build: cleanup videotoolbox
[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   --disable-avfoundation   disable Apple AVFoundation framework [autodetect]
206   --enable-avisynth        enable reading of AviSynth script files [no]
207   --disable-bzlib          disable bzlib [autodetect]
208   --disable-coreimage      disable Apple CoreImage framework [autodetect]
209   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
210   --enable-frei0r          enable frei0r video filtering [no]
211   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
212                            if openssl, librtmp or gmp is not used [no]
213   --enable-gmp             enable gmp, needed for rtmp(t)e support
214                            if openssl or librtmp is not used [no]
215   --enable-gnutls          enable gnutls, needed for https support
216                            if openssl is not used [no]
217   --disable-iconv          disable iconv [autodetect]
218   --disable-jack           disable libjack support [autodetect]
219   --enable-jni             enable JNI support [no]
220   --enable-ladspa          enable LADSPA audio filtering [no]
221   --enable-libass          enable libass subtitles rendering,
222                            needed for subtitles and ass filter [no]
223   --enable-libbluray       enable BluRay reading using libbluray [no]
224   --enable-libbs2b         enable bs2b DSP library [no]
225   --enable-libcaca         enable textual display using libcaca [no]
226   --enable-libcelt         enable CELT decoding via libcelt [no]
227   --enable-libcdio         enable audio CD grabbing with libcdio [no]
228   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
229                            and libraw1394 [no]
230   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
231   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
232   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
233   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
234   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
235   --enable-libgme          enable Game Music Emu via libgme [no]
236   --enable-libgsm          enable GSM de/encoding via libgsm [no]
237   --enable-libiec61883     enable iec61883 via libiec61883 [no]
238   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
239   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
240   --enable-libmodplug      enable ModPlug via libmodplug [no]
241   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
242   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
243   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
244   --enable-libopencv       enable video filtering via libopencv [no]
245   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
246   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
247   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
248   --enable-libopus         enable Opus de/encoding via libopus [no]
249   --enable-libpulse        enable Pulseaudio input via libpulse [no]
250   --enable-librsvg         enable SVG rasterization via librsvg [no]
251   --enable-librubberband   enable rubberband needed for rubberband filter [no]
252   --enable-librtmp         enable RTMP[E] support via librtmp [no]
253   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
254   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
255   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
256   --enable-libsoxr         enable Include libsoxr resampling [no]
257   --enable-libspeex        enable Speex de/encoding via libspeex [no]
258   --enable-libssh          enable SFTP protocol via libssh [no]
259   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
260   --enable-libtheora       enable Theora encoding via libtheora [no]
261   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
262   --enable-libv4l2         enable libv4l2/v4l-utils [no]
263   --enable-libvidstab      enable video stabilization using vid.stab [no]
264   --enable-libvmaf         enable vmaf filter via libvmaf [no]
265   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
266   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
267                            native implementation exists [no]
268   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
269   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
270   --enable-libwebp         enable WebP encoding via libwebp [no]
271   --enable-libx264         enable H.264 encoding via x264 [no]
272   --enable-libx265         enable HEVC encoding via x265 [no]
273   --enable-libxavs         enable AVS encoding via xavs [no]
274   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
275   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
276   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
277   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
278   --enable-libxvid         enable Xvid encoding via xvidcore,
279                            native MPEG-4/Xvid encoder exists [no]
280   --enable-libzimg         enable z.lib, needed for zscale filter [no]
281   --enable-libzmq          enable message passing via libzmq [no]
282   --enable-libzvbi         enable teletext support via libzvbi [no]
283   --disable-lzma           disable lzma [autodetect]
284   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
285   --enable-libndi_newtek   enable Newteck NDI I/O support [no]
286   --enable-mediacodec      enable Android MediaCodec support [no]
287   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
288   --enable-openal          enable OpenAL 1.1 capture support [no]
289   --enable-opencl          enable OpenCL code
290   --enable-opengl          enable OpenGL rendering [no]
291   --enable-openssl         enable openssl, needed for https support
292                            if gnutls is not used [no]
293   --disable-sndio          disable sndio support [autodetect]
294   --disable-schannel       disable SChannel SSP, needed for TLS support on
295                            Windows if openssl and gnutls are not used [autodetect]
296   --disable-sdl2           disable sdl2 [autodetect]
297   --disable-securetransport disable Secure Transport, needed for TLS support
298                            on OSX if openssl and gnutls are not used [autodetect]
299   --disable-xlib           disable xlib [autodetect]
300   --disable-zlib           disable zlib [autodetect]
301
302   The following libraries provide various hardware acceleration features:
303   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
304   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
305   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
306   --disable-cuvid          disable Nvidia CUVID support [autodetect]
307   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
308   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
309   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
310   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
311   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
312   --disable-nvenc          disable Nvidia video encoding code [autodetect]
313   --enable-omx             enable OpenMAX IL code [no]
314   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
315   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
316   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
317   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
318   --disable-videotoolbox   disable VideoToolbox code [autodetect]
319
320 Toolchain options:
321   --arch=ARCH              select architecture [$arch]
322   --cpu=CPU                select the minimum required CPU (affects
323                            instruction selection, may crash on older CPUs)
324   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
325   --progs-suffix=SUFFIX    program name suffix []
326   --enable-cross-compile   assume a cross-compiler is used
327   --sysroot=PATH           root of cross-build tree
328   --sysinclude=PATH        location of cross-build system headers
329   --target-os=OS           compiler targets OS [$target_os]
330   --target-exec=CMD        command to run executables on target
331   --target-path=DIR        path to view of build directory on target
332   --target-samples=DIR     path to samples directory on target
333   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
334   --toolchain=NAME         set tool defaults according to NAME
335   --nm=NM                  use nm tool NM [$nm_default]
336   --ar=AR                  use archive tool AR [$ar_default]
337   --as=AS                  use assembler AS [$as_default]
338   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
339   --strip=STRIP            use strip tool STRIP [$strip_default]
340   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
341   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
342   --cc=CC                  use C compiler CC [$cc_default]
343   --cxx=CXX                use C compiler CXX [$cxx_default]
344   --objcc=OCC              use ObjC compiler OCC [$cc_default]
345   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
346   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
347   --ld=LD                  use linker LD [$ld_default]
348   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
349   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
350   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
351   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
352   --host-cc=HOSTCC         use host C compiler HOSTCC
353   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
354   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
355   --host-ld=HOSTLD         use host linker HOSTLD
356   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
357   --host-libs=HLIBS        use libs HLIBS when linking for host
358   --host-os=OS             compiler host OS [$target_os]
359   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
360   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
361   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
362   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
363   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
364   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
365   --extra-libs=ELIBS       add ELIBS [$ELIBS]
366   --extra-version=STRING   version string suffix []
367   --optflags=OPTFLAGS      override optimization-related compiler flags
368   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
369   --build-suffix=SUFFIX    library name suffix []
370   --enable-pic             build position-independent code
371   --enable-thumb           compile for Thumb instruction set
372   --enable-lto             use link-time optimization
373   --env="ENV=override"     override the environment variables
374
375 Advanced options (experts only):
376   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
377   --custom-allocator=NAME  use a supported custom allocator
378   --disable-symver         disable symbol versioning
379   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
380   --disable-safe-bitstream-reader
381                            disable buffer boundary checking in bitreaders
382                            (faster, but may crash)
383   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
384
385 Optimization options (experts only):
386   --disable-asm            disable all assembly optimizations
387   --disable-altivec        disable AltiVec optimizations
388   --disable-vsx            disable VSX optimizations
389   --disable-power8         disable POWER8 optimizations
390   --disable-amd3dnow       disable 3DNow! optimizations
391   --disable-amd3dnowext    disable 3DNow! extended optimizations
392   --disable-mmx            disable MMX optimizations
393   --disable-mmxext         disable MMXEXT optimizations
394   --disable-sse            disable SSE optimizations
395   --disable-sse2           disable SSE2 optimizations
396   --disable-sse3           disable SSE3 optimizations
397   --disable-ssse3          disable SSSE3 optimizations
398   --disable-sse4           disable SSE4 optimizations
399   --disable-sse42          disable SSE4.2 optimizations
400   --disable-avx            disable AVX optimizations
401   --disable-xop            disable XOP optimizations
402   --disable-fma3           disable FMA3 optimizations
403   --disable-fma4           disable FMA4 optimizations
404   --disable-avx2           disable AVX2 optimizations
405   --disable-aesni          disable AESNI optimizations
406   --disable-armv5te        disable armv5te optimizations
407   --disable-armv6          disable armv6 optimizations
408   --disable-armv6t2        disable armv6t2 optimizations
409   --disable-vfp            disable VFP optimizations
410   --disable-neon           disable NEON optimizations
411   --disable-inline-asm     disable use of inline assembly
412   --disable-x86asm         disable use of standalone x86 assembly
413   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
414   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
415   --disable-msa            disable MSA optimizations
416   --disable-mipsfpu        disable floating point MIPS optimizations
417   --disable-mmi            disable Loongson SIMD optimizations
418   --disable-fast-unaligned consider unaligned accesses slow
419
420 Developer options (useful when working on FFmpeg itself):
421   --disable-debug          disable debugging symbols
422   --enable-debug=LEVEL     set the debug level [$debuglevel]
423   --disable-optimizations  disable compiler optimizations
424   --enable-extra-warnings  enable more compiler warnings
425   --disable-stripping      disable stripping of executables and shared libraries
426   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
427                            2 causes a slowdown at runtime.
428   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
429   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
430                            leaks and errors, using the specified valgrind binary.
431                            Cannot be combined with --target-exec
432   --enable-ftrapv          Trap arithmetic overflows
433   --samples=PATH           location of test samples for FATE, if not set use
434                            \$FATE_SAMPLES at make invocation time.
435   --enable-neon-clobber-test check NEON registers for clobbering (should be
436                            used only for debugging purposes)
437   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
438                            should be used only for debugging purposes)
439   --enable-random          randomly enable/disable components
440   --disable-random
441   --enable-random=LIST     randomly enable/disable specific components or
442   --disable-random=LIST    component groups. LIST is a comma-separated list
443                            of NAME[:PROB] entries where NAME is a component
444                            (group) and PROB the probability associated with
445                            NAME (default 0.5).
446   --random-seed=VALUE      seed value for --enable/disable-random
447   --disable-valgrind-backtrace do not print a backtrace under Valgrind
448                            (only applies to --disable-optimizations builds)
449   --enable-osfuzz          Enable building fuzzer tool
450   --libfuzzer=PATH         path to libfuzzer
451   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
452                            in the name) of tests whose result is ignored
453   --enable-linux-perf      enable Linux Performance Monitor API
454
455 NOTE: Object files are built at the place where configure is launched.
456 EOF
457   exit 0
458 }
459
460 quotes='""'
461 if test -t 1 && which tput >/dev/null 2>&1; then
462     ncolors=$(tput colors)
463     if test -n "$ncolors" && test $ncolors -ge 8; then
464         bold_color=$(tput bold)
465         warn_color=$(tput setaf 3)
466         error_color=$(tput setaf 1)
467         reset_color=$(tput sgr0)
468     fi
469     # 72 used instead of 80 since that's the default of pr
470     ncols=$(tput cols)
471 fi
472 : ${ncols:=72}
473
474 log(){
475     echo "$@" >> $logfile
476 }
477
478 log_file(){
479     log BEGIN $1
480     pr -n -t $1 >> $logfile
481     log END $1
482 }
483
484 warn(){
485     log "WARNING: $*"
486     WARNINGS="${WARNINGS}WARNING: $*\n"
487 }
488
489 die(){
490     log "$@"
491     echo "$error_color$bold_color$@$reset_color"
492     cat <<EOF
493
494 If you think configure made a mistake, make sure you are using the latest
495 version from Git.  If the latest version fails, report the problem to the
496 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
497 EOF
498     if disabled logging; then
499         cat <<EOF
500 Rerun configure with logging enabled (do not use --disable-logging), and
501 include the log this produces with your report.
502 EOF
503     else
504         cat <<EOF
505 Include the log file "$logfile" produced by configure as this will help
506 solve the problem.
507 EOF
508     fi
509     exit 1
510 }
511
512 # Avoid locale weirdness, besides we really just want to translate ASCII.
513 toupper(){
514     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
515 }
516
517 tolower(){
518     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
519 }
520
521 c_escape(){
522     echo "$*" | sed 's/["\\]/\\\0/g'
523 }
524
525 sh_quote(){
526     v=$(echo "$1" | sed "s/'/'\\\\''/g")
527     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
528     echo "$v"
529 }
530
531 cleanws(){
532     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
533 }
534
535 filter(){
536     pat=$1
537     shift
538     for v; do
539         eval "case $v in $pat) printf '%s ' $v ;; esac"
540     done
541 }
542
543 filter_out(){
544     pat=$1
545     shift
546     for v; do
547         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
548     done
549 }
550
551 map(){
552     m=$1
553     shift
554     for v; do eval $m; done
555 }
556
557 add_suffix(){
558     suffix=$1
559     shift
560     for v; do echo ${v}${suffix}; done
561 }
562
563 set_all(){
564     value=$1
565     shift
566     for var in $*; do
567         eval $var=$value
568     done
569 }
570
571 set_weak(){
572     value=$1
573     shift
574     for var; do
575         eval : \${$var:=$value}
576     done
577 }
578
579 sanitize_var_name(){
580     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
581 }
582
583 set_safe(){
584     var=$1
585     shift
586     eval $(sanitize_var_name "$var")='$*'
587 }
588
589 get_safe(){
590     eval echo \$$(sanitize_var_name "$1")
591 }
592
593 pushvar(){
594     for pvar in $*; do
595         eval level=\${${pvar}_level:=0}
596         eval ${pvar}_${level}="\$$pvar"
597         eval ${pvar}_level=$(($level+1))
598     done
599 }
600
601 popvar(){
602     for pvar in $*; do
603         eval level=\${${pvar}_level:-0}
604         test $level = 0 && continue
605         eval level=$(($level-1))
606         eval $pvar="\${${pvar}_${level}}"
607         eval ${pvar}_level=$level
608         eval unset ${pvar}_${level}
609     done
610 }
611
612 request(){
613     for var in $*; do
614         eval ${var}_requested=yes
615         eval $var=
616     done
617 }
618
619 enable(){
620     set_all yes $*
621 }
622
623 disable(){
624     set_all no $*
625 }
626
627 enable_weak(){
628     set_weak yes $*
629 }
630
631 disable_weak(){
632     set_weak no $*
633 }
634
635 enable_safe(){
636     for var; do
637         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
638     done
639 }
640
641 disable_safe(){
642     for var; do
643         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
644     done
645 }
646
647 do_enable_deep(){
648     for var; do
649         enabled $var && continue
650         eval sel="\$${var}_select"
651         eval sgs="\$${var}_suggest"
652         pushvar var sgs
653         enable_deep $sel
654         popvar sgs
655         enable_deep_weak $sgs
656         popvar var
657     done
658 }
659
660 enable_deep(){
661     do_enable_deep $*
662     enable $*
663 }
664
665 enable_deep_weak(){
666     for var; do
667         disabled $var && continue
668         pushvar var
669         do_enable_deep $var
670         popvar var
671         enable_weak $var
672     done
673 }
674
675 requested(){
676     test "${1#!}" = "$1" && op='=' || op=!=
677     eval test "x\$${1#!}_requested" $op "xyes"
678 }
679
680 enabled(){
681     test "${1#!}" = "$1" && op='=' || op=!=
682     eval test "x\$${1#!}" $op "xyes"
683 }
684
685 disabled(){
686     test "${1#!}" = "$1" && op='=' || op=!=
687     eval test "x\$${1#!}" $op "xno"
688 }
689
690 enabled_all(){
691     for opt; do
692         enabled $opt || return 1
693     done
694 }
695
696 disabled_all(){
697     for opt; do
698         disabled $opt || return 1
699     done
700 }
701
702 enabled_any(){
703     for opt; do
704         enabled $opt && return 0
705     done
706 }
707
708 disabled_any(){
709     for opt; do
710         disabled $opt && return 0
711     done
712     return 1
713 }
714
715 set_default(){
716     for opt; do
717         eval : \${$opt:=\$${opt}_default}
718     done
719 }
720
721 is_in(){
722     value=$1
723     shift
724     for var in $*; do
725         [ $var = $value ] && return 0
726     done
727     return 1
728 }
729
730 do_check_deps(){
731     for cfg; do
732         cfg="${cfg#!}"
733         enabled ${cfg}_checking && die "Circular dependency for $cfg."
734         disabled ${cfg}_checking && continue
735         enable ${cfg}_checking
736         append allopts $cfg
737
738         eval dep_all="\$${cfg}_deps"
739         eval dep_any="\$${cfg}_deps_any"
740         eval dep_sel="\$${cfg}_select"
741         eval dep_sgs="\$${cfg}_suggest"
742         eval dep_ifa="\$${cfg}_if"
743         eval dep_ifn="\$${cfg}_if_any"
744
745         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
746         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
747         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
748
749         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
750         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
751         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
752         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
753         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
754
755         if enabled $cfg; then
756             enable_deep $dep_sel
757             enable_deep_weak $dep_sgs
758         fi
759
760         disable ${cfg}_checking
761     done
762 }
763
764 check_deps(){
765     unset allopts
766
767     do_check_deps "$@"
768
769     for cfg in $allopts; do
770         enabled $cfg || continue
771         eval dep_extralibs="\$${cfg}_extralibs"
772         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
773     done
774 }
775
776 print_config(){
777     pfx=$1
778     files=$2
779     shift 2
780     map 'eval echo "$v \${$v:-no}"' "$@" |
781     awk "BEGIN { split(\"$files\", files) }
782         {
783             c = \"$pfx\" toupper(\$1);
784             v = \$2;
785             sub(/yes/, 1, v);
786             sub(/no/,  0, v);
787             for (f in files) {
788                 file = files[f];
789                 if (file ~ /\\.h\$/) {
790                     printf(\"#define %s %d\\n\", c, v) >>file;
791                 } else if (file ~ /\\.asm\$/) {
792                     printf(\"%%define %s %d\\n\", c, v) >>file;
793                 } else if (file ~ /\\.mak\$/) {
794                     n = -v ? \"\" : \"!\";
795                     printf(\"%s%s=yes\\n\", n, c) >>file;
796                 } else if (file ~ /\\.texi\$/) {
797                     pre = -v ? \"\" : \"@c \";
798                     yesno = \$2;
799                     c2 = tolower(c);
800                     gsub(/_/, \"-\", c2);
801                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
802                 }
803             }
804         }"
805 }
806
807 print_enabled(){
808     suf=$1
809     shift
810     for v; do
811         enabled $v && printf "%s\n" ${v%$suf}
812     done
813 }
814
815 append(){
816     var=$1
817     shift
818     eval "$var=\"\$$var $*\""
819 }
820
821 prepend(){
822     var=$1
823     shift
824     eval "$var=\"$* \$$var\""
825 }
826
827 unique(){
828     var=$1
829     uniq_list=""
830     for tok in $(eval echo \$$var); do
831         uniq_list="$(filter_out $tok $uniq_list) $tok"
832     done
833     eval "$var=\"${uniq_list}\""
834 }
835
836 add_cppflags(){
837     append CPPFLAGS "$@"
838 }
839
840 add_cflags(){
841     append CFLAGS $($cflags_filter "$@")
842 }
843
844 add_cflags_headers(){
845     append CFLAGS_HEADERS $($cflags_filter "$@")
846 }
847
848 add_cxxflags(){
849     append CXXFLAGS $($cflags_filter "$@")
850 }
851
852 add_asflags(){
853     append ASFLAGS $($asflags_filter "$@")
854 }
855
856 add_objcflags(){
857     append OBJCFLAGS $($objcflags_filter "$@")
858 }
859
860 add_ldflags(){
861     append LDFLAGS $($ldflags_filter "$@")
862 }
863
864 add_ldexeflags(){
865     append LDEXEFLAGS $($ldflags_filter "$@")
866 }
867
868 add_ldlibflags(){
869     append LDLIBFLAGS $($ldflags_filter "$@")
870 }
871
872 add_stripflags(){
873     append ASMSTRIPFLAGS "$@"
874 }
875
876 add_extralibs(){
877     prepend extralibs $($ldflags_filter "$@")
878 }
879
880 add_host_cppflags(){
881     append host_cppflags "$@"
882 }
883
884 add_host_cflags(){
885     append host_cflags $($host_cflags_filter "$@")
886 }
887
888 add_host_ldflags(){
889     append host_ldflags $($host_ldflags_filter "$@")
890 }
891
892 add_compat(){
893     append compat_objs $1
894     shift
895     map 'add_cppflags -D$v' "$@"
896 }
897
898 check_cmd(){
899     log "$@"
900     "$@" >> $logfile 2>&1
901 }
902
903 check_stat(){
904     log check_stat "$@"
905     stat "$1" >> $logfile 2>&1
906 }
907
908 cc_o(){
909     eval printf '%s\\n' $CC_O
910 }
911
912 cc_e(){
913     eval printf '%s\\n' $CC_E
914 }
915
916 check_cc(){
917     log check_cc "$@"
918     cat > $TMPC
919     log_file $TMPC
920     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
921 }
922
923 check_cxx(){
924     log check_cxx "$@"
925     cat > $TMPCPP
926     log_file $TMPCPP
927     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
928 }
929
930 check_objcc(){
931     log check_objcc "$@"
932     cat > $TMPM
933     log_file $TMPM
934     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
935 }
936
937 check_cpp(){
938     log check_cpp "$@"
939     cat > $TMPC
940     log_file $TMPC
941     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
942 }
943
944 as_o(){
945     eval printf '%s\\n' $AS_O
946 }
947
948 check_as(){
949     log check_as "$@"
950     cat > $TMPS
951     log_file $TMPS
952     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
953 }
954
955 check_inline_asm(){
956     log check_inline_asm "$@"
957     name="$1"
958     code="$2"
959     shift 2
960     disable $name
961     check_cc "$@" <<EOF && enable $name
962 void foo(void){ __asm__ volatile($code); }
963 EOF
964 }
965
966 check_inline_asm_flags(){
967     log check_inline_asm_flags "$@"
968     name="$1"
969     code="$2"
970     flags=''
971     shift 2
972     while [ "$1" != "" ]; do
973       append flags $1
974       shift
975     done;
976     disable $name
977     cat > $TMPC <<EOF
978 void foo(void){ __asm__ volatile($code); }
979 EOF
980     log_file $TMPC
981     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
982     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
983 }
984
985 check_insn(){
986     log check_insn "$@"
987     check_inline_asm ${1}_inline "\"$2\""
988     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
989 }
990
991 check_x86asm(){
992     log check_x86asm "$@"
993     echo "$1" > $TMPS
994     log_file $TMPS
995     shift 1
996     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
997 }
998
999 ld_o(){
1000     eval printf '%s\\n' $LD_O
1001 }
1002
1003 check_ld(){
1004     log check_ld "$@"
1005     type=$1
1006     shift 1
1007     flags=$(filter_out '-l*|*.so' $@)
1008     libs=$(filter '-l*|*.so' $@)
1009     check_$type $($cflags_filter $flags) || return
1010     flags=$($ldflags_filter $flags)
1011     libs=$($ldflags_filter $libs)
1012     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1013 }
1014
1015 print_include(){
1016     hdr=$1
1017     test "${hdr%.h}" = "${hdr}" &&
1018         echo "#include $hdr"    ||
1019         echo "#include <$hdr>"
1020 }
1021
1022 check_code(){
1023     log check_code "$@"
1024     check=$1
1025     headers=$2
1026     code=$3
1027     shift 3
1028     {
1029         for hdr in $headers; do
1030             print_include $hdr
1031         done
1032         echo "int main(void) { $code; return 0; }"
1033     } | check_$check "$@"
1034 }
1035
1036 check_cppflags(){
1037     log check_cppflags "$@"
1038     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1039 int x;
1040 EOF
1041 }
1042
1043 test_cflags(){
1044     log test_cflags "$@"
1045     set -- $($cflags_filter "$@")
1046     check_cc "$@" <<EOF
1047 int x;
1048 EOF
1049 }
1050
1051 check_cflags(){
1052     log check_cflags "$@"
1053     test_cflags "$@" && add_cflags "$@"
1054 }
1055
1056 check_cxxflags(){
1057     log check_cxxflags "$@"
1058     set -- $($cflags_filter "$@")
1059     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1060 int x;
1061 EOF
1062 }
1063
1064 test_objcflags(){
1065     log test_objcflags "$@"
1066     set -- $($objcflags_filter "$@")
1067     check_objcc "$@" <<EOF
1068 int x;
1069 EOF
1070 }
1071
1072 check_objcflags(){
1073     log check_objcflags "$@"
1074     test_objcflags "$@" && add_objcflags "$@"
1075 }
1076
1077 test_ldflags(){
1078     log test_ldflags "$@"
1079     check_ld "cc" "$@" <<EOF
1080 int main(void){ return 0; }
1081 EOF
1082 }
1083
1084 check_ldflags(){
1085     log check_ldflags "$@"
1086     test_ldflags "$@" && add_ldflags "$@"
1087 }
1088
1089 test_stripflags(){
1090     log test_stripflags "$@"
1091     # call check_cc to get a fresh TMPO
1092     check_cc <<EOF
1093 int main(void) { return 0; }
1094 EOF
1095     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1096 }
1097
1098 check_stripflags(){
1099     log check_stripflags "$@"
1100     test_stripflags "$@" && add_stripflags "$@"
1101 }
1102
1103 check_header(){
1104     log check_header "$@"
1105     header=$1
1106     shift
1107     disable_safe $header
1108     check_cpp "$@" <<EOF && enable_safe $header
1109 #include <$header>
1110 int x;
1111 EOF
1112 }
1113
1114 check_header_objcc(){
1115     log check_header_objcc "$@"
1116     rm -f -- "$TMPO"
1117     header=$1
1118     shift
1119     disable_safe $header
1120     {
1121        echo "#include <$header>"
1122        echo "int main(void) { return 0; }"
1123     } | check_objcc && check_stat "$TMPO" && enable_safe $header
1124 }
1125
1126 check_apple_framework(){
1127     log check_apple_framework "$@"
1128     framework="$1"
1129     name="$(tolower $framework)"
1130     header="${framework}/${framework}.h"
1131     disable $name
1132     check_header_objcc $header && enable $name && add_extralibs "-framework $framework"
1133 }
1134
1135 check_func(){
1136     log check_func "$@"
1137     func=$1
1138     shift
1139     disable $func
1140     check_ld "cc" "$@" <<EOF && enable $func
1141 extern int $func();
1142 int main(void){ $func(); }
1143 EOF
1144 }
1145
1146 check_complexfunc(){
1147     log check_complexfunc "$@"
1148     func=$1
1149     narg=$2
1150     shift 2
1151     test $narg = 2 && args="f, g" || args="f * I"
1152     disable $func
1153     check_ld "cc" "$@" <<EOF && enable $func
1154 #include <complex.h>
1155 #include <math.h>
1156 float foo(complex float f, complex float g) { return $func($args); }
1157 int main(void){ return (int) foo; }
1158 EOF
1159 }
1160
1161 check_mathfunc(){
1162     log check_mathfunc "$@"
1163     func=$1
1164     narg=$2
1165     shift 2
1166     test $narg = 2 && args="f, g" || args="f"
1167     disable $func
1168     check_ld "cc" "$@" <<EOF && enable $func
1169 #include <math.h>
1170 float foo(float f, float g) { return $func($args); }
1171 int main(void){ return (int) foo; }
1172 EOF
1173 }
1174
1175 check_func_headers(){
1176     log check_func_headers "$@"
1177     headers=$1
1178     funcs=$2
1179     shift 2
1180     {
1181         for hdr in $headers; do
1182             print_include $hdr
1183         done
1184         echo "#include <stdint.h>"
1185         for func in $funcs; do
1186             echo "long check_$func(void) { return (long) $func; }"
1187         done
1188         echo "int main(void) { int ret = 0;"
1189         # LTO could optimize out the test functions without this
1190         for func in $funcs; do
1191             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1192         done
1193         echo "return ret; }"
1194     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1195 }
1196
1197 check_class_headers_cpp(){
1198     log check_class_headers_cpp "$@"
1199     headers=$1
1200     classes=$2
1201     shift 2
1202     {
1203         for hdr in $headers; do
1204             echo "#include <$hdr>"
1205         done
1206         echo "int main(void) { "
1207         i=1
1208         for class in $classes; do
1209             echo "$class obj$i;"
1210             i=$(expr $i + 1)
1211         done
1212         echo "return 0; }"
1213     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1214 }
1215
1216 check_cpp_condition(){
1217     log check_cpp_condition "$@"
1218     header=$1
1219     condition=$2
1220     shift 2
1221     check_cpp "$@" <<EOF
1222 #include <$header>
1223 #if !($condition)
1224 #error "unsatisfied condition: $condition"
1225 #endif
1226 EOF
1227 }
1228
1229 test_cflags_cc(){
1230     log test_cflags_cc "$@"
1231     flags=$1
1232     header=$2
1233     condition=$3
1234     shift 3
1235     set -- $($cflags_filter "$flags")
1236     check_cc "$@" <<EOF
1237 #include <$header>
1238 #if !($condition)
1239 #error "unsatisfied condition: $condition"
1240 #endif
1241 EOF
1242 }
1243
1244 check_lib(){
1245     log check_lib "$@"
1246     name="$1"
1247     headers="$2"
1248     funcs="$3"
1249     shift 3
1250     disable $name
1251     check_func_headers "$headers" "$funcs" "$@" &&
1252         enable $name && add_extralibs "$@"
1253 }
1254
1255 check_lib_cpp(){
1256     log check_lib_cpp "$@"
1257     headers="$1"
1258     classes="$2"
1259     shift 2
1260     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1261 }
1262
1263 check_pkg_config(){
1264     log check_pkg_config "$@"
1265     pkg_version="$1"
1266     pkg="${1%% *}"
1267     headers="$2"
1268     funcs="$3"
1269     shift 3
1270     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1271     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1272     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1273     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1274         set_safe "${pkg}_cflags"    $pkg_cflags &&
1275         set_safe "${pkg}_extralibs" $pkg_libs
1276 }
1277
1278 check_exec(){
1279     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1280 }
1281
1282 check_exec_crash(){
1283     log check_exec_crash "$@"
1284     code=$(cat)
1285
1286     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1287     # are safe but may not be available everywhere.  Thus we use
1288     # raise(SIGTERM) instead.  The check is run in a subshell so we
1289     # can redirect the "Terminated" message from the shell.  SIGBUS
1290     # is not defined by standard C so it is used conditionally.
1291
1292     (check_exec "$@") >> $logfile 2>&1 <<EOF
1293 #include <signal.h>
1294 static void sighandler(int sig){
1295     raise(SIGTERM);
1296 }
1297 int foo(void){
1298     $code
1299 }
1300 int (*func_ptr)(void) = foo;
1301 int main(void){
1302     signal(SIGILL, sighandler);
1303     signal(SIGFPE, sighandler);
1304     signal(SIGSEGV, sighandler);
1305 #ifdef SIGBUS
1306     signal(SIGBUS, sighandler);
1307 #endif
1308     return func_ptr();
1309 }
1310 EOF
1311 }
1312
1313 check_type(){
1314     log check_type "$@"
1315     headers=$1
1316     type=$2
1317     shift 2
1318     disable_safe "$type"
1319     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1320 }
1321
1322 check_struct(){
1323     log check_struct "$@"
1324     headers=$1
1325     struct=$2
1326     member=$3
1327     shift 3
1328     disable_safe "${struct}_${member}"
1329     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1330         enable_safe "${struct}_${member}"
1331 }
1332
1333 check_builtin(){
1334     log check_builtin "$@"
1335     name=$1
1336     headers=$2
1337     builtin=$3
1338     shift 3
1339     disable "$name"
1340     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1341 }
1342
1343 check_compile_assert(){
1344     log check_compile_assert "$@"
1345     name=$1
1346     headers=$2
1347     condition=$3
1348     shift 3
1349     disable "$name"
1350     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1351 }
1352
1353 require(){
1354     log require "$@"
1355     name_version="$1"
1356     name="${1%% *}"
1357     headers="$2"
1358     func="$3"
1359     shift 3
1360     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1361 }
1362
1363 require_cpp(){
1364     name="$1"
1365     headers="$2"
1366     classes="$3"
1367     shift 3
1368     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1369 }
1370
1371 use_pkg_config(){
1372     log use_pkg_config "$@"
1373     pkg="$1"
1374     check_pkg_config "$@" || return 1
1375     add_cflags    $(get_safe "${pkg}_cflags")
1376     add_extralibs $(get_safe "${pkg}_extralibs")
1377 }
1378
1379 require_pkg_config(){
1380     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1381 }
1382
1383 hostcc_e(){
1384     eval printf '%s\\n' $HOSTCC_E
1385 }
1386
1387 hostcc_o(){
1388     eval printf '%s\\n' $HOSTCC_O
1389 }
1390
1391 check_host_cc(){
1392     log check_host_cc "$@"
1393     cat > $TMPC
1394     log_file $TMPC
1395     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1396 }
1397
1398 check_host_cpp(){
1399     log check_host_cpp "$@"
1400     cat > $TMPC
1401     log_file $TMPC
1402     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1403 }
1404
1405 check_host_cppflags(){
1406     log check_host_cppflags "$@"
1407     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1408 int x;
1409 EOF
1410 }
1411
1412 check_host_cflags(){
1413     log check_host_cflags "$@"
1414     set -- $($host_cflags_filter "$@")
1415     check_host_cc "$@" <<EOF && append host_cflags "$@"
1416 int x;
1417 EOF
1418 }
1419
1420 check_host_cpp_condition(){
1421     log check_host_cpp_condition "$@"
1422     header=$1
1423     condition=$2
1424     shift 2
1425     check_host_cpp "$@" <<EOF
1426 #include <$header>
1427 #if !($condition)
1428 #error "unsatisfied condition: $condition"
1429 #endif
1430 EOF
1431 }
1432
1433 cp_if_changed(){
1434     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1435     mkdir -p "$(dirname $2)"
1436     cp -f "$1" "$2"
1437 }
1438
1439 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1440 # system-dependent things.
1441
1442 AVCODEC_COMPONENTS="
1443     bsfs
1444     decoders
1445     encoders
1446     hwaccels
1447     parsers
1448 "
1449
1450 AVDEVICE_COMPONENTS="
1451     indevs
1452     outdevs
1453 "
1454
1455 AVFILTER_COMPONENTS="
1456     filters
1457 "
1458
1459 AVFORMAT_COMPONENTS="
1460     demuxers
1461     muxers
1462     protocols
1463 "
1464
1465 AVRESAMPLE_COMPONENTS=""
1466
1467 AVUTIL_COMPONENTS=""
1468
1469 COMPONENT_LIST="
1470     $AVCODEC_COMPONENTS
1471     $AVDEVICE_COMPONENTS
1472     $AVFILTER_COMPONENTS
1473     $AVFORMAT_COMPONENTS
1474     $AVRESAMPLE_COMPONENTS
1475     $AVUTIL_COMPONENTS
1476 "
1477
1478 EXAMPLE_LIST="
1479     avio_dir_cmd_example
1480     avio_reading_example
1481     decode_audio_example
1482     decode_video_example
1483     demuxing_decoding_example
1484     encode_audio_example
1485     encode_video_example
1486     extract_mvs_example
1487     filter_audio_example
1488     filtering_audio_example
1489     filtering_video_example
1490     http_multiclient_example
1491     hw_decode_example
1492     metadata_example
1493     muxing_example
1494     qsvdec_example
1495     remuxing_example
1496     resampling_audio_example
1497     scaling_video_example
1498     transcode_aac_example
1499     transcoding_example
1500 "
1501
1502 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1503     alsa
1504     avfoundation
1505     bzlib
1506     coreimage
1507     iconv
1508     jack
1509     libxcb
1510     libxcb_shm
1511     libxcb_shape
1512     libxcb_xfixes
1513     lzma
1514     schannel
1515     sdl2
1516     securetransport
1517     sndio
1518     xlib
1519     zlib
1520 "
1521
1522 EXTERNAL_LIBRARY_GPL_LIST="
1523     avisynth
1524     frei0r
1525     libcdio
1526     librubberband
1527     libvidstab
1528     libx264
1529     libx265
1530     libxavs
1531     libxvid
1532 "
1533
1534 EXTERNAL_LIBRARY_NONFREE_LIST="
1535     decklink
1536     libndi_newtek
1537     libfdk_aac
1538     openssl
1539 "
1540
1541 EXTERNAL_LIBRARY_VERSION3_LIST="
1542     gmp
1543     libopencore_amrnb
1544     libopencore_amrwb
1545     libvo_amrwbenc
1546 "
1547
1548 EXTERNAL_LIBRARY_GPLV3_LIST="
1549     libsmbclient
1550 "
1551
1552 EXTERNAL_LIBRARY_LIST="
1553     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1554     $EXTERNAL_LIBRARY_GPL_LIST
1555     $EXTERNAL_LIBRARY_NONFREE_LIST
1556     $EXTERNAL_LIBRARY_VERSION3_LIST
1557     $EXTERNAL_LIBRARY_GPLV3_LIST
1558     chromaprint
1559     gcrypt
1560     gnutls
1561     jni
1562     ladspa
1563     libass
1564     libbluray
1565     libbs2b
1566     libcaca
1567     libcelt
1568     libdc1394
1569     libflite
1570     libfontconfig
1571     libfreetype
1572     libfribidi
1573     libgme
1574     libgsm
1575     libiec61883
1576     libilbc
1577     libkvazaar
1578     libmodplug
1579     libmp3lame
1580     libmysofa
1581     libopencv
1582     libopenh264
1583     libopenjpeg
1584     libopenmpt
1585     libopus
1586     libpulse
1587     librsvg
1588     librtmp
1589     libshine
1590     libsmbclient
1591     libsnappy
1592     libsoxr
1593     libspeex
1594     libssh
1595     libtesseract
1596     libtheora
1597     libtwolame
1598     libv4l2
1599     libvmaf
1600     libvorbis
1601     libvpx
1602     libwavpack
1603     libwebp
1604     libzimg
1605     libzmq
1606     libzvbi
1607     mediacodec
1608     openal
1609     opencl
1610     opengl
1611 "
1612
1613 HWACCEL_AUTODETECT_LIBRARY_LIST="
1614     audiotoolbox
1615     crystalhd
1616     cuda
1617     cuvid
1618     d3d11va
1619     dxva2
1620     nvenc
1621     vaapi
1622     vda
1623     vdpau
1624     videotoolbox
1625     xvmc
1626 "
1627
1628 HWACCEL_LIBRARY_NONFREE_LIST="
1629     cuda_sdk
1630     libnpp
1631 "
1632
1633 HWACCEL_LIBRARY_LIST="
1634     $HWACCEL_AUTODETECT_LIBRARY_LIST
1635     $HWACCEL_LIBRARY_NONFREE_LIST
1636     libmfx
1637     mmal
1638     omx
1639 "
1640
1641 DOCUMENT_LIST="
1642     doc
1643     htmlpages
1644     manpages
1645     podpages
1646     txtpages
1647 "
1648
1649 FEATURE_LIST="
1650     ftrapv
1651     gray
1652     hardcoded_tables
1653     omx_rpi
1654     runtime_cpudetect
1655     safe_bitstream_reader
1656     shared
1657     small
1658     static
1659     swscale_alpha
1660 "
1661
1662 LIBRARY_LIST="
1663     avcodec
1664     avdevice
1665     avfilter
1666     avformat
1667     avresample
1668     avutil
1669     postproc
1670     swresample
1671     swscale
1672 "
1673
1674 LICENSE_LIST="
1675     gpl
1676     nonfree
1677     version3
1678 "
1679
1680 PROGRAM_LIST="
1681     ffplay
1682     ffprobe
1683     ffserver
1684     ffmpeg
1685 "
1686
1687 SUBSYSTEM_LIST="
1688     dct
1689     dwt
1690     error_resilience
1691     faan
1692     fast_unaligned
1693     fft
1694     lsp
1695     lzo
1696     mdct
1697     pixelutils
1698     network
1699     rdft
1700 "
1701
1702 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1703 CONFIG_LIST="
1704     $DOCUMENT_LIST
1705     $EXAMPLE_LIST
1706     $EXTERNAL_LIBRARY_LIST
1707     $HWACCEL_LIBRARY_LIST
1708     $FEATURE_LIST
1709     $LICENSE_LIST
1710     $LIBRARY_LIST
1711     $PROGRAM_LIST
1712     $SUBSYSTEM_LIST
1713     autodetect
1714     fontconfig
1715     linux_perf
1716     memory_poisoning
1717     neon_clobber_test
1718     ossfuzz
1719     pic
1720     thumb
1721     valgrind_backtrace
1722     xmm_clobber_test
1723     $COMPONENT_LIST
1724 "
1725
1726 THREADS_LIST="
1727     pthreads
1728     os2threads
1729     w32threads
1730 "
1731
1732 ATOMICS_LIST="
1733     atomics_gcc
1734     atomics_suncc
1735     atomics_win32
1736 "
1737
1738 AUTODETECT_LIBS="
1739     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1740     $HWACCEL_AUTODETECT_LIBRARY_LIST
1741     $THREADS_LIST
1742 "
1743
1744 ARCH_LIST="
1745     aarch64
1746     alpha
1747     arm
1748     avr32
1749     avr32_ap
1750     avr32_uc
1751     bfin
1752     ia64
1753     m68k
1754     mips
1755     mips64
1756     parisc
1757     ppc
1758     ppc64
1759     s390
1760     sh4
1761     sparc
1762     sparc64
1763     tilegx
1764     tilepro
1765     tomi
1766     x86
1767     x86_32
1768     x86_64
1769 "
1770
1771 ARCH_EXT_LIST_ARM="
1772     armv5te
1773     armv6
1774     armv6t2
1775     armv8
1776     neon
1777     vfp
1778     vfpv3
1779     setend
1780 "
1781
1782 ARCH_EXT_LIST_MIPS="
1783     mipsfpu
1784     mips32r2
1785     mips32r5
1786     mips64r2
1787     mips32r6
1788     mips64r6
1789     mipsdsp
1790     mipsdspr2
1791     msa
1792 "
1793
1794 ARCH_EXT_LIST_LOONGSON="
1795     loongson2
1796     loongson3
1797     mmi
1798 "
1799
1800 ARCH_EXT_LIST_X86_SIMD="
1801     aesni
1802     amd3dnow
1803     amd3dnowext
1804     avx
1805     avx2
1806     fma3
1807     fma4
1808     mmx
1809     mmxext
1810     sse
1811     sse2
1812     sse3
1813     sse4
1814     sse42
1815     ssse3
1816     xop
1817 "
1818
1819 ARCH_EXT_LIST_PPC="
1820     altivec
1821     dcbzl
1822     ldbrx
1823     power8
1824     ppc4xx
1825     vsx
1826 "
1827
1828 ARCH_EXT_LIST_X86="
1829     $ARCH_EXT_LIST_X86_SIMD
1830     cpunop
1831     i686
1832 "
1833
1834 ARCH_EXT_LIST="
1835     $ARCH_EXT_LIST_ARM
1836     $ARCH_EXT_LIST_PPC
1837     $ARCH_EXT_LIST_X86
1838     $ARCH_EXT_LIST_MIPS
1839     $ARCH_EXT_LIST_LOONGSON
1840 "
1841
1842 ARCH_FEATURES="
1843     aligned_stack
1844     fast_64bit
1845     fast_clz
1846     fast_cmov
1847     local_aligned_8
1848     local_aligned_16
1849     local_aligned_32
1850     simd_align_16
1851     simd_align_32
1852 "
1853
1854 BUILTIN_LIST="
1855     atomic_cas_ptr
1856     machine_rw_barrier
1857     MemoryBarrier
1858     mm_empty
1859     rdtsc
1860     sarestart
1861     sem_timedwait
1862     sync_val_compare_and_swap
1863 "
1864 HAVE_LIST_CMDLINE="
1865     inline_asm
1866     symver
1867     x86asm
1868 "
1869
1870 HAVE_LIST_PUB="
1871     bigendian
1872     fast_unaligned
1873 "
1874
1875 HEADERS_LIST="
1876     altivec_h
1877     arpa_inet_h
1878     asm_types_h
1879     cdio_paranoia_h
1880     cdio_paranoia_paranoia_h
1881     cuda_h
1882     d3d11_h
1883     dispatch_dispatch_h
1884     dev_bktr_ioctl_bt848_h
1885     dev_bktr_ioctl_meteor_h
1886     dev_ic_bt8xx_h
1887     dev_video_bktr_ioctl_bt848_h
1888     dev_video_meteor_ioctl_meteor_h
1889     direct_h
1890     dirent_h
1891     dlfcn_h
1892     dxgidebug_h
1893     dxva_h
1894     ES2_gl_h
1895     gsm_h
1896     io_h
1897     mach_mach_time_h
1898     machine_ioctl_bt848_h
1899     machine_ioctl_meteor_h
1900     malloc_h
1901     opencv2_core_core_c_h
1902     openjpeg_2_2_openjpeg_h
1903     openjpeg_2_1_openjpeg_h
1904     openjpeg_2_0_openjpeg_h
1905     openjpeg_1_5_openjpeg_h
1906     OpenGL_gl3_h
1907     poll_h
1908     soundcard_h
1909     stdatomic_h
1910     sys_mman_h
1911     sys_param_h
1912     sys_resource_h
1913     sys_select_h
1914     sys_soundcard_h
1915     sys_time_h
1916     sys_un_h
1917     sys_videoio_h
1918     termios_h
1919     udplite_h
1920     unistd_h
1921     valgrind_valgrind_h
1922     windows_h
1923     winsock2_h
1924 "
1925
1926 INTRINSICS_LIST="
1927     intrinsics_neon
1928 "
1929
1930 COMPLEX_FUNCS="
1931     cabs
1932     cexp
1933 "
1934
1935 MATH_FUNCS="
1936     atanf
1937     atan2f
1938     cbrt
1939     cbrtf
1940     copysign
1941     cosf
1942     erf
1943     exp2
1944     exp2f
1945     expf
1946     hypot
1947     isfinite
1948     isinf
1949     isnan
1950     ldexpf
1951     llrint
1952     llrintf
1953     log2
1954     log2f
1955     log10f
1956     lrint
1957     lrintf
1958     powf
1959     rint
1960     round
1961     roundf
1962     sinf
1963     trunc
1964     truncf
1965 "
1966
1967 SYSTEM_FUNCS="
1968     access
1969     aligned_malloc
1970     arc4random
1971     clock_gettime
1972     closesocket
1973     CommandLineToArgvW
1974     CoTaskMemFree
1975     CryptGenRandom
1976     dlopen
1977     fcntl
1978     flt_lim
1979     fork
1980     getaddrinfo
1981     gethrtime
1982     getopt
1983     GetProcessAffinityMask
1984     GetProcessMemoryInfo
1985     GetProcessTimes
1986     getrusage
1987     GetSystemTimeAsFileTime
1988     gettimeofday
1989     glob
1990     glXGetProcAddress
1991     gmtime_r
1992     inet_aton
1993     isatty
1994     jack_port_get_latency_range
1995     kbhit
1996     LoadLibrary
1997     localtime_r
1998     lstat
1999     lzo1x_999_compress
2000     mach_absolute_time
2001     MapViewOfFile
2002     memalign
2003     mkstemp
2004     mmap
2005     mprotect
2006     nanosleep
2007     PeekNamedPipe
2008     posix_memalign
2009     pthread_cancel
2010     sched_getaffinity
2011     SetConsoleTextAttribute
2012     SetConsoleCtrlHandler
2013     setmode
2014     setrlimit
2015     Sleep
2016     strerror_r
2017     sysconf
2018     sysctl
2019     usleep
2020     UTGetOSTypeFromString
2021     VirtualAlloc
2022     wglGetProcAddress
2023 "
2024
2025 TOOLCHAIN_FEATURES="
2026     as_dn_directive
2027     as_fpu_directive
2028     as_func
2029     as_object_arch
2030     asm_mod_q
2031     attribute_may_alias
2032     attribute_packed
2033     blocks_extension
2034     ebp_available
2035     ebx_available
2036     gnu_as
2037     gnu_windres
2038     ibm_asm
2039     inline_asm_direct_symbol_refs
2040     inline_asm_labels
2041     inline_asm_nonlocal_labels
2042     pragma_deprecated
2043     rsync_contimeout
2044     symver_asm_label
2045     symver_gnu_asm
2046     vfp_args
2047     xform_asm
2048     xmm_clobbers
2049 "
2050
2051 TYPES_LIST="
2052     CONDITION_VARIABLE_Ptr
2053     socklen_t
2054     struct_addrinfo
2055     struct_group_source_req
2056     struct_ip_mreq_source
2057     struct_ipv6_mreq
2058     struct_msghdr_msg_flags
2059     struct_pollfd
2060     struct_rusage_ru_maxrss
2061     struct_sctp_event_subscribe
2062     struct_sockaddr_in6
2063     struct_sockaddr_sa_len
2064     struct_sockaddr_storage
2065     struct_stat_st_mtim_tv_nsec
2066     struct_v4l2_frmivalenum_discrete
2067 "
2068
2069 HAVE_LIST="
2070     $ARCH_EXT_LIST
2071     $(add_suffix _external $ARCH_EXT_LIST)
2072     $(add_suffix _inline   $ARCH_EXT_LIST)
2073     $ARCH_FEATURES
2074     $ATOMICS_LIST
2075     $BUILTIN_LIST
2076     $COMPLEX_FUNCS
2077     $HAVE_LIST_CMDLINE
2078     $HAVE_LIST_PUB
2079     $HEADERS_LIST
2080     $INTRINSICS_LIST
2081     $MATH_FUNCS
2082     $SYSTEM_FUNCS
2083     $THREADS_LIST
2084     $TOOLCHAIN_FEATURES
2085     $TYPES_LIST
2086     atomics_native
2087     dos_paths
2088     libc_msvcrt
2089     makeinfo
2090     makeinfo_html
2091     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2092     perl
2093     pod2man
2094     section_data_rel_ro
2095     texi2html
2096     threads
2097     uwp
2098     vaapi_drm
2099     vaapi_x11
2100     vdpau_x11
2101     winrt
2102 "
2103
2104 # options emitted with CONFIG_ prefix but not available on the command line
2105 CONFIG_EXTRA="
2106     aandcttables
2107     ac3dsp
2108     audio_frame_queue
2109     audiodsp
2110     blockdsp
2111     bswapdsp
2112     cabac
2113     dirac_parse
2114     dvprofile
2115     exif
2116     faandct
2117     faanidct
2118     fdctdsp
2119     flacdsp
2120     fmtconvert
2121     frame_thread_encoder
2122     g722dsp
2123     golomb
2124     gplv3
2125     h263dsp
2126     h264chroma
2127     h264dsp
2128     h264parse
2129     h264pred
2130     h264qpel
2131     hevcparse
2132     hpeldsp
2133     huffman
2134     huffyuvdsp
2135     huffyuvencdsp
2136     idctdsp
2137     iirfilter
2138     mdct15
2139     intrax8
2140     iso_media
2141     ividsp
2142     jpegtables
2143     lgplv3
2144     libx262
2145     llauddsp
2146     llviddsp
2147     llvidencdsp
2148     lpc
2149     lzf
2150     me_cmp
2151     mpeg_er
2152     mpegaudio
2153     mpegaudiodsp
2154     mpegaudioheader
2155     mpegvideo
2156     mpegvideoenc
2157     mss34dsp
2158     pixblockdsp
2159     qpeldsp
2160     qsv
2161     qsvdec
2162     qsvenc
2163     rangecoder
2164     riffdec
2165     riffenc
2166     rtpdec
2167     rtpenc_chain
2168     rv34dsp
2169     sinewin
2170     snappy
2171     srtp
2172     startcode
2173     texturedsp
2174     texturedspenc
2175     tpeldsp
2176     vaapi_encode
2177     vc1dsp
2178     videodsp
2179     vp3dsp
2180     vp56dsp
2181     vp8dsp
2182     wma_freqs
2183     wmv2dsp
2184 "
2185
2186 CMDLINE_SELECT="
2187     $ARCH_EXT_LIST
2188     $CONFIG_LIST
2189     $HAVE_LIST_CMDLINE
2190     $THREADS_LIST
2191     asm
2192     cross_compile
2193     debug
2194     extra_warnings
2195     logging
2196     lto
2197     optimizations
2198     rpath
2199     stripping
2200 "
2201
2202 PATHS_LIST="
2203     bindir
2204     datadir
2205     docdir
2206     incdir
2207     libdir
2208     mandir
2209     pkgconfigdir
2210     prefix
2211     shlibdir
2212     install_name_dir
2213 "
2214
2215 CMDLINE_SET="
2216     $PATHS_LIST
2217     ar
2218     arch
2219     as
2220     assert_level
2221     build_suffix
2222     cc
2223     objcc
2224     cpu
2225     cross_prefix
2226     custom_allocator
2227     cxx
2228     dep_cc
2229     doxygen
2230     env
2231     extra_version
2232     gas
2233     host_cc
2234     host_cflags
2235     host_extralibs
2236     host_ld
2237     host_ldflags
2238     host_os
2239     ignore_tests
2240     install
2241     ld
2242     ln_s
2243     logfile
2244     malloc_prefix
2245     nm
2246     optflags
2247     nvccflags
2248     pkg_config
2249     pkg_config_flags
2250     progs_suffix
2251     random_seed
2252     ranlib
2253     samples
2254     strip
2255     sws_max_filter_size
2256     sysinclude
2257     sysroot
2258     target_exec
2259     target_os
2260     target_path
2261     target_samples
2262     tempprefix
2263     toolchain
2264     valgrind
2265     x86asmexe
2266 "
2267
2268 CMDLINE_APPEND="
2269     extra_cflags
2270     extra_cxxflags
2271     extra_objcflags
2272     host_cppflags
2273 "
2274
2275 # code dependency declarations
2276
2277 # architecture extensions
2278
2279 armv5te_deps="arm"
2280 armv6_deps="arm"
2281 armv6t2_deps="arm"
2282 armv8_deps="aarch64"
2283 neon_deps_any="aarch64 arm"
2284 intrinsics_neon_deps="neon"
2285 vfp_deps_any="aarch64 arm"
2286 vfpv3_deps="vfp"
2287 setend_deps="arm"
2288
2289 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2290
2291 loongson2_deps="mips"
2292 loongson3_deps="mips"
2293 mipsfpu_deps="mips"
2294 mipsdsp_deps="mips"
2295 mipsdspr2_deps="mips"
2296 mips32r2_deps="mips"
2297 mips32r5_deps="mips"
2298 mips32r6_deps="mips"
2299 mips64r2_deps="mips"
2300 mips64r6_deps="mips"
2301 msa_deps="mipsfpu"
2302 mmi_deps="mips"
2303
2304 altivec_deps="ppc"
2305 dcbzl_deps="ppc"
2306 ldbrx_deps="ppc"
2307 ppc4xx_deps="ppc"
2308 vsx_deps="altivec"
2309 power8_deps="vsx"
2310
2311 cpunop_deps="i686"
2312 x86_64_select="i686"
2313 x86_64_suggest="fast_cmov"
2314
2315 amd3dnow_deps="mmx"
2316 amd3dnowext_deps="amd3dnow"
2317 i686_deps="x86"
2318 mmx_deps="x86"
2319 mmxext_deps="mmx"
2320 sse_deps="mmxext"
2321 sse2_deps="sse"
2322 sse3_deps="sse2"
2323 ssse3_deps="sse3"
2324 sse4_deps="ssse3"
2325 sse42_deps="sse4"
2326 aesni_deps="sse42"
2327 avx_deps="sse42"
2328 xop_deps="avx"
2329 fma3_deps="avx"
2330 fma4_deps="avx"
2331 avx2_deps="avx"
2332
2333 mmx_external_deps="x86asm"
2334 mmx_inline_deps="inline_asm"
2335 mmx_suggest="mmx_external mmx_inline"
2336
2337 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2338     eval dep=\$${ext}_deps
2339     eval ${ext}_external_deps='"${dep}_external"'
2340     eval ${ext}_inline_deps='"${dep}_inline"'
2341     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2342 done
2343
2344 aligned_stack_if_any="aarch64 ppc x86"
2345 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2346 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2347 fast_unaligned_if_any="aarch64 ppc x86"
2348 simd_align_16_if_any="altivec neon sse"
2349 simd_align_32_if_any="avx"
2350
2351 # system capabilities
2352 symver_if_any="symver_asm_label symver_gnu_asm"
2353 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2354
2355 # threading support
2356 atomics_gcc_if="sync_val_compare_and_swap"
2357 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2358 atomics_win32_if="MemoryBarrier"
2359 atomics_native_if_any="$ATOMICS_LIST"
2360 w32threads_deps="atomics_native"
2361 threads_if_any="$THREADS_LIST"
2362
2363 # subsystems
2364 dct_select="rdft"
2365 dirac_parse_select="golomb"
2366 error_resilience_select="me_cmp"
2367 faandct_deps="faan fdctdsp"
2368 faanidct_deps="faan idctdsp"
2369 h264dsp_select="startcode"
2370 hevcparse_select="golomb"
2371 frame_thread_encoder_deps="encoders threads"
2372 intrax8_select="blockdsp idctdsp"
2373 mdct_select="fft"
2374 mdct15_select="fft"
2375 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2376 mpeg_er_select="error_resilience"
2377 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2378 mpegaudiodsp_select="dct"
2379 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2380 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2381 vc1dsp_select="h264chroma qpeldsp startcode"
2382 rdft_select="fft"
2383
2384 # decoders / encoders
2385 aac_decoder_select="mdct15 mdct sinewin"
2386 aac_fixed_decoder_select="mdct sinewin"
2387 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2388 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2389 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2390 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2391 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2392 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2393 adpcm_g722_decoder_select="g722dsp"
2394 adpcm_g722_encoder_select="g722dsp"
2395 aic_decoder_select="golomb idctdsp"
2396 alac_encoder_select="lpc"
2397 als_decoder_select="bswapdsp"
2398 amrnb_decoder_select="lsp"
2399 amrwb_decoder_select="lsp"
2400 amv_decoder_select="sp5x_decoder exif"
2401 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2402 ape_decoder_select="bswapdsp llauddsp"
2403 apng_decoder_select="zlib"
2404 apng_encoder_select="llvidencdsp zlib"
2405 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2406 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2407 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2408 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2409 atrac1_decoder_select="mdct sinewin"
2410 atrac3_decoder_select="mdct"
2411 atrac3p_decoder_select="mdct sinewin"
2412 avrn_decoder_select="exif jpegtables"
2413 bink_decoder_select="blockdsp hpeldsp"
2414 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2415 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2416 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2417 clearvideo_decoder_select="idctdsp"
2418 cllc_decoder_select="bswapdsp"
2419 comfortnoise_encoder_select="lpc"
2420 cook_decoder_select="audiodsp mdct sinewin"
2421 cscd_decoder_select="lzo"
2422 cscd_decoder_suggest="zlib"
2423 dca_decoder_select="mdct"
2424 dds_decoder_select="texturedsp"
2425 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2426 dnxhd_decoder_select="blockdsp idctdsp"
2427 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2428 dolby_e_decoder_select="mdct"
2429 dvvideo_decoder_select="dvprofile idctdsp"
2430 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2431 dxa_decoder_select="zlib"
2432 dxv_decoder_select="lzf texturedsp"
2433 eac3_decoder_select="ac3_decoder"
2434 eac3_encoder_select="ac3_encoder"
2435 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2436 eatgq_decoder_select="aandcttables"
2437 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2438 exr_decoder_select="zlib"
2439 ffv1_decoder_select="rangecoder"
2440 ffv1_encoder_select="rangecoder"
2441 ffvhuff_decoder_select="huffyuv_decoder"
2442 ffvhuff_encoder_select="huffyuv_encoder"
2443 fic_decoder_select="golomb"
2444 flac_decoder_select="flacdsp"
2445 flac_encoder_select="bswapdsp flacdsp lpc"
2446 flashsv2_decoder_select="zlib"
2447 flashsv2_encoder_select="zlib"
2448 flashsv_decoder_select="zlib"
2449 flashsv_encoder_select="zlib"
2450 flv_decoder_select="h263_decoder"
2451 flv_encoder_select="h263_encoder"
2452 fourxm_decoder_select="blockdsp bswapdsp"
2453 fraps_decoder_select="bswapdsp huffman"
2454 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2455 g729_decoder_select="audiodsp"
2456 h261_decoder_select="mpegvideo"
2457 h261_encoder_select="aandcttables mpegvideoenc"
2458 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2459 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2460 h263i_decoder_select="h263_decoder"
2461 h263p_decoder_select="h263_decoder"
2462 h263p_encoder_select="h263_encoder"
2463 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2464 h264_decoder_suggest="error_resilience"
2465 hap_decoder_select="snappy texturedsp"
2466 hap_encoder_deps="libsnappy"
2467 hap_encoder_select="texturedspenc"
2468 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2469 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2470 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2471 iac_decoder_select="imc_decoder"
2472 imc_decoder_select="bswapdsp fft mdct sinewin"
2473 indeo3_decoder_select="hpeldsp"
2474 indeo4_decoder_select="ividsp"
2475 indeo5_decoder_select="ividsp"
2476 interplay_video_decoder_select="hpeldsp"
2477 jpegls_decoder_select="mjpeg_decoder"
2478 jv_decoder_select="blockdsp"
2479 lagarith_decoder_select="llviddsp"
2480 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2481 magicyuv_decoder_select="llviddsp"
2482 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2483 metasound_decoder_select="lsp mdct sinewin"
2484 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2485 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2486 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2487 mjpegb_decoder_select="mjpeg_decoder"
2488 mlp_decoder_select="mlp_parser"
2489 mlp_encoder_select="lpc"
2490 motionpixels_decoder_select="bswapdsp"
2491 mp1_decoder_select="mpegaudio"
2492 mp1float_decoder_select="mpegaudio"
2493 mp2_decoder_select="mpegaudio"
2494 mp2float_decoder_select="mpegaudio"
2495 mp3_decoder_select="mpegaudio"
2496 mp3adu_decoder_select="mpegaudio"
2497 mp3adufloat_decoder_select="mpegaudio"
2498 mp3float_decoder_select="mpegaudio"
2499 mp3on4_decoder_select="mpegaudio"
2500 mp3on4float_decoder_select="mpegaudio"
2501 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2502 mpc8_decoder_select="mpegaudiodsp"
2503 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2504 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2505 mpegvideo_decoder_select="mpegvideo"
2506 mpeg1video_decoder_select="mpegvideo"
2507 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2508 mpeg2video_decoder_select="mpegvideo"
2509 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2510 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2511 mpeg4_encoder_select="h263_encoder"
2512 msa1_decoder_select="mss34dsp"
2513 mscc_decoder_select="zlib"
2514 msmpeg4v1_decoder_select="h263_decoder"
2515 msmpeg4v2_decoder_select="h263_decoder"
2516 msmpeg4v2_encoder_select="h263_encoder"
2517 msmpeg4v3_decoder_select="h263_decoder"
2518 msmpeg4v3_encoder_select="h263_encoder"
2519 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2520 mts2_decoder_select="mss34dsp"
2521 mxpeg_decoder_select="mjpeg_decoder"
2522 nellymoser_decoder_select="mdct sinewin"
2523 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2524 nuv_decoder_select="idctdsp lzo"
2525 on2avc_decoder_select="mdct"
2526 opus_decoder_deps="swresample"
2527 opus_decoder_select="mdct15"
2528 opus_encoder_select="audio_frame_queue mdct15"
2529 png_decoder_select="zlib"
2530 png_encoder_select="llvidencdsp zlib"
2531 prores_decoder_select="blockdsp idctdsp"
2532 prores_encoder_select="fdctdsp"
2533 qcelp_decoder_select="lsp"
2534 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2535 ra_144_decoder_select="audiodsp"
2536 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2537 ralf_decoder_select="golomb"
2538 rawvideo_decoder_select="bswapdsp"
2539 rscc_decoder_select="zlib"
2540 rtjpeg_decoder_select="me_cmp"
2541 rv10_decoder_select="h263_decoder"
2542 rv10_encoder_select="h263_encoder"
2543 rv20_decoder_select="h263_decoder"
2544 rv20_encoder_select="h263_encoder"
2545 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2546 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2547 screenpresso_decoder_select="zlib"
2548 shorten_decoder_select="bswapdsp"
2549 sipr_decoder_select="lsp"
2550 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2551 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2552 sonic_decoder_select="golomb rangecoder"
2553 sonic_encoder_select="golomb rangecoder"
2554 sonic_ls_encoder_select="golomb rangecoder"
2555 sp5x_decoder_select="mjpeg_decoder"
2556 srgc_decoder_select="zlib"
2557 svq1_decoder_select="hpeldsp"
2558 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2559 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2560 svq3_decoder_suggest="zlib"
2561 tak_decoder_select="audiodsp"
2562 tdsc_decoder_select="zlib mjpeg_decoder"
2563 theora_decoder_select="vp3_decoder"
2564 thp_decoder_select="mjpeg_decoder"
2565 tiff_decoder_suggest="zlib lzma"
2566 tiff_encoder_suggest="zlib"
2567 truehd_decoder_select="mlp_parser"
2568 truehd_encoder_select="lpc"
2569 truemotion2_decoder_select="bswapdsp"
2570 truespeech_decoder_select="bswapdsp"
2571 tscc_decoder_select="zlib"
2572 twinvq_decoder_select="mdct lsp sinewin"
2573 txd_decoder_select="texturedsp"
2574 utvideo_decoder_select="bswapdsp llviddsp"
2575 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2576 vble_decoder_select="llviddsp"
2577 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2578 vc1_qsv_decoder_deps="libmfx"
2579 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2580 vc1image_decoder_select="vc1_decoder"
2581 vorbis_decoder_select="mdct"
2582 vorbis_encoder_select="mdct"
2583 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2584 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2585 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2586 vp6a_decoder_select="vp6_decoder"
2587 vp6f_decoder_select="vp6_decoder"
2588 vp7_decoder_select="h264pred videodsp vp8dsp"
2589 vp8_decoder_select="h264pred videodsp vp8dsp"
2590 vp9_decoder_select="videodsp vp9_parser"
2591 webp_decoder_select="vp8_decoder exif"
2592 wmalossless_decoder_select="llauddsp"
2593 wmapro_decoder_select="mdct sinewin wma_freqs"
2594 wmav1_decoder_select="mdct sinewin wma_freqs"
2595 wmav1_encoder_select="mdct sinewin wma_freqs"
2596 wmav2_decoder_select="mdct sinewin wma_freqs"
2597 wmav2_encoder_select="mdct sinewin wma_freqs"
2598 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2599 wmv1_decoder_select="h263_decoder"
2600 wmv1_encoder_select="h263_encoder"
2601 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2602 wmv2_encoder_select="h263_encoder wmv2dsp"
2603 wmv3_decoder_select="vc1_decoder"
2604 wmv3image_decoder_select="wmv3_decoder"
2605 xma1_decoder_select="wmapro_decoder"
2606 xma2_decoder_select="wmapro_decoder"
2607 zerocodec_decoder_select="zlib"
2608 zlib_decoder_select="zlib"
2609 zlib_encoder_select="zlib"
2610 zmbv_decoder_select="zlib"
2611 zmbv_encoder_select="zlib"
2612
2613 # hardware accelerators
2614 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2615 cuda_deps_any="dlopen LoadLibrary"
2616 cuvid_deps="cuda"
2617 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2618 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2619 dxva2_extralibs="-luser32"
2620 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2621 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2622 vda_deps="vda_framework pthreads"
2623 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2624 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2625 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2626 xvmc_deps="X11_extensions_XvMClib_h"
2627
2628 h263_vaapi_hwaccel_deps="vaapi"
2629 h263_vaapi_hwaccel_select="h263_decoder"
2630 h263_videotoolbox_hwaccel_deps="videotoolbox"
2631 h263_videotoolbox_hwaccel_select="h263_decoder"
2632 h264_cuvid_hwaccel_deps="cuda cuvid"
2633 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2634 h264_d3d11va_hwaccel_deps="d3d11va"
2635 h264_d3d11va_hwaccel_select="h264_decoder"
2636 h264_d3d11va2_hwaccel_deps="d3d11va"
2637 h264_d3d11va2_hwaccel_select="h264_decoder"
2638 h264_dxva2_hwaccel_deps="dxva2"
2639 h264_dxva2_hwaccel_select="h264_decoder"
2640 h264_mediacodec_hwaccel_deps="mediacodec"
2641 h264_mmal_hwaccel_deps="mmal"
2642 h264_qsv_hwaccel_deps="libmfx"
2643 h264_vaapi_hwaccel_deps="vaapi"
2644 h264_vaapi_hwaccel_select="h264_decoder"
2645 h264_vda_hwaccel_deps="vda"
2646 h264_vda_hwaccel_select="h264_decoder"
2647 h264_vda_old_hwaccel_deps="vda"
2648 h264_vda_old_hwaccel_select="h264_decoder"
2649 h264_vdpau_hwaccel_deps="vdpau"
2650 h264_vdpau_hwaccel_select="h264_decoder"
2651 h264_videotoolbox_hwaccel_deps="videotoolbox"
2652 h264_videotoolbox_hwaccel_select="h264_decoder"
2653 hevc_cuvid_hwaccel_deps="cuda cuvid"
2654 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2655 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2656 hevc_d3d11va_hwaccel_select="hevc_decoder"
2657 hevc_mediacodec_hwaccel_deps="mediacodec"
2658 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2659 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2660 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2661 hevc_dxva2_hwaccel_select="hevc_decoder"
2662 hevc_qsv_hwaccel_deps="libmfx"
2663 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2664 hevc_vaapi_hwaccel_select="hevc_decoder"
2665 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2666 hevc_vdpau_hwaccel_select="hevc_decoder"
2667 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2668 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2669 mpeg_xvmc_hwaccel_deps="xvmc"
2670 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2671 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2672 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2673 mpeg1_vdpau_hwaccel_deps="vdpau"
2674 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2675 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2676 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2677 mpeg1_xvmc_hwaccel_deps="xvmc"
2678 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2679 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2680 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2681 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2682 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2683 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2684 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2685 mpeg2_dxva2_hwaccel_deps="dxva2"
2686 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2687 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2688 mpeg2_mmal_hwaccel_deps="mmal"
2689 mpeg2_qsv_hwaccel_deps="libmfx"
2690 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2691 mpeg2_vaapi_hwaccel_deps="vaapi"
2692 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2693 mpeg2_vdpau_hwaccel_deps="vdpau"
2694 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2695 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2696 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2697 mpeg2_xvmc_hwaccel_deps="xvmc"
2698 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2699 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2700 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2701 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2702 mpeg4_mmal_hwaccel_deps="mmal"
2703 mpeg4_vaapi_hwaccel_deps="vaapi"
2704 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2705 mpeg4_vdpau_hwaccel_deps="vdpau"
2706 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2707 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2708 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2709 vc1_cuvid_hwaccel_deps="cuda cuvid"
2710 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2711 vc1_d3d11va_hwaccel_deps="d3d11va"
2712 vc1_d3d11va_hwaccel_select="vc1_decoder"
2713 vc1_d3d11va2_hwaccel_deps="d3d11va"
2714 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2715 vc1_dxva2_hwaccel_deps="dxva2"
2716 vc1_dxva2_hwaccel_select="vc1_decoder"
2717 vc1_mmal_hwaccel_deps="mmal"
2718 vc1_qsv_hwaccel_deps="libmfx"
2719 vc1_qsv_hwaccel_select="qsvdec_vc1"
2720 vc1_vaapi_hwaccel_deps="vaapi"
2721 vc1_vaapi_hwaccel_select="vc1_decoder"
2722 vc1_vdpau_hwaccel_deps="vdpau"
2723 vc1_vdpau_hwaccel_select="vc1_decoder"
2724 vp8_cuvid_hwaccel_deps="cuda cuvid"
2725 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2726 vp9_cuvid_hwaccel_deps="cuda cuvid"
2727 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2728 vp8_mediacodec_hwaccel_deps="mediacodec"
2729 vp8_qsv_hwaccel_deps="libmfx"
2730 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2731 vp9_d3d11va_hwaccel_select="vp9_decoder"
2732 vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2733 vp9_d3d11va2_hwaccel_select="vp9_decoder"
2734 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2735 vp9_dxva2_hwaccel_select="vp9_decoder"
2736 vp9_mediacodec_hwaccel_deps="mediacodec"
2737 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2738 vp9_vaapi_hwaccel_select="vp9_decoder"
2739 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2740 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2741 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2742 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2743 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2744
2745 # hardware-accelerated codecs
2746 omx_deps="dlopen pthreads"
2747 omx_extralibs='$ldl'
2748 omx_rpi_select="omx"
2749 qsvdec_select="qsv"
2750 qsvenc_select="qsv"
2751 vaapi_encode_deps="vaapi"
2752
2753 hwupload_cuda_filter_deps="cuda"
2754 scale_npp_filter_deps="cuda libnpp"
2755 scale_cuda_filter_deps="cuda_sdk"
2756
2757 nvenc_deps="cuda"
2758 nvenc_deps_any="dlopen LoadLibrary"
2759 nvenc_encoder_deps="nvenc"
2760
2761 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2762 h264_cuvid_decoder_deps="cuda cuvid"
2763 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2764 h264_mediacodec_decoder_deps="mediacodec"
2765 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2766 h264_mmal_decoder_deps="mmal"
2767 h264_nvenc_encoder_deps="nvenc"
2768 h264_omx_encoder_deps="omx"
2769 h264_qsv_decoder_deps="libmfx"
2770 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2771 h264_qsv_encoder_deps="libmfx"
2772 h264_qsv_encoder_select="qsvenc"
2773 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2774 h264_vaapi_encoder_select="vaapi_encode golomb"
2775 h264_vda_decoder_deps="vda"
2776 h264_vda_decoder_select="h264_decoder"
2777 h264_vdpau_decoder_deps="vdpau"
2778 h264_vdpau_decoder_select="h264_decoder"
2779 hevc_cuvid_decoder_deps="cuda cuvid"
2780 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2781 hevc_mediacodec_decoder_deps="mediacodec"
2782 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2783 hevc_nvenc_encoder_deps="nvenc"
2784 hevc_qsv_decoder_deps="libmfx"
2785 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2786 hevc_qsv_encoder_deps="libmfx"
2787 hevc_qsv_encoder_select="hevcparse qsvenc"
2788 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2789 hevc_vaapi_encoder_select="vaapi_encode golomb"
2790 mjpeg_cuvid_decoder_deps="cuda cuvid"
2791 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2792 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2793 mpeg1_cuvid_decoder_deps="cuda cuvid"
2794 mpeg1_vdpau_decoder_deps="vdpau"
2795 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2796 mpeg2_crystalhd_decoder_select="crystalhd"
2797 mpeg2_cuvid_decoder_deps="cuda cuvid"
2798 mpeg2_mmal_decoder_deps="mmal"
2799 mpeg2_mediacodec_decoder_deps="mediacodec"
2800 mpeg2_qsv_decoder_deps="libmfx"
2801 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2802 mpeg2_qsv_encoder_deps="libmfx"
2803 mpeg2_qsv_encoder_select="qsvenc"
2804 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2805 mpeg2_vaapi_encoder_select="vaapi_encode"
2806 mpeg4_crystalhd_decoder_select="crystalhd"
2807 mpeg4_cuvid_decoder_deps="cuda cuvid"
2808 mpeg4_mediacodec_decoder_deps="mediacodec"
2809 mpeg4_mmal_decoder_deps="mmal"
2810 mpeg4_omx_encoder_deps="omx"
2811 mpeg4_vdpau_decoder_deps="vdpau"
2812 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2813 mpeg_vdpau_decoder_deps="vdpau"
2814 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2815 msmpeg4_crystalhd_decoder_select="crystalhd"
2816 nvenc_h264_encoder_select="h264_nvenc_encoder"
2817 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2818 vc1_crystalhd_decoder_select="crystalhd"
2819 vc1_cuvid_decoder_deps="cuda cuvid"
2820 vc1_mmal_decoder_deps="mmal"
2821 vc1_vdpau_decoder_deps="vdpau"
2822 vc1_vdpau_decoder_select="vc1_decoder"
2823 vp8_cuvid_decoder_deps="cuda cuvid"
2824 vp8_mediacodec_decoder_deps="mediacodec"
2825 vp8_qsv_decoder_deps="libmfx"
2826 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2827 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2828 vp8_vaapi_encoder_select="vaapi_encode"
2829 vp9_cuvid_decoder_deps="cuda cuvid"
2830 vp9_mediacodec_decoder_deps="mediacodec"
2831 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2832 vp9_vaapi_encoder_select="vaapi_encode"
2833 wmv3_crystalhd_decoder_select="crystalhd"
2834 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2835
2836 # parsers
2837 h264_parser_select="golomb h264dsp h264parse"
2838 hevc_parser_select="hevcparse"
2839 mpegaudio_parser_select="mpegaudioheader"
2840 mpegvideo_parser_select="mpegvideo"
2841 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2842 vc1_parser_select="vc1dsp"
2843
2844 # bitstream_filters
2845 mjpeg2jpeg_bsf_select="jpegtables"
2846
2847 # external libraries
2848 aac_at_decoder_deps="audiotoolbox"
2849 ac3_at_decoder_deps="audiotoolbox"
2850 ac3_at_decoder_select="ac3_parser"
2851 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2852 alac_at_decoder_deps="audiotoolbox"
2853 amr_nb_at_decoder_deps="audiotoolbox"
2854 avisynth_deps_any="dlopen LoadLibrary"
2855 avisynth_demuxer_deps="avisynth"
2856 avisynth_demuxer_select="riffdec"
2857 eac3_at_decoder_deps="audiotoolbox"
2858 eac3_at_decoder_select="ac3_parser"
2859 gsm_ms_at_decoder_deps="audiotoolbox"
2860 ilbc_at_decoder_deps="audiotoolbox"
2861 mp1_at_decoder_deps="audiotoolbox"
2862 mp2_at_decoder_deps="audiotoolbox"
2863 mp3_at_decoder_deps="audiotoolbox"
2864 mp1_at_decoder_select="mpegaudioheader"
2865 mp2_at_decoder_select="mpegaudioheader"
2866 mp3_at_decoder_select="mpegaudioheader"
2867 pcm_alaw_at_decoder_deps="audiotoolbox"
2868 pcm_mulaw_at_decoder_deps="audiotoolbox"
2869 qdmc_at_decoder_deps="audiotoolbox"
2870 qdm2_at_decoder_deps="audiotoolbox"
2871 aac_at_encoder_deps="audiotoolbox"
2872 aac_at_encoder_select="audio_frame_queue"
2873 alac_at_encoder_deps="audiotoolbox"
2874 alac_at_encoder_select="audio_frame_queue"
2875 ilbc_at_encoder_deps="audiotoolbox"
2876 ilbc_at_encoder_select="audio_frame_queue"
2877 pcm_alaw_at_encoder_deps="audiotoolbox"
2878 pcm_alaw_at_encoder_select="audio_frame_queue"
2879 pcm_mulaw_at_encoder_deps="audiotoolbox"
2880 pcm_mulaw_at_encoder_select="audio_frame_queue"
2881 chromaprint_muxer_deps="chromaprint"
2882 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2883 libcelt_decoder_deps="libcelt"
2884 libfdk_aac_decoder_deps="libfdk_aac"
2885 libfdk_aac_encoder_deps="libfdk_aac"
2886 libfdk_aac_encoder_select="audio_frame_queue"
2887 libgme_demuxer_deps="libgme"
2888 libgsm_decoder_deps="libgsm"
2889 libgsm_encoder_deps="libgsm"
2890 libgsm_ms_decoder_deps="libgsm"
2891 libgsm_ms_encoder_deps="libgsm"
2892 libilbc_decoder_deps="libilbc"
2893 libilbc_encoder_deps="libilbc"
2894 libkvazaar_encoder_deps="libkvazaar"
2895 libmodplug_demuxer_deps="libmodplug"
2896 libmp3lame_encoder_deps="libmp3lame"
2897 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2898 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2899 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2900 libopencore_amrnb_encoder_select="audio_frame_queue"
2901 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2902 libopenh264_decoder_deps="libopenh264"
2903 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2904 libopenh264_encoder_deps="libopenh264"
2905 libopenjpeg_decoder_deps="libopenjpeg"
2906 libopenjpeg_encoder_deps="libopenjpeg"
2907 libopenmpt_demuxer_deps="libopenmpt"
2908 libopus_decoder_deps="libopus"
2909 libopus_encoder_deps="libopus"
2910 libopus_encoder_select="audio_frame_queue"
2911 librsvg_decoder_deps="librsvg"
2912 libshine_encoder_deps="libshine"
2913 libshine_encoder_select="audio_frame_queue"
2914 libspeex_decoder_deps="libspeex"
2915 libspeex_encoder_deps="libspeex"
2916 libspeex_encoder_select="audio_frame_queue"
2917 libtheora_encoder_deps="libtheora"
2918 libtwolame_encoder_deps="libtwolame"
2919 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2920 libvorbis_decoder_deps="libvorbis"
2921 libvorbis_encoder_deps="libvorbis"
2922 libvorbis_encoder_select="audio_frame_queue"
2923 libvpx_vp8_decoder_deps="libvpx"
2924 libvpx_vp8_encoder_deps="libvpx"
2925 libvpx_vp9_decoder_deps="libvpx"
2926 libvpx_vp9_encoder_deps="libvpx"
2927 libwavpack_encoder_deps="libwavpack"
2928 libwavpack_encoder_select="audio_frame_queue"
2929 libwebp_encoder_deps="libwebp"
2930 libwebp_anim_encoder_deps="libwebp"
2931 libx262_encoder_deps="libx262"
2932 libx264_encoder_deps="libx264"
2933 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2934 libx264rgb_encoder_select="libx264_encoder"
2935 libx265_encoder_deps="libx265"
2936 libxavs_encoder_deps="libxavs"
2937 libxvid_encoder_deps="libxvid"
2938 libzvbi_teletext_decoder_deps="libzvbi"
2939 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2940 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2941 videotoolbox_encoder_suggest="vda_framework"
2942
2943 # demuxers / muxers
2944 ac3_demuxer_select="ac3_parser"
2945 aiff_muxer_select="iso_media"
2946 asf_demuxer_select="riffdec"
2947 asf_o_demuxer_select="riffdec"
2948 asf_muxer_select="riffenc"
2949 asf_stream_muxer_select="asf_muxer"
2950 avi_demuxer_select="iso_media riffdec exif"
2951 avi_muxer_select="riffenc"
2952 caf_demuxer_select="iso_media riffdec"
2953 caf_muxer_select="iso_media"
2954 dash_muxer_select="mp4_muxer"
2955 dirac_demuxer_select="dirac_parser"
2956 dts_demuxer_select="dca_parser"
2957 dtshd_demuxer_select="dca_parser"
2958 dv_demuxer_select="dvprofile"
2959 dv_muxer_select="dvprofile"
2960 dxa_demuxer_select="riffdec"
2961 eac3_demuxer_select="ac3_parser"
2962 f4v_muxer_select="mov_muxer"
2963 fifo_muxer_deps="threads"
2964 flac_demuxer_select="flac_parser"
2965 hds_muxer_select="flv_muxer"
2966 hls_muxer_select="mpegts_muxer"
2967 image2_alias_pix_demuxer_select="image2_demuxer"
2968 image2_brender_pix_demuxer_select="image2_demuxer"
2969 ipod_muxer_select="mov_muxer"
2970 ismv_muxer_select="mov_muxer"
2971 matroska_audio_muxer_select="matroska_muxer"
2972 matroska_demuxer_select="iso_media riffdec"
2973 matroska_demuxer_suggest="bzlib lzo zlib"
2974 matroska_muxer_select="iso_media riffenc"
2975 mmf_muxer_select="riffenc"
2976 mov_demuxer_select="iso_media riffdec"
2977 mov_demuxer_suggest="zlib"
2978 mov_muxer_select="iso_media riffenc rtpenc_chain"
2979 mp3_demuxer_select="mpegaudio_parser"
2980 mp3_muxer_select="mpegaudioheader"
2981 mp4_muxer_select="mov_muxer"
2982 mpegts_demuxer_select="iso_media"
2983 mpegts_muxer_select="adts_muxer latm_muxer"
2984 mpegtsraw_demuxer_select="mpegts_demuxer"
2985 mxf_d10_muxer_select="mxf_muxer"
2986 mxf_opatom_muxer_select="mxf_muxer"
2987 nut_muxer_select="riffenc"
2988 nuv_demuxer_select="riffdec"
2989 oga_muxer_select="ogg_muxer"
2990 ogg_demuxer_select="dirac_parse"
2991 ogv_muxer_select="ogg_muxer"
2992 opus_muxer_select="ogg_muxer"
2993 psp_muxer_select="mov_muxer"
2994 rtp_demuxer_select="sdp_demuxer"
2995 rtp_muxer_select="golomb"
2996 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2997 rtsp_demuxer_select="http_protocol rtpdec"
2998 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2999 sap_demuxer_select="sdp_demuxer"
3000 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
3001 sdp_demuxer_select="rtpdec"
3002 smoothstreaming_muxer_select="ismv_muxer"
3003 spdif_muxer_select="aac_parser"
3004 spx_muxer_select="ogg_muxer"
3005 swf_demuxer_suggest="zlib"
3006 tak_demuxer_select="tak_parser"
3007 tg2_muxer_select="mov_muxer"
3008 tgp_muxer_select="mov_muxer"
3009 vobsub_demuxer_select="mpegps_demuxer"
3010 w64_demuxer_select="wav_demuxer"
3011 w64_muxer_select="wav_muxer"
3012 wav_demuxer_select="riffdec"
3013 wav_muxer_select="riffenc"
3014 webm_muxer_select="iso_media riffenc"
3015 webm_dash_manifest_demuxer_select="matroska_demuxer"
3016 wtv_demuxer_select="mpegts_demuxer riffdec"
3017 wtv_muxer_select="mpegts_muxer riffenc"
3018 xmv_demuxer_select="riffdec"
3019 xwma_demuxer_select="riffdec"
3020
3021 # indevs / outdevs
3022 alsa_indev_deps="alsa"
3023 alsa_outdev_deps="alsa"
3024 avfoundation_indev_deps="avfoundation pthreads"
3025 avfoundation_indev_extralibs="-framework Foundation -framework CoreVideo -framework CoreMedia"
3026 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3027 caca_outdev_deps="libcaca"
3028 decklink_indev_deps="decklink threads"
3029 decklink_indev_extralibs="-lstdc++"
3030 decklink_outdev_deps="decklink threads"
3031 decklink_outdev_extralibs="-lstdc++"
3032 libndi_newtek_indev_deps="libndi_newtek"
3033 libndi_newtek_indev_extralibs="-lndi"
3034 libndi_newtek_outdev_deps="libndi_newtek"
3035 libndi_newtek_outdev_extralibs="-lndi"
3036 dshow_indev_deps="IBaseFilter"
3037 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3038 dv1394_indev_deps="dv1394"
3039 dv1394_indev_select="dv_demuxer"
3040 fbdev_indev_deps="linux_fb_h"
3041 fbdev_outdev_deps="linux_fb_h"
3042 gdigrab_indev_deps="CreateDIBSection"
3043 gdigrab_indev_extralibs="-lgdi32"
3044 gdigrab_indev_select="bmp_decoder"
3045 iec61883_indev_deps="libiec61883"
3046 jack_indev_deps="jack"
3047 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3048 lavfi_indev_deps="avfilter"
3049 libcdio_indev_deps="libcdio"
3050 libdc1394_indev_deps="libdc1394"
3051 libv4l2_indev_deps="libv4l2"
3052 openal_indev_deps="openal"
3053 opengl_outdev_deps="opengl"
3054 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3055 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3056 pulse_indev_deps="libpulse"
3057 pulse_outdev_deps="libpulse"
3058 sdl2_outdev_deps="sdl2"
3059 sndio_indev_deps="sndio"
3060 sndio_outdev_deps="sndio"
3061 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3062 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3063 vfwcap_indev_deps="vfw32 vfwcap_defines"
3064 xcbgrab_indev_deps="libxcb"
3065 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3066 xv_outdev_extralibs="-lXv -lX11 -lXext"
3067
3068 # protocols
3069 async_protocol_deps="threads"
3070 bluray_protocol_deps="libbluray"
3071 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3072 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3073 ffrtmpcrypt_protocol_select="tcp_protocol"
3074 ffrtmphttp_protocol_deps="!librtmp_protocol"
3075 ffrtmphttp_protocol_select="http_protocol"
3076 ftp_protocol_select="tcp_protocol"
3077 gopher_protocol_select="network"
3078 http_protocol_select="tcp_protocol"
3079 httpproxy_protocol_select="tcp_protocol"
3080 https_protocol_select="tls_protocol"
3081 icecast_protocol_select="http_protocol"
3082 librtmp_protocol_deps="librtmp"
3083 librtmpe_protocol_deps="librtmp"
3084 librtmps_protocol_deps="librtmp"
3085 librtmpt_protocol_deps="librtmp"
3086 librtmpte_protocol_deps="librtmp"
3087 libsmbclient_protocol_deps="libsmbclient gplv3"
3088 libssh_protocol_deps="libssh"
3089 mmsh_protocol_select="http_protocol"
3090 mmst_protocol_select="network"
3091 rtmp_protocol_deps="!librtmp_protocol"
3092 rtmp_protocol_select="tcp_protocol"
3093 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3094 rtmps_protocol_deps="!librtmp_protocol"
3095 rtmps_protocol_select="tls_protocol"
3096 rtmpt_protocol_select="ffrtmphttp_protocol"
3097 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3098 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3099 rtp_protocol_select="udp_protocol"
3100 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3101 sctp_protocol_select="network"
3102 srtp_protocol_select="rtp_protocol srtp"
3103 tcp_protocol_select="network"
3104 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3105 tls_gnutls_protocol_select="tcp_protocol"
3106 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3107 tls_openssl_protocol_select="tcp_protocol"
3108 tls_schannel_protocol_deps="schannel"
3109 tls_schannel_protocol_select="tcp_protocol"
3110 tls_securetransport_protocol_deps="securetransport"
3111 tls_securetransport_protocol_select="tcp_protocol"
3112 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3113 udp_protocol_select="network"
3114 udplite_protocol_select="network"
3115 unix_protocol_deps="sys_un_h"
3116 unix_protocol_select="network"
3117
3118 # filters
3119 afftfilt_filter_deps="avcodec"
3120 afftfilt_filter_select="fft"
3121 afir_filter_deps="avcodec"
3122 afir_filter_select="fft"
3123 amovie_filter_deps="avcodec avformat"
3124 aresample_filter_deps="swresample"
3125 ass_filter_deps="libass"
3126 atempo_filter_deps="avcodec"
3127 atempo_filter_select="rdft"
3128 azmq_filter_deps="libzmq"
3129 blackframe_filter_deps="gpl"
3130 boxblur_filter_deps="gpl"
3131 bs2b_filter_deps="libbs2b"
3132 colormatrix_filter_deps="gpl"
3133 coreimage_filter_deps="coreimage"
3134 coreimage_filter_extralibs="-framework OpenGL -framework AppKit"
3135 coreimagesrc_filter_deps="coreimage"
3136 coreimagesrc_filter_extralibs="-framework OpenGL -framework AppKit"
3137 cover_rect_filter_deps="avcodec avformat gpl"
3138 cropdetect_filter_deps="gpl"
3139 deinterlace_qsv_filter_deps="libmfx"
3140 deinterlace_vaapi_filter_deps="vaapi"
3141 delogo_filter_deps="gpl"
3142 deshake_filter_select="pixelutils"
3143 drawtext_filter_deps="libfreetype"
3144 elbg_filter_deps="avcodec"
3145 eq_filter_deps="gpl"
3146 fftfilt_filter_deps="avcodec"
3147 fftfilt_filter_select="rdft"
3148 find_rect_filter_deps="avcodec avformat gpl"
3149 firequalizer_filter_deps="avcodec"
3150 firequalizer_filter_select="rdft"
3151 flite_filter_deps="libflite"
3152 framerate_filter_select="pixelutils"
3153 frei0r_filter_deps="frei0r dlopen"
3154 frei0r_src_filter_deps="frei0r dlopen"
3155 fspp_filter_deps="gpl"
3156 geq_filter_deps="gpl"
3157 histeq_filter_deps="gpl"
3158 hqdn3d_filter_deps="gpl"
3159 interlace_filter_deps="gpl"
3160 kerndeint_filter_deps="gpl"
3161 ladspa_filter_deps="ladspa dlopen"
3162 mcdeint_filter_deps="avcodec gpl"
3163 movie_filter_deps="avcodec avformat"
3164 mpdecimate_filter_deps="gpl"
3165 mpdecimate_filter_select="pixelutils"
3166 mptestsrc_filter_deps="gpl"
3167 negate_filter_deps="lut_filter"
3168 nnedi_filter_deps="gpl"
3169 ocr_filter_deps="libtesseract"
3170 ocv_filter_deps="libopencv"
3171 owdenoise_filter_deps="gpl"
3172 pan_filter_deps="swresample"
3173 perspective_filter_deps="gpl"
3174 phase_filter_deps="gpl"
3175 pp7_filter_deps="gpl"
3176 pp_filter_deps="gpl postproc"
3177 pullup_filter_deps="gpl"
3178 removelogo_filter_deps="avcodec avformat swscale"
3179 repeatfields_filter_deps="gpl"
3180 resample_filter_deps="avresample"
3181 rubberband_filter_deps="librubberband"
3182 sab_filter_deps="gpl swscale"
3183 scale2ref_filter_deps="swscale"
3184 scale_filter_deps="swscale"
3185 scale_qsv_filter_deps="libmfx"
3186 select_filter_select="pixelutils"
3187 showcqt_filter_deps="avcodec avformat swscale"
3188 showcqt_filter_select="fft"
3189 showfreqs_filter_deps="avcodec"
3190 showfreqs_filter_select="fft"
3191 showspectrum_filter_deps="avcodec"
3192 showspectrum_filter_select="fft"
3193 showspectrumpic_filter_deps="avcodec"
3194 showspectrumpic_filter_select="fft"
3195 signature_filter_deps="gpl avcodec avformat"
3196 smartblur_filter_deps="gpl swscale"
3197 sofalizer_filter_deps="libmysofa avcodec"
3198 sofalizer_filter_select="fft"
3199 spectrumsynth_filter_deps="avcodec"
3200 spectrumsynth_filter_select="fft"
3201 spp_filter_deps="gpl avcodec"
3202 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3203 stereo3d_filter_deps="gpl"
3204 subtitles_filter_deps="avformat avcodec libass"
3205 super2xsai_filter_deps="gpl"
3206 pixfmts_super2xsai_test_deps="super2xsai_filter"
3207 tinterlace_filter_deps="gpl"
3208 tinterlace_merge_test_deps="tinterlace_filter"
3209 tinterlace_pad_test_deps="tinterlace_filter"
3210 uspp_filter_deps="gpl avcodec"
3211 vaguedenoiser_filter_deps="gpl"
3212 vidstabdetect_filter_deps="libvidstab"
3213 vidstabtransform_filter_deps="libvidstab"
3214 libvmaf_filter_deps="libvmaf"
3215 zmq_filter_deps="libzmq"
3216 zoompan_filter_deps="swscale"
3217 zscale_filter_deps="libzimg"
3218 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3219
3220 # examples
3221 avio_dir_cmd_deps="avformat avutil"
3222 avio_reading_deps="avformat avcodec avutil"
3223 decode_audio_example_deps="avcodec avutil"
3224 decode_video_example_deps="avcodec avutil"
3225 demuxing_decoding_example_deps="avcodec avformat avutil"
3226 encode_audio_example_deps="avcodec avutil"
3227 encode_video_example_deps="avcodec avutil"
3228 extract_mvs_example_deps="avcodec avformat avutil"
3229 filter_audio_example_deps="avfilter avutil"
3230 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3231 filtering_video_example_deps="avfilter avcodec avformat avutil"
3232 http_multiclient_example_deps="avformat avutil fork"
3233 hw_decode_example_deps="avcodec avformat avutil"
3234 metadata_example_deps="avformat avutil"
3235 muxing_example_deps="avcodec avformat avutil swscale"
3236 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3237 remuxing_example_deps="avcodec avformat avutil"
3238 resampling_audio_example_deps="avutil swresample"
3239 scaling_video_example_deps="avutil swscale"
3240 transcode_aac_example_deps="avcodec avformat swresample"
3241 transcoding_example_deps="avfilter avcodec avformat avutil"
3242
3243 # libraries, in linking order
3244 avcodec_deps="avutil"
3245 avcodec_select="null_bsf"
3246 avdevice_deps="avformat avcodec avutil"
3247 avfilter_deps="avutil"
3248 avformat_deps="avcodec avutil"
3249 avresample_deps="avutil"
3250 postproc_deps="avutil gpl"
3251 swresample_deps="avutil"
3252 swscale_deps="avutil"
3253
3254 # programs
3255 ffmpeg_deps="avcodec avfilter avformat swresample"
3256 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3257                null_filter
3258                trim_filter"
3259 ffplay_deps="avcodec avformat swscale swresample sdl2"
3260 ffplay_extralibs='$sdl2_extralibs'
3261 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3262 ffprobe_deps="avcodec avformat"
3263 ffserver_deps="avformat fork sarestart"
3264 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3265
3266 # documentation
3267 podpages_deps="perl"
3268 manpages_deps="perl pod2man"
3269 htmlpages_deps="perl"
3270 htmlpages_deps_any="makeinfo_html texi2html"
3271 txtpages_deps="perl makeinfo"
3272 doc_deps_any="manpages htmlpages podpages txtpages"
3273
3274 # default parameters
3275
3276 logfile="ffbuild/config.log"
3277
3278 # installation paths
3279 prefix_default="/usr/local"
3280 bindir_default='${prefix}/bin'
3281 datadir_default='${prefix}/share/ffmpeg'
3282 docdir_default='${prefix}/share/doc/ffmpeg'
3283 incdir_default='${prefix}/include'
3284 libdir_default='${prefix}/lib'
3285 mandir_default='${prefix}/share/man'
3286
3287 # toolchain
3288 ar_default="ar"
3289 cc_default="gcc"
3290 cxx_default="g++"
3291 host_cc_default="gcc"
3292 doxygen_default="doxygen"
3293 install="install"
3294 ln_s_default="ln -s -f"
3295 nm_default="nm -g"
3296 pkg_config_default=pkg-config
3297 ranlib_default="ranlib"
3298 strip_default="strip"
3299 version_script='--version-script'
3300 x86asmexe_default="nasm"
3301 windres_default="windres"
3302 nvcc_default="nvcc"
3303 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3304
3305 # OS
3306 target_os_default=$(tolower $(uname -s))
3307 host_os=$target_os_default
3308
3309 # machine
3310 if test "$target_os_default" = aix; then
3311     arch_default=$(uname -p)
3312     strip_default="strip -X32_64"
3313 else
3314     arch_default=$(uname -m)
3315 fi
3316 cpu="generic"
3317 intrinsics="none"
3318
3319 # configurable options
3320 enable $PROGRAM_LIST
3321 enable $DOCUMENT_LIST
3322 enable $EXAMPLE_LIST
3323 enable $(filter_out avresample $LIBRARY_LIST)
3324 enable stripping
3325
3326 enable asm
3327 enable debug
3328 enable doc
3329 enable faan faandct faanidct
3330 enable optimizations
3331 enable runtime_cpudetect
3332 enable safe_bitstream_reader
3333 enable static
3334 enable swscale_alpha
3335 enable valgrind_backtrace
3336
3337 sws_max_filter_size_default=256
3338 set_default sws_max_filter_size
3339
3340 # build settings
3341 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3342 LIBPREF="lib"
3343 LIBSUF=".a"
3344 FULLNAME='$(NAME)$(BUILDSUF)'
3345 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3346 SLIBPREF="lib"
3347 SLIBSUF=".so"
3348 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3349 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3350 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3351 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3352 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3353 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3354 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3355
3356 asflags_filter=echo
3357 cflags_filter=echo
3358 ldflags_filter=echo
3359
3360 AS_C='-c'
3361 AS_O='-o $@'
3362 CC_C='-c'
3363 CC_E='-E -o $@'
3364 CC_O='-o $@'
3365 CXX_C='-c'
3366 CXX_O='-o $@'
3367 OBJCC_C='-c'
3368 OBJCC_E='-E -o $@'
3369 OBJCC_O='-o $@'
3370 X86ASM_O='-o $@'
3371 LD_O='-o $@'
3372 LD_LIB='-l%'
3373 LD_PATH='-L'
3374 HOSTCC_C='-c'
3375 HOSTCC_E='-E -o $@'
3376 HOSTCC_O='-o $@'
3377 HOSTLD_O='-o $@'
3378 NVCC_C='-c'
3379 NVCC_O='-o $@'
3380
3381 host_extralibs='-lm'
3382 host_cflags_filter=echo
3383 host_ldflags_filter=echo
3384
3385 target_path='$(CURDIR)'
3386
3387 # since the object filename is not given with the -MM flag, the compiler
3388 # is only able to print the basename, and we must add the path ourselves
3389 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3390 DEPFLAGS='-MM'
3391
3392 mkdir -p ffbuild
3393
3394 # find source path
3395 if test -f configure; then
3396     source_path=.
3397 else
3398     source_path=$(cd $(dirname "$0"); pwd)
3399     case "$source_path" in
3400         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3401     esac
3402     test -e "$source_path/config.h" &&
3403         die "Out of tree builds are impossible with config.h in source dir."
3404 fi
3405
3406 for v in "$@"; do
3407     r=${v#*=}
3408     l=${v%"$r"}
3409     r=$(sh_quote "$r")
3410     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3411 done
3412
3413 find_things(){
3414     thing=$1
3415     pattern=$2
3416     file=$source_path/$3
3417     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3418 }
3419
3420 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3421 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3422 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3423 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3424 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3425 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3426 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3427 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3428 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3429
3430 find_things_extern(){
3431     thing=$1
3432     pattern=$2
3433     file=$source_path/$3
3434     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3435 }
3436
3437 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3438 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3439
3440 ALL_COMPONENTS="
3441     $BSF_LIST
3442     $DECODER_LIST
3443     $DEMUXER_LIST
3444     $ENCODER_LIST
3445     $FILTER_LIST
3446     $HWACCEL_LIST
3447     $INDEV_LIST
3448     $MUXER_LIST
3449     $OUTDEV_LIST
3450     $PARSER_LIST
3451     $PROTOCOL_LIST
3452 "
3453
3454 for n in $COMPONENT_LIST; do
3455     v=$(toupper ${n%s})_LIST
3456     eval enable \$$v
3457     eval ${n}_if_any="\$$v"
3458 done
3459
3460 enable $ARCH_EXT_LIST
3461
3462 die_unknown(){
3463     echo "Unknown option \"$1\"."
3464     echo "See $0 --help for available options."
3465     exit 1
3466 }
3467
3468 print_in_columns() {
3469     cols=$(expr $ncols / 24)
3470     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3471 }
3472
3473 show_list() {
3474     suffix=_$1
3475     shift
3476     echo $* | sed s/$suffix//g | print_in_columns
3477     exit 0
3478 }
3479
3480 rand_list(){
3481     IFS=', '
3482     set -- $*
3483     unset IFS
3484     for thing; do
3485         comp=${thing%:*}
3486         prob=${thing#$comp}
3487         prob=${prob#:}
3488         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3489         echo "prob ${prob:-0.5}"
3490         printf '%s\n' $comp
3491     done
3492 }
3493
3494 do_random(){
3495     action=$1
3496     shift
3497     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3498     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3499 }
3500
3501 for opt do
3502     optval="${opt#*=}"
3503     case "$opt" in
3504         --extra-ldflags=*)
3505             add_ldflags $optval
3506         ;;
3507         --extra-ldexeflags=*)
3508             add_ldexeflags $optval
3509         ;;
3510         --extra-ldlibflags=*)
3511             add_ldlibflags $optval
3512         ;;
3513         --extra-libs=*)
3514             add_extralibs $optval
3515         ;;
3516         --disable-devices)
3517             disable $INDEV_LIST $OUTDEV_LIST
3518         ;;
3519         --enable-debug=*)
3520             debuglevel="$optval"
3521         ;;
3522         --disable-programs)
3523             disable $PROGRAM_LIST
3524         ;;
3525         --disable-everything)
3526             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3527         ;;
3528         --disable-all)
3529             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3530             disable $LIBRARY_LIST $PROGRAM_LIST doc
3531             enable avutil
3532         ;;
3533         --enable-random|--disable-random)
3534             action=${opt%%-random}
3535             do_random ${action#--} $COMPONENT_LIST
3536         ;;
3537         --enable-random=*|--disable-random=*)
3538             action=${opt%%-random=*}
3539             do_random ${action#--} $optval
3540         ;;
3541         --enable-sdl)
3542             enable sdl2
3543         ;;
3544         --enable-*=*|--disable-*=*)
3545             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3546             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3547             eval list=\$$(toupper $thing)_LIST
3548             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3549             list=$(filter "$name" $list)
3550             [ "$list" = "" ] && warn "Option $opt did not match anything"
3551             $action $list
3552         ;;
3553         --enable-yasm|--disable-yasm)
3554             warn "The ${opt} option is only provided for compatibility and will be\n"\
3555                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3556             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3557         ;;
3558         --yasmexe=*)
3559             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3560                  "removed in the future. Use --x86asmexe instead."
3561             x86asmexe="$optval"
3562         ;;
3563         --enable-?*|--disable-?*)
3564             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3565             if is_in $option $COMPONENT_LIST; then
3566                 test $action = disable && action=unset
3567                 eval $action \$$(toupper ${option%s})_LIST
3568             elif is_in $option $CMDLINE_SELECT; then
3569                 $action $option
3570             else
3571                 die_unknown $opt
3572             fi
3573         ;;
3574         --list-*)
3575             NAME="${opt#--list-}"
3576             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3577             NAME=${NAME%s}
3578             eval show_list $NAME \$$(toupper $NAME)_LIST
3579         ;;
3580         --help|-h) show_help
3581         ;;
3582         --quiet|-q) quiet=yes
3583         ;;
3584         --fatal-warnings) enable fatal_warnings
3585         ;;
3586         --libfuzzer=*)
3587             libfuzzer_path="$optval"
3588         ;;
3589         *)
3590             optname="${opt%%=*}"
3591             optname="${optname#--}"
3592             optname=$(echo "$optname" | sed 's/-/_/g')
3593             if is_in $optname $CMDLINE_SET; then
3594                 eval $optname='$optval'
3595             elif is_in $optname $CMDLINE_APPEND; then
3596                 append $optname "$optval"
3597             else
3598                 die_unknown $opt
3599             fi
3600         ;;
3601     esac
3602 done
3603
3604 for e in $env; do
3605     eval "export $e"
3606 done
3607
3608 if disabled autodetect; then
3609
3610     # Unless iconv is explicitely disabled by the user, we still want to probe
3611     # for the iconv from the libc.
3612     disabled iconv || enable libc_iconv
3613
3614     disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3615     disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3616 fi
3617 # Mark specifically enabled, but normally autodetected libraries as requested.
3618 for lib in $AUTODETECT_LIBS; do
3619     enabled $lib && request $lib
3620 done
3621 #TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
3622 enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
3623 enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
3624
3625 disabled logging && logfile=/dev/null
3626
3627 die_license_disabled() {
3628     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3629 }
3630
3631 die_license_disabled_gpl() {
3632     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3633 }
3634
3635 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3636 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3637
3638 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3639 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3640
3641 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3642
3643 # Disable all the library-specific components if the library itself
3644 # is disabled, see AVCODEC_LIST and following _LIST variables.
3645
3646 disable_components(){
3647     disabled ${1} && disable $(
3648         eval components="\$$(toupper ${1})_COMPONENTS"
3649         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3650     )
3651 }
3652
3653 map 'disable_components $v' $LIBRARY_LIST
3654
3655 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3656 set >> $logfile
3657
3658 test -n "$valgrind" && toolchain="valgrind-memcheck"
3659
3660 enabled ossfuzz && {
3661     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3662     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3663 }
3664
3665 case "$toolchain" in
3666     *-asan)
3667         cc_default="${toolchain%-asan}"
3668         add_cflags  -fsanitize=address
3669         add_ldflags -fsanitize=address
3670     ;;
3671     *-msan)
3672         cc_default="${toolchain%-msan}"
3673         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3674         add_ldflags -fsanitize=memory
3675     ;;
3676     *-tsan)
3677         cc_default="${toolchain%-tsan}"
3678         add_cflags  -fsanitize=thread -fPIE
3679         add_ldflags -fsanitize=thread -pie
3680         case "$toolchain" in
3681             gcc-tsan)
3682                 add_cflags  -fPIC
3683                 add_ldflags -fPIC
3684                 ;;
3685         esac
3686     ;;
3687     *-usan)
3688         cc_default="${toolchain%-usan}"
3689         add_cflags  -fsanitize=undefined
3690         add_ldflags -fsanitize=undefined
3691     ;;
3692     valgrind-*)
3693         target_exec_default="valgrind"
3694         case "$toolchain" in
3695             valgrind-massif)
3696                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3697                 ;;
3698             valgrind-memcheck)
3699                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3700                 ;;
3701         esac
3702     ;;
3703     msvc)
3704         # Check whether the current MSVC version needs the C99 converter.
3705         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3706         # support enough of C99 to build ffmpeg. Default to the new
3707         # behaviour if the regexp was unable to match anything, since this
3708         # successfully parses the version number of existing supported
3709         # versions that require the converter (MSVC 2010 and 2012).
3710         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3711         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3712             cc_default="cl"
3713             cxx_default="cl"
3714         else
3715             cc_default="c99wrap cl"
3716             cxx_default="c99wrap cl"
3717         fi
3718         ld_default="$source_path/compat/windows/mslink"
3719         nm_default="dumpbin -symbols"
3720         ar_default="lib"
3721         case "$arch" in
3722         arm*)
3723             as_default="armasm"
3724             ;;
3725         esac
3726         target_os_default="win32"
3727         # Use a relative path for TMPDIR. This makes sure all the
3728         # ffconf temp files are written with a relative path, avoiding
3729         # issues with msys/win32 path conversion for MSVC parameters
3730         # such as -Fo<file> or -out:<file>.
3731         TMPDIR=.
3732     ;;
3733     icl)
3734         cc_default="icl"
3735         ld_default="xilink"
3736         nm_default="dumpbin -symbols"
3737         ar_default="xilib"
3738         target_os_default="win32"
3739         TMPDIR=.
3740     ;;
3741     gcov)
3742         add_cflags  -fprofile-arcs -ftest-coverage
3743         add_ldflags -fprofile-arcs -ftest-coverage
3744     ;;
3745     llvm-cov)
3746         add_cflags -fprofile-arcs -ftest-coverage
3747         add_ldflags --coverage
3748     ;;
3749     hardened)
3750         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3751         add_cflags   -fno-strict-overflow -fstack-protector-all
3752         add_ldflags  -Wl,-z,relro -Wl,-z,now
3753         add_cflags   -fPIE
3754         add_ldexeflags -fPIE -pie
3755     ;;
3756     ?*)
3757         die "Unknown toolchain $toolchain"
3758     ;;
3759 esac
3760
3761 test -n "$cross_prefix" && enable cross_compile
3762
3763 if enabled cross_compile; then
3764     test -n "$arch" && test -n "$target_os" ||
3765         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3766 fi
3767
3768 ar_default="${cross_prefix}${ar_default}"
3769 cc_default="${cross_prefix}${cc_default}"
3770 cxx_default="${cross_prefix}${cxx_default}"
3771 nm_default="${cross_prefix}${nm_default}"
3772 pkg_config_default="${cross_prefix}${pkg_config_default}"
3773 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3774     ranlib_default="${cross_prefix}${ranlib_default} -D"
3775 else
3776     ranlib_default="${cross_prefix}${ranlib_default}"
3777 fi
3778 strip_default="${cross_prefix}${strip_default}"
3779 windres_default="${cross_prefix}${windres_default}"
3780
3781 sysinclude_default="${sysroot}/usr/include"
3782
3783 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3784     target_exec target_os x86asmexe nvcc
3785 enabled cross_compile || host_cc_default=$cc
3786 set_default host_cc
3787
3788 pkg_config_fail_message=""
3789 if ! $pkg_config --version >/dev/null 2>&1; then
3790     warn "$pkg_config not found, library detection may fail."
3791     pkg_config=false
3792 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3793     pkg_config_fail_message="
3794 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3795 fi
3796
3797 if test $doxygen != $doxygen_default && \
3798   ! $doxygen --version >/dev/null 2>&1; then
3799     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3800 fi
3801
3802 exesuf() {
3803     case $1 in
3804         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3805     esac
3806 }
3807
3808 EXESUF=$(exesuf $target_os)
3809 HOSTEXESUF=$(exesuf $host_os)
3810
3811 # set temporary file name
3812 : ${TMPDIR:=$TEMPDIR}
3813 : ${TMPDIR:=$TMP}
3814 : ${TMPDIR:=/tmp}
3815
3816 if [ -n "$tempprefix" ] ; then
3817     mktemp(){
3818         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3819         echo "$tmpname"
3820         mkdir "$tmpname"
3821     }
3822 elif ! check_cmd mktemp -u XXXXXX; then
3823     # simple replacement for missing mktemp
3824     # NOT SAFE FOR GENERAL USE
3825     mktemp(){
3826         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3827         echo "$tmpname"
3828         mkdir "$tmpname"
3829     }
3830 fi
3831
3832 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3833     die "Unable to create temporary directory in $TMPDIR."
3834
3835 tmpfile(){
3836     tmp="${FFTMPDIR}/test"$2
3837     (set -C; exec > $tmp) 2> /dev/null ||
3838         die "Unable to create temporary file in $FFTMPDIR."
3839     eval $1=$tmp
3840 }
3841
3842 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3843 trap 'exit 2' INT
3844
3845 tmpfile TMPASM .asm
3846 tmpfile TMPC   .c
3847 tmpfile TMPCPP .cpp
3848 tmpfile TMPE   $EXESUF
3849 tmpfile TMPH   .h
3850 tmpfile TMPM   .m
3851 tmpfile TMPO   .o
3852 tmpfile TMPS   .S
3853 tmpfile TMPSH  .sh
3854 tmpfile TMPV   .ver
3855
3856 unset -f mktemp
3857
3858 chmod +x $TMPE
3859
3860 # make sure we can execute files in $TMPDIR
3861 cat > $TMPSH 2>> $logfile <<EOF
3862 #! /bin/sh
3863 EOF
3864 chmod +x $TMPSH >> $logfile 2>&1
3865 if ! $TMPSH >> $logfile 2>&1; then
3866     cat <<EOF
3867 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3868 variable to another directory and make sure that it is not mounted noexec.
3869 EOF
3870     die "Sanity test failed."
3871 fi
3872
3873 armasm_flags(){
3874     for flag; do
3875         case $flag in
3876             # Filter out MSVC cl.exe options from cflags that shouldn't
3877             # be passed to gas-preprocessor
3878             -M[TD]*)                                            ;;
3879             *)                  echo $flag                      ;;
3880         esac
3881    done
3882 }
3883
3884 ccc_flags(){
3885     for flag; do
3886         case $flag in
3887             -std=c99)           echo -c99                       ;;
3888             -mcpu=*)            echo -arch ${flag#*=}           ;;
3889             -mieee)             echo -ieee                      ;;
3890             -O*|-fast)          echo $flag                      ;;
3891             -fno-math-errno)    echo -assume nomath_errno       ;;
3892             -g)                 echo -g3                        ;;
3893             -Wall)              echo -msg_enable level2         ;;
3894             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3895             -Wl,*)              echo $flag                      ;;
3896             -f*|-W*)                                            ;;
3897             *)                  echo $flag                      ;;
3898         esac
3899    done
3900 }
3901
3902 cparser_flags(){
3903     for flag; do
3904         case $flag in
3905             -Wno-switch)             echo -Wno-switch-enum ;;
3906             -Wno-format-zero-length) ;;
3907             -Wdisabled-optimization) ;;
3908             -Wno-pointer-sign)       echo -Wno-other ;;
3909             *)                       echo $flag ;;
3910         esac
3911     done
3912 }
3913
3914 msvc_common_flags(){
3915     for flag; do
3916         case $flag in
3917             # In addition to specifying certain flags under the compiler
3918             # specific filters, they must be specified here as well or else the
3919             # generic catch all at the bottom will print the original flag.
3920             -Wall)                ;;
3921             -Wextra)              ;;
3922             -std=c99)             ;;
3923             # Common flags
3924             -fomit-frame-pointer) ;;
3925             -g)                   echo -Z7 ;;
3926             -fno-math-errno)      ;;
3927             -fno-common)          ;;
3928             -fno-signed-zeros)    ;;
3929             -fPIC)                ;;
3930             -mthumb)              ;;
3931             -march=*)             ;;
3932             -lz)                  echo zlib.lib ;;
3933             -lx264)               echo libx264.lib ;;
3934             -lstdc++)             ;;
3935             -l*)                  echo ${flag#-l}.lib ;;
3936             -LARGEADDRESSAWARE)   echo $flag ;;
3937             -L*)                  echo -libpath:${flag#-L} ;;
3938             *)                    echo $flag ;;
3939         esac
3940     done
3941 }
3942
3943 msvc_flags(){
3944     msvc_common_flags "$@"
3945     for flag; do
3946         case $flag in
3947             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3948                                        -wd4554 ;;
3949             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3950                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3951                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3952                                        -wd4307 \
3953                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3954         esac
3955     done
3956 }
3957
3958 icl_flags(){
3959     msvc_common_flags "$@"
3960     for flag; do
3961         case $flag in
3962             # Despite what Intel's documentation says -Wall, which is supported
3963             # on Windows, does enable remarks so disable them here.
3964             -Wall)                echo $flag -Qdiag-disable:remark ;;
3965             -std=c99)             echo -Qstd=c99 ;;
3966             -flto)                echo -ipo ;;
3967         esac
3968     done
3969 }
3970
3971 icc_flags(){
3972     for flag; do
3973         case $flag in
3974             -flto)                echo -ipo ;;
3975             *)                    echo $flag ;;
3976         esac
3977     done
3978 }
3979
3980 pgi_flags(){
3981     for flag; do
3982         case $flag in
3983             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3984             -fomit-frame-pointer) echo -Mnoframe ;;
3985             -g)                   echo -gopt ;;
3986             *)                    echo $flag ;;
3987         esac
3988     done
3989 }
3990
3991 suncc_flags(){
3992     for flag; do
3993         case $flag in
3994             -march=*|-mcpu=*)
3995                 case "${flag#*=}" in
3996                     native)                   echo -xtarget=native       ;;
3997                     v9|niagara)               echo -xarch=sparc          ;;
3998                     ultrasparc)               echo -xarch=sparcvis       ;;
3999                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
4000                     i586|pentium)             echo -xchip=pentium        ;;
4001                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
4002                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
4003                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
4004                     pentium4*)          echo -xtarget=pentium4           ;;
4005                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
4006                     *-sse3)             echo -xarch=sse3                 ;;
4007                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
4008                     bonnell)                   echo -xarch=ssse3         ;;
4009                     corei7|nehalem)            echo -xtarget=nehalem     ;;
4010                     westmere)                  echo -xtarget=westmere    ;;
4011                     silvermont)                echo -xarch=sse4_2        ;;
4012                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
4013                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
4014                                                echo -xarch=avx           ;;
4015                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
4016                     btver1)                    echo -xarch=amdsse4a      ;;
4017                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
4018                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
4019                     k8|opteron|athlon64|athlon-fx)
4020                                                echo -xarch=sse2a         ;;
4021                     athlon*)                   echo -xarch=pentium_proa  ;;
4022                 esac
4023                 ;;
4024             -std=c99)             echo -xc99              ;;
4025             -fomit-frame-pointer) echo -xregs=frameptr    ;;
4026             -fPIC)                echo -KPIC -xcode=pic32 ;;
4027             -W*,*)                echo $flag              ;;
4028             -f*-*|-W*|-mimpure-text)                      ;;
4029             -shared)              echo -G                 ;;
4030             *)                    echo $flag              ;;
4031         esac
4032     done
4033 }
4034
4035 tms470_flags(){
4036     for flag; do
4037         case $flag in
4038             -march=*|-mcpu=*)
4039                 case "${flag#*=}" in
4040                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
4041                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
4042                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
4043                     armv6*|arm11*)          echo -mv=6   ;;
4044                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4045                                             echo -mv=5e  ;;
4046                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4047                 esac
4048                 ;;
4049             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4050             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4051             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4052             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4053             -msoft-float)   echo --float_support=vfplib       ;;
4054             -O[0-3]|-mf=*)  echo $flag                        ;;
4055             -g)             echo -g -mn                       ;;
4056             -pds=*)         echo $flag                        ;;
4057             -D*|-I*)        echo $flag                        ;;
4058             --gcc|--abi=*)  echo $flag                        ;;
4059             -me)            echo $flag                        ;;
4060         esac
4061     done
4062 }
4063
4064 probe_cc(){
4065     pfx=$1
4066     _cc=$2
4067     first=$3
4068
4069     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4070     unset _ld_o _ldflags _ld_lib _ld_path
4071     unset _depflags _DEPCMD _DEPFLAGS
4072     _flags_filter=echo
4073
4074     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4075         true # no-op to avoid reading stdin in following checks
4076     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4077         _type=llvm_gcc
4078         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4079         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4080         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4081         _cflags_speed='-O3'
4082         _cflags_size='-Os'
4083     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4084         _type=gcc
4085         gcc_version=$($_cc --version | head -n1)
4086         gcc_basever=$($_cc -dumpversion)
4087         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4088         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4089         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4090         case $gcc_basever in
4091             2) ;;
4092             2.*) ;;
4093             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4094         esac
4095         if [ "$first" = true ]; then
4096             case $gcc_basever in
4097                 4.2*)
4098                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4099             esac
4100         fi
4101         _cflags_speed='-O3'
4102         _cflags_size='-Os'
4103     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4104         _type=icc
4105         _ident=$($_cc --version | head -n1)
4106         _depflags='-MMD'
4107         _cflags_speed='-O3'
4108         _cflags_size='-Os'
4109         _cflags_noopt='-O1'
4110         _flags_filter=icc_flags
4111     elif $_cc -v 2>&1 | grep -q xlc; then
4112         _type=xlc
4113         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4114         _cflags_speed='-O5'
4115         _cflags_size='-O5 -qcompact'
4116     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4117         _type=ccc
4118         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4119         _DEPFLAGS='-M'
4120         _cflags_speed='-fast'
4121         _cflags_size='-O1'
4122         _flags_filter=ccc_flags
4123     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4124         test -d "$sysroot" || die "No valid sysroot specified."
4125         _type=armcc
4126         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4127         armcc_conf="$PWD/armcc.conf"
4128         $_cc --arm_linux_configure                 \
4129              --arm_linux_config_file="$armcc_conf" \
4130              --configure_sysroot="$sysroot"        \
4131              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4132              die "Error creating armcc configuration file."
4133         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4134         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4135         as_default="${cross_prefix}gcc"
4136         _depflags='-MMD'
4137         _cflags_speed='-O3'
4138         _cflags_size='-Os'
4139     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4140         _type=tms470
4141         _ident=$($_cc -version | head -n1 | tr -s ' ')
4142         _flags='--gcc --abi=eabi -me'
4143         _cc_e='-ppl -fe=$@'
4144         _cc_o='-fe=$@'
4145         _depflags='-ppa -ppd=$(@:.o=.d)'
4146         _cflags_speed='-O3 -mf=5'
4147         _cflags_size='-O3 -mf=2'
4148         _flags_filter=tms470_flags
4149     elif $_cc -v 2>&1 | grep -q clang; then
4150         _type=clang
4151         _ident=$($_cc --version 2>/dev/null | head -n1)
4152         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4153         _cflags_speed='-O3'
4154         _cflags_size='-Oz'
4155     elif $_cc -V 2>&1 | grep -q Sun; then
4156         _type=suncc
4157         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4158         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4159         _DEPFLAGS='-xM1 -xc99'
4160         _ldflags='-std=c99'
4161         _cflags_speed='-O5'
4162         _cflags_size='-O5 -xspace'
4163         _flags_filter=suncc_flags
4164     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4165         _type=pathscale
4166         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4167         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4168         _cflags_speed='-O2'
4169         _cflags_size='-Os'
4170         _flags_filter='filter_out -Wdisabled-optimization'
4171     elif $_cc -v 2>&1 | grep -q Open64; then
4172         _type=open64
4173         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4174         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4175         _cflags_speed='-O2'
4176         _cflags_size='-Os'
4177         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4178     elif $_cc -V 2>&1 | grep -q Portland; then
4179         _type=pgi
4180         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4181         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4182         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4183         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4184         _cflags_noopt="-O"
4185         _flags_filter=pgi_flags
4186     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4187         _type=armasm
4188         _ident=$($_cc | head -n1)
4189         # 4509: "This form of conditional instruction is deprecated"
4190         _flags="-nologo -ignore 4509"
4191         _flags_filter=armasm_flags
4192     elif $_cc 2>&1 | grep -q Intel; then
4193         _type=icl
4194         _ident=$($_cc 2>&1 | head -n1)
4195         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4196         # Not only is O3 broken on 13.x+ but it is slower on all previous
4197         # versions (tested) as well.
4198         _cflags_speed="-O2"
4199         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4200         if $_cc 2>&1 | grep -q Linker; then
4201             _ld_o='-out:$@'
4202         else
4203             _ld_o='-Fe$@'
4204         fi
4205         _cc_o='-Fo$@'
4206         _cc_e='-P'
4207         _flags_filter=icl_flags
4208         _ld_lib='lib%.a'
4209         _ld_path='-libpath:'
4210         # -Qdiag-error to make icl error when seeing certain unknown arguments
4211         _flags='-nologo -Qdiag-error:4044,10157'
4212         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4213         # with MSVC which enables it by default.
4214         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4215         disable stripping
4216     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4217         # lld can emulate multiple different linkers; in ms link.exe mode,
4218         # the -? parameter gives the help output which contains an identifyable
4219         # string, while it gives an error in other modes.
4220         _type=lld-link
4221         # The link.exe mode doesn't have a switch for getting the version,
4222         # but we can force it back to gnu mode and get the version from there.
4223         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4224         _ld_o='-out:$@'
4225         _flags_filter=msvc_flags
4226         _ld_lib='lib%.a'
4227         _ld_path='-libpath:'
4228     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4229         _type=msvc
4230         _ident=$($_cc 2>&1 | head -n1)
4231         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4232         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4233         _cflags_speed="-O2"
4234         _cflags_size="-O1"
4235         _cflags_noopt="-O1"
4236         if $_cc -nologo- 2>&1 | grep -q Linker; then
4237             _ld_o='-out:$@'
4238         else
4239             _ld_o='-Fe$@'
4240         fi
4241         _cc_o='-Fo$@'
4242         _cc_e='-P -Fi$@'
4243         _flags_filter=msvc_flags
4244         _ld_lib='lib%.a'
4245         _ld_path='-libpath:'
4246         _flags='-nologo'
4247         disable stripping
4248     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4249         _type=cparser
4250         _ident=$($_cc --version | head -n1)
4251         _depflags='-MMD'
4252         _cflags_speed='-O4'
4253         _cflags_size='-O2'
4254         _flags_filter=cparser_flags
4255     fi
4256
4257     eval ${pfx}_type=\$_type
4258     eval ${pfx}_ident=\$_ident
4259 }
4260
4261 set_ccvars(){
4262     eval ${1}_C=\${_cc_c-\${${1}_C}}
4263     eval ${1}_E=\${_cc_e-\${${1}_E}}
4264     eval ${1}_O=\${_cc_o-\${${1}_O}}
4265
4266     if [ -n "$_depflags" ]; then
4267         eval ${1}_DEPFLAGS=\$_depflags
4268     else
4269         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4270         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4271         eval DEP${1}FLAGS=\$_flags
4272     fi
4273 }
4274
4275 probe_cc cc "$cc" "true"
4276 cflags_filter=$_flags_filter
4277 cflags_speed=$_cflags_speed
4278 cflags_size=$_cflags_size
4279 cflags_noopt=$_cflags_noopt
4280 add_cflags $_flags $_cflags
4281 cc_ldflags=$_ldflags
4282 set_ccvars CC
4283 set_ccvars CXX
4284
4285 probe_cc hostcc "$host_cc"
4286 host_cflags_filter=$_flags_filter
4287 host_cflags_speed=$_cflags_speed
4288 add_host_cflags  $_flags $_cflags
4289 set_ccvars HOSTCC
4290
4291 test -n "$cc_type" && enable $cc_type ||
4292     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4293
4294 : ${as_default:=$cc}
4295 : ${objcc_default:=$cc}
4296 : ${dep_cc_default:=$cc}
4297 : ${ld_default:=$cc}
4298 : ${host_ld_default:=$host_cc}
4299 set_default ar as objcc dep_cc ld ln_s host_ld windres
4300
4301 probe_cc as "$as"
4302 asflags_filter=$_flags_filter
4303 add_asflags $_flags $_cflags
4304 set_ccvars AS
4305
4306 probe_cc objcc "$objcc"
4307 objcflags_filter=$_flags_filter
4308 add_objcflags $_flags $_cflags
4309 set_ccvars OBJC
4310
4311 probe_cc ld "$ld"
4312 ldflags_filter=$_flags_filter
4313 add_ldflags $_flags $_ldflags
4314 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4315 LD_O=${_ld_o-$LD_O}
4316 LD_LIB=${_ld_lib-$LD_LIB}
4317 LD_PATH=${_ld_path-$LD_PATH}
4318
4319 probe_cc hostld "$host_ld"
4320 host_ldflags_filter=$_flags_filter
4321 add_host_ldflags $_flags $_ldflags
4322 HOSTLD_O=${_ld_o-$HOSTLD_O}
4323
4324 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4325     probe_cc depcc "$dep_cc"
4326     CCDEP=${_DEPCMD:-$DEPCMD}
4327     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4328     DEPCCFLAGS=$_flags
4329 fi
4330
4331 if $ar 2>&1 | grep -q Microsoft; then
4332     arflags="-nologo"
4333     ar_o='-out:$@'
4334 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4335     arflags="rq"
4336     ar_o='$@'
4337 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4338     arflags='-Xany -r -c'
4339     ar_o='$@'
4340 elif $ar 2>&1 | grep -q "\[D\] "; then
4341     arflags="rcD"
4342     ar_o='$@'
4343 else
4344     arflags="rc"
4345     ar_o='$@'
4346 fi
4347
4348 add_cflags $extra_cflags
4349 add_cxxflags $extra_cxxflags
4350 add_objcflags $extra_objcflags
4351 add_asflags $extra_cflags
4352
4353 if test -n "$sysroot"; then
4354     case "$cc_type" in
4355         gcc|llvm_gcc|clang)
4356             add_cppflags --sysroot="$sysroot"
4357             add_ldflags --sysroot="$sysroot"
4358 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4359             add_cppflags -isysroot "$sysroot"
4360             add_ldflags -isysroot "$sysroot"
4361         ;;
4362         tms470)
4363             add_cppflags -I"$sysinclude"
4364             add_ldflags  --sysroot="$sysroot"
4365         ;;
4366     esac
4367 fi
4368
4369 if test "$cpu" = host; then
4370     enabled cross_compile &&
4371         die "--cpu=host makes no sense when cross-compiling."
4372
4373     case "$cc_type" in
4374         gcc|llvm_gcc)
4375             check_native(){
4376                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4377                 sed -n "/cc1.*$1=/{
4378                             s/.*$1=\\([^ ]*\\).*/\\1/
4379                             p
4380                             q
4381                         }" $TMPE
4382             }
4383             cpu=$(check_native -march || check_native -mcpu)
4384         ;;
4385         clang)
4386             check_native(){
4387                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4388                 sed -n "/cc1.*-target-cpu /{
4389                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4390                             p
4391                             q
4392                         }" $TMPE
4393             }
4394             cpu=$(check_native -march)
4395         ;;
4396     esac
4397
4398     test "${cpu:-host}" = host &&
4399         die "--cpu=host not supported with compiler $cc"
4400 fi
4401
4402 # Deal with common $arch aliases
4403 case "$arch" in
4404     aarch64|arm64)
4405         arch="aarch64"
4406     ;;
4407     arm*|iPad*|iPhone*)
4408         arch="arm"
4409     ;;
4410     mips*|IP*)
4411         case "$arch" in
4412         *el)
4413             add_cppflags -EL
4414             add_ldflags -EL
4415         ;;
4416         *eb)
4417             add_cppflags -EB
4418             add_ldflags -EB
4419         ;;
4420         esac
4421         arch="mips"
4422     ;;
4423     parisc*|hppa*)
4424         arch="parisc"
4425     ;;
4426     "Power Macintosh"|ppc*|powerpc*)
4427         arch="ppc"
4428     ;;
4429     s390|s390x)
4430         arch="s390"
4431     ;;
4432     sh4|sh)
4433         arch="sh4"
4434     ;;
4435     sun4*|sparc*)
4436         arch="sparc"
4437     ;;
4438     tilegx|tile-gx)
4439         arch="tilegx"
4440     ;;
4441     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4442         arch="x86"
4443     ;;
4444 esac
4445
4446 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4447 enable $arch
4448
4449 # Add processor-specific flags
4450 if enabled aarch64; then
4451
4452     case $cpu in
4453         armv*)
4454             cpuflags="-march=$cpu"
4455         ;;
4456         *)
4457             cpuflags="-mcpu=$cpu"
4458         ;;
4459     esac
4460
4461 elif enabled alpha; then
4462
4463     cpuflags="-mcpu=$cpu"
4464
4465 elif enabled arm; then
4466
4467     check_arm_arch() {
4468         check_cpp_condition stddef.h \
4469             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4470             $cpuflags
4471     }
4472
4473     probe_arm_arch() {
4474         if   check_arm_arch 4;        then echo armv4
4475         elif check_arm_arch 4T;       then echo armv4t
4476         elif check_arm_arch 5;        then echo armv5
4477         elif check_arm_arch 5E;       then echo armv5e
4478         elif check_arm_arch 5T;       then echo armv5t
4479         elif check_arm_arch 5TE;      then echo armv5te
4480         elif check_arm_arch 5TEJ;     then echo armv5te
4481         elif check_arm_arch 6;        then echo armv6
4482         elif check_arm_arch 6J;       then echo armv6j
4483         elif check_arm_arch 6K;       then echo armv6k
4484         elif check_arm_arch 6Z;       then echo armv6z
4485         elif check_arm_arch 6ZK;      then echo armv6zk
4486         elif check_arm_arch 6T2;      then echo armv6t2
4487         elif check_arm_arch 7;        then echo armv7
4488         elif check_arm_arch 7A  7_A;  then echo armv7-a
4489         elif check_arm_arch 7S;       then echo armv7-a
4490         elif check_arm_arch 7R  7_R;  then echo armv7-r
4491         elif check_arm_arch 7M  7_M;  then echo armv7-m
4492         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4493         elif check_arm_arch 8A  8_A;  then echo armv8-a
4494         fi
4495     }
4496
4497     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4498
4499     case $cpu in
4500         armv*)
4501             cpuflags="-march=$cpu"
4502             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4503         ;;
4504         *)
4505             cpuflags="-mcpu=$cpu"
4506             case $cpu in
4507                 cortex-a*)                               subarch=armv7a  ;;
4508                 cortex-r*)                               subarch=armv7r  ;;
4509                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4510                 arm11*)                                  subarch=armv6   ;;
4511                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4512                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4513                 *)                             subarch=$(probe_arm_arch) ;;
4514             esac
4515         ;;
4516     esac
4517
4518     case "$subarch" in
4519         armv5t*)    enable fast_clz                ;;
4520         armv[6-8]*)
4521             enable fast_clz
4522             disabled fast_unaligned || enable fast_unaligned
4523             ;;
4524     esac
4525
4526 elif enabled avr32; then
4527
4528     case $cpu in
4529         ap7[02]0[0-2])
4530             subarch="avr32_ap"
4531             cpuflags="-mpart=$cpu"
4532         ;;
4533         ap)
4534             subarch="avr32_ap"
4535             cpuflags="-march=$cpu"
4536         ;;
4537         uc3[ab]*)
4538             subarch="avr32_uc"
4539             cpuflags="-mcpu=$cpu"
4540         ;;
4541         uc)
4542             subarch="avr32_uc"
4543             cpuflags="-march=$cpu"
4544         ;;
4545     esac
4546
4547 elif enabled bfin; then
4548
4549     cpuflags="-mcpu=$cpu"
4550
4551 elif enabled mips; then
4552
4553     cpuflags="-march=$cpu"
4554
4555     if [ "$cpu" != "generic" ]; then
4556         disable mips32r2
4557         disable mips32r5
4558         disable mips64r2
4559         disable mips32r6
4560         disable mips64r6
4561         disable loongson2
4562         disable loongson3
4563
4564         case $cpu in
4565             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4566                 enable mips32r2
4567                 disable msa
4568             ;;
4569             p5600|i6400|p6600)
4570                 disable mipsdsp
4571                 disable mipsdspr2
4572             ;;
4573             loongson*)
4574                 enable loongson2
4575                 enable loongson3
4576                 enable local_aligned_8 local_aligned_16 local_aligned_32
4577                 enable simd_align_16
4578                 enable fast_64bit
4579                 enable fast_clz
4580                 enable fast_cmov
4581                 enable fast_unaligned
4582                 disable aligned_stack
4583                 disable mipsfpu
4584                 disable mipsdsp
4585                 disable mipsdspr2
4586                 case $cpu in
4587                     loongson3*)
4588                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4589                     ;;
4590                     loongson2e)
4591                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4592                     ;;
4593                     loongson2f)
4594                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4595                     ;;
4596                 esac
4597             ;;
4598             *)
4599                 # Unknown CPU. Disable everything.
4600                 warn "unknown CPU. Disabling all MIPS optimizations."
4601                 disable mipsfpu
4602                 disable mipsdsp
4603                 disable mipsdspr2
4604                 disable msa
4605                 disable mmi
4606             ;;
4607         esac
4608
4609         case $cpu in
4610             24kc)
4611                 disable mipsfpu
4612                 disable mipsdsp
4613                 disable mipsdspr2
4614             ;;
4615             24kf*)
4616                 disable mipsdsp
4617                 disable mipsdspr2
4618             ;;
4619             24kec|34kc|1004kc)
4620                 disable mipsfpu
4621                 disable mipsdspr2
4622             ;;
4623             24kef*|34kf*|1004kf*)
4624                 disable mipsdspr2
4625             ;;
4626             74kc)
4627                 disable mipsfpu
4628             ;;
4629             p5600)
4630                 enable mips32r5
4631                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4632             ;;
4633             i6400)
4634                 enable mips64r6
4635                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4636             ;;
4637             p6600)
4638                 enable mips64r6
4639                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4640             ;;
4641         esac
4642     else
4643         # We do not disable anything. Is up to the user to disable the unwanted features.
4644         warn 'generic cpu selected'
4645     fi
4646
4647 elif enabled ppc; then
4648
4649     disable ldbrx
4650
4651     case $(tolower $cpu) in
4652         601|ppc601|powerpc601)
4653             cpuflags="-mcpu=601"
4654             disable altivec
4655         ;;
4656         603*|ppc603*|powerpc603*)
4657             cpuflags="-mcpu=603"
4658             disable altivec
4659         ;;
4660         604*|ppc604*|powerpc604*)
4661             cpuflags="-mcpu=604"
4662             disable altivec
4663         ;;
4664         g3|75*|ppc75*|powerpc75*)
4665             cpuflags="-mcpu=750"
4666             disable altivec
4667         ;;
4668         g4|745*|ppc745*|powerpc745*)
4669             cpuflags="-mcpu=7450"
4670             disable vsx
4671         ;;
4672         74*|ppc74*|powerpc74*)
4673             cpuflags="-mcpu=7400"
4674             disable vsx
4675         ;;
4676         g5|970|ppc970|powerpc970)
4677             cpuflags="-mcpu=970"
4678             disable vsx
4679         ;;
4680         power[3-6]*)
4681             cpuflags="-mcpu=$cpu"
4682             disable vsx
4683         ;;
4684         power[7-8]*)
4685             cpuflags="-mcpu=$cpu"
4686         ;;
4687         cell)
4688             cpuflags="-mcpu=cell"
4689             enable ldbrx
4690             disable vsx
4691         ;;
4692         e500mc)
4693             cpuflags="-mcpu=e500mc"
4694             disable altivec
4695         ;;
4696         e500v2)
4697             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4698             disable altivec
4699             disable dcbzl
4700         ;;
4701         e500)
4702             cpuflags="-mcpu=8540 -mhard-float"
4703             disable altivec
4704             disable dcbzl
4705         ;;
4706     esac
4707
4708 elif enabled sparc; then
4709
4710     case $cpu in
4711         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4712             cpuflags="-mcpu=$cpu"
4713         ;;
4714         ultrasparc*|niagara[234])
4715             cpuflags="-mcpu=$cpu"
4716         ;;
4717     esac
4718
4719 elif enabled x86; then
4720
4721     case $cpu in
4722         i[345]86|pentium)
4723             cpuflags="-march=$cpu"
4724             disable i686
4725             disable mmx
4726         ;;
4727         # targets that do NOT support nopl and conditional mov (cmov)
4728         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4729             cpuflags="-march=$cpu"
4730             disable i686
4731         ;;
4732         # targets that do support nopl and conditional mov (cmov)
4733         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4734         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4735         |amdfam10|barcelona|b[dt]ver*|znver*)
4736             cpuflags="-march=$cpu"
4737             enable i686
4738             enable fast_cmov
4739         ;;
4740         # targets that do support conditional mov but on which it's slow
4741         pentium4|pentium4m|prescott|nocona)
4742             cpuflags="-march=$cpu"
4743             enable i686
4744             disable fast_cmov
4745         ;;
4746     esac
4747
4748 fi
4749
4750 if [ "$cpu" != generic ]; then
4751     add_cflags  $cpuflags
4752     add_asflags $cpuflags
4753     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4754 fi
4755
4756 # compiler sanity check
4757 check_exec <<EOF
4758 int main(void){ return 0; }
4759 EOF
4760 if test "$?" != 0; then
4761     echo "$cc is unable to create an executable file."
4762     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4763         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4764         echo "Only do this if you know what cross compiling means."
4765     fi
4766     die "C compiler test failed."
4767 fi
4768
4769 add_cppflags -D_ISOC99_SOURCE
4770 add_cxxflags -D__STDC_CONSTANT_MACROS
4771 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4772
4773 # some compilers silently accept -std=c11, so we also need to check that the
4774 # version macro is defined properly
4775 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4776     add_cflags -std=c11
4777 else
4778     check_cflags -std=c99
4779 fi
4780
4781 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4782 #include <stdlib.h>
4783 EOF
4784 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4785 #include <stdlib.h>
4786 EOF
4787
4788 add_host_cppflags -D_ISOC99_SOURCE
4789 check_host_cflags -std=c99
4790 check_host_cflags -Wall
4791 check_host_cflags $host_cflags_speed
4792
4793 check_64bit(){
4794     arch32=$1
4795     arch64=$2
4796     expr=$3
4797     check_code cc "" "int test[2*($expr) - 1]" &&
4798         subarch=$arch64 || subarch=$arch32
4799 }
4800
4801 case "$arch" in
4802     aarch64|alpha|ia64)
4803         spic=$shared
4804     ;;
4805     mips)
4806         check_64bit mips mips64 '_MIPS_SIM > 1'
4807         spic=$shared
4808     ;;
4809     parisc)
4810         check_64bit parisc parisc64 'sizeof(void *) > 4'
4811         spic=$shared
4812     ;;
4813     ppc)
4814         check_64bit ppc ppc64 'sizeof(void *) > 4'
4815         spic=$shared
4816     ;;
4817     s390)
4818         check_64bit s390 s390x 'sizeof(void *) > 4'
4819         spic=$shared
4820     ;;
4821     sparc)
4822         check_64bit sparc sparc64 'sizeof(void *) > 4'
4823         spic=$shared
4824     ;;
4825     x86)
4826         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4827         # Treat x32 as x64 for now. Note it also needs spic=$shared
4828         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4829             subarch=x86_64
4830         if test "$subarch" = "x86_64"; then
4831             spic=$shared
4832         fi
4833     ;;
4834     ppc)
4835         check_cc <<EOF && subarch="ppc64"
4836         int test[(int)sizeof(char*) - 7];
4837 EOF
4838     ;;
4839 esac
4840
4841 enable $subarch
4842 enabled spic && enable_weak pic
4843
4844 enabled x86_64 && objformat=elf64 || objformat="elf32"
4845
4846 # OS specific
4847 case $target_os in
4848     aix)
4849         SHFLAGS=-shared
4850         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4851         enabled shared && add_ldflags -Wl,-brtl
4852         ;;
4853     android)
4854         disable symver
4855         enable section_data_rel_ro
4856         SLIB_INSTALL_NAME='$(SLIBNAME)'
4857         SLIB_INSTALL_LINKS=
4858         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4859         ;;
4860     haiku)
4861         prefix_default="/boot/common"
4862         network_extralibs="-lnetwork"
4863         host_extralibs=
4864         ;;
4865     sunos)
4866         SHFLAGS='-shared -Wl,-h,$$(@F)'
4867         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4868         network_extralibs="-lsocket -lnsl"
4869         add_cppflags -D__EXTENSIONS__
4870         # When using suncc to build, the Solaris linker will mark