Add support for LibOpenJPEG v2.2/git
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [ffbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$prefix_default]
84   --bindir=DIR             install binaries in DIR [PREFIX/bin]
85   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
86   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
87   --libdir=DIR             install libs in DIR [PREFIX/lib]
88   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
89   --incdir=DIR             install includes in DIR [PREFIX/include]
90   --mandir=DIR             install man page in DIR [PREFIX/share/man]
91   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
92   --enable-rpath           use rpath to allow installing libraries in paths
93                            not part of the dynamic linker search path
94                            use rpath when linking programs (USE WITH CARE)
95   --install-name-dir=DIR   Darwin directory name for installed targets
96
97 Licensing options:
98   --enable-gpl             allow use of GPL code, the resulting libs
99                            and binaries will be under GPL [no]
100   --enable-version3        upgrade (L)GPL to version 3 [no]
101   --enable-nonfree         allow use of nonfree code, the resulting libs
102                            and binaries will be unredistributable [no]
103
104 Configuration options:
105   --disable-static         do not build static libraries [no]
106   --enable-shared          build shared libraries [no]
107   --enable-small           optimize for size instead of speed
108   --disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
109   --enable-gray            enable full grayscale support (slower color)
110   --disable-swscale-alpha  disable alpha channel support in swscale
111   --disable-all            disable building components, libraries and programs
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
238   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
239   --enable-libopencv       enable video filtering via libopencv [no]
240   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
241   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
242   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
243   --enable-libopus         enable Opus de/encoding via libopus [no]
244   --enable-libpulse        enable Pulseaudio input via libpulse [no]
245   --enable-librsvg         enable SVG rasterization via librsvg [no]
246   --enable-librubberband   enable rubberband needed for rubberband filter [no]
247   --enable-librtmp         enable RTMP[E] support via librtmp [no]
248   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
249   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
250   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
251   --enable-libsoxr         enable Include libsoxr resampling [no]
252   --enable-libspeex        enable Speex de/encoding via libspeex [no]
253   --enable-libssh          enable SFTP protocol via libssh [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libv4l2         enable libv4l2/v4l-utils [no]
258   --enable-libvidstab      enable video stabilization using vid.stab [no]
259   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
260   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
261                            native implementation exists [no]
262   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
263   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
264   --enable-libwebp         enable WebP encoding via libwebp [no]
265   --enable-libx264         enable H.264 encoding via x264 [no]
266   --enable-libx265         enable HEVC encoding via x265 [no]
267   --enable-libxavs         enable AVS encoding via xavs [no]
268   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
269   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
270   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
271   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
272   --enable-libxvid         enable Xvid encoding via xvidcore,
273                            native MPEG-4/Xvid encoder exists [no]
274   --enable-libzimg         enable z.lib, needed for zscale filter [no]
275   --enable-libzmq          enable message passing via libzmq [no]
276   --enable-libzvbi         enable teletext support via libzvbi [no]
277   --disable-lzma           disable lzma [autodetect]
278   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
279   --enable-mediacodec      enable Android MediaCodec support [no]
280   --enable-libmysofa       enable libmysofa, needed for sofalizer filter [no]
281   --enable-openal          enable OpenAL 1.1 capture support [no]
282   --enable-opencl          enable OpenCL code
283   --enable-opengl          enable OpenGL rendering [no]
284   --enable-openssl         enable openssl, needed for https support
285                            if gnutls is not used [no]
286   --disable-schannel       disable SChannel SSP, needed for TLS support on
287                            Windows if openssl and gnutls are not used [autodetect]
288   --disable-sdl2           disable sdl2 [autodetect]
289   --disable-securetransport disable Secure Transport, needed for TLS support
290                            on OSX if openssl and gnutls are not used [autodetect]
291   --disable-xlib           disable xlib [autodetect]
292   --disable-zlib           disable zlib [autodetect]
293
294   The following libraries provide various hardware acceleration features:
295   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
296   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
297   --enable-cuda-sdk        enable CUDA features that require the CUDA SDK [no]
298   --disable-cuvid          disable Nvidia CUVID support [autodetect]
299   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
300   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
301   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
302   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
303   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
304   --disable-nvenc          disable Nvidia video encoding code [autodetect]
305   --enable-omx             enable OpenMAX IL code [no]
306   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
307   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
308   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
309   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
310   --disable-videotoolbox   disable VideoToolbox code [autodetect]
311
312 Toolchain options:
313   --arch=ARCH              select architecture [$arch]
314   --cpu=CPU                select the minimum required CPU (affects
315                            instruction selection, may crash on older CPUs)
316   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
317   --progs-suffix=SUFFIX    program name suffix []
318   --enable-cross-compile   assume a cross-compiler is used
319   --sysroot=PATH           root of cross-build tree
320   --sysinclude=PATH        location of cross-build system headers
321   --target-os=OS           compiler targets OS [$target_os]
322   --target-exec=CMD        command to run executables on target
323   --target-path=DIR        path to view of build directory on target
324   --target-samples=DIR     path to samples directory on target
325   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
326   --toolchain=NAME         set tool defaults according to NAME
327   --nm=NM                  use nm tool NM [$nm_default]
328   --ar=AR                  use archive tool AR [$ar_default]
329   --as=AS                  use assembler AS [$as_default]
330   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
331   --strip=STRIP            use strip tool STRIP [$strip_default]
332   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
333   --x86asmexe=EXE          use nasm-compatible assembler EXE [$x86asmexe_default]
334   --cc=CC                  use C compiler CC [$cc_default]
335   --cxx=CXX                use C compiler CXX [$cxx_default]
336   --objcc=OCC              use ObjC compiler OCC [$cc_default]
337   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
338   --nvcc=NVCC              use Nvidia CUDA compiler NVCC [$nvcc_default]
339   --ld=LD                  use linker LD [$ld_default]
340   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
341   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
342   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
343   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
344   --host-cc=HOSTCC         use host C compiler HOSTCC
345   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
346   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
347   --host-ld=HOSTLD         use host linker HOSTLD
348   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
349   --host-libs=HLIBS        use libs HLIBS when linking for host
350   --host-os=OS             compiler host OS [$target_os]
351   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
352   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
353   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
354   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
355   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
356   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
357   --extra-libs=ELIBS       add ELIBS [$ELIBS]
358   --extra-version=STRING   version string suffix []
359   --optflags=OPTFLAGS      override optimization-related compiler flags
360   --nvccflags=NVCCFLAGS    override nvcc flags [$nvccflags_default]
361   --build-suffix=SUFFIX    library name suffix []
362   --enable-pic             build position-independent code
363   --enable-thumb           compile for Thumb instruction set
364   --enable-lto             use link-time optimization
365   --env="ENV=override"     override the environment variables
366
367 Advanced options (experts only):
368   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
369   --custom-allocator=NAME  use a supported custom allocator
370   --disable-symver         disable symbol versioning
371   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
372   --disable-safe-bitstream-reader
373                            disable buffer boundary checking in bitreaders
374                            (faster, but may crash)
375   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
376
377 Optimization options (experts only):
378   --disable-asm            disable all assembly optimizations
379   --disable-altivec        disable AltiVec optimizations
380   --disable-vsx            disable VSX optimizations
381   --disable-power8         disable POWER8 optimizations
382   --disable-amd3dnow       disable 3DNow! optimizations
383   --disable-amd3dnowext    disable 3DNow! extended optimizations
384   --disable-mmx            disable MMX optimizations
385   --disable-mmxext         disable MMXEXT optimizations
386   --disable-sse            disable SSE optimizations
387   --disable-sse2           disable SSE2 optimizations
388   --disable-sse3           disable SSE3 optimizations
389   --disable-ssse3          disable SSSE3 optimizations
390   --disable-sse4           disable SSE4 optimizations
391   --disable-sse42          disable SSE4.2 optimizations
392   --disable-avx            disable AVX optimizations
393   --disable-xop            disable XOP optimizations
394   --disable-fma3           disable FMA3 optimizations
395   --disable-fma4           disable FMA4 optimizations
396   --disable-avx2           disable AVX2 optimizations
397   --disable-aesni          disable AESNI optimizations
398   --disable-armv5te        disable armv5te optimizations
399   --disable-armv6          disable armv6 optimizations
400   --disable-armv6t2        disable armv6t2 optimizations
401   --disable-vfp            disable VFP optimizations
402   --disable-neon           disable NEON optimizations
403   --disable-inline-asm     disable use of inline assembly
404   --disable-x86asm         disable use of standalone x86 assembly
405   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
406   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
407   --disable-msa            disable MSA optimizations
408   --disable-mipsfpu        disable floating point MIPS optimizations
409   --disable-mmi            disable Loongson SIMD optimizations
410   --disable-fast-unaligned consider unaligned accesses slow
411
412 Developer options (useful when working on FFmpeg itself):
413   --disable-debug          disable debugging symbols
414   --enable-debug=LEVEL     set the debug level [$debuglevel]
415   --disable-optimizations  disable compiler optimizations
416   --enable-extra-warnings  enable more compiler warnings
417   --disable-stripping      disable stripping of executables and shared libraries
418   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
419                            2 causes a slowdown at runtime.
420   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
421   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
422                            leaks and errors, using the specified valgrind binary.
423                            Cannot be combined with --target-exec
424   --enable-ftrapv          Trap arithmetic overflows
425   --samples=PATH           location of test samples for FATE, if not set use
426                            \$FATE_SAMPLES at make invocation time.
427   --enable-neon-clobber-test check NEON registers for clobbering (should be
428                            used only for debugging purposes)
429   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
430                            should be used only for debugging purposes)
431   --enable-random          randomly enable/disable components
432   --disable-random
433   --enable-random=LIST     randomly enable/disable specific components or
434   --disable-random=LIST    component groups. LIST is a comma-separated list
435                            of NAME[:PROB] entries where NAME is a component
436                            (group) and PROB the probability associated with
437                            NAME (default 0.5).
438   --random-seed=VALUE      seed value for --enable/disable-random
439   --disable-valgrind-backtrace do not print a backtrace under Valgrind
440                            (only applies to --disable-optimizations builds)
441   --enable-osfuzz          Enable building fuzzer tool
442   --libfuzzer=PATH         path to libfuzzer
443   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
444                            in the name) of tests whose result is ignored
445
446 NOTE: Object files are built at the place where configure is launched.
447 EOF
448   exit 0
449 }
450
451 quotes='""'
452 if test -t 1 && which tput >/dev/null 2>&1; then
453     ncolors=$(tput colors)
454     if test -n "$ncolors" && test $ncolors -ge 8; then
455         bold_color=$(tput bold)
456         warn_color=$(tput setaf 3)
457         error_color=$(tput setaf 1)
458         reset_color=$(tput sgr0)
459     fi
460     # 72 used instead of 80 since that's the default of pr
461     ncols=$(tput cols)
462 fi
463 : ${ncols:=72}
464
465 log(){
466     echo "$@" >> $logfile
467 }
468
469 log_file(){
470     log BEGIN $1
471     pr -n -t $1 >> $logfile
472     log END $1
473 }
474
475 warn(){
476     log "WARNING: $*"
477     WARNINGS="${WARNINGS}WARNING: $*\n"
478 }
479
480 die(){
481     log "$@"
482     echo "$error_color$bold_color$@$reset_color"
483     cat <<EOF
484
485 If you think configure made a mistake, make sure you are using the latest
486 version from Git.  If the latest version fails, report the problem to the
487 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
488 EOF
489     if disabled logging; then
490         cat <<EOF
491 Rerun configure with logging enabled (do not use --disable-logging), and
492 include the log this produces with your report.
493 EOF
494     else
495         cat <<EOF
496 Include the log file "$logfile" produced by configure as this will help
497 solve the problem.
498 EOF
499     fi
500     exit 1
501 }
502
503 # Avoid locale weirdness, besides we really just want to translate ASCII.
504 toupper(){
505     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
506 }
507
508 tolower(){
509     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
510 }
511
512 c_escape(){
513     echo "$*" | sed 's/["\\]/\\\0/g'
514 }
515
516 sh_quote(){
517     v=$(echo "$1" | sed "s/'/'\\\\''/g")
518     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
519     echo "$v"
520 }
521
522 cleanws(){
523     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
524 }
525
526 filter(){
527     pat=$1
528     shift
529     for v; do
530         eval "case $v in $pat) printf '%s ' $v ;; esac"
531     done
532 }
533
534 filter_out(){
535     pat=$1
536     shift
537     for v; do
538         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
539     done
540 }
541
542 map(){
543     m=$1
544     shift
545     for v; do eval $m; done
546 }
547
548 add_suffix(){
549     suffix=$1
550     shift
551     for v; do echo ${v}${suffix}; done
552 }
553
554 set_all(){
555     value=$1
556     shift
557     for var in $*; do
558         eval $var=$value
559     done
560 }
561
562 set_weak(){
563     value=$1
564     shift
565     for var; do
566         eval : \${$var:=$value}
567     done
568 }
569
570 sanitize_var_name(){
571     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
572 }
573
574 set_safe(){
575     var=$1
576     shift
577     eval $(sanitize_var_name "$var")='$*'
578 }
579
580 get_safe(){
581     eval echo \$$(sanitize_var_name "$1")
582 }
583
584 pushvar(){
585     for pvar in $*; do
586         eval level=\${${pvar}_level:=0}
587         eval ${pvar}_${level}="\$$pvar"
588         eval ${pvar}_level=$(($level+1))
589     done
590 }
591
592 popvar(){
593     for pvar in $*; do
594         eval level=\${${pvar}_level:-0}
595         test $level = 0 && continue
596         eval level=$(($level-1))
597         eval $pvar="\${${pvar}_${level}}"
598         eval ${pvar}_level=$level
599         eval unset ${pvar}_${level}
600     done
601 }
602
603 request(){
604     for var in $*; do
605         eval ${var}_requested=yes
606         eval $var=
607     done
608 }
609
610 enable(){
611     set_all yes $*
612 }
613
614 disable(){
615     set_all no $*
616 }
617
618 enable_weak(){
619     set_weak yes $*
620 }
621
622 disable_weak(){
623     set_weak no $*
624 }
625
626 enable_safe(){
627     for var; do
628         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
629     done
630 }
631
632 disable_safe(){
633     for var; do
634         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
635     done
636 }
637
638 do_enable_deep(){
639     for var; do
640         enabled $var && continue
641         eval sel="\$${var}_select"
642         eval sgs="\$${var}_suggest"
643         pushvar var sgs
644         enable_deep $sel
645         popvar sgs
646         enable_deep_weak $sgs
647         popvar var
648     done
649 }
650
651 enable_deep(){
652     do_enable_deep $*
653     enable $*
654 }
655
656 enable_deep_weak(){
657     for var; do
658         disabled $var && continue
659         pushvar var
660         do_enable_deep $var
661         popvar var
662         enable_weak $var
663     done
664 }
665
666 requested(){
667     test "${1#!}" = "$1" && op='=' || op=!=
668     eval test "x\$${1#!}_requested" $op "xyes"
669 }
670
671 enabled(){
672     test "${1#!}" = "$1" && op='=' || op=!=
673     eval test "x\$${1#!}" $op "xyes"
674 }
675
676 disabled(){
677     test "${1#!}" = "$1" && op='=' || op=!=
678     eval test "x\$${1#!}" $op "xno"
679 }
680
681 enabled_all(){
682     for opt; do
683         enabled $opt || return 1
684     done
685 }
686
687 disabled_all(){
688     for opt; do
689         disabled $opt || return 1
690     done
691 }
692
693 enabled_any(){
694     for opt; do
695         enabled $opt && return 0
696     done
697 }
698
699 disabled_any(){
700     for opt; do
701         disabled $opt && return 0
702     done
703     return 1
704 }
705
706 set_default(){
707     for opt; do
708         eval : \${$opt:=\$${opt}_default}
709     done
710 }
711
712 is_in(){
713     value=$1
714     shift
715     for var in $*; do
716         [ $var = $value ] && return 0
717     done
718     return 1
719 }
720
721 do_check_deps(){
722     for cfg; do
723         cfg="${cfg#!}"
724         enabled ${cfg}_checking && die "Circular dependency for $cfg."
725         disabled ${cfg}_checking && continue
726         enable ${cfg}_checking
727         append allopts $cfg
728
729         eval dep_all="\$${cfg}_deps"
730         eval dep_any="\$${cfg}_deps_any"
731         eval dep_sel="\$${cfg}_select"
732         eval dep_sgs="\$${cfg}_suggest"
733         eval dep_ifa="\$${cfg}_if"
734         eval dep_ifn="\$${cfg}_if_any"
735
736         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
737         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
738         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
739
740         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
741         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
742         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
743         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
744         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
745
746         if enabled $cfg; then
747             enable_deep $dep_sel
748             enable_deep_weak $dep_sgs
749         fi
750
751         disable ${cfg}_checking
752     done
753 }
754
755 check_deps(){
756     unset allopts
757
758     do_check_deps "$@"
759
760     for cfg in $allopts; do
761         enabled $cfg || continue
762         eval dep_extralibs="\$${cfg}_extralibs"
763         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
764     done
765 }
766
767 print_config(){
768     pfx=$1
769     files=$2
770     shift 2
771     map 'eval echo "$v \${$v:-no}"' "$@" |
772     awk "BEGIN { split(\"$files\", files) }
773         {
774             c = \"$pfx\" toupper(\$1);
775             v = \$2;
776             sub(/yes/, 1, v);
777             sub(/no/,  0, v);
778             for (f in files) {
779                 file = files[f];
780                 if (file ~ /\\.h\$/) {
781                     printf(\"#define %s %d\\n\", c, v) >>file;
782                 } else if (file ~ /\\.asm\$/) {
783                     printf(\"%%define %s %d\\n\", c, v) >>file;
784                 } else if (file ~ /\\.mak\$/) {
785                     n = -v ? \"\" : \"!\";
786                     printf(\"%s%s=yes\\n\", n, c) >>file;
787                 } else if (file ~ /\\.texi\$/) {
788                     pre = -v ? \"\" : \"@c \";
789                     yesno = \$2;
790                     c2 = tolower(c);
791                     gsub(/_/, \"-\", c2);
792                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
793                 }
794             }
795         }"
796 }
797
798 print_enabled(){
799     suf=$1
800     shift
801     for v; do
802         enabled $v && printf "%s\n" ${v%$suf}
803     done
804 }
805
806 append(){
807     var=$1
808     shift
809     eval "$var=\"\$$var $*\""
810 }
811
812 prepend(){
813     var=$1
814     shift
815     eval "$var=\"$* \$$var\""
816 }
817
818 unique(){
819     var=$1
820     uniq_list=""
821     for tok in $(eval echo \$$var); do
822         uniq_list="$(filter_out $tok $uniq_list) $tok"
823     done
824     eval "$var=\"${uniq_list}\""
825 }
826
827 add_cppflags(){
828     append CPPFLAGS "$@"
829 }
830
831 add_cflags(){
832     append CFLAGS $($cflags_filter "$@")
833 }
834
835 add_cflags_headers(){
836     append CFLAGS_HEADERS $($cflags_filter "$@")
837 }
838
839 add_cxxflags(){
840     append CXXFLAGS $($cflags_filter "$@")
841 }
842
843 add_asflags(){
844     append ASFLAGS $($asflags_filter "$@")
845 }
846
847 add_objcflags(){
848     append OBJCFLAGS $($objcflags_filter "$@")
849 }
850
851 add_ldflags(){
852     append LDFLAGS $($ldflags_filter "$@")
853 }
854
855 add_ldexeflags(){
856     append LDEXEFLAGS $($ldflags_filter "$@")
857 }
858
859 add_ldlibflags(){
860     append LDLIBFLAGS $($ldflags_filter "$@")
861 }
862
863 add_stripflags(){
864     append ASMSTRIPFLAGS "$@"
865 }
866
867 add_extralibs(){
868     prepend extralibs $($ldflags_filter "$@")
869 }
870
871 add_host_cppflags(){
872     append host_cppflags "$@"
873 }
874
875 add_host_cflags(){
876     append host_cflags $($host_cflags_filter "$@")
877 }
878
879 add_host_ldflags(){
880     append host_ldflags $($host_ldflags_filter "$@")
881 }
882
883 add_compat(){
884     append compat_objs $1
885     shift
886     map 'add_cppflags -D$v' "$@"
887 }
888
889 check_cmd(){
890     log "$@"
891     "$@" >> $logfile 2>&1
892 }
893
894 check_stat(){
895     log check_stat "$@"
896     stat "$1" >> $logfile 2>&1
897 }
898
899 cc_o(){
900     eval printf '%s\\n' $CC_O
901 }
902
903 cc_e(){
904     eval printf '%s\\n' $CC_E
905 }
906
907 check_cc(){
908     log check_cc "$@"
909     cat > $TMPC
910     log_file $TMPC
911     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
912 }
913
914 check_cxx(){
915     log check_cxx "$@"
916     cat > $TMPCPP
917     log_file $TMPCPP
918     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
919 }
920
921 check_objcc(){
922     log check_objcc "$@"
923     cat > $TMPM
924     log_file $TMPM
925     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
926 }
927
928 check_cpp(){
929     log check_cpp "$@"
930     cat > $TMPC
931     log_file $TMPC
932     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
933 }
934
935 as_o(){
936     eval printf '%s\\n' $AS_O
937 }
938
939 check_as(){
940     log check_as "$@"
941     cat > $TMPS
942     log_file $TMPS
943     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
944 }
945
946 check_inline_asm(){
947     log check_inline_asm "$@"
948     name="$1"
949     code="$2"
950     shift 2
951     disable $name
952     check_cc "$@" <<EOF && enable $name
953 void foo(void){ __asm__ volatile($code); }
954 EOF
955 }
956
957 check_inline_asm_flags(){
958     log check_inline_asm_flags "$@"
959     name="$1"
960     code="$2"
961     flags=''
962     shift 2
963     while [ "$1" != "" ]; do
964       append flags $1
965       shift
966     done;
967     disable $name
968     cat > $TMPC <<EOF
969 void foo(void){ __asm__ volatile($code); }
970 EOF
971     log_file $TMPC
972     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
973     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
974 }
975
976 check_insn(){
977     log check_insn "$@"
978     check_inline_asm ${1}_inline "\"$2\""
979     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
980 }
981
982 check_x86asm(){
983     log check_x86asm "$@"
984     echo "$1" > $TMPS
985     log_file $TMPS
986     shift 1
987     check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
988 }
989
990 ld_o(){
991     eval printf '%s\\n' $LD_O
992 }
993
994 check_ld(){
995     log check_ld "$@"
996     type=$1
997     shift 1
998     flags=$(filter_out '-l*|*.so' $@)
999     libs=$(filter '-l*|*.so' $@)
1000     check_$type $($cflags_filter $flags) || return
1001     flags=$($ldflags_filter $flags)
1002     libs=$($ldflags_filter $libs)
1003     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
1004 }
1005
1006 print_include(){
1007     hdr=$1
1008     test "${hdr%.h}" = "${hdr}" &&
1009         echo "#include $hdr"    ||
1010         echo "#include <$hdr>"
1011 }
1012
1013 check_code(){
1014     log check_code "$@"
1015     check=$1
1016     headers=$2
1017     code=$3
1018     shift 3
1019     {
1020         for hdr in $headers; do
1021             print_include $hdr
1022         done
1023         echo "int main(void) { $code; return 0; }"
1024     } | check_$check "$@"
1025 }
1026
1027 check_cppflags(){
1028     log check_cppflags "$@"
1029     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1030 int x;
1031 EOF
1032 }
1033
1034 test_cflags(){
1035     log test_cflags "$@"
1036     set -- $($cflags_filter "$@")
1037     check_cc "$@" <<EOF
1038 int x;
1039 EOF
1040 }
1041
1042 check_cflags(){
1043     log check_cflags "$@"
1044     test_cflags "$@" && add_cflags "$@"
1045 }
1046
1047 check_cxxflags(){
1048     log check_cxxflags "$@"
1049     set -- $($cflags_filter "$@")
1050     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1051 int x;
1052 EOF
1053 }
1054
1055 test_objcflags(){
1056     log test_objcflags "$@"
1057     set -- $($objcflags_filter "$@")
1058     check_objcc "$@" <<EOF
1059 int x;
1060 EOF
1061 }
1062
1063 check_objcflags(){
1064     log check_objcflags "$@"
1065     test_objcflags "$@" && add_objcflags "$@"
1066 }
1067
1068 test_ldflags(){
1069     log test_ldflags "$@"
1070     check_ld "cc" "$@" <<EOF
1071 int main(void){ return 0; }
1072 EOF
1073 }
1074
1075 check_ldflags(){
1076     log check_ldflags "$@"
1077     test_ldflags "$@" && add_ldflags "$@"
1078 }
1079
1080 test_stripflags(){
1081     log test_stripflags "$@"
1082     # call check_cc to get a fresh TMPO
1083     check_cc <<EOF
1084 int main(void) { return 0; }
1085 EOF
1086     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1087 }
1088
1089 check_stripflags(){
1090     log check_stripflags "$@"
1091     test_stripflags "$@" && add_stripflags "$@"
1092 }
1093
1094 check_header(){
1095     log check_header "$@"
1096     header=$1
1097     shift
1098     disable_safe $header
1099     check_cpp "$@" <<EOF && enable_safe $header
1100 #include <$header>
1101 int x;
1102 EOF
1103 }
1104
1105 check_header_objcc(){
1106     log check_header_objcc "$@"
1107     rm -f -- "$TMPO"
1108     header=$1
1109     shift
1110     disable_safe $header
1111     {
1112        echo "#include <$header>"
1113        echo "int main(void) { return 0; }"
1114     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1115 }
1116
1117 check_func(){
1118     log check_func "$@"
1119     func=$1
1120     shift
1121     disable $func
1122     check_ld "cc" "$@" <<EOF && enable $func
1123 extern int $func();
1124 int main(void){ $func(); }
1125 EOF
1126 }
1127
1128 check_complexfunc(){
1129     log check_complexfunc "$@"
1130     func=$1
1131     narg=$2
1132     shift 2
1133     test $narg = 2 && args="f, g" || args="f * I"
1134     disable $func
1135     check_ld "cc" "$@" <<EOF && enable $func
1136 #include <complex.h>
1137 #include <math.h>
1138 float foo(complex float f, complex float g) { return $func($args); }
1139 int main(void){ return (int) foo; }
1140 EOF
1141 }
1142
1143 check_mathfunc(){
1144     log check_mathfunc "$@"
1145     func=$1
1146     narg=$2
1147     shift 2
1148     test $narg = 2 && args="f, g" || args="f"
1149     disable $func
1150     check_ld "cc" "$@" <<EOF && enable $func
1151 #include <math.h>
1152 float foo(float f, float g) { return $func($args); }
1153 int main(void){ return (int) foo; }
1154 EOF
1155 }
1156
1157 check_func_headers(){
1158     log check_func_headers "$@"
1159     headers=$1
1160     funcs=$2
1161     shift 2
1162     {
1163         for hdr in $headers; do
1164             print_include $hdr
1165         done
1166         echo "#include <stdint.h>"
1167         for func in $funcs; do
1168             echo "long check_$func(void) { return (long) $func; }"
1169         done
1170         echo "int main(void) { int ret = 0;"
1171         # LTO could optimize out the test functions without this
1172         for func in $funcs; do
1173             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1174         done
1175         echo "return ret; }"
1176     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1177 }
1178
1179 check_class_headers_cpp(){
1180     log check_class_headers_cpp "$@"
1181     headers=$1
1182     classes=$2
1183     shift 2
1184     {
1185         for hdr in $headers; do
1186             echo "#include <$hdr>"
1187         done
1188         echo "int main(void) { "
1189         i=1
1190         for class in $classes; do
1191             echo "$class obj$i;"
1192             i=$(expr $i + 1)
1193         done
1194         echo "return 0; }"
1195     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1196 }
1197
1198 check_cpp_condition(){
1199     log check_cpp_condition "$@"
1200     header=$1
1201     condition=$2
1202     shift 2
1203     check_cpp "$@" <<EOF
1204 #include <$header>
1205 #if !($condition)
1206 #error "unsatisfied condition: $condition"
1207 #endif
1208 EOF
1209 }
1210
1211 test_cflags_cc(){
1212     log test_cflags_cc "$@"
1213     flags=$1
1214     header=$2
1215     condition=$3
1216     shift 3
1217     set -- $($cflags_filter "$flags")
1218     check_cc "$@" <<EOF
1219 #include <$header>
1220 #if !($condition)
1221 #error "unsatisfied condition: $condition"
1222 #endif
1223 EOF
1224 }
1225
1226 check_lib(){
1227     log check_lib "$@"
1228     name="$1"
1229     headers="$2"
1230     funcs="$3"
1231     shift 3
1232     disable $name
1233     check_func_headers "$headers" "$funcs" "$@" &&
1234         enable $name && add_extralibs "$@"
1235 }
1236
1237 check_lib_cpp(){
1238     log check_lib_cpp "$@"
1239     headers="$1"
1240     classes="$2"
1241     shift 2
1242     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1243 }
1244
1245 check_pkg_config(){
1246     log check_pkg_config "$@"
1247     pkg_version="$1"
1248     pkg="${1%% *}"
1249     headers="$2"
1250     funcs="$3"
1251     shift 3
1252     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1253     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1254     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1255     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1256         set_safe "${pkg}_cflags"    $pkg_cflags &&
1257         set_safe "${pkg}_extralibs" $pkg_libs
1258 }
1259
1260 check_exec(){
1261     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1262 }
1263
1264 check_exec_crash(){
1265     log check_exec_crash "$@"
1266     code=$(cat)
1267
1268     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1269     # are safe but may not be available everywhere.  Thus we use
1270     # raise(SIGTERM) instead.  The check is run in a subshell so we
1271     # can redirect the "Terminated" message from the shell.  SIGBUS
1272     # is not defined by standard C so it is used conditionally.
1273
1274     (check_exec "$@") >> $logfile 2>&1 <<EOF
1275 #include <signal.h>
1276 static void sighandler(int sig){
1277     raise(SIGTERM);
1278 }
1279 int foo(void){
1280     $code
1281 }
1282 int (*func_ptr)(void) = foo;
1283 int main(void){
1284     signal(SIGILL, sighandler);
1285     signal(SIGFPE, sighandler);
1286     signal(SIGSEGV, sighandler);
1287 #ifdef SIGBUS
1288     signal(SIGBUS, sighandler);
1289 #endif
1290     return func_ptr();
1291 }
1292 EOF
1293 }
1294
1295 check_type(){
1296     log check_type "$@"
1297     headers=$1
1298     type=$2
1299     shift 2
1300     disable_safe "$type"
1301     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1302 }
1303
1304 check_struct(){
1305     log check_struct "$@"
1306     headers=$1
1307     struct=$2
1308     member=$3
1309     shift 3
1310     disable_safe "${struct}_${member}"
1311     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1312         enable_safe "${struct}_${member}"
1313 }
1314
1315 check_builtin(){
1316     log check_builtin "$@"
1317     name=$1
1318     headers=$2
1319     builtin=$3
1320     shift 3
1321     disable "$name"
1322     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1323 }
1324
1325 check_compile_assert(){
1326     log check_compile_assert "$@"
1327     name=$1
1328     headers=$2
1329     condition=$3
1330     shift 3
1331     disable "$name"
1332     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1333 }
1334
1335 require(){
1336     log require "$@"
1337     name_version="$1"
1338     name="${1%% *}"
1339     headers="$2"
1340     func="$3"
1341     shift 3
1342     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1343 }
1344
1345 require_cpp(){
1346     name="$1"
1347     headers="$2"
1348     classes="$3"
1349     shift 3
1350     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1351 }
1352
1353 use_pkg_config(){
1354     log use_pkg_config "$@"
1355     pkg="$1"
1356     check_pkg_config "$@" || return 1
1357     add_cflags    $(get_safe "${pkg}_cflags")
1358     add_extralibs $(get_safe "${pkg}_extralibs")
1359 }
1360
1361 require_pkg_config(){
1362     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1363 }
1364
1365 hostcc_e(){
1366     eval printf '%s\\n' $HOSTCC_E
1367 }
1368
1369 hostcc_o(){
1370     eval printf '%s\\n' $HOSTCC_O
1371 }
1372
1373 check_host_cc(){
1374     log check_host_cc "$@"
1375     cat > $TMPC
1376     log_file $TMPC
1377     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1378 }
1379
1380 check_host_cpp(){
1381     log check_host_cpp "$@"
1382     cat > $TMPC
1383     log_file $TMPC
1384     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1385 }
1386
1387 check_host_cppflags(){
1388     log check_host_cppflags "$@"
1389     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1390 int x;
1391 EOF
1392 }
1393
1394 check_host_cflags(){
1395     log check_host_cflags "$@"
1396     set -- $($host_cflags_filter "$@")
1397     check_host_cc "$@" <<EOF && append host_cflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cpp_condition(){
1403     log check_host_cpp_condition "$@"
1404     header=$1
1405     condition=$2
1406     shift 2
1407     check_host_cpp "$@" <<EOF
1408 #include <$header>
1409 #if !($condition)
1410 #error "unsatisfied condition: $condition"
1411 #endif
1412 EOF
1413 }
1414
1415 cp_if_changed(){
1416     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1417     mkdir -p "$(dirname $2)"
1418     cp -f "$1" "$2"
1419 }
1420
1421 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1422 # system-dependent things.
1423
1424 AVCODEC_COMPONENTS="
1425     bsfs
1426     decoders
1427     encoders
1428     hwaccels
1429     parsers
1430 "
1431
1432 AVDEVICE_COMPONENTS="
1433     indevs
1434     outdevs
1435 "
1436 AVFILTER_COMPONENTS="
1437     filters
1438 "
1439 AVFORMAT_COMPONENTS="
1440     demuxers
1441     muxers
1442     protocols
1443 "
1444
1445 AVRESAMPLE_COMPONENTS=""
1446 AVUTIL_COMPONENTS=""
1447
1448 COMPONENT_LIST="
1449     $AVCODEC_COMPONENTS
1450     $AVDEVICE_COMPONENTS
1451     $AVFILTER_COMPONENTS
1452     $AVFORMAT_COMPONENTS
1453     $AVRESAMPLE_COMPONENTS
1454     $AVUTIL_COMPONENTS
1455 "
1456
1457 EXAMPLE_LIST="
1458     avio_dir_cmd_example
1459     avio_reading_example
1460     decode_audio_example
1461     decode_video_example
1462     demuxing_decoding_example
1463     encode_audio_example
1464     encode_video_example
1465     extract_mvs_example
1466     filter_audio_example
1467     filtering_audio_example
1468     filtering_video_example
1469     http_multiclient_example
1470     metadata_example
1471     muxing_example
1472     qsvdec_example
1473     remuxing_example
1474     resampling_audio_example
1475     scaling_video_example
1476     transcode_aac_example
1477     transcoding_example
1478 "
1479 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1480     bzlib
1481     iconv
1482     libxcb
1483     libxcb_shm
1484     libxcb_shape
1485     libxcb_xfixes
1486     lzma
1487     schannel
1488     sdl
1489     sdl2
1490     securetransport
1491     xlib
1492     zlib
1493 "
1494
1495 EXTERNAL_LIBRARY_GPL_LIST="
1496     avisynth
1497     frei0r
1498     libcdio
1499     librubberband
1500     libvidstab
1501     libx264
1502     libx265
1503     libxavs
1504     libxvid
1505 "
1506
1507 EXTERNAL_LIBRARY_NONFREE_LIST="
1508     decklink
1509     libfdk_aac
1510     openssl
1511 "
1512
1513 EXTERNAL_LIBRARY_VERSION3_LIST="
1514     gmp
1515     libopencore_amrnb
1516     libopencore_amrwb
1517     libvo_amrwbenc
1518 "
1519
1520 EXTERNAL_LIBRARY_GPLV3_LIST="
1521     libsmbclient
1522 "
1523
1524 EXTERNAL_LIBRARY_LIST="
1525     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1526     $EXTERNAL_LIBRARY_GPL_LIST
1527     $EXTERNAL_LIBRARY_NONFREE_LIST
1528     $EXTERNAL_LIBRARY_VERSION3_LIST
1529     $EXTERNAL_LIBRARY_GPLV3_LIST
1530     chromaprint
1531     crystalhd
1532     gcrypt
1533     gnutls
1534     jni
1535     ladspa
1536     libass
1537     libbluray
1538     libbs2b
1539     libcaca
1540     libcelt
1541     libdc1394
1542     libflite
1543     libfontconfig
1544     libfreetype
1545     libfribidi
1546     libgme
1547     libgsm
1548     libiec61883
1549     libilbc
1550     libkvazaar
1551     libmodplug
1552     libmp3lame
1553     libmysofa
1554     libopencv
1555     libopenh264
1556     libopenjpeg
1557     libopenmpt
1558     libopus
1559     libpulse
1560     librsvg
1561     librtmp
1562     libshine
1563     libsmbclient
1564     libsnappy
1565     libsoxr
1566     libspeex
1567     libssh
1568     libtesseract
1569     libtheora
1570     libtwolame
1571     libv4l2
1572     libvorbis
1573     libvpx
1574     libwavpack
1575     libwebp
1576     libzimg
1577     libzmq
1578     libzvbi
1579     mediacodec
1580     openal
1581     opencl
1582     opengl
1583     videotoolbox
1584 "
1585 HWACCEL_AUTODETECT_LIBRARY_LIST="
1586     audiotoolbox
1587     cuda
1588     cuvid
1589     d3d11va
1590     dxva2
1591     nvenc
1592     vaapi
1593     vda
1594     vdpau
1595     videotoolbox_hwaccel
1596     xvmc
1597 "
1598
1599 HWACCEL_LIBRARY_NONFREE_LIST="
1600     cuda_sdk
1601     libnpp
1602 "
1603
1604 HWACCEL_LIBRARY_LIST="
1605     $HWACCEL_AUTODETECT_LIBRARY_LIST
1606     $HWACCEL_LIBRARY_NONFREE_LIST
1607     libmfx
1608     mmal
1609     omx
1610 "
1611
1612 DOCUMENT_LIST="
1613     doc
1614     htmlpages
1615     manpages
1616     podpages
1617     txtpages
1618 "
1619
1620 FEATURE_LIST="
1621     ftrapv
1622     gray
1623     hardcoded_tables
1624     omx_rpi
1625     runtime_cpudetect
1626     safe_bitstream_reader
1627     shared
1628     small
1629     static
1630     swscale_alpha
1631 "
1632
1633 LIBRARY_LIST="
1634     avcodec
1635     avdevice
1636     avfilter
1637     avformat
1638     avresample
1639     avutil
1640     postproc
1641     swresample
1642     swscale
1643 "
1644
1645 LICENSE_LIST="
1646     gpl
1647     nonfree
1648     version3
1649 "
1650
1651 PROGRAM_LIST="
1652     ffplay
1653     ffprobe
1654     ffserver
1655     ffmpeg
1656 "
1657
1658 SUBSYSTEM_LIST="
1659     dct
1660     dwt
1661     error_resilience
1662     faan
1663     fast_unaligned
1664     fft
1665     lsp
1666     lzo
1667     mdct
1668     pixelutils
1669     network
1670     rdft
1671 "
1672
1673 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1674 CONFIG_LIST="
1675     $DOCUMENT_LIST
1676     $EXAMPLE_LIST
1677     $EXTERNAL_LIBRARY_LIST
1678     $HWACCEL_LIBRARY_LIST
1679     $FEATURE_LIST
1680     $LICENSE_LIST
1681     $LIBRARY_LIST
1682     $PROGRAM_LIST
1683     $SUBSYSTEM_LIST
1684     fontconfig
1685     memory_poisoning
1686     neon_clobber_test
1687     ossfuzz
1688     pic
1689     thumb
1690     valgrind_backtrace
1691     xmm_clobber_test
1692     $COMPONENT_LIST
1693 "
1694
1695 THREADS_LIST="
1696     pthreads
1697     os2threads
1698     w32threads
1699 "
1700
1701 ATOMICS_LIST="
1702     atomics_gcc
1703     atomics_suncc
1704     atomics_win32
1705 "
1706
1707 AUTODETECT_LIBS="
1708     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1709     $HWACCEL_AUTODETECT_LIBRARY_LIST
1710     $THREADS_LIST
1711 "
1712
1713 ARCH_LIST="
1714     aarch64
1715     alpha
1716     arm
1717     avr32
1718     avr32_ap
1719     avr32_uc
1720     bfin
1721     ia64
1722     m68k
1723     mips
1724     mips64
1725     parisc
1726     ppc
1727     ppc64
1728     s390
1729     sh4
1730     sparc
1731     sparc64
1732     tilegx
1733     tilepro
1734     tomi
1735     x86
1736     x86_32
1737     x86_64
1738 "
1739
1740 ARCH_EXT_LIST_ARM="
1741     armv5te
1742     armv6
1743     armv6t2
1744     armv8
1745     neon
1746     vfp
1747     vfpv3
1748     setend
1749 "
1750
1751 ARCH_EXT_LIST_MIPS="
1752     mipsfpu
1753     mips32r2
1754     mips32r5
1755     mips64r2
1756     mips32r6
1757     mips64r6
1758     mipsdsp
1759     mipsdspr2
1760     msa
1761 "
1762
1763 ARCH_EXT_LIST_LOONGSON="
1764     loongson2
1765     loongson3
1766     mmi
1767 "
1768
1769 ARCH_EXT_LIST_X86_SIMD="
1770     aesni
1771     amd3dnow
1772     amd3dnowext
1773     avx
1774     avx2
1775     fma3
1776     fma4
1777     mmx
1778     mmxext
1779     sse
1780     sse2
1781     sse3
1782     sse4
1783     sse42
1784     ssse3
1785     xop
1786 "
1787
1788 ARCH_EXT_LIST_PPC="
1789     altivec
1790     dcbzl
1791     ldbrx
1792     power8
1793     ppc4xx
1794     vsx
1795 "
1796
1797 ARCH_EXT_LIST_X86="
1798     $ARCH_EXT_LIST_X86_SIMD
1799     cpunop
1800     i686
1801 "
1802
1803 ARCH_EXT_LIST="
1804     $ARCH_EXT_LIST_ARM
1805     $ARCH_EXT_LIST_PPC
1806     $ARCH_EXT_LIST_X86
1807     $ARCH_EXT_LIST_MIPS
1808     $ARCH_EXT_LIST_LOONGSON
1809 "
1810
1811 ARCH_FEATURES="
1812     aligned_stack
1813     fast_64bit
1814     fast_clz
1815     fast_cmov
1816     local_aligned_8
1817     local_aligned_16
1818     local_aligned_32
1819     simd_align_16
1820     simd_align_32
1821 "
1822
1823 BUILTIN_LIST="
1824     atomic_cas_ptr
1825     machine_rw_barrier
1826     MemoryBarrier
1827     mm_empty
1828     rdtsc
1829     sarestart
1830     sem_timedwait
1831     sync_val_compare_and_swap
1832 "
1833 HAVE_LIST_CMDLINE="
1834     inline_asm
1835     symver
1836     x86asm
1837 "
1838
1839 HAVE_LIST_PUB="
1840     bigendian
1841     fast_unaligned
1842 "
1843
1844 HEADERS_LIST="
1845     alsa_asoundlib_h
1846     altivec_h
1847     arpa_inet_h
1848     asm_types_h
1849     cdio_paranoia_h
1850     cdio_paranoia_paranoia_h
1851     cuda_h
1852     d3d11_h
1853     dispatch_dispatch_h
1854     dev_bktr_ioctl_bt848_h
1855     dev_bktr_ioctl_meteor_h
1856     dev_ic_bt8xx_h
1857     dev_video_bktr_ioctl_bt848_h
1858     dev_video_meteor_ioctl_meteor_h
1859     direct_h
1860     dirent_h
1861     dlfcn_h
1862     dxva_h
1863     ES2_gl_h
1864     gsm_h
1865     io_h
1866     mach_mach_time_h
1867     machine_ioctl_bt848_h
1868     machine_ioctl_meteor_h
1869     malloc_h
1870     opencv2_core_core_c_h
1871     openjpeg_2_2_openjpeg_h
1872     openjpeg_2_1_openjpeg_h
1873     openjpeg_2_0_openjpeg_h
1874     openjpeg_1_5_openjpeg_h
1875     OpenGL_gl3_h
1876     poll_h
1877     sndio_h
1878     soundcard_h
1879     stdatomic_h
1880     sys_mman_h
1881     sys_param_h
1882     sys_resource_h
1883     sys_select_h
1884     sys_soundcard_h
1885     sys_time_h
1886     sys_un_h
1887     sys_videoio_h
1888     termios_h
1889     udplite_h
1890     unistd_h
1891     valgrind_valgrind_h
1892     windows_h
1893     winsock2_h
1894 "
1895
1896 INTRINSICS_LIST="
1897     intrinsics_neon
1898 "
1899
1900 COMPLEX_FUNCS="
1901     cabs
1902     cexp
1903 "
1904
1905 MATH_FUNCS="
1906     atanf
1907     atan2f
1908     cbrt
1909     cbrtf
1910     copysign
1911     cosf
1912     erf
1913     exp2
1914     exp2f
1915     expf
1916     hypot
1917     isfinite
1918     isinf
1919     isnan
1920     ldexpf
1921     llrint
1922     llrintf
1923     log2
1924     log2f
1925     log10f
1926     lrint
1927     lrintf
1928     powf
1929     rint
1930     round
1931     roundf
1932     sinf
1933     trunc
1934     truncf
1935 "
1936
1937 SYSTEM_FUNCS="
1938     access
1939     aligned_malloc
1940     arc4random
1941     clock_gettime
1942     closesocket
1943     CommandLineToArgvW
1944     CoTaskMemFree
1945     CryptGenRandom
1946     dlopen
1947     fcntl
1948     flt_lim
1949     fork
1950     getaddrinfo
1951     gethrtime
1952     getopt
1953     GetProcessAffinityMask
1954     GetProcessMemoryInfo
1955     GetProcessTimes
1956     getrusage
1957     GetSystemTimeAsFileTime
1958     gettimeofday
1959     glob
1960     glXGetProcAddress
1961     gmtime_r
1962     inet_aton
1963     isatty
1964     jack_port_get_latency_range
1965     kbhit
1966     LoadLibrary
1967     localtime_r
1968     lstat
1969     lzo1x_999_compress
1970     mach_absolute_time
1971     MapViewOfFile
1972     memalign
1973     mkstemp
1974     mmap
1975     mprotect
1976     nanosleep
1977     PeekNamedPipe
1978     posix_memalign
1979     pthread_cancel
1980     sched_getaffinity
1981     SetConsoleTextAttribute
1982     SetConsoleCtrlHandler
1983     setmode
1984     setrlimit
1985     Sleep
1986     strerror_r
1987     sysconf
1988     sysctl
1989     usleep
1990     UTGetOSTypeFromString
1991     VirtualAlloc
1992     wglGetProcAddress
1993 "
1994
1995 TOOLCHAIN_FEATURES="
1996     as_dn_directive
1997     as_fpu_directive
1998     as_func
1999     as_object_arch
2000     asm_mod_q
2001     attribute_may_alias
2002     attribute_packed
2003     blocks_extension
2004     ebp_available
2005     ebx_available
2006     gnu_as
2007     gnu_windres
2008     ibm_asm
2009     inline_asm_direct_symbol_refs
2010     inline_asm_labels
2011     inline_asm_nonlocal_labels
2012     pragma_deprecated
2013     rsync_contimeout
2014     symver_asm_label
2015     symver_gnu_asm
2016     vfp_args
2017     xform_asm
2018     xmm_clobbers
2019 "
2020
2021 TYPES_LIST="
2022     CONDITION_VARIABLE_Ptr
2023     socklen_t
2024     struct_addrinfo
2025     struct_group_source_req
2026     struct_ip_mreq_source
2027     struct_ipv6_mreq
2028     struct_msghdr_msg_flags
2029     struct_pollfd
2030     struct_rusage_ru_maxrss
2031     struct_sctp_event_subscribe
2032     struct_sockaddr_in6
2033     struct_sockaddr_sa_len
2034     struct_sockaddr_storage
2035     struct_stat_st_mtim_tv_nsec
2036     struct_v4l2_frmivalenum_discrete
2037 "
2038
2039 HAVE_LIST="
2040     $ARCH_EXT_LIST
2041     $(add_suffix _external $ARCH_EXT_LIST)
2042     $(add_suffix _inline   $ARCH_EXT_LIST)
2043     $ARCH_FEATURES
2044     $ATOMICS_LIST
2045     $BUILTIN_LIST
2046     $COMPLEX_FUNCS
2047     $HAVE_LIST_CMDLINE
2048     $HAVE_LIST_PUB
2049     $HEADERS_LIST
2050     $INTRINSICS_LIST
2051     $MATH_FUNCS
2052     $SYSTEM_FUNCS
2053     $THREADS_LIST
2054     $TOOLCHAIN_FEATURES
2055     $TYPES_LIST
2056     alsa
2057     atomics_native
2058     dos_paths
2059     dxva2_lib
2060     dxva2api_cobj
2061     jack
2062     libc_msvcrt
2063     makeinfo
2064     makeinfo_html
2065     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2066     perl
2067     pod2man
2068     sdl2
2069     section_data_rel_ro
2070     sndio
2071     texi2html
2072     threads
2073     vaapi_drm
2074     vaapi_x11
2075     vdpau_x11
2076     winrt
2077 "
2078
2079 # options emitted with CONFIG_ prefix but not available on the command line
2080 CONFIG_EXTRA="
2081     aandcttables
2082     ac3dsp
2083     audio_frame_queue
2084     audiodsp
2085     blockdsp
2086     bswapdsp
2087     cabac
2088     dirac_parse
2089     dvprofile
2090     exif
2091     faandct
2092     faanidct
2093     fdctdsp
2094     flacdsp
2095     fmtconvert
2096     frame_thread_encoder
2097     g722dsp
2098     golomb
2099     gplv3
2100     h263dsp
2101     h264chroma
2102     h264dsp
2103     h264parse
2104     h264pred
2105     h264qpel
2106     hevcparse
2107     hpeldsp
2108     huffman
2109     huffyuvdsp
2110     huffyuvencdsp
2111     idctdsp
2112     iirfilter
2113     mdct15
2114     intrax8
2115     iso_media
2116     ividsp
2117     jpegtables
2118     lgplv3
2119     libx262
2120     llauddsp
2121     llviddsp
2122     llvidencdsp
2123     lpc
2124     lzf
2125     me_cmp
2126     mpeg_er
2127     mpegaudio
2128     mpegaudiodsp
2129     mpegaudioheader
2130     mpegvideo
2131     mpegvideoenc
2132     mss34dsp
2133     pixblockdsp
2134     qpeldsp
2135     qsv
2136     qsvdec
2137     qsvenc
2138     rangecoder
2139     riffdec
2140     riffenc
2141     rtpdec
2142     rtpenc_chain
2143     rv34dsp
2144     sinewin
2145     snappy
2146     srtp
2147     startcode
2148     texturedsp
2149     texturedspenc
2150     tpeldsp
2151     vaapi_encode
2152     vc1dsp
2153     videodsp
2154     vp3dsp
2155     vp56dsp
2156     vp8dsp
2157     vt_bt2020
2158     wma_freqs
2159     wmv2dsp
2160 "
2161
2162 CMDLINE_SELECT="
2163     $ARCH_EXT_LIST
2164     $CONFIG_LIST
2165     $HAVE_LIST_CMDLINE
2166     $THREADS_LIST
2167     asm
2168     cross_compile
2169     debug
2170     extra_warnings
2171     logging
2172     lto
2173     optimizations
2174     rpath
2175     stripping
2176 "
2177
2178 PATHS_LIST="
2179     bindir
2180     datadir
2181     docdir
2182     incdir
2183     libdir
2184     mandir
2185     pkgconfigdir
2186     prefix
2187     shlibdir
2188     install_name_dir
2189 "
2190
2191 CMDLINE_SET="
2192     $PATHS_LIST
2193     ar
2194     arch
2195     as
2196     assert_level
2197     build_suffix
2198     cc
2199     objcc
2200     cpu
2201     cross_prefix
2202     custom_allocator
2203     cxx
2204     dep_cc
2205     doxygen
2206     env
2207     extra_version
2208     gas
2209     host_cc
2210     host_cflags
2211     host_extralibs
2212     host_ld
2213     host_ldflags
2214     host_os
2215     ignore_tests
2216     install
2217     ld
2218     ln_s
2219     logfile
2220     malloc_prefix
2221     nm
2222     optflags
2223     nvccflags
2224     pkg_config
2225     pkg_config_flags
2226     progs_suffix
2227     random_seed
2228     ranlib
2229     samples
2230     strip
2231     sws_max_filter_size
2232     sysinclude
2233     sysroot
2234     target_exec
2235     target_os
2236     target_path
2237     target_samples
2238     tempprefix
2239     toolchain
2240     valgrind
2241     x86asmexe
2242 "
2243
2244 CMDLINE_APPEND="
2245     extra_cflags
2246     extra_cxxflags
2247     extra_objcflags
2248     host_cppflags
2249 "
2250
2251 # code dependency declarations
2252
2253 # architecture extensions
2254
2255 armv5te_deps="arm"
2256 armv6_deps="arm"
2257 armv6t2_deps="arm"
2258 armv8_deps="aarch64"
2259 neon_deps_any="aarch64 arm"
2260 intrinsics_neon_deps="neon"
2261 vfp_deps_any="aarch64 arm"
2262 vfpv3_deps="vfp"
2263 setend_deps="arm"
2264
2265 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2266
2267 loongson2_deps="mips"
2268 loongson3_deps="mips"
2269 mipsfpu_deps="mips"
2270 mipsdsp_deps="mips"
2271 mipsdspr2_deps="mips"
2272 mips32r2_deps="mips"
2273 mips32r5_deps="mips"
2274 mips32r6_deps="mips"
2275 mips64r2_deps="mips"
2276 mips64r6_deps="mips"
2277 msa_deps="mipsfpu"
2278 mmi_deps="mips"
2279
2280 altivec_deps="ppc"
2281 dcbzl_deps="ppc"
2282 ldbrx_deps="ppc"
2283 ppc4xx_deps="ppc"
2284 vsx_deps="altivec"
2285 power8_deps="vsx"
2286
2287 cpunop_deps="i686"
2288 x86_64_select="i686"
2289 x86_64_suggest="fast_cmov"
2290
2291 amd3dnow_deps="mmx"
2292 amd3dnowext_deps="amd3dnow"
2293 i686_deps="x86"
2294 mmx_deps="x86"
2295 mmxext_deps="mmx"
2296 sse_deps="mmxext"
2297 sse2_deps="sse"
2298 sse3_deps="sse2"
2299 ssse3_deps="sse3"
2300 sse4_deps="ssse3"
2301 sse42_deps="sse4"
2302 aesni_deps="sse42"
2303 avx_deps="sse42"
2304 xop_deps="avx"
2305 fma3_deps="avx"
2306 fma4_deps="avx"
2307 avx2_deps="avx"
2308
2309 mmx_external_deps="x86asm"
2310 mmx_inline_deps="inline_asm"
2311 mmx_suggest="mmx_external mmx_inline"
2312
2313 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2314     eval dep=\$${ext}_deps
2315     eval ${ext}_external_deps='"${dep}_external"'
2316     eval ${ext}_inline_deps='"${dep}_inline"'
2317     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2318 done
2319
2320 aligned_stack_if_any="aarch64 ppc x86"
2321 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2322 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2323 fast_unaligned_if_any="aarch64 ppc x86"
2324 simd_align_16_if_any="altivec neon sse"
2325 simd_align_32_if_any="avx"
2326
2327 # system capabilities
2328 symver_if_any="symver_asm_label symver_gnu_asm"
2329 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2330
2331 # threading support
2332 atomics_gcc_if="sync_val_compare_and_swap"
2333 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2334 atomics_win32_if="MemoryBarrier"
2335 atomics_native_if_any="$ATOMICS_LIST"
2336 w32threads_deps="atomics_native"
2337 threads_if_any="$THREADS_LIST"
2338
2339 # subsystems
2340 dct_select="rdft"
2341 dirac_parse_select="golomb"
2342 error_resilience_select="me_cmp"
2343 faandct_deps="faan fdctdsp"
2344 faanidct_deps="faan idctdsp"
2345 h264dsp_select="startcode"
2346 hevcparse_select="golomb"
2347 frame_thread_encoder_deps="encoders threads"
2348 intrax8_select="blockdsp idctdsp"
2349 mdct_select="fft"
2350 mdct15_select="fft"
2351 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2352 mpeg_er_select="error_resilience"
2353 mpegaudio_select="mpegaudiodsp mpegaudioheader"
2354 mpegaudiodsp_select="dct"
2355 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2356 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2357 vc1dsp_select="h264chroma qpeldsp startcode"
2358 rdft_select="fft"
2359
2360 # decoders / encoders
2361 aac_decoder_select="mdct15 mdct sinewin"
2362 aac_fixed_decoder_select="mdct sinewin"
2363 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2364 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2365 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2366 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2367 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2369 adpcm_g722_decoder_select="g722dsp"
2370 adpcm_g722_encoder_select="g722dsp"
2371 aic_decoder_select="golomb idctdsp"
2372 alac_encoder_select="lpc"
2373 als_decoder_select="bswapdsp"
2374 amrnb_decoder_select="lsp"
2375 amrwb_decoder_select="lsp"
2376 amv_decoder_select="sp5x_decoder exif"
2377 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2378 ape_decoder_select="bswapdsp llauddsp"
2379 apng_decoder_select="zlib"
2380 apng_encoder_select="llvidencdsp zlib"
2381 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2382 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2383 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2384 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2385 atrac1_decoder_select="mdct sinewin"
2386 atrac3_decoder_select="mdct"
2387 atrac3p_decoder_select="mdct sinewin"
2388 avrn_decoder_select="exif jpegtables"
2389 bink_decoder_select="blockdsp hpeldsp"
2390 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2391 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2392 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2393 clearvideo_decoder_select="idctdsp"
2394 cllc_decoder_select="bswapdsp"
2395 comfortnoise_encoder_select="lpc"
2396 cook_decoder_select="audiodsp mdct sinewin"
2397 cscd_decoder_select="lzo"
2398 cscd_decoder_suggest="zlib"
2399 dca_decoder_select="mdct"
2400 dds_decoder_select="texturedsp"
2401 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2402 dnxhd_decoder_select="blockdsp idctdsp"
2403 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2404 dvvideo_decoder_select="dvprofile idctdsp"
2405 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2406 dxa_decoder_select="zlib"
2407 dxv_decoder_select="lzf texturedsp"
2408 eac3_decoder_select="ac3_decoder"
2409 eac3_encoder_select="ac3_encoder"
2410 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2411 eatgq_decoder_select="aandcttables"
2412 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2413 exr_decoder_select="zlib"
2414 ffv1_decoder_select="rangecoder"
2415 ffv1_encoder_select="rangecoder"
2416 ffvhuff_decoder_select="huffyuv_decoder"
2417 ffvhuff_encoder_select="huffyuv_encoder"
2418 fic_decoder_select="golomb"
2419 flac_decoder_select="flacdsp"
2420 flac_encoder_select="bswapdsp flacdsp lpc"
2421 flashsv2_decoder_select="zlib"
2422 flashsv2_encoder_select="zlib"
2423 flashsv_decoder_select="zlib"
2424 flashsv_encoder_select="zlib"
2425 flv_decoder_select="h263_decoder"
2426 flv_encoder_select="h263_encoder"
2427 fourxm_decoder_select="blockdsp bswapdsp"
2428 fraps_decoder_select="bswapdsp huffman"
2429 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2430 g729_decoder_select="audiodsp"
2431 h261_decoder_select="mpegvideo"
2432 h261_encoder_select="aandcttables mpegvideoenc"
2433 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2434 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2435 h263i_decoder_select="h263_decoder"
2436 h263p_decoder_select="h263_decoder"
2437 h263p_encoder_select="h263_encoder"
2438 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2439 h264_decoder_suggest="error_resilience"
2440 hap_decoder_select="snappy texturedsp"
2441 hap_encoder_deps="libsnappy"
2442 hap_encoder_select="texturedspenc"
2443 hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
2444 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2445 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2446 iac_decoder_select="imc_decoder"
2447 imc_decoder_select="bswapdsp fft mdct sinewin"
2448 indeo3_decoder_select="hpeldsp"
2449 indeo4_decoder_select="ividsp"
2450 indeo5_decoder_select="ividsp"
2451 interplay_video_decoder_select="hpeldsp"
2452 jpegls_decoder_select="mjpeg_decoder"
2453 jv_decoder_select="blockdsp"
2454 lagarith_decoder_select="llviddsp"
2455 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2456 magicyuv_decoder_select="llviddsp"
2457 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2458 metasound_decoder_select="lsp mdct sinewin"
2459 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2460 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2461 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2462 mjpegb_decoder_select="mjpeg_decoder"
2463 mlp_decoder_select="mlp_parser"
2464 mlp_encoder_select="lpc"
2465 motionpixels_decoder_select="bswapdsp"
2466 mp1_decoder_select="mpegaudio"
2467 mp1float_decoder_select="mpegaudio"
2468 mp2_decoder_select="mpegaudio"
2469 mp2float_decoder_select="mpegaudio"
2470 mp3_decoder_select="mpegaudio"
2471 mp3adu_decoder_select="mpegaudio"
2472 mp3adufloat_decoder_select="mpegaudio"
2473 mp3float_decoder_select="mpegaudio"
2474 mp3on4_decoder_select="mpegaudio"
2475 mp3on4float_decoder_select="mpegaudio"
2476 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2477 mpc8_decoder_select="mpegaudiodsp"
2478 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2479 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2480 mpegvideo_decoder_select="mpegvideo"
2481 mpeg1video_decoder_select="mpegvideo"
2482 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2483 mpeg2video_decoder_select="mpegvideo"
2484 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2485 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2486 mpeg4_encoder_select="h263_encoder"
2487 msa1_decoder_select="mss34dsp"
2488 mscc_decoder_select="zlib"
2489 msmpeg4v1_decoder_select="h263_decoder"
2490 msmpeg4v2_decoder_select="h263_decoder"
2491 msmpeg4v2_encoder_select="h263_encoder"
2492 msmpeg4v3_decoder_select="h263_decoder"
2493 msmpeg4v3_encoder_select="h263_encoder"
2494 mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
2495 mts2_decoder_select="mss34dsp"
2496 mxpeg_decoder_select="mjpeg_decoder"
2497 nellymoser_decoder_select="mdct sinewin"
2498 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2499 nuv_decoder_select="idctdsp lzo"
2500 on2avc_decoder_select="mdct"
2501 opus_decoder_deps="swresample"
2502 opus_decoder_select="mdct15"
2503 opus_encoder_select="audio_frame_queue mdct15"
2504 png_decoder_select="zlib"
2505 png_encoder_select="llvidencdsp zlib"
2506 prores_decoder_select="blockdsp idctdsp"
2507 prores_encoder_select="fdctdsp"
2508 qcelp_decoder_select="lsp"
2509 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2510 ra_144_decoder_select="audiodsp"
2511 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2512 ralf_decoder_select="golomb"
2513 rawvideo_decoder_select="bswapdsp"
2514 rscc_decoder_select="zlib"
2515 rtjpeg_decoder_select="me_cmp"
2516 rv10_decoder_select="h263_decoder"
2517 rv10_encoder_select="h263_encoder"
2518 rv20_decoder_select="h263_decoder"
2519 rv20_encoder_select="h263_encoder"
2520 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2522 screenpresso_decoder_select="zlib"
2523 shorten_decoder_select="bswapdsp"
2524 sipr_decoder_select="lsp"
2525 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2526 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2527 sonic_decoder_select="golomb rangecoder"
2528 sonic_encoder_select="golomb rangecoder"
2529 sonic_ls_encoder_select="golomb rangecoder"
2530 sp5x_decoder_select="mjpeg_decoder"
2531 srgc_decoder_select="zlib"
2532 svq1_decoder_select="hpeldsp"
2533 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2534 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2535 svq3_decoder_suggest="zlib"
2536 tak_decoder_select="audiodsp"
2537 tdsc_decoder_select="zlib mjpeg_decoder"
2538 theora_decoder_select="vp3_decoder"
2539 thp_decoder_select="mjpeg_decoder"
2540 tiff_decoder_suggest="zlib lzma"
2541 tiff_encoder_suggest="zlib"
2542 truehd_decoder_select="mlp_parser"
2543 truehd_encoder_select="lpc"
2544 truemotion2_decoder_select="bswapdsp"
2545 truespeech_decoder_select="bswapdsp"
2546 tscc_decoder_select="zlib"
2547 twinvq_decoder_select="mdct lsp sinewin"
2548 txd_decoder_select="texturedsp"
2549 utvideo_decoder_select="bswapdsp llviddsp"
2550 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2551 vble_decoder_select="llviddsp"
2552 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2553 vc1_qsv_decoder_deps="libmfx"
2554 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2555 vc1image_decoder_select="vc1_decoder"
2556 vorbis_decoder_select="mdct"
2557 vorbis_encoder_select="mdct"
2558 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2559 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2560 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2561 vp6a_decoder_select="vp6_decoder"
2562 vp6f_decoder_select="vp6_decoder"
2563 vp7_decoder_select="h264pred videodsp vp8dsp"
2564 vp8_decoder_select="h264pred videodsp vp8dsp"
2565 vp9_decoder_select="videodsp vp9_parser"
2566 webp_decoder_select="vp8_decoder exif"
2567 wmalossless_decoder_select="llauddsp"
2568 wmapro_decoder_select="mdct sinewin wma_freqs"
2569 wmav1_decoder_select="mdct sinewin wma_freqs"
2570 wmav1_encoder_select="mdct sinewin wma_freqs"
2571 wmav2_decoder_select="mdct sinewin wma_freqs"
2572 wmav2_encoder_select="mdct sinewin wma_freqs"
2573 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2574 wmv1_decoder_select="h263_decoder"
2575 wmv1_encoder_select="h263_encoder"
2576 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2577 wmv2_encoder_select="h263_encoder wmv2dsp"
2578 wmv3_decoder_select="vc1_decoder"
2579 wmv3image_decoder_select="wmv3_decoder"
2580 xma1_decoder_select="wmapro_decoder"
2581 xma2_decoder_select="wmapro_decoder"
2582 zerocodec_decoder_select="zlib"
2583 zlib_decoder_select="zlib"
2584 zlib_encoder_select="zlib"
2585 zmbv_decoder_select="zlib"
2586 zmbv_encoder_select="zlib"
2587
2588 # platform codecs
2589 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2590 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2591
2592 # hardware accelerators
2593 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2594 cuda_deps_any="dlopen LoadLibrary"
2595 cuvid_deps="cuda"
2596 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2597 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2598 dxva2_extralibs="-luser32"
2599 dxva2_lib_deps="dxva2"
2600 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
2601 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2602 vda_deps="vda_framework pthreads"
2603 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2604 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2605 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2606 xvmc_deps="X11_extensions_XvMClib_h"
2607
2608 h263_vaapi_hwaccel_deps="vaapi"
2609 h263_vaapi_hwaccel_select="h263_decoder"
2610 h263_videotoolbox_hwaccel_deps="videotoolbox"
2611 h263_videotoolbox_hwaccel_select="h263_decoder"
2612 h264_cuvid_hwaccel_deps="cuda cuvid"
2613 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2614 h264_d3d11va_hwaccel_deps="d3d11va"
2615 h264_d3d11va_hwaccel_select="h264_decoder"
2616 h264_dxva2_hwaccel_deps="dxva2"
2617 h264_dxva2_hwaccel_select="h264_decoder"
2618 h264_mediacodec_hwaccel_deps="mediacodec"
2619 h264_mmal_hwaccel_deps="mmal"
2620 h264_qsv_hwaccel_deps="libmfx"
2621 h264_vaapi_hwaccel_deps="vaapi"
2622 h264_vaapi_hwaccel_select="h264_decoder"
2623 h264_vda_hwaccel_deps="vda"
2624 h264_vda_hwaccel_select="h264_decoder"
2625 h264_vda_old_hwaccel_deps="vda"
2626 h264_vda_old_hwaccel_select="h264_decoder"
2627 h264_vdpau_hwaccel_deps="vdpau"
2628 h264_vdpau_hwaccel_select="h264_decoder"
2629 h264_videotoolbox_hwaccel_deps="videotoolbox"
2630 h264_videotoolbox_hwaccel_select="h264_decoder"
2631 hevc_cuvid_hwaccel_deps="cuda cuvid"
2632 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2633 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2634 hevc_d3d11va_hwaccel_select="hevc_decoder"
2635 hevc_mediacodec_hwaccel_deps="mediacodec"
2636 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2637 hevc_dxva2_hwaccel_select="hevc_decoder"
2638 hevc_qsv_hwaccel_deps="libmfx"
2639 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2640 hevc_vaapi_hwaccel_select="hevc_decoder"
2641 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2642 hevc_vdpau_hwaccel_select="hevc_decoder"
2643 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2644 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2645 mpeg_xvmc_hwaccel_deps="xvmc"
2646 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2647 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2648 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2649 mpeg1_vdpau_hwaccel_deps="vdpau"
2650 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2651 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2652 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2653 mpeg1_xvmc_hwaccel_deps="xvmc"
2654 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2655 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2656 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2657 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2658 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2659 mpeg2_dxva2_hwaccel_deps="dxva2"
2660 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2661 mpeg2_mediacodec_hwaccel_deps="mediacodec"
2662 mpeg2_mmal_hwaccel_deps="mmal"
2663 mpeg2_qsv_hwaccel_deps="libmfx"
2664 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2665 mpeg2_vaapi_hwaccel_deps="vaapi"
2666 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2667 mpeg2_vdpau_hwaccel_deps="vdpau"
2668 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2669 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2670 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2671 mpeg2_xvmc_hwaccel_deps="xvmc"
2672 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2673 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2674 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2675 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2676 mpeg4_mmal_hwaccel_deps="mmal"
2677 mpeg4_vaapi_hwaccel_deps="vaapi"
2678 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2679 mpeg4_vdpau_hwaccel_deps="vdpau"
2680 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2681 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2682 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2683 vc1_cuvid_hwaccel_deps="cuda cuvid"
2684 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2685 vc1_d3d11va_hwaccel_deps="d3d11va"
2686 vc1_d3d11va_hwaccel_select="vc1_decoder"
2687 vc1_dxva2_hwaccel_deps="dxva2"
2688 vc1_dxva2_hwaccel_select="vc1_decoder"
2689 vc1_mmal_hwaccel_deps="mmal"
2690 vc1_qsv_hwaccel_deps="libmfx"
2691 vc1_qsv_hwaccel_select="qsvdec_vc1"
2692 vc1_vaapi_hwaccel_deps="vaapi"
2693 vc1_vaapi_hwaccel_select="vc1_decoder"
2694 vc1_vdpau_hwaccel_deps="vdpau"
2695 vc1_vdpau_hwaccel_select="vc1_decoder"
2696 vp8_cuvid_hwaccel_deps="cuda cuvid"
2697 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2698 vp9_cuvid_hwaccel_deps="cuda cuvid"
2699 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2700 vp8_mediacodec_hwaccel_deps="mediacodec"
2701 vp8_qsv_hwaccel_deps="libmfx"
2702 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2703 vp9_d3d11va_hwaccel_select="vp9_decoder"
2704 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2705 vp9_dxva2_hwaccel_select="vp9_decoder"
2706 vp9_mediacodec_hwaccel_deps="mediacodec"
2707 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2708 vp9_vaapi_hwaccel_select="vp9_decoder"
2709 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2710 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2711 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2712 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2713
2714 # hardware-accelerated codecs
2715 omx_deps="dlopen pthreads"
2716 omx_extralibs='$ldl'
2717 omx_rpi_select="omx"
2718 qsvdec_select="qsv"
2719 qsvenc_select="qsv"
2720 vaapi_encode_deps="vaapi"
2721
2722 hwupload_cuda_filter_deps="cuda"
2723 scale_npp_filter_deps="cuda libnpp"
2724 scale_cuda_filter_deps="cuda_sdk"
2725
2726 nvenc_deps="cuda"
2727 nvenc_deps_any="dlopen LoadLibrary"
2728 nvenc_encoder_deps="nvenc"
2729
2730 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2731 h264_cuvid_decoder_deps="cuda cuvid"
2732 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2733 h264_mediacodec_decoder_deps="mediacodec"
2734 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2735 h264_mmal_decoder_deps="mmal"
2736 h264_nvenc_encoder_deps="nvenc"
2737 h264_omx_encoder_deps="omx"
2738 h264_qsv_decoder_deps="libmfx"
2739 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2740 h264_qsv_encoder_deps="libmfx"
2741 h264_qsv_encoder_select="qsvenc"
2742 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2743 h264_vaapi_encoder_select="vaapi_encode golomb"
2744 h264_vda_decoder_deps="vda"
2745 h264_vda_decoder_select="h264_decoder"
2746 h264_vdpau_decoder_deps="vdpau"
2747 h264_vdpau_decoder_select="h264_decoder"
2748 hevc_cuvid_decoder_deps="cuda cuvid"
2749 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2750 hevc_mediacodec_decoder_deps="mediacodec"
2751 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2752 hevc_nvenc_encoder_deps="nvenc"
2753 hevc_qsv_decoder_deps="libmfx"
2754 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2755 hevc_qsv_encoder_deps="libmfx"
2756 hevc_qsv_encoder_select="hevcparse qsvenc"
2757 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2758 hevc_vaapi_encoder_select="vaapi_encode golomb"
2759 mjpeg_cuvid_decoder_deps="cuda cuvid"
2760 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2761 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2762 mpeg1_cuvid_decoder_deps="cuda cuvid"
2763 mpeg1_vdpau_decoder_deps="vdpau"
2764 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2765 mpeg2_crystalhd_decoder_select="crystalhd"
2766 mpeg2_cuvid_decoder_deps="cuda cuvid"
2767 mpeg2_mmal_decoder_deps="mmal"
2768 mpeg2_mediacodec_decoder_deps="mediacodec"
2769 mpeg2_qsv_decoder_deps="libmfx"
2770 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2771 mpeg2_qsv_encoder_deps="libmfx"
2772 mpeg2_qsv_encoder_select="qsvenc"
2773 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2774 mpeg2_vaapi_encoder_select="vaapi_encode"
2775 mpeg4_crystalhd_decoder_select="crystalhd"
2776 mpeg4_cuvid_decoder_deps="cuda cuvid"
2777 mpeg4_mediacodec_decoder_deps="mediacodec"
2778 mpeg4_mmal_decoder_deps="mmal"
2779 mpeg4_omx_encoder_deps="omx"
2780 mpeg4_vdpau_decoder_deps="vdpau"
2781 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2782 mpeg_vdpau_decoder_deps="vdpau"
2783 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2784 msmpeg4_crystalhd_decoder_select="crystalhd"
2785 nvenc_h264_encoder_select="h264_nvenc_encoder"
2786 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2787 vc1_crystalhd_decoder_select="crystalhd"
2788 vc1_cuvid_decoder_deps="cuda cuvid"
2789 vc1_mmal_decoder_deps="mmal"
2790 vc1_vdpau_decoder_deps="vdpau"
2791 vc1_vdpau_decoder_select="vc1_decoder"
2792 vp8_cuvid_decoder_deps="cuda cuvid"
2793 vp8_mediacodec_decoder_deps="mediacodec"
2794 vp8_qsv_decoder_deps="libmfx"
2795 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2796 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2797 vp8_vaapi_encoder_select="vaapi_encode"
2798 vp9_cuvid_decoder_deps="cuda cuvid"
2799 vp9_mediacodec_decoder_deps="mediacodec"
2800 wmv3_crystalhd_decoder_select="crystalhd"
2801 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2802
2803 # parsers
2804 h264_parser_select="golomb h264dsp h264parse"
2805 hevc_parser_select="hevcparse"
2806 mpegaudio_parser_select="mpegaudioheader"
2807 mpegvideo_parser_select="mpegvideo"
2808 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2809 vc1_parser_select="vc1dsp"
2810
2811 # bitstream_filters
2812 mjpeg2jpeg_bsf_select="jpegtables"
2813
2814 # external libraries
2815 aac_at_decoder_deps="audiotoolbox"
2816 ac3_at_decoder_deps="audiotoolbox"
2817 ac3_at_decoder_select="ac3_parser"
2818 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2819 alac_at_decoder_deps="audiotoolbox"
2820 amr_nb_at_decoder_deps="audiotoolbox"
2821 avisynth_deps_any="dlopen LoadLibrary"
2822 avisynth_demuxer_deps="avisynth"
2823 avisynth_demuxer_select="riffdec"
2824 eac3_at_decoder_deps="audiotoolbox"
2825 eac3_at_decoder_select="ac3_parser"
2826 gsm_ms_at_decoder_deps="audiotoolbox"
2827 ilbc_at_decoder_deps="audiotoolbox"
2828 mp1_at_decoder_deps="audiotoolbox"
2829 mp2_at_decoder_deps="audiotoolbox"
2830 mp3_at_decoder_deps="audiotoolbox"
2831 mp1_at_decoder_select="mpegaudioheader"
2832 mp2_at_decoder_select="mpegaudioheader"
2833 mp3_at_decoder_select="mpegaudioheader"
2834 pcm_alaw_at_decoder_deps="audiotoolbox"
2835 pcm_mulaw_at_decoder_deps="audiotoolbox"
2836 qdmc_at_decoder_deps="audiotoolbox"
2837 qdm2_at_decoder_deps="audiotoolbox"
2838 aac_at_encoder_deps="audiotoolbox"
2839 aac_at_encoder_select="audio_frame_queue"
2840 alac_at_encoder_deps="audiotoolbox"
2841 alac_at_encoder_select="audio_frame_queue"
2842 ilbc_at_encoder_deps="audiotoolbox"
2843 ilbc_at_encoder_select="audio_frame_queue"
2844 pcm_alaw_at_encoder_deps="audiotoolbox"
2845 pcm_alaw_at_encoder_select="audio_frame_queue"
2846 pcm_mulaw_at_encoder_deps="audiotoolbox"
2847 pcm_mulaw_at_encoder_select="audio_frame_queue"
2848 chromaprint_muxer_deps="chromaprint"
2849 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2850 libcelt_decoder_deps="libcelt"
2851 libfdk_aac_decoder_deps="libfdk_aac"
2852 libfdk_aac_encoder_deps="libfdk_aac"
2853 libfdk_aac_encoder_select="audio_frame_queue"
2854 libgme_demuxer_deps="libgme"
2855 libgsm_decoder_deps="libgsm"
2856 libgsm_encoder_deps="libgsm"
2857 libgsm_ms_decoder_deps="libgsm"
2858 libgsm_ms_encoder_deps="libgsm"
2859 libilbc_decoder_deps="libilbc"
2860 libilbc_encoder_deps="libilbc"
2861 libkvazaar_encoder_deps="libkvazaar"
2862 libmodplug_demuxer_deps="libmodplug"
2863 libmp3lame_encoder_deps="libmp3lame"
2864 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2865 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2866 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2867 libopencore_amrnb_encoder_select="audio_frame_queue"
2868 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2869 libopenh264_decoder_deps="libopenh264"
2870 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2871 libopenh264_encoder_deps="libopenh264"
2872 libopenjpeg_decoder_deps="libopenjpeg"
2873 libopenjpeg_encoder_deps="libopenjpeg"
2874 libopenmpt_demuxer_deps="libopenmpt"
2875 libopus_decoder_deps="libopus"
2876 libopus_encoder_deps="libopus"
2877 libopus_encoder_select="audio_frame_queue"
2878 librsvg_decoder_deps="librsvg"
2879 libshine_encoder_deps="libshine"
2880 libshine_encoder_select="audio_frame_queue"
2881 libspeex_decoder_deps="libspeex"
2882 libspeex_encoder_deps="libspeex"
2883 libspeex_encoder_select="audio_frame_queue"
2884 libtheora_encoder_deps="libtheora"
2885 libtwolame_encoder_deps="libtwolame"
2886 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2887 libvorbis_decoder_deps="libvorbis"
2888 libvorbis_encoder_deps="libvorbis"
2889 libvorbis_encoder_select="audio_frame_queue"
2890 libvpx_vp8_decoder_deps="libvpx"
2891 libvpx_vp8_encoder_deps="libvpx"
2892 libvpx_vp9_decoder_deps="libvpx"
2893 libvpx_vp9_encoder_deps="libvpx"
2894 libwavpack_encoder_deps="libwavpack"
2895 libwavpack_encoder_select="audio_frame_queue"
2896 libwebp_encoder_deps="libwebp"
2897 libwebp_anim_encoder_deps="libwebp"
2898 libx262_encoder_deps="libx262"
2899 libx264_encoder_deps="libx264"
2900 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2901 libx264rgb_encoder_select="libx264_encoder"
2902 libx265_encoder_deps="libx265"
2903 libxavs_encoder_deps="libxavs"
2904 libxvid_encoder_deps="libxvid"
2905 libzvbi_teletext_decoder_deps="libzvbi"
2906 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2907 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2908 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2909 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2910 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2911
2912 # demuxers / muxers
2913 ac3_demuxer_select="ac3_parser"
2914 aiff_muxer_select="iso_media"
2915 asf_demuxer_select="riffdec"
2916 asf_o_demuxer_select="riffdec"
2917 asf_muxer_select="riffenc"
2918 asf_stream_muxer_select="asf_muxer"
2919 avi_demuxer_select="iso_media riffdec exif"
2920 avi_muxer_select="riffenc"
2921 caf_demuxer_select="iso_media riffdec"
2922 caf_muxer_select="iso_media"
2923 dash_muxer_select="mp4_muxer"
2924 dirac_demuxer_select="dirac_parser"
2925 dts_demuxer_select="dca_parser"
2926 dtshd_demuxer_select="dca_parser"
2927 dv_demuxer_select="dvprofile"
2928 dv_muxer_select="dvprofile"
2929 dxa_demuxer_select="riffdec"
2930 eac3_demuxer_select="ac3_parser"
2931 f4v_muxer_select="mov_muxer"
2932 fifo_muxer_deps="threads"
2933 flac_demuxer_select="flac_parser"
2934 hds_muxer_select="flv_muxer"
2935 hls_muxer_select="mpegts_muxer"
2936 image2_alias_pix_demuxer_select="image2_demuxer"
2937 image2_brender_pix_demuxer_select="image2_demuxer"
2938 ipod_muxer_select="mov_muxer"
2939 ismv_muxer_select="mov_muxer"
2940 matroska_audio_muxer_select="matroska_muxer"
2941 matroska_demuxer_select="iso_media riffdec"
2942 matroska_demuxer_suggest="bzlib lzo zlib"
2943 matroska_muxer_select="iso_media riffenc"
2944 mmf_muxer_select="riffenc"
2945 mov_demuxer_select="iso_media riffdec"
2946 mov_demuxer_suggest="zlib"
2947 mov_muxer_select="iso_media riffenc rtpenc_chain"
2948 mp3_demuxer_select="mpegaudio_parser"
2949 mp3_muxer_select="mpegaudioheader"
2950 mp4_muxer_select="mov_muxer"
2951 mpegts_demuxer_select="iso_media"
2952 mpegts_muxer_select="adts_muxer latm_muxer"
2953 mpegtsraw_demuxer_select="mpegts_demuxer"
2954 mxf_d10_muxer_select="mxf_muxer"
2955 mxf_opatom_muxer_select="mxf_muxer"
2956 nut_muxer_select="riffenc"
2957 nuv_demuxer_select="riffdec"
2958 oga_muxer_select="ogg_muxer"
2959 ogg_demuxer_select="dirac_parse"
2960 ogv_muxer_select="ogg_muxer"
2961 opus_muxer_select="ogg_muxer"
2962 psp_muxer_select="mov_muxer"
2963 rtp_demuxer_select="sdp_demuxer"
2964 rtp_muxer_select="golomb"
2965 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2966 rtsp_demuxer_select="http_protocol rtpdec"
2967 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2968 sap_demuxer_select="sdp_demuxer"
2969 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2970 sdp_demuxer_select="rtpdec"
2971 smoothstreaming_muxer_select="ismv_muxer"
2972 spdif_muxer_select="aac_parser"
2973 spx_muxer_select="ogg_muxer"
2974 swf_demuxer_suggest="zlib"
2975 tak_demuxer_select="tak_parser"
2976 tg2_muxer_select="mov_muxer"
2977 tgp_muxer_select="mov_muxer"
2978 vobsub_demuxer_select="mpegps_demuxer"
2979 w64_demuxer_select="wav_demuxer"
2980 w64_muxer_select="wav_muxer"
2981 wav_demuxer_select="riffdec"
2982 wav_muxer_select="riffenc"
2983 webm_muxer_select="iso_media riffenc"
2984 webm_dash_manifest_demuxer_select="matroska_demuxer"
2985 wtv_demuxer_select="mpegts_demuxer riffdec"
2986 wtv_muxer_select="mpegts_muxer riffenc"
2987 xmv_demuxer_select="riffdec"
2988 xwma_demuxer_select="riffdec"
2989
2990 # indevs / outdevs
2991 alsa_indev_deps="alsa"
2992 alsa_outdev_deps="alsa"
2993 avfoundation_indev_deps="pthreads"
2994 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2995 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2996 caca_outdev_deps="libcaca"
2997 decklink_indev_deps="decklink threads"
2998 decklink_indev_extralibs="-lstdc++"
2999 decklink_outdev_deps="decklink threads"
3000 decklink_outdev_extralibs="-lstdc++"
3001 dshow_indev_deps="IBaseFilter"
3002 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3003 dv1394_indev_deps="dv1394"
3004 dv1394_indev_select="dv_demuxer"
3005 fbdev_indev_deps="linux_fb_h"
3006 fbdev_outdev_deps="linux_fb_h"
3007 gdigrab_indev_deps="CreateDIBSection"
3008 gdigrab_indev_extralibs="-lgdi32"
3009 gdigrab_indev_select="bmp_decoder"
3010 iec61883_indev_deps="libiec61883"
3011 jack_indev_deps="jack"
3012 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3013 lavfi_indev_deps="avfilter"
3014 libcdio_indev_deps="libcdio"
3015 libdc1394_indev_deps="libdc1394"
3016 libv4l2_indev_deps="libv4l2"
3017 openal_indev_deps="openal"
3018 opengl_outdev_deps="opengl"
3019 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3020 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3021 pulse_indev_deps="libpulse"
3022 pulse_outdev_deps="libpulse"
3023 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3024 qtkit_indev_select="qtkit"
3025 sdl2_outdev_deps="sdl2"
3026 sndio_indev_deps="sndio"
3027 sndio_outdev_deps="sndio"
3028 v4l_indev_deps="linux_videodev_h"
3029 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3030 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3031 vfwcap_indev_deps="vfw32 vfwcap_defines"
3032 xcbgrab_indev_deps="libxcb"
3033 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3034 xv_outdev_extralibs="-lXv -lX11 -lXext"
3035
3036 # protocols
3037 async_protocol_deps="threads"
3038 bluray_protocol_deps="libbluray"
3039 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3040 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3041 ffrtmpcrypt_protocol_select="tcp_protocol"
3042 ffrtmphttp_protocol_deps="!librtmp_protocol"
3043 ffrtmphttp_protocol_select="http_protocol"
3044 ftp_protocol_select="tcp_protocol"
3045 gopher_protocol_select="network"
3046 http_protocol_select="tcp_protocol"
3047 httpproxy_protocol_select="tcp_protocol"
3048 https_protocol_select="tls_protocol"
3049 icecast_protocol_select="http_protocol"
3050 librtmp_protocol_deps="librtmp"
3051 librtmpe_protocol_deps="librtmp"
3052 librtmps_protocol_deps="librtmp"
3053 librtmpt_protocol_deps="librtmp"
3054 librtmpte_protocol_deps="librtmp"
3055 libsmbclient_protocol_deps="libsmbclient gplv3"
3056 libssh_protocol_deps="libssh"
3057 mmsh_protocol_select="http_protocol"
3058 mmst_protocol_select="network"
3059 rtmp_protocol_deps="!librtmp_protocol"
3060 rtmp_protocol_select="tcp_protocol"
3061 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3062 rtmps_protocol_deps="!librtmp_protocol"
3063 rtmps_protocol_select="tls_protocol"
3064 rtmpt_protocol_select="ffrtmphttp_protocol"
3065 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3066 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3067 rtp_protocol_select="udp_protocol"
3068 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3069 sctp_protocol_select="network"
3070 srtp_protocol_select="rtp_protocol srtp"
3071 tcp_protocol_select="network"
3072 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3073 tls_gnutls_protocol_select="tcp_protocol"
3074 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3075 tls_openssl_protocol_select="tcp_protocol"
3076 tls_schannel_protocol_deps="schannel"
3077 tls_schannel_protocol_select="tcp_protocol"
3078 tls_securetransport_protocol_deps="securetransport"
3079 tls_securetransport_protocol_select="tcp_protocol"
3080 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3081 udp_protocol_select="network"
3082 udplite_protocol_select="network"
3083 unix_protocol_deps="sys_un_h"
3084 unix_protocol_select="network"
3085
3086 # filters
3087 afftfilt_filter_deps="avcodec"
3088 afftfilt_filter_select="fft"
3089 afir_filter_deps="avcodec"
3090 afir_filter_select="fft"
3091 amovie_filter_deps="avcodec avformat"
3092 aresample_filter_deps="swresample"
3093 ass_filter_deps="libass"
3094 atempo_filter_deps="avcodec"
3095 atempo_filter_select="rdft"
3096 azmq_filter_deps="libzmq"
3097 blackframe_filter_deps="gpl"
3098 boxblur_filter_deps="gpl"
3099 bs2b_filter_deps="libbs2b"
3100 colormatrix_filter_deps="gpl"
3101 cover_rect_filter_deps="avcodec avformat gpl"
3102 cropdetect_filter_deps="gpl"
3103 deinterlace_qsv_filter_deps="libmfx"
3104 deinterlace_vaapi_filter_deps="vaapi"
3105 delogo_filter_deps="gpl"
3106 deshake_filter_select="pixelutils"
3107 drawtext_filter_deps="libfreetype"
3108 elbg_filter_deps="avcodec"
3109 eq_filter_deps="gpl"
3110 fftfilt_filter_deps="avcodec"
3111 fftfilt_filter_select="rdft"
3112 find_rect_filter_deps="avcodec avformat gpl"
3113 firequalizer_filter_deps="avcodec"
3114 firequalizer_filter_select="rdft"
3115 flite_filter_deps="libflite"
3116 framerate_filter_select="pixelutils"
3117 frei0r_filter_deps="frei0r dlopen"
3118 frei0r_src_filter_deps="frei0r dlopen"
3119 fspp_filter_deps="gpl"
3120 geq_filter_deps="gpl"
3121 histeq_filter_deps="gpl"
3122 hqdn3d_filter_deps="gpl"
3123 interlace_filter_deps="gpl"
3124 kerndeint_filter_deps="gpl"
3125 ladspa_filter_deps="ladspa dlopen"
3126 mcdeint_filter_deps="avcodec gpl"
3127 movie_filter_deps="avcodec avformat"
3128 mpdecimate_filter_deps="gpl"
3129 mpdecimate_filter_select="pixelutils"
3130 mptestsrc_filter_deps="gpl"
3131 negate_filter_deps="lut_filter"
3132 nnedi_filter_deps="gpl"
3133 ocr_filter_deps="libtesseract"
3134 ocv_filter_deps="libopencv"
3135 owdenoise_filter_deps="gpl"
3136 pan_filter_deps="swresample"
3137 perspective_filter_deps="gpl"
3138 phase_filter_deps="gpl"
3139 pp7_filter_deps="gpl"
3140 pp_filter_deps="gpl postproc"
3141 pullup_filter_deps="gpl"
3142 removelogo_filter_deps="avcodec avformat swscale"
3143 repeatfields_filter_deps="gpl"
3144 resample_filter_deps="avresample"
3145 rubberband_filter_deps="librubberband"
3146 sab_filter_deps="gpl swscale"
3147 scale2ref_filter_deps="swscale"
3148 scale_filter_deps="swscale"
3149 scale_qsv_filter_deps="libmfx"
3150 select_filter_select="pixelutils"
3151 showcqt_filter_deps="avcodec avformat swscale"
3152 showcqt_filter_select="fft"
3153 showfreqs_filter_deps="avcodec"
3154 showfreqs_filter_select="fft"
3155 showspectrum_filter_deps="avcodec"
3156 showspectrum_filter_select="fft"
3157 showspectrumpic_filter_deps="avcodec"
3158 showspectrumpic_filter_select="fft"
3159 signature_filter_deps="gpl avcodec avformat"
3160 smartblur_filter_deps="gpl swscale"
3161 sofalizer_filter_deps="libmysofa avcodec"
3162 sofalizer_filter_select="fft"
3163 spectrumsynth_filter_deps="avcodec"
3164 spectrumsynth_filter_select="fft"
3165 spp_filter_deps="gpl avcodec"
3166 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3167 stereo3d_filter_deps="gpl"
3168 subtitles_filter_deps="avformat avcodec libass"
3169 super2xsai_filter_deps="gpl"
3170 pixfmts_super2xsai_test_deps="super2xsai_filter"
3171 tinterlace_filter_deps="gpl"
3172 tinterlace_merge_test_deps="tinterlace_filter"
3173 tinterlace_pad_test_deps="tinterlace_filter"
3174 uspp_filter_deps="gpl avcodec"
3175 vaguedenoiser_filter_deps="gpl"
3176 vidstabdetect_filter_deps="libvidstab"
3177 vidstabtransform_filter_deps="libvidstab"
3178 zmq_filter_deps="libzmq"
3179 zoompan_filter_deps="swscale"
3180 zscale_filter_deps="libzimg"
3181 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3182
3183 # examples
3184 avio_dir_cmd_deps="avformat avutil"
3185 avio_reading_deps="avformat avcodec avutil"
3186 decode_audio_example_deps="avcodec avutil"
3187 decode_video_example_deps="avcodec avutil"
3188 demuxing_decoding_example_deps="avcodec avformat avutil"
3189 encode_audio_example_deps="avcodec avutil"
3190 encode_video_example_deps="avcodec avutil"
3191 extract_mvs_example_deps="avcodec avformat avutil"
3192 filter_audio_example_deps="avfilter avutil"
3193 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3194 filtering_video_example_deps="avfilter avcodec avformat avutil"
3195 http_multiclient_example_deps="avformat avutil fork"
3196 metadata_example_deps="avformat avutil"
3197 muxing_example_deps="avcodec avformat avutil swscale"
3198 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3199 remuxing_example_deps="avcodec avformat avutil"
3200 resampling_audio_example_deps="avutil swresample"
3201 scaling_video_example_deps="avutil swscale"
3202 transcode_aac_example_deps="avcodec avformat swresample"
3203 transcoding_example_deps="avfilter avcodec avformat avutil"
3204
3205 # libraries, in linking order
3206 avcodec_deps="avutil"
3207 avcodec_select="null_bsf"
3208 avdevice_deps="avformat avcodec avutil"
3209 avfilter_deps="avutil"
3210 avformat_deps="avcodec avutil"
3211 avresample_deps="avutil"
3212 postproc_deps="avutil gpl"
3213 swresample_deps="avutil"
3214 swscale_deps="avutil"
3215
3216 # programs
3217 ffmpeg_deps="avcodec avfilter avformat swresample"
3218 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3219                null_filter
3220                trim_filter"
3221 ffplay_deps="avcodec avformat swscale swresample sdl2"
3222 ffplay_extralibs='$sdl2_extralibs'
3223 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3224 ffprobe_deps="avcodec avformat"
3225 ffserver_deps="avformat fork sarestart"
3226 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3227
3228 # documentation
3229 podpages_deps="perl"
3230 manpages_deps="perl pod2man"
3231 htmlpages_deps="perl"
3232 htmlpages_deps_any="makeinfo_html texi2html"
3233 txtpages_deps="perl makeinfo"
3234 doc_deps_any="manpages htmlpages podpages txtpages"
3235
3236 # default parameters
3237
3238 logfile="ffbuild/config.log"
3239
3240 # installation paths
3241 prefix_default="/usr/local"
3242 bindir_default='${prefix}/bin'
3243 datadir_default='${prefix}/share/ffmpeg'
3244 docdir_default='${prefix}/share/doc/ffmpeg'
3245 incdir_default='${prefix}/include'
3246 libdir_default='${prefix}/lib'
3247 mandir_default='${prefix}/share/man'
3248
3249 # toolchain
3250 ar_default="ar"
3251 cc_default="gcc"
3252 cxx_default="g++"
3253 host_cc_default="gcc"
3254 doxygen_default="doxygen"
3255 install="install"
3256 ln_s_default="ln -s -f"
3257 nm_default="nm -g"
3258 pkg_config_default=pkg-config
3259 ranlib_default="ranlib"
3260 strip_default="strip"
3261 version_script='--version-script'
3262 x86asmexe_default="nasm"
3263 windres_default="windres"
3264 nvcc_default="nvcc"
3265 nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
3266
3267 # OS
3268 target_os_default=$(tolower $(uname -s))
3269 host_os=$target_os_default
3270
3271 # machine
3272 if test "$target_os_default" = aix; then
3273     arch_default=$(uname -p)
3274     strip_default="strip -X32_64"
3275 else
3276     arch_default=$(uname -m)
3277 fi
3278 cpu="generic"
3279 intrinsics="none"
3280
3281 # configurable options
3282 enable $PROGRAM_LIST
3283 enable $DOCUMENT_LIST
3284 enable $EXAMPLE_LIST
3285 enable $(filter_out avresample $LIBRARY_LIST)
3286 enable stripping
3287
3288 enable asm
3289 enable debug
3290 enable doc
3291 enable faan faandct faanidct
3292 enable optimizations
3293 enable runtime_cpudetect
3294 enable safe_bitstream_reader
3295 enable static
3296 enable swscale_alpha
3297 enable valgrind_backtrace
3298
3299 sws_max_filter_size_default=256
3300 set_default sws_max_filter_size
3301
3302 # build settings
3303 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3304 LIBPREF="lib"
3305 LIBSUF=".a"
3306 FULLNAME='$(NAME)$(BUILDSUF)'
3307 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3308 SLIBPREF="lib"
3309 SLIBSUF=".so"
3310 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3311 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3312 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3313 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3314 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3315 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3316 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3317
3318 asflags_filter=echo
3319 cflags_filter=echo
3320 ldflags_filter=echo
3321
3322 AS_C='-c'
3323 AS_O='-o $@'
3324 CC_C='-c'
3325 CC_E='-E -o $@'
3326 CC_O='-o $@'
3327 CXX_C='-c'
3328 CXX_O='-o $@'
3329 OBJCC_C='-c'
3330 OBJCC_E='-E -o $@'
3331 OBJCC_O='-o $@'
3332 X86ASM_O='-o $@'
3333 LD_O='-o $@'
3334 LD_LIB='-l%'
3335 LD_PATH='-L'
3336 HOSTCC_C='-c'
3337 HOSTCC_E='-E -o $@'
3338 HOSTCC_O='-o $@'
3339 HOSTLD_O='-o $@'
3340 NVCC_C='-c'
3341 NVCC_O='-o $@'
3342
3343 host_extralibs='-lm'
3344 host_cflags_filter=echo
3345 host_ldflags_filter=echo
3346
3347 target_path='$(CURDIR)'
3348
3349 # since the object filename is not given with the -MM flag, the compiler
3350 # is only able to print the basename, and we must add the path ourselves
3351 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3352 DEPFLAGS='-MM'
3353
3354 mkdir -p ffbuild
3355
3356 # find source path
3357 if test -f configure; then
3358     source_path=.
3359 else
3360     source_path=$(cd $(dirname "$0"); pwd)
3361     case "$source_path" in
3362         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3363     esac
3364     test -e "$source_path/config.h" &&
3365         die "Out of tree builds are impossible with config.h in source dir."
3366 fi
3367
3368 for v in "$@"; do
3369     r=${v#*=}
3370     l=${v%"$r"}
3371     r=$(sh_quote "$r")
3372     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3373 done
3374
3375 find_things(){
3376     thing=$1
3377     pattern=$2
3378     file=$source_path/$3
3379     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3380 }
3381
3382 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3383 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3384 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3385 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3386 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3387 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3388 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3389 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3390 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3391
3392 find_things_extern(){
3393     thing=$1
3394     pattern=$2
3395     file=$source_path/$3
3396     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3397 }
3398
3399 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3400 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3401
3402 ALL_COMPONENTS="
3403     $BSF_LIST
3404     $DECODER_LIST
3405     $DEMUXER_LIST
3406     $ENCODER_LIST
3407     $FILTER_LIST
3408     $HWACCEL_LIST
3409     $INDEV_LIST
3410     $MUXER_LIST
3411     $OUTDEV_LIST
3412     $PARSER_LIST
3413     $PROTOCOL_LIST
3414 "
3415
3416 for n in $COMPONENT_LIST; do
3417     v=$(toupper ${n%s})_LIST
3418     eval enable \$$v
3419     eval ${n}_if_any="\$$v"
3420 done
3421
3422 enable $ARCH_EXT_LIST
3423
3424 die_unknown(){
3425     echo "Unknown option \"$1\"."
3426     echo "See $0 --help for available options."
3427     exit 1
3428 }
3429
3430 print_in_columns() {
3431     cols=$(expr $ncols / 24)
3432     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3433 }
3434
3435 show_list() {
3436     suffix=_$1
3437     shift
3438     echo $* | sed s/$suffix//g | print_in_columns
3439     exit 0
3440 }
3441
3442 rand_list(){
3443     IFS=', '
3444     set -- $*
3445     unset IFS
3446     for thing; do
3447         comp=${thing%:*}
3448         prob=${thing#$comp}
3449         prob=${prob#:}
3450         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3451         echo "prob ${prob:-0.5}"
3452         printf '%s\n' $comp
3453     done
3454 }
3455
3456 do_random(){
3457     action=$1
3458     shift
3459     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3460     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3461 }
3462
3463 for opt do
3464     optval="${opt#*=}"
3465     case "$opt" in
3466         --extra-ldflags=*)
3467             add_ldflags $optval
3468         ;;
3469         --extra-ldexeflags=*)
3470             add_ldexeflags $optval
3471         ;;
3472         --extra-ldlibflags=*)
3473             add_ldlibflags $optval
3474         ;;
3475         --extra-libs=*)
3476             add_extralibs $optval
3477         ;;
3478         --disable-devices)
3479             disable $INDEV_LIST $OUTDEV_LIST
3480         ;;
3481         --enable-debug=*)
3482             debuglevel="$optval"
3483         ;;
3484         --disable-programs)
3485             disable $PROGRAM_LIST
3486         ;;
3487         --disable-everything)
3488             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3489         ;;
3490         --disable-all)
3491             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3492             disable $LIBRARY_LIST $PROGRAM_LIST doc
3493             enable avutil
3494         ;;
3495         --enable-random|--disable-random)
3496             action=${opt%%-random}
3497             do_random ${action#--} $COMPONENT_LIST
3498         ;;
3499         --enable-random=*|--disable-random=*)
3500             action=${opt%%-random=*}
3501             do_random ${action#--} $optval
3502         ;;
3503         --enable-*=*|--disable-*=*)
3504             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3505             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3506             eval list=\$$(toupper $thing)_LIST
3507             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3508             list=$(filter "$name" $list)
3509             [ "$list" = "" ] && warn "Option $opt did not match anything"
3510             $action $list
3511         ;;
3512         --enable-yasm|--disable-yasm)
3513             warn "The ${opt} option is only provided for compatibility and will be\n"\
3514                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
3515             test $opt = --enable-yasm && x86asm=yes || x86asm=no
3516         ;;
3517         --yasmexe=*)
3518             warn "The --yasmexe option is only provided for compatibility and will be\n"\
3519                  "removed in the future. Use --x86asmexe instead."
3520             x86asmexe="$optval"
3521         ;;
3522         --enable-?*|--disable-?*)
3523             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3524             if is_in $option $COMPONENT_LIST; then
3525                 test $action = disable && action=unset
3526                 eval $action \$$(toupper ${option%s})_LIST
3527             elif is_in $option $CMDLINE_SELECT; then
3528                 $action $option
3529             else
3530                 die_unknown $opt
3531             fi
3532         ;;
3533         --list-*)
3534             NAME="${opt#--list-}"
3535             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3536             NAME=${NAME%s}
3537             eval show_list $NAME \$$(toupper $NAME)_LIST
3538         ;;
3539         --help|-h) show_help
3540         ;;
3541         --quiet|-q) quiet=yes
3542         ;;
3543         --fatal-warnings) enable fatal_warnings
3544         ;;
3545         --libfuzzer=*)
3546             libfuzzer_path="$optval"
3547         ;;
3548         *)
3549             optname="${opt%%=*}"
3550             optname="${optname#--}"
3551             optname=$(echo "$optname" | sed 's/-/_/g')
3552             if is_in $optname $CMDLINE_SET; then
3553                 eval $optname='$optval'
3554             elif is_in $optname $CMDLINE_APPEND; then
3555                 append $optname "$optval"
3556             else
3557                 die_unknown $opt
3558             fi
3559         ;;
3560     esac
3561 done
3562
3563 for e in $env; do
3564     eval "export $e"
3565 done
3566
3567 # Mark specifically enabled, but normally autodetected libraries as requested.
3568 for lib in $AUTODETECT_LIBS; do
3569     enabled $lib && request $lib
3570 done
3571
3572 # Enable platform codecs by default.
3573 enable_weak audiotoolbox
3574
3575 # Enable hwaccels by default.
3576 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3577 enable_weak xlib
3578
3579 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3580
3581 disabled logging && logfile=/dev/null
3582
3583 die_license_disabled() {
3584     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3585 }
3586
3587 die_license_disabled_gpl() {
3588     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3589 }
3590
3591 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3592 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3593
3594 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3595 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3596
3597 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3598
3599 # Disable all the library-specific components if the library itself
3600 # is disabled, see AVCODEC_LIST and following _LIST variables.
3601
3602 disable_components(){
3603     disabled ${1} && disable $(
3604         eval components="\$$(toupper ${1})_COMPONENTS"
3605         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3606     )
3607 }
3608
3609 map 'disable_components $v' $LIBRARY_LIST
3610
3611 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3612 set >> $logfile
3613
3614 test -n "$valgrind" && toolchain="valgrind-memcheck"
3615
3616 enabled ossfuzz && {
3617     add_cflags  -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
3618     add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
3619 }
3620
3621 case "$toolchain" in
3622     *-asan)
3623         cc_default="${toolchain%-asan}"
3624         add_cflags  -fsanitize=address
3625         add_ldflags -fsanitize=address
3626     ;;
3627     *-msan)
3628         cc_default="${toolchain%-msan}"
3629         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3630         add_ldflags -fsanitize=memory
3631     ;;
3632     *-tsan)
3633         cc_default="${toolchain%-tsan}"
3634         add_cflags  -fsanitize=thread -fPIE
3635         add_ldflags -fsanitize=thread -pie
3636         case "$toolchain" in
3637             gcc-tsan)
3638                 add_cflags  -fPIC
3639                 add_ldflags -fPIC
3640                 ;;
3641         esac
3642     ;;
3643     *-usan)
3644         cc_default="${toolchain%-usan}"
3645         add_cflags  -fsanitize=undefined
3646         add_ldflags -fsanitize=undefined
3647     ;;
3648     valgrind-*)
3649         target_exec_default="valgrind"
3650         case "$toolchain" in
3651             valgrind-massif)
3652                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3653                 ;;
3654             valgrind-memcheck)
3655                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3656                 ;;
3657         esac
3658     ;;
3659     msvc)
3660         # Check whether the current MSVC version needs the C99 converter.
3661         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3662         # support enough of C99 to build ffmpeg. Default to the new
3663         # behaviour if the regexp was unable to match anything, since this
3664         # successfully parses the version number of existing supported
3665         # versions that require the converter (MSVC 2010 and 2012).
3666         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3667         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3668             cc_default="cl"
3669             cxx_default="cl"
3670         else
3671             cc_default="c99wrap cl"
3672             cxx_default="c99wrap cl"
3673         fi
3674         ld_default="$source_path/compat/windows/mslink"
3675         nm_default="dumpbin -symbols"
3676         ar_default="lib"
3677         case "$arch" in
3678         arm*)
3679             as_default="armasm"
3680             ;;
3681         esac
3682         target_os_default="win32"
3683         # Use a relative path for TMPDIR. This makes sure all the
3684         # ffconf temp files are written with a relative path, avoiding
3685         # issues with msys/win32 path conversion for MSVC parameters
3686         # such as -Fo<file> or -out:<file>.
3687         TMPDIR=.
3688     ;;
3689     icl)
3690         cc_default="icl"
3691         ld_default="xilink"
3692         nm_default="dumpbin -symbols"
3693         ar_default="xilib"
3694         target_os_default="win32"
3695         TMPDIR=.
3696     ;;
3697     gcov)
3698         add_cflags  -fprofile-arcs -ftest-coverage
3699         add_ldflags -fprofile-arcs -ftest-coverage
3700     ;;
3701     llvm-cov)
3702         add_cflags -fprofile-arcs -ftest-coverage
3703         add_ldflags --coverage
3704     ;;
3705     hardened)
3706         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3707         add_cflags   -fno-strict-overflow -fstack-protector-all
3708         add_ldflags  -Wl,-z,relro -Wl,-z,now
3709         add_cflags   -fPIE
3710         add_ldexeflags -fPIE -pie
3711     ;;
3712     ?*)
3713         die "Unknown toolchain $toolchain"
3714     ;;
3715 esac
3716
3717 test -n "$cross_prefix" && enable cross_compile
3718
3719 if enabled cross_compile; then
3720     test -n "$arch" && test -n "$target_os" ||
3721         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3722 fi
3723
3724 ar_default="${cross_prefix}${ar_default}"
3725 cc_default="${cross_prefix}${cc_default}"
3726 cxx_default="${cross_prefix}${cxx_default}"
3727 nm_default="${cross_prefix}${nm_default}"
3728 pkg_config_default="${cross_prefix}${pkg_config_default}"
3729 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3730     ranlib_default="${cross_prefix}${ranlib_default} -D"
3731 else
3732     ranlib_default="${cross_prefix}${ranlib_default}"
3733 fi
3734 strip_default="${cross_prefix}${strip_default}"
3735 windres_default="${cross_prefix}${windres_default}"
3736
3737 sysinclude_default="${sysroot}/usr/include"
3738
3739 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3740     target_exec target_os x86asmexe nvcc
3741 enabled cross_compile || host_cc_default=$cc
3742 set_default host_cc
3743
3744 pkg_config_fail_message=""
3745 if ! $pkg_config --version >/dev/null 2>&1; then
3746     warn "$pkg_config not found, library detection may fail."
3747     pkg_config=false
3748 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3749     pkg_config_fail_message="
3750 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3751 fi
3752
3753 if test $doxygen != $doxygen_default && \
3754   ! $doxygen --version >/dev/null 2>&1; then
3755     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3756 fi
3757
3758 exesuf() {
3759     case $1 in
3760         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3761     esac
3762 }
3763
3764 EXESUF=$(exesuf $target_os)
3765 HOSTEXESUF=$(exesuf $host_os)
3766
3767 # set temporary file name
3768 : ${TMPDIR:=$TEMPDIR}
3769 : ${TMPDIR:=$TMP}
3770 : ${TMPDIR:=/tmp}
3771
3772 if [ -n "$tempprefix" ] ; then
3773     mktemp(){
3774         tmpname="$tempprefix.${HOSTNAME}.${UID}"
3775         echo "$tmpname"
3776         mkdir "$tmpname"
3777     }
3778 elif ! check_cmd mktemp -u XXXXXX; then
3779     # simple replacement for missing mktemp
3780     # NOT SAFE FOR GENERAL USE
3781     mktemp(){
3782         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3783         echo "$tmpname"
3784         mkdir "$tmpname"
3785     }
3786 fi
3787
3788 FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
3789     die "Unable to create temporary directory in $TMPDIR."
3790
3791 tmpfile(){
3792     tmp="${FFTMPDIR}/test"$2
3793     (set -C; exec > $tmp) 2> /dev/null ||
3794         die "Unable to create temporary file in $FFTMPDIR."
3795     eval $1=$tmp
3796 }
3797
3798 trap 'rm -rf -- "$FFTMPDIR"' EXIT
3799 trap 'exit 2' INT
3800
3801 tmpfile TMPASM .asm
3802 tmpfile TMPC   .c
3803 tmpfile TMPCPP .cpp
3804 tmpfile TMPE   $EXESUF
3805 tmpfile TMPH   .h
3806 tmpfile TMPM   .m
3807 tmpfile TMPO   .o
3808 tmpfile TMPS   .S
3809 tmpfile TMPSH  .sh
3810 tmpfile TMPV   .ver
3811
3812 unset -f mktemp
3813
3814 chmod +x $TMPE
3815
3816 # make sure we can execute files in $TMPDIR
3817 cat > $TMPSH 2>> $logfile <<EOF
3818 #! /bin/sh
3819 EOF
3820 chmod +x $TMPSH >> $logfile 2>&1
3821 if ! $TMPSH >> $logfile 2>&1; then
3822     cat <<EOF
3823 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3824 variable to another directory and make sure that it is not mounted noexec.
3825 EOF
3826     die "Sanity test failed."
3827 fi
3828
3829 armasm_flags(){
3830     for flag; do
3831         case $flag in
3832             # Filter out MSVC cl.exe options from cflags that shouldn't
3833             # be passed to gas-preprocessor
3834             -M[TD]*)                                            ;;
3835             *)                  echo $flag                      ;;
3836         esac
3837    done
3838 }
3839
3840 ccc_flags(){
3841     for flag; do
3842         case $flag in
3843             -std=c99)           echo -c99                       ;;
3844             -mcpu=*)            echo -arch ${flag#*=}           ;;
3845             -mieee)             echo -ieee                      ;;
3846             -O*|-fast)          echo $flag                      ;;
3847             -fno-math-errno)    echo -assume nomath_errno       ;;
3848             -g)                 echo -g3                        ;;
3849             -Wall)              echo -msg_enable level2         ;;
3850             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3851             -Wl,*)              echo $flag                      ;;
3852             -f*|-W*)                                            ;;
3853             *)                  echo $flag                      ;;
3854         esac
3855    done
3856 }
3857
3858 cparser_flags(){
3859     for flag; do
3860         case $flag in
3861             -Wno-switch)             echo -Wno-switch-enum ;;
3862             -Wno-format-zero-length) ;;
3863             -Wdisabled-optimization) ;;
3864             -Wno-pointer-sign)       echo -Wno-other ;;
3865             *)                       echo $flag ;;
3866         esac
3867     done
3868 }
3869
3870 msvc_common_flags(){
3871     for flag; do
3872         case $flag in
3873             # In addition to specifying certain flags under the compiler
3874             # specific filters, they must be specified here as well or else the
3875             # generic catch all at the bottom will print the original flag.
3876             -Wall)                ;;
3877             -Wextra)              ;;
3878             -std=c99)             ;;
3879             # Common flags
3880             -fomit-frame-pointer) ;;
3881             -g)                   echo -Z7 ;;
3882             -fno-math-errno)      ;;
3883             -fno-common)          ;;
3884             -fno-signed-zeros)    ;;
3885             -fPIC)                ;;
3886             -mthumb)              ;;
3887             -march=*)             ;;
3888             -lz)                  echo zlib.lib ;;
3889             -lx264)               echo libx264.lib ;;
3890             -lstdc++)             ;;
3891             -l*)                  echo ${flag#-l}.lib ;;
3892             -LARGEADDRESSAWARE)   echo $flag ;;
3893             -L*)                  echo -libpath:${flag#-L} ;;
3894             *)                    echo $flag ;;
3895         esac
3896     done
3897 }
3898
3899 msvc_flags(){
3900     msvc_common_flags "$@"
3901     for flag; do
3902         case $flag in
3903             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3904                                        -wd4554 ;;
3905             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3906                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3907                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3908                                        -wd4307 \
3909                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3910         esac
3911     done
3912 }
3913
3914 icl_flags(){
3915     msvc_common_flags "$@"
3916     for flag; do
3917         case $flag in
3918             # Despite what Intel's documentation says -Wall, which is supported
3919             # on Windows, does enable remarks so disable them here.
3920             -Wall)                echo $flag -Qdiag-disable:remark ;;
3921             -std=c99)             echo -Qstd=c99 ;;
3922             -flto)                echo -ipo ;;
3923         esac
3924     done
3925 }
3926
3927 icc_flags(){
3928     for flag; do
3929         case $flag in
3930             -flto)                echo -ipo ;;
3931             *)                    echo $flag ;;
3932         esac
3933     done
3934 }
3935
3936 pgi_flags(){
3937     for flag; do
3938         case $flag in
3939             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3940             -fomit-frame-pointer) echo -Mnoframe ;;
3941             -g)                   echo -gopt ;;
3942             *)                    echo $flag ;;
3943         esac
3944     done
3945 }
3946
3947 suncc_flags(){
3948     for flag; do
3949         case $flag in
3950             -march=*|-mcpu=*)
3951                 case "${flag#*=}" in
3952                     native)                   echo -xtarget=native       ;;
3953                     v9|niagara)               echo -xarch=sparc          ;;
3954                     ultrasparc)               echo -xarch=sparcvis       ;;
3955                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3956                     i586|pentium)             echo -xchip=pentium        ;;
3957                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3958                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3959                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3960                     pentium4*)          echo -xtarget=pentium4           ;;
3961                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3962                     *-sse3)             echo -xarch=sse3                 ;;
3963                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3964                     bonnell)                   echo -xarch=ssse3         ;;
3965                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3966                     westmere)                  echo -xtarget=westmere    ;;
3967                     silvermont)                echo -xarch=sse4_2        ;;
3968                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3969                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3970                                                echo -xarch=avx           ;;
3971                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3972                     btver1)                    echo -xarch=amdsse4a      ;;
3973                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3974                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3975                     k8|opteron|athlon64|athlon-fx)
3976                                                echo -xarch=sse2a         ;;
3977                     athlon*)                   echo -xarch=pentium_proa  ;;
3978                 esac
3979                 ;;
3980             -std=c99)             echo -xc99              ;;
3981             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3982             -fPIC)                echo -KPIC -xcode=pic32 ;;
3983             -W*,*)                echo $flag              ;;
3984             -f*-*|-W*|-mimpure-text)                      ;;
3985             -shared)              echo -G                 ;;
3986             *)                    echo $flag              ;;
3987         esac
3988     done
3989 }
3990
3991 tms470_flags(){
3992     for flag; do
3993         case $flag in
3994             -march=*|-mcpu=*)
3995                 case "${flag#*=}" in
3996                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3997                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3998                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3999                     armv6*|arm11*)          echo -mv=6   ;;
4000                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
4001                                             echo -mv=5e  ;;
4002                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
4003                 esac
4004                 ;;
4005             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
4006             -mfpu=vfp)      echo --float_support=vfpv2        ;;
4007             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
4008             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
4009             -msoft-float)   echo --float_support=vfplib       ;;
4010             -O[0-3]|-mf=*)  echo $flag                        ;;
4011             -g)             echo -g -mn                       ;;
4012             -pds=*)         echo $flag                        ;;
4013             -D*|-I*)        echo $flag                        ;;
4014             --gcc|--abi=*)  echo $flag                        ;;
4015             -me)            echo $flag                        ;;
4016         esac
4017     done
4018 }
4019
4020 probe_cc(){
4021     pfx=$1
4022     _cc=$2
4023     first=$3
4024
4025     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
4026     unset _ld_o _ldflags _ld_lib _ld_path
4027     unset _depflags _DEPCMD _DEPFLAGS
4028     _flags_filter=echo
4029
4030     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
4031         true # no-op to avoid reading stdin in following checks
4032     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
4033         _type=llvm_gcc
4034         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
4035         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
4036         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4037         _cflags_speed='-O3'
4038         _cflags_size='-Os'
4039     elif $_cc -v 2>&1 | grep -qi ^gcc; then
4040         _type=gcc
4041         gcc_version=$($_cc --version | head -n1)
4042         gcc_basever=$($_cc -dumpversion)
4043         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
4044         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
4045         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4046         case $gcc_basever in
4047             2) ;;
4048             2.*) ;;
4049             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4050         esac
4051         if [ "$first" = true ]; then
4052             case $gcc_basever in
4053                 4.2*)
4054                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4055             esac
4056         fi
4057         _cflags_speed='-O3'
4058         _cflags_size='-Os'
4059     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4060         _type=icc
4061         _ident=$($_cc --version | head -n1)
4062         _depflags='-MMD'
4063         _cflags_speed='-O3'
4064         _cflags_size='-Os'
4065         _cflags_noopt='-O1'
4066         _flags_filter=icc_flags
4067     elif $_cc -v 2>&1 | grep -q xlc; then
4068         _type=xlc
4069         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4070         _cflags_speed='-O5'
4071         _cflags_size='-O5 -qcompact'
4072     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4073         _type=ccc
4074         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4075         _DEPFLAGS='-M'
4076         _cflags_speed='-fast'
4077         _cflags_size='-O1'
4078         _flags_filter=ccc_flags
4079     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4080         test -d "$sysroot" || die "No valid sysroot specified."
4081         _type=armcc
4082         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4083         armcc_conf="$PWD/armcc.conf"
4084         $_cc --arm_linux_configure                 \
4085              --arm_linux_config_file="$armcc_conf" \
4086              --configure_sysroot="$sysroot"        \
4087              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4088              die "Error creating armcc configuration file."
4089         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4090         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4091         as_default="${cross_prefix}gcc"
4092         _depflags='-MMD'
4093         _cflags_speed='-O3'
4094         _cflags_size='-Os'
4095     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4096         _type=tms470
4097         _ident=$($_cc -version | head -n1 | tr -s ' ')
4098         _flags='--gcc --abi=eabi -me'
4099         _cc_e='-ppl -fe=$@'
4100         _cc_o='-fe=$@'
4101         _depflags='-ppa -ppd=$(@:.o=.d)'
4102         _cflags_speed='-O3 -mf=5'
4103         _cflags_size='-O3 -mf=2'
4104         _flags_filter=tms470_flags
4105     elif $_cc -v 2>&1 | grep -q clang; then
4106         _type=clang
4107         _ident=$($_cc --version 2>/dev/null | head -n1)
4108         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4109         _cflags_speed='-O3'
4110         _cflags_size='-Oz'
4111     elif $_cc -V 2>&1 | grep -q Sun; then
4112         _type=suncc
4113         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4114         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4115         _DEPFLAGS='-xM1 -xc99'
4116         _ldflags='-std=c99'
4117         _cflags_speed='-O5'
4118         _cflags_size='-O5 -xspace'
4119         _flags_filter=suncc_flags
4120     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4121         _type=pathscale
4122         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4123         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4124         _cflags_speed='-O2'
4125         _cflags_size='-Os'
4126         _flags_filter='filter_out -Wdisabled-optimization'
4127     elif $_cc -v 2>&1 | grep -q Open64; then
4128         _type=open64
4129         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4130         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4131         _cflags_speed='-O2'
4132         _cflags_size='-Os'
4133         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4134     elif $_cc -V 2>&1 | grep -q Portland; then
4135         _type=pgi
4136         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4137         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4138         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4139         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4140         _cflags_noopt="-O"
4141         _flags_filter=pgi_flags
4142     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4143         _type=armasm
4144         _ident=$($_cc | head -n1)
4145         # 4509: "This form of conditional instruction is deprecated"
4146         _flags="-nologo -ignore 4509"
4147         _flags_filter=armasm_flags
4148     elif $_cc 2>&1 | grep -q Intel; then
4149         _type=icl
4150         _ident=$($_cc 2>&1 | head -n1)
4151         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4152         # Not only is O3 broken on 13.x+ but it is slower on all previous
4153         # versions (tested) as well.
4154         _cflags_speed="-O2"
4155         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4156         if $_cc 2>&1 | grep -q Linker; then
4157             _ld_o='-out:$@'
4158         else
4159             _ld_o='-Fe$@'
4160         fi
4161         _cc_o='-Fo$@'
4162         _cc_e='-P'
4163         _flags_filter=icl_flags
4164         _ld_lib='lib%.a'
4165         _ld_path='-libpath:'
4166         # -Qdiag-error to make icl error when seeing certain unknown arguments
4167         _flags='-nologo -Qdiag-error:4044,10157'
4168         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4169         # with MSVC which enables it by default.
4170         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4171         disable stripping
4172     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4173         # lld can emulate multiple different linkers; in ms link.exe mode,
4174         # the -? parameter gives the help output which contains an identifyable
4175         # string, while it gives an error in other modes.
4176         _type=lld-link
4177         # The link.exe mode doesn't have a switch for getting the version,
4178         # but we can force it back to gnu mode and get the version from there.
4179         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4180         _ld_o='-out:$@'
4181         _flags_filter=msvc_flags
4182         _ld_lib='lib%.a'
4183         _ld_path='-libpath:'
4184     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4185         _type=msvc
4186         _ident=$($_cc 2>&1 | head -n1)
4187         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4188         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4189         _cflags_speed="-O2"
4190         _cflags_size="-O1"
4191         _cflags_noopt="-O1"
4192         if $_cc -nologo- 2>&1 | grep -q Linker; then
4193             _ld_o='-out:$@'
4194         else
4195             _ld_o='-Fe$@'
4196         fi
4197         _cc_o='-Fo$@'
4198         _cc_e='-P -Fi$@'
4199         _flags_filter=msvc_flags
4200         _ld_lib='lib%.a'
4201         _ld_path='-libpath:'
4202         _flags='-nologo'
4203         disable stripping
4204     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4205         _type=cparser
4206         _ident=$($_cc --version | head -n1)
4207         _depflags='-MMD'
4208         _cflags_speed='-O4'
4209         _cflags_size='-O2'
4210         _flags_filter=cparser_flags
4211     fi
4212
4213     eval ${pfx}_type=\$_type
4214     eval ${pfx}_ident=\$_ident
4215 }
4216
4217 set_ccvars(){
4218     eval ${1}_C=\${_cc_c-\${${1}_C}}
4219     eval ${1}_E=\${_cc_e-\${${1}_E}}
4220     eval ${1}_O=\${_cc_o-\${${1}_O}}
4221
4222     if [ -n "$_depflags" ]; then
4223         eval ${1}_DEPFLAGS=\$_depflags
4224     else
4225         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4226         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4227         eval DEP${1}FLAGS=\$_flags
4228     fi
4229 }
4230
4231 probe_cc cc "$cc" "true"
4232 cflags_filter=$_flags_filter
4233 cflags_speed=$_cflags_speed
4234 cflags_size=$_cflags_size
4235 cflags_noopt=$_cflags_noopt
4236 add_cflags $_flags $_cflags
4237 cc_ldflags=$_ldflags
4238 set_ccvars CC
4239 set_ccvars CXX
4240
4241 probe_cc hostcc "$host_cc"
4242 host_cflags_filter=$_flags_filter
4243 host_cflags_speed=$_cflags_speed
4244 add_host_cflags  $_flags $_cflags
4245 set_ccvars HOSTCC
4246
4247 test -n "$cc_type" && enable $cc_type ||
4248     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4249
4250 : ${as_default:=$cc}
4251 : ${objcc_default:=$cc}
4252 : ${dep_cc_default:=$cc}
4253 : ${ld_default:=$cc}
4254 : ${host_ld_default:=$host_cc}
4255 set_default ar as objcc dep_cc ld ln_s host_ld windres
4256
4257 probe_cc as "$as"
4258 asflags_filter=$_flags_filter
4259 add_asflags $_flags $_cflags
4260 set_ccvars AS
4261
4262 probe_cc objcc "$objcc"
4263 objcflags_filter=$_flags_filter
4264 add_objcflags $_flags $_cflags
4265 set_ccvars OBJC
4266
4267 probe_cc ld "$ld"
4268 ldflags_filter=$_flags_filter
4269 add_ldflags $_flags $_ldflags
4270 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4271 LD_O=${_ld_o-$LD_O}
4272 LD_LIB=${_ld_lib-$LD_LIB}
4273 LD_PATH=${_ld_path-$LD_PATH}
4274
4275 probe_cc hostld "$host_ld"
4276 host_ldflags_filter=$_flags_filter
4277 add_host_ldflags $_flags $_ldflags
4278 HOSTLD_O=${_ld_o-$HOSTLD_O}
4279
4280 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4281     probe_cc depcc "$dep_cc"
4282     CCDEP=${_DEPCMD:-$DEPCMD}
4283     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4284     DEPCCFLAGS=$_flags
4285 fi
4286
4287 if $ar 2>&1 | grep -q Microsoft; then
4288     arflags="-nologo"
4289     ar_o='-out:$@'
4290 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4291     arflags="rq"
4292     ar_o='$@'
4293 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4294     arflags='-Xany -r -c'
4295     ar_o='$@'
4296 elif $ar 2>&1 | grep -q "\[D\] "; then
4297     arflags="rcD"
4298     ar_o='$@'
4299 else
4300     arflags="rc"
4301     ar_o='$@'
4302 fi
4303
4304 add_cflags $extra_cflags
4305 add_cxxflags $extra_cxxflags
4306 add_objcflags $extra_objcflags
4307 add_asflags $extra_cflags
4308
4309 if test -n "$sysroot"; then
4310     case "$cc_type" in
4311         gcc|llvm_gcc|clang)
4312             add_cppflags --sysroot="$sysroot"
4313             add_ldflags --sysroot="$sysroot"
4314 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4315             add_cppflags -isysroot "$sysroot"
4316             add_ldflags -isysroot "$sysroot"
4317         ;;
4318         tms470)
4319             add_cppflags -I"$sysinclude"
4320             add_ldflags  --sysroot="$sysroot"
4321         ;;
4322     esac
4323 fi
4324
4325 if test "$cpu" = host; then
4326     enabled cross_compile &&
4327         die "--cpu=host makes no sense when cross-compiling."
4328
4329     case "$cc_type" in
4330         gcc|llvm_gcc)
4331             check_native(){
4332                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4333                 sed -n "/cc1.*$1=/{
4334                             s/.*$1=\\([^ ]*\\).*/\\1/
4335                             p
4336                             q
4337                         }" $TMPE
4338             }
4339             cpu=$(check_native -march || check_native -mcpu)
4340         ;;
4341         clang)
4342             check_native(){
4343                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4344                 sed -n "/cc1.*-target-cpu /{
4345                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4346                             p
4347                             q
4348                         }" $TMPE
4349             }
4350             cpu=$(check_native -march)
4351         ;;
4352     esac
4353
4354     test "${cpu:-host}" = host &&
4355         die "--cpu=host not supported with compiler $cc"
4356 fi
4357
4358 # Deal with common $arch aliases
4359 case "$arch" in
4360     aarch64|arm64)
4361         arch="aarch64"
4362     ;;
4363     arm*|iPad*|iPhone*)
4364         arch="arm"
4365     ;;
4366     mips*|IP*)
4367         case "$arch" in
4368         *el)
4369             add_cppflags -EL
4370             add_ldflags -EL
4371         ;;
4372         *eb)
4373             add_cppflags -EB
4374             add_ldflags -EB
4375         ;;
4376         esac
4377         arch="mips"
4378     ;;
4379     parisc*|hppa*)
4380         arch="parisc"
4381     ;;
4382     "Power Macintosh"|ppc*|powerpc*)
4383         arch="ppc"
4384     ;;
4385     s390|s390x)
4386         arch="s390"
4387     ;;
4388     sh4|sh)
4389         arch="sh4"
4390     ;;
4391     sun4*|sparc*)
4392         arch="sparc"
4393     ;;
4394     tilegx|tile-gx)
4395         arch="tilegx"
4396     ;;
4397     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4398         arch="x86"
4399     ;;
4400 esac
4401
4402 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4403 enable $arch
4404
4405 # Add processor-specific flags
4406 if enabled aarch64; then
4407
4408     case $cpu in
4409         armv*)
4410             cpuflags="-march=$cpu"
4411         ;;
4412         *)
4413             cpuflags="-mcpu=$cpu"
4414         ;;
4415     esac
4416
4417 elif enabled alpha; then
4418
4419     cpuflags="-mcpu=$cpu"
4420
4421 elif enabled arm; then
4422
4423     check_arm_arch() {
4424         check_cpp_condition stddef.h \
4425             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4426             $cpuflags
4427     }
4428
4429     probe_arm_arch() {
4430         if   check_arm_arch 4;        then echo armv4
4431         elif check_arm_arch 4T;       then echo armv4t
4432         elif check_arm_arch 5;        then echo armv5
4433         elif check_arm_arch 5E;       then echo armv5e
4434         elif check_arm_arch 5T;       then echo armv5t
4435         elif check_arm_arch 5TE;      then echo armv5te
4436         elif check_arm_arch 5TEJ;     then echo armv5te
4437         elif check_arm_arch 6;        then echo armv6
4438         elif check_arm_arch 6J;       then echo armv6j
4439         elif check_arm_arch 6K;       then echo armv6k
4440         elif check_arm_arch 6Z;       then echo armv6z
4441         elif check_arm_arch 6ZK;      then echo armv6zk
4442         elif check_arm_arch 6T2;      then echo armv6t2
4443         elif check_arm_arch 7;        then echo armv7
4444         elif check_arm_arch 7A  7_A;  then echo armv7-a
4445         elif check_arm_arch 7S;       then echo armv7-a
4446         elif check_arm_arch 7R  7_R;  then echo armv7-r
4447         elif check_arm_arch 7M  7_M;  then echo armv7-m
4448         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4449         elif check_arm_arch 8A  8_A;  then echo armv8-a
4450         fi
4451     }
4452
4453     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4454
4455     case $cpu in
4456         armv*)
4457             cpuflags="-march=$cpu"
4458             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4459         ;;
4460         *)
4461             cpuflags="-mcpu=$cpu"
4462             case $cpu in
4463                 cortex-a*)                               subarch=armv7a  ;;
4464                 cortex-r*)                               subarch=armv7r  ;;
4465                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4466                 arm11*)                                  subarch=armv6   ;;
4467                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4468                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4469                 *)                             subarch=$(probe_arm_arch) ;;
4470             esac
4471         ;;
4472     esac
4473
4474     case "$subarch" in
4475         armv5t*)    enable fast_clz                ;;
4476         armv[6-8]*)
4477             enable fast_clz
4478             disabled fast_unaligned || enable fast_unaligned
4479             ;;
4480     esac
4481
4482 elif enabled avr32; then
4483
4484     case $cpu in
4485         ap7[02]0[0-2])
4486             subarch="avr32_ap"
4487             cpuflags="-mpart=$cpu"
4488         ;;
4489         ap)
4490             subarch="avr32_ap"
4491             cpuflags="-march=$cpu"
4492         ;;
4493         uc3[ab]*)
4494             subarch="avr32_uc"
4495             cpuflags="-mcpu=$cpu"
4496         ;;
4497         uc)
4498             subarch="avr32_uc"
4499             cpuflags="-march=$cpu"
4500         ;;
4501     esac
4502
4503 elif enabled bfin; then
4504
4505     cpuflags="-mcpu=$cpu"
4506
4507 elif enabled mips; then
4508
4509     cpuflags="-march=$cpu"
4510
4511     if [ "$cpu" != "generic" ]; then
4512         disable mips32r2
4513         disable mips32r5
4514         disable mips64r2
4515         disable mips32r6
4516         disable mips64r6
4517         disable loongson2
4518         disable loongson3
4519
4520         case $cpu in
4521             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4522                 enable mips32r2
4523                 disable msa
4524             ;;
4525             p5600|i6400|p6600)
4526                 disable mipsdsp
4527                 disable mipsdspr2
4528             ;;
4529             loongson*)
4530                 enable loongson2
4531                 enable loongson3
4532                 enable local_aligned_8 local_aligned_16 local_aligned_32
4533                 enable simd_align_16
4534                 enable fast_64bit
4535                 enable fast_clz
4536                 enable fast_cmov
4537                 enable fast_unaligned
4538                 disable aligned_stack
4539                 disable mipsfpu
4540                 disable mipsdsp
4541                 disable mipsdspr2
4542                 case $cpu in
4543                     loongson3*)
4544                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4545                     ;;
4546                     loongson2e)
4547                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4548                     ;;
4549                     loongson2f)
4550                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4551                     ;;
4552                 esac
4553             ;;
4554             *)
4555                 # Unknown CPU. Disable everything.
4556                 warn "unknown CPU. Disabling all MIPS optimizations."
4557                 disable mipsfpu
4558                 disable mipsdsp
4559                 disable mipsdspr2
4560                 disable msa
4561                 disable mmi
4562             ;;
4563         esac
4564
4565         case $cpu in
4566             24kc)
4567                 disable mipsfpu
4568                 disable mipsdsp
4569                 disable mipsdspr2
4570             ;;
4571             24kf*)
4572                 disable mipsdsp
4573                 disable mipsdspr2
4574             ;;
4575             24kec|34kc|1004kc)
4576                 disable mipsfpu
4577                 disable mipsdspr2
4578             ;;
4579             24kef*|34kf*|1004kf*)
4580                 disable mipsdspr2
4581             ;;
4582             74kc)
4583                 disable mipsfpu
4584             ;;
4585             p5600)
4586                 enable mips32r5
4587                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4588             ;;
4589             i6400)
4590                 enable mips64r6
4591                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4592             ;;
4593             p6600)
4594                 enable mips64r6
4595                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4596             ;;
4597         esac
4598     else
4599         # We do not disable anything. Is up to the user to disable the unwanted features.
4600         warn 'generic cpu selected'
4601     fi
4602
4603 elif enabled ppc; then
4604
4605     disable ldbrx
4606
4607     case $(tolower $cpu) in
4608         601|ppc601|powerpc601)
4609             cpuflags="-mcpu=601"
4610             disable altivec
4611         ;;
4612         603*|ppc603*|powerpc603*)
4613             cpuflags="-mcpu=603"
4614             disable altivec
4615         ;;
4616         604*|ppc604*|powerpc604*)
4617             cpuflags="-mcpu=604"
4618             disable altivec
4619         ;;
4620         g3|75*|ppc75*|powerpc75*)
4621             cpuflags="-mcpu=750"
4622             disable altivec
4623         ;;
4624         g4|745*|ppc745*|powerpc745*)
4625             cpuflags="-mcpu=7450"
4626             disable vsx
4627         ;;
4628         74*|ppc74*|powerpc74*)
4629             cpuflags="-mcpu=7400"
4630             disable vsx
4631         ;;
4632         g5|970|ppc970|powerpc970)
4633             cpuflags="-mcpu=970"
4634             disable vsx
4635         ;;
4636         power[3-6]*)
4637             cpuflags="-mcpu=$cpu"
4638             disable vsx
4639         ;;
4640         power[7-8]*)
4641             cpuflags="-mcpu=$cpu"
4642         ;;
4643         cell)
4644             cpuflags="-mcpu=cell"
4645             enable ldbrx
4646             disable vsx
4647         ;;
4648         e500mc)
4649             cpuflags="-mcpu=e500mc"
4650             disable altivec
4651         ;;
4652         e500v2)
4653             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4654             disable altivec
4655             disable dcbzl
4656         ;;
4657         e500)
4658             cpuflags="-mcpu=8540 -mhard-float"
4659             disable altivec
4660             disable dcbzl
4661         ;;
4662     esac
4663
4664 elif enabled sparc; then
4665
4666     case $cpu in
4667         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4668             cpuflags="-mcpu=$cpu"
4669         ;;
4670         ultrasparc*|niagara[234])
4671             cpuflags="-mcpu=$cpu"
4672         ;;
4673     esac
4674
4675 elif enabled x86; then
4676
4677     case $cpu in
4678         i[345]86|pentium)
4679             cpuflags="-march=$cpu"
4680             disable i686
4681             disable mmx
4682         ;;
4683         # targets that do NOT support nopl and conditional mov (cmov)
4684         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4685             cpuflags="-march=$cpu"
4686             disable i686
4687         ;;
4688         # targets that do support nopl and conditional mov (cmov)
4689         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4690         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4691         |amdfam10|barcelona|b[dt]ver*|znver*)
4692             cpuflags="-march=$cpu"
4693             enable i686
4694             enable fast_cmov
4695         ;;
4696         # targets that do support conditional mov but on which it's slow
4697         pentium4|pentium4m|prescott|nocona)
4698             cpuflags="-march=$cpu"
4699             enable i686
4700             disable fast_cmov
4701         ;;
4702     esac
4703
4704 fi
4705
4706 if [ "$cpu" != generic ]; then
4707     add_cflags  $cpuflags
4708     add_asflags $cpuflags
4709     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4710 fi
4711
4712 # compiler sanity check
4713 check_exec <<EOF
4714 int main(void){ return 0; }
4715 EOF
4716 if test "$?" != 0; then
4717     echo "$cc is unable to create an executable file."
4718     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4719         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4720         echo "Only do this if you know what cross compiling means."
4721     fi
4722     die "C compiler test failed."
4723 fi
4724
4725 add_cppflags -D_ISOC99_SOURCE
4726 add_cxxflags -D__STDC_CONSTANT_MACROS
4727 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4728
4729 # some compilers silently accept -std=c11, so we also need to check that the
4730 # version macro is defined properly
4731 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4732     add_cflags -std=c11
4733 else
4734     check_cflags -std=c99
4735 fi
4736
4737 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4738 #include <stdlib.h>
4739 EOF
4740 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4741 #include <stdlib.h>
4742 EOF
4743
4744 add_host_cppflags -D_ISOC99_SOURCE
4745 check_host_cflags -std=c99
4746 check_host_cflags -Wall
4747 check_host_cflags $host_cflags_speed
4748
4749 check_64bit(){
4750     arch32=$1
4751     arch64=$2
4752     expr=$3
4753     check_code cc "" "int test[2*($expr) - 1]" &&
4754         subarch=$arch64 || subarch=$arch32
4755 }
4756
4757 case "$arch" in
4758     aarch64|alpha|ia64)
4759         spic=$shared
4760     ;;
4761     mips)
4762         check_64bit mips mips64 '_MIPS_SIM > 1'
4763         spic=$shared
4764     ;;
4765     parisc)
4766         check_64bit parisc parisc64 'sizeof(void *) > 4'
4767         spic=$shared
4768     ;;
4769     ppc)
4770         check_64bit ppc ppc64 'sizeof(void *) > 4'
4771         spic=$shared
4772     ;;
4773     s390)
4774         check_64bit s390 s390x 'sizeof(void *) > 4'
4775         spic=$shared
4776     ;;
4777     sparc)
4778         check_64bit sparc sparc64 'sizeof(void *) > 4'
4779         spic=$shared
4780     ;;
4781     x86)
4782         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4783         # Treat x32 as x64 for now. Note it also needs spic=$shared
4784         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4785             subarch=x86_64
4786         if test "$subarch" = "x86_64"; then
4787             spic=$shared
4788         fi
4789     ;;
4790     ppc)
4791         check_cc <<EOF && subarch="ppc64"
4792         int test[(int)sizeof(char*) - 7];
4793 EOF
4794     ;;
4795 esac
4796
4797 enable $subarch
4798 enabled spic && enable_weak pic
4799
4800 enabled x86_64 && objformat=elf64 || objformat="elf32"
4801
4802 # OS specific
4803 case $target_os in
4804     aix)
4805         SHFLAGS=-shared
4806         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4807         enabled shared && add_ldflags -Wl,-brtl
4808         ;;
4809     android)
4810         disable symver
4811         enable section_data_rel_ro
4812         SLIB_INSTALL_NAME='$(SLIBNAME)'
4813         SLIB_INSTALL_LINKS=
4814         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4815         ;;
4816     haiku)
4817         prefix_default="/boot/common"
4818         network_extralibs="-lnetwork"
4819         host_extralibs=
4820         ;;
4821     sunos)
4822         SHFLAGS='-shared -Wl,-h,$$(@F)'
4823         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4824         network_extralibs="-lsocket -lnsl"
4825         add_cppflags -D__EXTENSIONS__
4826         # When using suncc to build, the Solaris linker will mark
4827         # an executable with each instruction set encountered by
4828         # the Solaris assembler.  As our libraries contain their own
4829         # guards for processor-specific code, instead suppress
4830         # generation of the HWCAPS ELF section on Solaris x86 only.
4831         enabled_all suncc x86 &&
4832             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4833             add_ldflags -Wl,-M,mapfile
4834         nm_default='nm -P -g'
4835         version_script='-M'
4836         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4837         ;;
4838     netbsd)
4839         disable symver
4840         oss_indev_extralibs="-lossaudio"
4841         oss_outdev_extralibs="-lossaudio"
4842         enabled gcc || check_ldflags -Wl,-zmuldefs
4843         ;;
4844     openbsd|bitrig)
4845         disable symver
4846         SHFLAGS='-shared'
4847         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4848         SLIB_INSTALL_LINKS=
4849         oss_indev_extralibs="-lossaudio"
4850         oss_outdev_extralibs="-lossaudio"
4851         ;;
4852     dragonfly)
4853         disable symver
4854         ;;
4855     freebsd)
4856         ;;
4857     bsd/os)
4858         add_extralibs -lpoll -lgnugetopt
4859         strip="strip -d"
4860         ;;
4861     darwin)
4862         enabled ppc && add_asflags -force_cpusubtype_ALL
4863         install_name_dir_default='$(SHLIBDIR)'
4864         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4865         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4866         strip="${strip} -x"
4867         add_ldflags -Wl,-dynamic,