9e9fbf29a4695cd7efe16aacc543acd36735afa4
[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   --disable-autodetect     disable automatically detected external libraries [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --disable-alsa           disable ALSA support [autodetect]
205   --enable-avisynth        enable reading of AviSynth script files [no]
206   --disable-bzlib          disable bzlib [autodetect]
207   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
208   --enable-frei0r          enable frei0r video filtering [no]
209   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
210                            if openssl, librtmp or gmp is not used [no]
211   --enable-gmp             enable gmp, needed for rtmp(t)e support
212                            if openssl or librtmp is not used [no]
213   --enable-gnutls          enable gnutls, needed for https support
214                            if openssl is not used [no]
215   --disable-iconv          disable iconv [autodetect]
216   --enable-jni             enable JNI support [no]
217   --enable-ladspa          enable LADSPA audio filtering [no]
218   --enable-libass          enable libass subtitles rendering,
219                            needed for subtitles and ass filter [no]
220   --enable-libbluray       enable BluRay reading using libbluray [no]
221   --enable-libbs2b         enable bs2b DSP library [no]
222   --enable-libcaca         enable textual display using libcaca [no]
223   --enable-libcelt         enable CELT decoding via libcelt [no]
224   --enable-libcdio         enable audio CD grabbing with libcdio [no]
225   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
226                            and libraw1394 [no]
227   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
228   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
229   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
230   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
231   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
232   --enable-libgme          enable Game Music Emu via libgme [no]
233   --enable-libgsm          enable GSM de/encoding via libgsm [no]
234   --enable-libiec61883     enable iec61883 via libiec61883 [no]
235   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
236   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
237   --enable-libmodplug      enable ModPlug via libmodplug [no]
238   --enable-libmp3lame      enable MP3 encoding via libmp3lame [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-libshine        enable fixed-point MP3 encoding via libshine [no]
251   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
252   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
253   --enable-libsoxr         enable Include libsoxr resampling [no]
254   --enable-libspeex        enable Speex de/encoding via libspeex [no]
255   --enable-libssh          enable SFTP protocol via libssh [no]
256   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
257   --enable-libtheora       enable Theora encoding via libtheora [no]
258   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
259   --enable-libv4l2         enable libv4l2/v4l-utils [no]
260   --enable-libvidstab      enable video stabilization using vid.stab [no]
261   --enable-libvmaf         enable vmaf filter via libvmaf [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-libndi_newtek   enable Newteck NDI I/O support [no]
283   --enable-mediacodec      enable Android MediaCodec support [no]
284   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
285   --enable-openal          enable OpenAL 1.1 capture support [no]
286   --enable-opencl          enable OpenCL code
287   --enable-opengl          enable OpenGL rendering [no]
288   --enable-openssl         enable openssl, needed for https support
289                            if gnutls is not used [no]
290   --disable-schannel       disable SChannel SSP, needed for TLS support on
291                            Windows if openssl and gnutls are not used [autodetect]
292   --disable-sdl2           disable sdl2 [autodetect]
293   --disable-securetransport disable Secure Transport, needed for TLS support
294                            on OSX if openssl and gnutls are not used [autodetect]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298   The following libraries provide various hardware acceleration features:
299   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
300   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
301   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
302   --disable-cuvid          disable Nvidia CUVID support [autodetect]
303   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
304   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
305   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
306   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
307   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
308   --disable-nvenc          disable Nvidia video encoding code [autodetect]
309   --enable-omx             enable OpenMAX IL code [no]
310   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
311   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
312   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
313   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
314   --disable-videotoolbox   disable VideoToolbox code [autodetect]
315
316 Toolchain options:
317   --arch=ARCH              select architecture [$arch]
318   --cpu=CPU                select the minimum required CPU (affects
319                            instruction selection, may crash on older CPUs)
320   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
321   --progs-suffix=SUFFIX    program name suffix []
322   --enable-cross-compile   assume a cross-compiler is used
323   --sysroot=PATH           root of cross-build tree
324   --sysinclude=PATH        location of cross-build system headers
325   --target-os=OS           compiler targets OS [$target_os]
326   --target-exec=CMD        command to run executables on target
327   --target-path=DIR        path to view of build directory on target
328   --target-samples=DIR     path to samples directory on target
329   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
330   --toolchain=NAME         set tool defaults according to NAME
331   --nm=NM                  use nm tool NM [$nm_default]
332   --ar=AR                  use archive tool AR [$ar_default]
333   --as=AS                  use assembler AS [$as_default]
334   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
335   --strip=STRIP            use strip tool STRIP [$strip_default]
336   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
337   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
338   --cc=CC                  use C compiler CC [$cc_default]
339   --cxx=CXX                use C compiler CXX [$cxx_default]
340   --objcc=OCC              use ObjC compiler OCC [$cc_default]
341   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
342   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
343   --ld=LD                  use linker LD [$ld_default]
344   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
345   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
346   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
347   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
348   --host-cc=HOSTCC         use host C compiler HOSTCC
349   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
350   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
351   --host-ld=HOSTLD         use host linker HOSTLD
352   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
353   --host-libs=HLIBS        use libs HLIBS when linking for host
354   --host-os=OS             compiler host OS [$target_os]
355   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
356   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
357   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
358   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
359   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
360   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
361   --extra-libs=ELIBS       add ELIBS [$ELIBS]
362   --extra-version=STRING   version string suffix []
363   --optflags=OPTFLAGS      override optimization-related compiler flags
364   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
365   --build-suffix=SUFFIX    library name suffix []
366   --enable-pic             build position-independent code
367   --enable-thumb           compile for Thumb instruction set
368   --enable-lto             use link-time optimization
369   --env="ENV=override"     override the environment variables
370
371 Advanced options (experts only):
372   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
373   --custom-allocator=NAME  use a supported custom allocator
374   --disable-symver         disable symbol versioning
375   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
376   --disable-safe-bitstream-reader
377                            disable buffer boundary checking in bitreaders
378                            (faster, but may crash)
379   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
380
381 Optimization options (experts only):
382   --disable-asm            disable all assembly optimizations
383   --disable-altivec        disable AltiVec optimizations
384   --disable-vsx            disable VSX optimizations
385   --disable-power8         disable POWER8 optimizations
386   --disable-amd3dnow       disable 3DNow! optimizations
387   --disable-amd3dnowext    disable 3DNow! extended optimizations
388   --disable-mmx            disable MMX optimizations
389   --disable-mmxext         disable MMXEXT optimizations
390   --disable-sse            disable SSE optimizations
391   --disable-sse2           disable SSE2 optimizations
392   --disable-sse3           disable SSE3 optimizations
393   --disable-ssse3          disable SSSE3 optimizations
394   --disable-sse4           disable SSE4 optimizations
395   --disable-sse42          disable SSE4.2 optimizations
396   --disable-avx            disable AVX optimizations
397   --disable-xop            disable XOP optimizations
398   --disable-fma3           disable FMA3 optimizations
399   --disable-fma4           disable FMA4 optimizations
400   --disable-avx2           disable AVX2 optimizations
401   --disable-aesni          disable AESNI optimizations
402   --disable-armv5te        disable armv5te optimizations
403   --disable-armv6          disable armv6 optimizations
404   --disable-armv6t2        disable armv6t2 optimizations
405   --disable-vfp            disable VFP optimizations
406   --disable-neon           disable NEON optimizations
407   --disable-inline-asm     disable use of inline assembly
408   --disable-x86asm         disable use of standalone x86 assembly
409   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
410   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
411   --disable-msa            disable MSA optimizations
412   --disable-mipsfpu        disable floating point MIPS optimizations
413   --disable-mmi            disable Loongson SIMD optimizations
414   --disable-fast-unaligned consider unaligned accesses slow
415
416 Developer options (useful when working on FFmpeg itself):
417   --disable-debug          disable debugging symbols
418   --enable-debug=LEVEL     set the debug level [$debuglevel]
419   --disable-optimizations  disable compiler optimizations
420   --enable-extra-warnings  enable more compiler warnings
421   --disable-stripping      disable stripping of executables and shared libraries
422   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
423                            2 causes a slowdown at runtime.
424   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
425   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
426                            leaks and errors, using the specified valgrind binary.
427                            Cannot be combined with --target-exec
428   --enable-ftrapv          Trap arithmetic overflows
429   --samples=PATH           location of test samples for FATE, if not set use
430                            \$FATE_SAMPLES at make invocation time.
431   --enable-neon-clobber-test check NEON registers for clobbering (should be
432                            used only for debugging purposes)
433   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
434                            should be used only for debugging purposes)
435   --enable-random          randomly enable/disable components
436   --disable-random
437   --enable-random=LIST     randomly enable/disable specific components or
438   --disable-random=LIST    component groups. LIST is a comma-separated list
439                            of NAME[:PROB] entries where NAME is a component
440                            (group) and PROB the probability associated with
441                            NAME (default 0.5).
442   --random-seed=VALUE      seed value for --enable/disable-random
443   --disable-valgrind-backtrace do not print a backtrace under Valgrind
444                            (only applies to --disable-optimizations builds)
445   --enable-osfuzz          Enable building fuzzer tool
446   --libfuzzer=PATH         path to libfuzzer
447   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
448                            in the name) of tests whose result is ignored
449
450 NOTE: Object files are built at the place where configure is launched.
451 EOF
452   exit 0
453 }
454
455 quotes='""'
456 if test -t 1 && which tput >/dev/null 2>&1; then
457     ncolors=$(tput colors)
458     if test -n "$ncolors" && test $ncolors -ge 8; then
459         bold_color=$(tput bold)
460         warn_color=$(tput setaf 3)
461         error_color=$(tput setaf 1)
462         reset_color=$(tput sgr0)
463     fi
464     # 72 used instead of 80 since that's the default of pr
465     ncols=$(tput cols)
466 fi
467 : ${ncols:=72}
468
469 log(){
470     echo "$@" >> $logfile
471 }
472
473 log_file(){
474     log BEGIN $1
475     pr -n -t $1 >> $logfile
476     log END $1
477 }
478
479 warn(){
480     log "WARNING: $*"
481     WARNINGS="${WARNINGS}WARNING: $*\n"
482 }
483
484 die(){
485     log "$@"
486     echo "$error_color$bold_color$@$reset_color"
487     cat <<EOF
488
489 If you think configure made a mistake, make sure you are using the latest
490 version from Git.  If the latest version fails, report the problem to the
491 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
492 EOF
493     if disabled logging; then
494         cat <<EOF
495 Rerun configure with logging enabled (do not use --disable-logging), and
496 include the log this produces with your report.
497 EOF
498     else
499         cat <<EOF
500 Include the log file "$logfile" produced by configure as this will help
501 solve the problem.
502 EOF
503     fi
504     exit 1
505 }
506
507 # Avoid locale weirdness, besides we really just want to translate ASCII.
508 toupper(){
509     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
510 }
511
512 tolower(){
513     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
514 }
515
516 c_escape(){
517     echo "$*" | sed 's/["\\]/\\\0/g'
518 }
519
520 sh_quote(){
521     v=$(echo "$1" | sed "s/'/'\\\\''/g")
522     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
523     echo "$v"
524 }
525
526 cleanws(){
527     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
528 }
529
530 filter(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) printf '%s ' $v ;; esac"
535     done
536 }
537
538 filter_out(){
539     pat=$1
540     shift
541     for v; do
542         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
543     done
544 }
545
546 map(){
547     m=$1
548     shift
549     for v; do eval $m; done
550 }
551
552 add_suffix(){
553     suffix=$1
554     shift
555     for v; do echo ${v}${suffix}; done
556 }
557
558 set_all(){
559     value=$1
560     shift
561     for var in $*; do
562         eval $var=$value
563     done
564 }
565
566 set_weak(){
567     value=$1
568     shift
569     for var; do
570         eval : \${$var:=$value}
571     done
572 }
573
574 sanitize_var_name(){
575     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
576 }
577
578 set_safe(){
579     var=$1
580     shift
581     eval $(sanitize_var_name "$var")='$*'
582 }
583
584 get_safe(){
585     eval echo \$$(sanitize_var_name "$1")
586 }
587
588 pushvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:=0}
591         eval ${pvar}_${level}="\$$pvar"
592         eval ${pvar}_level=$(($level+1))
593     done
594 }
595
596 popvar(){
597     for pvar in $*; do
598         eval level=\${${pvar}_level:-0}
599         test $level = 0 && continue
600         eval level=$(($level-1))
601         eval $pvar="\${${pvar}_${level}}"
602         eval ${pvar}_level=$level
603         eval unset ${pvar}_${level}
604     done
605 }
606
607 request(){
608     for var in $*; do
609         eval ${var}_requested=yes
610         eval $var=
611     done
612 }
613
614 enable(){
615     set_all yes $*
616 }
617
618 disable(){
619     set_all no $*
620 }
621
622 enable_weak(){
623     set_weak yes $*
624 }
625
626 disable_weak(){
627     set_weak no $*
628 }
629
630 enable_safe(){
631     for var; do
632         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
633     done
634 }
635
636 disable_safe(){
637     for var; do
638         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
639     done
640 }
641
642 do_enable_deep(){
643     for var; do
644         enabled $var && continue
645         eval sel="\$${var}_select"
646         eval sgs="\$${var}_suggest"
647         pushvar var sgs
648         enable_deep $sel
649         popvar sgs
650         enable_deep_weak $sgs
651         popvar var
652     done
653 }
654
655 enable_deep(){
656     do_enable_deep $*
657     enable $*
658 }
659
660 enable_deep_weak(){
661     for var; do
662         disabled $var && continue
663         pushvar var
664         do_enable_deep $var
665         popvar var
666         enable_weak $var
667     done
668 }
669
670 requested(){
671     test "${1#!}" = "$1" && op='=' || op=!=
672     eval test "x\$${1#!}_requested" $op "xyes"
673 }
674
675 enabled(){
676     test "${1#!}" = "$1" && op='=' || op=!=
677     eval test "x\$${1#!}" $op "xyes"
678 }
679
680 disabled(){
681     test "${1#!}" = "$1" && op='=' || op=!=
682     eval test "x\$${1#!}" $op "xno"
683 }
684
685 enabled_all(){
686     for opt; do
687         enabled $opt || return 1
688     done
689 }
690
691 disabled_all(){
692     for opt; do
693         disabled $opt || return 1
694     done
695 }
696
697 enabled_any(){
698     for opt; do
699         enabled $opt && return 0
700     done
701 }
702
703 disabled_any(){
704     for opt; do
705         disabled $opt && return 0
706     done
707     return 1
708 }
709
710 set_default(){
711     for opt; do
712         eval : \${$opt:=\$${opt}_default}
713     done
714 }
715
716 is_in(){
717     value=$1
718     shift
719     for var in $*; do
720         [ $var = $value ] && return 0
721     done
722     return 1
723 }
724
725 do_check_deps(){
726     for cfg; do
727         cfg="${cfg#!}"
728         enabled ${cfg}_checking && die "Circular dependency for $cfg."
729         disabled ${cfg}_checking && continue
730         enable ${cfg}_checking
731         append allopts $cfg
732
733         eval dep_all="\$${cfg}_deps"
734         eval dep_any="\$${cfg}_deps_any"
735         eval dep_sel="\$${cfg}_select"
736         eval dep_sgs="\$${cfg}_suggest"
737         eval dep_ifa="\$${cfg}_if"
738         eval dep_ifn="\$${cfg}_if_any"
739
740         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
741         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
742         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
743
744         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
745         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
746         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
747         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
748         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
749
750         if enabled $cfg; then
751             enable_deep $dep_sel
752             enable_deep_weak $dep_sgs
753         fi
754
755         disable ${cfg}_checking
756     done
757 }
758
759 check_deps(){
760     unset allopts
761
762     do_check_deps "$@"
763
764     for cfg in $allopts; do
765         enabled $cfg || continue
766         eval dep_extralibs="\$${cfg}_extralibs"
767         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
768     done
769 }
770
771 print_config(){
772     pfx=$1
773     files=$2
774     shift 2
775     map 'eval echo "$v \${$v:-no}"' "$@" |
776     awk "BEGIN { split(\"$files\", files) }
777         {
778             c = \"$pfx\" toupper(\$1);
779             v = \$2;
780             sub(/yes/, 1, v);
781             sub(/no/,  0, v);
782             for (f in files) {
783                 file = files[f];
784                 if (file ~ /\\.h\$/) {
785                     printf(\"#define %s %d\\n\", c, v) >>file;
786                 } else if (file ~ /\\.asm\$/) {
787                     printf(\"%%define %s %d\\n\", c, v) >>file;
788                 } else if (file ~ /\\.mak\$/) {
789                     n = -v ? \"\" : \"!\";
790                     printf(\"%s%s=yes\\n\", n, c) >>file;
791                 } else if (file ~ /\\.texi\$/) {
792                     pre = -v ? \"\" : \"@c \";
793                     yesno = \$2;
794                     c2 = tolower(c);
795                     gsub(/_/, \"-\", c2);
796                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
797                 }
798             }
799         }"
800 }
801
802 print_enabled(){
803     suf=$1
804     shift
805     for v; do
806         enabled $v && printf "%s\n" ${v%$suf}
807     done
808 }
809
810 append(){
811     var=$1
812     shift
813     eval "$var=\"\$$var $*\""
814 }
815
816 prepend(){
817     var=$1
818     shift
819     eval "$var=\"$* \$$var\""
820 }
821
822 unique(){
823     var=$1
824     uniq_list=""
825     for tok in $(eval echo \$$var); do
826         uniq_list="$(filter_out $tok $uniq_list) $tok"
827     done
828     eval "$var=\"${uniq_list}\""
829 }
830
831 add_cppflags(){
832     append CPPFLAGS "$@"
833 }
834
835 add_cflags(){
836     append CFLAGS $($cflags_filter "$@")
837 }
838
839 add_cflags_headers(){
840     append CFLAGS_HEADERS $($cflags_filter "$@")
841 }
842
843 add_cxxflags(){
844     append CXXFLAGS $($cflags_filter "$@")
845 }
846
847 add_asflags(){
848     append ASFLAGS $($asflags_filter "$@")
849 }
850
851 add_objcflags(){
852     append OBJCFLAGS $($objcflags_filter "$@")
853 }
854
855 add_ldflags(){
856     append LDFLAGS $($ldflags_filter "$@")
857 }
858
859 add_ldexeflags(){
860     append LDEXEFLAGS $($ldflags_filter "$@")
861 }
862
863 add_ldlibflags(){
864     append LDLIBFLAGS $($ldflags_filter "$@")
865 }
866
867 add_stripflags(){
868     append ASMSTRIPFLAGS "$@"
869 }
870
871 add_extralibs(){
872     prepend extralibs $($ldflags_filter "$@")
873 }
874
875 add_host_cppflags(){
876     append host_cppflags "$@"
877 }
878
879 add_host_cflags(){
880     append host_cflags $($host_cflags_filter "$@")
881 }
882
883 add_host_ldflags(){
884     append host_ldflags $($host_ldflags_filter "$@")
885 }
886
887 add_compat(){
888     append compat_objs $1
889     shift
890     map 'add_cppflags -D$v' "$@"
891 }
892
893 check_cmd(){
894     log "$@"
895     "$@" >> $logfile 2>&1
896 }
897
898 check_stat(){
899     log check_stat "$@"
900     stat "$1" >> $logfile 2>&1
901 }
902
903 cc_o(){
904     eval printf '%s\\n' $CC_O
905 }
906
907 cc_e(){
908     eval printf '%s\\n' $CC_E
909 }
910
911 check_cc(){
912     log check_cc "$@"
913     cat > $TMPC
914     log_file $TMPC
915     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
916 }
917
918 check_cxx(){
919     log check_cxx "$@"
920     cat > $TMPCPP
921     log_file $TMPCPP
922     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
923 }
924
925 check_objcc(){
926     log check_objcc "$@"
927     cat > $TMPM
928     log_file $TMPM
929     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
930 }
931
932 check_cpp(){
933     log check_cpp "$@"
934     cat > $TMPC
935     log_file $TMPC
936     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
937 }
938
939 as_o(){
940     eval printf '%s\\n' $AS_O
941 }
942
943 check_as(){
944     log check_as "$@"
945     cat > $TMPS
946     log_file $TMPS
947     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
948 }
949
950 check_inline_asm(){
951     log check_inline_asm "$@"
952     name="$1"
953     code="$2"
954     shift 2
955     disable $name
956     check_cc "$@" <<EOF && enable $name
957 void foo(void){ __asm__ volatile($code); }
958 EOF
959 }
960
961 check_inline_asm_flags(){
962     log check_inline_asm_flags "$@"
963     name="$1"
964     code="$2"
965     flags=''
966     shift 2
967     while [ "$1" != "" ]; do
968       append flags $1
969       shift
970     done;
971     disable $name
972     cat > $TMPC <<EOF
973 void foo(void){ __asm__ volatile($code); }
974 EOF
975     log_file $TMPC
976     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
977     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
978 }
979
980 check_insn(){
981     log check_insn "$@"
982     check_inline_asm ${1}_inline "\"$2\""
983     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
984 }
985
986 check_x86asm(){
987     log check_x86asm "$@"
988     echo "$1" > $TMPS
989     log_file $TMPS
990     shift 1
991     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
992 }
993
994 ld_o(){
995     eval printf '%s\\n' $LD_O
996 }
997
998 check_ld(){
999     log check_ld "$@"
1000     type=$1
1001     shift 1
1002     flags=$(filter_out '-l*|*.so' $@)
1003     libs=$(filter '-l*|*.so' $@)
1004     check_$type $($cflags_filter $flags) || return
1005     flags=$($ldflags_filter $flags)
1006     libs=$($ldflags_filter $libs)
1007     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1008 }
1009
1010 print_include(){
1011     hdr=$1
1012     test "${hdr%.h}" = "${hdr}" &&
1013         echo "#include $hdr"    ||
1014         echo "#include <$hdr>"
1015 }
1016
1017 check_code(){
1018     log check_code "$@"
1019     check=$1
1020     headers=$2
1021     code=$3
1022     shift 3
1023     {
1024         for hdr in $headers; do
1025             print_include $hdr
1026         done
1027         echo "int main(void) { $code; return 0; }"
1028     } | check_$check "$@"
1029 }
1030
1031 check_cppflags(){
1032     log check_cppflags "$@"
1033     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1034 int x;
1035 EOF
1036 }
1037
1038 test_cflags(){
1039     log test_cflags "$@"
1040     set -- $($cflags_filter "$@")
1041     check_cc "$@" <<EOF
1042 int x;
1043 EOF
1044 }
1045
1046 check_cflags(){
1047     log check_cflags "$@"
1048     test_cflags "$@" && add_cflags "$@"
1049 }
1050
1051 check_cxxflags(){
1052     log check_cxxflags "$@"
1053     set -- $($cflags_filter "$@")
1054     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1055 int x;
1056 EOF
1057 }
1058
1059 test_objcflags(){
1060     log test_objcflags "$@"
1061     set -- $($objcflags_filter "$@")
1062     check_objcc "$@" <<EOF
1063 int x;
1064 EOF
1065 }
1066
1067 check_objcflags(){
1068     log check_objcflags "$@"
1069     test_objcflags "$@" && add_objcflags "$@"
1070 }
1071
1072 test_ldflags(){
1073     log test_ldflags "$@"
1074     check_ld "cc" "$@" <<EOF
1075 int main(void){ return 0; }
1076 EOF
1077 }
1078
1079 check_ldflags(){
1080     log check_ldflags "$@"
1081     test_ldflags "$@" && add_ldflags "$@"
1082 }
1083
1084 test_stripflags(){
1085     log test_stripflags "$@"
1086     # call check_cc to get a fresh TMPO
1087     check_cc <<EOF
1088 int main(void) { return 0; }
1089 EOF
1090     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1091 }
1092
1093 check_stripflags(){
1094     log check_stripflags "$@"
1095     test_stripflags "$@" && add_stripflags "$@"
1096 }
1097
1098 check_header(){
1099     log check_header "$@"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     check_cpp "$@" <<EOF && enable_safe $header
1104 #include <$header>
1105 int x;
1106 EOF
1107 }
1108
1109 check_header_objcc(){
1110     log check_header_objcc "$@"
1111     rm -f -- "$TMPO"
1112     header=$1
1113     shift
1114     disable_safe $header
1115     {
1116        echo "#include <$header>"
1117        echo "int main(void) { return 0; }"
1118     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1119 }
1120
1121 check_func(){
1122     log check_func "$@"
1123     func=$1
1124     shift
1125     disable $func
1126     check_ld "cc" "$@" <<EOF && enable $func
1127 extern int $func();
1128 int main(void){ $func(); }
1129 EOF
1130 }
1131
1132 check_complexfunc(){
1133     log check_complexfunc "$@"
1134     func=$1
1135     narg=$2
1136     shift 2
1137     test $narg = 2 && args="f, g" || args="f * I"
1138     disable $func
1139     check_ld "cc" "$@" <<EOF && enable $func
1140 #include <complex.h>
1141 #include <math.h>
1142 float foo(complex float f, complex float g) { return $func($args); }
1143 int main(void){ return (int) foo; }
1144 EOF
1145 }
1146
1147 check_mathfunc(){
1148     log check_mathfunc "$@"
1149     func=$1
1150     narg=$2
1151     shift 2
1152     test $narg = 2 && args="f, g" || args="f"
1153     disable $func
1154     check_ld "cc" "$@" <<EOF && enable $func
1155 #include <math.h>
1156 float foo(float f, float g) { return $func($args); }
1157 int main(void){ return (int) foo; }
1158 EOF
1159 }
1160
1161 check_func_headers(){
1162     log check_func_headers "$@"
1163     headers=$1
1164     funcs=$2
1165     shift 2
1166     {
1167         for hdr in $headers; do
1168             print_include $hdr
1169         done
1170         echo "#include <stdint.h>"
1171         for func in $funcs; do
1172             echo "long check_$func(void) { return (long) $func; }"
1173         done
1174         echo "int main(void) { int ret = 0;"
1175         # LTO could optimize out the test functions without this
1176         for func in $funcs; do
1177             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1178         done
1179         echo "return ret; }"
1180     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1181 }
1182
1183 check_class_headers_cpp(){
1184     log check_class_headers_cpp "$@"
1185     headers=$1
1186     classes=$2
1187     shift 2
1188     {
1189         for hdr in $headers; do
1190             echo "#include <$hdr>"
1191         done
1192         echo "int main(void) { "
1193         i=1
1194         for class in $classes; do
1195             echo "$class obj$i;"
1196             i=$(expr $i + 1)
1197         done
1198         echo "return 0; }"
1199     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1200 }
1201
1202 check_cpp_condition(){
1203     log check_cpp_condition "$@"
1204     header=$1
1205     condition=$2
1206     shift 2
1207     check_cpp "$@" <<EOF
1208 #include <$header>
1209 #if !($condition)
1210 #error "unsatisfied condition: $condition"
1211 #endif
1212 EOF
1213 }
1214
1215 test_cflags_cc(){
1216     log test_cflags_cc "$@"
1217     flags=$1
1218     header=$2
1219     condition=$3
1220     shift 3
1221     set -- $($cflags_filter "$flags")
1222     check_cc "$@" <<EOF
1223 #include <$header>
1224 #if !($condition)
1225 #error "unsatisfied condition: $condition"
1226 #endif
1227 EOF
1228 }
1229
1230 check_lib(){
1231     log check_lib "$@"
1232     name="$1"
1233     headers="$2"
1234     funcs="$3"
1235     shift 3
1236     disable $name
1237     check_func_headers "$headers" "$funcs" "$@" &&
1238         enable $name && add_extralibs "$@"
1239 }
1240
1241 check_lib_cpp(){
1242     log check_lib_cpp "$@"
1243     headers="$1"
1244     classes="$2"
1245     shift 2
1246     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1247 }
1248
1249 check_pkg_config(){
1250     log check_pkg_config "$@"
1251     pkg_version="$1"
1252     pkg="${1%% *}"
1253     headers="$2"
1254     funcs="$3"
1255     shift 3
1256     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1257     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1258     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1259     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1260         set_safe "${pkg}_cflags"    $pkg_cflags &&
1261         set_safe "${pkg}_extralibs" $pkg_libs
1262 }
1263
1264 check_exec(){
1265     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1266 }
1267
1268 check_exec_crash(){
1269     log check_exec_crash "$@"
1270     code=$(cat)
1271
1272     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1273     # are safe but may not be available everywhere.  Thus we use
1274     # raise(SIGTERM) instead.  The check is run in a subshell so we
1275     # can redirect the "Terminated" message from the shell.  SIGBUS
1276     # is not defined by standard C so it is used conditionally.
1277
1278     (check_exec "$@") >> $logfile 2>&1 <<EOF
1279 #include <signal.h>
1280 static void sighandler(int sig){
1281     raise(SIGTERM);
1282 }
1283 int foo(void){
1284     $code
1285 }
1286 int (*func_ptr)(void) = foo;
1287 int main(void){
1288     signal(SIGILL, sighandler);
1289     signal(SIGFPE, sighandler);
1290     signal(SIGSEGV, sighandler);
1291 #ifdef SIGBUS
1292     signal(SIGBUS, sighandler);
1293 #endif
1294     return func_ptr();
1295 }
1296 EOF
1297 }
1298
1299 check_type(){
1300     log check_type "$@"
1301     headers=$1
1302     type=$2
1303     shift 2
1304     disable_safe "$type"
1305     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1306 }
1307
1308 check_struct(){
1309     log check_struct "$@"
1310     headers=$1
1311     struct=$2
1312     member=$3
1313     shift 3
1314     disable_safe "${struct}_${member}"
1315     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1316         enable_safe "${struct}_${member}"
1317 }
1318
1319 check_builtin(){
1320     log check_builtin "$@"
1321     name=$1
1322     headers=$2
1323     builtin=$3
1324     shift 3
1325     disable "$name"
1326     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1327 }
1328
1329 check_compile_assert(){
1330     log check_compile_assert "$@"
1331     name=$1
1332     headers=$2
1333     condition=$3
1334     shift 3
1335     disable "$name"
1336     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1337 }
1338
1339 require(){
1340     log require "$@"
1341     name_version="$1"
1342     name="${1%% *}"
1343     headers="$2"
1344     func="$3"
1345     shift 3
1346     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1347 }
1348
1349 require_cpp(){
1350     name="$1"
1351     headers="$2"
1352     classes="$3"
1353     shift 3
1354     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1355 }
1356
1357 use_pkg_config(){
1358     log use_pkg_config "$@"
1359     pkg="$1"
1360     check_pkg_config "$@" || return 1
1361     add_cflags    $(get_safe "${pkg}_cflags")
1362     add_extralibs $(get_safe "${pkg}_extralibs")
1363 }
1364
1365 require_pkg_config(){
1366     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1367 }
1368
1369 hostcc_e(){
1370     eval printf '%s\\n' $HOSTCC_E
1371 }
1372
1373 hostcc_o(){
1374     eval printf '%s\\n' $HOSTCC_O
1375 }
1376
1377 check_host_cc(){
1378     log check_host_cc "$@"
1379     cat > $TMPC
1380     log_file $TMPC
1381     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1382 }
1383
1384 check_host_cpp(){
1385     log check_host_cpp "$@"
1386     cat > $TMPC
1387     log_file $TMPC
1388     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1389 }
1390
1391 check_host_cppflags(){
1392     log check_host_cppflags "$@"
1393     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1394 int x;
1395 EOF
1396 }
1397
1398 check_host_cflags(){
1399     log check_host_cflags "$@"
1400     set -- $($host_cflags_filter "$@")
1401     check_host_cc "$@" <<EOF && append host_cflags "$@"
1402 int x;
1403 EOF
1404 }
1405
1406 check_host_cpp_condition(){
1407     log check_host_cpp_condition "$@"
1408     header=$1
1409     condition=$2
1410     shift 2
1411     check_host_cpp "$@" <<EOF
1412 #include <$header>
1413 #if !($condition)
1414 #error "unsatisfied condition: $condition"
1415 #endif
1416 EOF
1417 }
1418
1419 cp_if_changed(){
1420     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1421     mkdir -p "$(dirname $2)"
1422     cp -f "$1" "$2"
1423 }
1424
1425 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1426 # system-dependent things.
1427
1428 AVCODEC_COMPONENTS="
1429     bsfs
1430     decoders
1431     encoders
1432     hwaccels
1433     parsers
1434 "
1435
1436 AVDEVICE_COMPONENTS="
1437     indevs
1438     outdevs
1439 "
1440 AVFILTER_COMPONENTS="
1441     filters
1442 "
1443 AVFORMAT_COMPONENTS="
1444     demuxers
1445     muxers
1446     protocols
1447 "
1448
1449 AVRESAMPLE_COMPONENTS=""
1450 AVUTIL_COMPONENTS=""
1451
1452 COMPONENT_LIST="
1453     $AVCODEC_COMPONENTS
1454     $AVDEVICE_COMPONENTS
1455     $AVFILTER_COMPONENTS
1456     $AVFORMAT_COMPONENTS
1457     $AVRESAMPLE_COMPONENTS
1458     $AVUTIL_COMPONENTS
1459 "
1460
1461 EXAMPLE_LIST="
1462     avio_dir_cmd_example
1463     avio_reading_example
1464     decode_audio_example
1465     decode_video_example
1466     demuxing_decoding_example
1467     encode_audio_example
1468     encode_video_example
1469     extract_mvs_example
1470     filter_audio_example
1471     filtering_audio_example
1472     filtering_video_example
1473     http_multiclient_example
1474     hw_decode_example
1475     metadata_example
1476     muxing_example
1477     qsvdec_example
1478     remuxing_example
1479     resampling_audio_example
1480     scaling_video_example
1481     transcode_aac_example
1482     transcoding_example
1483 "
1484 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1485     alsa
1486     bzlib
1487     iconv
1488     libxcb
1489     libxcb_shm
1490     libxcb_shape
1491     libxcb_xfixes
1492     lzma
1493     schannel
1494     sdl2
1495     securetransport
1496     xlib
1497     zlib
1498 "
1499
1500 EXTERNAL_LIBRARY_GPL_LIST="
1501     avisynth
1502     frei0r
1503     libcdio
1504     librubberband
1505     libvidstab
1506     libx264
1507     libx265
1508     libxavs
1509     libxvid
1510 "
1511
1512 EXTERNAL_LIBRARY_NONFREE_LIST="
1513     decklink
1514     libndi_newtek
1515     libfdk_aac
1516     openssl
1517 "
1518
1519 EXTERNAL_LIBRARY_VERSION3_LIST="
1520     gmp
1521     libopencore_amrnb
1522     libopencore_amrwb
1523     libvo_amrwbenc
1524 "
1525
1526 EXTERNAL_LIBRARY_GPLV3_LIST="
1527     libsmbclient
1528 "
1529
1530 EXTERNAL_LIBRARY_LIST="
1531     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1532     $EXTERNAL_LIBRARY_GPL_LIST
1533     $EXTERNAL_LIBRARY_NONFREE_LIST
1534     $EXTERNAL_LIBRARY_VERSION3_LIST
1535     $EXTERNAL_LIBRARY_GPLV3_LIST
1536     chromaprint
1537     gcrypt
1538     gnutls
1539     jni
1540     ladspa
1541     libass
1542     libbluray
1543     libbs2b
1544     libcaca
1545     libcelt
1546     libdc1394
1547     libflite
1548     libfontconfig
1549     libfreetype
1550     libfribidi
1551     libgme
1552     libgsm
1553     libiec61883
1554     libilbc
1555     libkvazaar
1556     libmodplug
1557     libmp3lame
1558     libmysofa
1559     libopencv
1560     libopenh264
1561     libopenjpeg
1562     libopenmpt
1563     libopus
1564     libpulse
1565     librsvg
1566     librtmp
1567     libshine
1568     libsmbclient
1569     libsnappy
1570     libsoxr
1571     libspeex
1572     libssh
1573     libtesseract
1574     libtheora
1575     libtwolame
1576     libv4l2
1577     libvmaf
1578     libvorbis
1579     libvpx
1580     libwavpack
1581     libwebp
1582     libzimg
1583     libzmq
1584     libzvbi
1585     mediacodec
1586     openal
1587     opencl
1588     opengl
1589     videotoolbox
1590 "
1591 HWACCEL_AUTODETECT_LIBRARY_LIST="
1592     audiotoolbox
1593     crystalhd
1594     cuda
1595     cuvid
1596     d3d11va
1597     dxva2
1598     nvenc
1599     vaapi
1600     vda
1601     vdpau
1602     videotoolbox_hwaccel
1603     xvmc
1604 "
1605
1606 HWACCEL_LIBRARY_NONFREE_LIST="
1607     cuda_sdk
1608     libnpp
1609 "
1610
1611 HWACCEL_LIBRARY_LIST="
1612     $HWACCEL_AUTODETECT_LIBRARY_LIST
1613     $HWACCEL_LIBRARY_NONFREE_LIST
1614     libmfx
1615     mmal
1616     omx
1617 "
1618
1619 DOCUMENT_LIST="
1620     doc
1621     htmlpages
1622     manpages
1623     podpages
1624     txtpages
1625 "
1626
1627 FEATURE_LIST="
1628     ftrapv
1629     gray
1630     hardcoded_tables
1631     omx_rpi
1632     runtime_cpudetect
1633     safe_bitstream_reader
1634     shared
1635     small
1636     static
1637     swscale_alpha
1638 "
1639
1640 LIBRARY_LIST="
1641     avcodec
1642     avdevice
1643     avfilter
1644     avformat
1645     avresample
1646     avutil
1647     postproc
1648     swresample
1649     swscale
1650 "
1651
1652 LICENSE_LIST="
1653     gpl
1654     nonfree
1655     version3
1656 "
1657
1658 PROGRAM_LIST="
1659     ffplay
1660     ffprobe
1661     ffserver
1662     ffmpeg
1663 "
1664
1665 SUBSYSTEM_LIST="
1666     dct
1667     dwt
1668     error_resilience
1669     faan
1670     fast_unaligned
1671     fft
1672     lsp
1673     lzo
1674     mdct
1675     pixelutils
1676     network
1677     rdft
1678 "
1679
1680 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1681 CONFIG_LIST="
1682     $DOCUMENT_LIST
1683     $EXAMPLE_LIST
1684     $EXTERNAL_LIBRARY_LIST
1685     $HWACCEL_LIBRARY_LIST
1686     $FEATURE_LIST
1687     $LICENSE_LIST
1688     $LIBRARY_LIST
1689     $PROGRAM_LIST
1690     $SUBSYSTEM_LIST
1691     autodetect
1692     fontconfig
1693     memory_poisoning
1694     neon_clobber_test
1695     ossfuzz
1696     pic
1697     thumb
1698     valgrind_backtrace
1699     xmm_clobber_test
1700     $COMPONENT_LIST
1701 "
1702
1703 THREADS_LIST="
1704     pthreads
1705     os2threads
1706     w32threads
1707 "
1708
1709 ATOMICS_LIST="
1710     atomics_gcc
1711     atomics_suncc
1712     atomics_win32
1713 "
1714
1715 AUTODETECT_LIBS="
1716     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1717     $HWACCEL_AUTODETECT_LIBRARY_LIST
1718     $THREADS_LIST
1719 "
1720
1721 ARCH_LIST="
1722     aarch64
1723     alpha
1724     arm
1725     avr32
1726     avr32_ap
1727     avr32_uc
1728     bfin
1729     ia64
1730     m68k
1731     mips
1732     mips64
1733     parisc
1734     ppc
1735     ppc64
1736     s390
1737     sh4
1738     sparc
1739     sparc64
1740     tilegx
1741     tilepro
1742     tomi
1743     x86
1744     x86_32
1745     x86_64
1746 "
1747
1748 ARCH_EXT_LIST_ARM="
1749     armv5te
1750     armv6
1751     armv6t2
1752     armv8
1753     neon
1754     vfp
1755     vfpv3
1756     setend
1757 "
1758
1759 ARCH_EXT_LIST_MIPS="
1760     mipsfpu
1761     mips32r2
1762     mips32r5
1763     mips64r2
1764     mips32r6
1765     mips64r6
1766     mipsdsp
1767     mipsdspr2
1768     msa
1769 "
1770
1771 ARCH_EXT_LIST_LOONGSON="
1772     loongson2
1773     loongson3
1774     mmi
1775 "
1776
1777 ARCH_EXT_LIST_X86_SIMD="
1778     aesni
1779     amd3dnow
1780     amd3dnowext
1781     avx
1782     avx2
1783     fma3
1784     fma4
1785     mmx
1786     mmxext
1787     sse
1788     sse2
1789     sse3
1790     sse4
1791     sse42
1792     ssse3
1793     xop
1794 "
1795
1796 ARCH_EXT_LIST_PPC="
1797     altivec
1798     dcbzl
1799     ldbrx
1800     power8
1801     ppc4xx
1802     vsx
1803 "
1804
1805 ARCH_EXT_LIST_X86="
1806     $ARCH_EXT_LIST_X86_SIMD
1807     cpunop
1808     i686
1809 "
1810
1811 ARCH_EXT_LIST="
1812     $ARCH_EXT_LIST_ARM
1813     $ARCH_EXT_LIST_PPC
1814     $ARCH_EXT_LIST_X86
1815     $ARCH_EXT_LIST_MIPS
1816     $ARCH_EXT_LIST_LOONGSON
1817 "
1818
1819 ARCH_FEATURES="
1820     aligned_stack
1821     fast_64bit
1822     fast_clz
1823     fast_cmov
1824     local_aligned_8
1825     local_aligned_16
1826     local_aligned_32
1827     simd_align_16
1828     simd_align_32
1829 "
1830
1831 BUILTIN_LIST="
1832     atomic_cas_ptr
1833     machine_rw_barrier
1834     MemoryBarrier
1835     mm_empty
1836     rdtsc
1837     sarestart
1838     sem_timedwait
1839     sync_val_compare_and_swap
1840 "
1841 HAVE_LIST_CMDLINE="
1842     inline_asm
1843     symver
1844     x86asm
1845 "
1846
1847 HAVE_LIST_PUB="
1848     bigendian
1849     fast_unaligned
1850 "
1851
1852 HEADERS_LIST="
1853     alsa_asoundlib_h
1854     altivec_h
1855     arpa_inet_h
1856     asm_types_h
1857     cdio_paranoia_h
1858     cdio_paranoia_paranoia_h
1859     cuda_h
1860     d3d11_h
1861     dispatch_dispatch_h
1862     dev_bktr_ioctl_bt848_h
1863     dev_bktr_ioctl_meteor_h
1864     dev_ic_bt8xx_h
1865     dev_video_bktr_ioctl_bt848_h
1866     dev_video_meteor_ioctl_meteor_h
1867     direct_h
1868     dirent_h
1869     dlfcn_h
1870     dxgidebug_h
1871     dxva_h
1872     ES2_gl_h
1873     gsm_h
1874     io_h
1875     mach_mach_time_h
1876     machine_ioctl_bt848_h
1877     machine_ioctl_meteor_h
1878     malloc_h
1879     opencv2_core_core_c_h
1880     openjpeg_2_2_openjpeg_h
1881     openjpeg_2_1_openjpeg_h
1882     openjpeg_2_0_openjpeg_h
1883     openjpeg_1_5_openjpeg_h
1884     OpenGL_gl3_h
1885     poll_h
1886     sndio_h
1887     soundcard_h
1888     stdatomic_h
1889     sys_mman_h
1890     sys_param_h
1891     sys_resource_h
1892     sys_select_h
1893     sys_soundcard_h
1894     sys_time_h
1895     sys_un_h
1896     sys_videoio_h
1897     termios_h
1898     udplite_h
1899     unistd_h
1900     valgrind_valgrind_h
1901     windows_h
1902     winsock2_h
1903 "
1904
1905 INTRINSICS_LIST="
1906     intrinsics_neon
1907 "
1908
1909 COMPLEX_FUNCS="
1910     cabs
1911     cexp
1912 "
1913
1914 MATH_FUNCS="
1915     atanf
1916     atan2f
1917     cbrt
1918     cbrtf
1919     copysign
1920     cosf
1921     erf
1922     exp2
1923     exp2f
1924     expf
1925     hypot
1926     isfinite
1927     isinf
1928     isnan
1929     ldexpf
1930     llrint
1931     llrintf
1932     log2
1933     log2f
1934     log10f
1935     lrint
1936     lrintf
1937     powf
1938     rint
1939     round
1940     roundf
1941     sinf
1942     trunc
1943     truncf
1944 "
1945
1946 SYSTEM_FUNCS="
1947     access
1948     aligned_malloc
1949     arc4random
1950     clock_gettime
1951     closesocket
1952     CommandLineToArgvW
1953     CoTaskMemFree
1954     CryptGenRandom
1955     dlopen
1956     fcntl
1957     flt_lim
1958     fork
1959     getaddrinfo
1960     gethrtime
1961     getopt
1962     GetProcessAffinityMask
1963     GetProcessMemoryInfo
1964     GetProcessTimes
1965     getrusage
1966     GetSystemTimeAsFileTime
1967     gettimeofday
1968     glob
1969     glXGetProcAddress
1970     gmtime_r
1971     inet_aton
1972     isatty
1973     jack_port_get_latency_range
1974     kbhit
1975     LoadLibrary
1976     localtime_r
1977     lstat
1978     lzo1x_999_compress
1979     mach_absolute_time
1980     MapViewOfFile
1981     memalign
1982     mkstemp
1983     mmap
1984     mprotect
1985     nanosleep
1986     PeekNamedPipe
1987     posix_memalign
1988     pthread_cancel
1989     sched_getaffinity
1990     SetConsoleTextAttribute
1991     SetConsoleCtrlHandler
1992     setmode
1993     setrlimit
1994     Sleep
1995     strerror_r
1996     sysconf
1997     sysctl
1998     usleep
1999     UTGetOSTypeFromString
2000     VirtualAlloc
2001     wglGetProcAddress
2002 "
2003
2004 TOOLCHAIN_FEATURES="
2005     as_dn_directive
2006     as_fpu_directive
2007     as_func
2008     as_object_arch
2009     asm_mod_q
2010     attribute_may_alias
2011     attribute_packed
2012     blocks_extension
2013     ebp_available
2014     ebx_available
2015     gnu_as
2016     gnu_windres
2017     ibm_asm
2018     inline_asm_direct_symbol_refs
2019     inline_asm_labels
2020     inline_asm_nonlocal_labels
2021     pragma_deprecated
2022     rsync_contimeout
2023     symver_asm_label
2024     symver_gnu_asm
2025     vfp_args
2026     xform_asm
2027     xmm_clobbers
2028 "
2029
2030 TYPES_LIST="
2031     CONDITION_VARIABLE_Ptr
2032     socklen_t
2033     struct_addrinfo
2034     struct_group_source_req
2035     struct_ip_mreq_source
2036     struct_ipv6_mreq
2037     struct_msghdr_msg_flags
2038     struct_pollfd
2039     struct_rusage_ru_maxrss
2040     struct_sctp_event_subscribe
2041     struct_sockaddr_in6
2042     struct_sockaddr_sa_len
2043     struct_sockaddr_storage
2044     struct_stat_st_mtim_tv_nsec
2045     struct_v4l2_frmivalenum_discrete
2046 "
2047
2048 HAVE_LIST="
2049     $ARCH_EXT_LIST
2050     $(add_suffix _external $ARCH_EXT_LIST)
2051     $(add_suffix _inline   $ARCH_EXT_LIST)
2052     $ARCH_FEATURES
2053     $ATOMICS_LIST
2054     $BUILTIN_LIST
2055     $COMPLEX_FUNCS
2056     $HAVE_LIST_CMDLINE
2057     $HAVE_LIST_PUB
2058     $HEADERS_LIST
2059     $INTRINSICS_LIST
2060     $MATH_FUNCS
2061     $SYSTEM_FUNCS
2062     $THREADS_LIST
2063     $TOOLCHAIN_FEATURES
2064     $TYPES_LIST
2065     atomics_native
2066     dos_paths
2067     jack
2068     libc_msvcrt
2069     makeinfo
2070     makeinfo_html
2071     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2072     perl
2073     pod2man
2074     section_data_rel_ro
2075     sndio
2076     texi2html
2077     threads
2078     uwp
2079     vaapi_drm
2080     vaapi_x11
2081     vdpau_x11
2082     winrt
2083 "
2084
2085 # options emitted with CONFIG_ prefix but not available on the command line
2086 CONFIG_EXTRA="
2087     aandcttables
2088     ac3dsp
2089     audio_frame_queue
2090     audiodsp
2091     blockdsp
2092     bswapdsp
2093     cabac
2094     dirac_parse
2095     dvprofile
2096     exif
2097     faandct
2098     faanidct
2099     fdctdsp
2100     flacdsp
2101     fmtconvert
2102     frame_thread_encoder
2103     g722dsp
2104     golomb
2105     gplv3
2106     h263dsp
2107     h264chroma
2108     h264dsp
2109     h264parse
2110     h264pred
2111     h264qpel
2112     hevcparse
2113     hpeldsp
2114     huffman
2115     huffyuvdsp
2116     huffyuvencdsp
2117     idctdsp
2118     iirfilter
2119     mdct15
2120     intrax8
2121     iso_media
2122     ividsp
2123     jpegtables
2124     lgplv3
2125     libx262
2126     llauddsp
2127     llviddsp
2128     llvidencdsp
2129     lpc
2130     lzf
2131     me_cmp
2132     mpeg_er
2133     mpegaudio
2134     mpegaudiodsp
2135     mpegaudioheader
2136     mpegvideo
2137     mpegvideoenc
2138     mss34dsp
2139     pixblockdsp
2140     qpeldsp
2141     qsv
2142     qsvdec
2143     qsvenc
2144     rangecoder
2145     riffdec
2146     riffenc
2147     rtpdec
2148     rtpenc_chain
2149     rv34dsp
2150     sinewin
2151     snappy
2152     srtp
2153     startcode
2154     texturedsp
2155     texturedspenc
2156     tpeldsp
2157     vaapi_encode
2158     vc1dsp
2159     videodsp
2160     vp3dsp
2161     vp56dsp
2162     vp8dsp
2163     vt_bt2020
2164     wma_freqs
2165     wmv2dsp
2166 "
2167
2168 CMDLINE_SELECT="
2169     $ARCH_EXT_LIST
2170     $CONFIG_LIST
2171     $HAVE_LIST_CMDLINE
2172     $THREADS_LIST
2173     asm
2174     cross_compile
2175     debug
2176     extra_warnings
2177     logging
2178     lto
2179     optimizations
2180     rpath
2181     stripping
2182 "
2183
2184 PATHS_LIST="
2185     bindir
2186     datadir
2187     docdir
2188     incdir
2189     libdir
2190     mandir
2191     pkgconfigdir
2192     prefix
2193     shlibdir
2194     install_name_dir
2195 "
2196
2197 CMDLINE_SET="
2198     $PATHS_LIST
2199     ar
2200     arch
2201     as
2202     assert_level
2203     build_suffix
2204     cc
2205     objcc
2206     cpu
2207     cross_prefix
2208     custom_allocator
2209     cxx
2210     dep_cc
2211     doxygen
2212     env
2213     extra_version
2214     gas
2215     host_cc
2216     host_cflags
2217     host_extralibs
2218     host_ld
2219     host_ldflags
2220     host_os
2221     ignore_tests
2222     install
2223     ld
2224     ln_s
2225     logfile
2226     malloc_prefix
2227     nm
2228     optflags
2229     nvccflags
2230     pkg_config
2231     pkg_config_flags
2232     progs_suffix
2233     random_seed
2234     ranlib
2235     samples
2236     strip
2237     sws_max_filter_size
2238     sysinclude
2239     sysroot
2240     target_exec
2241     target_os
2242     target_path
2243     target_samples
2244     tempprefix
2245     toolchain
2246     valgrind
2247     x86asmexe
2248 "
2249
2250 CMDLINE_APPEND="
2251     extra_cflags
2252     extra_cxxflags
2253     extra_objcflags
2254     host_cppflags
2255 "
2256
2257 # code dependency declarations
2258
2259 # architecture extensions
2260
2261 armv5te_deps="arm"
2262 armv6_deps="arm"
2263 armv6t2_deps="arm"
2264 armv8_deps="aarch64"
2265 neon_deps_any="aarch64 arm"
2266 intrinsics_neon_deps="neon"
2267 vfp_deps_any="aarch64 arm"
2268 vfpv3_deps="vfp"
2269 setend_deps="arm"
2270
2271 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2272
2273 loongson2_deps="mips"
2274 loongson3_deps="mips"
2275 mipsfpu_deps="mips"
2276 mipsdsp_deps="mips"
2277 mipsdspr2_deps="mips"
2278 mips32r2_deps="mips"
2279 mips32r5_deps="mips"
2280 mips32r6_deps="mips"
2281 mips64r2_deps="mips"
2282 mips64r6_deps="mips"
2283 msa_deps="mipsfpu"
2284 mmi_deps="mips"
2285
2286 altivec_deps="ppc"
2287 dcbzl_deps="ppc"
2288 ldbrx_deps="ppc"
2289 ppc4xx_deps="ppc"
2290 vsx_deps="altivec"
2291 power8_deps="vsx"
2292
2293 cpunop_deps="i686"
2294 x86_64_select="i686"
2295 x86_64_suggest="fast_cmov"
2296
2297 amd3dnow_deps="mmx"
2298 amd3dnowext_deps="amd3dnow"
2299 i686_deps="x86"
2300 mmx_deps="x86"
2301 mmxext_deps="mmx"
2302 sse_deps="mmxext"
2303 sse2_deps="sse"
2304 sse3_deps="sse2"
2305 ssse3_deps="sse3"
2306 sse4_deps="ssse3"
2307 sse42_deps="sse4"
2308 aesni_deps="sse42"
2309 avx_deps="sse42"
2310 xop_deps="avx"
2311 fma3_deps="avx"
2312 fma4_deps="avx"
2313 avx2_deps="avx"
2314
2315 mmx_external_deps="x86asm"
2316 mmx_inline_deps="inline_asm"
2317 mmx_suggest="mmx_external mmx_inline"
2318
2319 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2320     eval dep=\$${ext}_deps
2321     eval ${ext}_external_deps='"${dep}_external"'
2322     eval ${ext}_inline_deps='"${dep}_inline"'
2323     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2324 done
2325
2326 aligned_stack_if_any="aarch64 ppc x86"
2327 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2328 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2329 fast_unaligned_if_any="aarch64 ppc x86"
2330 simd_align_16_if_any="altivec neon sse"
2331 simd_align_32_if_any="avx"
2332
2333 # system capabilities
2334 symver_if_any="symver_asm_label symver_gnu_asm"
2335 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2336
2337 # threading support
2338 atomics_gcc_if="sync_val_compare_and_swap"
2339 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2340 atomics_win32_if="MemoryBarrier"
2341 atomics_native_if_any="$ATOMICS_LIST"
2342 w32threads_deps="atomics_native"
2343 threads_if_any="$THREADS_LIST"
2344
2345 # subsystems
2346 dct_select="rdft"
2347 dirac_parse_select="golomb"
2348 error_resilience_select="me_cmp"
2349 faandct_deps="faan fdctdsp"
2350 faanidct_deps="faan idctdsp"
2351 h264dsp_select="startcode"
2352 hevcparse_select="golomb"
2353 frame_thread_encoder_deps="encoders threads"
2354 intrax8_select="blockdsp idctdsp"
2355 mdct_select="fft"
2356 mdct15_select="fft"
2357 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2358 mpeg_er_select="error_resilience"
2359 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2360 mpegaudiodsp_select="dct"
2361 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2362 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2363 vc1dsp_select="h264chroma qpeldsp startcode"
2364 rdft_select="fft"
2365
2366 # decoders / encoders
2367 aac_decoder_select="mdct15 mdct sinewin"
2368 aac_fixed_decoder_select="mdct sinewin"
2369 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2370 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2371 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2372 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2373 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2374 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2375 adpcm_g722_decoder_select="g722dsp"
2376 adpcm_g722_encoder_select="g722dsp"
2377 aic_decoder_select="golomb idctdsp"
2378 alac_encoder_select="lpc"
2379 als_decoder_select="bswapdsp"
2380 amrnb_decoder_select="lsp"
2381 amrwb_decoder_select="lsp"
2382 amv_decoder_select="sp5x_decoder exif"
2383 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2384 ape_decoder_select="bswapdsp llauddsp"
2385 apng_decoder_select="zlib"
2386 apng_encoder_select="llvidencdsp zlib"
2387 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2388 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2389 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2390 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2391 atrac1_decoder_select="mdct sinewin"
2392 atrac3_decoder_select="mdct"
2393 atrac3p_decoder_select="mdct sinewin"
2394 avrn_decoder_select="exif jpegtables"
2395 bink_decoder_select="blockdsp hpeldsp"
2396 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2397 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2398 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2399 clearvideo_decoder_select="idctdsp"
2400 cllc_decoder_select="bswapdsp"
2401 comfortnoise_encoder_select="lpc"
2402 cook_decoder_select="audiodsp mdct sinewin"
2403 cscd_decoder_select="lzo"
2404 cscd_decoder_suggest="zlib"
2405 dca_decoder_select="mdct"
2406 dds_decoder_select="texturedsp"
2407 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2408 dnxhd_decoder_select="blockdsp idctdsp"
2409 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2410 dolby_e_decoder_select="mdct"
2411 dvvideo_decoder_select="dvprofile idctdsp"
2412 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2413 dxa_decoder_select="zlib"
2414 dxv_decoder_select="lzf texturedsp"
2415 eac3_decoder_select="ac3_decoder"
2416 eac3_encoder_select="ac3_encoder"
2417 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2418 eatgq_decoder_select="aandcttables"
2419 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2420 exr_decoder_select="zlib"
2421 ffv1_decoder_select="rangecoder"
2422 ffv1_encoder_select="rangecoder"
2423 ffvhuff_decoder_select="huffyuv_decoder"
2424 ffvhuff_encoder_select="huffyuv_encoder"
2425 fic_decoder_select="golomb"
2426 flac_decoder_select="flacdsp"
2427 flac_encoder_select="bswapdsp flacdsp lpc"
2428 flashsv2_decoder_select="zlib"
2429 flashsv2_encoder_select="zlib"
2430 flashsv_decoder_select="zlib"
2431 flashsv_encoder_select="zlib"
2432 flv_decoder_select="h263_decoder"
2433 flv_encoder_select="h263_encoder"
2434 fourxm_decoder_select="blockdsp bswapdsp"
2435 fraps_decoder_select="bswapdsp huffman"
2436 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2437 g729_decoder_select="audiodsp"
2438 h261_decoder_select="mpegvideo"
2439 h261_encoder_select="aandcttables mpegvideoenc"
2440 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2441 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2442 h263i_decoder_select="h263_decoder"
2443 h263p_decoder_select="h263_decoder"
2444 h263p_encoder_select="h263_encoder"
2445 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2446 h264_decoder_suggest="error_resilience"
2447 hap_decoder_select="snappy texturedsp"
2448 hap_encoder_deps="libsnappy"
2449 hap_encoder_select="texturedspenc"
2450 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2451 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2452 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2453 iac_decoder_select="imc_decoder"
2454 imc_decoder_select="bswapdsp fft mdct sinewin"
2455 indeo3_decoder_select="hpeldsp"
2456 indeo4_decoder_select="ividsp"
2457 indeo5_decoder_select="ividsp"
2458 interplay_video_decoder_select="hpeldsp"
2459 jpegls_decoder_select="mjpeg_decoder"
2460 jv_decoder_select="blockdsp"
2461 lagarith_decoder_select="llviddsp"
2462 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2463 magicyuv_decoder_select="llviddsp"
2464 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2465 metasound_decoder_select="lsp mdct sinewin"
2466 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2467 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2468 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2469 mjpegb_decoder_select="mjpeg_decoder"
2470 mlp_decoder_select="mlp_parser"
2471 mlp_encoder_select="lpc"
2472 motionpixels_decoder_select="bswapdsp"
2473 mp1_decoder_select="mpegaudio"
2474 mp1float_decoder_select="mpegaudio"
2475 mp2_decoder_select="mpegaudio"
2476 mp2float_decoder_select="mpegaudio"
2477 mp3_decoder_select="mpegaudio"
2478 mp3adu_decoder_select="mpegaudio"
2479 mp3adufloat_decoder_select="mpegaudio"
2480 mp3float_decoder_select="mpegaudio"
2481 mp3on4_decoder_select="mpegaudio"
2482 mp3on4float_decoder_select="mpegaudio"
2483 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2484 mpc8_decoder_select="mpegaudiodsp"
2485 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2486 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2487 mpegvideo_decoder_select="mpegvideo"
2488 mpeg1video_decoder_select="mpegvideo"
2489 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2490 mpeg2video_decoder_select="mpegvideo"
2491 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2492 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2493 mpeg4_encoder_select="h263_encoder"
2494 msa1_decoder_select="mss34dsp"
2495 mscc_decoder_select="zlib"
2496 msmpeg4v1_decoder_select="h263_decoder"
2497 msmpeg4v2_decoder_select="h263_decoder"
2498 msmpeg4v2_encoder_select="h263_encoder"
2499 msmpeg4v3_decoder_select="h263_decoder"
2500 msmpeg4v3_encoder_select="h263_encoder"
2501 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2502 mts2_decoder_select="mss34dsp"
2503 mxpeg_decoder_select="mjpeg_decoder"
2504 nellymoser_decoder_select="mdct sinewin"
2505 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2506 nuv_decoder_select="idctdsp lzo"
2507 on2avc_decoder_select="mdct"
2508 opus_decoder_deps="swresample"
2509 opus_decoder_select="mdct15"
2510 opus_encoder_select="audio_frame_queue mdct15"
2511 png_decoder_select="zlib"
2512 png_encoder_select="llvidencdsp zlib"
2513 prores_decoder_select="blockdsp idctdsp"
2514 prores_encoder_select="fdctdsp"
2515 qcelp_decoder_select="lsp"
2516 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2517 ra_144_decoder_select="audiodsp"
2518 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2519 ralf_decoder_select="golomb"
2520 rawvideo_decoder_select="bswapdsp"
2521 rscc_decoder_select="zlib"
2522 rtjpeg_decoder_select="me_cmp"
2523 rv10_decoder_select="h263_decoder"
2524 rv10_encoder_select="h263_encoder"
2525 rv20_decoder_select="h263_decoder"
2526 rv20_encoder_select="h263_encoder"
2527 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2528 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2529 screenpresso_decoder_select="zlib"
2530 shorten_decoder_select="bswapdsp"
2531 sipr_decoder_select="lsp"
2532 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2533 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2534 sonic_decoder_select="golomb rangecoder"
2535 sonic_encoder_select="golomb rangecoder"
2536 sonic_ls_encoder_select="golomb rangecoder"
2537 sp5x_decoder_select="mjpeg_decoder"
2538 srgc_decoder_select="zlib"
2539 svq1_decoder_select="hpeldsp"
2540 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2541 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2542 svq3_decoder_suggest="zlib"
2543 tak_decoder_select="audiodsp"
2544 tdsc_decoder_select="zlib mjpeg_decoder"
2545 theora_decoder_select="vp3_decoder"
2546 thp_decoder_select="mjpeg_decoder"
2547 tiff_decoder_suggest="zlib lzma"
2548 tiff_encoder_suggest="zlib"
2549 truehd_decoder_select="mlp_parser"
2550 truehd_encoder_select="lpc"
2551 truemotion2_decoder_select="bswapdsp"
2552 truespeech_decoder_select="bswapdsp"
2553 tscc_decoder_select="zlib"
2554 twinvq_decoder_select="mdct lsp sinewin"
2555 txd_decoder_select="texturedsp"
2556 utvideo_decoder_select="bswapdsp llviddsp"
2557 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2558 vble_decoder_select="llviddsp"
2559 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2560 vc1_qsv_decoder_deps="libmfx"
2561 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2562 vc1image_decoder_select="vc1_decoder"
2563 vorbis_decoder_select="mdct"
2564 vorbis_encoder_select="mdct"
2565 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2566 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2567 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2568 vp6a_decoder_select="vp6_decoder"
2569 vp6f_decoder_select="vp6_decoder"
2570 vp7_decoder_select="h264pred videodsp vp8dsp"
2571 vp8_decoder_select="h264pred videodsp vp8dsp"
2572 vp9_decoder_select="videodsp vp9_parser"
2573 webp_decoder_select="vp8_decoder exif"
2574 wmalossless_decoder_select="llauddsp"
2575 wmapro_decoder_select="mdct sinewin wma_freqs"
2576 wmav1_decoder_select="mdct sinewin wma_freqs"
2577 wmav1_encoder_select="mdct sinewin wma_freqs"
2578 wmav2_decoder_select="mdct sinewin wma_freqs"
2579 wmav2_encoder_select="mdct sinewin wma_freqs"
2580 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2581 wmv1_decoder_select="h263_decoder"
2582 wmv1_encoder_select="h263_encoder"
2583 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2584 wmv2_encoder_select="h263_encoder wmv2dsp"
2585 wmv3_decoder_select="vc1_decoder"
2586 wmv3image_decoder_select="wmv3_decoder"
2587 xma1_decoder_select="wmapro_decoder"
2588 xma2_decoder_select="wmapro_decoder"
2589 zerocodec_decoder_select="zlib"
2590 zlib_decoder_select="zlib"
2591 zlib_encoder_select="zlib"
2592 zmbv_decoder_select="zlib"
2593 zmbv_encoder_select="zlib"
2594
2595 # platform codecs
2596 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2597 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2598
2599 # hardware accelerators
2600 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2601 cuda_deps_any="dlopen LoadLibrary"
2602 cuvid_deps="cuda"
2603 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2604 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2605 dxva2_extralibs="-luser32"
2606 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2607 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2608 vda_deps="vda_framework pthreads"
2609 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2610 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2611 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2612 xvmc_deps="X11_extensions_XvMClib_h"
2613
2614 h263_vaapi_hwaccel_deps="vaapi"
2615 h263_vaapi_hwaccel_select="h263_decoder"
2616 h263_videotoolbox_hwaccel_deps="videotoolbox"
2617 h263_videotoolbox_hwaccel_select="h263_decoder"
2618 h264_cuvid_hwaccel_deps="cuda cuvid"
2619 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2620 h264_d3d11va_hwaccel_deps="d3d11va"
2621 h264_d3d11va_hwaccel_select="h264_decoder"
2622 h264_d3d11va2_hwaccel_deps="d3d11va"
2623 h264_d3d11va2_hwaccel_select="h264_decoder"
2624 h264_dxva2_hwaccel_deps="dxva2"
2625 h264_dxva2_hwaccel_select="h264_decoder"
2626 h264_mediacodec_hwaccel_deps="mediacodec"
2627 h264_mmal_hwaccel_deps="mmal"
2628 h264_qsv_hwaccel_deps="libmfx"
2629 h264_vaapi_hwaccel_deps="vaapi"
2630 h264_vaapi_hwaccel_select="h264_decoder"
2631 h264_vda_hwaccel_deps="vda"
2632 h264_vda_hwaccel_select="h264_decoder"
2633 h264_vda_old_hwaccel_deps="vda"
2634 h264_vda_old_hwaccel_select="h264_decoder"
2635 h264_vdpau_hwaccel_deps="vdpau"
2636 h264_vdpau_hwaccel_select="h264_decoder"
2637 h264_videotoolbox_hwaccel_deps="videotoolbox"
2638 h264_videotoolbox_hwaccel_select="h264_decoder"
2639 hevc_cuvid_hwaccel_deps="cuda cuvid"
2640 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2641 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2642 hevc_d3d11va_hwaccel_select="hevc_decoder"
2643 hevc_mediacodec_hwaccel_deps="mediacodec"
2644 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2645 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2646 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2647 hevc_dxva2_hwaccel_select="hevc_decoder"
2648 hevc_qsv_hwaccel_deps="libmfx"
2649 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2650 hevc_vaapi_hwaccel_select="hevc_decoder"
2651 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2652 hevc_vdpau_hwaccel_select="hevc_decoder"
2653 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2654 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2655 mpeg_xvmc_hwaccel_deps="xvmc"
2656 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2657 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2658 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2659 mpeg1_vdpau_hwaccel_deps="vdpau"
2660 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2661 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2662 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2663 mpeg1_xvmc_hwaccel_deps="xvmc"
2664 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2665 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2666 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2667 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2668 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2669 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2670 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_dxva2_hwaccel_deps="dxva2"
2672 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2673 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2674 mpeg2_mmal_hwaccel_deps="mmal"
2675 mpeg2_qsv_hwaccel_deps="libmfx"
2676 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2677 mpeg2_vaapi_hwaccel_deps="vaapi"
2678 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2679 mpeg2_vdpau_hwaccel_deps="vdpau"
2680 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2681 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2682 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2683 mpeg2_xvmc_hwaccel_deps="xvmc"
2684 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2685 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2686 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2687 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2688 mpeg4_mmal_hwaccel_deps="mmal"
2689 mpeg4_vaapi_hwaccel_deps="vaapi"
2690 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2691 mpeg4_vdpau_hwaccel_deps="vdpau"
2692 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2693 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2694 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2695 vc1_cuvid_hwaccel_deps="cuda cuvid"
2696 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2697 vc1_d3d11va_hwaccel_deps="d3d11va"
2698 vc1_d3d11va_hwaccel_select="vc1_decoder"
2699 vc1_d3d11va2_hwaccel_deps="d3d11va"
2700 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2701 vc1_dxva2_hwaccel_deps="dxva2"
2702 vc1_dxva2_hwaccel_select="vc1_decoder"
2703 vc1_mmal_hwaccel_deps="mmal"
2704 vc1_qsv_hwaccel_deps="libmfx"
2705 vc1_qsv_hwaccel_select="qsvdec_vc1"
2706 vc1_vaapi_hwaccel_deps="vaapi"
2707 vc1_vaapi_hwaccel_select="vc1_decoder"
2708 vc1_vdpau_hwaccel_deps="vdpau"
2709 vc1_vdpau_hwaccel_select="vc1_decoder"
2710 vp8_cuvid_hwaccel_deps="cuda cuvid"
2711 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2712 vp9_cuvid_hwaccel_deps="cuda cuvid"
2713 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2714 vp8_mediacodec_hwaccel_deps="mediacodec"
2715 vp8_qsv_hwaccel_deps="libmfx"
2716 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2717 vp9_d3d11va_hwaccel_select="vp9_decoder"
2718 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2719 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2720 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2721 vp9_dxva2_hwaccel_select="vp9_decoder"
2722 vp9_mediacodec_hwaccel_deps="mediacodec"
2723 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2724 vp9_vaapi_hwaccel_select="vp9_decoder"
2725 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2726 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2727 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2728 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2729 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2730
2731 # hardware-accelerated codecs
2732 omx_deps="dlopen pthreads"
2733 omx_extralibs='$ldl'
2734 omx_rpi_select="omx"
2735 qsvdec_select="qsv"
2736 qsvenc_select="qsv"
2737 vaapi_encode_deps="vaapi"
2738
2739 hwupload_cuda_filter_deps="cuda"
2740 scale_npp_filter_deps="cuda libnpp"
2741 scale_cuda_filter_deps="cuda_sdk"
2742
2743 nvenc_deps="cuda"
2744 nvenc_deps_any="dlopen LoadLibrary"
2745 nvenc_encoder_deps="nvenc"
2746
2747 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2748 h264_cuvid_decoder_deps="cuda cuvid"
2749 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2750 h264_mediacodec_decoder_deps="mediacodec"
2751 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2752 h264_mmal_decoder_deps="mmal"
2753 h264_nvenc_encoder_deps="nvenc"
2754 h264_omx_encoder_deps="omx"
2755 h264_qsv_decoder_deps="libmfx"
2756 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2757 h264_qsv_encoder_deps="libmfx"
2758 h264_qsv_encoder_select="qsvenc"
2759 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2760 h264_vaapi_encoder_select="vaapi_encode golomb"
2761 h264_vda_decoder_deps="vda"
2762 h264_vda_decoder_select="h264_decoder"
2763 h264_vdpau_decoder_deps="vdpau"
2764 h264_vdpau_decoder_select="h264_decoder"
2765 hevc_cuvid_decoder_deps="cuda cuvid"
2766 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2767 hevc_mediacodec_decoder_deps="mediacodec"
2768 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2769 hevc_nvenc_encoder_deps="nvenc"
2770 hevc_qsv_decoder_deps="libmfx"
2771 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2772 hevc_qsv_encoder_deps="libmfx"
2773 hevc_qsv_encoder_select="hevcparse qsvenc"
2774 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2775 hevc_vaapi_encoder_select="vaapi_encode golomb"
2776 mjpeg_cuvid_decoder_deps="cuda cuvid"
2777 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2778 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2779 mpeg1_cuvid_decoder_deps="cuda cuvid"
2780 mpeg1_vdpau_decoder_deps="vdpau"
2781 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2782 mpeg2_crystalhd_decoder_select="crystalhd"
2783 mpeg2_cuvid_decoder_deps="cuda cuvid"
2784 mpeg2_mmal_decoder_deps="mmal"
2785 mpeg2_mediacodec_decoder_deps="mediacodec"
2786 mpeg2_qsv_decoder_deps="libmfx"
2787 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2788 mpeg2_qsv_encoder_deps="libmfx"
2789 mpeg2_qsv_encoder_select="qsvenc"
2790 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2791 mpeg2_vaapi_encoder_select="vaapi_encode"
2792 mpeg4_crystalhd_decoder_select="crystalhd"
2793 mpeg4_cuvid_decoder_deps="cuda cuvid"
2794 mpeg4_mediacodec_decoder_deps="mediacodec"
2795 mpeg4_mmal_decoder_deps="mmal"
2796 mpeg4_omx_encoder_deps="omx"
2797 mpeg4_vdpau_decoder_deps="vdpau"
2798 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2799 mpeg_vdpau_decoder_deps="vdpau"
2800 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2801 msmpeg4_crystalhd_decoder_select="crystalhd"
2802 nvenc_h264_encoder_select="h264_nvenc_encoder"
2803 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2804 vc1_crystalhd_decoder_select="crystalhd"
2805 vc1_cuvid_decoder_deps="cuda cuvid"
2806 vc1_mmal_decoder_deps="mmal"
2807 vc1_vdpau_decoder_deps="vdpau"
2808 vc1_vdpau_decoder_select="vc1_decoder"
2809 vp8_cuvid_decoder_deps="cuda cuvid"
2810 vp8_mediacodec_decoder_deps="mediacodec"
2811 vp8_qsv_decoder_deps="libmfx"
2812 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2813 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2814 vp8_vaapi_encoder_select="vaapi_encode"
2815 vp9_cuvid_decoder_deps="cuda cuvid"
2816 vp9_mediacodec_decoder_deps="mediacodec"
2817 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2818 vp9_vaapi_encoder_select="vaapi_encode"
2819 wmv3_crystalhd_decoder_select="crystalhd"
2820 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2821
2822 # parsers
2823 h264_parser_select="golomb h264dsp h264parse"
2824 hevc_parser_select="hevcparse"
2825 mpegaudio_parser_select="mpegaudioheader"
2826 mpegvideo_parser_select="mpegvideo"
2827 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2828 vc1_parser_select="vc1dsp"
2829
2830 # bitstream_filters
2831 mjpeg2jpeg_bsf_select="jpegtables"
2832
2833 # external libraries
2834 aac_at_decoder_deps="audiotoolbox"
2835 ac3_at_decoder_deps="audiotoolbox"
2836 ac3_at_decoder_select="ac3_parser"
2837 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2838 alac_at_decoder_deps="audiotoolbox"
2839 amr_nb_at_decoder_deps="audiotoolbox"
2840 avisynth_deps_any="dlopen LoadLibrary"
2841 avisynth_demuxer_deps="avisynth"
2842 avisynth_demuxer_select="riffdec"
2843 eac3_at_decoder_deps="audiotoolbox"
2844 eac3_at_decoder_select="ac3_parser"
2845 gsm_ms_at_decoder_deps="audiotoolbox"
2846 ilbc_at_decoder_deps="audiotoolbox"
2847 mp1_at_decoder_deps="audiotoolbox"
2848 mp2_at_decoder_deps="audiotoolbox"
2849 mp3_at_decoder_deps="audiotoolbox"
2850 mp1_at_decoder_select="mpegaudioheader"
2851 mp2_at_decoder_select="mpegaudioheader"
2852 mp3_at_decoder_select="mpegaudioheader"
2853 pcm_alaw_at_decoder_deps="audiotoolbox"
2854 pcm_mulaw_at_decoder_deps="audiotoolbox"
2855 qdmc_at_decoder_deps="audiotoolbox"
2856 qdm2_at_decoder_deps="audiotoolbox"
2857 aac_at_encoder_deps="audiotoolbox"
2858 aac_at_encoder_select="audio_frame_queue"
2859 alac_at_encoder_deps="audiotoolbox"
2860 alac_at_encoder_select="audio_frame_queue"
2861 ilbc_at_encoder_deps="audiotoolbox"
2862 ilbc_at_encoder_select="audio_frame_queue"
2863 pcm_alaw_at_encoder_deps="audiotoolbox"
2864 pcm_alaw_at_encoder_select="audio_frame_queue"
2865 pcm_mulaw_at_encoder_deps="audiotoolbox"
2866 pcm_mulaw_at_encoder_select="audio_frame_queue"
2867 chromaprint_muxer_deps="chromaprint"
2868 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2869 libcelt_decoder_deps="libcelt"
2870 libfdk_aac_decoder_deps="libfdk_aac"
2871 libfdk_aac_encoder_deps="libfdk_aac"
2872 libfdk_aac_encoder_select="audio_frame_queue"
2873 libgme_demuxer_deps="libgme"
2874 libgsm_decoder_deps="libgsm"
2875 libgsm_encoder_deps="libgsm"
2876 libgsm_ms_decoder_deps="libgsm"
2877 libgsm_ms_encoder_deps="libgsm"
2878 libilbc_decoder_deps="libilbc"
2879 libilbc_encoder_deps="libilbc"
2880 libkvazaar_encoder_deps="libkvazaar"
2881 libmodplug_demuxer_deps="libmodplug"
2882 libmp3lame_encoder_deps="libmp3lame"
2883 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2884 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2885 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2886 libopencore_amrnb_encoder_select="audio_frame_queue"
2887 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2888 libopenh264_decoder_deps="libopenh264"
2889 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2890 libopenh264_encoder_deps="libopenh264"
2891 libopenjpeg_decoder_deps="libopenjpeg"
2892 libopenjpeg_encoder_deps="libopenjpeg"
2893 libopenmpt_demuxer_deps="libopenmpt"
2894 libopus_decoder_deps="libopus"
2895 libopus_encoder_deps="libopus"
2896 libopus_encoder_select="audio_frame_queue"
2897 librsvg_decoder_deps="librsvg"
2898 libshine_encoder_deps="libshine"
2899 libshine_encoder_select="audio_frame_queue"
2900 libspeex_decoder_deps="libspeex"
2901 libspeex_encoder_deps="libspeex"
2902 libspeex_encoder_select="audio_frame_queue"
2903 libtheora_encoder_deps="libtheora"
2904 libtwolame_encoder_deps="libtwolame"
2905 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2906 libvorbis_decoder_deps="libvorbis"
2907 libvorbis_encoder_deps="libvorbis"
2908 libvorbis_encoder_select="audio_frame_queue"
2909 libvpx_vp8_decoder_deps="libvpx"
2910 libvpx_vp8_encoder_deps="libvpx"
2911 libvpx_vp9_decoder_deps="libvpx"
2912 libvpx_vp9_encoder_deps="libvpx"
2913 libwavpack_encoder_deps="libwavpack"
2914 libwavpack_encoder_select="audio_frame_queue"
2915 libwebp_encoder_deps="libwebp"
2916 libwebp_anim_encoder_deps="libwebp"
2917 libx262_encoder_deps="libx262"
2918 libx264_encoder_deps="libx264"
2919 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2920 libx264rgb_encoder_select="libx264_encoder"
2921 libx265_encoder_deps="libx265"
2922 libxavs_encoder_deps="libxavs"
2923 libxvid_encoder_deps="libxvid"
2924 libzvbi_teletext_decoder_deps="libzvbi"
2925 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2926 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2927 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2928 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2929 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2930
2931 # demuxers / muxers
2932 ac3_demuxer_select="ac3_parser"
2933 aiff_muxer_select="iso_media"
2934 asf_demuxer_select="riffdec"
2935 asf_o_demuxer_select="riffdec"
2936 asf_muxer_select="riffenc"
2937 asf_stream_muxer_select="asf_muxer"
2938 avi_demuxer_select="iso_media riffdec exif"
2939 avi_muxer_select="riffenc"
2940 caf_demuxer_select="iso_media riffdec"
2941 caf_muxer_select="iso_media"
2942 dash_muxer_select="mp4_muxer"
2943 dirac_demuxer_select="dirac_parser"
2944 dts_demuxer_select="dca_parser"
2945 dtshd_demuxer_select="dca_parser"
2946 dv_demuxer_select="dvprofile"
2947 dv_muxer_select="dvprofile"
2948 dxa_demuxer_select="riffdec"
2949 eac3_demuxer_select="ac3_parser"
2950 f4v_muxer_select="mov_muxer"
2951 fifo_muxer_deps="threads"
2952 flac_demuxer_select="flac_parser"
2953 hds_muxer_select="flv_muxer"
2954 hls_muxer_select="mpegts_muxer"
2955 image2_alias_pix_demuxer_select="image2_demuxer"
2956 image2_brender_pix_demuxer_select="image2_demuxer"
2957 ipod_muxer_select="mov_muxer"
2958 ismv_muxer_select="mov_muxer"
2959 matroska_audio_muxer_select="matroska_muxer"
2960 matroska_demuxer_select="iso_media riffdec"
2961 matroska_demuxer_suggest="bzlib lzo zlib"
2962 matroska_muxer_select="iso_media riffenc"
2963 mmf_muxer_select="riffenc"
2964 mov_demuxer_select="iso_media riffdec"
2965 mov_demuxer_suggest="zlib"
2966 mov_muxer_select="iso_media riffenc rtpenc_chain"
2967 mp3_demuxer_select="mpegaudio_parser"
2968 mp3_muxer_select="mpegaudioheader"
2969 mp4_muxer_select="mov_muxer"
2970 mpegts_demuxer_select="iso_media"
2971 mpegts_muxer_select="adts_muxer latm_muxer"
2972 mpegtsraw_demuxer_select="mpegts_demuxer"
2973 mxf_d10_muxer_select="mxf_muxer"
2974 mxf_opatom_muxer_select="mxf_muxer"
2975 nut_muxer_select="riffenc"
2976 nuv_demuxer_select="riffdec"
2977 oga_muxer_select="ogg_muxer"
2978 ogg_demuxer_select="dirac_parse"
2979 ogv_muxer_select="ogg_muxer"
2980 opus_muxer_select="ogg_muxer"
2981 psp_muxer_select="mov_muxer"
2982 rtp_demuxer_select="sdp_demuxer"
2983 rtp_muxer_select="golomb"
2984 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2985 rtsp_demuxer_select="http_protocol rtpdec"
2986 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2987 sap_demuxer_select="sdp_demuxer"
2988 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2989 sdp_demuxer_select="rtpdec"
2990 smoothstreaming_muxer_select="ismv_muxer"
2991 spdif_muxer_select="aac_parser"
2992 spx_muxer_select="ogg_muxer"
2993 swf_demuxer_suggest="zlib"
2994 tak_demuxer_select="tak_parser"
2995 tg2_muxer_select="mov_muxer"
2996 tgp_muxer_select="mov_muxer"
2997 vobsub_demuxer_select="mpegps_demuxer"
2998 w64_demuxer_select="wav_demuxer"
2999 w64_muxer_select="wav_muxer"
3000 wav_demuxer_select="riffdec"
3001 wav_muxer_select="riffenc"
3002 webm_muxer_select="iso_media riffenc"
3003 webm_dash_manifest_demuxer_select="matroska_demuxer"
3004 wtv_demuxer_select="mpegts_demuxer riffdec"
3005 wtv_muxer_select="mpegts_muxer riffenc"
3006 xmv_demuxer_select="riffdec"
3007 xwma_demuxer_select="riffdec"
3008
3009 # indevs / outdevs
3010 alsa_indev_deps="alsa"
3011 alsa_outdev_deps="alsa"
3012 avfoundation_indev_deps="pthreads"
3013 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
3014 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3015 caca_outdev_deps="libcaca"
3016 decklink_indev_deps="decklink threads"
3017 decklink_indev_extralibs="-lstdc++"
3018 decklink_outdev_deps="decklink threads"
3019 decklink_outdev_extralibs="-lstdc++"
3020 libndi_newtek_indev_deps="libndi_newtek"
3021 libndi_newtek_indev_extralibs="-lndi"
3022 libndi_newtek_outdev_deps="libndi_newtek"
3023 libndi_newtek_outdev_extralibs="-lndi"
3024 dshow_indev_deps="IBaseFilter"
3025 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3026 dv1394_indev_deps="dv1394"
3027 dv1394_indev_select="dv_demuxer"
3028 fbdev_indev_deps="linux_fb_h"
3029 fbdev_outdev_deps="linux_fb_h"
3030 gdigrab_indev_deps="CreateDIBSection"
3031 gdigrab_indev_extralibs="-lgdi32"
3032 gdigrab_indev_select="bmp_decoder"
3033 iec61883_indev_deps="libiec61883"
3034 jack_indev_deps="jack"
3035 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3036 lavfi_indev_deps="avfilter"
3037 libcdio_indev_deps="libcdio"
3038 libdc1394_indev_deps="libdc1394"
3039 libv4l2_indev_deps="libv4l2"
3040 openal_indev_deps="openal"
3041 opengl_outdev_deps="opengl"
3042 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3043 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3044 pulse_indev_deps="libpulse"
3045 pulse_outdev_deps="libpulse"
3046 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3047 qtkit_indev_select="qtkit"
3048 sdl2_outdev_deps="sdl2"
3049 sndio_indev_deps="sndio"
3050 sndio_outdev_deps="sndio"
3051 v4l_indev_deps="linux_videodev_h"
3052 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3053 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3054 vfwcap_indev_deps="vfw32 vfwcap_defines"
3055 xcbgrab_indev_deps="libxcb"
3056 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3057 xv_outdev_extralibs="-lXv -lX11 -lXext"
3058
3059 # protocols
3060 async_protocol_deps="threads"
3061 bluray_protocol_deps="libbluray"
3062 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3063 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3064 ffrtmpcrypt_protocol_select="tcp_protocol"
3065 ffrtmphttp_protocol_deps="!librtmp_protocol"
3066 ffrtmphttp_protocol_select="http_protocol"
3067 ftp_protocol_select="tcp_protocol"
3068 gopher_protocol_select="network"
3069 http_protocol_select="tcp_protocol"
3070 httpproxy_protocol_select="tcp_protocol"
3071 https_protocol_select="tls_protocol"
3072 icecast_protocol_select="http_protocol"
3073 librtmp_protocol_deps="librtmp"
3074 librtmpe_protocol_deps="librtmp"
3075 librtmps_protocol_deps="librtmp"
3076 librtmpt_protocol_deps="librtmp"
3077 librtmpte_protocol_deps="librtmp"
3078 libsmbclient_protocol_deps="libsmbclient gplv3"
3079 libssh_protocol_deps="libssh"
3080 mmsh_protocol_select="http_protocol"
3081 mmst_protocol_select="network"
3082 rtmp_protocol_deps="!librtmp_protocol"
3083 rtmp_protocol_select="tcp_protocol"
3084 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3085 rtmps_protocol_deps="!librtmp_protocol"
3086 rtmps_protocol_select="tls_protocol"
3087 rtmpt_protocol_select="ffrtmphttp_protocol"
3088 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3089 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3090 rtp_protocol_select="udp_protocol"
3091 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3092 sctp_protocol_select="network"
3093 srtp_protocol_select="rtp_protocol srtp"
3094 tcp_protocol_select="network"
3095 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3096 tls_gnutls_protocol_select="tcp_protocol"
3097 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3098 tls_openssl_protocol_select="tcp_protocol"
3099 tls_schannel_protocol_deps="schannel"
3100 tls_schannel_protocol_select="tcp_protocol"
3101 tls_securetransport_protocol_deps="securetransport"
3102 tls_securetransport_protocol_select="tcp_protocol"
3103 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3104 udp_protocol_select="network"
3105 udplite_protocol_select="network"
3106 unix_protocol_deps="sys_un_h"
3107 unix_protocol_select="network"
3108
3109 # filters
3110 afftfilt_filter_deps="avcodec"
3111 afftfilt_filter_select="fft"
3112 afir_filter_deps="avcodec"
3113 afir_filter_select="fft"
3114 amovie_filter_deps="avcodec avformat"
3115 aresample_filter_deps="swresample"
3116 ass_filter_deps="libass"
3117 atempo_filter_deps="avcodec"
3118 atempo_filter_select="rdft"
3119 azmq_filter_deps="libzmq"
3120 blackframe_filter_deps="gpl"
3121 boxblur_filter_deps="gpl"
3122 bs2b_filter_deps="libbs2b"
3123 colormatrix_filter_deps="gpl"
3124 cover_rect_filter_deps="avcodec avformat gpl"
3125 cropdetect_filter_deps="gpl"
3126 deinterlace_qsv_filter_deps="libmfx"
3127 deinterlace_vaapi_filter_deps="vaapi"
3128 delogo_filter_deps="gpl"
3129 deshake_filter_select="pixelutils"
3130 drawtext_filter_deps="libfreetype"
3131 elbg_filter_deps="avcodec"
3132 eq_filter_deps="gpl"
3133 fftfilt_filter_deps="avcodec"
3134 fftfilt_filter_select="rdft"
3135 find_rect_filter_deps="avcodec avformat gpl"
3136 firequalizer_filter_deps="avcodec"
3137 firequalizer_filter_select="rdft"
3138 flite_filter_deps="libflite"
3139 framerate_filter_select="pixelutils"
3140 frei0r_filter_deps="frei0r dlopen"
3141 frei0r_src_filter_deps="frei0r dlopen"
3142 fspp_filter_deps="gpl"
3143 geq_filter_deps="gpl"
3144 histeq_filter_deps="gpl"
3145 hqdn3d_filter_deps="gpl"
3146 interlace_filter_deps="gpl"
3147 kerndeint_filter_deps="gpl"
3148 ladspa_filter_deps="ladspa dlopen"
3149 mcdeint_filter_deps="avcodec gpl"
3150 movie_filter_deps="avcodec avformat"
3151 mpdecimate_filter_deps="gpl"
3152 mpdecimate_filter_select="pixelutils"
3153 mptestsrc_filter_deps="gpl"
3154 negate_filter_deps="lut_filter"
3155 nnedi_filter_deps="gpl"
3156 ocr_filter_deps="libtesseract"
3157 ocv_filter_deps="libopencv"
3158 owdenoise_filter_deps="gpl"
3159 pan_filter_deps="swresample"
3160 perspective_filter_deps="gpl"
3161 phase_filter_deps="gpl"
3162 pp7_filter_deps="gpl"
3163 pp_filter_deps="gpl postproc"
3164 pullup_filter_deps="gpl"
3165 removelogo_filter_deps="avcodec avformat swscale"
3166 repeatfields_filter_deps="gpl"
3167 resample_filter_deps="avresample"
3168 rubberband_filter_deps="librubberband"
3169 sab_filter_deps="gpl swscale"
3170 scale2ref_filter_deps="swscale"
3171 scale_filter_deps="swscale"
3172 scale_qsv_filter_deps="libmfx"
3173 select_filter_select="pixelutils"
3174 showcqt_filter_deps="avcodec avformat swscale"
3175 showcqt_filter_select="fft"
3176 showfreqs_filter_deps="avcodec"
3177 showfreqs_filter_select="fft"
3178 showspectrum_filter_deps="avcodec"
3179 showspectrum_filter_select="fft"
3180 showspectrumpic_filter_deps="avcodec"
3181 showspectrumpic_filter_select="fft"
3182 signature_filter_deps="gpl avcodec avformat"
3183 smartblur_filter_deps="gpl swscale"
3184 sofalizer_filter_deps="libmysofa avcodec"
3185 sofalizer_filter_select="fft"
3186 spectrumsynth_filter_deps="avcodec"
3187 spectrumsynth_filter_select="fft"
3188 spp_filter_deps="gpl avcodec"
3189 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3190 stereo3d_filter_deps="gpl"
3191 subtitles_filter_deps="avformat avcodec libass"
3192 super2xsai_filter_deps="gpl"
3193 pixfmts_super2xsai_test_deps="super2xsai_filter"
3194 tinterlace_filter_deps="gpl"
3195 tinterlace_merge_test_deps="tinterlace_filter"
3196 tinterlace_pad_test_deps="tinterlace_filter"
3197 uspp_filter_deps="gpl avcodec"
3198 vaguedenoiser_filter_deps="gpl"
3199 vidstabdetect_filter_deps="libvidstab"
3200 vidstabtransform_filter_deps="libvidstab"
3201 libvmaf_filter_deps="libvmaf"
3202 zmq_filter_deps="libzmq"
3203 zoompan_filter_deps="swscale"
3204 zscale_filter_deps="libzimg"
3205 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3206
3207 # examples
3208 avio_dir_cmd_deps="avformat avutil"
3209 avio_reading_deps="avformat avcodec avutil"
3210 decode_audio_example_deps="avcodec avutil"
3211 decode_video_example_deps="avcodec avutil"
3212 demuxing_decoding_example_deps="avcodec avformat avutil"
3213 encode_audio_example_deps="avcodec avutil"
3214 encode_video_example_deps="avcodec avutil"
3215 extract_mvs_example_deps="avcodec avformat avutil"
3216 filter_audio_example_deps="avfilter avutil"
3217 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3218 filtering_video_example_deps="avfilter avcodec avformat avutil"
3219 http_multiclient_example_deps="avformat avutil fork"
3220 hw_decode_example_deps="avcodec avformat avutil"
3221 metadata_example_deps="avformat avutil"
3222 muxing_example_deps="avcodec avformat avutil swscale"
3223 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3224 remuxing_example_deps="avcodec avformat avutil"
3225 resampling_audio_example_deps="avutil swresample"
3226 scaling_video_example_deps="avutil swscale"
3227 transcode_aac_example_deps="avcodec avformat swresample"
3228 transcoding_example_deps="avfilter avcodec avformat avutil"
3229
3230 # libraries, in linking order
3231 avcodec_deps="avutil"
3232 avcodec_select="null_bsf"
3233 avdevice_deps="avformat avcodec avutil"
3234 avfilter_deps="avutil"
3235 avformat_deps="avcodec avutil"
3236 avresample_deps="avutil"
3237 postproc_deps="avutil gpl"
3238 swresample_deps="avutil"
3239 swscale_deps="avutil"
3240
3241 # programs
3242 ffmpeg_deps="avcodec avfilter avformat swresample"
3243 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3244                null_filter
3245                trim_filter"
3246 ffplay_deps="avcodec avformat swscale swresample sdl2"
3247 ffplay_extralibs='$sdl2_extralibs'
3248 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3249 ffprobe_deps="avcodec avformat"
3250 ffserver_deps="avformat fork sarestart"
3251 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3252
3253 # documentation
3254 podpages_deps="perl"
3255 manpages_deps="perl pod2man"
3256 htmlpages_deps="perl"
3257 htmlpages_deps_any="makeinfo_html texi2html"
3258 txtpages_deps="perl makeinfo"
3259 doc_deps_any="manpages htmlpages podpages txtpages"
3260
3261 # default parameters
3262
3263 logfile="ffbuild/config.log"
3264
3265 # installation paths
3266 prefix_default="/usr/local"
3267 bindir_default='${prefix}/bin'
3268 datadir_default='${prefix}/share/ffmpeg'
3269 docdir_default='${prefix}/share/doc/ffmpeg'
3270 incdir_default='${prefix}/include'
3271 libdir_default='${prefix}/lib'
3272 mandir_default='${prefix}/share/man'
3273
3274 # toolchain
3275 ar_default="ar"
3276 cc_default="gcc"
3277 cxx_default="g++"
3278 host_cc_default="gcc"
3279 doxygen_default="doxygen"
3280 install="install"
3281 ln_s_default="ln -s -f"
3282 nm_default="nm -g"
3283 pkg_config_default=pkg-config
3284 ranlib_default="ranlib"
3285 strip_default="strip"
3286 version_script='--version-script'
3287 x86asmexe_default="nasm"
3288 windres_default="windres"
3289 nvcc_default="nvcc"
3290 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3291
3292 # OS
3293 target_os_default=$(tolower $(uname -s))
3294 host_os=$target_os_default
3295
3296 # machine
3297 if test "$target_os_default" = aix; then
3298     arch_default=$(uname -p)
3299     strip_default="strip -X32_64"
3300 else
3301     arch_default=$(uname -m)
3302 fi
3303 cpu="generic"
3304 intrinsics="none"
3305
3306 # configurable options
3307 enable $PROGRAM_LIST
3308 enable $DOCUMENT_LIST
3309 enable $EXAMPLE_LIST
3310 enable $(filter_out avresample $LIBRARY_LIST)
3311 enable stripping
3312
3313 enable asm
3314 enable debug
3315 enable doc
3316 enable faan faandct faanidct
3317 enable optimizations
3318 enable runtime_cpudetect
3319 enable safe_bitstream_reader
3320 enable static
3321 enable swscale_alpha
3322 enable valgrind_backtrace
3323
3324 sws_max_filter_size_default=256
3325 set_default sws_max_filter_size
3326
3327 # build settings
3328 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3329 LIBPREF="lib"
3330 LIBSUF=".a"
3331 FULLNAME='$(NAME)$(BUILDSUF)'
3332 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3333 SLIBPREF="lib"
3334 SLIBSUF=".so"
3335 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3336 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3337 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3338 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3339 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3340 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3341 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3342
3343 asflags_filter=echo
3344 cflags_filter=echo
3345 ldflags_filter=echo
3346
3347 AS_C='-c'
3348 AS_O='-o $@'
3349 CC_C='-c'
3350 CC_E='-E -o $@'
3351 CC_O='-o $@'
3352 CXX_C='-c'
3353 CXX_O='-o $@'
3354 OBJCC_C='-c'
3355 OBJCC_E='-E -o $@'
3356 OBJCC_O='-o $@'
3357 X86ASM_O='-o $@'
3358 LD_O='-o $@'
3359 LD_LIB='-l%'
3360 LD_PATH='-L'
3361 HOSTCC_C='-c'
3362 HOSTCC_E='-E -o $@'
3363 HOSTCC_O='-o $@'
3364 HOSTLD_O='-o $@'
3365 NVCC_C='-c'
3366 NVCC_O='-o $@'
3367
3368 host_extralibs='-lm'
3369 host_cflags_filter=echo
3370 host_ldflags_filter=echo
3371
3372 target_path='$(CURDIR)'
3373
3374 # since the object filename is not given with the -MM flag, the compiler
3375 # is only able to print the basename, and we must add the path ourselves
3376 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3377 DEPFLAGS='-MM'
3378
3379 mkdir -p ffbuild
3380
3381 # find source path
3382 if test -f configure; then
3383     source_path=.
3384 else
3385     source_path=$(cd $(dirname "$0"); pwd)
3386     case "$source_path" in
3387         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3388     esac
3389     test -e "$source_path/config.h" &&
3390         die "Out of tree builds are impossible with config.h in source dir."
3391 fi
3392
3393 for v in "$@"; do
3394     r=${v#*=}
3395     l=${v%"$r"}
3396     r=$(sh_quote "$r")
3397     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3398 done
3399
3400 find_things(){
3401     thing=$1
3402     pattern=$2
3403     file=$source_path/$3
3404     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3405 }
3406
3407 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3408 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3409 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3410 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3411 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3412 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3413 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3414 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3415 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3416
3417 find_things_extern(){
3418     thing=$1
3419     pattern=$2
3420     file=$source_path/$3
3421     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3422 }
3423
3424 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3425 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3426
3427 ALL_COMPONENTS="
3428     $BSF_LIST
3429     $DECODER_LIST
3430     $DEMUXER_LIST
3431     $ENCODER_LIST
3432     $FILTER_LIST
3433     $HWACCEL_LIST
3434     $INDEV_LIST
3435     $MUXER_LIST
3436     $OUTDEV_LIST
3437     $PARSER_LIST
3438     $PROTOCOL_LIST
3439 "
3440
3441 for n in $COMPONENT_LIST; do
3442     v=$(toupper ${n%s})_LIST
3443     eval enable \$$v
3444     eval ${n}_if_any="\$$v"
3445 done
3446
3447 enable $ARCH_EXT_LIST
3448
3449 die_unknown(){
3450     echo "Unknown option \"$1\"."
3451     echo "See $0 --help for available options."
3452     exit 1
3453 }
3454
3455 print_in_columns() {
3456     cols=$(expr $ncols / 24)
3457     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3458 }
3459
3460 show_list() {
3461     suffix=_$1
3462     shift
3463     echo $* | sed s/$suffix//g | print_in_columns
3464     exit 0
3465 }
3466
3467 rand_list(){
3468     IFS=', '
3469     set -- $*
3470     unset IFS
3471     for thing; do
3472         comp=${thing%:*}
3473         prob=${thing#$comp}
3474         prob=${prob#:}
3475         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3476         echo "prob ${prob:-0.5}"
3477         printf '%s\n' $comp
3478     done
3479 }
3480
3481 do_random(){
3482     action=$1
3483     shift
3484     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3485     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3486 }
3487
3488 for opt do
3489     optval="${opt#*=}"
3490     case "$opt" in
3491         --extra-ldflags=*)
3492             add_ldflags $optval
3493         ;;
3494         --extra-ldexeflags=*)
3495             add_ldexeflags $optval
3496         ;;
3497         --extra-ldlibflags=*)
3498             add_ldlibflags $optval
3499         ;;
3500         --extra-libs=*)
3501             add_extralibs $optval
3502         ;;
3503         --disable-devices)
3504             disable $INDEV_LIST $OUTDEV_LIST
3505         ;;
3506         --enable-debug=*)
3507             debuglevel="$optval"
3508         ;;
3509         --disable-programs)
3510             disable $PROGRAM_LIST
3511         ;;
3512         --disable-everything)
3513             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3514         ;;
3515         --disable-all)
3516             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3517             disable $LIBRARY_LIST $PROGRAM_LIST doc
3518             enable avutil
3519         ;;
3520         --enable-random|--disable-random)
3521             action=${opt%%-random}
3522             do_random ${action#--} $COMPONENT_LIST
3523         ;;
3524         --enable-random=*|--disable-random=*)
3525             action=${opt%%-random=*}
3526             do_random ${action#--} $optval
3527         ;;
3528         --enable-sdl)
3529             enable sdl2
3530         ;;
3531         --enable-*=*|--disable-*=*)
3532             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3533             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3534             eval list=\$$(toupper $thing)_LIST
3535             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3536             list=$(filter "$name" $list)
3537             [ "$list" = "" ] && warn "Option $opt did not match anything"
3538             $action $list
3539         ;;
3540         --enable-yasm|--disable-yasm)
3541             warn "The ${opt} option is only provided for compatibility and will be\n"\
3542                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3543             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3544         ;;
3545         --yasmexe=*)
3546             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3547                  "removed in the future. Use --x86asmexe instead."
3548             x86asmexe="$optval"
3549         ;;
3550         --enable-?*|--disable-?*)
3551             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3552             if is_in $option $COMPONENT_LIST; then
3553                 test $action = disable && action=unset
3554                 eval $action \$$(toupper ${option%s})_LIST
3555             elif is_in $option $CMDLINE_SELECT; then
3556                 $action $option
3557             else
3558                 die_unknown $opt
3559             fi
3560         ;;
3561         --list-*)
3562             NAME="${opt#--list-}"
3563             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3564             NAME=${NAME%s}
3565             eval show_list $NAME \$$(toupper $NAME)_LIST
3566         ;;
3567         --help|-h) show_help
3568         ;;
3569         --quiet|-q) quiet=yes
3570         ;;
3571         --fatal-warnings) enable fatal_warnings
3572         ;;
3573         --libfuzzer=*)
3574             libfuzzer_path="$optval"
3575         ;;
3576         *)
3577             optname="${opt%%=*}"
3578             optname="${optname#--}"
3579             optname=$(echo "$optname" | sed 's/-/_/g')
3580             if is_in $optname $CMDLINE_SET; then
3581                 eval $optname='$optval'
3582             elif is_in $optname $CMDLINE_APPEND; then
3583                 append $optname "$optval"
3584             else
3585                 die_unknown $opt
3586             fi
3587         ;;
3588     esac
3589 done
3590
3591 for e in $env; do
3592     eval "export $e"
3593 done
3594
3595 if disabled autodetect; then
3596
3597     # Unless iconv is explicitely disabled by the user, we still want to probe
3598     # for the iconv from the libc.
3599     disabled iconv || enable libc_iconv
3600
3601     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3602     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3603 fi
3604 # Mark specifically enabled, but normally autodetected libraries as requested.
3605 for lib in $AUTODETECT_LIBS; do
3606     enabled $lib && request $lib
3607 done
3608 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3609 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3610 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3611
3612 disabled logging && logfile=/dev/null
3613
3614 die_license_disabled() {
3615     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3616 }
3617
3618 die_license_disabled_gpl() {
3619     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3620 }
3621
3622 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3623 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3624
3625 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3626 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3627
3628 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3629
3630 # Disable all the library-specific components if the library itself
3631 # is disabled, see AVCODEC_LIST and following _LIST variables.
3632
3633 disable_components(){
3634     disabled ${1} && disable $(
3635         eval components="\$$(toupper ${1})_COMPONENTS"
3636         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3637     )
3638 }
3639
3640 map 'disable_components $v' $LIBRARY_LIST
3641
3642 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3643 set >> $logfile
3644
3645 test -n "$valgrind" && toolchain="valgrind-memcheck"
3646
3647 enabled ossfuzz && {
3648     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3649     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3650 }
3651
3652 case "$toolchain" in
3653     *-asan)
3654         cc_default="${toolchain%-asan}"
3655         add_cflags  -fsanitize=address
3656         add_ldflags -fsanitize=address
3657     ;;
3658     *-msan)
3659         cc_default="${toolchain%-msan}"
3660         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3661         add_ldflags -fsanitize=memory
3662     ;;
3663     *-tsan)
3664         cc_default="${toolchain%-tsan}"
3665         add_cflags  -fsanitize=thread -fPIE
3666         add_ldflags -fsanitize=thread -pie
3667         case "$toolchain" in
3668             gcc-tsan)
3669                 add_cflags  -fPIC
3670                 add_ldflags -fPIC
3671                 ;;
3672         esac
3673     ;;
3674     *-usan)
3675         cc_default="${toolchain%-usan}"
3676         add_cflags  -fsanitize=undefined
3677         add_ldflags -fsanitize=undefined
3678     ;;
3679     valgrind-*)
3680         target_exec_default="valgrind"
3681         case "$toolchain" in
3682             valgrind-massif)
3683                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3684                 ;;
3685             valgrind-memcheck)
3686                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3687                 ;;
3688         esac
3689     ;;
3690     msvc)
3691         # Check whether the current MSVC version needs the C99 converter.
3692         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3693         # support enough of C99 to build ffmpeg. Default to the new
3694         # behaviour if the regexp was unable to match anything, since this
3695         # successfully parses the version number of existing supported
3696         # versions that require the converter (MSVC 2010 and 2012).
3697         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3698         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3699             cc_default="cl"
3700             cxx_default="cl"
3701         else
3702             cc_default="c99wrap cl"
3703             cxx_default="c99wrap cl"
3704         fi
3705         ld_default="$source_path/compat/windows/mslink"
3706         nm_default="dumpbin -symbols"
3707         ar_default="lib"
3708         case "$arch" in
3709         arm*)
3710             as_default="armasm"
3711             ;;
3712         esac
3713         target_os_default="win32"
3714         # Use a relative path for TMPDIR. This makes sure all the
3715         # ffconf temp files are written with a relative path, avoiding
3716         # issues with msys/win32 path conversion for MSVC parameters
3717         # such as -Fo<file> or -out:<file>.
3718         TMPDIR=.
3719     ;;
3720     icl)
3721         cc_default="icl"
3722         ld_default="xilink"
3723         nm_default="dumpbin -symbols"
3724         ar_default="xilib"
3725         target_os_default="win32"
3726         TMPDIR=.
3727     ;;
3728     gcov)
3729         add_cflags  -fprofile-arcs -ftest-coverage
3730         add_ldflags -fprofile-arcs -ftest-coverage
3731     ;;
3732     llvm-cov)
3733         add_cflags -fprofile-arcs -ftest-coverage
3734         add_ldflags --coverage
3735     ;;
3736     hardened)
3737         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3738         add_cflags   -fno-strict-overflow -fstack-protector-all
3739         add_ldflags  -Wl,-z,relro -Wl,-z,now
3740         add_cflags   -fPIE
3741         add_ldexeflags -fPIE -pie
3742     ;;
3743     ?*)
3744         die "Unknown toolchain $toolchain"
3745     ;;
3746 esac
3747
3748 test -n "$cross_prefix" && enable cross_compile
3749
3750 if enabled cross_compile; then
3751     test -n "$arch" && test -n "$target_os" ||
3752         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3753 fi
3754
3755 ar_default="${cross_prefix}${ar_default}"
3756 cc_default="${cross_prefix}${cc_default}"
3757 cxx_default="${cross_prefix}${cxx_default}"
3758 nm_default="${cross_prefix}${nm_default}"
3759 pkg_config_default="${cross_prefix}${pkg_config_default}"
3760 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3761     ranlib_default="${cross_prefix}${ranlib_default} -D"
3762 else
3763     ranlib_default="${cross_prefix}${ranlib_default}"
3764 fi
3765 strip_default="${cross_prefix}${strip_default}"
3766 windres_default="${cross_prefix}${windres_default}"
3767
3768 sysinclude_default="${sysroot}/usr/include"
3769
3770 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3771     target_exec target_os x86asmexe nvcc
3772 enabled cross_compile || host_cc_default=$cc
3773 set_default host_cc
3774
3775 pkg_config_fail_message=""
3776 if ! $pkg_config --version >/dev/null 2>&1; then
3777     warn "$pkg_config not found, library detection may fail."
3778     pkg_config=false
3779 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3780     pkg_config_fail_message="
3781 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3782 fi
3783
3784 if test $doxygen != $doxygen_default && \
3785   ! $doxygen --version >/dev/null 2>&1; then
3786     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3787 fi
3788
3789 exesuf() {
3790     case $1 in
3791         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3792     esac
3793 }
3794
3795 EXESUF=$(exesuf $target_os)
3796 HOSTEXESUF=$(exesuf $host_os)
3797
3798 # set temporary file name
3799 : ${TMPDIR:=$TEMPDIR}
3800 : ${TMPDIR:=$TMP}
3801 : ${TMPDIR:=/tmp}
3802
3803 if [ -n "$tempprefix" ] ; then
3804     mktemp(){
3805         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3806         echo "$tmpname"
3807         mkdir "$tmpname"
3808     }
3809 elif ! check_cmd mktemp -u XXXXXX; then
3810     # simple replacement for missing mktemp
3811     # NOT SAFE FOR GENERAL USE
3812     mktemp(){
3813         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3814         echo "$tmpname"
3815         mkdir "$tmpname"
3816     }
3817 fi
3818
3819 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3820     die "Unable to create temporary directory in $TMPDIR."
3821
3822 tmpfile(){
3823     tmp="${FFTMPDIR}/test"$2
3824     (set -C; exec > $tmp) 2> /dev/null ||
3825         die "Unable to create temporary file in $FFTMPDIR."
3826     eval $1=$tmp
3827 }
3828
3829 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3830 trap 'exit 2' INT
3831
3832 tmpfile TMPASM .asm
3833 tmpfile TMPC   .c
3834 tmpfile TMPCPP .cpp
3835 tmpfile TMPE   $EXESUF
3836 tmpfile TMPH   .h
3837 tmpfile TMPM   .m
3838 tmpfile TMPO   .o
3839 tmpfile TMPS   .S
3840 tmpfile TMPSH  .sh
3841 tmpfile TMPV   .ver
3842
3843 unset -f mktemp
3844
3845 chmod +x $TMPE
3846
3847 # make sure we can execute files in $TMPDIR
3848 cat > $TMPSH 2>> $logfile <<EOF
3849 #! /bin/sh
3850 EOF
3851 chmod +x $TMPSH >> $logfile 2>&1
3852 if ! $TMPSH >> $logfile 2>&1; then
3853     cat <<EOF
3854 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3855 variable to another directory and make sure that it is not mounted noexec.
3856 EOF
3857     die "Sanity test failed."
3858 fi
3859
3860 armasm_flags(){
3861     for flag; do
3862         case $flag in
3863             # Filter out MSVC cl.exe options from cflags that shouldn't
3864             # be passed to gas-preprocessor
3865             -M[TD]*)                                            ;;
3866             *)                  echo $flag                      ;;
3867         esac
3868    done
3869 }
3870
3871 ccc_flags(){
3872     for flag; do
3873         case $flag in
3874             -std=c99)           echo -c99                       ;;
3875             -mcpu=*)            echo -arch ${flag#*=}           ;;
3876             -mieee)             echo -ieee                      ;;
3877             -O*|-fast)          echo $flag                      ;;
3878             -fno-math-errno)    echo -assume nomath_errno       ;;
3879             -g)                 echo -g3                        ;;
3880             -Wall)              echo -msg_enable level2         ;;
3881             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3882             -Wl,*)              echo $flag                      ;;
3883             -f*|-W*)                                            ;;
3884             *)                  echo $flag                      ;;
3885         esac
3886    done
3887 }
3888
3889 cparser_flags(){
3890     for flag; do
3891         case $flag in
3892             -Wno-switch)             echo -Wno-switch-enum ;;
3893             -Wno-format-zero-length) ;;
3894             -Wdisabled-optimization) ;;
3895             -Wno-pointer-sign)       echo -Wno-other ;;
3896             *)                       echo $flag ;;
3897         esac
3898     done
3899 }
3900
3901 msvc_common_flags(){
3902     for flag; do
3903         case $flag in
3904             # In addition to specifying certain flags under the compiler
3905             # specific filters, they must be specified here as well or else the
3906             # generic catch all at the bottom will print the original flag.
3907             -Wall)                ;;
3908             -Wextra)              ;;
3909             -std=c99)             ;;
3910             # Common flags
3911             -fomit-frame-pointer) ;;
3912             -g)                   echo -Z7 ;;
3913             -fno-math-errno)      ;;
3914             -fno-common)          ;;
3915             -fno-signed-zeros)    ;;
3916             -fPIC)                ;;
3917             -mthumb)              ;;
3918             -march=*)             ;;
3919             -lz)                  echo zlib.lib ;;
3920             -lx264)               echo libx264.lib ;;
3921             -lstdc++)             ;;
3922             -l*)                  echo ${flag#-l}.lib ;;
3923             -LARGEADDRESSAWARE)   echo $flag ;;
3924             -L*)                  echo -libpath:${flag#-L} ;;
3925             *)                    echo $flag ;;
3926         esac
3927     done
3928 }
3929
3930 msvc_flags(){
3931     msvc_common_flags "$@"
3932     for flag; do
3933         case $flag in
3934             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3935                                        -wd4554 ;;
3936             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3937                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3938                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3939                                        -wd4307 \
3940                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3941         esac
3942     done
3943 }
3944
3945 icl_flags(){
3946     msvc_common_flags "$@"
3947     for flag; do
3948         case $flag in
3949             # Despite what Intel's documentation says -Wall, which is supported
3950             # on Windows, does enable remarks so disable them here.
3951             -Wall)                echo $flag -Qdiag-disable:remark ;;
3952             -std=c99)             echo -Qstd=c99 ;;
3953             -flto)                echo -ipo ;;
3954         esac
3955     done
3956 }
3957
3958 icc_flags(){
3959     for flag; do
3960         case $flag in
3961             -flto)                echo -ipo ;;
3962             *)                    echo $flag ;;
3963         esac
3964     done
3965 }
3966
3967 pgi_flags(){
3968     for flag; do
3969         case $flag in
3970             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3971             -fomit-frame-pointer) echo -Mnoframe ;;
3972             -g)                   echo -gopt ;;
3973             *)                    echo $flag ;;
3974         esac
3975     done
3976 }
3977
3978 suncc_flags(){
3979     for flag; do
3980         case $flag in
3981             -march=*|-mcpu=*)
3982                 case "${flag#*=}" in
3983                     native)                   echo -xtarget=native       ;;
3984                     v9|niagara)               echo -xarch=sparc          ;;
3985                     ultrasparc)               echo -xarch=sparcvis       ;;
3986                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3987                     i586|pentium)             echo -xchip=pentium        ;;
3988                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3989                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3990                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3991                     pentium4*)          echo -xtarget=pentium4           ;;
3992                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3993                     *-sse3)             echo -xarch=sse3                 ;;
3994                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3995                     bonnell)                   echo -xarch=ssse3         ;;
3996                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3997                     westmere)                  echo -xtarget=westmere    ;;
3998                     silvermont)                echo -xarch=sse4_2        ;;
3999                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4000                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4001                                                echo -xarch=avx           ;;
4002                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4003                     btver1)                    echo -xarch=amdsse4a      ;;
4004                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4005                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4006                     k8|opteron|athlon64|athlon-fx)
4007                                                echo -xarch=sse2a         ;;
4008                     athlon*)                   echo -xarch=pentium_proa  ;;
4009                 esac
4010                 ;;
4011             -std=c99)             echo -xc99              ;;
4012             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4013             -fPIC)                echo -KPIC -xcode=pic32 ;;
4014             -W*,*)                echo $flag              ;;
4015             -f*-*|-W*|-mimpure-text)                      ;;
4016             -shared)              echo -G                 ;;
4017             *)                    echo $flag              ;;
4018         esac
4019     done
4020 }
4021
4022 tms470_flags(){
4023     for flag; do
4024         case $flag in
4025             -march=*|-mcpu=*)
4026                 case "${flag#*=}" in
4027                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4028                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4029                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4030                     armv6*|arm11*)          echo -mv=6   ;;
4031                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4032                                             echo -mv=5e  ;;
4033                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4034                 esac
4035                 ;;
4036             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4037             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4038             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4039             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4040             -msoft-float)   echo --float_support=vfplib       ;;
4041             -O[0-3]|-mf=*)  echo $flag                        ;;
4042             -g)             echo -g -mn                       ;;
4043             -pds=*)         echo $flag                        ;;
4044             -D*|-I*)        echo $flag                        ;;
4045             --gcc|--abi=*)  echo $flag                        ;;
4046             -me)            echo $flag                        ;;
4047         esac
4048     done
4049 }
4050
4051 probe_cc(){
4052     pfx=$1
4053     _cc=$2
4054     first=$3
4055
4056     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4057     unset _ld_o _ldflags _ld_lib _ld_path
4058     unset _depflags _DEPCMD _DEPFLAGS
4059     _flags_filter=echo
4060
4061     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4062         true # no-op to avoid reading stdin in following checks
4063     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4064         _type=llvm_gcc
4065         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4066         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4067         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4068         _cflags_speed='-O3'
4069         _cflags_size='-Os'
4070     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4071         _type=gcc
4072         gcc_version=$($_cc --version | head -n1)
4073         gcc_basever=$($_cc -dumpversion)
4074         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4075         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4076         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4077         case $gcc_basever in
4078             2) ;;
4079             2.*) ;;
4080             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4081         esac
4082         if [ "$first" = true ]; then
4083             case $gcc_basever in
4084                 4.2*)
4085                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4086             esac
4087         fi
4088         _cflags_speed='-O3'
4089         _cflags_size='-Os'
4090     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4091         _type=icc
4092         _ident=$($_cc --version | head -n1)
4093         _depflags='-MMD'
4094         _cflags_speed='-O3'
4095         _cflags_size='-Os'
4096         _cflags_noopt='-O1'
4097         _flags_filter=icc_flags
4098     elif $_cc -v 2>&1 | grep -q xlc; then
4099         _type=xlc
4100         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4101         _cflags_speed='-O5'
4102         _cflags_size='-O5 -qcompact'
4103     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4104         _type=ccc
4105         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4106         _DEPFLAGS='-M'
4107         _cflags_speed='-fast'
4108         _cflags_size='-O1'
4109         _flags_filter=ccc_flags
4110     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4111         test -d "$sysroot" || die "No valid sysroot specified."
4112         _type=armcc
4113         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4114         armcc_conf="$PWD/armcc.conf"
4115         $_cc --arm_linux_configure                 \
4116              --arm_linux_config_file="$armcc_conf" \
4117              --configure_sysroot="$sysroot"        \
4118              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4119              die "Error creating armcc configuration file."
4120         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4121         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4122         as_default="${cross_prefix}gcc"
4123         _depflags='-MMD'
4124         _cflags_speed='-O3'
4125         _cflags_size='-Os'
4126     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4127         _type=tms470
4128         _ident=$($_cc -version | head -n1 | tr -s ' ')
4129         _flags='--gcc --abi=eabi -me'
4130         _cc_e='-ppl -fe=$@'
4131         _cc_o='-fe=$@'
4132         _depflags='-ppa -ppd=$(@:.o=.d)'
4133         _cflags_speed='-O3 -mf=5'
4134         _cflags_size='-O3 -mf=2'
4135         _flags_filter=tms470_flags
4136     elif $_cc -v 2>&1 | grep -q clang; then
4137         _type=clang
4138         _ident=$($_cc --version 2>/dev/null | head -n1)
4139         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4140         _cflags_speed='-O3'
4141         _cflags_size='-Oz'
4142     elif $_cc -V 2>&1 | grep -q Sun; then
4143         _type=suncc
4144         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4145         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4146         _DEPFLAGS='-xM1 -xc99'
4147         _ldflags='-std=c99'
4148         _cflags_speed='-O5'
4149         _cflags_size='-O5 -xspace'
4150         _flags_filter=suncc_flags
4151     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4152         _type=pathscale
4153         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4154         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4155         _cflags_speed='-O2'
4156         _cflags_size='-Os'
4157         _flags_filter='filter_out -Wdisabled-optimization'
4158     elif $_cc -v 2>&1 | grep -q Open64; then
4159         _type=open64
4160         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4161         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4162         _cflags_speed='-O2'
4163         _cflags_size='-Os'
4164         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4165     elif $_cc -V 2>&1 | grep -q Portland; then
4166         _type=pgi
4167         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4168         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4169         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4170         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4171         _cflags_noopt="-O"
4172         _flags_filter=pgi_flags
4173     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4174         _type=armasm
4175         _ident=$($_cc | head -n1)
4176         # 4509: "This form of conditional instruction is deprecated"
4177         _flags="-nologo -ignore 4509"
4178         _flags_filter=armasm_flags
4179     elif $_cc 2>&1 | grep -q Intel; then
4180         _type=icl
4181         _ident=$($_cc 2>&1 | head -n1)
4182         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4183         # Not only is O3 broken on 13.x+ but it is slower on all previous
4184         # versions (tested) as well.
4185         _cflags_speed="-O2"
4186         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4187         if $_cc 2>&1 | grep -q Linker; then
4188             _ld_o='-out:$@'
4189         else
4190             _ld_o='-Fe$@'
4191         fi
4192         _cc_o='-Fo$@'
4193         _cc_e='-P'
4194         _flags_filter=icl_flags
4195         _ld_lib='lib%.a'
4196         _ld_path='-libpath:'
4197         # -Qdiag-error to make icl error when seeing certain unknown arguments
4198         _flags='-nologo -Qdiag-error:4044,10157'
4199         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4200         # with MSVC which enables it by default.
4201         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4202         disable stripping
4203     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4204         # lld can emulate multiple different linkers; in ms link.exe mode,
4205         # the -? parameter gives the help output which contains an identifyable
4206         # string, while it gives an error in other modes.
4207         _type=lld-link
4208         # The link.exe mode doesn't have a switch for getting the version,
4209         # but we can force it back to gnu mode and get the version from there.
4210         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4211         _ld_o='-out:$@'
4212         _flags_filter=msvc_flags
4213         _ld_lib='lib%.a'
4214         _ld_path='-libpath:'
4215     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4216         _type=msvc
4217         _ident=$($_cc 2>&1 | head -n1)
4218         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4219         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4220         _cflags_speed="-O2"
4221         _cflags_size="-O1"
4222         _cflags_noopt="-O1"
4223         if $_cc -nologo- 2>&1 | grep -q Linker; then
4224             _ld_o='-out:$@'
4225         else
4226             _ld_o='-Fe$@'
4227         fi
4228         _cc_o='-Fo$@'
4229         _cc_e='-P -Fi$@'
4230         _flags_filter=msvc_flags
4231         _ld_lib='lib%.a'
4232         _ld_path='-libpath:'
4233         _flags='-nologo'
4234         disable stripping
4235     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4236         _type=cparser
4237         _ident=$($_cc --version | head -n1)
4238         _depflags='-MMD'
4239         _cflags_speed='-O4'
4240         _cflags_size='-O2'
4241         _flags_filter=cparser_flags
4242     fi
4243
4244     eval ${pfx}_type=\$_type
4245     eval ${pfx}_ident=\$_ident
4246 }
4247
4248 set_ccvars(){
4249     eval ${1}_C=\${_cc_c-\${${1}_C}}
4250     eval ${1}_E=\${_cc_e-\${${1}_E}}
4251     eval ${1}_O=\${_cc_o-\${${1}_O}}
4252
4253     if [ -n "$_depflags" ]; then
4254         eval ${1}_DEPFLAGS=\$_depflags
4255     else
4256         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4257         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4258         eval DEP${1}FLAGS=\$_flags
4259     fi
4260 }
4261
4262 probe_cc cc "$cc" "true"
4263 cflags_filter=$_flags_filter
4264 cflags_speed=$_cflags_speed
4265 cflags_size=$_cflags_size
4266 cflags_noopt=$_cflags_noopt
4267 add_cflags $_flags $_cflags
4268 cc_ldflags=$_ldflags
4269 set_ccvars CC
4270 set_ccvars CXX
4271
4272 probe_cc hostcc "$host_cc"
4273 host_cflags_filter=$_flags_filter
4274 host_cflags_speed=$_cflags_speed
4275 add_host_cflags  $_flags $_cflags
4276 set_ccvars HOSTCC
4277
4278 test -n "$cc_type" && enable $cc_type ||
4279     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4280
4281 : ${as_default:=$cc}
4282 : ${objcc_default:=$cc}
4283 : ${dep_cc_default:=$cc}
4284 : ${ld_default:=$cc}
4285 : ${host_ld_default:=$host_cc}
4286 set_default ar as objcc dep_cc ld ln_s host_ld windres
4287
4288 probe_cc as "$as"
4289 asflags_filter=$_flags_filter
4290 add_asflags $_flags $_cflags
4291 set_ccvars AS
4292
4293 probe_cc objcc "$objcc"
4294 objcflags_filter=$_flags_filter
4295 add_objcflags $_flags $_cflags
4296 set_ccvars OBJC
4297
4298 probe_cc ld "$ld"
4299 ldflags_filter=$_flags_filter
4300 add_ldflags $_flags $_ldflags
4301 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4302 LD_O=${_ld_o-$LD_O}
4303 LD_LIB=${_ld_lib-$LD_LIB}
4304 LD_PATH=${_ld_path-$LD_PATH}
4305
4306 probe_cc hostld "$host_ld"
4307 host_ldflags_filter=$_flags_filter
4308 add_host_ldflags $_flags $_ldflags
4309 HOSTLD_O=${_ld_o-$HOSTLD_O}
4310
4311 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4312     probe_cc depcc "$dep_cc"
4313     CCDEP=${_DEPCMD:-$DEPCMD}
4314     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4315     DEPCCFLAGS=$_flags
4316 fi
4317
4318 if $ar 2>&1 | grep -q Microsoft; then
4319     arflags="-nologo"
4320     ar_o='-out:$@'
4321 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4322     arflags="rq"
4323     ar_o='$@'
4324 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4325     arflags='-Xany -r -c'
4326     ar_o='$@'
4327 elif $ar 2>&1 | grep -q "\[D\] "; then
4328     arflags="rcD"
4329     ar_o='$@'
4330 else
4331     arflags="rc"
4332     ar_o='$@'
4333 fi
4334
4335 add_cflags $extra_cflags
4336 add_cxxflags $extra_cxxflags
4337 add_objcflags $extra_objcflags
4338 add_asflags $extra_cflags
4339
4340 if test -n "$sysroot"; then
4341     case "$cc_type" in
4342         gcc|llvm_gcc|clang)
4343             add_cppflags --sysroot="$sysroot"
4344             add_ldflags --sysroot="$sysroot"
4345 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4346             add_cppflags -isysroot "$sysroot"
4347             add_ldflags -isysroot "$sysroot"
4348         ;;
4349         tms470)
4350             add_cppflags -I"$sysinclude"
4351             add_ldflags  --sysroot="$sysroot"
4352         ;;
4353     esac
4354 fi
4355
4356 if test "$cpu" = host; then
4357     enabled cross_compile &&
4358         die "--cpu=host makes no sense when cross-compiling."
4359
4360     case "$cc_type" in
4361         gcc|llvm_gcc)
4362             check_native(){
4363                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4364                 sed -n "/cc1.*$1=/{
4365                             s/.*$1=\\([^ ]*\\).*/\\1/
4366                             p
4367                             q
4368                         }" $TMPE
4369             }
4370             cpu=$(check_native -march || check_native -mcpu)
4371         ;;
4372         clang)
4373             check_native(){
4374                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4375                 sed -n "/cc1.*-target-cpu /{
4376                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4377                             p
4378                             q
4379                         }" $TMPE
4380             }
4381             cpu=$(check_native -march)
4382         ;;
4383     esac
4384
4385     test "${cpu:-host}" = host &&
4386         die "--cpu=host not supported with compiler $cc"
4387 fi
4388
4389 # Deal with common $arch aliases
4390 case "$arch" in
4391     aarch64|arm64)
4392         arch="aarch64"
4393     ;;
4394     arm*|iPad*|iPhone*)
4395         arch="arm"
4396     ;;
4397     mips*|IP*)
4398         case "$arch" in
4399         *el)
4400             add_cppflags -EL
4401             add_ldflags -EL
4402         ;;
4403         *eb)
4404             add_cppflags -EB
4405             add_ldflags -EB
4406         ;;
4407         esac
4408         arch="mips"
4409     ;;
4410     parisc*|hppa*)
4411         arch="parisc"
4412     ;;
4413     "Power Macintosh"|ppc*|powerpc*)
4414         arch="ppc"
4415     ;;
4416     s390|s390x)
4417         arch="s390"
4418     ;;
4419     sh4|sh)
4420         arch="sh4"
4421     ;;
4422     sun4*|sparc*)
4423         arch="sparc"
4424     ;;
4425     tilegx|tile-gx)
4426         arch="tilegx"
4427     ;;
4428     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4429         arch="x86"
4430     ;;
4431 esac
4432
4433 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4434 enable $arch
4435
4436 # Add processor-specific flags
4437 if enabled aarch64; then
4438
4439     case $cpu in
4440         armv*)
4441             cpuflags="-march=$cpu"
4442         ;;
4443         *)
4444             cpuflags="-mcpu=$cpu"
4445         ;;
4446     esac
4447
4448 elif enabled alpha; then
4449
4450     cpuflags="-mcpu=$cpu"
4451
4452 elif enabled arm; then
4453
4454     check_arm_arch() {
4455         check_cpp_condition stddef.h \
4456             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4457             $cpuflags
4458     }
4459
4460     probe_arm_arch() {
4461         if   check_arm_arch 4;        then echo armv4
4462         elif check_arm_arch 4T;       then echo armv4t
4463         elif check_arm_arch 5;        then echo armv5
4464         elif check_arm_arch 5E;       then echo armv5e
4465         elif check_arm_arch 5T;       then echo armv5t
4466         elif check_arm_arch 5TE;      then echo armv5te
4467         elif check_arm_arch 5TEJ;     then echo armv5te
4468         elif check_arm_arch 6;        then echo armv6
4469         elif check_arm_arch 6J;       then echo armv6j
4470         elif check_arm_arch 6K;       then echo armv6k
4471         elif check_arm_arch 6Z;       then echo armv6z
4472         elif check_arm_arch 6ZK;      then echo armv6zk
4473         elif check_arm_arch 6T2;      then echo armv6t2
4474         elif check_arm_arch 7;        then echo armv7
4475         elif check_arm_arch 7A  7_A;  then echo armv7-a
4476         elif check_arm_arch 7S;       then echo armv7-a
4477         elif check_arm_arch 7R  7_R;  then echo armv7-r
4478         elif check_arm_arch 7M  7_M;  then echo armv7-m
4479         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4480         elif check_arm_arch 8A  8_A;  then echo armv8-a
4481         fi
4482     }
4483
4484     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4485
4486     case $cpu in
4487         armv*)
4488             cpuflags="-march=$cpu"
4489             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4490         ;;
4491         *)
4492             cpuflags="-mcpu=$cpu"
4493             case $cpu in
4494                 cortex-a*)                               subarch=armv7a  ;;
4495                 cortex-r*)                               subarch=armv7r  ;;
4496                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4497                 arm11*)                                  subarch=armv6   ;;
4498                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4499                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4500                 *)                             subarch=$(probe_arm_arch) ;;
4501             esac
4502         ;;
4503     esac
4504
4505     case "$subarch" in
4506         armv5t*)    enable fast_clz                ;;
4507         armv[6-8]*)
4508             enable fast_clz
4509             disabled fast_unaligned || enable fast_unaligned
4510             ;;
4511     esac
4512
4513 elif enabled avr32; then
4514
4515     case $cpu in
4516         ap7[02]0[0-2])
4517             subarch="avr32_ap"
4518             cpuflags="-mpart=$cpu"
4519         ;;
4520         ap)
4521             subarch="avr32_ap"
4522             cpuflags="-march=$cpu"
4523         ;;
4524         uc3[ab]*)
4525             subarch="avr32_uc"
4526             cpuflags="-mcpu=$cpu"
4527         ;;
4528         uc)
4529             subarch="avr32_uc"
4530             cpuflags="-march=$cpu"
4531         ;;
4532     esac
4533
4534 elif enabled bfin; then
4535
4536     cpuflags="-mcpu=$cpu"
4537
4538 elif enabled mips; then
4539
4540     cpuflags="-march=$cpu"
4541
4542     if [ "$cpu" != "generic" ]; then
4543         disable mips32r2
4544         disable mips32r5
4545         disable mips64r2
4546         disable mips32r6
4547         disable mips64r6
4548         disable loongson2
4549         disable loongson3
4550
4551         case $cpu in
4552             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4553                 enable mips32r2
4554                 disable msa
4555             ;;
4556             p5600|i6400|p6600)
4557                 disable mipsdsp
4558                 disable mipsdspr2
4559             ;;
4560             loongson*)
4561                 enable loongson2
4562                 enable loongson3
4563                 enable local_aligned_8 local_aligned_16 local_aligned_32
4564                 enable simd_align_16
4565                 enable fast_64bit
4566                 enable fast_clz
4567                 enable fast_cmov
4568                 enable fast_unaligned
4569                 disable aligned_stack
4570                 disable mipsfpu
4571                 disable mipsdsp
4572                 disable mipsdspr2
4573                 case $cpu in
4574                     loongson3*)
4575                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4576                     ;;
4577                     loongson2e)
4578                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4579                     ;;
4580                     loongson2f)
4581                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4582                     ;;
4583                 esac
4584             ;;
4585             *)
4586                 # Unknown CPU. Disable everything.
4587                 warn "unknown CPU. Disabling all MIPS optimizations."
4588                 disable mipsfpu
4589                 disable mipsdsp
4590                 disable mipsdspr2
4591                 disable msa
4592                 disable mmi
4593             ;;
4594         esac
4595
4596         case $cpu in
4597             24kc)
4598                 disable mipsfpu
4599                 disable mipsdsp
4600                 disable mipsdspr2
4601             ;;
4602             24kf*)
4603                 disable mipsdsp
4604                 disable mipsdspr2
4605             ;;
4606             24kec|34kc|1004kc)
4607                 disable mipsfpu
4608                 disable mipsdspr2
4609             ;;
4610             24kef*|34kf*|1004kf*)
4611                 disable mipsdspr2
4612             ;;
4613             74kc)
4614                 disable mipsfpu
4615             ;;
4616             p5600)
4617                 enable mips32r5
4618                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4619             ;;
4620             i6400)
4621                 enable mips64r6
4622                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4623             ;;
4624             p6600)
4625                 enable mips64r6
4626                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4627             ;;
4628         esac
4629     else
4630         # We do not disable anything. Is up to the user to disable the unwanted features.
4631         warn 'generic cpu selected'
4632     fi
4633
4634 elif enabled ppc; then
4635
4636     disable ldbrx
4637
4638     case $(tolower $cpu) in
4639         601|ppc601|powerpc601)
4640             cpuflags="-mcpu=601"
4641             disable altivec
4642         ;;
4643         603*|ppc603*|powerpc603*)
4644             cpuflags="-mcpu=603"
4645             disable altivec
4646         ;;
4647         604*|ppc604*|powerpc604*)
4648             cpuflags="-mcpu=604"
4649             disable altivec
4650         ;;
4651         g3|75*|ppc75*|powerpc75*)
4652             cpuflags="-mcpu=750"
4653             disable altivec
4654         ;;
4655         g4|745*|ppc745*|powerpc745*)
4656             cpuflags="-mcpu=7450"
4657             disable vsx
4658         ;;
4659         74*|ppc74*|powerpc74*)
4660             cpuflags="-mcpu=7400"
4661             disable vsx
4662         ;;
4663         g5|970|ppc970|powerpc970)
4664             cpuflags="-mcpu=970"
4665             disable vsx
4666         ;;
4667         power[3-6]*)
4668             cpuflags="-mcpu=$cpu"
4669             disable vsx
4670         ;;
4671         power[7-8]*)
4672             cpuflags="-mcpu=$cpu"
4673         ;;
4674         cell)
4675             cpuflags="-mcpu=cell"
4676             enable ldbrx
4677             disable vsx
4678         ;;
4679         e500mc)
4680             cpuflags="-mcpu=e500mc"
4681             disable altivec
4682         ;;
4683         e500v2)
4684             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4685             disable altivec
4686             disable dcbzl
4687         ;;
4688         e500)
4689             cpuflags="-mcpu=8540 -mhard-float"
4690             disable altivec
4691             disable dcbzl
4692         ;;
4693     esac
4694
4695 elif enabled sparc; then
4696
4697     case $cpu in
4698         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4699             cpuflags="-mcpu=$cpu"
4700         ;;
4701         ultrasparc*|niagara[234])
4702             cpuflags="-mcpu=$cpu"
4703         ;;
4704     esac
4705
4706 elif enabled x86; then
4707
4708     case $cpu in
4709         i[345]86|pentium)
4710             cpuflags="-march=$cpu"
4711             disable i686
4712             disable mmx
4713         ;;
4714         # targets that do NOT support nopl and conditional mov (cmov)
4715         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4716             cpuflags="-march=$cpu"
4717             disable i686
4718         ;;
4719         # targets that do support nopl and conditional mov (cmov)
4720         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4721         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4722         |amdfam10|barcelona|b[dt]ver*|znver*)
4723             cpuflags="-march=$cpu"
4724             enable i686
4725             enable fast_cmov
4726         ;;
4727         # targets that do support conditional mov but on which it's slow
4728         pentium4|pentium4m|prescott|nocona)
4729             cpuflags="-march=$cpu"
4730             enable i686
4731             disable fast_cmov
4732         ;;
4733     esac
4734
4735 fi
4736
4737 if [ "$cpu" != generic ]; then
4738     add_cflags  $cpuflags
4739     add_asflags $cpuflags
4740     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4741 fi
4742
4743 # compiler sanity check
4744 check_exec <<EOF
4745 int main(void){ return 0; }
4746 EOF
4747 if test "$?" != 0; then
4748     echo "$cc is unable to create an executable file."
4749     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4750         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4751         echo "Only do this if you know what cross compiling means."
4752     fi
4753     die "C compiler test failed."
4754 fi
4755
4756 add_cppflags -D_ISOC99_SOURCE
4757 add_cxxflags -D__STDC_CONSTANT_MACROS
4758 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4759
4760 # some compilers silently accept -std=c11, so we also need to check that the
4761 # version macro is defined properly
4762 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4763     add_cflags -std=c11
4764 else
4765     check_cflags -std=c99
4766 fi
4767
4768 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4769 #include <stdlib.h>
4770 EOF
4771 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4772 #include <stdlib.h>
4773 EOF
4774
4775 add_host_cppflags -D_ISOC99_SOURCE
4776 check_host_cflags -std=c99
4777 check_host_cflags -Wall
4778 check_host_cflags $host_cflags_speed
4779
4780 check_64bit(){
4781     arch32=$1
4782     arch64=$2
4783     expr=$3
4784     check_code cc "" "int test[2*($expr) - 1]" &&
4785         subarch=$arch64 || subarch=$arch32
4786 }
4787
4788 case "$arch" in
4789     aarch64|alpha|ia64)
4790         spic=$shared
4791     ;;
4792     mips)
4793         check_64bit mips mips64 '_MIPS_SIM > 1'
4794         spic=$shared
4795     ;;
4796     parisc)
4797         check_64bit parisc parisc64 'sizeof(void *) > 4'
4798         spic=$shared
4799     ;;
4800     ppc)
4801         check_64bit ppc ppc64 'sizeof(void *) > 4'
4802         spic=$shared
4803     ;;
4804     s390)
4805         check_64bit s390 s390x 'sizeof(void *) > 4'
4806         spic=$shared
4807     ;;
4808     sparc)
4809         check_64bit sparc sparc64 'sizeof(void *) > 4'
4810         spic=$shared
4811     ;;
4812     x86)
4813         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4814         # Treat x32 as x64 for now. Note it also needs spic=$shared
4815         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4816             subarch=x86_64
4817         if test "$subarch" = "x86_64"; then
4818             spic=$shared
4819         fi
4820     ;;
4821     ppc)
4822         check_cc <<EOF && subarch="ppc64"
4823         int test[(int)sizeof(char*) - 7];
4824 EOF
4825     ;;
4826 esac
4827
4828 enable $subarch
4829 enabled spic && enable_weak pic
4830
4831 enabled x86_64 && objformat=elf64 || objformat="elf32"
4832
4833 # OS specific
4834 case $target_os in
4835     aix)
4836         SHFLAGS=-shared
4837         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4838         enabled shared && add_ldflags -Wl,-brtl
4839         ;;
4840     android)
4841         disable symver
4842         enable section_data_rel_ro
4843         SLIB_INSTALL_NAME='$(SLIBNAME)'
4844         SLIB_INSTALL_LINKS=
4845         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4846         ;;
4847     haiku)
4848         prefix_default="/boot/common"
4849         network_extralibs="-lnetwork"
4850         host_extralibs=
4851         ;;
4852     sunos)
4853         SHFLAGS='-shared -Wl,-h,$$(@F)'
4854         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4855         network_extralibs="-lsocket -lnsl"
4856         add_cppflags -D__EXTENSIONS__
4857         # When using suncc to build, the Solaris linker will mark
4858         # an executable with each instruction set encountered by
4859         # the Solaris assembler.  As our libraries contain their own
4860         # guards for processor-specific code, instead suppress
4861         # generation of the HWCAPS ELF section on Solaris x86 only.
4862         enabled_all suncc x86 &&
4863             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4864             add_ldflags -Wl,-M,mapfile
4865         nm_default='nm -P -g'
4866         version_script='-M'
4867         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4868         ;;
4869     netbsd)
4870         disable symver
4871         oss_indev_extralibs="-lossaudio"
4872         oss_outdev_extralibs="-lossaudio"
4873         enabled gcc || check_ldflags -Wl,-zmuldefs
4874         ;;
4875     openbsd|bitrig)
4876         disable symver
4877         SHFLAGS='-shared'
4878         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4879         SLIB_INSTALL_LINKS=
4880         oss_indev_extralibs="-lossaudio"
4881         oss_outdev_extralibs="-lossaudio"
4882         ;;
4883     dragonfly)
4884         disable symver
4885         ;;
4886     freebsd)
4887         ;;
4888     bsd/os)
4889         add_extralibs -lpoll -lgnugetopt
4890         strip="strip -d"
4891         ;;
4892     darwin)
4893         enabled ppc && add_asflags -force_cpusubtype_ALL
4894         install_name