raise(SIGTERM) instead.  The check is run in a subshell so we
1274     # can redirect the "Terminated" message from the shell.  SIGBUS
1275     # is not defined by standard C so it is used conditionally.
1276
1277     (check_exec "$@") >> $logfile 2>&1 <<EOF
1278 #include <signal.h>
1279 static void sighandler(int sig){
1280     raise(SIGTERM);
1281 }
1282 int foo(void){
1283     $code
1284 }
1285 int (*func_ptr)(void) = foo;
1286 int main(void){
1287     signal(SIGILL, sighandler);
1288     signal(SIGFPE, sighandler);
1289     signal(SIGSEGV, sighandler);
1290 #ifdef SIGBUS
1291     signal(SIGBUS, sighandler);
1292 #endif
1293     return func_ptr();
1294 }
1295 EOF
1296 }
1297
1298 check_type(){
1299     log check_type "$@"
1300     headers=$1
1301     type=$2
1302     shift 2
1303     disable_safe "$type"
1304     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1305 }
1306
1307 check_struct(){
1308     log check_struct "$@"
1309     headers=$1
1310     struct=$2
1311     member=$3
1312     shift 3
1313     disable_safe "${struct}_${member}"
1314     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1315         enable_safe "${struct}_${member}"
1316 }
1317
1318 check_builtin(){
1319     log check_builtin "$@"
1320     name=$1
1321     headers=$2
1322     builtin=$3
1323     shift 3
1324     disable "$name"
1325     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1326 }
1327
1328 check_compile_assert(){
1329     log check_compile_assert "$@"
1330     name=$1
1331     headers=$2
1332     condition=$3
1333     shift 3
1334     disable "$name"
1335     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1336 }
1337
1338 require(){
1339     log require "$@"
1340     name_version="$1"
1341     name="${1%% *}"
1342     headers="$2"
1343     func="$3"
1344     shift 3
1345     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1346 }
1347
1348 require_cpp(){
1349     name="$1"
1350     headers="$2"
1351     classes="$3"
1352     shift 3
1353     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1354 }
1355
1356 use_pkg_config(){
1357     log use_pkg_config "$@"
1358     pkg="$1"
1359     check_pkg_config "$@" || return 1
1360     add_cflags    $(get_safe "${pkg}_cflags")
1361     add_extralibs $(get_safe "${pkg}_extralibs")
1362 }
1363
1364 require_pkg_config(){
1365     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1366 }
1367
1368 hostcc_e(){
1369     eval printf '%s\\n' $HOSTCC_E
1370 }
1371
1372 hostcc_o(){
1373     eval printf '%s\\n' $HOSTCC_O
1374 }
1375
1376 check_host_cc(){
1377     log check_host_cc "$@"
1378     cat > $TMPC
1379     log_file $TMPC
1380     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1381 }
1382
1383 check_host_cpp(){
1384     log check_host_cpp "$@"
1385     cat > $TMPC
1386     log_file $TMPC
1387     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1388 }
1389
1390 check_host_cppflags(){
1391     log check_host_cppflags "$@"
1392     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1393 int x;
1394 EOF
1395 }
1396
1397 check_host_cflags(){
1398     log check_host_cflags "$@"
1399     set -- $($host_cflags_filter "$@")
1400     check_host_cc "$@" <<EOF && append host_cflags "$@"
1401 int x;
1402 EOF
1403 }
1404
1405 check_host_cpp_condition(){
1406     log check_host_cpp_condition "$@"
1407     header=$1
1408     condition=$2
1409     shift 2
1410     check_host_cpp "$@" <<EOF
1411 #include <$header>
1412 #if !($condition)
1413 #error "unsatisfied condition: $condition"
1414 #endif
1415 EOF
1416 }
1417
1418 cp_if_changed(){
1419     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1420     mkdir -p "$(dirname $2)"
1421     cp -f "$1" "$2"
1422 }
1423
1424 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1425 # system-dependent things.
1426
1427 AVCODEC_COMPONENTS="
1428     bsfs
1429     decoders
1430     encoders
1431     hwaccels
1432     parsers
1433 "
1434
1435 AVDEVICE_COMPONENTS="
1436     indevs
1437     outdevs
1438 "
1439 AVFILTER_COMPONENTS="
1440     filters
1441 "
1442 AVFORMAT_COMPONENTS="
1443     demuxers
1444     muxers
1445     protocols
1446 "
1447
1448 AVRESAMPLE_COMPONENTS=""
1449 AVUTIL_COMPONENTS=""
1450
1451 COMPONENT_LIST="
1452     $AVCODEC_COMPONENTS
1453     $AVDEVICE_COMPONENTS
1454     $AVFILTER_COMPONENTS
1455     $AVFORMAT_COMPONENTS
1456     $AVRESAMPLE_COMPONENTS
1457     $AVUTIL_COMPONENTS
1458 "
1459
1460 EXAMPLE_LIST="
1461     avio_dir_cmd_example
1462     avio_reading_example
1463     decode_audio_example
1464     decode_video_example
1465     demuxing_decoding_example
1466     encode_audio_example
1467     encode_video_example
1468     extract_mvs_example
1469     filter_audio_example
1470     filtering_audio_example
1471     filtering_video_example
1472     http_multiclient_example
1473     metadata_example
1474     muxing_example
1475     qsvdec_example
1476     remuxing_example
1477     resampling_audio_example
1478     scaling_video_example
1479     transcode_aac_example
1480     transcoding_example
1481 "
1482 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1483     bzlib
1484     iconv
1485     libxcb
1486     libxcb_shm
1487     libxcb_shape
1488     libxcb_xfixes
1489     lzma
1490     schannel
1491     sdl
1492     sdl2
1493     securetransport
1494     xlib
1495     zlib
1496 "
1497
1498 EXTERNAL_LIBRARY_GPL_LIST="
1499     avisynth
1500     frei0r
1501     libcdio
1502     librubberband
1503     libvidstab
1504     libx264
1505     libx265
1506     libxavs
1507     libxvid
1508 "
1509
1510 EXTERNAL_LIBRARY_NONFREE_LIST="
1511     decklink
1512     libfdk_aac
1513     openssl
1514 "
1515
1516 EXTERNAL_LIBRARY_VERSION3_LIST="
1517     gmp
1518     libopencore_amrnb
1519     libopencore_amrwb
1520     libvo_amrwbenc
1521 "
1522
1523 EXTERNAL_LIBRARY_GPLV3_LIST="
1524     libsmbclient
1525 "
1526
1527 EXTERNAL_LIBRARY_LIST="
1528     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1529     $EXTERNAL_LIBRARY_GPL_LIST
1530     $EXTERNAL_LIBRARY_NONFREE_LIST
1531     $EXTERNAL_LIBRARY_VERSION3_LIST
1532     $EXTERNAL_LIBRARY_GPLV3_LIST
1533     chromaprint
1534     crystalhd
1535     gcrypt
1536     gnutls
1537     jni
1538     ladspa
1539     libass
1540     libbluray
1541     libbs2b
1542     libcaca
1543     libcelt
1544     libdc1394
1545     libflite
1546     libfontconfig
1547     libfreetype
1548     libfribidi
1549     libgme
1550     libgsm
1551     libiec61883
1552     libilbc
1553     libkvazaar
1554     libmodplug
1555     libmp3lame
1556     libnut
1557     libopencv
1558     libopenh264
1559     libopenjpeg
1560     libopenmpt
1561     libopus
1562     libpulse
1563     librsvg
1564     librtmp
1565     libschroedinger
1566     libshine
1567     libsmbclient
1568     libsnappy
1569     libsoxr
1570     libspeex
1571     libssh
1572     libtesseract
1573     libtheora
1574     libtwolame
1575     libv4l2
1576     libvorbis
1577     libvpx
1578     libwavpack
1579     libwebp
1580     libzimg
1581     libzmq
1582     libzvbi
1583     mediacodec
1584     netcdf
1585     openal
1586     opencl
1587     opengl
1588     videotoolbox
1589 "
1590 HWACCEL_AUTODETECT_LIBRARY_LIST="
1591     audiotoolbox
1592     cuda
1593     cuvid
1594     d3d11va
1595     dxva2
1596     nvenc
1597     vaapi
1598     vda
1599     vdpau
1600     videotoolbox_hwaccel
1601     xvmc
1602 "
1603
1604 HWACCEL_LIBRARY_NONFREE_LIST="
1605     cuda_sdk
1606     libnpp
1607 "
1608
1609 HWACCEL_LIBRARY_LIST="
1610     $HWACCEL_AUTODETECT_LIBRARY_LIST
1611     $HWACCEL_LIBRARY_NONFREE_LIST
1612     libmfx
1613     mmal
1614     omx
1615 "
1616
1617 DOCUMENT_LIST="
1618     doc
1619     htmlpages
1620     manpages
1621     podpages
1622     txtpages
1623 "
1624
1625 FEATURE_LIST="
1626     ftrapv
1627     gray
1628     hardcoded_tables
1629     omx_rpi
1630     runtime_cpudetect
1631     safe_bitstream_reader
1632     shared
1633     small
1634     static
1635     swscale_alpha
1636 "
1637
1638 LIBRARY_LIST="
1639     avcodec
1640     avdevice
1641     avfilter
1642     avformat
1643     avresample
1644     avutil
1645     postproc
1646     swresample
1647     swscale
1648 "
1649
1650 LICENSE_LIST="
1651     gpl
1652     nonfree
1653     version3
1654 "
1655
1656 PROGRAM_LIST="
1657     ffplay
1658     ffprobe
1659     ffserver
1660     ffmpeg
1661 "
1662
1663 SUBSYSTEM_LIST="
1664     dct
1665     dwt
1666     error_resilience
1667     faan
1668     fast_unaligned
1669     fft
1670     lsp
1671     lzo
1672     mdct
1673     pixelutils
1674     network
1675     rdft
1676 "
1677
1678 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1679 CONFIG_LIST="
1680     $DOCUMENT_LIST
1681     $EXAMPLE_LIST
1682     $EXTERNAL_LIBRARY_LIST
1683     $HWACCEL_LIBRARY_LIST
1684     $FEATURE_LIST
1685     $LICENSE_LIST
1686     $LIBRARY_LIST
1687     $PROGRAM_LIST
1688     $SUBSYSTEM_LIST
1689     fontconfig
1690     memory_poisoning
1691     neon_clobber_test
1692     ossfuzz
1693     pic
1694     thumb
1695     valgrind_backtrace
1696     xmm_clobber_test
1697     $COMPONENT_LIST
1698 "
1699
1700 THREADS_LIST="
1701     pthreads
1702     os2threads
1703     w32threads
1704 "
1705
1706 ATOMICS_LIST="
1707     atomics_gcc
1708     atomics_suncc
1709     atomics_win32
1710 "
1711
1712 AUTODETECT_LIBS="
1713     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1714     $HWACCEL_AUTODETECT_LIBRARY_LIST
1715     $THREADS_LIST
1716 "
1717
1718 ARCH_LIST="
1719     aarch64
1720     alpha
1721     arm
1722     avr32
1723     avr32_ap
1724     avr32_uc
1725     bfin
1726     ia64
1727     m68k
1728     mips
1729     mips64
1730     parisc
1731     ppc
1732     ppc64
1733     s390
1734     sh4
1735     sparc
1736     sparc64
1737     tilegx
1738     tilepro
1739     tomi
1740     x86
1741     x86_32
1742     x86_64
1743 "
1744
1745 ARCH_EXT_LIST_ARM="
1746     armv5te
1747     armv6
1748     armv6t2
1749     armv8
1750     neon
1751     vfp
1752     vfpv3
1753     setend
1754 "
1755
1756 ARCH_EXT_LIST_MIPS="
1757     mipsfpu
1758     mips32r2
1759     mips32r5
1760     mips64r2
1761     mips32r6
1762     mips64r6
1763     mipsdsp
1764     mipsdspr2
1765     msa
1766 "
1767
1768 ARCH_EXT_LIST_LOONGSON="
1769     loongson2
1770     loongson3
1771     mmi
1772 "
1773
1774 ARCH_EXT_LIST_X86_SIMD="
1775     aesni
1776     amd3dnow
1777     amd3dnowext
1778     avx
1779     avx2
1780     fma3
1781     fma4
1782     mmx
1783     mmxext
1784     sse
1785     sse2
1786     sse3
1787     sse4
1788     sse42
1789     ssse3
1790     xop
1791 "
1792
1793 ARCH_EXT_LIST_PPC="
1794     altivec
1795     dcbzl
1796     ldbrx
1797     power8
1798     ppc4xx
1799     vsx
1800 "
1801
1802 ARCH_EXT_LIST_X86="
1803     $ARCH_EXT_LIST_X86_SIMD
1804     cpunop
1805     i686
1806 "
1807
1808 ARCH_EXT_LIST="
1809     $ARCH_EXT_LIST_ARM
1810     $ARCH_EXT_LIST_PPC
1811     $ARCH_EXT_LIST_X86
1812     $ARCH_EXT_LIST_MIPS
1813     $ARCH_EXT_LIST_LOONGSON
1814 "
1815
1816 ARCH_FEATURES="
1817     aligned_stack
1818     fast_64bit
1819     fast_clz
1820     fast_cmov
1821     local_aligned_8
1822     local_aligned_16
1823     local_aligned_32
1824     simd_align_16
1825     simd_align_32
1826 "
1827
1828 BUILTIN_LIST="
1829     atomic_cas_ptr
1830     machine_rw_barrier
1831     MemoryBarrier
1832     mm_empty
1833     rdtsc
1834     sarestart
1835     sem_timedwait
1836     sync_val_compare_and_swap
1837 "
1838 HAVE_LIST_CMDLINE="
1839     inline_asm
1840     symver
1841     yasm
1842 "
1843
1844 HAVE_LIST_PUB="
1845     bigendian
1846     fast_unaligned
1847 "
1848
1849 HEADERS_LIST="
1850     alsa_asoundlib_h
1851     altivec_h
1852     arpa_inet_h
1853     asm_types_h
1854     cdio_paranoia_h
1855     cdio_paranoia_paranoia_h
1856     cuda_h
1857     d3d11_h
1858     dispatch_dispatch_h
1859     dev_bktr_ioctl_bt848_h
1860     dev_bktr_ioctl_meteor_h
1861     dev_ic_bt8xx_h
1862     dev_video_bktr_ioctl_bt848_h
1863     dev_video_meteor_ioctl_meteor_h
1864     direct_h
1865     dirent_h
1866     dlfcn_h
1867     dxva_h
1868     ES2_gl_h
1869     gsm_h
1870     io_h
1871     mach_mach_time_h
1872     machine_ioctl_bt848_h
1873     machine_ioctl_meteor_h
1874     malloc_h
1875     opencv2_core_core_c_h
1876     openjpeg_2_1_openjpeg_h
1877     openjpeg_2_0_openjpeg_h
1878     openjpeg_1_5_openjpeg_h
1879     OpenGL_gl3_h
1880     poll_h
1881     sndio_h
1882     soundcard_h
1883     stdatomic_h
1884     sys_mman_h
1885     sys_param_h
1886     sys_resource_h
1887     sys_select_h
1888     sys_soundcard_h
1889     sys_time_h
1890     sys_un_h
1891     sys_videoio_h
1892     termios_h
1893     udplite_h
1894     unistd_h
1895     valgrind_valgrind_h
1896     windows_h
1897     winsock2_h
1898 "
1899
1900 INTRINSICS_LIST="
1901     intrinsics_neon
1902 "
1903
1904 COMPLEX_FUNCS="
1905     cabs
1906     cexp
1907 "
1908
1909 MATH_FUNCS="
1910     atanf
1911     atan2f
1912     cbrt
1913     cbrtf
1914     copysign
1915     cosf
1916     erf
1917     exp2
1918     exp2f
1919     expf
1920     hypot
1921     isfinite
1922     isinf
1923     isnan
1924     ldexpf
1925     llrint
1926     llrintf
1927     log2
1928     log2f
1929     log10f
1930     lrint
1931     lrintf
1932     powf
1933     rint
1934     round
1935     roundf
1936     sinf
1937     trunc
1938     truncf
1939 "
1940
1941 SYSTEM_FUNCS="
1942     access
1943     aligned_malloc
1944     arc4random
1945     clock_gettime
1946     closesocket
1947     CommandLineToArgvW
1948     CoTaskMemFree
1949     CryptGenRandom
1950     dlopen
1951     fcntl
1952     flt_lim
1953     fork
1954     getaddrinfo
1955     gethrtime
1956     getopt
1957     GetProcessAffinityMask
1958     GetProcessMemoryInfo
1959     GetProcessTimes
1960     getrusage
1961     GetSystemTimeAsFileTime
1962     gettimeofday
1963     glob
1964     glXGetProcAddress
1965     gmtime_r
1966     inet_aton
1967     isatty
1968     jack_port_get_latency_range
1969     kbhit
1970     LoadLibrary
1971     localtime_r
1972     lstat
1973     lzo1x_999_compress
1974     mach_absolute_time
1975     MapViewOfFile
1976     memalign
1977     mkstemp
1978     mmap
1979     mprotect
1980     nanosleep
1981     PeekNamedPipe
1982     posix_memalign
1983     pthread_cancel
1984     sched_getaffinity
1985     SetConsoleTextAttribute
1986     SetConsoleCtrlHandler
1987     setmode
1988     setrlimit
1989     Sleep
1990     strerror_r
1991     sysconf
1992     sysctl
1993     usleep
1994     UTGetOSTypeFromString
1995     VirtualAlloc
1996     wglGetProcAddress
1997 "
1998
1999 TOOLCHAIN_FEATURES="
2000     as_dn_directive
2001     as_fpu_directive
2002     as_func
2003     as_object_arch
2004     asm_mod_q
2005     attribute_may_alias
2006     attribute_packed
2007     blocks_extension
2008     ebp_available
2009     ebx_available
2010     gnu_as
2011     gnu_windres
2012     ibm_asm
2013     inline_asm_direct_symbol_refs
2014     inline_asm_labels
2015     inline_asm_nonlocal_labels
2016     pragma_deprecated
2017     rsync_contimeout
2018     symver_asm_label
2019     symver_gnu_asm
2020     vfp_args
2021     xform_asm
2022     xmm_clobbers
2023 "
2024
2025 TYPES_LIST="
2026     CONDITION_VARIABLE_Ptr
2027     socklen_t
2028     struct_addrinfo
2029     struct_group_source_req
2030     struct_ip_mreq_source
2031     struct_ipv6_mreq
2032     struct_msghdr_msg_flags
2033     struct_pollfd
2034     struct_rusage_ru_maxrss
2035     struct_sctp_event_subscribe
2036     struct_sockaddr_in6
2037     struct_sockaddr_sa_len
2038     struct_sockaddr_storage
2039     struct_stat_st_mtim_tv_nsec
2040     struct_v4l2_frmivalenum_discrete
2041 "
2042
2043 HAVE_LIST="
2044     $ARCH_EXT_LIST
2045     $(add_suffix _external $ARCH_EXT_LIST)
2046     $(add_suffix _inline   $ARCH_EXT_LIST)
2047     $ARCH_FEATURES
2048     $ATOMICS_LIST
2049     $BUILTIN_LIST
2050     $COMPLEX_FUNCS
2051     $HAVE_LIST_CMDLINE
2052     $HAVE_LIST_PUB
2053     $HEADERS_LIST
2054     $INTRINSICS_LIST
2055     $MATH_FUNCS
2056     $SYSTEM_FUNCS
2057     $THREADS_LIST
2058     $TOOLCHAIN_FEATURES
2059     $TYPES_LIST
2060     alsa
2061     atomics_native
2062     dos_paths
2063     dxva2_lib
2064     dxva2api_cobj
2065     jack
2066     libc_msvcrt
2067     makeinfo
2068     makeinfo_html
2069     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2070     perl
2071     pod2man
2072     sdl2
2073     section_data_rel_ro
2074     sndio
2075     texi2html
2076     threads
2077     vaapi_drm
2078     vaapi_x11
2079     vdpau_x11
2080     winrt
2081 "
2082
2083 # options emitted with CONFIG_ prefix but not available on the command line
2084 CONFIG_EXTRA="
2085     aandcttables
2086     ac3dsp
2087     audio_frame_queue
2088     audiodsp
2089     blockdsp
2090     bswapdsp
2091     cabac
2092     dirac_parse
2093     dvprofile
2094     exif
2095     faandct
2096     faanidct
2097     fdctdsp
2098     flacdsp
2099     fmtconvert
2100     frame_thread_encoder
2101     g722dsp
2102     golomb
2103     gplv3
2104     h263dsp
2105     h264chroma
2106     h264dsp
2107     h264parse
2108     h264pred
2109     h264qpel
2110     hevcparse
2111     hpeldsp
2112     huffman
2113     huffyuvdsp
2114     huffyuvencdsp
2115     idctdsp
2116     iirfilter
2117     mdct15
2118     intrax8
2119     iso_media
2120     ividsp
2121     jpegtables
2122     lgplv3
2123     libx262
2124     llauddsp
2125     llviddsp
2126     llvidencdsp
2127     lpc
2128     lzf
2129     me_cmp
2130     mpeg_er
2131     mpegaudio
2132     mpegaudiodsp
2133     mpegaudioheader
2134     mpegvideo
2135     mpegvideoenc
2136     mss34dsp
2137     pixblockdsp
2138     qpeldsp
2139     qsv
2140     qsvdec
2141     qsvenc
2142     rangecoder
2143     riffdec
2144     riffenc
2145     rtpdec
2146     rtpenc_chain
2147     rv34dsp
2148     sinewin
2149     snappy
2150     srtp
2151     startcode
2152     texturedsp
2153     texturedspenc
2154     tpeldsp
2155     vaapi_encode
2156     vc1dsp
2157     videodsp
2158     vp3dsp
2159     vp56dsp
2160     vp8dsp
2161     vt_bt2020
2162     wma_freqs
2163     wmv2dsp
2164 "
2165
2166 CMDLINE_SELECT="
2167     $ARCH_EXT_LIST
2168     $CONFIG_LIST
2169     $HAVE_LIST_CMDLINE
2170     $THREADS_LIST
2171     asm
2172     cross_compile
2173     debug
2174     extra_warnings
2175     logging
2176     lto
2177     optimizations
2178     rpath
2179     stripping
2180 "
2181
2182 PATHS_LIST="
2183     bindir
2184     datadir
2185     docdir
2186     incdir
2187     libdir
2188     mandir
2189     pkgconfigdir
2190     prefix
2191     shlibdir
2192     install_name_dir
2193 "
2194
2195 CMDLINE_SET="
2196     $PATHS_LIST
2197     ar
2198     arch
2199     as
2200     assert_level
2201     build_suffix
2202     cc
2203     objcc
2204     cpu
2205     cross_prefix
2206     custom_allocator
2207     cxx
2208     dep_cc
2209     doxygen
2210     env
2211     extra_version
2212     gas
2213     host_cc
2214     host_cflags
2215     host_extralibs
2216     host_ld
2217     host_ldflags
2218     host_os
2219     ignore_tests
2220     install
2221     ld
2222     ln_s
2223     logfile
2224     malloc_prefix
2225     nm
2226     optflags
2227     nvccflags
2228     pkg_config
2229     pkg_config_flags
2230     progs_suffix
2231     random_seed
2232     ranlib
2233     samples
2234     strip
2235     sws_max_filter_size
2236     sysinclude
2237     sysroot
2238     target_exec
2239     target_os
2240     target_path
2241     target_samples
2242     tempprefix
2243     toolchain
2244     valgrind
2245     yasmexe
2246 "
2247
2248 CMDLINE_APPEND="
2249     extra_cflags
2250     extra_cxxflags
2251     extra_objcflags
2252     host_cppflags
2253 "
2254
2255 # code dependency declarations
2256
2257 # architecture extensions
2258
2259 armv5te_deps="arm"
2260 armv6_deps="arm"
2261 armv6t2_deps="arm"
2262 armv8_deps="aarch64"
2263 neon_deps_any="aarch64 arm"
2264 intrinsics_neon_deps="neon"
2265 vfp_deps_any="aarch64 arm"
2266 vfpv3_deps="vfp"
2267 setend_deps="arm"
2268
2269 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2270
2271 loongson2_deps="mips"
2272 loongson3_deps="mips"
2273 mipsfpu_deps="mips"
2274 mipsdsp_deps="mips"
2275 mipsdspr2_deps="mips"
2276 mips32r2_deps="mips"
2277 mips32r5_deps="mips"
2278 mips32r6_deps="mips"
2279 mips64r2_deps="mips"
2280 mips64r6_deps="mips"
2281 msa_deps="mipsfpu"
2282 mmi_deps="mips"
2283
2284 altivec_deps="ppc"
2285 dcbzl_deps="ppc"
2286 ldbrx_deps="ppc"
2287 ppc4xx_deps="ppc"
2288 vsx_deps="altivec"
2289 power8_deps="vsx"
2290
2291 cpunop_deps="i686"
2292 x86_64_select="i686"
2293 x86_64_suggest="fast_cmov"
2294
2295 amd3dnow_deps="mmx"
2296 amd3dnowext_deps="amd3dnow"
2297 i686_deps="x86"
2298 mmx_deps="x86"
2299 mmxext_deps="mmx"
2300 sse_deps="mmxext"
2301 sse2_deps="sse"
2302 sse3_deps="sse2"
2303 ssse3_deps="sse3"
2304 sse4_deps="ssse3"
2305 sse42_deps="sse4"
2306 aesni_deps="sse42"
2307 avx_deps="sse42"
2308 xop_deps="avx"
2309 fma3_deps="avx"
2310 fma4_deps="avx"
2311 avx2_deps="avx"
2312
2313 mmx_external_deps="yasm"
2314 mmx_inline_deps="inline_asm"
2315 mmx_suggest="mmx_external mmx_inline"
2316
2317 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2318     eval dep=\$${ext}_deps
2319     eval ${ext}_external_deps='"${dep}_external"'
2320     eval ${ext}_inline_deps='"${dep}_inline"'
2321     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2322 done
2323
2324 aligned_stack_if_any="aarch64 ppc x86"
2325 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2326 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2327 fast_unaligned_if_any="aarch64 ppc x86"
2328 simd_align_16_if_any="altivec neon sse"
2329 simd_align_32_if_any="avx"
2330
2331 # system capabilities
2332 symver_if_any="symver_asm_label symver_gnu_asm"
2333 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2334
2335 # threading support
2336 atomics_gcc_if="sync_val_compare_and_swap"
2337 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2338 atomics_win32_if="MemoryBarrier"
2339 atomics_native_if_any="$ATOMICS_LIST"
2340 w32threads_deps="atomics_native"
2341 threads_if_any="$THREADS_LIST"
2342
2343 # subsystems
2344 dct_select="rdft"
2345 dirac_parse_select="golomb"
2346 error_resilience_select="me_cmp"
2347 faandct_deps="faan fdctdsp"
2348 faanidct_deps="faan idctdsp"
2349 h264dsp_select="startcode"
2350 hevcparse_select="golomb"
2351 frame_thread_encoder_deps="encoders threads"
2352 intrax8_select="blockdsp idctdsp"
2353 mdct_select="fft"
2354 mdct15_select="fft"
2355 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2356 mpeg_er_select="error_resilience"
2357 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2358 mpegaudiodsp_select="dct"
2359 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2360 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2361 vc1dsp_select="h264chroma qpeldsp startcode"
2362 rdft_select="fft"
2363
2364 # decoders / encoders
2365 aac_decoder_select="mdct15 mdct sinewin"
2366 aac_fixed_decoder_select="mdct sinewin"
2367 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2368 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2369 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2370 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2371 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2372 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2373 adpcm_g722_decoder_select="g722dsp"
2374 adpcm_g722_encoder_select="g722dsp"
2375 aic_decoder_select="golomb idctdsp"
2376 alac_encoder_select="lpc"
2377 als_decoder_select="bswapdsp"
2378 amrnb_decoder_select="lsp"
2379 amrwb_decoder_select="lsp"
2380 amv_decoder_select="sp5x_decoder exif"
2381 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2382 ape_decoder_select="bswapdsp llauddsp"
2383 apng_decoder_select="zlib"
2384 apng_encoder_select="llvidencdsp zlib"
2385 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2386 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2387 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2388 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2389 atrac1_decoder_select="mdct sinewin"
2390 atrac3_decoder_select="mdct"
2391 atrac3p_decoder_select="mdct sinewin"
2392 avrn_decoder_select="exif jpegtables"
2393 bink_decoder_select="blockdsp hpeldsp"
2394 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2395 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2396 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2397 cllc_decoder_select="bswapdsp"
2398 comfortnoise_encoder_select="lpc"
2399 cook_decoder_select="audiodsp mdct sinewin"
2400 cscd_decoder_select="lzo"
2401 cscd_decoder_suggest="zlib"
2402 dca_decoder_select="mdct"
2403 dds_decoder_select="texturedsp"
2404 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2405 dnxhd_decoder_select="blockdsp idctdsp"
2406 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2407 dvvideo_decoder_select="dvprofile idctdsp"
2408 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2409 dxa_decoder_select="zlib"
2410 dxv_decoder_select="lzf texturedsp"
2411 eac3_decoder_select="ac3_decoder"
2412 eac3_encoder_select="ac3_encoder"
2413 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2414 eatgq_decoder_select="aandcttables"
2415 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2416 exr_decoder_select="zlib"
2417 ffv1_decoder_select="rangecoder"
2418 ffv1_encoder_select="rangecoder"
2419 ffvhuff_decoder_select="huffyuv_decoder"
2420 ffvhuff_encoder_select="huffyuv_encoder"
2421 fic_decoder_select="golomb"
2422 flac_decoder_select="flacdsp"
2423 flac_encoder_select="bswapdsp flacdsp lpc"
2424 flashsv2_decoder_select="zlib"
2425 flashsv2_encoder_select="zlib"
2426 flashsv_decoder_select="zlib"
2427 flashsv_encoder_select="zlib"
2428 flv_decoder_select="h263_decoder"
2429 flv_encoder_select="h263_encoder"
2430 fourxm_decoder_select="blockdsp bswapdsp"
2431 fraps_decoder_select="bswapdsp huffman"
2432 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2433 g729_decoder_select="audiodsp"
2434 h261_decoder_select="mpegvideo"
2435 h261_encoder_select="aandcttables mpegvideoenc"
2436 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2437 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2438 h263i_decoder_select="h263_decoder"
2439 h263p_decoder_select="h263_decoder"
2440 h263p_encoder_select="h263_encoder"
2441 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2442 h264_decoder_suggest="error_resilience"
2443 hap_decoder_select="snappy texturedsp"
2444 hap_encoder_deps="libsnappy"
2445 hap_encoder_select="texturedspenc"
2446 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2447 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2448 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2449 iac_decoder_select="imc_decoder"
2450 imc_decoder_select="bswapdsp fft mdct sinewin"
2451 indeo3_decoder_select="hpeldsp"
2452 indeo4_decoder_select="ividsp"
2453 indeo5_decoder_select="ividsp"
2454 interplay_video_decoder_select="hpeldsp"
2455 jpegls_decoder_select="mjpeg_decoder"
2456 jv_decoder_select="blockdsp"
2457 lagarith_decoder_select="llviddsp"
2458 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2459 magicyuv_decoder_select="llviddsp"
2460 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2461 metasound_decoder_select="lsp mdct sinewin"
2462 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2463 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2464 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2465 mjpegb_decoder_select="mjpeg_decoder"
2466 mlp_decoder_select="mlp_parser"
2467 mlp_encoder_select="lpc"
2468 motionpixels_decoder_select="bswapdsp"
2469 mp1_decoder_select="mpegaudio"
2470 mp1float_decoder_select="mpegaudio"
2471 mp2_decoder_select="mpegaudio"
2472 mp2float_decoder_select="mpegaudio"
2473 mp3_decoder_select="mpegaudio"
2474 mp3adu_decoder_select="mpegaudio"
2475 mp3adufloat_decoder_select="mpegaudio"
2476 mp3float_decoder_select="mpegaudio"
2477 mp3on4_decoder_select="mpegaudio"
2478 mp3on4float_decoder_select="mpegaudio"
2479 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2480 mpc8_decoder_select="mpegaudiodsp"
2481 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2482 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2483 mpegvideo_decoder_select="mpegvideo"
2484 mpeg1video_decoder_select="mpegvideo"
2485 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2486 mpeg2video_decoder_select="mpegvideo"
2487 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2488 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2489 mpeg4_encoder_select="h263_encoder"
2490 msa1_decoder_select="mss34dsp"
2491 mscc_decoder_select="zlib"
2492 msmpeg4v1_decoder_select="h263_decoder"
2493 msmpeg4v2_decoder_select="h263_decoder"
2494 msmpeg4v2_encoder_select="h263_encoder"
2495 msmpeg4v3_decoder_select="h263_decoder"
2496 msmpeg4v3_encoder_select="h263_encoder"
2497 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2498 mts2_decoder_select="mss34dsp"
2499 mxpeg_decoder_select="mjpeg_decoder"
2500 nellymoser_decoder_select="mdct sinewin"
2501 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2502 nuv_decoder_select="idctdsp lzo"
2503 on2avc_decoder_select="mdct"
2504 opus_decoder_deps="swresample"
2505 opus_decoder_select="mdct15"
2506 opus_encoder_select="audio_frame_queue mdct15"
2507 png_decoder_select="zlib"
2508 png_encoder_select="llvidencdsp zlib"
2509 prores_decoder_select="blockdsp idctdsp"
2510 prores_encoder_select="fdctdsp"
2511 qcelp_decoder_select="lsp"
2512 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2513 ra_144_decoder_select="audiodsp"
2514 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2515 ralf_decoder_select="golomb"
2516 rawvideo_decoder_select="bswapdsp"
2517 rscc_decoder_select="zlib"
2518 rtjpeg_decoder_select="me_cmp"
2519 rv10_decoder_select="h263_decoder"
2520 rv10_encoder_select="h263_encoder"
2521 rv20_decoder_select="h263_decoder"
2522 rv20_encoder_select="h263_encoder"
2523 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2524 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2525 screenpresso_decoder_select="zlib"
2526 shorten_decoder_select="bswapdsp"
2527 sipr_decoder_select="lsp"
2528 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2529 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2530 sonic_decoder_select="golomb rangecoder"
2531 sonic_encoder_select="golomb rangecoder"
2532 sonic_ls_encoder_select="golomb rangecoder"
2533 sp5x_decoder_select="mjpeg_decoder"
2534 srgc_decoder_select="zlib"
2535 svq1_decoder_select="hpeldsp"
2536 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2537 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2538 svq3_decoder_suggest="zlib"
2539 tak_decoder_select="audiodsp"
2540 tdsc_decoder_select="zlib mjpeg_decoder"
2541 theora_decoder_select="vp3_decoder"
2542 thp_decoder_select="mjpeg_decoder"
2543 tiff_decoder_suggest="zlib lzma"
2544 tiff_encoder_suggest="zlib"
2545 truehd_decoder_select="mlp_parser"
2546 truehd_encoder_select="lpc"
2547 truemotion2_decoder_select="bswapdsp"
2548 truespeech_decoder_select="bswapdsp"
2549 tscc_decoder_select="zlib"
2550 twinvq_decoder_select="mdct lsp sinewin"
2551 txd_decoder_select="texturedsp"
2552 utvideo_decoder_select="bswapdsp llviddsp"
2553 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2554 vble_decoder_select="llviddsp"
2555 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2556 vc1_qsv_decoder_deps="libmfx"
2557 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2558 vc1image_decoder_select="vc1_decoder"
2559 vorbis_decoder_select="mdct"
2560 vorbis_encoder_select="mdct"
2561 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2562 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2563 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2564 vp6a_decoder_select="vp6_decoder"
2565 vp6f_decoder_select="vp6_decoder"
2566 vp7_decoder_select="h264pred videodsp vp8dsp"
2567 vp8_decoder_select="h264pred videodsp vp8dsp"
2568 vp9_decoder_select="videodsp vp9_parser"
2569 webp_decoder_select="vp8_decoder exif"
2570 wmalossless_decoder_select="llauddsp"
2571 wmapro_decoder_select="mdct sinewin wma_freqs"
2572 wmav1_decoder_select="mdct sinewin wma_freqs"
2573 wmav1_encoder_select="mdct sinewin wma_freqs"
2574 wmav2_decoder_select="mdct sinewin wma_freqs"
2575 wmav2_encoder_select="mdct sinewin wma_freqs"
2576 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2577 wmv1_decoder_select="h263_decoder"
2578 wmv1_encoder_select="h263_encoder"
2579 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2580 wmv2_encoder_select="h263_encoder wmv2dsp"
2581 wmv3_decoder_select="vc1_decoder"
2582 wmv3image_decoder_select="wmv3_decoder"
2583 xma1_decoder_select="wmapro_decoder"
2584 xma2_decoder_select="wmapro_decoder"
2585 zerocodec_decoder_select="zlib"
2586 zlib_decoder_select="zlib"
2587 zlib_encoder_select="zlib"
2588 zmbv_decoder_select="zlib"
2589 zmbv_encoder_select="zlib"
2590
2591 # platform codecs
2592 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2593 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2594
2595 # hardware accelerators
2596 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2597 cuda_deps_any="dlopen LoadLibrary"
2598 cuvid_deps="cuda"
2599 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2600 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2601 dxva2_extralibs="-luser32"
2602 dxva2_lib_deps="dxva2"
2603 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2604 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2605 vda_deps="vda_framework pthreads"
2606 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2607 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2608 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2609 xvmc_deps="X11_extensions_XvMClib_h"
2610
2611 h263_vaapi_hwaccel_deps="vaapi"
2612 h263_vaapi_hwaccel_select="h263_decoder"
2613 h263_videotoolbox_hwaccel_deps="videotoolbox"
2614 h263_videotoolbox_hwaccel_select="h263_decoder"
2615 h264_cuvid_hwaccel_deps="cuda cuvid"
2616 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2617 h264_d3d11va_hwaccel_deps="d3d11va"
2618 h264_d3d11va_hwaccel_select="h264_decoder"
2619 h264_dxva2_hwaccel_deps="dxva2"
2620 h264_dxva2_hwaccel_select="h264_decoder"
2621 h264_mediacodec_hwaccel_deps="mediacodec"
2622 h264_mmal_hwaccel_deps="mmal"
2623 h264_qsv_hwaccel_deps="libmfx"
2624 h264_vaapi_hwaccel_deps="vaapi"
2625 h264_vaapi_hwaccel_select="h264_decoder"
2626 h264_vda_hwaccel_deps="vda"
2627 h264_vda_hwaccel_select="h264_decoder"
2628 h264_vda_old_hwaccel_deps="vda"
2629 h264_vda_old_hwaccel_select="h264_decoder"
2630 h264_vdpau_hwaccel_deps="vdpau"
2631 h264_vdpau_hwaccel_select="h264_decoder"
2632 h264_videotoolbox_hwaccel_deps="videotoolbox"
2633 h264_videotoolbox_hwaccel_select="h264_decoder"
2634 hevc_cuvid_hwaccel_deps="cuda cuvid"
2635 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2636 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2637 hevc_d3d11va_hwaccel_select="hevc_decoder"
2638 hevc_mediacodec_hwaccel_deps="mediacodec"
2639 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2640 hevc_dxva2_hwaccel_select="hevc_decoder"
2641 hevc_qsv_hwaccel_deps="libmfx"
2642 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2643 hevc_vaapi_hwaccel_select="hevc_decoder"
2644 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2645 hevc_vdpau_hwaccel_select="hevc_decoder"
2646 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2647 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2648 mpeg_xvmc_hwaccel_deps="xvmc"
2649 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2650 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2651 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2652 mpeg1_vdpau_hwaccel_deps="vdpau"
2653 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2654 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2655 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2656 mpeg1_xvmc_hwaccel_deps="xvmc"
2657 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2658 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2659 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2660 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2661 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2662 mpeg2_dxva2_hwaccel_deps="dxva2"
2663 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2664 mpeg2_mmal_hwaccel_deps="mmal"
2665 mpeg2_qsv_hwaccel_deps="libmfx"
2666 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2667 mpeg2_vaapi_hwaccel_deps="vaapi"
2668 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2669 mpeg2_vdpau_hwaccel_deps="vdpau"
2670 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2672 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2673 mpeg2_xvmc_hwaccel_deps="xvmc"
2674 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2675 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2676 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2677 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2678 mpeg4_mmal_hwaccel_deps="mmal"
2679 mpeg4_vaapi_hwaccel_deps="vaapi"
2680 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2681 mpeg4_vdpau_hwaccel_deps="vdpau"
2682 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2683 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2684 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2685 vc1_cuvid_hwaccel_deps="cuda cuvid"
2686 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2687 vc1_d3d11va_hwaccel_deps="d3d11va"
2688 vc1_d3d11va_hwaccel_select="vc1_decoder"
2689 vc1_dxva2_hwaccel_deps="dxva2"
2690 vc1_dxva2_hwaccel_select="vc1_decoder"
2691 vc1_mmal_hwaccel_deps="mmal"
2692 vc1_qsv_hwaccel_deps="libmfx"
2693 vc1_qsv_hwaccel_select="qsvdec_vc1"
2694 vc1_vaapi_hwaccel_deps="vaapi"
2695 vc1_vaapi_hwaccel_select="vc1_decoder"
2696 vc1_vdpau_hwaccel_deps="vdpau"
2697 vc1_vdpau_hwaccel_select="vc1_decoder"
2698 vp8_cuvid_hwaccel_deps="cuda cuvid"
2699 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2700 vp9_cuvid_hwaccel_deps="cuda cuvid"
2701 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2702 vp8_mediacodec_hwaccel_deps="mediacodec"
2703 vp8_qsv_hwaccel_deps="libmfx"
2704 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2705 vp9_d3d11va_hwaccel_select="vp9_decoder"
2706 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2707 vp9_dxva2_hwaccel_select="vp9_decoder"
2708 vp9_mediacodec_hwaccel_deps="mediacodec"
2709 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2710 vp9_vaapi_hwaccel_select="vp9_decoder"
2711 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2712 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2713 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2714 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2715
2716 # hardware-accelerated codecs
2717 omx_deps="dlopen pthreads"
2718 omx_extralibs='$ldl'
2719 omx_rpi_select="omx"
2720 qsvdec_select="qsv"
2721 qsvenc_select="qsv"
2722 vaapi_encode_deps="vaapi"
2723
2724 hwupload_cuda_filter_deps="cuda"
2725 scale_npp_filter_deps="cuda_sdk libnpp"
2726 scale_cuda_filter_deps="cuda_sdk"
2727
2728 nvenc_deps="cuda"
2729 nvenc_deps_any="dlopen LoadLibrary"
2730 nvenc_encoder_deps="nvenc"
2731
2732 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2733 h264_cuvid_decoder_deps="cuda cuvid"
2734 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2735 h264_mediacodec_decoder_deps="mediacodec"
2736 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2737 h264_mmal_decoder_deps="mmal"
2738 h264_nvenc_encoder_deps="nvenc"
2739 h264_omx_encoder_deps="omx"
2740 h264_qsv_decoder_deps="libmfx"
2741 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2742 h264_qsv_encoder_deps="libmfx"
2743 h264_qsv_encoder_select="qsvenc"
2744 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2745 h264_vaapi_encoder_select="vaapi_encode golomb"
2746 h264_vda_decoder_deps="vda"
2747 h264_vda_decoder_select="h264_decoder"
2748 h264_vdpau_decoder_deps="vdpau"
2749 h264_vdpau_decoder_select="h264_decoder"
2750 hevc_cuvid_decoder_deps="cuda cuvid"
2751 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2752 hevc_mediacodec_decoder_deps="mediacodec"
2753 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2754 hevc_nvenc_encoder_deps="nvenc"
2755 hevc_qsv_decoder_deps="libmfx"
2756 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2757 hevc_qsv_encoder_deps="libmfx"
2758 hevc_qsv_encoder_select="hevcparse qsvenc"
2759 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2760 hevc_vaapi_encoder_select="vaapi_encode golomb"
2761 mjpeg_cuvid_decoder_deps="cuda cuvid"
2762 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2763 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2764 mpeg1_cuvid_decoder_deps="cuda cuvid"
2765 mpeg1_vdpau_decoder_deps="vdpau"
2766 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2767 mpeg2_crystalhd_decoder_select="crystalhd"
2768 mpeg2_cuvid_decoder_deps="cuda cuvid"
2769 mpeg2_mmal_decoder_deps="mmal"
2770 mpeg2_qsv_decoder_deps="libmfx"
2771 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2772 mpeg2_qsv_encoder_deps="libmfx"
2773 mpeg2_qsv_encoder_select="qsvenc"
2774 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2775 mpeg2_vaapi_encoder_select="vaapi_encode"
2776 mpeg4_crystalhd_decoder_select="crystalhd"
2777 mpeg4_cuvid_decoder_deps="cuda cuvid"
2778 mpeg4_mediacodec_decoder_deps="mediacodec"
2779 mpeg4_mmal_decoder_deps="mmal"
2780 mpeg4_omx_encoder_deps="omx"
2781 mpeg4_vdpau_decoder_deps="vdpau"
2782 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2783 mpeg_vdpau_decoder_deps="vdpau"
2784 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2785 msmpeg4_crystalhd_decoder_select="crystalhd"
2786 nvenc_h264_encoder_select="h264_nvenc_encoder"
2787 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2788 vc1_crystalhd_decoder_select="crystalhd"
2789 vc1_cuvid_decoder_deps="cuda cuvid"
2790 vc1_mmal_decoder_deps="mmal"
2791 vc1_vdpau_decoder_deps="vdpau"
2792 vc1_vdpau_decoder_select="vc1_decoder"
2793 vp8_cuvid_decoder_deps="cuda cuvid"
2794 vp8_mediacodec_decoder_deps="mediacodec"
2795 vp8_qsv_decoder_deps="libmfx"
2796 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2797 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2798 vp8_vaapi_encoder_select="vaapi_encode"
2799 vp9_cuvid_decoder_deps="cuda cuvid"
2800 vp9_mediacodec_decoder_deps="mediacodec"
2801 wmv3_crystalhd_decoder_select="crystalhd"
2802 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2803
2804 # parsers
2805 h264_parser_select="golomb h264dsp h264parse"
2806 hevc_parser_select="hevcparse"
2807 mpegaudio_parser_select="mpegaudioheader"
2808 mpegvideo_parser_select="mpegvideo"
2809 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2810 vc1_parser_select="vc1dsp"
2811
2812 # bitstream_filters
2813 mjpeg2jpeg_bsf_select="jpegtables"
2814
2815 # external libraries
2816 aac_at_decoder_deps="audiotoolbox"
2817 ac3_at_decoder_deps="audiotoolbox"
2818 ac3_at_decoder_select="ac3_parser"
2819 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2820 alac_at_decoder_deps="audiotoolbox"
2821 amr_nb_at_decoder_deps="audiotoolbox"
2822 avisynth_deps_any="dlopen LoadLibrary"
2823 avisynth_demuxer_deps="avisynth"
2824 avisynth_demuxer_select="riffdec"
2825 eac3_at_decoder_deps="audiotoolbox"
2826 eac3_at_decoder_select="ac3_parser"
2827 gsm_ms_at_decoder_deps="audiotoolbox"
2828 ilbc_at_decoder_deps="audiotoolbox"
2829 mp1_at_decoder_deps="audiotoolbox"
2830 mp2_at_decoder_deps="audiotoolbox"
2831 mp3_at_decoder_deps="audiotoolbox"
2832 mp1_at_decoder_select="mpegaudioheader"
2833 mp2_at_decoder_select="mpegaudioheader"
2834 mp3_at_decoder_select="mpegaudioheader"
2835 pcm_alaw_at_decoder_deps="audiotoolbox"
2836 pcm_mulaw_at_decoder_deps="audiotoolbox"
2837 qdmc_at_decoder_deps="audiotoolbox"
2838 qdm2_at_decoder_deps="audiotoolbox"
2839 aac_at_encoder_deps="audiotoolbox"
2840 aac_at_encoder_select="audio_frame_queue"
2841 alac_at_encoder_deps="audiotoolbox"
2842 alac_at_encoder_select="audio_frame_queue"
2843 ilbc_at_encoder_deps="audiotoolbox"
2844 ilbc_at_encoder_select="audio_frame_queue"
2845 pcm_alaw_at_encoder_deps="audiotoolbox"
2846 pcm_alaw_at_encoder_select="audio_frame_queue"
2847 pcm_mulaw_at_encoder_deps="audiotoolbox"
2848 pcm_mulaw_at_encoder_select="audio_frame_queue"
2849 chromaprint_muxer_deps="chromaprint"
2850 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2851 libcelt_decoder_deps="libcelt"
2852 libfdk_aac_decoder_deps="libfdk_aac"
2853 libfdk_aac_encoder_deps="libfdk_aac"
2854 libfdk_aac_encoder_select="audio_frame_queue"
2855 libgme_demuxer_deps="libgme"
2856 libgsm_decoder_deps="libgsm"
2857 libgsm_encoder_deps="libgsm"
2858 libgsm_ms_decoder_deps="libgsm"
2859 libgsm_ms_encoder_deps="libgsm"
2860 libilbc_decoder_deps="libilbc"
2861 libilbc_encoder_deps="libilbc"
2862 libkvazaar_encoder_deps="libkvazaar"
2863 libmodplug_demuxer_deps="libmodplug"
2864 libmp3lame_encoder_deps="libmp3lame"
2865 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2866 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2867 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2868 libopencore_amrnb_encoder_select="audio_frame_queue"
2869 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2870 libopenh264_decoder_deps="libopenh264"
2871 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2872 libopenh264_encoder_deps="libopenh264"
2873 libopenjpeg_decoder_deps="libopenjpeg"
2874 libopenjpeg_encoder_deps="libopenjpeg"
2875 libopenmpt_demuxer_deps="libopenmpt"
2876 libopus_decoder_deps="libopus"
2877 libopus_encoder_deps="libopus"
2878 libopus_encoder_select="audio_frame_queue"
2879 librsvg_decoder_deps="librsvg"
2880 libschroedinger_decoder_deps="libschroedinger"
2881 libschroedinger_encoder_deps="libschroedinger"
2882 libshine_encoder_deps="libshine"
2883 libshine_encoder_select="audio_frame_queue"
2884 libspeex_decoder_deps="libspeex"
2885 libspeex_encoder_deps="libspeex"
2886 libspeex_encoder_select="audio_frame_queue"
2887 libtheora_encoder_deps="libtheora"
2888 libtwolame_encoder_deps="libtwolame"
2889 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2890 libvorbis_decoder_deps="libvorbis"
2891 libvorbis_encoder_deps="libvorbis"
2892 libvorbis_encoder_select="audio_frame_queue"
2893 libvpx_vp8_decoder_deps="libvpx"
2894 libvpx_vp8_encoder_deps="libvpx"
2895 libvpx_vp9_decoder_deps="libvpx"
2896 libvpx_vp9_encoder_deps="libvpx"
2897 libwavpack_encoder_deps="libwavpack"
2898 libwavpack_encoder_select="audio_frame_queue"
2899 libwebp_encoder_deps="libwebp"
2900 libwebp_anim_encoder_deps="libwebp"
2901 libx262_encoder_deps="libx262"
2902 libx264_encoder_deps="libx264"
2903 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2904 libx264rgb_encoder_select="libx264_encoder"
2905 libx265_encoder_deps="libx265"
2906 libxavs_encoder_deps="libxavs"
2907 libxvid_encoder_deps="libxvid"
2908 libzvbi_teletext_decoder_deps="libzvbi"
2909 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2910 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2911 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2912 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2913 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2914
2915 # demuxers / muxers
2916 ac3_demuxer_select="ac3_parser"
2917 aiff_muxer_select="iso_media"
2918 asf_demuxer_select="riffdec"
2919 asf_o_demuxer_select="riffdec"
2920 asf_muxer_select="riffenc"
2921 asf_stream_muxer_select="asf_muxer"
2922 avi_demuxer_select="iso_media riffdec exif"
2923 avi_muxer_select="riffenc"
2924 caf_demuxer_select="iso_media riffdec"
2925 caf_muxer_select="iso_media"
2926 dash_muxer_select="mp4_muxer"
2927 dirac_demuxer_select="dirac_parser"
2928 dts_demuxer_select="dca_parser"
2929 dtshd_demuxer_select="dca_parser"
2930 dv_demuxer_select="dvprofile"
2931 dv_muxer_select="dvprofile"
2932 dxa_demuxer_select="riffdec"
2933 eac3_demuxer_select="ac3_parser"
2934 f4v_muxer_select="mov_muxer"
2935 fifo_muxer_deps="threads"
2936 flac_demuxer_select="flac_parser"
2937 hds_muxer_select="flv_muxer"
2938 hls_muxer_select="mpegts_muxer"
2939 image2_alias_pix_demuxer_select="image2_demuxer"
2940 image2_brender_pix_demuxer_select="image2_demuxer"
2941 ipod_muxer_select="mov_muxer"
2942 ismv_muxer_select="mov_muxer"
2943 libnut_demuxer_deps="libnut"
2944 libnut_muxer_deps="libnut"
2945 matroska_audio_muxer_select="matroska_muxer"
2946 matroska_demuxer_select="iso_media riffdec"
2947 matroska_demuxer_suggest="bzlib lzo zlib"
2948 matroska_muxer_select="iso_media riffenc"
2949 mmf_muxer_select="riffenc"
2950 mov_demuxer_select="iso_media riffdec"
2951 mov_demuxer_suggest="zlib"
2952 mov_muxer_select="iso_media riffenc rtpenc_chain"
2953 mp3_demuxer_select="mpegaudio_parser"
2954 mp3_muxer_select="mpegaudioheader"
2955 mp4_muxer_select="mov_muxer"
2956 mpegts_demuxer_select="iso_media"
2957 mpegts_muxer_select="adts_muxer latm_muxer"
2958 mpegtsraw_demuxer_select="mpegts_demuxer"
2959 mxf_d10_muxer_select="mxf_muxer"
2960 mxf_opatom_muxer_select="mxf_muxer"
2961 nut_muxer_select="riffenc"
2962 nuv_demuxer_select="riffdec"
2963 oga_muxer_select="ogg_muxer"
2964 ogg_demuxer_select="dirac_parse"
2965 ogv_muxer_select="ogg_muxer"
2966 opus_muxer_select="ogg_muxer"
2967 psp_muxer_select="mov_muxer"
2968 rtp_demuxer_select="sdp_demuxer"
2969 rtp_muxer_select="golomb"
2970 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2971 rtsp_demuxer_select="http_protocol rtpdec"
2972 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2973 sap_demuxer_select="sdp_demuxer"
2974 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2975 sdp_demuxer_select="rtpdec"
2976 smoothstreaming_muxer_select="ismv_muxer"
2977 spdif_muxer_select="aac_parser"
2978 spx_muxer_select="ogg_muxer"
2979 swf_demuxer_suggest="zlib"
2980 tak_demuxer_select="tak_parser"
2981 tg2_muxer_select="mov_muxer"
2982 tgp_muxer_select="mov_muxer"
2983 vobsub_demuxer_select="mpegps_demuxer"
2984 w64_demuxer_select="wav_demuxer"
2985 w64_muxer_select="wav_muxer"
2986 wav_demuxer_select="riffdec"
2987 wav_muxer_select="riffenc"
2988 webm_muxer_select="iso_media riffenc"
2989 webm_dash_manifest_demuxer_select="matroska_demuxer"
2990 wtv_demuxer_select="mpegts_demuxer riffdec"
2991 wtv_muxer_select="mpegts_muxer riffenc"
2992 xmv_demuxer_select="riffdec"
2993 xwma_demuxer_select="riffdec"
2994
2995 # indevs / outdevs
2996 alsa_indev_deps="alsa"
2997 alsa_outdev_deps="alsa"
2998 avfoundation_indev_deps="pthreads"
2999 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3000 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3001 caca_outdev_deps="libcaca"
3002 decklink_indev_deps="decklink threads"
3003 decklink_indev_extralibs="-lstdc++"
3004 decklink_outdev_deps="decklink threads"
3005 decklink_outdev_extralibs="-lstdc++"
3006 dshow_indev_deps="IBaseFilter"
3007 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3008 dv1394_indev_deps="dv1394"
3009 dv1394_indev_select="dv_demuxer"
3010 fbdev_indev_deps="linux_fb_h"
3011 fbdev_outdev_deps="linux_fb_h"
3012 gdigrab_indev_deps="CreateDIBSection"
3013 gdigrab_indev_extralibs="-lgdi32"
3014 gdigrab_indev_select="bmp_decoder"
3015 iec61883_indev_deps="libiec61883"
3016 jack_indev_deps="jack"
3017 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3018 lavfi_indev_deps="avfilter"
3019 libcdio_indev_deps="libcdio"
3020 libdc1394_indev_deps="libdc1394"
3021 libv4l2_indev_deps="libv4l2"
3022 openal_indev_deps="openal"
3023 opengl_outdev_deps="opengl"
3024 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3025 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3026 pulse_indev_deps="libpulse"
3027 pulse_outdev_deps="libpulse"
3028 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3029 qtkit_indev_select="qtkit"
3030 sdl2_outdev_deps="sdl2"
3031 sndio_indev_deps="sndio"
3032 sndio_outdev_deps="sndio"
3033 v4l_indev_deps="linux_videodev_h"
3034 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3035 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3036 vfwcap_indev_deps="vfw32 vfwcap_defines"
3037 xcbgrab_indev_deps="libxcb"
3038 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3039 xv_outdev_extralibs="-lXv -lX11 -lXext"
3040
3041 # protocols
3042 async_protocol_deps="threads"
3043 bluray_protocol_deps="libbluray"
3044 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3045 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3046 ffrtmpcrypt_protocol_select="tcp_protocol"
3047 ffrtmphttp_protocol_deps="!librtmp_protocol"
3048 ffrtmphttp_protocol_select="http_protocol"
3049 ftp_protocol_select="tcp_protocol"
3050 gopher_protocol_select="network"
3051 http_protocol_select="tcp_protocol"
3052 httpproxy_protocol_select="tcp_protocol"
3053 https_protocol_select="tls_protocol"
3054 icecast_protocol_select="http_protocol"
3055 librtmp_protocol_deps="librtmp"
3056 librtmpe_protocol_deps="librtmp"
3057 librtmps_protocol_deps="librtmp"
3058 librtmpt_protocol_deps="librtmp"
3059 librtmpte_protocol_deps="librtmp"
3060 libsmbclient_protocol_deps="libsmbclient gplv3"
3061 libssh_protocol_deps="libssh"
3062 mmsh_protocol_select="http_protocol"
3063 mmst_protocol_select="network"
3064 rtmp_protocol_deps="!librtmp_protocol"
3065 rtmp_protocol_select="tcp_protocol"
3066 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3067 rtmps_protocol_deps="!librtmp_protocol"
3068 rtmps_protocol_select="tls_protocol"
3069 rtmpt_protocol_select="ffrtmphttp_protocol"
3070 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3071 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3072 rtp_protocol_select="udp_protocol"
3073 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3074 sctp_protocol_select="network"
3075 srtp_protocol_select="rtp_protocol srtp"
3076 tcp_protocol_select="network"
3077 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3078 tls_gnutls_protocol_select="tcp_protocol"
3079 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3080 tls_openssl_protocol_select="tcp_protocol"
3081 tls_schannel_protocol_deps="schannel"
3082 tls_schannel_protocol_select="tcp_protocol"
3083 tls_securetransport_protocol_deps="securetransport"
3084 tls_securetransport_protocol_select="tcp_protocol"
3085 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3086 udp_protocol_select="network"
3087 udplite_protocol_select="network"
3088 unix_protocol_deps="sys_un_h"
3089 unix_protocol_select="network"
3090
3091 # filters
3092 afftfilt_filter_deps="avcodec"
3093 afftfilt_filter_select="fft"
3094 afir_filter_deps="avcodec"
3095 afir_filter_select="fft"
3096 amovie_filter_deps="avcodec avformat"
3097 aresample_filter_deps="swresample"
3098 ass_filter_deps="libass"
3099 atempo_filter_deps="avcodec"
3100 atempo_filter_select="rdft"
3101 azmq_filter_deps="libzmq"
3102 blackframe_filter_deps="gpl"
3103 boxblur_filter_deps="gpl"
3104 bs2b_filter_deps="libbs2b"
3105 colormatrix_filter_deps="gpl"
3106 cover_rect_filter_deps="avcodec avformat gpl"
3107 cropdetect_filter_deps="gpl"
3108 deinterlace_qsv_filter_deps="libmfx"
3109 deinterlace_vaapi_filter_deps="vaapi"
3110 delogo_filter_deps="gpl"
3111 deshake_filter_select="pixelutils"
3112 drawtext_filter_deps="libfreetype"
3113 elbg_filter_deps="avcodec"
3114 eq_filter_deps="gpl"
3115 fftfilt_filter_deps="avcodec"
3116 fftfilt_filter_select="rdft"
3117 find_rect_filter_deps="avcodec avformat gpl"
3118 firequalizer_filter_deps="avcodec"
3119 firequalizer_filter_select="rdft"
3120 flite_filter_deps="libflite"
3121 framerate_filter_select="pixelutils"
3122 frei0r_filter_deps="frei0r dlopen"
3123 frei0r_src_filter_deps="frei0r dlopen"
3124 fspp_filter_deps="gpl"
3125 geq_filter_deps="gpl"
3126 histeq_filter_deps="gpl"
3127 hqdn3d_filter_deps="gpl"
3128 interlace_filter_deps="gpl"
3129 kerndeint_filter_deps="gpl"
3130 ladspa_filter_deps="ladspa dlopen"
3131 mcdeint_filter_deps="avcodec gpl"
3132 movie_filter_deps="avcodec avformat"
3133 mpdecimate_filter_deps="gpl"
3134 mpdecimate_filter_select="pixelutils"
3135 mptestsrc_filter_deps="gpl"
3136 negate_filter_deps="lut_filter"
3137 nnedi_filter_deps="gpl"
3138 ocr_filter_deps="libtesseract"
3139 ocv_filter_deps="libopencv"
3140 owdenoise_filter_deps="gpl"
3141 pan_filter_deps="swresample"
3142 perspective_filter_deps="gpl"
3143 phase_filter_deps="gpl"
3144 pp7_filter_deps="gpl"
3145 pp_filter_deps="gpl postproc"
3146 pullup_filter_deps="gpl"
3147 removelogo_filter_deps="avcodec avformat swscale"
3148 repeatfields_filter_deps="gpl"
3149 resample_filter_deps="avresample"
3150 rubberband_filter_deps="librubberband"
3151 sab_filter_deps="gpl swscale"
3152 scale2ref_filter_deps="swscale"
3153 scale_filter_deps="swscale"
3154 scale_qsv_filter_deps="libmfx"
3155 select_filter_select="pixelutils"
3156 showcqt_filter_deps="avcodec avformat swscale"
3157 showcqt_filter_select="fft"
3158 showfreqs_filter_deps="avcodec"
3159 showfreqs_filter_select="fft"
3160 showspectrum_filter_deps="avcodec"
3161 showspectrum_filter_select="fft"
3162 showspectrumpic_filter_deps="avcodec"
3163 showspectrumpic_filter_select="fft"
3164 signature_filter_deps="gpl avcodec avformat"
3165 smartblur_filter_deps="gpl swscale"
3166 sofalizer_filter_deps="netcdf avcodec"
3167 sofalizer_filter_select="fft"
3168 spectrumsynth_filter_deps="avcodec"
3169 spectrumsynth_filter_select="fft"
3170 spp_filter_deps="gpl avcodec"
3171 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3172 stereo3d_filter_deps="gpl"
3173 subtitles_filter_deps="avformat avcodec libass"
3174 super2xsai_filter_deps="gpl"
3175 pixfmts_super2xsai_test_deps="super2xsai_filter"
3176 tinterlace_filter_deps="gpl"
3177 tinterlace_merge_test_deps="tinterlace_filter"
3178 tinterlace_pad_test_deps="tinterlace_filter"
3179 uspp_filter_deps="gpl avcodec"
3180 vaguedenoiser_filter_deps="gpl"
3181 vidstabdetect_filter_deps="libvidstab"
3182 vidstabtransform_filter_deps="libvidstab"
3183 zmq_filter_deps="libzmq"
3184 zoompan_filter_deps="swscale"
3185 zscale_filter_deps="libzimg"
3186 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3187
3188 # examples
3189 avio_dir_cmd_deps="avformat avutil"
3190 avio_reading_deps="avformat avcodec avutil"
3191 decode_audio_example_deps="avcodec avutil"
3192 decode_video_example_deps="avcodec avutil"
3193 demuxing_decoding_example_deps="avcodec avformat avutil"
3194 encode_audio_example_deps="avcodec avutil"
3195 encode_video_example_deps="avcodec avutil"
3196 extract_mvs_example_deps="avcodec avformat avutil"
3197 filter_audio_example_deps="avfilter avutil"
3198 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3199 filtering_video_example_deps="avfilter avcodec avformat avutil"
3200 http_multiclient_example_deps="avformat avutil fork"
3201 metadata_example_deps="avformat avutil"
3202 muxing_example_deps="avcodec avformat avutil swscale"
3203 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3204 remuxing_example_deps="avcodec avformat avutil"
3205 resampling_audio_example_deps="avutil swresample"
3206 scaling_video_example_deps="avutil swscale"
3207 transcode_aac_example_deps="avcodec avformat swresample"
3208 transcoding_example_deps="avfilter avcodec avformat avutil"
3209
3210 # libraries, in linking order
3211 avcodec_deps="avutil"
3212 avcodec_select="null_bsf"
3213 avdevice_deps="avformat avcodec avutil"
3214 avfilter_deps="avutil"
3215 avformat_deps="avcodec avutil"
3216 avresample_deps="avutil"
3217 postproc_deps="avutil gpl"
3218 swresample_deps="avutil"
3219 swscale_deps="avutil"
3220
3221 # programs
3222 ffmpeg_deps="avcodec avfilter avformat swresample"
3223 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3224                null_filter
3225                trim_filter"
3226 ffplay_deps="avcodec avformat swscale swresample sdl2"
3227 ffplay_extralibs='$sdl2_extralibs'
3228 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3229 ffprobe_deps="avcodec avformat"
3230 ffserver_deps="avformat fork sarestart"
3231 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3232
3233 # documentation
3234 podpages_deps="perl"
3235 manpages_deps="perl pod2man"
3236 htmlpages_deps="perl"
3237 htmlpages_deps_any="makeinfo_html texi2html"
3238 txtpages_deps="perl makeinfo"
3239 doc_deps_any="manpages htmlpages podpages txtpages"
3240
3241 # default parameters
3242
3243 logfile="ffbuild/config.log"
3244
3245 # installation paths
3246 prefix_default="/usr/local"
3247 bindir_default='${prefix}/bin'
3248 datadir_default='${prefix}/share/ffmpeg'
3249 docdir_default='${prefix}/share/doc/ffmpeg'
3250 incdir_default='${prefix}/include'
3251 libdir_default='${prefix}/lib'
3252 mandir_default='${prefix}/share/man'
3253
3254 # toolchain
3255 ar_default="ar"
3256 cc_default="gcc"
3257 cxx_default="g++"
3258 host_cc_default="gcc"
3259 doxygen_default="doxygen"
3260 install="install"
3261 ln_s_default="ln -s -f"
3262 nm_default="nm -g"
3263 objformat="elf"
3264 pkg_config_default=pkg-config
3265 ranlib_default="ranlib"
3266 strip_default="strip"
3267 version_script='--version-script'
3268 yasmexe_default="yasm"
3269 windres_default="windres"
3270 nvcc_default="nvcc"
3271 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3272
3273 # OS
3274 target_os_default=$(tolower $(uname -s))
3275 host_os=$target_os_default
3276
3277 # machine
3278 if test "$target_os_default" = aix; then
3279     arch_default=$(uname -p)
3280     strip_default="strip -X32_64"
3281 else
3282     arch_default=$(uname -m)
3283 fi
3284 cpu="generic"
3285 intrinsics="none"
3286
3287 # configurable options
3288 enable $PROGRAM_LIST
3289 enable $DOCUMENT_LIST
3290 enable $EXAMPLE_LIST
3291 enable $(filter_out avresample $LIBRARY_LIST)
3292 enable stripping
3293
3294 enable asm
3295 enable debug
3296 enable doc
3297 enable faan faandct faanidct
3298 enable optimizations
3299 enable runtime_cpudetect
3300 enable safe_bitstream_reader
3301 enable static
3302 enable swscale_alpha
3303 enable valgrind_backtrace
3304
3305 sws_max_filter_size_default=256
3306 set_default sws_max_filter_size
3307
3308 # build settings
3309 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3310 LIBPREF="lib"
3311 LIBSUF=".a"
3312 FULLNAME='$(NAME)$(BUILDSUF)'
3313 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3314 SLIBPREF="lib"
3315 SLIBSUF=".so"
3316 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3317 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3318 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3319 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3320 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3321 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3322 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3323
3324 asflags_filter=echo
3325 cflags_filter=echo
3326 ldflags_filter=echo
3327
3328 AS_C='-c'
3329 AS_O='-o $@'
3330 CC_C='-c'
3331 CC_E='-E -o $@'
3332 CC_O='-o $@'
3333 CXX_C='-c'
3334 CXX_O='-o $@'
3335 OBJCC_C='-c'
3336 OBJCC_E='-E -o $@'
3337 OBJCC_O='-o $@'
3338 LD_O='-o $@'
3339 LD_LIB='-l%'
3340 LD_PATH='-L'
3341 HOSTCC_C='-c'
3342 HOSTCC_E='-E -o $@'
3343 HOSTCC_O='-o $@'
3344 HOSTLD_O='-o $@'
3345 NVCC_C='-c'
3346 NVCC_O='-o $@'
3347
3348 host_extralibs='-lm'
3349 host_cflags_filter=echo
3350 host_ldflags_filter=echo
3351
3352 target_path='$(CURDIR)'
3353
3354 # since the object filename is not given with the -MM flag, the compiler
3355 # is only able to print the basename, and we must add the path ourselves
3356 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3357 DEPFLAGS='-MM'
3358
3359 # find source path
3360 if test -f configure; then
3361     source_path=.
3362 else
3363     source_path=$(cd $(dirname "$0"); pwd)
3364     case "$source_path" in
3365         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3366     esac
3367     test -e "$source_path/config.h" &&
3368         die "Out of tree builds are impossible with config.h in source dir."
3369 fi
3370
3371 for v in "$@"; do
3372     r=${v#*=}
3373     l=${v%"$r"}
3374     r=$(sh_quote "$r")
3375     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3376 done
3377
3378 find_things(){
3379     thing=$1
3380     pattern=$2
3381     file=$source_path/$3
3382     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3383 }
3384
3385 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3386 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3387 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3388 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3389 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3390 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3391 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3392 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3393 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3394
3395 find_things_extern(){
3396     thing=$1
3397     pattern=$2
3398     file=$source_path/$3
3399     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3400 }
3401
3402 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3403 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3404
3405 ALL_COMPONENTS="
3406     $BSF_LIST
3407     $DECODER_LIST
3408     $DEMUXER_LIST
3409     $ENCODER_LIST
3410     $FILTER_LIST
3411     $HWACCEL_LIST
3412     $INDEV_LIST
3413     $MUXER_LIST
3414     $OUTDEV_LIST
3415     $PARSER_LIST
3416     $PROTOCOL_LIST
3417 "
3418
3419 for n in $COMPONENT_LIST; do
3420     v=$(toupper ${n%s})_LIST
3421     eval enable \$$v
3422     eval ${n}_if_any="\$$v"
3423 done
3424
3425 enable $ARCH_EXT_LIST
3426
3427 die_unknown(){
3428     echo "Unknown option \"$1\"."
3429     echo "See $0 --help for available options."
3430     exit 1
3431 }
3432
3433 print_in_columns() {
3434     cols=$(expr $ncols / 24)
3435     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3436 }
3437
3438 show_list() {
3439     suffix=_$1
3440     shift
3441     echo $* | sed s/$suffix//g | print_in_columns
3442     exit 0
3443 }
3444
3445 rand_list(){
3446     IFS=', '
3447     set -- $*
3448     unset IFS
3449     for thing; do
3450         comp=${thing%:*}
3451         prob=${thing#$comp}
3452         prob=${prob#:}
3453         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3454         echo "prob ${prob:-0.5}"
3455         printf '%s\n' $comp
3456     done
3457 }
3458
3459 do_random(){
3460     action=$1
3461     shift
3462     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3463     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3464 }
3465
3466 for opt do
3467     optval="${opt#*=}"
3468     case "$opt" in
3469         --extra-ldflags=*)
3470             add_ldflags $optval
3471         ;;
3472         --extra-ldexeflags=*)
3473             add_ldexeflags $optval
3474         ;;
3475         --extra-ldlibflags=*)
3476             add_ldlibflags $optval
3477         ;;
3478         --extra-libs=*)
3479             add_extralibs $optval
3480         ;;
3481         --disable-devices)
3482             disable $INDEV_LIST $OUTDEV_LIST
3483         ;;
3484         --enable-debug=*)
3485             debuglevel="$optval"
3486         ;;
3487         --disable-programs)
3488             disable $PROGRAM_LIST
3489         ;;
3490         --disable-everything)
3491             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3492         ;;
3493         --disable-all)
3494             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3495             disable $LIBRARY_LIST $PROGRAM_LIST doc
3496             enable avutil
3497         ;;
3498         --enable-random|--disable-random)
3499             action=${opt%%-random}
3500             do_random ${action#--} $COMPONENT_LIST
3501         ;;
3502         --enable-random=*|--disable-random=*)
3503             action=${opt%%-random=*}
3504             do_random ${action#--} $optval
3505         ;;
3506         --enable-*=*|--disable-*=*)
3507             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3508             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3509             eval list=\$$(toupper $thing)_LIST
3510             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3511             list=$(filter "$name" $list)
3512             [ "$list" = "" ] && warn "Option $opt did not match anything"
3513             $action $list
3514         ;;
3515         --enable-?*|--disable-?*)
3516             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3517             if is_in $option $COMPONENT_LIST; then
3518                 test $action = disable && action=unset
3519                 eval $action \$$(toupper ${option%s})_LIST
3520             elif is_in $option $CMDLINE_SELECT; then
3521                 $action $option
3522             else
3523                 die_unknown $opt
3524             fi
3525         ;;
3526         --list-*)
3527             NAME="${opt#--list-}"
3528             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3529             NAME=${NAME%s}
3530             eval show_list $NAME \$$(toupper $NAME)_LIST
3531         ;;
3532         --help|-h) show_help
3533         ;;
3534         --quiet|-q) quiet=yes
3535         ;;
3536         --fatal-warnings) enable fatal_warnings
3537         ;;
3538         --libfuzzer=*)
3539             libfuzzer_path="$optval"
3540         ;;
3541         *)
3542             optname="${opt%%=*}"
3543             optname="${optname#--}"
3544             optname=$(echo "$optname" | sed 's/-/_/g')
3545             if is_in $optname $CMDLINE_SET; then
3546                 eval $optname='$optval'
3547             elif is_in $optname $CMDLINE_APPEND; then
3548                 append $optname "$optval"
3549             else
3550                 die_unknown $opt
3551             fi
3552         ;;
3553     esac
3554 done
3555
3556 for e in $env; do
3557     eval "export $e"
3558 done
3559
3560 # Mark specifically enabled, but normally autodetected libraries as requested.
3561 for lib in $AUTODETECT_LIBS; do
3562     enabled $lib && request $lib
3563 done
3564
3565 # Enable platform codecs by default.
3566 enable_weak audiotoolbox
3567
3568 # Enable hwaccels by default.
3569 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3570 enable_weak xlib
3571
3572 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3573
3574 disabled logging && logfile=/dev/null
3575
3576 die_license_disabled() {
3577     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3578 }
3579
3580 die_license_disabled_gpl() {
3581     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3582 }
3583
3584 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3585 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3586
3587 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3588 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3589
3590 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3591
3592 # Disable all the library-specific components if the library itself
3593 # is disabled, see AVCODEC_LIST and following _LIST variables.
3594
3595 disable_components(){
3596     disabled ${1} && disable $(
3597         eval components="\$$(toupper ${1})_COMPONENTS"
3598         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3599     )
3600 }
3601
3602 map 'disable_components $v' $LIBRARY_LIST
3603
3604 mkdir -p ffbuild
3605 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3606 set >> $logfile
3607
3608 test -n "$valgrind" && toolchain="valgrind-memcheck"
3609
3610 enabled ossfuzz && {
3611     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3612     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3613 }
3614
3615 case "$toolchain" in
3616     *-asan)
3617         cc_default="${toolchain%-asan}"
3618         add_cflags  -fsanitize=address
3619         add_ldflags -fsanitize=address
3620     ;;
3621     *-msan)
3622         cc_default="${toolchain%-msan}"
3623         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3624         add_ldflags -fsanitize=memory
3625     ;;
3626     *-tsan)
3627         cc_default="${toolchain%-tsan}"
3628         add_cflags  -fsanitize=thread -fPIE
3629         add_ldflags -fsanitize=thread -pie
3630         case "$toolchain" in
3631             gcc-tsan)
3632                 add_cflags  -fPIC
3633                 add_ldflags -fPIC
3634                 ;;
3635         esac
3636     ;;
3637     *-usan)
3638         cc_default="${toolchain%-usan}"
3639         add_cflags  -fsanitize=undefined
3640         add_ldflags -fsanitize=undefined
3641     ;;
3642     valgrind-*)
3643         target_exec_default="valgrind"
3644         case "$toolchain" in
3645             valgrind-massif)
3646                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3647                 ;;
3648             valgrind-memcheck)
3649                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3650                 ;;
3651         esac
3652     ;;
3653     msvc)
3654         # Check whether the current MSVC version needs the C99 converter.
3655         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3656         # support enough of C99 to build ffmpeg. Default to the new
3657         # behaviour if the regexp was unable to match anything, since this
3658         # successfully parses the version number of existing supported
3659         # versions that require the converter (MSVC 2010 and 2012).
3660         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3661         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3662             cc_default="cl"
3663             cxx_default="cl"
3664         else
3665             cc_default="c99wrap cl"
3666             cxx_default="c99wrap cl"
3667         fi
3668         ld_default="$source_path/compat/windows/mslink"
3669         nm_default="dumpbin -symbols"
3670         ar_default="lib"
3671         case "$arch" in
3672         arm*)
3673             as_default="armasm"
3674             ;;
3675         esac
3676         target_os_default="win32"
3677         # Use a relative path for TMPDIR. This makes sure all the
3678         # ffconf temp files are written with a relative path, avoiding
3679         # issues with msys/win32 path conversion for MSVC parameters
3680         # such as -Fo<file> or -out:<file>.
3681         TMPDIR=.
3682     ;;
3683     icl)
3684         cc_default="icl"
3685         ld_default="xilink"
3686         nm_default="dumpbin -symbols"
3687         ar_default="xilib"
3688         target_os_default="win32"
3689         TMPDIR=.
3690     ;;
3691     gcov)
3692         add_cflags  -fprofile-arcs -ftest-coverage
3693         add_ldflags -fprofile-arcs -ftest-coverage
3694     ;;
3695     llvm-cov)
3696         add_cflags -fprofile-arcs -ftest-coverage
3697         add_ldflags --coverage
3698     ;;
3699     hardened)
3700         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3701         add_cflags   -fno-strict-overflow -fstack-protector-all
3702         add_ldflags  -Wl,-z,relro -Wl,-z,now
3703         add_cflags   -fPIE
3704         add_ldexeflags -fPIE -pie
3705     ;;
3706     ?*)
3707         die "Unknown toolchain $toolchain"
3708     ;;
3709 esac
3710
3711 test -n "$cross_prefix" && enable cross_compile
3712
3713 if enabled cross_compile; then
3714     test -n "$arch" && test -n "$target_os" ||
3715         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3716 fi
3717
3718 ar_default="${cross_prefix}${ar_default}"
3719 cc_default="${cross_prefix}${cc_default}"
3720 cxx_default="${cross_prefix}${cxx_default}"
3721 nm_default="${cross_prefix}${nm_default}"
3722 pkg_config_default="${cross_prefix}${pkg_config_default}"
3723 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3724     ranlib_default="${cross_prefix}${ranlib_default} -D"
3725 else
3726     ranlib_default="${cross_prefix}${ranlib_default}"
3727 fi
3728 strip_default="${cross_prefix}${strip_default}"
3729 windres_default="${cross_prefix}${windres_default}"
3730
3731 sysinclude_default="${sysroot}/usr/include"
3732
3733 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3734     target_exec target_os yasmexe nvcc
3735 enabled cross_compile || host_cc_default=$cc
3736 set_default host_cc
3737
3738 pkg_config_fail_message=""
3739 if ! $pkg_config --version >/dev/null 2>&1; then
3740     warn "$pkg_config not found, library detection may fail."
3741     pkg_config=false
3742 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3743     pkg_config_fail_message="
3744 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3745 fi
3746
3747 if test $doxygen != $doxygen_default && \
3748   ! $doxygen --version >/dev/null 2>&1; then
3749     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3750 fi
3751
3752 exesuf() {
3753     case $1 in
3754         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3755     esac
3756 }
3757
3758 EXESUF=$(exesuf $target_os)
3759 HOSTEXESUF=$(exesuf $host_os)
3760
3761 # set temporary file name
3762 : ${TMPDIR:=$TEMPDIR}
3763 : ${TMPDIR:=$TMP}
3764 : ${TMPDIR:=/tmp}
3765
3766 if [ -n "$tempprefix" ] ; then
3767     mktemp(){
3768         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3769         echo "$tmpname"
3770         mkdir "$tmpname"
3771     }
3772 elif ! check_cmd mktemp -u XXXXXX; then
3773     # simple replacement for missing mktemp
3774     # NOT SAFE FOR GENERAL USE
3775     mktemp(){
3776         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3777         echo "$tmpname"
3778         mkdir "$tmpname"
3779     }
3780 fi
3781
3782 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3783     die "Unable to create temporary directory in $TMPDIR."
3784
3785 tmpfile(){
3786     tmp="${FFTMPDIR}/test"$2
3787     (set -C; exec > $tmp) 2> /dev/null ||
3788         die "Unable to create temporary file in $FFTMPDIR."
3789     eval $1=$tmp
3790 }
3791
3792 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3793 trap 'exit 2' INT
3794
3795 tmpfile TMPASM .asm
3796 tmpfile TMPC   .c
3797 tmpfile TMPCPP .cpp
3798 tmpfile TMPE   $EXESUF
3799 tmpfile TMPH   .h
3800 tmpfile TMPM   .m
3801 tmpfile TMPO   .o
3802 tmpfile TMPS   .S
3803 tmpfile TMPSH  .sh
3804 tmpfile TMPV   .ver
3805
3806 unset -f mktemp
3807
3808 chmod +x $TMPE
3809
3810 # make sure we can execute files in $TMPDIR
3811 cat > $TMPSH 2>> $logfile <<EOF
3812 #! /bin/sh
3813 EOF
3814 chmod +x $TMPSH >> $logfile 2>&1
3815 if ! $TMPSH >> $logfile 2>&1; then
3816     cat <<EOF
3817 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3818 variable to another directory and make sure that it is not mounted noexec.
3819 EOF
3820     die "Sanity test failed."
3821 fi
3822
3823 armasm_flags(){
3824     for flag; do
3825         case $flag in
3826             # Filter out MSVC cl.exe options from cflags that shouldn't
3827             # be passed to gas-preprocessor
3828             -M[TD]*)                                            ;;
3829             *)                  echo $flag                      ;;
3830         esac
3831    done
3832 }
3833
3834 ccc_flags(){
3835     for flag; do
3836         case $flag in
3837             -std=c99)           echo -c99                       ;;
3838             -mcpu=*)            echo -arch ${flag#*=}           ;;
3839             -mieee)             echo -ieee                      ;;
3840             -O*|-fast)          echo $flag                      ;;
3841             -fno-math-errno)    echo -assume nomath_errno       ;;
3842             -g)                 echo -g3                        ;;
3843             -Wall)              echo -msg_enable level2         ;;
3844             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3845             -Wl,*)              echo $flag                      ;;
3846             -f*|-W*)                                            ;;
3847             *)                  echo $flag                      ;;
3848         esac
3849    done
3850 }
3851
3852 cparser_flags(){
3853     for flag; do
3854         case $flag in
3855             -Wno-switch)             echo -Wno-switch-enum ;;
3856             -Wno-format-zero-length) ;;
3857             -Wdisabled-optimization) ;;
3858             -Wno-pointer-sign)       echo -Wno-other ;;
3859             *)                       echo $flag ;;
3860         esac
3861     done
3862 }
3863
3864 msvc_common_flags(){
3865     for flag; do
3866         case $flag in
3867             # In addition to specifying certain flags under the compiler
3868             # specific filters, they must be specified here as well or else the
3869             # generic catch all at the bottom will print the original flag.
3870             -Wall)                ;;
3871             -Wextra)              ;;
3872             -std=c99)             ;;
3873             # Common flags
3874             -fomit-frame-pointer) ;;
3875             -g)                   echo -Z7 ;;
3876             -fno-math-errno)      ;;
3877             -fno-common)          ;;
3878             -fno-signed-zeros)    ;;
3879             -fPIC)                ;;
3880             -mthumb)              ;;
3881             -march=*)             ;;
3882             -lz)                  echo zlib.lib ;;
3883             -lx264)               echo libx264.lib ;;
3884             -lstdc++)             ;;
3885             -l*)                  echo ${flag#-l}.lib ;;
3886             -LARGEADDRESSAWARE)   echo $flag ;;
3887             -L*)                  echo -libpath:${flag#-L} ;;
3888             *)                    echo $flag ;;
3889         esac
3890     done
3891 }
3892
3893 msvc_flags(){
3894     msvc_common_flags "$@"
3895     for flag; do
3896         case $flag in
3897             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3898                                        -wd4554 ;;
3899             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3900                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3901                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3902                                        -wd4307 \
3903                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3904         esac
3905     done
3906 }
3907
3908 icl_flags(){
3909     msvc_common_flags "$@"
3910     for flag; do
3911         case $flag in
3912             # Despite what Intel's documentation says -Wall, which is supported
3913             # on Windows, does enable remarks so disable them here.
3914             -Wall)                echo $flag -Qdiag-disable:remark ;;
3915             -std=c99)             echo -Qstd=c99 ;;
3916             -flto)                echo -ipo ;;
3917         esac
3918     done
3919 }
3920
3921 icc_flags(){
3922     for flag; do
3923         case $flag in
3924             -flto)                echo -ipo ;;
3925             *)                    echo $flag ;;
3926         esac
3927     done
3928 }
3929
3930 pgi_flags(){
3931     for flag; do
3932         case $flag in
3933             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3934             -fomit-frame-pointer) echo -Mnoframe ;;
3935             -g)                   echo -gopt ;;
3936             *)                    echo $flag ;;
3937         esac
3938     done
3939 }
3940
3941 suncc_flags(){
3942     for flag; do
3943         case $flag in
3944             -march=*|-mcpu=*)
3945                 case "${flag#*=}" in
3946                     native)                   echo -xtarget=native       ;;
3947                     v9|niagara)               echo -xarch=sparc          ;;
3948                     ultrasparc)               echo -xarch=sparcvis       ;;
3949                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3950                     i586|pentium)             echo -xchip=pentium        ;;
3951                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3952                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3953                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3954                     pentium4*)          echo -xtarget=pentium4           ;;
3955                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3956                     *-sse3)             echo -xarch=sse3                 ;;
3957                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3958                     bonnell)                   echo -xarch=ssse3         ;;
3959                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3960                     westmere)                  echo -xtarget=westmere    ;;
3961                     silvermont)                echo -xarch=sse4_2        ;;
3962                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3963                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3964                                                echo -xarch=avx           ;;
3965                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3966                     btver1)                    echo -xarch=amdsse4a      ;;
3967                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3968                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3969                     k8|opteron|athlon64|athlon-fx)
3970                                                echo -xarch=sse2a         ;;
3971                     athlon*)                   echo -xarch=pentium_proa  ;;
3972                 esac
3973                 ;;
3974             -std=c99)             echo -xc99              ;;
3975             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3976             -fPIC)                echo -KPIC -xcode=pic32 ;;
3977             -W*,*)                echo $flag              ;;
3978             -f*-*|-W*|-mimpure-text)                      ;;
3979             -shared)              echo -G                 ;;
3980             *)                    echo $flag              ;;
3981         esac
3982     done
3983 }
3984
3985 tms470_flags(){
3986     for flag; do
3987         case $flag in
3988             -march=*|-mcpu=*)
3989                 case "${flag#*=}" in
3990                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3991                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3992                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3993                     armv6*|arm11*)          echo -mv=6   ;;
3994                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3995                                             echo -mv=5e  ;;
3996                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3997                 esac
3998                 ;;
3999             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4000             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4001             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4002             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4003             -msoft-float)   echo --float_support=vfplib       ;;
4004             -O[0-3]|-mf=*)  echo $flag                        ;;
4005             -g)             echo -g -mn                       ;;
4006             -pds=*)         echo $flag                        ;;
4007             -D*|-I*)        echo $flag                        ;;
4008             --gcc|--abi=*)  echo $flag                        ;;
4009             -me)            echo $flag                        ;;
4010         esac
4011     done
4012 }
4013
4014 probe_cc(){
4015     pfx=$1
4016     _cc=$2
4017     first=$3
4018
4019     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4020     unset _ld_o _ldflags _ld_lib _ld_path
4021     unset _depflags _DEPCMD _DEPFLAGS
4022     _flags_filter=echo
4023
4024     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4025         true # no-op to avoid reading stdin in following checks
4026     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4027         _type=llvm_gcc
4028         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4029         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4030         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4031         _cflags_speed='-O3'
4032         _cflags_size='-Os'
4033     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4034         _type=gcc
4035         gcc_version=$($_cc --version | head -n1)
4036         gcc_basever=$($_cc -dumpversion)
4037         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4038         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4039         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4040         case $gcc_basever in
4041             2) ;;
4042             2.*) ;;
4043             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4044         esac
4045         if [ "$first" = true ]; then
4046             case $gcc_basever in
4047                 4.2*)
4048                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4049             esac
4050         fi
4051         _cflags_speed='-O3'
4052         _cflags_size='-Os'
4053     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4054         _type=icc
4055         _ident=$($_cc --version | head -n1)
4056         _depflags='-MMD'
4057         _cflags_speed='-O3'
4058         _cflags_size='-Os'
4059         _cflags_noopt='-O1'
4060         _flags_filter=icc_flags
4061     elif $_cc -v 2>&1 | grep -q xlc; then
4062         _type=xlc
4063         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4064         _cflags_speed='-O5'
4065         _cflags_size='-O5 -qcompact'
4066     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4067         _type=ccc
4068         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4069         _DEPFLAGS='-M'
4070         _cflags_speed='-fast'
4071         _cflags_size='-O1'
4072         _flags_filter=ccc_flags
4073     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4074         test -d "$sysroot" || die "No valid sysroot specified."
4075         _type=armcc
4076         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4077         armcc_conf="$PWD/armcc.conf"
4078         $_cc --arm_linux_configure                 \
4079              --arm_linux_config_file="$armcc_conf" \
4080              --configure_sysroot="$sysroot"        \
4081              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4082              die "Error creating armcc configuration file."
4083         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4084         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4085         as_default="${cross_prefix}gcc"
4086         _depflags='-MMD'
4087         _cflags_speed='-O3'
4088         _cflags_size='-Os'
4089     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4090         _type=tms470
4091         _ident=$($_cc -version | head -n1 | tr -s ' ')
4092         _flags='--gcc --abi=eabi -me'
4093         _cc_e='-ppl -fe=$@'
4094         _cc_o='-fe=$@'
4095         _depflags='-ppa -ppd=$(@:.o=.d)'
4096         _cflags_speed='-O3 -mf=5'
4097         _cflags_size='-O3 -mf=2'
4098         _flags_filter=tms470_flags
4099     elif $_cc -v 2>&1 | grep -q clang; then
4100         _type=clang
4101         _ident=$($_cc --version 2>/dev/null | head -n1)
4102         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4103         _cflags_speed='-O3'
4104         _cflags_size='-Oz'
4105     elif $_cc -V 2>&1 | grep -q Sun; then
4106         _type=suncc
4107         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4108         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4109         _DEPFLAGS='-xM1 -xc99'
4110         _ldflags='-std=c99'
4111         _cflags_speed='-O5'
4112         _cflags_size='-O5 -xspace'
4113         _flags_filter=suncc_flags
4114     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4115         _type=pathscale
4116         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4117         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4118         _cflags_speed='-O2'
4119         _cflags_size='-Os'
4120         _flags_filter='filter_out -Wdisabled-optimization'
4121     elif $_cc -v 2>&1 | grep -q Open64; then
4122         _type=open64
4123         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4124         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4125         _cflags_speed='-O2'
4126         _cflags_size='-Os'
4127         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4128     elif $_cc -V 2>&1 | grep -q Portland; then
4129         _type=pgi
4130         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4131         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4132         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4133         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4134         _cflags_noopt="-O"
4135         _flags_filter=pgi_flags
4136     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4137         _type=armasm
4138         _ident=$($_cc | head -n1)
4139         # 4509: "This form of conditional instruction is deprecated"
4140         _flags="-nologo -ignore 4509"
4141         _flags_filter=armasm_flags
4142     elif $_cc 2>&1 | grep -q Intel; then
4143         _type=icl
4144         _ident=$($_cc 2>&1 | head -n1)
4145         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4146         # Not only is O3 broken on 13.x+ but it is slower on all previous
4147         # versions (tested) as well.
4148         _cflags_speed="-O2"
4149         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4150         if $_cc 2>&1 | grep -q Linker; then
4151             _ld_o='-out:$@'
4152         else
4153             _ld_o='-Fe$@'
4154         fi
4155         _cc_o='-Fo$@'
4156         _cc_e='-P'
4157         _flags_filter=icl_flags
4158         _ld_lib='lib%.a'
4159         _ld_path='-libpath:'
4160         # -Qdiag-error to make icl error when seeing certain unknown arguments
4161         _flags='-nologo -Qdiag-error:4044,10157'
4162         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4163         # with MSVC which enables it by default.
4164         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4165         disable stripping
4166     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4167         # lld can emulate multiple different linkers; in ms link.exe mode,
4168         # the -? parameter gives the help output which contains an identifyable
4169         # string, while it gives an error in other modes.
4170         _type=lld-link
4171         # The link.exe mode doesn't have a switch for getting the version,
4172         # but we can force it back to gnu mode and get the version from there.
4173         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4174         _ld_o='-out:$@'
4175         _flags_filter=msvc_flags
4176         _ld_lib='lib%.a'
4177         _ld_path='-libpath:'
4178     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4179         _type=msvc
4180         _ident=$($_cc 2>&1 | head -n1)
4181         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4182         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4183         _cflags_speed="-O2"
4184         _cflags_size="-O1"
4185         _cflags_noopt="-O1"
4186         if $_cc -nologo- 2>&1 | grep -q Linker; then
4187             _ld_o='-out:$@'
4188         else
4189             _ld_o='-Fe$@'
4190         fi
4191         _cc_o='-Fo$@'
4192         _cc_e='-P -Fi$@'
4193         _flags_filter=msvc_flags
4194         _ld_lib='lib%.a'
4195         _ld_path='-libpath:'
4196         _flags='-nologo'
4197         disable stripping
4198     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4199         _type=cparser
4200         _ident=$($_cc --version | head -n1)
4201         _depflags='-MMD'
4202         _cflags_speed='-O4'
4203         _cflags_size='-O2'
4204         _flags_filter=cparser_flags
4205     fi
4206
4207     eval ${pfx}_type=\$_type
4208     eval ${pfx}_ident=\$_ident
4209 }
4210
4211 set_ccvars(){
4212     eval ${1}_C=\${_cc_c-\${${1}_C}}
4213     eval ${1}_E=\${_cc_e-\${${1}_E}}
4214     eval ${1}_O=\${_cc_o-\${${1}_O}}
4215
4216     if [ -n "$_depflags" ]; then
4217         eval ${1}_DEPFLAGS=\$_depflags
4218     else
4219         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4220         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4221         eval DEP${1}FLAGS=\$_flags
4222     fi
4223 }
4224
4225 probe_cc cc "$cc" "true"
4226 cflags_filter=$_flags_filter
4227 cflags_speed=$_cflags_speed
4228 cflags_size=$_cflags_size
4229 cflags_noopt=$_cflags_noopt
4230 add_cflags $_flags $_cflags
4231 cc_ldflags=$_ldflags
4232 set_ccvars CC
4233 set_ccvars CXX
4234
4235 probe_cc hostcc "$host_cc"
4236 host_cflags_filter=$_flags_filter
4237 host_cflags_speed=$_cflags_speed
4238 add_host_cflags  $_flags $_cflags
4239 set_ccvars HOSTCC
4240
4241 test -n "$cc_type" && enable $cc_type ||
4242     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4243
4244 : ${as_default:=$cc}
4245 : ${objcc_default:=$cc}
4246 : ${dep_cc_default:=$cc}
4247 : ${ld_default:=$cc}
4248 : ${host_ld_default:=$host_cc}
4249 set_default ar as objcc dep_cc ld ln_s host_ld windres
4250
4251 probe_cc as "$as"
4252 asflags_filter=$_flags_filter
4253 add_asflags $_flags $_cflags
4254 set_ccvars AS
4255
4256 probe_cc objcc "$objcc"
4257 objcflags_filter=$_flags_filter
4258 add_objcflags $_flags $_cflags
4259 set_ccvars OBJC
4260
4261 probe_cc ld "$ld"
4262 ldflags_filter=$_flags_filter
4263 add_ldflags $_flags $_ldflags
4264 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4265 LD_O=${_ld_o-$LD_O}
4266 LD_LIB=${_ld_lib-$LD_LIB}
4267 LD_PATH=${_ld_path-$LD_PATH}
4268
4269 probe_cc hostld "$host_ld"
4270 host_ldflags_filter=$_flags_filter
4271 add_host_ldflags $_flags $_ldflags
4272 HOSTLD_O=${_ld_o-$HOSTLD_O}
4273
4274 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4275     probe_cc depcc "$dep_cc"
4276     CCDEP=${_DEPCMD:-$DEPCMD}
4277     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4278     DEPCCFLAGS=$_flags
4279 fi
4280
4281 if $ar 2>&1 | grep -q Microsoft; then
4282     arflags="-nologo"
4283     ar_o='-out:$@'
4284 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4285     arflags="rq"
4286     ar_o='$@'
4287 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4288     arflags='-Xany -r -c'
4289     ar_o='$@'
4290 elif $ar 2>&1 | grep -q "\[D\] "; then
4291     arflags="rcD"
4292     ar_o='$@'
4293 else
4294     arflags="rc"
4295     ar_o='$@'
4296 fi
4297
4298 add_cflags $extra_cflags
4299 add_cxxflags $extra_cxxflags
4300 add_objcflags $extra_objcflags
4301 add_asflags $extra_cflags
4302
4303 if test -n "$sysroot"; then
4304     case "$cc_type" in
4305         gcc|llvm_gcc|clang)
4306             add_cppflags --sysroot="$sysroot"
4307             add_ldflags --sysroot="$sysroot"
4308 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4309             add_cppflags -isysroot "$sysroot"
4310             add_ldflags -isysroot "$sysroot"
4311         ;;
4312         tms470)
4313             add_cppflags -I"$sysinclude"
4314             add_ldflags  --sysroot="$sysroot"
4315         ;;
4316     esac
4317 fi
4318
4319 if test "$cpu" = host; then
4320     enabled cross_compile &&
4321         die "--cpu=host makes no sense when cross-compiling."
4322
4323     case "$cc_type" in
4324         gcc|llvm_gcc)
4325             check_native(){
4326                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4327                 sed -n "/cc1.*$1=/{
4328                             s/.*$1=\\([^ ]*\\).*/\\1/
4329                             p
4330                             q
4331                         }" $TMPE
4332             }
4333             cpu=$(check_native -march || check_native -mcpu)
4334         ;;
4335         clang)
4336             check_native(){
4337                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4338                 sed -n "/cc1.*-target-cpu /{
4339                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4340                             p
4341                             q
4342                         }" $TMPE
4343             }
4344             cpu=$(check_native -march)
4345         ;;
4346     esac
4347
4348     test "${cpu:-host}" = host &&
4349         die "--cpu=host not supported with compiler $cc"
4350 fi
4351
4352 # Deal with common $arch aliases
4353 case "$arch" in
4354     aarch64|arm64)
4355         arch="aarch64"
4356     ;;
4357     arm*|iPad*|iPhone*)
4358         arch="arm"
4359     ;;
4360     mips*|IP*)
4361         case "$arch" in
4362         *el)
4363             add_cppflags -EL
4364             add_ldflags -EL
4365         ;;
4366         *eb)
4367             add_cppflags -EB
4368             add_ldflags -EB
4369         ;;
4370         esac
4371         arch="mips"
4372     ;;
4373     parisc*|hppa*)
4374         arch="parisc"
4375     ;;
4376     "Power Macintosh"|ppc*|powerpc*)
4377         arch="ppc"
4378     ;;
4379     s390|s390x)
4380         arch="s390"
4381     ;;
4382     sh4|sh)
4383         arch="sh4"
4384     ;;
4385     sun4*|sparc*)
4386         arch="sparc"
4387     ;;
4388     tilegx|tile-gx)
4389         arch="tilegx"
4390     ;;
4391     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4392         arch="x86"
4393     ;;
4394 esac
4395
4396 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4397 enable $arch
4398
4399 # Add processor-specific flags
4400 if enabled aarch64; then
4401
4402     case $cpu in
4403         armv*)
4404             cpuflags="-march=$cpu"
4405         ;;
4406         *)
4407             cpuflags="-mcpu=$cpu"
4408         ;;
4409     esac
4410
4411 elif enabled alpha; then
4412
4413     cpuflags="-mcpu=$cpu"
4414
4415 elif enabled arm; then
4416
4417     check_arm_arch() {
4418         check_cpp_condition stddef.h \
4419             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4420             $cpuflags
4421     }
4422
4423     probe_arm_arch() {
4424         if   check_arm_arch 4;        then echo armv4
4425         elif check_arm_arch 4T;       then echo armv4t
4426         elif check_arm_arch 5;        then echo armv5
4427         elif check_arm_arch 5E;       then echo armv5e
4428         elif check_arm_arch 5T;       then echo armv5t
4429         elif check_arm_arch 5TE;      then echo armv5te
4430         elif check_arm_arch 5TEJ;     then echo armv5te
4431         elif check_arm_arch 6;        then echo armv6
4432         elif check_arm_arch 6J;       then echo armv6j
4433         elif check_arm_arch 6K;       then echo armv6k
4434         elif check_arm_arch 6Z;       then echo armv6z
4435         elif check_arm_arch 6ZK;      then echo armv6zk
4436         elif check_arm_arch 6T2;      then echo armv6t2
4437         elif check_arm_arch 7;        then echo armv7
4438         elif check_arm_arch 7A  7_A;  then echo armv7-a
4439         elif check_arm_arch 7S;       then echo armv7-a
4440         elif check_arm_arch 7R  7_R;  then echo armv7-r
4441         elif check_arm_arch 7M  7_M;  then echo armv7-m
4442         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4443         elif check_arm_arch 8A  8_A;  then echo armv8-a
4444         fi
4445     }
4446
4447     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4448
4449     case $cpu in
4450         armv*)
4451             cpuflags="-march=$cpu"
4452             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4453         ;;
4454         *)
4455             cpuflags="-mcpu=$cpu"
4456             case $cpu in
4457                 cortex-a*)                               subarch=armv7a  ;;
4458                 cortex-r*)                               subarch=armv7r  ;;
4459                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4460                 arm11*)                                  subarch=armv6   ;;
4461                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4462                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4463                 *)                             subarch=$(probe_arm_arch) ;;
4464             esac
4465         ;;
4466     esac
4467
4468     case "$subarch" in
4469         armv5t*)    enable fast_clz                ;;
4470         armv[6-8]*)
4471             enable fast_clz
4472             disabled fast_unaligned || enable fast_unaligned
4473             ;;
4474     esac
4475
4476 elif enabled avr32; then
4477
4478     case $cpu in
4479         ap7[02]0[0-2])
4480             subarch="avr32_ap"
4481             cpuflags="-mpart=$cpu"
4482         ;;
4483         ap)
4484             subarch="avr32_ap"
4485             cpuflags="-march=$cpu"
4486         ;;
4487         uc3[ab]*)
4488             subarch="avr32_uc"
4489             cpuflags="-mcpu=$cpu"
4490         ;;
4491         uc)
4492             subarch="avr32_uc"
4493             cpuflags="-march=$cpu"
4494         ;;
4495     esac
4496
4497 elif enabled bfin; then
4498
4499     cpuflags="-mcpu=$cpu"
4500
4501 elif enabled mips; then
4502
4503     cpuflags="-march=$cpu"
4504
4505     if [ "$cpu" != "generic" ]; then
4506         disable mips32r2
4507         disable mips32r5
4508         disable mips64r2
4509         disable mips32r6
4510         disable mips64r6
4511         disable loongson2
4512         disable loongson3
4513
4514         case $cpu in
4515             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4516                 enable mips32r2
4517                 disable msa
4518             ;;
4519             p5600|i6400|p6600)
4520                 disable mipsdsp
4521                 disable mipsdspr2
4522             ;;
4523             loongson*)
4524                 enable loongson2
4525                 enable loongson3
4526                 enable local_aligned_8 local_aligned_16 local_aligned_32
4527                 enable simd_align_16
4528                 enable fast_64bit
4529                 enable fast_clz
4530                 enable fast_cmov
4531                 enable fast_unaligned
4532                 disable aligned_stack
4533                 disable mipsfpu
4534                 disable mipsdsp
4535                 disable mipsdspr2
4536                 case $cpu in
4537                     loongson3*)
4538                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4539                     ;;
4540                     loongson2e)
4541                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4542                     ;;
4543                     loongson2f)
4544                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4545                     ;;
4546                 esac
4547             ;;
4548             *)
4549                 # Unknown CPU. Disable everything.
4550                 warn "unknown CPU. Disabling all MIPS optimizations."
4551                 disable mipsfpu
4552                 disable mipsdsp
4553                 disable mipsdspr2
4554                 disable msa
4555                 disable mmi
4556             ;;
4557         esac
4558
4559         case $cpu in
4560             24kc)
4561                 disable mipsfpu
4562                 disable mipsdsp
4563                 disable mipsdspr2
4564             ;;
4565             24kf*)
4566                 disable mipsdsp
4567                 disable mipsdspr2
4568             ;;
4569             24kec|34kc|1004kc)
4570                 disable mipsfpu
4571                 disable mipsdspr2
4572             ;;
4573             24kef*|34kf*|1004kf*)
4574                 disable mipsdspr2
4575             ;;
4576             74kc)
4577                 disable mipsfpu
4578             ;;
4579             p5600)
4580                 enable mips32r5
4581                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4582             ;;
4583             i6400)
4584                 enable mips64r6
4585                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4586             ;;
4587             p6600)
4588                 enable mips64r6
4589                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4590             ;;
4591         esac
4592     else
4593         # We do not disable anything. Is up to the user to disable the unwanted features.
4594         warn 'generic cpu selected'
4595     fi
4596
4597 elif enabled ppc; then
4598
4599     disable ldbrx
4600
4601     case $(tolower $cpu) in
4602         601|ppc601|powerpc601)
4603             cpuflags="-mcpu=601"
4604             disable altivec
4605         ;;
4606         603*|ppc603*|powerpc603*)
4607             cpuflags="-mcpu=603"
4608             disable altivec
4609         ;;
4610         604*|ppc604*|powerpc604*)
4611             cpuflags="-mcpu=604"
4612             disable altivec
4613         ;;
4614         g3|75*|ppc75*|powerpc75*)
4615             cpuflags="-mcpu=750"
4616             disable altivec
4617         ;;
4618         g4|745*|ppc745*|powerpc745*)
4619             cpuflags="-mcpu=7450"
4620             disable vsx
4621         ;;
4622         74*|ppc74*|powerpc74*)
4623             cpuflags="-mcpu=7400"
4624             disable vsx
4625         ;;
4626         g5|970|ppc970|powerpc970)
4627             cpuflags="-mcpu=970"
4628             disable vsx
4629         ;;
4630         power[3-6]*)
4631             cpuflags="-mcpu=$cpu"
4632             disable vsx
4633         ;;
4634         power[7-8]*)
4635             cpuflags="-mcpu=$cpu"
4636         ;;
4637         cell)
4638             cpuflags="-mcpu=cell"
4639             enable ldbrx
4640             disable vsx
4641         ;;
4642         e500mc)
4643             cpuflags="-mcpu=e500mc"
4644             disable altivec
4645         ;;
4646         e500v2)
4647             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4648             disable altivec
4649             disable dcbzl
4650         ;;
4651         e500)
4652             cpuflags="-mcpu=8540 -mhard-float"
4653             disable altivec
4654             disable dcbzl
4655         ;;
4656     esac
4657
4658 elif enabled sparc; then
4659
4660     case $cpu in
4661         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4662             cpuflags="-mcpu=$cpu"
4663         ;;
4664         ultrasparc*|niagara[234])
4665             cpuflags="-mcpu=$cpu"
4666         ;;
4667     esac
4668
4669 elif enabled x86; then
4670
4671     case $cpu in
4672         i[345]86|pentium)
4673             cpuflags="-march=$cpu"
4674             disable i686
4675             disable mmx
4676         ;;
4677         # targets that do NOT support nopl and conditional mov (cmov)
4678         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4679             cpuflags="-march=$cpu"
4680             disable i686
4681         ;;
4682         # targets that do support nopl and conditional mov (cmov)
4683         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4684         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4685         |amdfam10|barcelona|b[dt]ver*|znver*)
4686             cpuflags="-march=$cpu"
4687             enable i686
4688             enable fast_cmov
4689         ;;
4690         # targets that do support conditional mov but on which it's slow
4691         pentium4|pentium4m|prescott|nocona)
4692             cpuflags="-march=$cpu"
4693             enable i686
4694             disable fast_cmov
4695         ;;
4696     esac
4697
4698 fi
4699
4700 if [ "$cpu" != generic ]; then
4701     add_cflags  $cpuflags
4702     add_asflags $cpuflags
4703     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4704 fi
4705
4706 # compiler sanity check
4707 check_exec <<EOF
4708 int main(void){ return 0; }
4709 EOF
4710 if test "$?" != 0; then
4711     echo "$cc is unable to create an executable file."
4712     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4713         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4714         echo "Only do this if you know what cross compiling means."
4715     fi
4716     die "C compiler test failed."
4717 fi
4718
4719 add_cppflags -D_ISOC99_SOURCE
4720 add_cxxflags -D__STDC_CONSTANT_MACROS
4721 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4722
4723 # some compilers silently accept -std=c11, so we also need to check that the
4724 # version macro is defined properly
4725 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4726     add_cflags -std=c11
4727 else
4728     check_cflags -std=c99
4729 fi
4730
4731 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4732 #include <stdlib.h>
4733 EOF
4734 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4735 #include <stdlib.h>
4736 EOF
4737
4738 add_host_cppflags -D_ISOC99_SOURCE
4739 check_host_cflags -std=c99
4740 check_host_cflags -Wall
4741 check_host_cflags $host_cflags_speed
4742
4743 check_64bit(){
4744     arch32=$1
4745     arch64=$2
4746     expr=$3
4747     check_code cc "" "int test[2*($expr) - 1]" &&
4748         subarch=$arch64 || subarch=$arch32
4749 }
4750
4751 case "$arch" in
4752     aarch64|alpha|ia64)
4753         spic=$shared
4754     ;;
4755     mips)
4756         check_64bit mips mips64 '_MIPS_SIM > 1'
4757         spic=$shared
4758     ;;
4759     parisc)
4760         check_64bit parisc parisc64 'sizeof(void *) > 4'
4761         spic=$shared
4762     ;;
4763     ppc)
4764         check_64bit ppc ppc64 'sizeof(void *) > 4'
4765         spic=$shared
4766     ;;
4767     s390)
4768         check_64bit s390 s390x 'sizeof(void *) > 4'
4769         spic=$shared
4770     ;;
4771     sparc)
4772         check_64bit sparc sparc64 'sizeof(void *) > 4'
4773         spic=$shared
4774     ;;
4775     x86)
4776         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4777         # Treat x32 as x64 for now. Note it also needs spic=$shared
4778         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4779             subarch=x86_64
4780         if test "$subarch" = "x86_64"; then
4781             spic=$shared
4782         fi
4783     ;;
4784     ppc)
4785         check_cc <<EOF && subarch="ppc64"
4786         int test[(int)sizeof(char*) - 7];
4787 EOF
4788     ;;
4789 esac
4790
4791 enable $subarch
4792 enabled spic && enable_weak pic
4793
4794 # OS specific
4795 case $target_os in
4796     aix)
4797         SHFLAGS=-shared
4798         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4799         enabled shared && add_ldflags -Wl,-brtl
4800         ;;
4801     android)
4802         disable symver
4803         enable section_data_rel_ro
4804         SLIB_INSTALL_NAME='$(SLIBNAME)'
4805         SLIB_INSTALL_LINKS=
4806         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4807         ;;
4808     haiku)
4809         prefix_default="/boot/common"
4810         network_extralibs="-lnetwork"
4811         host_extralibs=
4812         ;;
4813     sunos)
4814         SHFLAGS='-shared -Wl,-h,$$(@F)'
4815         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4816         network_extralibs="-lsocket -lnsl"
4817         add_cppflags -D__EXTENSIONS__
4818         # When using suncc to build, the Solaris linker will mark
4819         # an executable with each instruction set encountered by
4820         # the Solaris assembler.  As our libraries contain their own
4821         # guards for processor-specific code, instead suppress
4822         # generation of the HWCAPS ELF section on Solaris x86 only.
4823         enabled_all suncc x86 &&
4824             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4825             add_ldflags -Wl,-M,mapfile
4826         nm_default='nm -P -g'
4827         version_script='-M'
4828         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4829         ;;
4830     netbsd)
4831         disable symver
4832         oss_indev_extralibs="-lossaudio"
4833         oss_outdev_extralibs="-lossaudio"
4834         enabled gcc || check_ldflags -Wl,-zmuldefs
4835         ;;
4836     openbsd|bitrig)
4837         disable symver
4838         SHFLAGS='-shared'
4839         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4840         SLIB_INSTALL_LINKS=
4841         oss_indev_extralibs="-lossaudio"
4842         oss_outdev_extralibs="-lossaudio"
4843         ;;
4844     dragonfly)
4845         disable symver
4846         ;;
4847     freebsd)
4848         ;;
4849     bsd/os)
4850         add_extralibs -lpoll -lgnugetopt
4851         strip="strip -d"
4852         ;;
4853     darwin)
4854         enabled ppc && add_asflags -force_cpusubtype_ALL
4855         install_name_dir_default='$(SHLIBDIR)'
4856         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4857         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4858         strip="${strip} -x"
4859         add_ldflags -Wl,-dynamic,-search_paths_first
4860         SLIBSUF=".dylib"
4861         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4862         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4863         objformat="macho"
4864         enabled x86_64 && objformat="macho64"
4865         enabled_any pic shared x86_64 ||
4866             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4867         check_header dispatch/dispatch.h &&
4868             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4869         version_script='-exported_symbols_list'
4870         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4871         ;;
4872     msys*)
4873         die "Native MSYS builds are discouraged, please use the MINGW environment."
4874         ;;
4875     mingw32*|mingw64*)
4876         if test $target_os = "mingw32ce"; then
4877             disable network
4878         else
4879             target_os=mingw32
4880         fi
4881         LIBTARGET=i386
4882         if enabled x86_64; then
4883             LIBTARGET="i386:x86-64"
4884         elif enabled arm; then
4885             LIBTARGET=arm-wince
4886         fi
4887         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4888         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4889         shlibdir_default="$bindir_default"
4890         SLIBPREF=""
4891         SLIBSUF=".dll"
4892         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4893         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4894         dlltool="${cross_prefix}dlltool"
4895         if check_cmd lib.exe -list; then
4896             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4897             if enabled x86_64; then
4898                 LIBTARGET=x64
4899             fi
4900         elif check_cmd $dlltool --version; then
4901             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4902         fi
4903         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4904