Merge commit '984e50e74ba71301720652e56232161a994bd0b5'
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [config.log]
81   --disable-logging        do not log configure debug information
82   --fatal-warnings         fail if any configure warning is generated
83   --prefix=PREFIX          install in PREFIX [$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   --enable-raise-major     increase major version numbers in sonames [no]
113
114 Program options:
115   --disable-programs       do not build command line programs
116   --disable-ffmpeg         disable ffmpeg build
117   --disable-ffplay         disable ffplay build
118   --disable-ffprobe        disable ffprobe build
119   --disable-ffserver       disable ffserver build
120
121 Documentation options:
122   --disable-doc            do not build documentation
123   --disable-htmlpages      do not build HTML documentation pages
124   --disable-manpages       do not build man documentation pages
125   --disable-podpages       do not build POD documentation pages
126   --disable-txtpages       do not build text documentation pages
127
128 Component options:
129   --disable-avdevice       disable libavdevice build
130   --disable-avcodec        disable libavcodec build
131   --disable-avformat       disable libavformat build
132   --disable-swresample     disable libswresample build
133   --disable-swscale        disable libswscale build
134   --disable-postproc       disable libpostproc build
135   --disable-avfilter       disable libavfilter build
136   --enable-avresample      enable libavresample build [no]
137   --disable-pthreads       disable pthreads [autodetect]
138   --disable-w32threads     disable Win32 threads [autodetect]
139   --disable-os2threads     disable OS/2 threads [autodetect]
140   --disable-network        disable network support [no]
141   --disable-dct            disable DCT code
142   --disable-dwt            disable DWT code
143   --disable-error-resilience disable error resilience code
144   --disable-lsp            disable LSP code
145   --disable-lzo            disable LZO decoder code
146   --disable-mdct           disable MDCT code
147   --disable-rdft           disable RDFT code
148   --disable-fft            disable FFT code
149   --disable-faan           disable floating point AAN (I)DCT code
150   --disable-pixelutils     disable pixel utils in libavutil
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190
191   Using any of the following switches will allow FFmpeg to link to the
192   corresponding external library. All the components depending on that library
193   will become enabled, if all their other dependencies are met and they are not
194   explicitly disabled. E.g. --enable-libwavpack will enable linking to
195   libwavpack and allow the libwavpack encoder to be built, unless it is
196   specifically disabled with --disable-encoder=libwavpack.
197
198   Note that only the system libraries are auto-detected. All the other external
199   libraries must be explicitly enabled.
200
201   Also note that the following help text describes the purpose of the libraries
202   themselves, not all their features will necessarily be usable by FFmpeg.
203
204   --enable-avisynth        enable reading of AviSynth script files [no]
205   --disable-bzlib          disable bzlib [autodetect]
206   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
207   --enable-frei0r          enable frei0r video filtering [no]
208   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
209                            if openssl, librtmp or gmp is not used [no]
210   --enable-gmp             enable gmp, needed for rtmp(t)e support
211                            if openssl or librtmp is not used [no]
212   --enable-gnutls          enable gnutls, needed for https support
213                            if openssl is not used [no]
214   --disable-iconv          disable iconv [autodetect]
215   --enable-jni             enable JNI support [no]
216   --enable-ladspa          enable LADSPA audio filtering [no]
217   --enable-libass          enable libass subtitles rendering,
218                            needed for subtitles and ass filter [no]
219   --enable-libbluray       enable BluRay reading using libbluray [no]
220   --enable-libbs2b         enable bs2b DSP library [no]
221   --enable-libcaca         enable textual display using libcaca [no]
222   --enable-libcelt         enable CELT decoding via libcelt [no]
223   --enable-libcdio         enable audio CD grabbing with libcdio [no]
224   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
225                            and libraw1394 [no]
226   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
227   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
228   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
229   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
230   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
231   --enable-libgme          enable Game Music Emu via libgme [no]
232   --enable-libgsm          enable GSM de/encoding via libgsm [no]
233   --enable-libiec61883     enable iec61883 via libiec61883 [no]
234   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
235   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
236   --enable-libmodplug      enable ModPlug via libmodplug [no]
237   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
238   --enable-libnut          enable NUT (de)muxing via libnut,
239                            native (de)muxer exists [no]
240   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
241   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
242   --enable-libopencv       enable video filtering via libopencv [no]
243   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
244   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
245   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
246   --enable-libopus         enable Opus de/encoding via libopus [no]
247   --enable-libpulse        enable Pulseaudio input via libpulse [no]
248   --enable-librubberband   enable rubberband needed for rubberband filter [no]
249   --enable-librtmp         enable RTMP[E] support via librtmp [no]
250   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
251   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
252   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
253   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
254   --enable-libsoxr         enable Include libsoxr resampling [no]
255   --enable-libspeex        enable Speex de/encoding via libspeex [no]
256   --enable-libssh          enable SFTP protocol via libssh [no]
257   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
258   --enable-libtheora       enable Theora encoding via libtheora [no]
259   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
260   --enable-libv4l2         enable libv4l2/v4l-utils [no]
261   --enable-libvidstab      enable video stabilization using vid.stab [no]
262   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
263   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
264                            native implementation exists [no]
265   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
266   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
267   --enable-libwebp         enable WebP encoding via libwebp [no]
268   --enable-libx264         enable H.264 encoding via x264 [no]
269   --enable-libx265         enable HEVC encoding via x265 [no]
270   --enable-libxavs         enable AVS encoding via xavs [no]
271   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
272   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
273   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
274   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
275   --enable-libxvid         enable Xvid encoding via xvidcore,
276                            native MPEG-4/Xvid encoder exists [no]
277   --enable-libzimg         enable z.lib, needed for zscale filter [no]
278   --enable-libzmq          enable message passing via libzmq [no]
279   --enable-libzvbi         enable teletext support via libzvbi [no]
280   --disable-lzma           disable lzma [autodetect]
281   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
282   --enable-mediacodec      enable Android MediaCodec support [no]
283   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl2           disable sdl2 [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --disable-xlib           disable xlib [autodetect]
295   --disable-zlib           disable zlib [autodetect]
296
297   The following libraries provide various hardware acceleration features:
298   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
299   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
300   --disable-cuvid          disable Nvidia CUVID support [autodetect]
301   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
302   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
303   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
304   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
305   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
306   --disable-nvenc          disable Nvidia video encoding code [autodetect]
307   --enable-omx             enable OpenMAX IL code [no]
308   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
309   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
310   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
311   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
312   --disable-videotoolbox   disable VideoToolbox code [autodetect]
313
314 Toolchain options:
315   --arch=ARCH              select architecture [$arch]
316   --cpu=CPU                select the minimum required CPU (affects
317                            instruction selection, may crash on older CPUs)
318   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
319   --progs-suffix=SUFFIX    program name suffix []
320   --enable-cross-compile   assume a cross-compiler is used
321   --sysroot=PATH           root of cross-build tree
322   --sysinclude=PATH        location of cross-build system headers
323   --target-os=OS           compiler targets OS [$target_os]
324   --target-exec=CMD        command to run executables on target
325   --target-path=DIR        path to view of build directory on target
326   --target-samples=DIR     path to samples directory on target
327   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
328   --toolchain=NAME         set tool defaults according to NAME
329   --nm=NM                  use nm tool NM [$nm_default]
330   --ar=AR                  use archive tool AR [$ar_default]
331   --as=AS                  use assembler AS [$as_default]
332   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
333   --strip=STRIP            use strip tool STRIP [$strip_default]
334   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
335   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
336   --cc=CC                  use C compiler CC [$cc_default]
337   --cxx=CXX                use C compiler CXX [$cxx_default]
338   --objcc=OCC              use ObjC compiler OCC [$cc_default]
339   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
340   --ld=LD                  use linker LD [$ld_default]
341   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
342   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
343   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
344   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
345   --host-cc=HOSTCC         use host C compiler HOSTCC
346   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
347   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
348   --host-ld=HOSTLD         use host linker HOSTLD
349   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
350   --host-libs=HLIBS        use libs HLIBS when linking for host
351   --host-os=OS             compiler host OS [$target_os]
352   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
353   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
354   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
355   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
356   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
357   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
358   --extra-libs=ELIBS       add ELIBS [$ELIBS]
359   --extra-version=STRING   version string suffix []
360   --optflags=OPTFLAGS      override optimization-related compiler flags
361   --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-yasm           disable use of nasm/yasm 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
442 NOTE: Object files are built at the place where configure is launched.
443 EOF
444   exit 0
445 }
446
447 quotes='""'
448 if test -t 1 && which tput >/dev/null 2>&1; then
449     ncolors=$(tput colors)
450     if test -n "$ncolors" && test $ncolors -ge 8; then
451         bold_color=$(tput bold)
452         warn_color=$(tput setaf 3)
453         error_color=$(tput setaf 1)
454         reset_color=$(tput sgr0)
455     fi
456     # 72 used instead of 80 since that's the default of pr
457     ncols=$(tput cols)
458 fi
459 : ${ncols:=72}
460
461 log(){
462     echo "$@" >> $logfile
463 }
464
465 log_file(){
466     log BEGIN $1
467     pr -n -t $1 >> $logfile
468     log END $1
469 }
470
471 warn(){
472     log "WARNING: $*"
473     WARNINGS="${WARNINGS}WARNING: $*\n"
474 }
475
476 die(){
477     log "$@"
478     echo "$error_color$bold_color$@$reset_color"
479     cat <<EOF
480
481 If you think configure made a mistake, make sure you are using the latest
482 version from Git.  If the latest version fails, report the problem to the
483 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
484 EOF
485     if disabled logging; then
486         cat <<EOF
487 Rerun configure with logging enabled (do not use --disable-logging), and
488 include the log this produces with your report.
489 EOF
490     else
491         cat <<EOF
492 Include the log file "$logfile" produced by configure as this will help
493 solve the problem.
494 EOF
495     fi
496     exit 1
497 }
498
499 # Avoid locale weirdness, besides we really just want to translate ASCII.
500 toupper(){
501     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
502 }
503
504 tolower(){
505     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
506 }
507
508 c_escape(){
509     echo "$*" | sed 's/["\\]/\\\0/g'
510 }
511
512 sh_quote(){
513     v=$(echo "$1" | sed "s/'/'\\\\''/g")
514     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
515     echo "$v"
516 }
517
518 cleanws(){
519     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
520 }
521
522 filter(){
523     pat=$1
524     shift
525     for v; do
526         eval "case $v in $pat) printf '%s ' $v ;; esac"
527     done
528 }
529
530 filter_out(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
535     done
536 }
537
538 map(){
539     m=$1
540     shift
541     for v; do eval $m; done
542 }
543
544 add_suffix(){
545     suffix=$1
546     shift
547     for v; do echo ${v}${suffix}; done
548 }
549
550 set_all(){
551     value=$1
552     shift
553     for var in $*; do
554         eval $var=$value
555     done
556 }
557
558 set_weak(){
559     value=$1
560     shift
561     for var; do
562         eval : \${$var:=$value}
563     done
564 }
565
566 sanitize_var_name(){
567     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
568 }
569
570 set_safe(){
571     var=$1
572     shift
573     eval $(sanitize_var_name "$var")='$*'
574 }
575
576 get_safe(){
577     eval echo \$$(sanitize_var_name "$1")
578 }
579
580 pushvar(){
581     for pvar in $*; do
582         eval level=\${${pvar}_level:=0}
583         eval ${pvar}_${level}="\$$pvar"
584         eval ${pvar}_level=$(($level+1))
585     done
586 }
587
588 popvar(){
589     for pvar in $*; do
590         eval level=\${${pvar}_level:-0}
591         test $level = 0 && continue
592         eval level=$(($level-1))
593         eval $pvar="\${${pvar}_${level}}"
594         eval ${pvar}_level=$level
595         eval unset ${pvar}_${level}
596     done
597 }
598
599 request(){
600     for var in $*; do
601         eval ${var}_requested=yes
602         eval $var=
603     done
604 }
605
606 enable(){
607     set_all yes $*
608 }
609
610 disable(){
611     set_all no $*
612 }
613
614 enable_weak(){
615     set_weak yes $*
616 }
617
618 disable_weak(){
619     set_weak no $*
620 }
621
622 enable_safe(){
623     for var; do
624         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
625     done
626 }
627
628 disable_safe(){
629     for var; do
630         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
631     done
632 }
633
634 do_enable_deep(){
635     for var; do
636         enabled $var && continue
637         eval sel="\$${var}_select"
638         eval sgs="\$${var}_suggest"
639         pushvar var sgs
640         enable_deep $sel
641         popvar sgs
642         enable_deep_weak $sgs
643         popvar var
644     done
645 }
646
647 enable_deep(){
648     do_enable_deep $*
649     enable $*
650 }
651
652 enable_deep_weak(){
653     for var; do
654         disabled $var && continue
655         pushvar var
656         do_enable_deep $var
657         popvar var
658         enable_weak $var
659     done
660 }
661
662 requested(){
663     test "${1#!}" = "$1" && op='=' || op=!=
664     eval test "x\$${1#!}_requested" $op "xyes"
665 }
666
667 enabled(){
668     test "${1#!}" = "$1" && op='=' || op=!=
669     eval test "x\$${1#!}" $op "xyes"
670 }
671
672 disabled(){
673     test "${1#!}" = "$1" && op='=' || op=!=
674     eval test "x\$${1#!}" $op "xno"
675 }
676
677 enabled_all(){
678     for opt; do
679         enabled $opt || return 1
680     done
681 }
682
683 disabled_all(){
684     for opt; do
685         disabled $opt || return 1
686     done
687 }
688
689 enabled_any(){
690     for opt; do
691         enabled $opt && return 0
692     done
693 }
694
695 disabled_any(){
696     for opt; do
697         disabled $opt && return 0
698     done
699     return 1
700 }
701
702 set_default(){
703     for opt; do
704         eval : \${$opt:=\$${opt}_default}
705     done
706 }
707
708 is_in(){
709     value=$1
710     shift
711     for var in $*; do
712         [ $var = $value ] && return 0
713     done
714     return 1
715 }
716
717 do_check_deps(){
718     for cfg; do
719         cfg="${cfg#!}"
720         enabled ${cfg}_checking && die "Circular dependency for $cfg."
721         disabled ${cfg}_checking && continue
722         enable ${cfg}_checking
723         append allopts $cfg
724
725         eval dep_all="\$${cfg}_deps"
726         eval dep_any="\$${cfg}_deps_any"
727         eval dep_sel="\$${cfg}_select"
728         eval dep_sgs="\$${cfg}_suggest"
729         eval dep_ifa="\$${cfg}_if"
730         eval dep_ifn="\$${cfg}_if_any"
731
732         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
733         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
734         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
735
736         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
737         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
738         enabled_all  $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
739         enabled_any  $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
740         disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
741
742         if enabled $cfg; then
743             enable_deep $dep_sel
744             enable_deep_weak $dep_sgs
745         fi
746
747         disable ${cfg}_checking
748     done
749 }
750
751 check_deps(){
752     unset allopts
753
754     do_check_deps "$@"
755
756     for cfg in $allopts; do
757         enabled $cfg || continue
758         eval dep_extralibs="\$${cfg}_extralibs"
759         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
760     done
761 }
762
763 print_config(){
764     pfx=$1
765     files=$2
766     shift 2
767     map 'eval echo "$v \${$v:-no}"' "$@" |
768     awk "BEGIN { split(\"$files\", files) }
769         {
770             c = \"$pfx\" toupper(\$1);
771             v = \$2;
772             sub(/yes/, 1, v);
773             sub(/no/,  0, v);
774             for (f in files) {
775                 file = files[f];
776                 if (file ~ /\\.h\$/) {
777                     printf(\"#define %s %d\\n\", c, v) >>file;
778                 } else if (file ~ /\\.asm\$/) {
779                     printf(\"%%define %s %d\\n\", c, v) >>file;
780                 } else if (file ~ /\\.mak\$/) {
781                     n = -v ? \"\" : \"!\";
782                     printf(\"%s%s=yes\\n\", n, c) >>file;
783                 } else if (file ~ /\\.texi\$/) {
784                     pre = -v ? \"\" : \"@c \";
785                     yesno = \$2;
786                     c2 = tolower(c);
787                     gsub(/_/, \"-\", c2);
788                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
789                 }
790             }
791         }"
792 }
793
794 print_enabled(){
795     suf=$1
796     shift
797     for v; do
798         enabled $v && printf "%s\n" ${v%$suf}
799     done
800 }
801
802 append(){
803     var=$1
804     shift
805     eval "$var=\"\$$var $*\""
806 }
807
808 prepend(){
809     var=$1
810     shift
811     eval "$var=\"$* \$$var\""
812 }
813
814 unique(){
815     var=$1
816     uniq_list=""
817     for tok in $(eval echo \$$var); do
818         uniq_list="$(filter_out $tok $uniq_list) $tok"
819     done
820     eval "$var=\"${uniq_list}\""
821 }
822
823 add_cppflags(){
824     append CPPFLAGS "$@"
825 }
826
827 add_cflags(){
828     append CFLAGS $($cflags_filter "$@")
829 }
830
831 add_cxxflags(){
832     append CXXFLAGS $($cflags_filter "$@")
833 }
834
835 add_asflags(){
836     append ASFLAGS $($asflags_filter "$@")
837 }
838
839 add_objcflags(){
840     append OBJCFLAGS $($objcflags_filter "$@")
841 }
842
843 add_ldflags(){
844     append LDFLAGS $($ldflags_filter "$@")
845 }
846
847 add_ldexeflags(){
848     append LDEXEFLAGS $($ldflags_filter "$@")
849 }
850
851 add_ldlibflags(){
852     append LDLIBFLAGS $($ldflags_filter "$@")
853 }
854
855 add_stripflags(){
856     append ASMSTRIPFLAGS "$@"
857 }
858
859 add_extralibs(){
860     prepend extralibs $($ldflags_filter "$@")
861 }
862
863 add_host_cppflags(){
864     append host_cppflags "$@"
865 }
866
867 add_host_cflags(){
868     append host_cflags $($host_cflags_filter "$@")
869 }
870
871 add_host_ldflags(){
872     append host_ldflags $($host_ldflags_filter "$@")
873 }
874
875 add_compat(){
876     append compat_objs $1
877     shift
878     map 'add_cppflags -D$v' "$@"
879 }
880
881 check_cmd(){
882     log "$@"
883     "$@" >> $logfile 2>&1
884 }
885
886 check_stat(){
887     log check_stat "$@"
888     stat "$1" >> $logfile 2>&1
889 }
890
891 cc_o(){
892     eval printf '%s\\n' $CC_O
893 }
894
895 cc_e(){
896     eval printf '%s\\n' $CC_E
897 }
898
899 check_cc(){
900     log check_cc "$@"
901     cat > $TMPC
902     log_file $TMPC
903     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
904 }
905
906 check_cxx(){
907     log check_cxx "$@"
908     cat > $TMPCPP
909     log_file $TMPCPP
910     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
911 }
912
913 check_objcc(){
914     log check_objcc "$@"
915     cat > $TMPM
916     log_file $TMPM
917     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
918 }
919
920 check_cpp(){
921     log check_cpp "$@"
922     cat > $TMPC
923     log_file $TMPC
924     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
925 }
926
927 as_o(){
928     eval printf '%s\\n' $AS_O
929 }
930
931 check_as(){
932     log check_as "$@"
933     cat > $TMPS
934     log_file $TMPS
935     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
936 }
937
938 check_inline_asm(){
939     log check_inline_asm "$@"
940     name="$1"
941     code="$2"
942     shift 2
943     disable $name
944     check_cc "$@" <<EOF && enable $name
945 void foo(void){ __asm__ volatile($code); }
946 EOF
947 }
948
949 check_inline_asm_flags(){
950     log check_inline_asm_flags "$@"
951     name="$1"
952     code="$2"
953     flags=''
954     shift 2
955     while [ "$1" != "" ]; do
956       append flags $1
957       shift
958     done;
959     disable $name
960     cat > $TMPC <<EOF
961 void foo(void){ __asm__ volatile($code); }
962 EOF
963     log_file $TMPC
964     check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
965     enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
966 }
967
968 check_insn(){
969     log check_insn "$@"
970     check_inline_asm ${1}_inline "\"$2\""
971     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
972 }
973
974 check_yasm(){
975     log check_yasm "$@"
976     echo "$1" > $TMPS
977     log_file $TMPS
978     shift 1
979     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
980 }
981
982 ld_o(){
983     eval printf '%s\\n' $LD_O
984 }
985
986 check_ld(){
987     log check_ld "$@"
988     type=$1
989     shift 1
990     flags=$(filter_out '-l*|*.so' $@)
991     libs=$(filter '-l*|*.so' $@)
992     check_$type $($cflags_filter $flags) || return
993     flags=$($ldflags_filter $flags)
994     libs=$($ldflags_filter $libs)
995     check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
996 }
997
998 print_include(){
999     hdr=$1
1000     test "${hdr%.h}" = "${hdr}" &&
1001         echo "#include $hdr"    ||
1002         echo "#include <$hdr>"
1003 }
1004
1005 check_code(){
1006     log check_code "$@"
1007     check=$1
1008     headers=$2
1009     code=$3
1010     shift 3
1011     {
1012         for hdr in $headers; do
1013             print_include $hdr
1014         done
1015         echo "int main(void) { $code; return 0; }"
1016     } | check_$check "$@"
1017 }
1018
1019 check_cppflags(){
1020     log check_cppflags "$@"
1021     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
1022 int x;
1023 EOF
1024 }
1025
1026 test_cflags(){
1027     log test_cflags "$@"
1028     set -- $($cflags_filter "$@")
1029     check_cc "$@" <<EOF
1030 int x;
1031 EOF
1032 }
1033
1034 check_cflags(){
1035     log check_cflags "$@"
1036     test_cflags "$@" && add_cflags "$@"
1037 }
1038
1039 check_cxxflags(){
1040     log check_cxxflags "$@"
1041     set -- $($cflags_filter "$@")
1042     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_objcflags(){
1048     log test_objcflags "$@"
1049     set -- $($objcflags_filter "$@")
1050     check_objcc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_objcflags(){
1056     log check_objcflags "$@"
1057     test_objcflags "$@" && add_objcflags "$@"
1058 }
1059
1060 test_ldflags(){
1061     log test_ldflags "$@"
1062     check_ld "cc" "$@" <<EOF
1063 int main(void){ return 0; }
1064 EOF
1065 }
1066
1067 check_ldflags(){
1068     log check_ldflags "$@"
1069     test_ldflags "$@" && add_ldflags "$@"
1070 }
1071
1072 test_stripflags(){
1073     log test_stripflags "$@"
1074     # call check_cc to get a fresh TMPO
1075     check_cc <<EOF
1076 int main(void) { return 0; }
1077 EOF
1078     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1079 }
1080
1081 check_stripflags(){
1082     log check_stripflags "$@"
1083     test_stripflags "$@" && add_stripflags "$@"
1084 }
1085
1086 check_header(){
1087     log check_header "$@"
1088     header=$1
1089     shift
1090     disable_safe $header
1091     check_cpp "$@" <<EOF && enable_safe $header
1092 #include <$header>
1093 int x;
1094 EOF
1095 }
1096
1097 check_header_objcc(){
1098     log check_header_objcc "$@"
1099     rm -f -- "$TMPO"
1100     header=$1
1101     shift
1102     disable_safe $header
1103     {
1104        echo "#include <$header>"
1105        echo "int main(void) { return 0; }"
1106     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1107 }
1108
1109 check_func(){
1110     log check_func "$@"
1111     func=$1
1112     shift
1113     disable $func
1114     check_ld "cc" "$@" <<EOF && enable $func
1115 extern int $func();
1116 int main(void){ $func(); }
1117 EOF
1118 }
1119
1120 check_complexfunc(){
1121     log check_complexfunc "$@"
1122     func=$1
1123     narg=$2
1124     shift 2
1125     test $narg = 2 && args="f, g" || args="f * I"
1126     disable $func
1127     check_ld "cc" "$@" <<EOF && enable $func
1128 #include <complex.h>
1129 #include <math.h>
1130 float foo(complex float f, complex float g) { return $func($args); }
1131 int main(void){ return (int) foo; }
1132 EOF
1133 }
1134
1135 check_mathfunc(){
1136     log check_mathfunc "$@"
1137     func=$1
1138     narg=$2
1139     shift 2
1140     test $narg = 2 && args="f, g" || args="f"
1141     disable $func
1142     check_ld "cc" "$@" <<EOF && enable $func
1143 #include <math.h>
1144 float foo(float f, float g) { return $func($args); }
1145 int main(void){ return (int) foo; }
1146 EOF
1147 }
1148
1149 check_func_headers(){
1150     log check_func_headers "$@"
1151     headers=$1
1152     funcs=$2
1153     shift 2
1154     {
1155         for hdr in $headers; do
1156             print_include $hdr
1157         done
1158         echo "#include <stdint.h>"
1159         for func in $funcs; do
1160             echo "long check_$func(void) { return (long) $func; }"
1161         done
1162         echo "int main(void) { int ret = 0;"
1163         # LTO could optimize out the test functions without this
1164         for func in $funcs; do
1165             echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
1166         done
1167         echo "return ret; }"
1168     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1169 }
1170
1171 check_class_headers_cpp(){
1172     log check_class_headers_cpp "$@"
1173     headers=$1
1174     classes=$2
1175     shift 2
1176     {
1177         for hdr in $headers; do
1178             echo "#include <$hdr>"
1179         done
1180         echo "int main(void) { "
1181         i=1
1182         for class in $classes; do
1183             echo "$class obj$i;"
1184             i=$(expr $i + 1)
1185         done
1186         echo "return 0; }"
1187     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1188 }
1189
1190 check_cpp_condition(){
1191     log check_cpp_condition "$@"
1192     header=$1
1193     condition=$2
1194     shift 2
1195     check_cpp "$@" <<EOF
1196 #include <$header>
1197 #if !($condition)
1198 #error "unsatisfied condition: $condition"
1199 #endif
1200 EOF
1201 }
1202
1203 test_cflags_cc(){
1204     log test_cflags_cc "$@"
1205     flags=$1
1206     header=$2
1207     condition=$3
1208     shift 3
1209     set -- $($cflags_filter "$flags")
1210     check_cc "$@" <<EOF
1211 #include <$header>
1212 #if !($condition)
1213 #error "unsatisfied condition: $condition"
1214 #endif
1215 EOF
1216 }
1217
1218 check_lib(){
1219     log check_lib "$@"
1220     headers="$1"
1221     funcs="$2"
1222     shift 2
1223     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1224 }
1225
1226 check_lib_cpp(){
1227     log check_lib_cpp "$@"
1228     headers="$1"
1229     classes="$2"
1230     shift 2
1231     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1232 }
1233
1234 check_pkg_config(){
1235     log check_pkg_config "$@"
1236     pkgandversion="$1"
1237     pkg="${1%% *}"
1238     headers="$2"
1239     funcs="$3"
1240     shift 3
1241     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1242     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1243     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1244     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1245         set_safe "${pkg}_cflags" $pkg_cflags   &&
1246         set_safe "${pkg}_libs"   $pkg_libs
1247 }
1248
1249 check_exec(){
1250     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1251 }
1252
1253 check_exec_crash(){
1254     log check_exec_crash "$@"
1255     code=$(cat)
1256
1257     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1258     # are safe but may not be available everywhere.  Thus we use
1259     # raise(SIGTERM) instead.  The check is run in a subshell so we
1260     # can redirect the "Terminated" message from the shell.  SIGBUS
1261     # is not defined by standard C so it is used conditionally.
1262
1263     (check_exec "$@") >> $logfile 2>&1 <<EOF
1264 #include <signal.h>
1265 static void sighandler(int sig){
1266     raise(SIGTERM);
1267 }
1268 int foo(void){
1269     $code
1270 }
1271 int (*func_ptr)(void) = foo;
1272 int main(void){
1273     signal(SIGILL, sighandler);
1274     signal(SIGFPE, sighandler);
1275     signal(SIGSEGV, sighandler);
1276 #ifdef SIGBUS
1277     signal(SIGBUS, sighandler);
1278 #endif
1279     return func_ptr();
1280 }
1281 EOF
1282 }
1283
1284 check_type(){
1285     log check_type "$@"
1286     headers=$1
1287     type=$2
1288     shift 2
1289     disable_safe "$type"
1290     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1291 }
1292
1293 check_struct(){
1294     log check_struct "$@"
1295     headers=$1
1296     struct=$2
1297     member=$3
1298     shift 3
1299     disable_safe "${struct}_${member}"
1300     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1301         enable_safe "${struct}_${member}"
1302 }
1303
1304 check_builtin(){
1305     log check_builtin "$@"
1306     name=$1
1307     headers=$2
1308     builtin=$3
1309     shift 3
1310     disable "$name"
1311     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1312 }
1313
1314 check_compile_assert(){
1315     log check_compile_assert "$@"
1316     name=$1
1317     headers=$2
1318     condition=$3
1319     shift 3
1320     disable "$name"
1321     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1322 }
1323
1324 require(){
1325     log require "$@"
1326     name="$1"
1327     headers="$2"
1328     func="$3"
1329     shift 3
1330     check_lib "$headers" $func "$@" || die "ERROR: $name not found"
1331 }
1332
1333 require_cpp(){
1334     name="$1"
1335     headers="$2"
1336     classes="$3"
1337     shift 3
1338     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1339 }
1340
1341 use_pkg_config(){
1342     log use_pkg_config "$@"
1343     pkg="$1"
1344     check_pkg_config "$@" || return 1
1345     add_cflags    $(get_safe "${pkg}_cflags")
1346     add_extralibs $(get_safe "${pkg}_libs")
1347 }
1348
1349 require_pkg_config(){
1350     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1351 }
1352
1353 require_libfreetype(){
1354     log require_libfreetype "$@"
1355     pkg="freetype2"
1356     check_cmd $pkg_config --exists --print-errors $pkg \
1357       || die "ERROR: $pkg not found"
1358     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1359     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1360     {
1361         echo "#include <ft2build.h>"
1362         echo "#include FT_FREETYPE_H"
1363         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1364         echo "int main(void) { return 0; }"
1365     } | check_ld "cc" $pkg_cflags $pkg_libs \
1366       && set_safe "${pkg}_cflags" $pkg_cflags \
1367       && set_safe "${pkg}_libs"   $pkg_libs \
1368       || die "ERROR: $pkg not found"
1369     add_cflags    $(get_safe "${pkg}_cflags")
1370     add_extralibs $(get_safe "${pkg}_libs")
1371 }
1372
1373 hostcc_e(){
1374     eval printf '%s\\n' $HOSTCC_E
1375 }
1376
1377 hostcc_o(){
1378     eval printf '%s\\n' $HOSTCC_O
1379 }
1380
1381 check_host_cc(){
1382     log check_host_cc "$@"
1383     cat > $TMPC
1384     log_file $TMPC
1385     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1386 }
1387
1388 check_host_cpp(){
1389     log check_host_cpp "$@"
1390     cat > $TMPC
1391     log_file $TMPC
1392     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1393 }
1394
1395 check_host_cppflags(){
1396     log check_host_cppflags "$@"
1397     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1398 int x;
1399 EOF
1400 }
1401
1402 check_host_cflags(){
1403     log check_host_cflags "$@"
1404     set -- $($host_cflags_filter "$@")
1405     check_host_cc "$@" <<EOF && append host_cflags "$@"
1406 int x;
1407 EOF
1408 }
1409
1410 check_host_cpp_condition(){
1411     log check_host_cpp_condition "$@"
1412     header=$1
1413     condition=$2
1414     shift 2
1415     check_host_cpp "$@" <<EOF
1416 #include <$header>
1417 #if !($condition)
1418 #error "unsatisfied condition: $condition"
1419 #endif
1420 EOF
1421 }
1422
1423 cp_if_changed(){
1424     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1425     mkdir -p "$(dirname $2)"
1426     $cp_f "$1" "$2"
1427 }
1428
1429 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1430 # system-dependent things.
1431
1432 AVCODEC_COMPONENTS="
1433     bsfs
1434     decoders
1435     encoders
1436     hwaccels
1437     parsers
1438 "
1439
1440 AVDEVICE_COMPONENTS="
1441     indevs
1442     outdevs
1443 "
1444 AVFILTER_COMPONENTS="
1445     filters
1446 "
1447 AVFORMAT_COMPONENTS="
1448     demuxers
1449     muxers
1450     protocols
1451 "
1452
1453 AVRESAMPLE_COMPONENTS=""
1454 AVUTIL_COMPONENTS=""
1455
1456 COMPONENT_LIST="
1457     $AVCODEC_COMPONENTS
1458     $AVDEVICE_COMPONENTS
1459     $AVFILTER_COMPONENTS
1460     $AVFORMAT_COMPONENTS
1461     $AVRESAMPLE_COMPONENTS
1462     $AVUTIL_COMPONENTS
1463 "
1464
1465 EXAMPLE_LIST="
1466     avio_dir_cmd_example
1467     avio_reading_example
1468     decode_audio_example
1469     decode_video_example
1470     demuxing_decoding_example
1471     encode_audio_example
1472     encode_video_example
1473     extract_mvs_example
1474     filter_audio_example
1475     filtering_audio_example
1476     filtering_video_example
1477     http_multiclient_example
1478     metadata_example
1479     muxing_example
1480     qsvdec_example
1481     remuxing_example
1482     resampling_audio_example
1483     scaling_video_example
1484     transcode_aac_example
1485     transcoding_example
1486 "
1487 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1488     bzlib
1489     iconv
1490     libxcb
1491     libxcb_shm
1492     libxcb_shape
1493     libxcb_xfixes
1494     lzma
1495     schannel
1496     sdl
1497     sdl2
1498     securetransport
1499     xlib
1500     zlib
1501 "
1502
1503 EXTERNAL_LIBRARY_GPL_LIST="
1504     avisynth
1505     frei0r
1506     libcdio
1507     librubberband
1508     libvidstab
1509     libx264
1510     libx265
1511     libxavs
1512     libxvid
1513 "
1514
1515 EXTERNAL_LIBRARY_NONFREE_LIST="
1516     libfdk_aac
1517     openssl
1518 "
1519
1520 EXTERNAL_LIBRARY_VERSION3_LIST="
1521     gmp
1522     libopencore_amrnb
1523     libopencore_amrwb
1524     libvo_amrwbenc
1525 "
1526
1527 EXTERNAL_LIBRARY_GPLV3_LIST="
1528     libsmbclient
1529 "
1530
1531 EXTERNAL_LIBRARY_LIST="
1532     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1533     $EXTERNAL_LIBRARY_GPL_LIST
1534     $EXTERNAL_LIBRARY_NONFREE_LIST
1535     $EXTERNAL_LIBRARY_VERSION3_LIST
1536     $EXTERNAL_LIBRARY_GPLV3_LIST
1537     chromaprint
1538     crystalhd
1539     decklink
1540     gcrypt
1541     gnutls
1542     jni
1543     ladspa
1544     libass
1545     libbluray
1546     libbs2b
1547     libcaca
1548     libcelt
1549     libdc1394
1550     libflite
1551     libfontconfig
1552     libfreetype
1553     libfribidi
1554     libgme
1555     libgsm
1556     libiec61883
1557     libilbc
1558     libkvazaar
1559     libmodplug
1560     libmp3lame
1561     libnut
1562     libopencv
1563     libopenh264
1564     libopenjpeg
1565     libopenmpt
1566     libopus
1567     libpulse
1568     librtmp
1569     libschroedinger
1570     libshine
1571     libsmbclient
1572     libsnappy
1573     libsoxr
1574     libspeex
1575     libssh
1576     libtesseract
1577     libtheora
1578     libtwolame
1579     libv4l2
1580     libvorbis
1581     libvpx
1582     libwavpack
1583     libwebp
1584     libzimg
1585     libzmq
1586     libzvbi
1587     mediacodec
1588     netcdf
1589     openal
1590     opencl
1591     opengl
1592     videotoolbox
1593 "
1594 HWACCEL_AUTODETECT_LIBRARY_LIST="
1595     audiotoolbox
1596     cuda
1597     cuvid
1598     d3d11va
1599     dxva2
1600     nvenc
1601     vaapi
1602     vda
1603     vdpau
1604     videotoolbox_hwaccel
1605     xvmc
1606 "
1607
1608 HWACCEL_LIBRARY_NONFREE_LIST="
1609     libnpp
1610 "
1611
1612 HWACCEL_LIBRARY_LIST="
1613     $HWACCEL_AUTODETECT_LIBRARY_LIST
1614     $HWACCEL_LIBRARY_NONFREE_LIST
1615     libmfx
1616     mmal
1617     omx
1618 "
1619
1620 DOCUMENT_LIST="
1621     doc
1622     htmlpages
1623     manpages
1624     podpages
1625     txtpages
1626 "
1627
1628 FEATURE_LIST="
1629     ftrapv
1630     gray
1631     hardcoded_tables
1632     omx_rpi
1633     runtime_cpudetect
1634     safe_bitstream_reader
1635     shared
1636     small
1637     static
1638     swscale_alpha
1639 "
1640
1641 LIBRARY_LIST="
1642     avcodec
1643     avdevice
1644     avfilter
1645     avformat
1646     avresample
1647     avutil
1648     postproc
1649     swresample
1650     swscale
1651 "
1652
1653 LICENSE_LIST="
1654     gpl
1655     nonfree
1656     version3
1657 "
1658
1659 PROGRAM_LIST="
1660     ffplay
1661     ffprobe
1662     ffserver
1663     ffmpeg
1664 "
1665
1666 SUBSYSTEM_LIST="
1667     dct
1668     dwt
1669     error_resilience
1670     faan
1671     fast_unaligned
1672     fft
1673     lsp
1674     lzo
1675     mdct
1676     pixelutils
1677     network
1678     rdft
1679 "
1680
1681 CONFIG_LIST="
1682     $COMPONENT_LIST
1683     $DOCUMENT_LIST
1684     $EXAMPLE_LIST
1685     $EXTERNAL_LIBRARY_LIST
1686     $HWACCEL_LIBRARY_LIST
1687     $FEATURE_LIST
1688     $LICENSE_LIST
1689     $LIBRARY_LIST
1690     $PROGRAM_LIST
1691     $SUBSYSTEM_LIST
1692     fontconfig
1693     memory_poisoning
1694     neon_clobber_test
1695     pic
1696     raise_major
1697     thumb
1698     valgrind_backtrace
1699     xmm_clobber_test
1700 "
1701
1702 THREADS_LIST="
1703     pthreads
1704     os2threads
1705     w32threads
1706 "
1707
1708 ATOMICS_LIST="
1709     atomics_gcc
1710     atomics_suncc
1711     atomics_win32
1712 "
1713
1714 AUTODETECT_LIBS="
1715     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1716     $HWACCEL_AUTODETECT_LIBRARY_LIST
1717     $THREADS_LIST
1718 "
1719
1720 ARCH_LIST="
1721     aarch64
1722     alpha
1723     arm
1724     avr32
1725     avr32_ap
1726     avr32_uc
1727     bfin
1728     ia64
1729     m68k
1730     mips
1731     mips64
1732     parisc
1733     ppc
1734     ppc64
1735     s390
1736     sh4
1737     sparc
1738     sparc64
1739     tilegx
1740     tilepro
1741     tomi
1742     x86
1743     x86_32
1744     x86_64
1745 "
1746
1747 ARCH_EXT_LIST_ARM="
1748     armv5te
1749     armv6
1750     armv6t2
1751     armv8
1752     neon
1753     vfp
1754     vfpv3
1755     setend
1756 "
1757
1758 ARCH_EXT_LIST_MIPS="
1759     mipsfpu
1760     mips32r2
1761     mips32r5
1762     mips64r2
1763     mips32r6
1764     mips64r6
1765     mipsdsp
1766     mipsdspr2
1767     msa
1768 "
1769
1770 ARCH_EXT_LIST_LOONGSON="
1771     loongson2
1772     loongson3
1773     mmi
1774 "
1775
1776 ARCH_EXT_LIST_X86_SIMD="
1777     aesni
1778     amd3dnow
1779     amd3dnowext
1780     avx
1781     avx2
1782     fma3
1783     fma4
1784     mmx
1785     mmxext
1786     sse
1787     sse2
1788     sse3
1789     sse4
1790     sse42
1791     ssse3
1792     xop
1793 "
1794
1795 ARCH_EXT_LIST_PPC="
1796     altivec
1797     dcbzl
1798     ldbrx
1799     power8
1800     ppc4xx
1801     vsx
1802 "
1803
1804 ARCH_EXT_LIST_X86="
1805     $ARCH_EXT_LIST_X86_SIMD
1806     cpunop
1807     i686
1808 "
1809
1810 ARCH_EXT_LIST="
1811     $ARCH_EXT_LIST_ARM
1812     $ARCH_EXT_LIST_PPC
1813     $ARCH_EXT_LIST_X86
1814     $ARCH_EXT_LIST_MIPS
1815     $ARCH_EXT_LIST_LOONGSON
1816 "
1817
1818 ARCH_FEATURES="
1819     aligned_stack
1820     fast_64bit
1821     fast_clz
1822     fast_cmov
1823     local_aligned_8
1824     local_aligned_16
1825     local_aligned_32
1826     simd_align_16
1827     simd_align_32
1828 "
1829
1830 BUILTIN_LIST="
1831     atomic_cas_ptr
1832     machine_rw_barrier
1833     MemoryBarrier
1834     mm_empty
1835     rdtsc
1836     sarestart
1837     sem_timedwait
1838     sync_val_compare_and_swap
1839 "
1840 HAVE_LIST_CMDLINE="
1841     inline_asm
1842     symver
1843     yasm
1844 "
1845
1846 HAVE_LIST_PUB="
1847     bigendian
1848     fast_unaligned
1849 "
1850
1851 HEADERS_LIST="
1852     alsa_asoundlib_h
1853     altivec_h
1854     arpa_inet_h
1855     asm_types_h
1856     cdio_paranoia_h
1857     cdio_paranoia_paranoia_h
1858     cuda_h
1859     dispatch_dispatch_h
1860     dev_bktr_ioctl_bt848_h
1861     dev_bktr_ioctl_meteor_h
1862     dev_ic_bt8xx_h
1863     dev_video_bktr_ioctl_bt848_h
1864     dev_video_meteor_ioctl_meteor_h
1865     direct_h
1866     dirent_h
1867     dlfcn_h
1868     d3d11_h
1869     dxva_h
1870     ES2_gl_h
1871     gsm_h
1872     io_h
1873     mach_mach_time_h
1874     machine_ioctl_bt848_h
1875     machine_ioctl_meteor_h
1876     malloc_h
1877     opencv2_core_core_c_h
1878     openjpeg_2_1_openjpeg_h
1879     openjpeg_2_0_openjpeg_h
1880     openjpeg_1_5_openjpeg_h
1881     OpenGL_gl3_h
1882     poll_h
1883     sndio_h
1884     soundcard_h
1885     stdatomic_h
1886     sys_mman_h
1887     sys_param_h
1888     sys_resource_h
1889     sys_select_h
1890     sys_soundcard_h
1891     sys_time_h
1892     sys_un_h
1893     sys_videoio_h
1894     termios_h
1895     udplite_h
1896     unistd_h
1897     valgrind_valgrind_h
1898     windows_h
1899     winsock2_h
1900 "
1901
1902 INTRINSICS_LIST="
1903     intrinsics_neon
1904 "
1905
1906 COMPLEX_FUNCS="
1907     cabs
1908     cexp
1909 "
1910
1911 MATH_FUNCS="
1912     atanf
1913     atan2f
1914     cbrt
1915     cbrtf
1916     copysign
1917     cosf
1918     erf
1919     exp2
1920     exp2f
1921     expf
1922     hypot
1923     isfinite
1924     isinf
1925     isnan
1926     ldexpf
1927     llrint
1928     llrintf
1929     log2
1930     log2f
1931     log10f
1932     lrint
1933     lrintf
1934     powf
1935     rint
1936     round
1937     roundf
1938     sinf
1939     trunc
1940     truncf
1941 "
1942
1943 SYSTEM_FUNCS="
1944     access
1945     aligned_malloc
1946     arc4random
1947     clock_gettime
1948     closesocket
1949     CommandLineToArgvW
1950     CoTaskMemFree
1951     CryptGenRandom
1952     dlopen
1953     fcntl
1954     flt_lim
1955     fork
1956     getaddrinfo
1957     gethrtime
1958     getopt
1959     GetProcessAffinityMask
1960     GetProcessMemoryInfo
1961     GetProcessTimes
1962     getrusage
1963     GetSystemTimeAsFileTime
1964     gettimeofday
1965     glob
1966     glXGetProcAddress
1967     gmtime_r
1968     inet_aton
1969     isatty
1970     jack_port_get_latency_range
1971     kbhit
1972     LoadLibrary
1973     localtime_r
1974     lstat
1975     lzo1x_999_compress
1976     mach_absolute_time
1977     MapViewOfFile
1978     memalign
1979     mkstemp
1980     mmap
1981     mprotect
1982     nanosleep
1983     PeekNamedPipe
1984     posix_memalign
1985     pthread_cancel
1986     sched_getaffinity
1987     SetConsoleTextAttribute
1988     SetConsoleCtrlHandler
1989     setmode
1990     setrlimit
1991     Sleep
1992     strerror_r
1993     sysconf
1994     sysctl
1995     usleep
1996     UTGetOSTypeFromString
1997     VirtualAlloc
1998     wglGetProcAddress
1999 "
2000
2001 TOOLCHAIN_FEATURES="
2002     as_dn_directive
2003     as_fpu_directive
2004     as_func
2005     as_object_arch
2006     asm_mod_q
2007     attribute_may_alias
2008     attribute_packed
2009     ebp_available
2010     ebx_available
2011     gnu_as
2012     gnu_windres
2013     ibm_asm
2014     inline_asm_direct_symbol_refs
2015     inline_asm_labels
2016     inline_asm_nonlocal_labels
2017     pragma_deprecated
2018     rsync_contimeout
2019     symver_asm_label
2020     symver_gnu_asm
2021     vfp_args
2022     xform_asm
2023     xmm_clobbers
2024 "
2025
2026 TYPES_LIST="
2027     CONDITION_VARIABLE_Ptr
2028     socklen_t
2029     struct_addrinfo
2030     struct_group_source_req
2031     struct_ip_mreq_source
2032     struct_ipv6_mreq
2033     struct_msghdr_msg_flags
2034     struct_pollfd
2035     struct_rusage_ru_maxrss
2036     struct_sctp_event_subscribe
2037     struct_sockaddr_in6
2038     struct_sockaddr_sa_len
2039     struct_sockaddr_storage
2040     struct_stat_st_mtim_tv_nsec
2041     struct_v4l2_frmivalenum_discrete
2042 "
2043
2044 HAVE_LIST="
2045     $ARCH_EXT_LIST
2046     $(add_suffix _external $ARCH_EXT_LIST)
2047     $(add_suffix _inline   $ARCH_EXT_LIST)
2048     $ARCH_FEATURES
2049     $ATOMICS_LIST
2050     $BUILTIN_LIST
2051     $COMPLEX_FUNCS
2052     $HAVE_LIST_CMDLINE
2053     $HAVE_LIST_PUB
2054     $HEADERS_LIST
2055     $INTRINSICS_LIST
2056     $MATH_FUNCS
2057     $SYSTEM_FUNCS
2058     $THREADS_LIST
2059     $TOOLCHAIN_FEATURES
2060     $TYPES_LIST
2061     atomics_native
2062     dos_paths
2063     dxva2_lib
2064     dxva2api_cobj
2065     libc_msvcrt
2066     libdc1394_1
2067     libdc1394_2
2068     makeinfo
2069     makeinfo_html
2070     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2071     perl
2072     pod2man
2073     sdl2
2074     section_data_rel_ro
2075     texi2html
2076     threads
2077     vaapi_drm
2078     vaapi_x11
2079     vdpau_x11
2080     winrt
2081 "
2082
2083 # options emitted with CONFIG_ prefix but not available on the command line
2084 CONFIG_EXTRA="
2085     aandcttables
2086     ac3dsp
2087     audio_frame_queue
2088     audiodsp
2089     blockdsp
2090     bswapdsp
2091     cabac
2092     dirac_parse
2093     dvprofile
2094     exif
2095     faandct
2096     faanidct
2097     fdctdsp
2098     flacdsp
2099     fmtconvert
2100     frame_thread_encoder
2101     g722dsp
2102     golomb
2103     gplv3
2104     h263dsp
2105     h264chroma
2106     h264dsp
2107     h264parse
2108     h264pred
2109     h264qpel
2110     hpeldsp
2111     huffman
2112     huffyuvdsp
2113     huffyuvencdsp
2114     idctdsp
2115     iirfilter
2116     mdct15
2117     intrax8
2118     iso_media
2119     ividsp
2120     jpegtables
2121     lgplv3
2122     libx262
2123     llauddsp
2124     llviddsp
2125     llvidencdsp
2126     lpc
2127     lzf
2128     me_cmp
2129     mpeg_er
2130     mpegaudio
2131     mpegaudiodsp
2132     mpegvideo
2133     mpegvideoenc
2134     mss34dsp
2135     pixblockdsp
2136     qpeldsp
2137     qsv
2138     qsvdec
2139     qsvenc
2140     rangecoder
2141     riffdec
2142     riffenc
2143     rtpdec
2144     rtpenc_chain
2145     rv34dsp
2146     sinewin
2147     snappy
2148     srtp
2149     startcode
2150     texturedsp
2151     texturedspenc
2152     tpeldsp
2153     vaapi_encode
2154     vc1dsp
2155     videodsp
2156     vp3dsp
2157     vp56dsp
2158     vp8dsp
2159     vt_bt2020
2160     wma_freqs
2161     wmv2dsp
2162 "
2163
2164 CMDLINE_SELECT="
2165     $ARCH_EXT_LIST
2166     $CONFIG_LIST
2167     $HAVE_LIST_CMDLINE
2168     $THREADS_LIST
2169     asm
2170     cross_compile
2171     debug
2172     extra_warnings
2173     logging
2174     lto
2175     optimizations
2176     rpath
2177     stripping
2178 "
2179
2180 PATHS_LIST="
2181     bindir
2182     datadir
2183     docdir
2184     incdir
2185     libdir
2186     mandir
2187     pkgconfigdir
2188     prefix
2189     shlibdir
2190     install_name_dir
2191 "
2192
2193 CMDLINE_SET="
2194     $PATHS_LIST
2195     ar
2196     arch
2197     as
2198     assert_level
2199     build_suffix
2200     cc
2201     objcc
2202     cpu
2203     cross_prefix
2204     custom_allocator
2205     cxx
2206     dep_cc
2207     doxygen
2208     env
2209     extra_version
2210     gas
2211     host_cc
2212     host_cflags
2213     host_ld
2214     host_ldflags
2215     host_libs
2216     host_os
2217     install
2218     ld
2219     ln_s
2220     logfile
2221     malloc_prefix
2222     nm
2223     optflags
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     yasmexe
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="yasm"
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 frame_thread_encoder_deps="encoders threads"
2347 intrax8_select="blockdsp idctdsp"
2348 mdct_select="fft"
2349 mdct15_select="fft"
2350 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2351 mpeg_er_select="error_resilience"
2352 mpegaudio_select="mpegaudiodsp"
2353 mpegaudiodsp_select="dct"
2354 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2355 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2356 vc1dsp_select="h264chroma qpeldsp startcode"
2357 rdft_select="fft"
2358
2359 # decoders / encoders
2360 aac_decoder_select="mdct15 mdct sinewin"
2361 aac_fixed_decoder_select="mdct sinewin"
2362 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2363 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2364 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2365 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2366 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2367 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 adpcm_g722_decoder_select="g722dsp"
2369 adpcm_g722_encoder_select="g722dsp"
2370 aic_decoder_select="golomb idctdsp"
2371 alac_encoder_select="lpc"
2372 als_decoder_select="bswapdsp"
2373 amrnb_decoder_select="lsp"
2374 amrwb_decoder_select="lsp"
2375 amv_decoder_select="sp5x_decoder exif"
2376 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2377 ape_decoder_select="bswapdsp llauddsp"
2378 apng_decoder_select="zlib"
2379 apng_encoder_select="llvidencdsp zlib"
2380 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2381 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2382 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2383 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2384 atrac1_decoder_select="mdct sinewin"
2385 atrac3_decoder_select="mdct"
2386 atrac3p_decoder_select="mdct sinewin"
2387 avrn_decoder_select="exif jpegtables"
2388 bink_decoder_select="blockdsp hpeldsp"
2389 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2390 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2391 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2392 cllc_decoder_select="bswapdsp"
2393 comfortnoise_encoder_select="lpc"
2394 cook_decoder_select="audiodsp mdct sinewin"
2395 cscd_decoder_select="lzo"
2396 cscd_decoder_suggest="zlib"
2397 dca_decoder_select="mdct"
2398 dds_decoder_select="texturedsp"
2399 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2400 dnxhd_decoder_select="blockdsp idctdsp"
2401 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2402 dvvideo_decoder_select="dvprofile idctdsp"
2403 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2404 dxa_decoder_select="zlib"
2405 dxv_decoder_select="lzf texturedsp"
2406 eac3_decoder_select="ac3_decoder"
2407 eac3_encoder_select="ac3_encoder"
2408 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2409 eatgq_decoder_select="aandcttables"
2410 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2411 exr_decoder_select="zlib"
2412 ffv1_decoder_select="golomb rangecoder"
2413 ffv1_encoder_select="rangecoder"
2414 ffvhuff_decoder_select="huffyuv_decoder"
2415 ffvhuff_encoder_select="huffyuv_encoder"
2416 fic_decoder_select="golomb"
2417 flac_decoder_select="flacdsp golomb"
2418 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2419 flashsv2_decoder_select="zlib"
2420 flashsv2_encoder_select="zlib"
2421 flashsv_decoder_select="zlib"
2422 flashsv_encoder_select="zlib"
2423 flv_decoder_select="h263_decoder"
2424 flv_encoder_select="h263_encoder"
2425 fourxm_decoder_select="blockdsp bswapdsp"
2426 fraps_decoder_select="bswapdsp huffman"
2427 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2428 g729_decoder_select="audiodsp"
2429 h261_decoder_select="mpegvideo"
2430 h261_encoder_select="aandcttables mpegvideoenc"
2431 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2432 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2433 h263i_decoder_select="h263_decoder"
2434 h263p_decoder_select="h263_decoder"
2435 h263p_encoder_select="h263_encoder"
2436 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2437 h264_decoder_suggest="error_resilience"
2438 hap_decoder_select="snappy texturedsp"
2439 hap_encoder_deps="libsnappy"
2440 hap_encoder_select="texturedspenc"
2441 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2442 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2443 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2444 iac_decoder_select="imc_decoder"
2445 imc_decoder_select="bswapdsp fft mdct sinewin"
2446 indeo3_decoder_select="hpeldsp"
2447 indeo4_decoder_select="ividsp"
2448 indeo5_decoder_select="ividsp"
2449 interplay_video_decoder_select="hpeldsp"
2450 jpegls_decoder_select="golomb mjpeg_decoder"
2451 jpegls_encoder_select="golomb"
2452 jv_decoder_select="blockdsp"
2453 lagarith_decoder_select="llviddsp"
2454 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2455 loco_decoder_select="golomb"
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 motionpixels_decoder_select="bswapdsp"
2465 mp1_decoder_select="mpegaudio"
2466 mp1float_decoder_select="mpegaudio"
2467 mp2_decoder_select="mpegaudio"
2468 mp2float_decoder_select="mpegaudio"
2469 mp3_decoder_select="mpegaudio"
2470 mp3adu_decoder_select="mpegaudio"
2471 mp3adufloat_decoder_select="mpegaudio"
2472 mp3float_decoder_select="mpegaudio"
2473 mp3on4_decoder_select="mpegaudio"
2474 mp3on4float_decoder_select="mpegaudio"
2475 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2476 mpc8_decoder_select="mpegaudiodsp"
2477 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2478 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2479 mpegvideo_decoder_select="mpegvideo"
2480 mpeg1video_decoder_select="mpegvideo"
2481 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2482 mpeg2video_decoder_select="mpegvideo"
2483 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2484 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2485 mpeg4_encoder_select="h263_encoder"
2486 msa1_decoder_select="mss34dsp"
2487 msmpeg4v1_decoder_select="h263_decoder"
2488 msmpeg4v2_decoder_select="h263_decoder"
2489 msmpeg4v2_encoder_select="h263_encoder"
2490 msmpeg4v3_decoder_select="h263_decoder"
2491 msmpeg4v3_encoder_select="h263_encoder"
2492 mss2_decoder_select="vc1_decoder mpegvideo"
2493 mts2_decoder_select="mss34dsp"
2494 mxpeg_decoder_select="mjpeg_decoder"
2495 nellymoser_decoder_select="mdct sinewin"
2496 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2497 nuv_decoder_select="idctdsp lzo"
2498 on2avc_decoder_select="mdct"
2499 opus_decoder_deps="swresample"
2500 opus_decoder_select="mdct15"
2501 opus_encoder_select="audio_frame_queue mdct15"
2502 png_decoder_select="zlib"
2503 png_encoder_select="llvidencdsp zlib"
2504 prores_decoder_select="blockdsp idctdsp"
2505 prores_encoder_select="fdctdsp"
2506 qcelp_decoder_select="lsp"
2507 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2508 ra_144_decoder_select="audiodsp"
2509 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2510 ralf_decoder_select="golomb"
2511 rawvideo_decoder_select="bswapdsp"
2512 rscc_decoder_select="zlib"
2513 rtjpeg_decoder_select="me_cmp"
2514 rv10_decoder_select="h263_decoder"
2515 rv10_encoder_select="h263_encoder"
2516 rv20_decoder_select="h263_decoder"
2517 rv20_encoder_select="h263_encoder"
2518 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2519 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2520 screenpresso_decoder_select="zlib"
2521 shorten_decoder_select="golomb bswapdsp"
2522 sipr_decoder_select="lsp"
2523 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2524 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2525 sonic_decoder_select="golomb rangecoder"
2526 sonic_encoder_select="golomb rangecoder"
2527 sonic_ls_encoder_select="golomb rangecoder"
2528 sp5x_decoder_select="mjpeg_decoder"
2529 svq1_decoder_select="hpeldsp"
2530 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2531 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2532 svq3_decoder_suggest="zlib"
2533 tak_decoder_select="audiodsp"
2534 tdsc_decoder_select="zlib mjpeg_decoder"
2535 theora_decoder_select="vp3_decoder"
2536 thp_decoder_select="mjpeg_decoder"
2537 tiff_decoder_suggest="zlib lzma"
2538 tiff_encoder_suggest="zlib"
2539 truehd_decoder_select="mlp_parser"
2540 truemotion2_decoder_select="bswapdsp"
2541 truespeech_decoder_select="bswapdsp"
2542 tscc_decoder_select="zlib"
2543 twinvq_decoder_select="mdct lsp sinewin"
2544 txd_decoder_select="texturedsp"
2545 utvideo_decoder_select="bswapdsp llviddsp"
2546 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2547 vble_decoder_select="llviddsp"
2548 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2549 vc1_qsv_decoder_deps="libmfx"
2550 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2551 vc1image_decoder_select="vc1_decoder"
2552 vorbis_decoder_select="mdct"
2553 vorbis_encoder_select="mdct"
2554 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2555 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2556 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2557 vp6a_decoder_select="vp6_decoder"
2558 vp6f_decoder_select="vp6_decoder"
2559 vp7_decoder_select="h264pred videodsp vp8dsp"
2560 vp8_decoder_select="h264pred videodsp vp8dsp"
2561 vp9_decoder_select="videodsp vp9_parser"
2562 webp_decoder_select="vp8_decoder exif"
2563 wmalossless_decoder_select="llauddsp"
2564 wmapro_decoder_select="mdct sinewin wma_freqs"
2565 wmav1_decoder_select="mdct sinewin wma_freqs"
2566 wmav1_encoder_select="mdct sinewin wma_freqs"
2567 wmav2_decoder_select="mdct sinewin wma_freqs"
2568 wmav2_encoder_select="mdct sinewin wma_freqs"
2569 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2570 wmv1_decoder_select="h263_decoder"
2571 wmv1_encoder_select="h263_encoder"
2572 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2573 wmv2_encoder_select="h263_encoder wmv2dsp"
2574 wmv3_decoder_select="vc1_decoder"
2575 wmv3image_decoder_select="wmv3_decoder"
2576 xma1_decoder_select="wmapro_decoder"
2577 xma2_decoder_select="wmapro_decoder"
2578 zerocodec_decoder_select="zlib"
2579 zlib_decoder_select="zlib"
2580 zlib_encoder_select="zlib"
2581 zmbv_decoder_select="zlib"
2582 zmbv_encoder_select="zlib"
2583
2584 # platform codecs
2585 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2586 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2587
2588 # hardware accelerators
2589 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2590 cuda_deps_any="dlopen LoadLibrary"
2591 cuvid_deps="cuda"
2592 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2593 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2594 dxva2_extralibs="-luser32"
2595 vaapi_deps="va_va_h"
2596 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2597 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2598 vda_deps="vda_framework pthreads"
2599 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2600 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2601 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2602 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2603 xvmc_deps="X11_extensions_XvMClib_h"
2604
2605 h263_vaapi_hwaccel_deps="vaapi"
2606 h263_vaapi_hwaccel_select="h263_decoder"
2607 h263_videotoolbox_hwaccel_deps="videotoolbox"
2608 h263_videotoolbox_hwaccel_select="h263_decoder"
2609 h264_cuvid_hwaccel_deps="cuda cuvid"
2610 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2611 h264_d3d11va_hwaccel_deps="d3d11va"
2612 h264_d3d11va_hwaccel_select="h264_decoder"
2613 h264_dxva2_hwaccel_deps="dxva2"
2614 h264_dxva2_hwaccel_select="h264_decoder"
2615 h264_mediacodec_hwaccel_deps="mediacodec"
2616 h264_mmal_hwaccel_deps="mmal"
2617 h264_qsv_hwaccel_deps="libmfx"
2618 h264_vaapi_hwaccel_deps="vaapi"
2619 h264_vaapi_hwaccel_select="h264_decoder"
2620 h264_vda_hwaccel_deps="vda"
2621 h264_vda_hwaccel_select="h264_decoder"
2622 h264_vda_old_hwaccel_deps="vda"
2623 h264_vda_old_hwaccel_select="h264_decoder"
2624 h264_vdpau_hwaccel_deps="vdpau"
2625 h264_vdpau_hwaccel_select="h264_decoder"
2626 h264_videotoolbox_hwaccel_deps="videotoolbox"
2627 h264_videotoolbox_hwaccel_select="h264_decoder"
2628 hevc_cuvid_hwaccel_deps="cuda cuvid"
2629 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2630 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2631 hevc_d3d11va_hwaccel_select="hevc_decoder"
2632 hevc_mediacodec_hwaccel_deps="mediacodec"
2633 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2634 hevc_dxva2_hwaccel_select="hevc_decoder"
2635 hevc_qsv_hwaccel_deps="libmfx"
2636 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2637 hevc_vaapi_hwaccel_select="hevc_decoder"
2638 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2639 hevc_vdpau_hwaccel_select="hevc_decoder"
2640 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2641 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2642 mpeg_xvmc_hwaccel_deps="xvmc"
2643 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2644 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2645 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2646 mpeg1_vdpau_hwaccel_deps="vdpau"
2647 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2648 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2649 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2650 mpeg1_xvmc_hwaccel_deps="xvmc"
2651 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2652 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2653 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2654 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2655 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2656 mpeg2_dxva2_hwaccel_deps="dxva2"
2657 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2658 mpeg2_mmal_hwaccel_deps="mmal"
2659 mpeg2_qsv_hwaccel_deps="libmfx"
2660 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2661 mpeg2_vaapi_hwaccel_deps="vaapi"
2662 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2663 mpeg2_vdpau_hwaccel_deps="vdpau"
2664 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2665 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2666 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2667 mpeg2_xvmc_hwaccel_deps="xvmc"
2668 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2669 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2670 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2671 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2672 mpeg4_mmal_hwaccel_deps="mmal"
2673 mpeg4_vaapi_hwaccel_deps="vaapi"
2674 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2675 mpeg4_vdpau_hwaccel_deps="vdpau"
2676 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2677 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2678 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2679 vc1_cuvid_hwaccel_deps="cuda cuvid"
2680 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2681 vc1_d3d11va_hwaccel_deps="d3d11va"
2682 vc1_d3d11va_hwaccel_select="vc1_decoder"
2683 vc1_dxva2_hwaccel_deps="dxva2"
2684 vc1_dxva2_hwaccel_select="vc1_decoder"
2685 vc1_mmal_hwaccel_deps="mmal"
2686 vc1_qsv_hwaccel_deps="libmfx"
2687 vc1_qsv_hwaccel_select="qsvdec_vc1"
2688 vc1_vaapi_hwaccel_deps="vaapi"
2689 vc1_vaapi_hwaccel_select="vc1_decoder"
2690 vc1_vdpau_hwaccel_deps="vdpau"
2691 vc1_vdpau_hwaccel_select="vc1_decoder"
2692 vp8_cuvid_hwaccel_deps="cuda cuvid"
2693 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2694 vp9_cuvid_hwaccel_deps="cuda cuvid"
2695 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2696 vp8_mediacodec_hwaccel_deps="mediacodec"
2697 vp8_qsv_hwaccel_deps="libmfx"
2698 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2699 vp9_d3d11va_hwaccel_select="vp9_decoder"
2700 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2701 vp9_dxva2_hwaccel_select="vp9_decoder"
2702 vp9_mediacodec_hwaccel_deps="mediacodec"
2703 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2704 vp9_vaapi_hwaccel_select="vp9_decoder"
2705 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2706 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2707 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2708 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2709
2710 # hardware-accelerated codecs
2711 omx_deps="dlopen pthreads"
2712 omx_extralibs='$ldl'
2713 qsvdec_select="qsv"
2714 qsvenc_select="qsv"
2715 vaapi_encode_deps="vaapi"
2716
2717 hwupload_cuda_filter_deps="cuda"
2718 scale_npp_filter_deps="cuda libnpp"
2719
2720 nvenc_deps="cuda"
2721 nvenc_deps_any="dlopen LoadLibrary"
2722 nvenc_encoder_deps="nvenc"
2723
2724 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2725 h264_cuvid_decoder_deps="cuda cuvid"
2726 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2727 h264_mediacodec_decoder_deps="mediacodec"
2728 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2729 h264_mmal_decoder_deps="mmal"
2730 h264_nvenc_encoder_deps="nvenc"
2731 h264_omx_encoder_deps="omx"
2732 h264_qsv_decoder_deps="libmfx"
2733 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2734 h264_qsv_encoder_deps="libmfx"
2735 h264_qsv_encoder_select="qsvenc"
2736 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2737 h264_vaapi_encoder_select="vaapi_encode golomb"
2738 h264_vda_decoder_deps="vda"
2739 h264_vda_decoder_select="h264_decoder"
2740 h264_vdpau_decoder_deps="vdpau"
2741 h264_vdpau_decoder_select="h264_decoder"
2742 hevc_cuvid_decoder_deps="cuda cuvid"
2743 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2744 hevc_mediacodec_decoder_deps="mediacodec"
2745 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2746 hevc_nvenc_encoder_deps="nvenc"
2747 hevc_qsv_decoder_deps="libmfx"
2748 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2749 hevc_qsv_encoder_deps="libmfx"
2750 hevc_qsv_encoder_select="qsvenc"
2751 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2752 hevc_vaapi_encoder_select="vaapi_encode golomb"
2753 mjpeg_cuvid_decoder_deps="cuda cuvid"
2754 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2755 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2756 mpeg1_cuvid_decoder_deps="cuda cuvid"
2757 mpeg1_vdpau_decoder_deps="vdpau"
2758 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2759 mpeg2_crystalhd_decoder_select="crystalhd"
2760 mpeg2_cuvid_decoder_deps="cuda cuvid"
2761 mpeg2_mmal_decoder_deps="mmal"
2762 mpeg2_qsv_decoder_deps="libmfx"
2763 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2764 mpeg2_qsv_encoder_deps="libmfx"
2765 mpeg2_qsv_encoder_select="qsvenc"
2766 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2767 mpeg2_vaapi_encoder_select="vaapi_encode"
2768 mpeg4_crystalhd_decoder_select="crystalhd"
2769 mpeg4_cuvid_decoder_deps="cuda cuvid"
2770 mpeg4_mediacodec_decoder_deps="mediacodec"
2771 mpeg4_mmal_decoder_deps="mmal"
2772 mpeg4_omx_encoder_deps="omx"
2773 mpeg4_vdpau_decoder_deps="vdpau"
2774 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2775 mpeg_vdpau_decoder_deps="vdpau"
2776 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2777 msmpeg4_crystalhd_decoder_select="crystalhd"
2778 nvenc_h264_encoder_deps="nvenc"
2779 nvenc_hevc_encoder_deps="nvenc"
2780 vc1_crystalhd_decoder_select="crystalhd"
2781 vc1_cuvid_decoder_deps="cuda cuvid"
2782 vc1_mmal_decoder_deps="mmal"
2783 vc1_vdpau_decoder_deps="vdpau"
2784 vc1_vdpau_decoder_select="vc1_decoder"
2785 vp8_cuvid_decoder_deps="cuda cuvid"
2786 vp8_mediacodec_decoder_deps="mediacodec"
2787 vp8_qsv_decoder_deps="libmfx"
2788 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2789 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2790 vp8_vaapi_encoder_select="vaapi_encode"
2791 vp9_cuvid_decoder_deps="cuda cuvid"
2792 vp9_mediacodec_decoder_deps="mediacodec"
2793 wmv3_crystalhd_decoder_select="crystalhd"
2794 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2795
2796 # parsers
2797 h264_parser_select="golomb h264dsp h264parse"
2798 hevc_parser_select="golomb"
2799 mpegvideo_parser_select="mpegvideo"
2800 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2801 vc1_parser_select="vc1dsp"
2802
2803 # bitstream_filters
2804 mjpeg2jpeg_bsf_select="jpegtables"
2805
2806 # external libraries
2807 aac_at_decoder_deps="audiotoolbox"
2808 ac3_at_decoder_deps="audiotoolbox"
2809 ac3_at_decoder_select="ac3_parser"
2810 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2811 alac_at_decoder_deps="audiotoolbox"
2812 amr_nb_at_decoder_deps="audiotoolbox"
2813 avisynth_deps_any="dlopen LoadLibrary"
2814 avisynth_demuxer_deps="avisynth"
2815 avisynth_demuxer_select="riffdec"
2816 eac3_at_decoder_deps="audiotoolbox"
2817 eac3_at_decoder_select="ac3_parser"
2818 gsm_ms_at_decoder_deps="audiotoolbox"
2819 ilbc_at_decoder_deps="audiotoolbox"
2820 mp1_at_decoder_deps="audiotoolbox"
2821 mp2_at_decoder_deps="audiotoolbox"
2822 mp3_at_decoder_deps="audiotoolbox"
2823 pcm_alaw_at_decoder_deps="audiotoolbox"
2824 pcm_mulaw_at_decoder_deps="audiotoolbox"
2825 qdmc_at_decoder_deps="audiotoolbox"
2826 qdm2_at_decoder_deps="audiotoolbox"
2827 aac_at_encoder_deps="audiotoolbox"
2828 aac_at_encoder_select="audio_frame_queue"
2829 alac_at_encoder_deps="audiotoolbox"
2830 alac_at_encoder_select="audio_frame_queue"
2831 ilbc_at_encoder_deps="audiotoolbox"
2832 ilbc_at_encoder_select="audio_frame_queue"
2833 pcm_alaw_at_encoder_deps="audiotoolbox"
2834 pcm_alaw_at_encoder_select="audio_frame_queue"
2835 pcm_mulaw_at_encoder_deps="audiotoolbox"
2836 pcm_mulaw_at_encoder_select="audio_frame_queue"
2837 chromaprint_muxer_deps="chromaprint"
2838 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2839 libcelt_decoder_deps="libcelt"
2840 libfdk_aac_decoder_deps="libfdk_aac"
2841 libfdk_aac_encoder_deps="libfdk_aac"
2842 libfdk_aac_encoder_select="audio_frame_queue"
2843 libgme_demuxer_deps="libgme"
2844 libgsm_decoder_deps="libgsm"
2845 libgsm_encoder_deps="libgsm"
2846 libgsm_ms_decoder_deps="libgsm"
2847 libgsm_ms_encoder_deps="libgsm"
2848 libilbc_decoder_deps="libilbc"
2849 libilbc_encoder_deps="libilbc"
2850 libkvazaar_encoder_deps="libkvazaar"
2851 libmodplug_demuxer_deps="libmodplug"
2852 libmp3lame_encoder_deps="libmp3lame"
2853 libmp3lame_encoder_select="audio_frame_queue"
2854 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2855 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2856 libopencore_amrnb_encoder_select="audio_frame_queue"
2857 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2858 libopenh264_decoder_deps="libopenh264"
2859 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2860 libopenh264_encoder_deps="libopenh264"
2861 libopenjpeg_decoder_deps="libopenjpeg"
2862 libopenjpeg_encoder_deps="libopenjpeg"
2863 libopenmpt_demuxer_deps="libopenmpt"
2864 libopus_decoder_deps="libopus"
2865 libopus_encoder_deps="libopus"
2866 libopus_encoder_select="audio_frame_queue"
2867 libschroedinger_decoder_deps="libschroedinger"
2868 libschroedinger_encoder_deps="libschroedinger"
2869 libshine_encoder_deps="libshine"
2870 libshine_encoder_select="audio_frame_queue"
2871 libspeex_decoder_deps="libspeex"
2872 libspeex_encoder_deps="libspeex"
2873 libspeex_encoder_select="audio_frame_queue"
2874 libtheora_encoder_deps="libtheora"
2875 libtwolame_encoder_deps="libtwolame"
2876 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2877 libvorbis_decoder_deps="libvorbis"
2878 libvorbis_encoder_deps="libvorbis"
2879 libvorbis_encoder_select="audio_frame_queue"
2880 libvpx_vp8_decoder_deps="libvpx"
2881 libvpx_vp8_encoder_deps="libvpx"
2882 libvpx_vp9_decoder_deps="libvpx"
2883 libvpx_vp9_encoder_deps="libvpx"
2884 libwavpack_encoder_deps="libwavpack"
2885 libwebp_encoder_deps="libwebp"
2886 libwebp_anim_encoder_deps="libwebp"
2887 libx262_encoder_deps="libx262"
2888 libx264_encoder_deps="libx264"
2889 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2890 libx264rgb_encoder_select="libx264_encoder"
2891 libx265_encoder_deps="libx265"
2892 libxavs_encoder_deps="libxavs"
2893 libxvid_encoder_deps="libxvid"
2894 libzvbi_teletext_decoder_deps="libzvbi"
2895 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2896 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2897 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2898 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2899 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2900
2901 # demuxers / muxers
2902 ac3_demuxer_select="ac3_parser"
2903 aiff_muxer_select="iso_media"
2904 asf_demuxer_select="riffdec"
2905 asf_o_demuxer_select="riffdec"
2906 asf_muxer_select="riffenc"
2907 asf_stream_muxer_select="asf_muxer"
2908 avi_demuxer_select="iso_media riffdec exif"
2909 avi_muxer_select="riffenc"
2910 caf_demuxer_select="iso_media riffdec"
2911 caf_muxer_select="iso_media"
2912 dash_muxer_select="mp4_muxer"
2913 dirac_demuxer_select="dirac_parser"
2914 dts_demuxer_select="dca_parser"
2915 dtshd_demuxer_select="dca_parser"
2916 dv_demuxer_select="dvprofile"
2917 dv_muxer_select="dvprofile"
2918 dxa_demuxer_select="riffdec"
2919 eac3_demuxer_select="ac3_parser"
2920 f4v_muxer_select="mov_muxer"
2921 fifo_muxer_deps="threads"
2922 flac_demuxer_select="flac_parser"
2923 hds_muxer_select="flv_muxer"
2924 hls_muxer_select="mpegts_muxer"
2925 image2_alias_pix_demuxer_select="image2_demuxer"
2926 image2_brender_pix_demuxer_select="image2_demuxer"
2927 ipod_muxer_select="mov_muxer"
2928 ismv_muxer_select="mov_muxer"
2929 libnut_demuxer_deps="libnut"
2930 libnut_muxer_deps="libnut"
2931 matroska_audio_muxer_select="matroska_muxer"
2932 matroska_demuxer_select="iso_media riffdec"
2933 matroska_demuxer_suggest="bzlib lzo zlib"
2934 matroska_muxer_select="iso_media riffenc"
2935 mmf_muxer_select="riffenc"
2936 mov_demuxer_select="iso_media riffdec"
2937 mov_demuxer_suggest="zlib"
2938 mov_muxer_select="iso_media riffenc rtpenc_chain"
2939 mp3_demuxer_select="mpegaudio_parser"
2940 mp4_muxer_select="mov_muxer"
2941 mpegts_demuxer_select="iso_media"
2942 mpegts_muxer_select="adts_muxer latm_muxer"
2943 mpegtsraw_demuxer_select="mpegts_demuxer"
2944 mxf_d10_muxer_select="mxf_muxer"
2945 mxf_opatom_muxer_select="mxf_muxer"
2946 nut_muxer_select="riffenc"
2947 nuv_demuxer_select="riffdec"
2948 oga_muxer_select="ogg_muxer"
2949 ogg_demuxer_select="dirac_parse"
2950 ogv_muxer_select="ogg_muxer"
2951 opus_muxer_select="ogg_muxer"
2952 psp_muxer_select="mov_muxer"
2953 rtp_demuxer_select="sdp_demuxer"
2954 rtp_muxer_select="golomb"
2955 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2956 rtsp_demuxer_select="http_protocol rtpdec"
2957 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2958 sap_demuxer_select="sdp_demuxer"
2959 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2960 sdp_demuxer_select="rtpdec"
2961 smoothstreaming_muxer_select="ismv_muxer"
2962 spdif_muxer_select="aac_parser"
2963 spx_muxer_select="ogg_muxer"
2964 swf_demuxer_suggest="zlib"
2965 tak_demuxer_select="tak_parser"
2966 tg2_muxer_select="mov_muxer"
2967 tgp_muxer_select="mov_muxer"
2968 vobsub_demuxer_select="mpegps_demuxer"
2969 w64_demuxer_select="wav_demuxer"
2970 w64_muxer_select="wav_muxer"
2971 wav_demuxer_select="riffdec"
2972 wav_muxer_select="riffenc"
2973 webm_muxer_select="iso_media riffenc"
2974 webm_dash_manifest_demuxer_select="matroska_demuxer"
2975 wtv_demuxer_select="mpegts_demuxer riffdec"
2976 wtv_muxer_select="mpegts_muxer riffenc"
2977 xmv_demuxer_select="riffdec"
2978 xwma_demuxer_select="riffdec"
2979
2980 # indevs / outdevs
2981 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2982 alsa_outdev_deps="alsa_asoundlib_h"
2983 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2984 avfoundation_indev_select="avfoundation"
2985 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2986 caca_outdev_deps="libcaca"
2987 decklink_indev_deps="decklink pthreads"
2988 decklink_indev_extralibs="-lstdc++"
2989 decklink_outdev_deps="decklink pthreads"
2990 decklink_outdev_extralibs="-lstdc++"
2991 dshow_indev_deps="IBaseFilter"
2992 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2993 dv1394_indev_deps="dv1394"
2994 dv1394_indev_select="dv_demuxer"
2995 fbdev_indev_deps="linux_fb_h"
2996 fbdev_outdev_deps="linux_fb_h"
2997 gdigrab_indev_deps="CreateDIBSection"
2998 gdigrab_indev_extralibs="-lgdi32"
2999 gdigrab_indev_select="bmp_decoder"
3000 iec61883_indev_deps="libiec61883"
3001 jack_indev_deps="jack_jack_h"
3002 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3003 lavfi_indev_deps="avfilter"
3004 libcdio_indev_deps="libcdio"
3005 libdc1394_indev_deps="libdc1394"
3006 libv4l2_indev_deps="libv4l2"
3007 openal_indev_deps="openal"
3008 opengl_outdev_deps="opengl"
3009 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3010 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3011 pulse_indev_deps="libpulse"
3012 pulse_outdev_deps="libpulse"
3013 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3014 qtkit_indev_select="qtkit"
3015 sdl2_outdev_deps="sdl2"
3016 sndio_indev_deps="sndio_h"
3017 sndio_outdev_deps="sndio_h"
3018 v4l_indev_deps="linux_videodev_h"
3019 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3020 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3021 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3022 vfwcap_indev_extralibs="-lavicap32"
3023 xcbgrab_indev_deps="libxcb"
3024 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3025 xv_outdev_extralibs="-lXv -lX11 -lXext"
3026
3027 # protocols
3028 async_protocol_deps="threads"
3029 bluray_protocol_deps="libbluray"
3030 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3031 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3032 ffrtmpcrypt_protocol_select="tcp_protocol"
3033 ffrtmphttp_protocol_deps="!librtmp_protocol"
3034 ffrtmphttp_protocol_select="http_protocol"
3035 ftp_protocol_select="tcp_protocol"
3036 gopher_protocol_select="network"
3037 http_protocol_select="tcp_protocol"
3038 httpproxy_protocol_select="tcp_protocol"
3039 https_protocol_select="tls_protocol"
3040 icecast_protocol_select="http_protocol"
3041 librtmp_protocol_deps="librtmp"
3042 librtmpe_protocol_deps="librtmp"
3043 librtmps_protocol_deps="librtmp"
3044 librtmpt_protocol_deps="librtmp"
3045 librtmpte_protocol_deps="librtmp"
3046 libsmbclient_protocol_deps="libsmbclient gplv3"
3047 libssh_protocol_deps="libssh"
3048 mmsh_protocol_select="http_protocol"
3049 mmst_protocol_select="network"
3050 rtmp_protocol_deps="!librtmp_protocol"
3051 rtmp_protocol_select="tcp_protocol"
3052 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3053 rtmps_protocol_deps="!librtmp_protocol"
3054 rtmps_protocol_select="tls_protocol"
3055 rtmpt_protocol_select="ffrtmphttp_protocol"
3056 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3057 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3058 rtp_protocol_select="udp_protocol"
3059 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3060 sctp_protocol_select="network"
3061 srtp_protocol_select="rtp_protocol srtp"
3062 tcp_protocol_select="network"
3063 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3064 tls_gnutls_protocol_select="tcp_protocol"
3065 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3066 tls_openssl_protocol_select="tcp_protocol"
3067 tls_schannel_protocol_deps="schannel"
3068 tls_schannel_protocol_select="tcp_protocol"
3069 tls_securetransport_protocol_deps="securetransport"
3070 tls_securetransport_protocol_select="tcp_protocol"
3071 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3072 udp_protocol_select="network"
3073 udplite_protocol_select="network"
3074 unix_protocol_deps="sys_un_h"
3075 unix_protocol_select="network"
3076
3077 # filters
3078 afftfilt_filter_deps="avcodec"
3079 afftfilt_filter_select="fft"
3080 amovie_filter_deps="avcodec avformat"
3081 aresample_filter_deps="swresample"
3082 ass_filter_deps="libass"
3083 atempo_filter_deps="avcodec"
3084 atempo_filter_select="rdft"
3085 azmq_filter_deps="libzmq"
3086 blackframe_filter_deps="gpl"
3087 boxblur_filter_deps="gpl"
3088 bs2b_filter_deps="libbs2b"
3089 colormatrix_filter_deps="gpl"
3090 cover_rect_filter_deps="avcodec avformat gpl"
3091 cropdetect_filter_deps="gpl"
3092 deinterlace_qsv_filter_deps="libmfx"
3093 deinterlace_vaapi_filter_deps="vaapi"
3094 delogo_filter_deps="gpl"
3095 deshake_filter_select="pixelutils"
3096 drawtext_filter_deps="libfreetype"
3097 eq_filter_deps="gpl"
3098 fftfilt_filter_deps="avcodec"
3099 fftfilt_filter_select="rdft"
3100 find_rect_filter_deps="avcodec avformat gpl"
3101 firequalizer_filter_deps="avcodec"
3102 firequalizer_filter_select="rdft"
3103 flite_filter_deps="libflite"
3104 framerate_filter_select="pixelutils"
3105 frei0r_filter_deps="frei0r dlopen"
3106 frei0r_src_filter_deps="frei0r dlopen"
3107 fspp_filter_deps="gpl"
3108 geq_filter_deps="gpl"
3109 histeq_filter_deps="gpl"
3110 hqdn3d_filter_deps="gpl"
3111 interlace_filter_deps="gpl"
3112 kerndeint_filter_deps="gpl"
3113 ladspa_filter_deps="ladspa dlopen"
3114 mcdeint_filter_deps="avcodec gpl"
3115 movie_filter_deps="avcodec avformat"
3116 mpdecimate_filter_deps="gpl"
3117 mpdecimate_filter_select="pixelutils"
3118 mptestsrc_filter_deps="gpl"
3119 negate_filter_deps="lut_filter"
3120 nnedi_filter_deps="gpl"
3121 ocr_filter_deps="libtesseract"
3122 ocv_filter_deps="libopencv"
3123 owdenoise_filter_deps="gpl"
3124 pan_filter_deps="swresample"
3125 perspective_filter_deps="gpl"
3126 phase_filter_deps="gpl"
3127 pp7_filter_deps="gpl"
3128 pp_filter_deps="gpl postproc"
3129 pullup_filter_deps="gpl"
3130 removelogo_filter_deps="avcodec avformat swscale"
3131 repeatfields_filter_deps="gpl"
3132 resample_filter_deps="avresample"
3133 rubberband_filter_deps="librubberband"
3134 sab_filter_deps="gpl swscale"
3135 scale2ref_filter_deps="swscale"
3136 scale_filter_deps="swscale"
3137 scale_qsv_filter_deps="libmfx"
3138 select_filter_select="pixelutils"
3139 showcqt_filter_deps="avcodec avformat swscale"
3140 showcqt_filter_select="fft"
3141 showfreqs_filter_deps="avcodec"
3142 showfreqs_filter_select="fft"
3143 showspectrum_filter_deps="avcodec"
3144 showspectrum_filter_select="fft"
3145 showspectrumpic_filter_deps="avcodec"
3146 showspectrumpic_filter_select="fft"
3147 signature_filter_deps="gpl avcodec avformat"
3148 smartblur_filter_deps="gpl swscale"
3149 sofalizer_filter_deps="netcdf avcodec"
3150 sofalizer_filter_select="fft"
3151 spectrumsynth_filter_deps="avcodec"
3152 spectrumsynth_filter_select="fft"
3153 spp_filter_deps="gpl avcodec"
3154 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3155 stereo3d_filter_deps="gpl"
3156 subtitles_filter_deps="avformat avcodec libass"
3157 super2xsai_filter_deps="gpl"
3158 pixfmts_super2xsai_test_deps="super2xsai_filter"
3159 tinterlace_filter_deps="gpl"
3160 tinterlace_merge_test_deps="tinterlace_filter"
3161 tinterlace_pad_test_deps="tinterlace_filter"
3162 uspp_filter_deps="gpl avcodec"
3163 vaguedenoiser_filter_deps="gpl"
3164 vidstabdetect_filter_deps="libvidstab"
3165 vidstabtransform_filter_deps="libvidstab"
3166 zmq_filter_deps="libzmq"
3167 zoompan_filter_deps="swscale"
3168 zscale_filter_deps="libzimg"
3169 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3170
3171 # examples
3172 avio_dir_cmd_deps="avformat avutil"
3173 avio_reading_deps="avformat avcodec avutil"
3174 decode_audio_example_deps="avcodec avutil"
3175 decode_video_example_deps="avcodec avutil"
3176 demuxing_decoding_example_deps="avcodec avformat avutil"
3177 encode_audio_example_deps="avcodec avutil"
3178 encode_video_example_deps="avcodec avutil"
3179 extract_mvs_example_deps="avcodec avformat avutil"
3180 filter_audio_example_deps="avfilter avutil"
3181 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3182 filtering_video_example_deps="avfilter avcodec avformat avutil"
3183 http_multiclient_example_deps="avformat avutil fork"
3184 metadata_example_deps="avformat avutil"
3185 muxing_example_deps="avcodec avformat avutil swscale"
3186 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3187 remuxing_example_deps="avcodec avformat avutil"
3188 resampling_audio_example_deps="avutil swresample"
3189 scaling_video_example_deps="avutil swscale"
3190 transcode_aac_example_deps="avcodec avformat swresample"
3191 transcoding_example_deps="avfilter avcodec avformat avutil"
3192
3193 # libraries, in linking order
3194 avcodec_deps="avutil"
3195 avdevice_deps="avformat avcodec avutil"
3196 avfilter_deps="avutil"
3197 avformat_deps="avcodec avutil"
3198 avresample_deps="avutil"
3199 postproc_deps="avutil gpl"
3200 swresample_deps="avutil"
3201 swscale_deps="avutil"
3202
3203 # programs
3204 ffmpeg_deps="avcodec avfilter avformat swresample"
3205 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3206                null_filter
3207                trim_filter"
3208 ffplay_deps="avcodec avformat swscale swresample sdl2"
3209 ffplay_libs='$sdl2_libs'
3210 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3211 ffprobe_deps="avcodec avformat"
3212 ffserver_deps="avformat fork sarestart"
3213 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3214
3215 # documentation
3216 podpages_deps="perl"
3217 manpages_deps="perl pod2man"
3218 htmlpages_deps="perl"
3219 htmlpages_deps_any="makeinfo_html texi2html"
3220 txtpages_deps="perl makeinfo"
3221 doc_deps_any="manpages htmlpages podpages txtpages"
3222
3223 # default parameters
3224
3225 logfile="config.log"
3226
3227 # installation paths
3228 prefix_default="/usr/local"
3229 bindir_default='${prefix}/bin'
3230 datadir_default='${prefix}/share/ffmpeg'
3231 docdir_default='${prefix}/share/doc/ffmpeg'
3232 incdir_default='${prefix}/include'
3233 libdir_default='${prefix}/lib'
3234 mandir_default='${prefix}/share/man'
3235
3236 # toolchain
3237 ar_default="ar"
3238 cc_default="gcc"
3239 cxx_default="g++"
3240 host_cc_default="gcc"
3241 cp_f="cp -f"
3242 doxygen_default="doxygen"
3243 install="install"
3244 ln_s_default="ln -s -f"
3245 nm_default="nm -g"
3246 objformat="elf"
3247 pkg_config_default=pkg-config
3248 ranlib_default="ranlib"
3249 strip_default="strip"
3250 version_script='--version-script'
3251 yasmexe_default="yasm"
3252 windres_default="windres"
3253
3254 # OS
3255 target_os_default=$(tolower $(uname -s))
3256 host_os=$target_os_default
3257
3258 # machine
3259 if test "$target_os_default" = aix; then
3260     arch_default=$(uname -p)
3261     strip_default="strip -X32_64"
3262 else
3263     arch_default=$(uname -m)
3264 fi
3265 cpu="generic"
3266 intrinsics="none"
3267
3268 # configurable options
3269 enable $PROGRAM_LIST
3270 enable $DOCUMENT_LIST
3271 enable $EXAMPLE_LIST
3272 enable $(filter_out avresample $LIBRARY_LIST)
3273 enable stripping
3274
3275 enable asm
3276 enable debug
3277 enable doc
3278 enable faan faandct faanidct
3279 enable optimizations
3280 enable runtime_cpudetect
3281 enable safe_bitstream_reader
3282 enable static
3283 enable swscale_alpha
3284 enable valgrind_backtrace
3285
3286 sws_max_filter_size_default=256
3287 set_default sws_max_filter_size
3288
3289 # build settings
3290 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3291 LIBPREF="lib"
3292 LIBSUF=".a"
3293 FULLNAME='$(NAME)$(BUILDSUF)'
3294 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3295 SLIBPREF="lib"
3296 SLIBSUF=".so"
3297 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3298 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3299 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3300 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3301 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3302 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3303 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3304
3305 asflags_filter=echo
3306 cflags_filter=echo
3307 ldflags_filter=echo
3308
3309 AS_C='-c'
3310 AS_O='-o $@'
3311 CC_C='-c'
3312 CC_E='-E -o $@'
3313 CC_O='-o $@'
3314 CXX_C='-c'
3315 CXX_O='-o $@'
3316 OBJCC_C='-c'
3317 OBJCC_E='-E -o $@'
3318 OBJCC_O='-o $@'
3319 LD_O='-o $@'
3320 LD_LIB='-l%'
3321 LD_PATH='-L'
3322 HOSTCC_C='-c'
3323 HOSTCC_E='-E -o $@'
3324 HOSTCC_O='-o $@'
3325 HOSTLD_O='-o $@'
3326
3327 host_libs='-lm'
3328 host_cflags_filter=echo
3329 host_ldflags_filter=echo
3330
3331 target_path='$(CURDIR)'
3332
3333 # since the object filename is not given with the -MM flag, the compiler
3334 # is only able to print the basename, and we must add the path ourselves
3335 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3336 DEPFLAGS='-MM'
3337
3338 # find source path
3339 if test -f configure; then
3340     source_path=.
3341 else
3342     source_path=$(cd $(dirname "$0"); pwd)
3343     case "$source_path" in
3344         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3345     esac
3346     test -e "$source_path/config.h" &&
3347         die "Out of tree builds are impossible with config.h in source dir."
3348 fi
3349
3350 for v in "$@"; do
3351     r=${v#*=}
3352     l=${v%"$r"}
3353     r=$(sh_quote "$r")
3354     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3355 done
3356
3357 find_things(){
3358     thing=$1
3359     pattern=$2
3360     file=$source_path/$3
3361     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3362 }
3363
3364 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3365 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3366 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3367 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3368 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3369 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3370 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3371 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3372 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3373
3374 find_things_extern(){
3375     thing=$1
3376     pattern=$2
3377     file=$source_path/$3
3378     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3379 }
3380
3381 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3382 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3383
3384 ALL_COMPONENTS="
3385     $BSF_LIST
3386     $DECODER_LIST
3387     $DEMUXER_LIST
3388     $ENCODER_LIST
3389     $FILTER_LIST
3390     $HWACCEL_LIST
3391     $INDEV_LIST
3392     $MUXER_LIST
3393     $OUTDEV_LIST
3394     $PARSER_LIST
3395     $PROTOCOL_LIST
3396 "
3397
3398 for n in $COMPONENT_LIST; do
3399     v=$(toupper ${n%s})_LIST
3400     eval enable \$$v
3401     eval ${n}_if_any="\$$v"
3402 done
3403
3404 enable $ARCH_EXT_LIST
3405
3406 die_unknown(){
3407     echo "Unknown option \"$1\"."
3408     echo "See $0 --help for available options."
3409     exit 1
3410 }
3411
3412 print_in_columns() {
3413     cols=$(expr $ncols / 24)
3414     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3415 }
3416
3417 show_list() {
3418     suffix=_$1
3419     shift
3420     echo $* | sed s/$suffix//g | print_in_columns
3421     exit 0
3422 }
3423
3424 rand_list(){
3425     IFS=', '
3426     set -- $*
3427     unset IFS
3428     for thing; do
3429         comp=${thing%:*}
3430         prob=${thing#$comp}
3431         prob=${prob#:}
3432         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3433         echo "prob ${prob:-0.5}"
3434         printf '%s\n' $comp
3435     done
3436 }
3437
3438 do_random(){
3439     action=$1
3440     shift
3441     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3442     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3443 }
3444
3445 for opt do
3446     optval="${opt#*=}"
3447     case "$opt" in
3448         --extra-ldflags=*)
3449             add_ldflags $optval
3450         ;;
3451         --extra-ldexeflags=*)
3452             add_ldexeflags $optval
3453         ;;
3454         --extra-ldlibflags=*)
3455             add_ldlibflags $optval
3456         ;;
3457         --extra-libs=*)
3458             add_extralibs $optval
3459         ;;
3460         --disable-devices)
3461             disable $INDEV_LIST $OUTDEV_LIST
3462         ;;
3463         --enable-debug=*)
3464             debuglevel="$optval"
3465         ;;
3466         --disable-programs)
3467             disable $PROGRAM_LIST
3468         ;;
3469         --disable-everything)
3470             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3471         ;;
3472         --disable-all)
3473             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3474             disable $LIBRARY_LIST $PROGRAM_LIST doc
3475             enable avutil
3476         ;;
3477         --enable-random|--disable-random)
3478             action=${opt%%-random}
3479             do_random ${action#--} $COMPONENT_LIST
3480         ;;
3481         --enable-random=*|--disable-random=*)
3482             action=${opt%%-random=*}
3483             do_random ${action#--} $optval
3484         ;;
3485         --enable-*=*|--disable-*=*)
3486             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3487             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3488             eval list=\$$(toupper $thing)_LIST
3489             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3490             list=$(filter "$name" $list)
3491             [ "$list" = "" ] && warn "Option $opt did not match anything"
3492             $action $list
3493         ;;
3494         --enable-?*|--disable-?*)
3495             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3496             if is_in $option $COMPONENT_LIST; then
3497                 test $action = disable && action=unset
3498                 eval $action \$$(toupper ${option%s})_LIST
3499             elif is_in $option $CMDLINE_SELECT; then
3500                 $action $option
3501             else
3502                 die_unknown $opt
3503             fi
3504         ;;
3505         --list-*)
3506             NAME="${opt#--list-}"
3507             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3508             NAME=${NAME%s}
3509             eval show_list $NAME \$$(toupper $NAME)_LIST
3510         ;;
3511         --help|-h) show_help
3512         ;;
3513         --quiet|-q) quiet=yes
3514         ;;
3515         --fatal-warnings) enable fatal_warnings
3516         ;;
3517         *)
3518             optname="${opt%%=*}"
3519             optname="${optname#--}"
3520             optname=$(echo "$optname" | sed 's/-/_/g')
3521             if is_in $optname $CMDLINE_SET; then
3522                 eval $optname='$optval'
3523             elif is_in $optname $CMDLINE_APPEND; then
3524                 append $optname "$optval"
3525             else
3526                 die_unknown $opt
3527             fi
3528         ;;
3529     esac
3530 done
3531
3532 for e in $env; do
3533     eval "export $e"
3534 done
3535
3536 # Mark specifically enabled, but normally autodetected libraries as requested.
3537 for lib in $AUTODETECT_LIBS; do
3538     enabled $lib && request $lib
3539 done
3540
3541 # Enable platform codecs by default.
3542 enable_weak audiotoolbox
3543
3544 # Enable hwaccels by default.
3545 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3546 enable_weak xlib
3547
3548 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3549
3550 disabled logging && logfile=/dev/null
3551
3552 die_license_disabled() {
3553     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3554 }
3555
3556 die_license_disabled_gpl() {
3557     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3558 }
3559
3560 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3561 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3562
3563 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3564 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3565
3566 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3567
3568 # Disable all the library-specific components if the library itself
3569 # is disabled, see AVCODEC_LIST and following _LIST variables.
3570
3571 disable_components(){
3572     disabled ${1} && disable $(
3573         eval components="\$$(toupper ${1})_COMPONENTS"
3574         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3575     )
3576 }
3577
3578 map 'disable_components $v' $LIBRARY_LIST
3579
3580 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3581 set >> $logfile
3582
3583 test -n "$valgrind" && toolchain="valgrind-memcheck"
3584
3585 case "$toolchain" in
3586     *-asan)
3587         cc_default="${toolchain%-asan}"
3588         add_cflags  -fsanitize=address
3589         add_ldflags -fsanitize=address
3590     ;;
3591     *-msan)
3592         cc_default="${toolchain%-msan}"
3593         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3594         add_ldflags -fsanitize=memory
3595     ;;
3596     *-tsan)
3597         cc_default="${toolchain%-tsan}"
3598         add_cflags  -fsanitize=thread -fPIE
3599         add_ldflags -fsanitize=thread -pie
3600         case "$toolchain" in
3601             gcc-tsan)
3602                 add_cflags  -fPIC
3603                 add_ldflags -fPIC
3604                 ;;
3605         esac
3606     ;;
3607     *-usan)
3608         cc_default="${toolchain%-usan}"
3609         add_cflags  -fsanitize=undefined
3610         add_ldflags -fsanitize=undefined
3611     ;;
3612     valgrind-*)
3613         target_exec_default="valgrind"
3614         case "$toolchain" in
3615             valgrind-massif)
3616                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3617                 ;;
3618             valgrind-memcheck)
3619                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3620                 ;;
3621         esac
3622     ;;
3623     msvc)
3624         # Check whether the current MSVC version needs the C99 converter.
3625         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3626         # support enough of C99 to build ffmpeg. Default to the new
3627         # behaviour if the regexp was unable to match anything, since this
3628         # successfully parses the version number of existing supported
3629         # versions that require the converter (MSVC 2010 and 2012).
3630         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3631         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3632             cc_default="cl"
3633         else
3634             cc_default="c99wrap cl"
3635         fi
3636         ld_default="$source_path/compat/windows/mslink"
3637         nm_default="dumpbin -symbols"
3638         ar_default="lib"
3639         case "$arch" in
3640         arm*)
3641             as_default="armasm"
3642             ;;
3643         esac
3644         target_os_default="win32"
3645         # Use a relative path for TMPDIR. This makes sure all the
3646         # ffconf temp files are written with a relative path, avoiding
3647         # issues with msys/win32 path conversion for MSVC parameters
3648         # such as -Fo<file> or -out:<file>.
3649         TMPDIR=.
3650     ;;
3651     icl)
3652         cc_default="icl"
3653         ld_default="xilink"
3654         nm_default="dumpbin -symbols"
3655         ar_default="xilib"
3656         target_os_default="win32"
3657         TMPDIR=.
3658     ;;
3659     gcov)
3660         add_cflags  -fprofile-arcs -ftest-coverage
3661         add_ldflags -fprofile-arcs -ftest-coverage
3662     ;;
3663     llvm-cov)
3664         add_cflags -fprofile-arcs -ftest-coverage
3665         add_ldflags --coverage
3666     ;;
3667     hardened)
3668         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3669         add_cflags   -fno-strict-overflow -fstack-protector-all
3670         add_ldflags  -Wl,-z,relro -Wl,-z,now
3671         add_cflags   -fPIE
3672         add_ldexeflags -fPIE -pie
3673     ;;
3674     ?*)
3675         die "Unknown toolchain $toolchain"
3676     ;;
3677 esac
3678
3679 test -n "$cross_prefix" && enable cross_compile
3680
3681 if enabled cross_compile; then
3682     test -n "$arch" && test -n "$target_os" ||
3683         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3684 fi
3685
3686 ar_default="${cross_prefix}${ar_default}"
3687 cc_default="${cross_prefix}${cc_default}"
3688 cxx_default="${cross_prefix}${cxx_default}"
3689 nm_default="${cross_prefix}${nm_default}"
3690 pkg_config_default="${cross_prefix}${pkg_config_default}"
3691 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3692     ranlib_default="${cross_prefix}${ranlib_default} -D"
3693 else
3694     ranlib_default="${cross_prefix}${ranlib_default}"
3695 fi
3696 strip_default="${cross_prefix}${strip_default}"
3697 windres_default="${cross_prefix}${windres_default}"
3698
3699 sysinclude_default="${sysroot}/usr/include"
3700
3701 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3702     target_exec target_os yasmexe
3703 enabled cross_compile || host_cc_default=$cc
3704 set_default host_cc
3705
3706 pkg_config_fail_message=""
3707 if ! $pkg_config --version >/dev/null 2>&1; then
3708     warn "$pkg_config not found, library detection may fail."
3709     pkg_config=false
3710 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3711     pkg_config_fail_message="
3712 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3713 fi
3714
3715 if test $doxygen != $doxygen_default && \
3716   ! $doxygen --version >/dev/null 2>&1; then
3717     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3718 fi
3719
3720 exesuf() {
3721     case $1 in
3722         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3723     esac
3724 }
3725
3726 EXESUF=$(exesuf $target_os)
3727 HOSTEXESUF=$(exesuf $host_os)
3728
3729 # set temporary file name
3730 : ${TMPDIR:=$TEMPDIR}
3731 : ${TMPDIR:=$TMP}
3732 : ${TMPDIR:=/tmp}
3733
3734 if [ -n "$tempprefix" ] ; then
3735     mktemp(){
3736         echo $tempprefix.${HOSTNAME}.${UID}
3737     }
3738 elif ! check_cmd mktemp -u XXXXXX; then
3739     # simple replacement for missing mktemp
3740     # NOT SAFE FOR GENERAL USE
3741     mktemp(){
3742         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3743     }
3744 fi
3745
3746 tmpfile(){
3747     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3748         (set -C; exec > $tmp) 2>/dev/null ||
3749         die "Unable to create temporary file in $TMPDIR."
3750     append TMPFILES $tmp
3751     eval $1=$tmp
3752 }
3753
3754 trap 'rm -f -- $TMPFILES' EXIT
3755
3756 tmpfile TMPASM .asm
3757 tmpfile TMPC   .c
3758 tmpfile TMPCPP .cpp
3759 tmpfile TMPE   $EXESUF
3760 tmpfile TMPH   .h
3761 tmpfile TMPM   .m
3762 tmpfile TMPO   .o
3763 tmpfile TMPS   .S
3764 tmpfile TMPSH  .sh
3765 tmpfile TMPV   .ver
3766
3767 unset -f mktemp
3768
3769 chmod +x $TMPE
3770
3771 # make sure we can execute files in $TMPDIR
3772 cat > $TMPSH 2>> $logfile <<EOF
3773 #! /bin/sh
3774 EOF
3775 chmod +x $TMPSH >> $logfile 2>&1
3776 if ! $TMPSH >> $logfile 2>&1; then
3777     cat <<EOF
3778 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3779 variable to another directory and make sure that it is not mounted noexec.
3780 EOF
3781     die "Sanity test failed."
3782 fi
3783
3784 armasm_flags(){
3785     for flag; do
3786         case $flag in
3787             # Filter out MSVC cl.exe options from cflags that shouldn't
3788             # be passed to gas-preprocessor
3789             -M[TD]*)                                            ;;
3790             *)                  echo $flag                      ;;
3791         esac
3792    done
3793 }
3794
3795 ccc_flags(){
3796     for flag; do
3797         case $flag in
3798             -std=c99)           echo -c99                       ;;
3799             -mcpu=*)            echo -arch ${flag#*=}           ;;
3800             -mieee)             echo -ieee                      ;;
3801             -O*|-fast)          echo $flag                      ;;
3802             -fno-math-errno)    echo -assume nomath_errno       ;;
3803             -g)                 echo -g3                        ;;
3804             -Wall)              echo -msg_enable level2         ;;
3805             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3806             -Wl,*)              echo $flag                      ;;
3807             -f*|-W*)                                            ;;
3808             *)                  echo $flag                      ;;
3809         esac
3810    done
3811 }
3812
3813 cparser_flags(){
3814     for flag; do
3815         case $flag in
3816             -Wno-switch)             echo -Wno-switch-enum ;;
3817             -Wno-format-zero-length) ;;
3818             -Wdisabled-optimization) ;;
3819             -Wno-pointer-sign)       echo -Wno-other ;;
3820             *)                       echo $flag ;;
3821         esac
3822     done
3823 }
3824
3825 msvc_common_flags(){
3826     for flag; do
3827         case $flag in
3828             # In addition to specifying certain flags under the compiler
3829             # specific filters, they must be specified here as well or else the
3830             # generic catch all at the bottom will print the original flag.
3831             -Wall)                ;;
3832             -std=c99)             ;;
3833             # Common flags
3834             -fomit-frame-pointer) ;;
3835             -g)                   echo -Z7 ;;
3836             -fno-math-errno)      ;;
3837             -fno-common)          ;;
3838             -fno-signed-zeros)    ;;
3839             -fPIC)                ;;
3840             -mthumb)              ;;
3841             -march=*)             ;;
3842             -lz)                  echo zlib.lib ;;
3843             -lavicap32)           echo vfw32.lib user32.lib ;;
3844             -lx264)               echo libx264.lib ;;
3845             -l*)                  echo ${flag#-l}.lib ;;
3846             -LARGEADDRESSAWARE)   echo $flag ;;
3847             -L*)                  echo -libpath:${flag#-L} ;;
3848             *)                    echo $flag ;;
3849         esac
3850     done
3851 }
3852
3853 msvc_flags(){
3854     msvc_common_flags "$@"
3855     for flag; do
3856         case $flag in
3857             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3858                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3859                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3860                                        -wd4307 \
3861                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3862         esac
3863     done
3864 }
3865
3866 icl_flags(){
3867     msvc_common_flags "$@"
3868     for flag; do
3869         case $flag in
3870             # Despite what Intel's documentation says -Wall, which is supported
3871             # on Windows, does enable remarks so disable them here.
3872             -Wall)                echo $flag -Qdiag-disable:remark ;;
3873             -std=c99)             echo -Qstd=c99 ;;
3874             -flto)                echo -ipo ;;
3875         esac
3876     done
3877 }
3878
3879 icc_flags(){
3880     for flag; do
3881         case $flag in
3882             -flto)                echo -ipo ;;
3883             *)                    echo $flag ;;
3884         esac
3885     done
3886 }
3887
3888 pgi_flags(){
3889     for flag; do
3890         case $flag in
3891             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3892             -fomit-frame-pointer) echo -Mnoframe ;;
3893             -g)                   echo -gopt ;;
3894             *)                    echo $flag ;;
3895         esac
3896     done
3897 }
3898
3899 suncc_flags(){
3900     for flag; do
3901         case $flag in
3902             -march=*|-mcpu=*)
3903                 case "${flag#*=}" in
3904                     native)                   echo -xtarget=native       ;;
3905                     v9|niagara)               echo -xarch=sparc          ;;
3906                     ultrasparc)               echo -xarch=sparcvis       ;;
3907                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3908                     i586|pentium)             echo -xchip=pentium        ;;
3909                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3910                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3911                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3912                     pentium4*)          echo -xtarget=pentium4           ;;
3913                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3914                     *-sse3)             echo -xarch=sse3                 ;;
3915                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3916                     bonnell)                   echo -xarch=ssse3         ;;
3917                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3918                     westmere)                  echo -xtarget=westmere    ;;
3919                     silvermont)                echo -xarch=sse4_2        ;;
3920                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3921                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3922                                                echo -xarch=avx           ;;
3923                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3924                     btver1)                    echo -xarch=amdsse4a      ;;
3925                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3926                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3927                     k8|opteron|athlon64|athlon-fx)
3928                                                echo -xarch=sse2a         ;;
3929                     athlon*)                   echo -xarch=pentium_proa  ;;
3930                 esac
3931                 ;;
3932             -std=c99)             echo -xc99              ;;
3933             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3934             -fPIC)                echo -KPIC -xcode=pic32 ;;
3935             -W*,*)                echo $flag              ;;
3936             -f*-*|-W*|-mimpure-text)                      ;;
3937             -shared)              echo -G                 ;;
3938             *)                    echo $flag              ;;
3939         esac
3940     done
3941 }
3942
3943 tms470_flags(){
3944     for flag; do
3945         case $flag in
3946             -march=*|-mcpu=*)
3947                 case "${flag#*=}" in
3948                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3949                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3950                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3951                     armv6*|arm11*)          echo -mv=6   ;;
3952                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3953                                             echo -mv=5e  ;;
3954                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3955                 esac
3956                 ;;
3957             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3958             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3959             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3960             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3961             -msoft-float)   echo --float_support=vfplib       ;;
3962             -O[0-3]|-mf=*)  echo $flag                        ;;
3963             -g)             echo -g -mn                       ;;
3964             -pds=*)         echo $flag                        ;;
3965             -D*|-I*)        echo $flag                        ;;
3966             --gcc|--abi=*)  echo $flag                        ;;
3967             -me)            echo $flag                        ;;
3968         esac
3969     done
3970 }
3971
3972 probe_cc(){
3973     pfx=$1
3974     _cc=$2
3975     first=$3
3976
3977     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3978     unset _ld_o _ldflags _ld_lib _ld_path
3979     unset _depflags _DEPCMD _DEPFLAGS
3980     _flags_filter=echo
3981
3982     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3983         true # no-op to avoid reading stdin in following checks
3984     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3985         _type=llvm_gcc
3986         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3987         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3988         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3989         _cflags_speed='-O3'
3990         _cflags_size='-Os'
3991     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3992         _type=gcc
3993         gcc_version=$($_cc --version | head -n1)
3994         gcc_basever=$($_cc -dumpversion)
3995         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3996         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3997         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3998         case $gcc_basever in
3999             2) ;;
4000             2.*) ;;
4001             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4002         esac
4003         if [ "$first" = true ]; then
4004             case $gcc_basever in
4005                 4.2*)
4006                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4007             esac
4008         fi
4009         _cflags_speed='-O3'
4010         _cflags_size='-Os'
4011     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4012         _type=icc
4013         _ident=$($_cc --version | head -n1)
4014         _depflags='-MMD'
4015         _cflags_speed='-O3'
4016         _cflags_size='-Os'
4017         _cflags_noopt='-O1'
4018         _flags_filter=icc_flags
4019     elif $_cc -v 2>&1 | grep -q xlc; then
4020         _type=xlc
4021         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4022         _cflags_speed='-O5'
4023         _cflags_size='-O5 -qcompact'
4024     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4025         _type=ccc
4026         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4027         _DEPFLAGS='-M'
4028         _cflags_speed='-fast'
4029         _cflags_size='-O1'
4030         _flags_filter=ccc_flags
4031     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4032         test -d "$sysroot" || die "No valid sysroot specified."
4033         _type=armcc
4034         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4035         armcc_conf="$PWD/armcc.conf"
4036         $_cc --arm_linux_configure                 \
4037              --arm_linux_config_file="$armcc_conf" \
4038              --configure_sysroot="$sysroot"        \
4039              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4040              die "Error creating armcc configuration file."
4041         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4042         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4043         as_default="${cross_prefix}gcc"
4044         _depflags='-MMD'
4045         _cflags_speed='-O3'
4046         _cflags_size='-Os'
4047     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4048         _type=tms470
4049         _ident=$($_cc -version | head -n1 | tr -s ' ')
4050         _flags='--gcc --abi=eabi -me'
4051         _cc_e='-ppl -fe=$@'
4052         _cc_o='-fe=$@'
4053         _depflags='-ppa -ppd=$(@:.o=.d)'
4054         _cflags_speed='-O3 -mf=5'
4055         _cflags_size='-O3 -mf=2'
4056         _flags_filter=tms470_flags
4057     elif $_cc -v 2>&1 | grep -q clang; then
4058         _type=clang
4059         _ident=$($_cc --version 2>/dev/null | head -n1)
4060         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4061         _cflags_speed='-O3'
4062         _cflags_size='-Oz'
4063     elif $_cc -V 2>&1 | grep -q Sun; then
4064         _type=suncc
4065         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4066         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4067         _DEPFLAGS='-xM1 -xc99'
4068         _ldflags='-std=c99'
4069         _cflags_speed='-O5'
4070         _cflags_size='-O5 -xspace'
4071         _flags_filter=suncc_flags
4072     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4073         _type=pathscale
4074         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4075         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4076         _cflags_speed='-O2'
4077         _cflags_size='-Os'
4078         _flags_filter='filter_out -Wdisabled-optimization'
4079     elif $_cc -v 2>&1 | grep -q Open64; then
4080         _type=open64
4081         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4082         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4083         _cflags_speed='-O2'
4084         _cflags_size='-Os'
4085         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4086     elif $_cc -V 2>&1 | grep -q Portland; then
4087         _type=pgi
4088         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4089         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4090         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4091         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4092         _cflags_noopt="-O"
4093         _flags_filter=pgi_flags
4094     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4095         _type=armasm
4096         _ident=$($_cc | head -n1)
4097         # 4509: "This form of conditional instruction is deprecated"
4098         _flags="-nologo -ignore 4509"
4099         _flags_filter=armasm_flags
4100     elif $_cc 2>&1 | grep -q Intel; then
4101         _type=icl
4102         _ident=$($_cc 2>&1 | head -n1)
4103         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4104         # Not only is O3 broken on 13.x+ but it is slower on all previous
4105         # versions (tested) as well.
4106         _cflags_speed="-O2"
4107         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4108         if $_cc 2>&1 | grep -q Linker; then
4109             _ld_o='-out:$@'
4110         else
4111             _ld_o='-Fe$@'
4112         fi
4113         _cc_o='-Fo$@'
4114         _cc_e='-P'
4115         _flags_filter=icl_flags
4116         _ld_lib='lib%.a'
4117         _ld_path='-libpath:'
4118         # -Qdiag-error to make icl error when seeing certain unknown arguments
4119         _flags='-nologo -Qdiag-error:4044,10157'
4120         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4121         # with MSVC which enables it by default.
4122         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4123         disable stripping
4124     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4125         # lld can emulate multiple different linkers; in ms link.exe mode,
4126         # the -? parameter gives the help output which contains an identifyable
4127         # string, while it gives an error in other modes.
4128         _type=lld-link
4129         # The link.exe mode doesn't have a switch for getting the version,
4130         # but we can force it back to gnu mode and get the version from there.
4131         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4132         _ld_o='-out:$@'
4133         _flags_filter=msvc_flags
4134         _ld_lib='lib%.a'
4135         _ld_path='-libpath:'
4136     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4137         _type=msvc
4138         _ident=$($_cc 2>&1 | head -n1)
4139         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4140         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4141         _cflags_speed="-O2"
4142         _cflags_size="-O1"
4143         if $_cc -nologo- 2>&1 | grep -q Linker; then
4144             _ld_o='-out:$@'
4145         else
4146             _ld_o='-Fe$@'
4147         fi
4148         _cc_o='-Fo$@'
4149         _cc_e='-P -Fi$@'
4150         _flags_filter=msvc_flags
4151         _ld_lib='lib%.a'
4152         _ld_path='-libpath:'
4153         _flags='-nologo'
4154         disable stripping
4155     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4156         _type=cparser
4157         _ident=$($_cc --version | head -n1)
4158         _depflags='-MMD'
4159         _cflags_speed='-O4'
4160         _cflags_size='-O2'
4161         _flags_filter=cparser_flags
4162     fi
4163
4164     eval ${pfx}_type=\$_type
4165     eval ${pfx}_ident=\$_ident
4166 }
4167
4168 set_ccvars(){
4169     eval ${1}_C=\${_cc_c-\${${1}_C}}
4170     eval ${1}_E=\${_cc_e-\${${1}_E}}
4171     eval ${1}_O=\${_cc_o-\${${1}_O}}
4172
4173     if [ -n "$_depflags" ]; then
4174         eval ${1}_DEPFLAGS=\$_depflags
4175     else
4176         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4177         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4178         eval DEP${1}FLAGS=\$_flags
4179     fi
4180 }
4181
4182 probe_cc cc "$cc" "true"
4183 cflags_filter=$_flags_filter
4184 cflags_speed=$_cflags_speed
4185 cflags_size=$_cflags_size
4186 cflags_noopt=$_cflags_noopt
4187 add_cflags $_flags $_cflags
4188 cc_ldflags=$_ldflags
4189 set_ccvars CC
4190
4191 probe_cc hostcc "$host_cc"
4192 host_cflags_filter=$_flags_filter
4193 add_host_cflags  $_flags $_cflags
4194 set_ccvars HOSTCC
4195
4196 test -n "$cc_type" && enable $cc_type ||
4197     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4198
4199 : ${as_default:=$cc}
4200 : ${objcc_default:=$cc}
4201 : ${dep_cc_default:=$cc}
4202 : ${ld_default:=$cc}
4203 : ${host_ld_default:=$host_cc}
4204 set_default ar as objcc dep_cc ld ln_s host_ld windres
4205
4206 probe_cc as "$as"
4207 asflags_filter=$_flags_filter
4208 add_asflags $_flags $_cflags
4209 set_ccvars AS
4210
4211 probe_cc objcc "$objcc"
4212 objcflags_filter=$_flags_filter
4213 add_objcflags $_flags $_cflags
4214 set_ccvars OBJC
4215
4216 probe_cc ld "$ld"
4217 ldflags_filter=$_flags_filter
4218 add_ldflags $_flags $_ldflags
4219 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4220 LD_O=${_ld_o-$LD_O}
4221 LD_LIB=${_ld_lib-$LD_LIB}
4222 LD_PATH=${_ld_path-$LD_PATH}
4223
4224 probe_cc hostld "$host_ld"
4225 host_ldflags_filter=$_flags_filter
4226 add_host_ldflags $_flags $_ldflags
4227 HOSTLD_O=${_ld_o-$HOSTLD_O}
4228
4229 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4230     probe_cc depcc "$dep_cc"
4231     CCDEP=${_DEPCMD:-$DEPCMD}
4232     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4233     DEPCCFLAGS=$_flags
4234 fi
4235
4236 if $ar 2>&1 | grep -q Microsoft; then
4237     arflags="-nologo"
4238     ar_o='-out:$@'
4239 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4240     arflags="rq"
4241     ar_o='$@'
4242 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4243     arflags='-Xany -r -c'
4244     ar_o='$@'
4245 elif $ar 2>&1 | grep -q "\[D\] "; then
4246     arflags="rcD"
4247     ar_o='$@'
4248 else
4249     arflags="rc"
4250     ar_o='$@'
4251 fi
4252
4253 add_cflags $extra_cflags
4254 add_cxxflags $extra_cxxflags
4255 add_objcflags $extra_objcflags
4256 add_asflags $extra_cflags
4257
4258 if test -n "$sysroot"; then
4259     case "$cc_type" in
4260         gcc|llvm_gcc|clang)
4261             add_cppflags --sysroot="$sysroot"
4262             add_ldflags --sysroot="$sysroot"
4263 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4264             add_cppflags -isysroot "$sysroot"
4265             add_ldflags -isysroot "$sysroot"
4266         ;;
4267         tms470)
4268             add_cppflags -I"$sysinclude"
4269             add_ldflags  --sysroot="$sysroot"
4270         ;;
4271     esac
4272 fi
4273
4274 if test "$cpu" = host; then
4275     enabled cross_compile &&
4276         die "--cpu=host makes no sense when cross-compiling."
4277
4278     case "$cc_type" in
4279         gcc|llvm_gcc)
4280             check_native(){
4281                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4282                 sed -n "/cc1.*$1=/{
4283                             s/.*$1=\\([^ ]*\\).*/\\1/
4284                             p
4285                             q
4286                         }" $TMPE
4287             }
4288             cpu=$(check_native -march || check_native -mcpu)
4289         ;;
4290         clang)
4291             check_native(){
4292                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4293                 sed -n "/cc1.*-target-cpu /{
4294                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4295                             p
4296                             q
4297                         }" $TMPE
4298             }
4299             cpu=$(check_native -march)
4300         ;;
4301     esac
4302
4303     test "${cpu:-host}" = host &&
4304         die "--cpu=host not supported with compiler $cc"
4305 fi
4306
4307 # Deal with common $arch aliases
4308 case "$arch" in
4309     aarch64|arm64)
4310         arch="aarch64"
4311     ;;
4312     arm*|iPad*|iPhone*)
4313         arch="arm"
4314     ;;
4315     mips*|IP*)
4316         case "$arch" in
4317         *el)
4318             add_cppflags -EL
4319             add_ldflags -EL
4320         ;;
4321         *eb)
4322             add_cppflags -EB
4323             add_ldflags -EB
4324         ;;
4325         esac
4326         arch="mips"
4327     ;;
4328     parisc*|hppa*)
4329         arch="parisc"
4330     ;;
4331     "Power Macintosh"|ppc*|powerpc*)
4332         arch="ppc"
4333     ;;
4334     s390|s390x)
4335         arch="s390"
4336     ;;
4337     sh4|sh)
4338         arch="sh4"
4339     ;;
4340     sun4*|sparc*)
4341         arch="sparc"
4342     ;;
4343     tilegx|tile-gx)
4344         arch="tilegx"
4345     ;;
4346     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4347         arch="x86"
4348     ;;
4349 esac
4350
4351 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4352 enable $arch
4353
4354 # Add processor-specific flags
4355 if enabled aarch64; then
4356
4357     case $cpu in
4358         armv*)
4359             cpuflags="-march=$cpu"
4360         ;;
4361         *)
4362             cpuflags="-mcpu=$cpu"
4363         ;;
4364     esac
4365
4366 elif enabled alpha; then
4367
4368     cpuflags="-mcpu=$cpu"
4369
4370 elif enabled arm; then
4371
4372     check_arm_arch() {
4373         check_cpp_condition stddef.h \
4374             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4375             $cpuflags
4376     }
4377
4378     probe_arm_arch() {
4379         if   check_arm_arch 4;        then echo armv4
4380         elif check_arm_arch 4T;       then echo armv4t
4381         elif check_arm_arch 5;        then echo armv5
4382         elif check_arm_arch 5E;       then echo armv5e
4383         elif check_arm_arch 5T;       then echo armv5t
4384         elif check_arm_arch 5TE;      then echo armv5te
4385         elif check_arm_arch 5TEJ;     then echo armv5te
4386         elif check_arm_arch 6;        then echo armv6
4387         elif check_arm_arch 6J;       then echo armv6j
4388         elif check_arm_arch 6K;       then echo armv6k
4389         elif check_arm_arch 6Z;       then echo armv6z
4390         elif check_arm_arch 6ZK;      then echo armv6zk
4391         elif check_arm_arch 6T2;      then echo armv6t2
4392         elif check_arm_arch 7;        then echo armv7
4393         elif check_arm_arch 7A  7_A;  then echo armv7-a
4394         elif check_arm_arch 7S;       then echo armv7-a
4395         elif check_arm_arch 7R  7_R;  then echo armv7-r
4396         elif check_arm_arch 7M  7_M;  then echo armv7-m
4397         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4398         elif check_arm_arch 8A  8_A;  then echo armv8-a
4399         fi
4400     }
4401
4402     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4403
4404     case $cpu in
4405         armv*)
4406             cpuflags="-march=$cpu"
4407             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4408         ;;
4409         *)
4410             cpuflags="-mcpu=$cpu"
4411             case $cpu in
4412                 cortex-a*)                               subarch=armv7a  ;;
4413                 cortex-r*)                               subarch=armv7r  ;;
4414                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4415                 arm11*)                                  subarch=armv6   ;;
4416                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4417                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4418                 *)                             subarch=$(probe_arm_arch) ;;
4419             esac
4420         ;;
4421     esac
4422
4423     case "$subarch" in
4424         armv5t*)    enable fast_clz                ;;
4425         armv[6-8]*)
4426             enable fast_clz
4427             disabled fast_unaligned || enable fast_unaligned
4428             ;;
4429     esac
4430
4431 elif enabled avr32; then
4432
4433     case $cpu in
4434         ap7[02]0[0-2])
4435             subarch="avr32_ap"
4436             cpuflags="-mpart=$cpu"
4437         ;;
4438         ap)
4439             subarch="avr32_ap"
4440             cpuflags="-march=$cpu"
4441         ;;
4442         uc3[ab]*)
4443             subarch="avr32_uc"
4444             cpuflags="-mcpu=$cpu"
4445         ;;
4446         uc)
4447             subarch="avr32_uc"
4448             cpuflags="-march=$cpu"
4449         ;;
4450     esac
4451
4452 elif enabled bfin; then
4453
4454     cpuflags="-mcpu=$cpu"
4455
4456 elif enabled mips; then
4457
4458     cpuflags="-march=$cpu"
4459
4460     if [ "$cpu" != "generic" ]; then
4461         disable mips32r2
4462         disable mips32r5
4463         disable mips64r2
4464         disable mips32r6
4465         disable mips64r6
4466         disable loongson2
4467         disable loongson3
4468
4469         case $cpu in
4470             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4471                 enable mips32r2
4472                 disable msa
4473             ;;
4474             p5600|i6400|p6600)
4475                 disable mipsdsp
4476                 disable mipsdspr2
4477             ;;
4478             loongson*)
4479                 enable loongson2
4480                 enable loongson3
4481                 enable local_aligned_8 local_aligned_16 local_aligned_32
4482                 enable simd_align_16
4483                 enable fast_64bit
4484                 enable fast_clz
4485                 enable fast_cmov
4486                 enable fast_unaligned
4487                 disable aligned_stack
4488                 disable mipsfpu
4489                 disable mipsdsp
4490                 disable mipsdspr2
4491                 case $cpu in
4492                     loongson3*)
4493                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4494                     ;;
4495                     loongson2e)
4496                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4497                     ;;
4498                     loongson2f)
4499                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4500                     ;;
4501                 esac
4502             ;;
4503             *)
4504                 # Unknown CPU. Disable everything.
4505                 warn "unknown CPU. Disabling all MIPS optimizations."
4506                 disable mipsfpu
4507                 disable mipsdsp
4508                 disable mipsdspr2
4509                 disable msa
4510                 disable mmi
4511             ;;
4512         esac
4513
4514         case $cpu in
4515             24kc)
4516                 disable mipsfpu
4517                 disable mipsdsp
4518                 disable mipsdspr2
4519             ;;
4520             24kf*)
4521                 disable mipsdsp
4522                 disable mipsdspr2
4523             ;;
4524             24kec|34kc|1004kc)
4525                 disable mipsfpu
4526                 disable mipsdspr2
4527             ;;
4528             24kef*|34kf*|1004kf*)
4529                 disable mipsdspr2
4530             ;;
4531             74kc)
4532                 disable mipsfpu
4533             ;;
4534             p5600)
4535                 enable mips32r5
4536                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4537             ;;
4538             i6400)
4539                 enable mips64r6
4540                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4541             ;;
4542             p6600)
4543                 enable mips64r6
4544                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4545             ;;
4546         esac
4547     else
4548         # We do not disable anything. Is up to the user to disable the unwanted features.
4549         warn 'generic cpu selected'
4550     fi
4551
4552 elif enabled ppc; then
4553
4554     disable ldbrx
4555
4556     case $(tolower $cpu) in
4557         601|ppc601|powerpc601)
4558             cpuflags="-mcpu=601"
4559             disable altivec
4560         ;;
4561         603*|ppc603*|powerpc603*)
4562             cpuflags="-mcpu=603"
4563             disable altivec
4564         ;;
4565         604*|ppc604*|powerpc604*)
4566             cpuflags="-mcpu=604"
4567             disable altivec
4568         ;;
4569         g3|75*|ppc75*|powerpc75*)
4570             cpuflags="-mcpu=750"
4571             disable altivec
4572         ;;
4573         g4|745*|ppc745*|powerpc745*)
4574             cpuflags="-mcpu=7450"
4575             disable vsx
4576         ;;
4577         74*|ppc74*|powerpc74*)
4578             cpuflags="-mcpu=7400"
4579             disable vsx
4580         ;;
4581         g5|970|ppc970|powerpc970)
4582             cpuflags="-mcpu=970"
4583             disable vsx
4584         ;;
4585         power[3-6]*)
4586             cpuflags="-mcpu=$cpu"
4587             disable vsx
4588         ;;
4589         power[7-8]*)
4590             cpuflags="-mcpu=$cpu"
4591         ;;
4592         cell)
4593             cpuflags="-mcpu=cell"
4594             enable ldbrx
4595             disable vsx
4596         ;;
4597         e500mc)
4598             cpuflags="-mcpu=e500mc"
4599             disable altivec
4600         ;;
4601         e500v2)
4602             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4603             disable altivec
4604             disable dcbzl
4605         ;;
4606         e500)
4607             cpuflags="-mcpu=8540 -mhard-float"
4608             disable altivec
4609             disable dcbzl
4610         ;;
4611     esac
4612
4613 elif enabled sparc; then
4614
4615     case $cpu in
4616         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4617             cpuflags="-mcpu=$cpu"
4618         ;;
4619         ultrasparc*|niagara[234])
4620             cpuflags="-mcpu=$cpu"
4621         ;;
4622     esac
4623
4624 elif enabled x86; then
4625
4626     case $cpu in
4627         i[345]86|pentium)
4628             cpuflags="-march=$cpu"
4629             disable i686
4630             disable mmx
4631         ;;
4632         # targets that do NOT support nopl and conditional mov (cmov)
4633         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4634             cpuflags="-march=$cpu"
4635             disable i686
4636         ;;
4637         # targets that do support nopl and conditional mov (cmov)
4638         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4639         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4640         |amdfam10|barcelona|b[dt]ver*|znver*)
4641             cpuflags="-march=$cpu"
4642             enable i686
4643             enable fast_cmov
4644         ;;
4645         # targets that do support conditional mov but on which it's slow
4646         pentium4|pentium4m|prescott|nocona)
4647             cpuflags="-march=$cpu"
4648             enable i686
4649             disable fast_cmov
4650         ;;
4651     esac
4652
4653 fi
4654
4655 if [ "$cpu" != generic ]; then
4656     add_cflags  $cpuflags
4657     add_asflags $cpuflags
4658     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4659 fi
4660
4661 # compiler sanity check
4662 check_exec <<EOF
4663 int main(void){ return 0; }
4664 EOF
4665 if test "$?" != 0; then
4666     echo "$cc is unable to create an executable file."
4667     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4668         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4669         echo "Only do this if you know what cross compiling means."
4670     fi
4671     die "C compiler test failed."
4672 fi
4673
4674 add_cppflags -D_ISOC99_SOURCE
4675 add_cxxflags -D__STDC_CONSTANT_MACROS
4676 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4677
4678 # some compilers silently accept -std=c11, so we also need to check that the
4679 # version macro is defined properly
4680 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4681     add_cflags -std=c11
4682 else
4683     check_cflags -std=c99
4684 fi
4685
4686 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4687 #include <stdlib.h>
4688 EOF
4689 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4690 #include <stdlib.h>
4691 EOF
4692
4693 add_host_cppflags -D_ISOC99_SOURCE
4694 check_host_cflags -std=c99
4695 check_host_cflags -Wall
4696 check_host_cflags -O3
4697
4698 check_64bit(){
4699     arch32=$1
4700     arch64=$2
4701     expr=$3
4702     check_code cc "" "int test[2*($expr) - 1]" &&
4703         subarch=$arch64 || subarch=$arch32
4704 }
4705
4706 case "$arch" in
4707     aarch64|alpha|ia64)
4708         spic=$shared
4709     ;;
4710     mips)
4711         check_64bit mips mips64 '_MIPS_SIM > 1'
4712         spic=$shared
4713     ;;
4714     parisc)
4715         check_64bit parisc parisc64 'sizeof(void *) > 4'
4716         spic=$shared
4717     ;;
4718     ppc)
4719         check_64bit ppc ppc64 'sizeof(void *) > 4'
4720         spic=$shared
4721     ;;
4722     s390)
4723         check_64bit s390 s390x 'sizeof(void *) > 4'
4724         spic=$shared
4725     ;;
4726     sparc)
4727         check_64bit sparc sparc64 'sizeof(void *) > 4'
4728         spic=$shared
4729     ;;
4730     x86)
4731         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4732         # Treat x32 as x64 for now. Note it also needs spic=$shared
4733         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4734             subarch=x86_64
4735         if test "$subarch" = "x86_64"; then
4736             spic=$shared
4737         fi
4738     ;;
4739     ppc)
4740         check_cc <<EOF && subarch="ppc64"
4741         int test[(int)sizeof(char*) - 7];
4742 EOF
4743     ;;
4744 esac
4745
4746 enable $subarch
4747 enabled spic && enable_weak pic
4748
4749 # OS specific
4750 case $target_os in
4751     aix)
4752         SHFLAGS=-shared
4753         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4754         enabled shared && add_ldflags -Wl,-brtl
4755         ;;
4756     android)
4757         disable symver
4758         enable section_data_rel_ro
4759         SLIB_INSTALL_NAME='$(SLIBNAME)'
4760         SLIB_INSTALL_LINKS=
4761         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4762         ;;
4763     haiku)
4764         prefix_default="/boot/common"
4765         network_extralibs="-lnetwork"
4766         host_libs=
4767         ;;
4768     sunos)
4769         SHFLAGS='-shared -Wl,-h,$$(@F)'
4770         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4771         network_extralibs="-lsocket -lnsl"
4772         add_cppflags -D__EXTENSIONS__
4773         # When using suncc to build, the Solaris linker will mark
4774         # an executable with each instruction set encountered by
4775         # the Solaris assembler.  As our libraries contain their own
4776         # guards for processor-specific code, instead suppress
4777         # generation of the HWCAPS ELF section on Solaris x86 only.
4778         enabled_all suncc x86 &&
4779             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4780             add_ldflags -Wl,-M,mapfile
4781         nm_default='nm -P -g'
4782         version_script='-M'
4783         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4784         ;;
4785     netbsd)
4786         disable symver
4787         oss_indev_extralibs="-lossaudio"
4788         oss_outdev_extralibs="-lossaudio"
4789         enabled gcc || check_ldflags -Wl,-zmuldefs
4790         ;;
4791     openbsd|bitrig)
4792         disable symver
4793         SHFLAGS='-shared'
4794         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4795         SLIB_INSTALL_LINKS=
4796         oss_indev_extralibs="-lossaudio"
4797         oss_outdev_extralibs="-lossaudio"
4798         ;;
4799     dragonfly)
4800         disable symver
4801         ;;
4802     freebsd)
4803         ;;
4804     bsd/os)
4805         add_extralibs -lpoll -lgnugetopt
4806         strip="strip -d"
4807         ;;
4808     darwin)
4809         enabled ppc && add_asflags -force_cpusubtype_ALL
4810         install_name_dir_default='$(SHLIBDIR)'
4811         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4812         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4813         strip="${strip} -x"
4814         add_ldflags -Wl,-dynamic,-search_paths_first
4815         SLIBSUF=".dylib"
4816         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4817         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4818         objformat="macho"
4819         enabled x86_64 && objformat="macho64"
4820         enabled_any pic shared x86_64 ||
4821             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4822         check_header dispatch/dispatch.h &&
4823             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4824         version_script='-exported_symbols_list'
4825         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4826         ;;
4827     msys*)
4828         die "Native MSYS builds are discouraged, please use the MINGW environment."
4829         ;;
4830     mingw32*|mingw64*)
4831         if test $target_os = "mingw32ce"; then
4832             disable network
4833         else
4834             target_os=mingw32
4835         fi
4836         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4837         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4838         LIBTARGET=i386
4839         if enabled x86_64; then
4840             LIBTARGET="i386:x86-64"
4841         elif enabled arm; then
4842             LIBTARGET=arm-wince
4843         fi
4844         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4845         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4846         shlibdir_default="$bindir_default"
4847         SLIBPREF=""
4848         SLIBSUF=".dll"
4849         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4850         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4851         dlltool="${cross_prefix}dlltool"
4852         if check_cmd lib.exe -list; then
4853             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4854             if enabled x86_64; then
4855                 LIBTARGET=x64
4856             fi
4857         elif check_cmd $dlltool --version; then
4858             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'