Merge commit 'd4f2a681cb6d4e913f1c879ad376313255d6cf4c'
[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) echo $v ;; esac"
527     done
528 }
529
530 filter_out(){
531     pat=$1
532     shift
533     for v; do
534         eval "case $v in $pat) ;; *) echo $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     xlib
2082 "
2083
2084 # options emitted with CONFIG_ prefix but not available on the command line
2085 CONFIG_EXTRA="
2086     aandcttables
2087     ac3dsp
2088     audio_frame_queue
2089     audiodsp
2090     blockdsp
2091     bswapdsp
2092     cabac
2093     dirac_parse
2094     dvprofile
2095     exif
2096     faandct
2097     faanidct
2098     fdctdsp
2099     flacdsp
2100     fmtconvert
2101     frame_thread_encoder
2102     g722dsp
2103     golomb
2104     gplv3
2105     h263dsp
2106     h264chroma
2107     h264dsp
2108     h264parse
2109     h264pred
2110     h264qpel
2111     hpeldsp
2112     huffman
2113     huffyuvdsp
2114     huffyuvencdsp
2115     idctdsp
2116     iirfilter
2117     mdct15
2118     intrax8
2119     iso_media
2120     ividsp
2121     jpegtables
2122     lgplv3
2123     libx262
2124     llauddsp
2125     llviddsp
2126     llvidencdsp
2127     lpc
2128     lzf
2129     me_cmp
2130     mpeg_er
2131     mpegaudio
2132     mpegaudiodsp
2133     mpegvideo
2134     mpegvideoenc
2135     mss34dsp
2136     pixblockdsp
2137     qpeldsp
2138     qsv
2139     qsvdec
2140     qsvenc
2141     rangecoder
2142     riffdec
2143     riffenc
2144     rtpdec
2145     rtpenc_chain
2146     rv34dsp
2147     sinewin
2148     snappy
2149     srtp
2150     startcode
2151     texturedsp
2152     texturedspenc
2153     tpeldsp
2154     vaapi_encode
2155     vc1dsp
2156     videodsp
2157     vp3dsp
2158     vp56dsp
2159     vp8dsp
2160     vt_bt2020
2161     wma_freqs
2162     wmv2dsp
2163 "
2164
2165 CMDLINE_SELECT="
2166     $ARCH_EXT_LIST
2167     $CONFIG_LIST
2168     $HAVE_LIST_CMDLINE
2169     $THREADS_LIST
2170     asm
2171     cross_compile
2172     debug
2173     extra_warnings
2174     logging
2175     lto
2176     optimizations
2177     rpath
2178     stripping
2179 "
2180
2181 PATHS_LIST="
2182     bindir
2183     datadir
2184     docdir
2185     incdir
2186     libdir
2187     mandir
2188     pkgconfigdir
2189     prefix
2190     shlibdir
2191     install_name_dir
2192 "
2193
2194 CMDLINE_SET="
2195     $PATHS_LIST
2196     ar
2197     arch
2198     as
2199     assert_level
2200     build_suffix
2201     cc
2202     objcc
2203     cpu
2204     cross_prefix
2205     custom_allocator
2206     cxx
2207     dep_cc
2208     doxygen
2209     env
2210     extra_version
2211     gas
2212     host_cc
2213     host_cflags
2214     host_ld
2215     host_ldflags
2216     host_libs
2217     host_os
2218     install
2219     ld
2220     ln_s
2221     logfile
2222     malloc_prefix
2223     nm
2224     optflags
2225     pkg_config
2226     pkg_config_flags
2227     progs_suffix
2228     random_seed
2229     ranlib
2230     samples
2231     strip
2232     sws_max_filter_size
2233     sysinclude
2234     sysroot
2235     target_exec
2236     target_os
2237     target_path
2238     target_samples
2239     tempprefix
2240     toolchain
2241     valgrind
2242     yasmexe
2243 "
2244
2245 CMDLINE_APPEND="
2246     extra_cflags
2247     extra_cxxflags
2248     extra_objcflags
2249     host_cppflags
2250 "
2251
2252 # code dependency declarations
2253
2254 # architecture extensions
2255
2256 armv5te_deps="arm"
2257 armv6_deps="arm"
2258 armv6t2_deps="arm"
2259 armv8_deps="aarch64"
2260 neon_deps_any="aarch64 arm"
2261 intrinsics_neon_deps="neon"
2262 vfp_deps_any="aarch64 arm"
2263 vfpv3_deps="vfp"
2264 setend_deps="arm"
2265
2266 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2267
2268 loongson2_deps="mips"
2269 loongson3_deps="mips"
2270 mipsfpu_deps="mips"
2271 mipsdsp_deps="mips"
2272 mipsdspr2_deps="mips"
2273 mips32r2_deps="mips"
2274 mips32r5_deps="mips"
2275 mips32r6_deps="mips"
2276 mips64r2_deps="mips"
2277 mips64r6_deps="mips"
2278 msa_deps="mipsfpu"
2279 mmi_deps="mips"
2280
2281 altivec_deps="ppc"
2282 dcbzl_deps="ppc"
2283 ldbrx_deps="ppc"
2284 ppc4xx_deps="ppc"
2285 vsx_deps="altivec"
2286 power8_deps="vsx"
2287
2288 cpunop_deps="i686"
2289 x86_64_select="i686"
2290 x86_64_suggest="fast_cmov"
2291
2292 amd3dnow_deps="mmx"
2293 amd3dnowext_deps="amd3dnow"
2294 i686_deps="x86"
2295 mmx_deps="x86"
2296 mmxext_deps="mmx"
2297 sse_deps="mmxext"
2298 sse2_deps="sse"
2299 sse3_deps="sse2"
2300 ssse3_deps="sse3"
2301 sse4_deps="ssse3"
2302 sse42_deps="sse4"
2303 aesni_deps="sse42"
2304 avx_deps="sse42"
2305 xop_deps="avx"
2306 fma3_deps="avx"
2307 fma4_deps="avx"
2308 avx2_deps="avx"
2309
2310 mmx_external_deps="yasm"
2311 mmx_inline_deps="inline_asm"
2312 mmx_suggest="mmx_external mmx_inline"
2313
2314 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2315     eval dep=\$${ext}_deps
2316     eval ${ext}_external_deps='"${dep}_external"'
2317     eval ${ext}_inline_deps='"${dep}_inline"'
2318     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2319 done
2320
2321 aligned_stack_if_any="aarch64 ppc x86"
2322 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2323 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2324 fast_unaligned_if_any="aarch64 ppc x86"
2325 simd_align_16_if_any="altivec neon sse"
2326 simd_align_32_if_any="avx"
2327
2328 # system capabilities
2329 symver_if_any="symver_asm_label symver_gnu_asm"
2330 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2331
2332 # threading support
2333 atomics_gcc_if="sync_val_compare_and_swap"
2334 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2335 atomics_win32_if="MemoryBarrier"
2336 atomics_native_if_any="$ATOMICS_LIST"
2337 w32threads_deps="atomics_native"
2338 threads_if_any="$THREADS_LIST"
2339
2340 # subsystems
2341 dct_select="rdft"
2342 dirac_parse_select="golomb"
2343 error_resilience_select="me_cmp"
2344 faandct_deps="faan fdctdsp"
2345 faanidct_deps="faan idctdsp"
2346 h264dsp_select="startcode"
2347 frame_thread_encoder_deps="encoders threads"
2348 intrax8_select="blockdsp idctdsp"
2349 mdct_select="fft"
2350 mdct15_select="fft"
2351 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2352 mpeg_er_select="error_resilience"
2353 mpegaudio_select="mpegaudiodsp"
2354 mpegaudiodsp_select="dct"
2355 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2356 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2357 vc1dsp_select="h264chroma qpeldsp startcode"
2358 rdft_select="fft"
2359
2360 # decoders / encoders
2361 aac_decoder_select="mdct15 mdct sinewin"
2362 aac_fixed_decoder_select="mdct sinewin"
2363 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2364 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2365 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2366 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2367 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2368 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2369 adpcm_g722_decoder_select="g722dsp"
2370 adpcm_g722_encoder_select="g722dsp"
2371 aic_decoder_select="golomb idctdsp"
2372 alac_encoder_select="lpc"
2373 als_decoder_select="bswapdsp"
2374 amrnb_decoder_select="lsp"
2375 amrwb_decoder_select="lsp"
2376 amv_decoder_select="sp5x_decoder exif"
2377 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2378 ape_decoder_select="bswapdsp llauddsp"
2379 apng_decoder_select="zlib"
2380 apng_encoder_select="llvidencdsp zlib"
2381 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2382 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2383 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2384 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2385 atrac1_decoder_select="mdct sinewin"
2386 atrac3_decoder_select="mdct"
2387 atrac3p_decoder_select="mdct sinewin"
2388 avrn_decoder_select="exif jpegtables"
2389 bink_decoder_select="blockdsp hpeldsp"
2390 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2391 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2392 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2393 cllc_decoder_select="bswapdsp"
2394 comfortnoise_encoder_select="lpc"
2395 cook_decoder_select="audiodsp mdct sinewin"
2396 cscd_decoder_select="lzo"
2397 cscd_decoder_suggest="zlib"
2398 dca_decoder_select="mdct"
2399 dds_decoder_select="texturedsp"
2400 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2401 dnxhd_decoder_select="blockdsp idctdsp"
2402 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2403 dvvideo_decoder_select="dvprofile idctdsp"
2404 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2405 dxa_decoder_select="zlib"
2406 dxv_decoder_select="lzf texturedsp"
2407 eac3_decoder_select="ac3_decoder"
2408 eac3_encoder_select="ac3_encoder"
2409 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2410 eatgq_decoder_select="aandcttables"
2411 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2412 exr_decoder_select="zlib"
2413 ffv1_decoder_select="golomb rangecoder"
2414 ffv1_encoder_select="rangecoder"
2415 ffvhuff_decoder_select="huffyuv_decoder"
2416 ffvhuff_encoder_select="huffyuv_encoder"
2417 fic_decoder_select="golomb"
2418 flac_decoder_select="flacdsp golomb"
2419 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2420 flashsv2_decoder_select="zlib"
2421 flashsv2_encoder_select="zlib"
2422 flashsv_decoder_select="zlib"
2423 flashsv_encoder_select="zlib"
2424 flv_decoder_select="h263_decoder"
2425 flv_encoder_select="h263_encoder"
2426 fourxm_decoder_select="blockdsp bswapdsp"
2427 fraps_decoder_select="bswapdsp huffman"
2428 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2429 g729_decoder_select="audiodsp"
2430 h261_decoder_select="mpegvideo"
2431 h261_encoder_select="aandcttables mpegvideoenc"
2432 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2433 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2434 h263i_decoder_select="h263_decoder"
2435 h263p_decoder_select="h263_decoder"
2436 h263p_encoder_select="h263_encoder"
2437 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2438 h264_decoder_suggest="error_resilience"
2439 hap_decoder_select="snappy texturedsp"
2440 hap_encoder_deps="libsnappy"
2441 hap_encoder_select="texturedspenc"
2442 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2443 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2444 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2445 iac_decoder_select="imc_decoder"
2446 imc_decoder_select="bswapdsp fft mdct sinewin"
2447 indeo3_decoder_select="hpeldsp"
2448 indeo4_decoder_select="ividsp"
2449 indeo5_decoder_select="ividsp"
2450 interplay_video_decoder_select="hpeldsp"
2451 jpegls_decoder_select="golomb mjpeg_decoder"
2452 jpegls_encoder_select="golomb"
2453 jv_decoder_select="blockdsp"
2454 lagarith_decoder_select="llviddsp"
2455 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2456 loco_decoder_select="golomb"
2457 magicyuv_decoder_select="llviddsp"
2458 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2459 metasound_decoder_select="lsp mdct sinewin"
2460 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2461 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2462 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2463 mjpegb_decoder_select="mjpeg_decoder"
2464 mlp_decoder_select="mlp_parser"
2465 motionpixels_decoder_select="bswapdsp"
2466 mp1_decoder_select="mpegaudio"
2467 mp1float_decoder_select="mpegaudio"
2468 mp2_decoder_select="mpegaudio"
2469 mp2float_decoder_select="mpegaudio"
2470 mp3_decoder_select="mpegaudio"
2471 mp3adu_decoder_select="mpegaudio"
2472 mp3adufloat_decoder_select="mpegaudio"
2473 mp3float_decoder_select="mpegaudio"
2474 mp3on4_decoder_select="mpegaudio"
2475 mp3on4float_decoder_select="mpegaudio"
2476 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2477 mpc8_decoder_select="mpegaudiodsp"
2478 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2479 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2480 mpegvideo_decoder_select="mpegvideo"
2481 mpeg1video_decoder_select="mpegvideo"
2482 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2483 mpeg2video_decoder_select="mpegvideo"
2484 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2485 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2486 mpeg4_encoder_select="h263_encoder"
2487 msa1_decoder_select="mss34dsp"
2488 msmpeg4v1_decoder_select="h263_decoder"
2489 msmpeg4v2_decoder_select="h263_decoder"
2490 msmpeg4v2_encoder_select="h263_encoder"
2491 msmpeg4v3_decoder_select="h263_decoder"
2492 msmpeg4v3_encoder_select="h263_encoder"
2493 mss2_decoder_select="vc1_decoder mpegvideo"
2494 mts2_decoder_select="mss34dsp"
2495 mxpeg_decoder_select="mjpeg_decoder"
2496 nellymoser_decoder_select="mdct sinewin"
2497 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2498 nuv_decoder_select="idctdsp lzo"
2499 on2avc_decoder_select="mdct"
2500 opus_decoder_deps="swresample"
2501 opus_decoder_select="mdct15"
2502 opus_encoder_select="audio_frame_queue mdct15"
2503 png_decoder_select="zlib"
2504 png_encoder_select="llvidencdsp zlib"
2505 prores_decoder_select="blockdsp idctdsp"
2506 prores_encoder_select="fdctdsp"
2507 qcelp_decoder_select="lsp"
2508 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2509 ra_144_decoder_select="audiodsp"
2510 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2511 ralf_decoder_select="golomb"
2512 rawvideo_decoder_select="bswapdsp"
2513 rscc_decoder_select="zlib"
2514 rtjpeg_decoder_select="me_cmp"
2515 rv10_decoder_select="h263_decoder"
2516 rv10_encoder_select="h263_encoder"
2517 rv20_decoder_select="h263_decoder"
2518 rv20_encoder_select="h263_encoder"
2519 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2520 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2521 screenpresso_decoder_select="zlib"
2522 shorten_decoder_select="golomb bswapdsp"
2523 sipr_decoder_select="lsp"
2524 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2525 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2526 sonic_decoder_select="golomb rangecoder"
2527 sonic_encoder_select="golomb rangecoder"
2528 sonic_ls_encoder_select="golomb rangecoder"
2529 sp5x_decoder_select="mjpeg_decoder"
2530 svq1_decoder_select="hpeldsp"
2531 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2532 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2533 svq3_decoder_suggest="zlib"
2534 tak_decoder_select="audiodsp"
2535 tdsc_decoder_select="zlib mjpeg_decoder"
2536 theora_decoder_select="vp3_decoder"
2537 thp_decoder_select="mjpeg_decoder"
2538 tiff_decoder_suggest="zlib lzma"
2539 tiff_encoder_suggest="zlib"
2540 truehd_decoder_select="mlp_parser"
2541 truemotion2_decoder_select="bswapdsp"
2542 truespeech_decoder_select="bswapdsp"
2543 tscc_decoder_select="zlib"
2544 twinvq_decoder_select="mdct lsp sinewin"
2545 txd_decoder_select="texturedsp"
2546 utvideo_decoder_select="bswapdsp llviddsp"
2547 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2548 vble_decoder_select="llviddsp"
2549 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2550 vc1_qsv_decoder_deps="libmfx"
2551 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2552 vc1image_decoder_select="vc1_decoder"
2553 vorbis_decoder_select="mdct"
2554 vorbis_encoder_select="mdct"
2555 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2556 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2557 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2558 vp6a_decoder_select="vp6_decoder"
2559 vp6f_decoder_select="vp6_decoder"
2560 vp7_decoder_select="h264pred videodsp vp8dsp"
2561 vp8_decoder_select="h264pred videodsp vp8dsp"
2562 vp9_decoder_select="videodsp vp9_parser"
2563 webp_decoder_select="vp8_decoder exif"
2564 wmalossless_decoder_select="llauddsp"
2565 wmapro_decoder_select="mdct sinewin wma_freqs"
2566 wmav1_decoder_select="mdct sinewin wma_freqs"
2567 wmav1_encoder_select="mdct sinewin wma_freqs"
2568 wmav2_decoder_select="mdct sinewin wma_freqs"
2569 wmav2_encoder_select="mdct sinewin wma_freqs"
2570 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2571 wmv1_decoder_select="h263_decoder"
2572 wmv1_encoder_select="h263_encoder"
2573 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2574 wmv2_encoder_select="h263_encoder wmv2dsp"
2575 wmv3_decoder_select="vc1_decoder"
2576 wmv3image_decoder_select="wmv3_decoder"
2577 xma1_decoder_select="wmapro_decoder"
2578 xma2_decoder_select="wmapro_decoder"
2579 zerocodec_decoder_select="zlib"
2580 zlib_decoder_select="zlib"
2581 zlib_encoder_select="zlib"
2582 zmbv_decoder_select="zlib"
2583 zmbv_encoder_select="zlib"
2584
2585 # platform codecs
2586 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2587 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2588
2589 # hardware accelerators
2590 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2591 cuda_deps_any="dlopen LoadLibrary"
2592 cuvid_deps="cuda"
2593 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2594 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2595 dxva2_extralibs="-luser32"
2596 vaapi_deps="va_va_h"
2597 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2598 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2599 vda_deps="vda_framework pthreads"
2600 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2601 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2602 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2603 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2604 xvmc_deps="X11_extensions_XvMClib_h"
2605
2606 h263_vaapi_hwaccel_deps="vaapi"
2607 h263_vaapi_hwaccel_select="h263_decoder"
2608 h263_videotoolbox_hwaccel_deps="videotoolbox"
2609 h263_videotoolbox_hwaccel_select="h263_decoder"
2610 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2611 h264_cuvid_hwaccel_deps="cuda cuvid"
2612 h264_cuvid_hwaccel_select="h264_cuvid_decoder"
2613 h264_d3d11va_hwaccel_deps="d3d11va"
2614 h264_d3d11va_hwaccel_select="h264_decoder"
2615 h264_dxva2_hwaccel_deps="dxva2"
2616 h264_dxva2_hwaccel_select="h264_decoder"
2617 h264_mediacodec_decoder_deps="mediacodec"
2618 h264_mediacodec_hwaccel_deps="mediacodec"
2619 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2620 h264_mmal_decoder_deps="mmal"
2621 h264_mmal_hwaccel_deps="mmal"
2622 h264_omx_encoder_deps="omx"
2623 h264_qsv_hwaccel_deps="libmfx"
2624 h264_vaapi_hwaccel_deps="vaapi"
2625 h264_vaapi_hwaccel_select="h264_decoder"
2626 h264_vda_decoder_deps="vda"
2627 h264_vda_decoder_select="h264_decoder"
2628 h264_vda_hwaccel_deps="vda"
2629 h264_vda_hwaccel_select="h264_decoder"
2630 h264_vda_old_hwaccel_deps="vda"
2631 h264_vda_old_hwaccel_select="h264_decoder"
2632 h264_vdpau_decoder_deps="vdpau"
2633 h264_vdpau_decoder_select="h264_decoder"
2634 h264_vdpau_hwaccel_deps="vdpau"
2635 h264_vdpau_hwaccel_select="h264_decoder"
2636 h264_videotoolbox_hwaccel_deps="videotoolbox"
2637 h264_videotoolbox_hwaccel_select="h264_decoder"
2638 hevc_cuvid_hwaccel_deps="cuda cuvid"
2639 hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
2640 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2641 hevc_d3d11va_hwaccel_select="hevc_decoder"
2642 hevc_mediacodec_decoder_deps="mediacodec"
2643 hevc_mediacodec_hwaccel_deps="mediacodec"
2644 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2645 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2646 hevc_dxva2_hwaccel_select="hevc_decoder"
2647 hevc_qsv_hwaccel_deps="libmfx"
2648 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2649 hevc_vaapi_hwaccel_select="hevc_decoder"
2650 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2651 hevc_vdpau_hwaccel_select="hevc_decoder"
2652 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2653 mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
2654 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2655 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2656 mpeg_vdpau_decoder_deps="vdpau"
2657 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2658 mpeg_xvmc_hwaccel_deps="xvmc"
2659 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2660 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2661 mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
2662 mpeg1_vdpau_decoder_deps="vdpau"
2663 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2664 mpeg1_vdpau_hwaccel_deps="vdpau"
2665 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2666 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2667 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2668 mpeg1_xvmc_hwaccel_deps="xvmc"
2669 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2670 mpeg2_crystalhd_decoder_select="crystalhd"
2671 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2672 mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
2673 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2674 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2675 mpeg2_dxva2_hwaccel_deps="dxva2"
2676 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2677 mpeg2_mmal_decoder_deps="mmal"
2678 mpeg2_mmal_hwaccel_deps="mmal"
2679 mpeg2_qsv_hwaccel_deps="libmfx"
2680 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2681 mpeg2_vaapi_hwaccel_deps="vaapi"
2682 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2683 mpeg2_vdpau_hwaccel_deps="vdpau"
2684 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2685 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2686 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2687 mpeg2_xvmc_hwaccel_deps="xvmc"
2688 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2689 mpeg4_crystalhd_decoder_select="crystalhd"
2690 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2691 mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
2692 mpeg4_mediacodec_decoder_deps="mediacodec"
2693 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2694 mpeg4_mmal_decoder_deps="mmal"
2695 mpeg4_mmal_hwaccel_deps="mmal"
2696 mpeg4_omx_encoder_deps="omx"
2697 mpeg4_vaapi_hwaccel_deps="vaapi"
2698 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2699 mpeg4_vdpau_decoder_deps="vdpau"
2700 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2701 mpeg4_vdpau_hwaccel_deps="vdpau"
2702 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2703 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2704 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2705 msmpeg4_crystalhd_decoder_select="crystalhd"
2706 vc1_crystalhd_decoder_select="crystalhd"
2707 vc1_cuvid_hwaccel_deps="cuda cuvid"
2708 vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
2709 vc1_d3d11va_hwaccel_deps="d3d11va"
2710 vc1_d3d11va_hwaccel_select="vc1_decoder"
2711 vc1_dxva2_hwaccel_deps="dxva2"
2712 vc1_dxva2_hwaccel_select="vc1_decoder"
2713 vc1_mmal_decoder_deps="mmal"
2714 vc1_mmal_hwaccel_deps="mmal"
2715 vc1_qsv_hwaccel_deps="libmfx"
2716 vc1_qsv_hwaccel_select="qsvdec_vc1"
2717 vc1_vaapi_hwaccel_deps="vaapi"
2718 vc1_vaapi_hwaccel_select="vc1_decoder"
2719 vc1_vdpau_decoder_deps="vdpau"
2720 vc1_vdpau_decoder_select="vc1_decoder"
2721 vc1_vdpau_hwaccel_deps="vdpau"
2722 vc1_vdpau_hwaccel_select="vc1_decoder"
2723 vp8_cuvid_hwaccel_deps="cuda cuvid"
2724 vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
2725 vp9_cuvid_hwaccel_deps="cuda cuvid"
2726 vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
2727 vp8_mediacodec_decoder_deps="mediacodec"
2728 vp8_mediacodec_hwaccel_deps="mediacodec"
2729 vp8_qsv_hwaccel_deps="libmfx"
2730 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2731 vp9_d3d11va_hwaccel_select="vp9_decoder"
2732 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2733 vp9_dxva2_hwaccel_select="vp9_decoder"
2734 vp9_mediacodec_decoder_deps="mediacodec"
2735 vp9_mediacodec_hwaccel_deps="mediacodec"
2736 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2737 vp9_vaapi_hwaccel_select="vp9_decoder"
2738 wmv3_crystalhd_decoder_select="crystalhd"
2739 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2740 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2741 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2742 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2743 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2744
2745 # hardware-accelerated codecs
2746 omx_deps="dlopen pthreads"
2747 omx_extralibs='$ldl'
2748 qsvdec_select="qsv"
2749 qsvenc_select="qsv"
2750 vaapi_encode_deps="vaapi"
2751
2752 hwupload_cuda_filter_deps="cuda"
2753 scale_npp_filter_deps="cuda libnpp"
2754
2755 nvenc_deps="cuda"
2756 nvenc_deps_any="dlopen LoadLibrary"
2757 nvenc_encoder_deps="nvenc"
2758 h264_cuvid_decoder_deps="cuda cuvid"
2759 h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
2760 h264_nvenc_encoder_deps="nvenc"
2761 h264_qsv_decoder_deps="libmfx"
2762 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2763 h264_qsv_encoder_deps="libmfx"
2764 h264_qsv_encoder_select="qsvenc"
2765 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2766 h264_vaapi_encoder_select="vaapi_encode golomb"
2767
2768 hevc_cuvid_decoder_deps="cuda cuvid"
2769 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
2770 hevc_nvenc_encoder_deps="nvenc"
2771 hevc_qsv_decoder_deps="libmfx"
2772 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2773 hevc_qsv_encoder_deps="libmfx"
2774 hevc_qsv_encoder_select="qsvenc"
2775 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2776 hevc_vaapi_encoder_select="vaapi_encode golomb"
2777 mjpeg_cuvid_decoder_deps="cuda cuvid"
2778 mpeg1_cuvid_decoder_deps="cuda cuvid"
2779 mpeg2_cuvid_decoder_deps="cuda cuvid"
2780 mpeg2_qsv_decoder_deps="libmfx"
2781 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2782 mpeg2_qsv_encoder_deps="libmfx"
2783 mpeg2_qsv_encoder_select="qsvenc"
2784 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2785 mpeg2_vaapi_encoder_select="vaapi_encode"
2786 mpeg4_cuvid_decoder_deps="cuda cuvid"
2787 nvenc_h264_encoder_deps="nvenc"
2788 nvenc_hevc_encoder_deps="nvenc"
2789
2790 vc1_cuvid_decoder_deps="cuda cuvid"
2791 vp8_cuvid_decoder_deps="cuda cuvid"
2792 vp8_qsv_decoder_deps="libmfx"
2793 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2794 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2795 vp8_vaapi_encoder_select="vaapi_encode"
2796 vp9_cuvid_decoder_deps="cuda cuvid"
2797
2798 # parsers
2799 h264_parser_select="golomb h264dsp h264parse"
2800 hevc_parser_select="golomb"
2801 mpegvideo_parser_select="mpegvideo"
2802 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2803 vc1_parser_select="vc1dsp"
2804
2805 # bitstream_filters
2806 mjpeg2jpeg_bsf_select="jpegtables"
2807
2808 # external libraries
2809 aac_at_decoder_deps="audiotoolbox"
2810 ac3_at_decoder_deps="audiotoolbox"
2811 ac3_at_decoder_select="ac3_parser"
2812 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2813 alac_at_decoder_deps="audiotoolbox"
2814 amr_nb_at_decoder_deps="audiotoolbox"
2815 avisynth_deps_any="dlopen LoadLibrary"
2816 avisynth_demuxer_deps="avisynth"
2817 avisynth_demuxer_select="riffdec"
2818 eac3_at_decoder_deps="audiotoolbox"
2819 eac3_at_decoder_select="ac3_parser"
2820 gsm_ms_at_decoder_deps="audiotoolbox"
2821 ilbc_at_decoder_deps="audiotoolbox"
2822 mp1_at_decoder_deps="audiotoolbox"
2823 mp2_at_decoder_deps="audiotoolbox"
2824 mp3_at_decoder_deps="audiotoolbox"
2825 pcm_alaw_at_decoder_deps="audiotoolbox"
2826 pcm_mulaw_at_decoder_deps="audiotoolbox"
2827 qdmc_at_decoder_deps="audiotoolbox"
2828 qdm2_at_decoder_deps="audiotoolbox"
2829 aac_at_encoder_deps="audiotoolbox"
2830 aac_at_encoder_select="audio_frame_queue"
2831 alac_at_encoder_deps="audiotoolbox"
2832 alac_at_encoder_select="audio_frame_queue"
2833 ilbc_at_encoder_deps="audiotoolbox"
2834 ilbc_at_encoder_select="audio_frame_queue"
2835 pcm_alaw_at_encoder_deps="audiotoolbox"
2836 pcm_alaw_at_encoder_select="audio_frame_queue"
2837 pcm_mulaw_at_encoder_deps="audiotoolbox"
2838 pcm_mulaw_at_encoder_select="audio_frame_queue"
2839 chromaprint_muxer_deps="chromaprint"
2840 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2841 libcelt_decoder_deps="libcelt"
2842 libfdk_aac_decoder_deps="libfdk_aac"
2843 libfdk_aac_encoder_deps="libfdk_aac"
2844 libfdk_aac_encoder_select="audio_frame_queue"
2845 libgme_demuxer_deps="libgme"
2846 libgsm_decoder_deps="libgsm"
2847 libgsm_encoder_deps="libgsm"
2848 libgsm_ms_decoder_deps="libgsm"
2849 libgsm_ms_encoder_deps="libgsm"
2850 libilbc_decoder_deps="libilbc"
2851 libilbc_encoder_deps="libilbc"
2852 libkvazaar_encoder_deps="libkvazaar"
2853 libmodplug_demuxer_deps="libmodplug"
2854 libmp3lame_encoder_deps="libmp3lame"
2855 libmp3lame_encoder_select="audio_frame_queue"
2856 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2857 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2858 libopencore_amrnb_encoder_select="audio_frame_queue"
2859 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2860 libopenh264_decoder_deps="libopenh264"
2861 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2862 libopenh264_encoder_deps="libopenh264"
2863 libopenjpeg_decoder_deps="libopenjpeg"
2864 libopenjpeg_encoder_deps="libopenjpeg"
2865 libopenmpt_demuxer_deps="libopenmpt"
2866 libopus_decoder_deps="libopus"
2867 libopus_encoder_deps="libopus"
2868 libopus_encoder_select="audio_frame_queue"
2869 libschroedinger_decoder_deps="libschroedinger"
2870 libschroedinger_encoder_deps="libschroedinger"
2871 libshine_encoder_deps="libshine"
2872 libshine_encoder_select="audio_frame_queue"
2873 libspeex_decoder_deps="libspeex"
2874 libspeex_encoder_deps="libspeex"
2875 libspeex_encoder_select="audio_frame_queue"
2876 libtheora_encoder_deps="libtheora"
2877 libtwolame_encoder_deps="libtwolame"
2878 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2879 libvorbis_decoder_deps="libvorbis"
2880 libvorbis_encoder_deps="libvorbis"
2881 libvorbis_encoder_select="audio_frame_queue"
2882 libvpx_vp8_decoder_deps="libvpx"
2883 libvpx_vp8_encoder_deps="libvpx"
2884 libvpx_vp9_decoder_deps="libvpx"
2885 libvpx_vp9_encoder_deps="libvpx"
2886 libwavpack_encoder_deps="libwavpack"
2887 libwebp_encoder_deps="libwebp"
2888 libwebp_anim_encoder_deps="libwebp"
2889 libx262_encoder_deps="libx262"
2890 libx264_encoder_deps="libx264"
2891 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2892 libx264rgb_encoder_select="libx264_encoder"
2893 libx265_encoder_deps="libx265"
2894 libxavs_encoder_deps="libxavs"
2895 libxvid_encoder_deps="libxvid"
2896 libzvbi_teletext_decoder_deps="libzvbi"
2897 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2898 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2899 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2900 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2901 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2902
2903 # demuxers / muxers
2904 ac3_demuxer_select="ac3_parser"
2905 aiff_muxer_select="iso_media"
2906 asf_demuxer_select="riffdec"
2907 asf_o_demuxer_select="riffdec"
2908 asf_muxer_select="riffenc"
2909 asf_stream_muxer_select="asf_muxer"
2910 avi_demuxer_select="iso_media riffdec exif"
2911 avi_muxer_select="riffenc"
2912 caf_demuxer_select="iso_media riffdec"
2913 caf_muxer_select="iso_media"
2914 dash_muxer_select="mp4_muxer"
2915 dirac_demuxer_select="dirac_parser"
2916 dts_demuxer_select="dca_parser"
2917 dtshd_demuxer_select="dca_parser"
2918 dv_demuxer_select="dvprofile"
2919 dv_muxer_select="dvprofile"
2920 dxa_demuxer_select="riffdec"
2921 eac3_demuxer_select="ac3_parser"
2922 f4v_muxer_select="mov_muxer"
2923 fifo_muxer_deps="threads"
2924 flac_demuxer_select="flac_parser"
2925 hds_muxer_select="flv_muxer"
2926 hls_muxer_select="mpegts_muxer"
2927 image2_alias_pix_demuxer_select="image2_demuxer"
2928 image2_brender_pix_demuxer_select="image2_demuxer"
2929 ipod_muxer_select="mov_muxer"
2930 ismv_muxer_select="mov_muxer"
2931 libnut_demuxer_deps="libnut"
2932 libnut_muxer_deps="libnut"
2933 matroska_audio_muxer_select="matroska_muxer"
2934 matroska_demuxer_select="iso_media riffdec"
2935 matroska_demuxer_suggest="bzlib lzo zlib"
2936 matroska_muxer_select="iso_media riffenc"
2937 mmf_muxer_select="riffenc"
2938 mov_demuxer_select="iso_media riffdec"
2939 mov_demuxer_suggest="zlib"
2940 mov_muxer_select="iso_media riffenc rtpenc_chain"
2941 mp3_demuxer_select="mpegaudio_parser"
2942 mp4_muxer_select="mov_muxer"
2943 mpegts_demuxer_select="iso_media"
2944 mpegts_muxer_select="adts_muxer latm_muxer"
2945 mpegtsraw_demuxer_select="mpegts_demuxer"
2946 mxf_d10_muxer_select="mxf_muxer"
2947 mxf_opatom_muxer_select="mxf_muxer"
2948 nut_muxer_select="riffenc"
2949 nuv_demuxer_select="riffdec"
2950 oga_muxer_select="ogg_muxer"
2951 ogg_demuxer_select="dirac_parse"
2952 ogv_muxer_select="ogg_muxer"
2953 opus_muxer_select="ogg_muxer"
2954 psp_muxer_select="mov_muxer"
2955 rtp_demuxer_select="sdp_demuxer"
2956 rtp_muxer_select="golomb"
2957 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2958 rtsp_demuxer_select="http_protocol rtpdec"
2959 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2960 sap_demuxer_select="sdp_demuxer"
2961 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2962 sdp_demuxer_select="rtpdec"
2963 smoothstreaming_muxer_select="ismv_muxer"
2964 spdif_muxer_select="aac_parser"
2965 spx_muxer_select="ogg_muxer"
2966 swf_demuxer_suggest="zlib"
2967 tak_demuxer_select="tak_parser"
2968 tg2_muxer_select="mov_muxer"
2969 tgp_muxer_select="mov_muxer"
2970 vobsub_demuxer_select="mpegps_demuxer"
2971 w64_demuxer_select="wav_demuxer"
2972 w64_muxer_select="wav_muxer"
2973 wav_demuxer_select="riffdec"
2974 wav_muxer_select="riffenc"
2975 webm_muxer_select="iso_media riffenc"
2976 webm_dash_manifest_demuxer_select="matroska_demuxer"
2977 wtv_demuxer_select="mpegts_demuxer riffdec"
2978 wtv_muxer_select="mpegts_muxer riffenc"
2979 xmv_demuxer_select="riffdec"
2980 xwma_demuxer_select="riffdec"
2981
2982 # indevs / outdevs
2983 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2984 alsa_outdev_deps="alsa_asoundlib_h"
2985 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2986 avfoundation_indev_select="avfoundation"
2987 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2988 caca_outdev_deps="libcaca"
2989 decklink_indev_deps="decklink pthreads"
2990 decklink_indev_extralibs="-lstdc++"
2991 decklink_outdev_deps="decklink pthreads"
2992 decklink_outdev_extralibs="-lstdc++"
2993 dshow_indev_deps="IBaseFilter"
2994 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2995 dv1394_indev_deps="dv1394"
2996 dv1394_indev_select="dv_demuxer"
2997 fbdev_indev_deps="linux_fb_h"
2998 fbdev_outdev_deps="linux_fb_h"
2999 gdigrab_indev_deps="CreateDIBSection"
3000 gdigrab_indev_extralibs="-lgdi32"
3001 gdigrab_indev_select="bmp_decoder"
3002 iec61883_indev_deps="libiec61883"
3003 jack_indev_deps="jack_jack_h"
3004 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3005 lavfi_indev_deps="avfilter"
3006 libcdio_indev_deps="libcdio"
3007 libdc1394_indev_deps="libdc1394"
3008 libv4l2_indev_deps="libv4l2"
3009 openal_indev_deps="openal"
3010 opengl_outdev_deps="opengl"
3011 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3012 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3013 pulse_indev_deps="libpulse"
3014 pulse_outdev_deps="libpulse"
3015 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3016 qtkit_indev_select="qtkit"
3017 sdl2_outdev_deps="sdl2"
3018 sndio_indev_deps="sndio_h"
3019 sndio_outdev_deps="sndio_h"
3020 v4l_indev_deps="linux_videodev_h"
3021 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3022 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3023 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3024 vfwcap_indev_extralibs="-lavicap32"
3025 xcbgrab_indev_deps="libxcb"
3026 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3027 xv_outdev_extralibs="-lXv -lX11 -lXext"
3028
3029 # protocols
3030 async_protocol_deps="threads"
3031 bluray_protocol_deps="libbluray"
3032 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3033 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3034 ffrtmpcrypt_protocol_select="tcp_protocol"
3035 ffrtmphttp_protocol_deps="!librtmp_protocol"
3036 ffrtmphttp_protocol_select="http_protocol"
3037 ftp_protocol_select="tcp_protocol"
3038 gopher_protocol_select="network"
3039 http_protocol_select="tcp_protocol"
3040 httpproxy_protocol_select="tcp_protocol"
3041 https_protocol_select="tls_protocol"
3042 icecast_protocol_select="http_protocol"
3043 librtmp_protocol_deps="librtmp"
3044 librtmpe_protocol_deps="librtmp"
3045 librtmps_protocol_deps="librtmp"
3046 librtmpt_protocol_deps="librtmp"
3047 librtmpte_protocol_deps="librtmp"
3048 libsmbclient_protocol_deps="libsmbclient gplv3"
3049 libssh_protocol_deps="libssh"
3050 mmsh_protocol_select="http_protocol"
3051 mmst_protocol_select="network"
3052 rtmp_protocol_deps="!librtmp_protocol"
3053 rtmp_protocol_select="tcp_protocol"
3054 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3055 rtmps_protocol_deps="!librtmp_protocol"
3056 rtmps_protocol_select="tls_protocol"
3057 rtmpt_protocol_select="ffrtmphttp_protocol"
3058 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3059 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3060 rtp_protocol_select="udp_protocol"
3061 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3062 sctp_protocol_select="network"
3063 srtp_protocol_select="rtp_protocol srtp"
3064 tcp_protocol_select="network"
3065 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3066 tls_gnutls_protocol_select="tcp_protocol"
3067 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3068 tls_openssl_protocol_select="tcp_protocol"
3069 tls_schannel_protocol_deps="schannel"
3070 tls_schannel_protocol_select="tcp_protocol"
3071 tls_securetransport_protocol_deps="securetransport"
3072 tls_securetransport_protocol_select="tcp_protocol"
3073 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3074 udp_protocol_select="network"
3075 udplite_protocol_select="network"
3076 unix_protocol_deps="sys_un_h"
3077 unix_protocol_select="network"
3078
3079 # filters
3080 afftfilt_filter_deps="avcodec"
3081 afftfilt_filter_select="fft"
3082 amovie_filter_deps="avcodec avformat"
3083 aresample_filter_deps="swresample"
3084 ass_filter_deps="libass"
3085 atempo_filter_deps="avcodec"
3086 atempo_filter_select="rdft"
3087 azmq_filter_deps="libzmq"
3088 blackframe_filter_deps="gpl"
3089 boxblur_filter_deps="gpl"
3090 bs2b_filter_deps="libbs2b"
3091 colormatrix_filter_deps="gpl"
3092 cover_rect_filter_deps="avcodec avformat gpl"
3093 cropdetect_filter_deps="gpl"
3094 deinterlace_qsv_filter_deps="libmfx"
3095 deinterlace_vaapi_filter_deps="vaapi"
3096 delogo_filter_deps="gpl"
3097 deshake_filter_select="pixelutils"
3098 drawtext_filter_deps="libfreetype"
3099 eq_filter_deps="gpl"
3100 fftfilt_filter_deps="avcodec"
3101 fftfilt_filter_select="rdft"
3102 find_rect_filter_deps="avcodec avformat gpl"
3103 firequalizer_filter_deps="avcodec"
3104 firequalizer_filter_select="rdft"
3105 flite_filter_deps="libflite"
3106 framerate_filter_select="pixelutils"
3107 frei0r_filter_deps="frei0r dlopen"
3108 frei0r_src_filter_deps="frei0r dlopen"
3109 fspp_filter_deps="gpl"
3110 geq_filter_deps="gpl"
3111 histeq_filter_deps="gpl"
3112 hqdn3d_filter_deps="gpl"
3113 interlace_filter_deps="gpl"
3114 kerndeint_filter_deps="gpl"
3115 ladspa_filter_deps="ladspa dlopen"
3116 mcdeint_filter_deps="avcodec gpl"
3117 movie_filter_deps="avcodec avformat"
3118 mpdecimate_filter_deps="gpl"
3119 mpdecimate_filter_select="pixelutils"
3120 mptestsrc_filter_deps="gpl"
3121 negate_filter_deps="lut_filter"
3122 nnedi_filter_deps="gpl"
3123 ocr_filter_deps="libtesseract"
3124 ocv_filter_deps="libopencv"
3125 owdenoise_filter_deps="gpl"
3126 pan_filter_deps="swresample"
3127 perspective_filter_deps="gpl"
3128 phase_filter_deps="gpl"
3129 pp7_filter_deps="gpl"
3130 pp_filter_deps="gpl postproc"
3131 pullup_filter_deps="gpl"
3132 removelogo_filter_deps="avcodec avformat swscale"
3133 repeatfields_filter_deps="gpl"
3134 resample_filter_deps="avresample"
3135 rubberband_filter_deps="librubberband"
3136 sab_filter_deps="gpl swscale"
3137 scale2ref_filter_deps="swscale"
3138 scale_filter_deps="swscale"
3139 scale_qsv_filter_deps="libmfx"
3140 select_filter_select="pixelutils"
3141 showcqt_filter_deps="avcodec avformat swscale"
3142 showcqt_filter_select="fft"
3143 showfreqs_filter_deps="avcodec"
3144 showfreqs_filter_select="fft"
3145 showspectrum_filter_deps="avcodec"
3146 showspectrum_filter_select="fft"
3147 showspectrumpic_filter_deps="avcodec"
3148 showspectrumpic_filter_select="fft"
3149 signature_filter_deps="gpl avcodec avformat"
3150 smartblur_filter_deps="gpl swscale"
3151 sofalizer_filter_deps="netcdf avcodec"
3152 sofalizer_filter_select="fft"
3153 spectrumsynth_filter_deps="avcodec"
3154 spectrumsynth_filter_select="fft"
3155 spp_filter_deps="gpl avcodec"
3156 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3157 stereo3d_filter_deps="gpl"
3158 subtitles_filter_deps="avformat avcodec libass"
3159 super2xsai_filter_deps="gpl"
3160 pixfmts_super2xsai_test_deps="super2xsai_filter"
3161 tinterlace_filter_deps="gpl"
3162 tinterlace_merge_test_deps="tinterlace_filter"
3163 tinterlace_pad_test_deps="tinterlace_filter"
3164 uspp_filter_deps="gpl avcodec"
3165 vaguedenoiser_filter_deps="gpl"
3166 vidstabdetect_filter_deps="libvidstab"
3167 vidstabtransform_filter_deps="libvidstab"
3168 zmq_filter_deps="libzmq"
3169 zoompan_filter_deps="swscale"
3170 zscale_filter_deps="libzimg"
3171 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3172
3173 # examples
3174 avio_dir_cmd_deps="avformat avutil"
3175 avio_reading_deps="avformat avcodec avutil"
3176 decode_audio_example_deps="avcodec avutil"
3177 decode_video_example_deps="avcodec avutil"
3178 demuxing_decoding_example_deps="avcodec avformat avutil"
3179 encode_audio_example_deps="avcodec avutil"
3180 encode_video_example_deps="avcodec avutil"
3181 extract_mvs_example_deps="avcodec avformat avutil"
3182 filter_audio_example_deps="avfilter avutil"
3183 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3184 filtering_video_example_deps="avfilter avcodec avformat avutil"
3185 http_multiclient_example_deps="avformat avutil fork"
3186 metadata_example_deps="avformat avutil"
3187 muxing_example_deps="avcodec avformat avutil swscale"
3188 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
3189 remuxing_example_deps="avcodec avformat avutil"
3190 resampling_audio_example_deps="avutil swresample"
3191 scaling_video_example_deps="avutil swscale"
3192 transcode_aac_example_deps="avcodec avformat swresample"
3193 transcoding_example_deps="avfilter avcodec avformat avutil"
3194
3195 # libraries, in linking order
3196 avcodec_deps="avutil"
3197 avdevice_deps="avformat avcodec avutil"
3198 avfilter_deps="avutil"
3199 avformat_deps="avcodec avutil"
3200 avresample_deps="avutil"
3201 postproc_deps="avutil gpl"
3202 swresample_deps="avutil"
3203 swscale_deps="avutil"
3204
3205 # programs
3206 ffmpeg_deps="avcodec avfilter avformat swresample"
3207 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3208                null_filter
3209                trim_filter"
3210 ffplay_deps="avcodec avformat swscale swresample sdl2"
3211 ffplay_libs='$sdl2_libs'
3212 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3213 ffprobe_deps="avcodec avformat"
3214 ffserver_deps="avformat fork sarestart"
3215 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3216
3217 # documentation
3218 podpages_deps="perl"
3219 manpages_deps="perl pod2man"
3220 htmlpages_deps="perl"
3221 htmlpages_deps_any="makeinfo_html texi2html"
3222 txtpages_deps="perl makeinfo"
3223 doc_deps_any="manpages htmlpages podpages txtpages"
3224
3225 # default parameters
3226
3227 logfile="config.log"
3228
3229 # installation paths
3230 prefix_default="/usr/local"
3231 bindir_default='${prefix}/bin'
3232 datadir_default='${prefix}/share/ffmpeg'
3233 docdir_default='${prefix}/share/doc/ffmpeg'
3234 incdir_default='${prefix}/include'
3235 libdir_default='${prefix}/lib'
3236 mandir_default='${prefix}/share/man'
3237
3238 # toolchain
3239 ar_default="ar"
3240 cc_default="gcc"
3241 cxx_default="g++"
3242 host_cc_default="gcc"
3243 cp_f="cp -f"
3244 doxygen_default="doxygen"
3245 install="install"
3246 ln_s_default="ln -s -f"
3247 nm_default="nm -g"
3248 objformat="elf"
3249 pkg_config_default=pkg-config
3250 ranlib_default="ranlib"
3251 strip_default="strip"
3252 version_script='--version-script'
3253 yasmexe_default="yasm"
3254 windres_default="windres"
3255
3256 # OS
3257 target_os_default=$(tolower $(uname -s))
3258 host_os=$target_os_default
3259
3260 # machine
3261 if test "$target_os_default" = aix; then
3262     arch_default=$(uname -p)
3263     strip_default="strip -X32_64"
3264 else
3265     arch_default=$(uname -m)
3266 fi
3267 cpu="generic"
3268 intrinsics="none"
3269
3270 # configurable options
3271 enable $PROGRAM_LIST
3272 enable $DOCUMENT_LIST
3273 enable $EXAMPLE_LIST
3274 enable $(filter_out avresample $LIBRARY_LIST)
3275 enable stripping
3276
3277 enable asm
3278 enable debug
3279 enable doc
3280 enable faan faandct faanidct
3281 enable optimizations
3282 enable runtime_cpudetect
3283 enable safe_bitstream_reader
3284 enable static
3285 enable swscale_alpha
3286 enable valgrind_backtrace
3287
3288 sws_max_filter_size_default=256
3289 set_default sws_max_filter_size
3290
3291 # build settings
3292 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3293 LIBPREF="lib"
3294 LIBSUF=".a"
3295 FULLNAME='$(NAME)$(BUILDSUF)'
3296 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3297 SLIBPREF="lib"
3298 SLIBSUF=".so"
3299 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3300 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3301 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3302 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3303 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3304 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3305 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3306
3307 asflags_filter=echo
3308 cflags_filter=echo
3309 ldflags_filter=echo
3310
3311 AS_C='-c'
3312 AS_O='-o $@'
3313 CC_C='-c'
3314 CC_E='-E -o $@'
3315 CC_O='-o $@'
3316 CXX_C='-c'
3317 CXX_O='-o $@'
3318 OBJCC_C='-c'
3319 OBJCC_E='-E -o $@'
3320 OBJCC_O='-o $@'
3321 LD_O='-o $@'
3322 LD_LIB='-l%'
3323 LD_PATH='-L'
3324 HOSTCC_C='-c'
3325 HOSTCC_E='-E -o $@'
3326 HOSTCC_O='-o $@'
3327 HOSTLD_O='-o $@'
3328
3329 host_libs='-lm'
3330 host_cflags_filter=echo
3331 host_ldflags_filter=echo
3332
3333 target_path='$(CURDIR)'
3334
3335 # since the object filename is not given with the -MM flag, the compiler
3336 # is only able to print the basename, and we must add the path ourselves
3337 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3338 DEPFLAGS='-MM'
3339
3340 # find source path
3341 if test -f configure; then
3342     source_path=.
3343 else
3344     source_path=$(cd $(dirname "$0"); pwd)
3345     case "$source_path" in
3346         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3347     esac
3348     test -e "$source_path/config.h" &&
3349         die "Out of tree builds are impossible with config.h in source dir."
3350 fi
3351
3352 for v in "$@"; do
3353     r=${v#*=}
3354     l=${v%"$r"}
3355     r=$(sh_quote "$r")
3356     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3357 done
3358
3359 find_things(){
3360     thing=$1
3361     pattern=$2
3362     file=$source_path/$3
3363     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3364 }
3365
3366 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3367 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3368 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3369 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3370 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3371 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3372 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3373 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3374 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3375
3376 find_things_extern(){
3377     thing=$1
3378     pattern=$2
3379     file=$source_path/$3
3380     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3381 }
3382
3383 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3384 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3385
3386 ALL_COMPONENTS="
3387     $BSF_LIST
3388     $DECODER_LIST
3389     $DEMUXER_LIST
3390     $ENCODER_LIST
3391     $FILTER_LIST
3392     $HWACCEL_LIST
3393     $INDEV_LIST
3394     $MUXER_LIST
3395     $OUTDEV_LIST
3396     $PARSER_LIST
3397     $PROTOCOL_LIST
3398 "
3399
3400 for n in $COMPONENT_LIST; do
3401     v=$(toupper ${n%s})_LIST
3402     eval enable \$$v
3403     eval ${n}_if_any="\$$v"
3404 done
3405
3406 enable $ARCH_EXT_LIST
3407
3408 die_unknown(){
3409     echo "Unknown option \"$1\"."
3410     echo "See $0 --help for available options."
3411     exit 1
3412 }
3413
3414 print_in_columns() {
3415     cols=$(expr $ncols / 24)
3416     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3417 }
3418
3419 show_list() {
3420     suffix=_$1
3421     shift
3422     echo $* | sed s/$suffix//g | print_in_columns
3423     exit 0
3424 }
3425
3426 rand_list(){
3427     IFS=', '
3428     set -- $*
3429     unset IFS
3430     for thing; do
3431         comp=${thing%:*}
3432         prob=${thing#$comp}
3433         prob=${prob#:}
3434         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3435         echo "prob ${prob:-0.5}"
3436         printf '%s\n' $comp
3437     done
3438 }
3439
3440 do_random(){
3441     action=$1
3442     shift
3443     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3444     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3445 }
3446
3447 for opt do
3448     optval="${opt#*=}"
3449     case "$opt" in
3450         --extra-ldflags=*)
3451             add_ldflags $optval
3452         ;;
3453         --extra-ldexeflags=*)
3454             add_ldexeflags $optval
3455         ;;
3456         --extra-ldlibflags=*)
3457             add_ldlibflags $optval
3458         ;;
3459         --extra-libs=*)
3460             add_extralibs $optval
3461         ;;
3462         --disable-devices)
3463             disable $INDEV_LIST $OUTDEV_LIST
3464         ;;
3465         --enable-debug=*)
3466             debuglevel="$optval"
3467         ;;
3468         --disable-programs)
3469             disable $PROGRAM_LIST
3470         ;;
3471         --disable-everything)
3472             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3473         ;;
3474         --disable-all)
3475             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3476             disable $LIBRARY_LIST $PROGRAM_LIST doc
3477             enable avutil
3478         ;;
3479         --enable-random|--disable-random)
3480             action=${opt%%-random}
3481             do_random ${action#--} $COMPONENT_LIST
3482         ;;
3483         --enable-random=*|--disable-random=*)
3484             action=${opt%%-random=*}
3485             do_random ${action#--} $optval
3486         ;;
3487         --enable-*=*|--disable-*=*)
3488             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3489             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3490             eval list=\$$(toupper $thing)_LIST
3491             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3492             list=$(filter "$name" $list)
3493             [ "$list" = "" ] && warn "Option $opt did not match anything"
3494             $action $list
3495         ;;
3496         --enable-?*|--disable-?*)
3497             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3498             if is_in $option $COMPONENT_LIST; then
3499                 test $action = disable && action=unset
3500                 eval $action \$$(toupper ${option%s})_LIST
3501             elif is_in $option $CMDLINE_SELECT; then
3502                 $action $option
3503             else
3504                 die_unknown $opt
3505             fi
3506         ;;
3507         --list-*)
3508             NAME="${opt#--list-}"
3509             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3510             NAME=${NAME%s}
3511             eval show_list $NAME \$$(toupper $NAME)_LIST
3512         ;;
3513         --help|-h) show_help
3514         ;;
3515         --quiet|-q) quiet=yes
3516         ;;
3517         --fatal-warnings) enable fatal_warnings
3518         ;;
3519         *)
3520             optname="${opt%%=*}"
3521             optname="${optname#--}"
3522             optname=$(echo "$optname" | sed 's/-/_/g')
3523             if is_in $optname $CMDLINE_SET; then
3524                 eval $optname='$optval'
3525             elif is_in $optname $CMDLINE_APPEND; then
3526                 append $optname "$optval"
3527             else
3528                 die_unknown $opt
3529             fi
3530         ;;
3531     esac
3532 done
3533
3534 for e in $env; do
3535     eval "export $e"
3536 done
3537
3538 # Mark specifically enabled, but normally autodetected libraries as requested.
3539 for lib in $AUTODETECT_LIBS; do
3540     enabled $lib && request $lib
3541 done
3542
3543 # Enable platform codecs by default.
3544 enable_weak audiotoolbox
3545
3546 # Enable hwaccels by default.
3547 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3548 enable_weak xlib
3549
3550 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3551
3552 disabled logging && logfile=/dev/null
3553
3554 die_license_disabled() {
3555     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
3556 }
3557
3558 die_license_disabled_gpl() {
3559     enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
3560 }
3561
3562 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3563 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
3564
3565 enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
3566 map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
3567
3568 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3569
3570 # Disable all the library-specific components if the library itself
3571 # is disabled, see AVCODEC_LIST and following _LIST variables.
3572
3573 disable_components(){
3574     disabled ${1} && disable $(
3575         eval components="\$$(toupper ${1})_COMPONENTS"
3576         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3577     )
3578 }
3579
3580 map 'disable_components $v' $LIBRARY_LIST
3581
3582 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3583 set >> $logfile
3584
3585 test -n "$valgrind" && toolchain="valgrind-memcheck"
3586
3587 case "$toolchain" in
3588     *-asan)
3589         cc_default="${toolchain%-asan}"
3590         add_cflags  -fsanitize=address
3591         add_ldflags -fsanitize=address
3592     ;;
3593     *-msan)
3594         cc_default="${toolchain%-msan}"
3595         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3596         add_ldflags -fsanitize=memory
3597     ;;
3598     *-tsan)
3599         cc_default="${toolchain%-tsan}"
3600         add_cflags  -fsanitize=thread -fPIE
3601         add_ldflags -fsanitize=thread -pie
3602         case "$toolchain" in
3603             gcc-tsan)
3604                 add_cflags  -fPIC
3605                 add_ldflags -fPIC
3606                 ;;
3607         esac
3608     ;;
3609     *-usan)
3610         cc_default="${toolchain%-usan}"
3611         add_cflags  -fsanitize=undefined
3612         add_ldflags -fsanitize=undefined
3613     ;;
3614     valgrind-*)
3615         target_exec_default="valgrind"
3616         case "$toolchain" in
3617             valgrind-massif)
3618                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3619                 ;;
3620             valgrind-memcheck)
3621                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3622                 ;;
3623         esac
3624     ;;
3625     msvc)
3626         # Check whether the current MSVC version needs the C99 converter.
3627         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3628         # support enough of C99 to build ffmpeg. Default to the new
3629         # behaviour if the regexp was unable to match anything, since this
3630         # successfully parses the version number of existing supported
3631         # versions that require the converter (MSVC 2010 and 2012).
3632         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3633         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3634             cc_default="cl"
3635         else
3636             cc_default="c99wrap cl"
3637         fi
3638         ld_default="$source_path/compat/windows/mslink"
3639         nm_default="dumpbin -symbols"
3640         ar_default="lib"
3641         case "$arch" in
3642         arm*)
3643             as_default="armasm"
3644             ;;
3645         esac
3646         target_os_default="win32"
3647         # Use a relative path for TMPDIR. This makes sure all the
3648         # ffconf temp files are written with a relative path, avoiding
3649         # issues with msys/win32 path conversion for MSVC parameters
3650         # such as -Fo<file> or -out:<file>.
3651         TMPDIR=.
3652     ;;
3653     icl)
3654         cc_default="icl"
3655         ld_default="xilink"
3656         nm_default="dumpbin -symbols"
3657         ar_default="xilib"
3658         target_os_default="win32"
3659         TMPDIR=.
3660     ;;
3661     gcov)
3662         add_cflags  -fprofile-arcs -ftest-coverage
3663         add_ldflags -fprofile-arcs -ftest-coverage
3664     ;;
3665     llvm-cov)
3666         add_cflags -fprofile-arcs -ftest-coverage
3667         add_ldflags --coverage
3668     ;;
3669     hardened)
3670         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3671         add_cflags   -fno-strict-overflow -fstack-protector-all
3672         add_ldflags  -Wl,-z,relro -Wl,-z,now
3673         add_cflags   -fPIE
3674         add_ldexeflags -fPIE -pie
3675     ;;
3676     ?*)
3677         die "Unknown toolchain $toolchain"
3678     ;;
3679 esac
3680
3681 test -n "$cross_prefix" && enable cross_compile
3682
3683 if enabled cross_compile; then
3684     test -n "$arch" && test -n "$target_os" ||
3685         die "Must specify target arch and OS when cross-compiling"
3686 fi
3687
3688 ar_default="${cross_prefix}${ar_default}"
3689 cc_default="${cross_prefix}${cc_default}"
3690 cxx_default="${cross_prefix}${cxx_default}"
3691 nm_default="${cross_prefix}${nm_default}"
3692 pkg_config_default="${cross_prefix}${pkg_config_default}"
3693 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3694     ranlib_default="${cross_prefix}${ranlib_default} -D"
3695 else
3696     ranlib_default="${cross_prefix}${ranlib_default}"
3697 fi
3698 strip_default="${cross_prefix}${strip_default}"
3699 windres_default="${cross_prefix}${windres_default}"
3700
3701 sysinclude_default="${sysroot}/usr/include"
3702
3703 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3704     target_exec target_os yasmexe
3705 enabled cross_compile || host_cc_default=$cc
3706 set_default host_cc
3707
3708 pkg_config_fail_message=""
3709 if ! $pkg_config --version >/dev/null 2>&1; then
3710     warn "$pkg_config not found, library detection may fail."
3711     pkg_config=false
3712 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3713     pkg_config_fail_message="
3714 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3715 fi
3716
3717 if test $doxygen != $doxygen_default && \
3718   ! $doxygen --version >/dev/null 2>&1; then
3719     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3720 fi
3721
3722 exesuf() {
3723     case $1 in
3724         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3725     esac
3726 }
3727
3728 EXESUF=$(exesuf $target_os)
3729 HOSTEXESUF=$(exesuf $host_os)
3730
3731 # set temporary file name
3732 : ${TMPDIR:=$TEMPDIR}
3733 : ${TMPDIR:=$TMP}
3734 : ${TMPDIR:=/tmp}
3735
3736 if [ -n "$tempprefix" ] ; then
3737     mktemp(){
3738         echo $tempprefix.${HOSTNAME}.${UID}
3739     }
3740 elif ! check_cmd mktemp -u XXXXXX; then
3741     # simple replacement for missing mktemp
3742     # NOT SAFE FOR GENERAL USE
3743     mktemp(){
3744         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3745     }
3746 fi
3747
3748 tmpfile(){
3749     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3750         (set -C; exec > $tmp) 2>/dev/null ||
3751         die "Unable to create temporary file in $TMPDIR."
3752     append TMPFILES $tmp
3753     eval $1=$tmp
3754 }
3755
3756 trap 'rm -f -- $TMPFILES' EXIT
3757
3758 tmpfile TMPASM .asm
3759 tmpfile TMPC   .c
3760 tmpfile TMPCPP .cpp
3761 tmpfile TMPE   $EXESUF
3762 tmpfile TMPH   .h
3763 tmpfile TMPM   .m
3764 tmpfile TMPO   .o
3765 tmpfile TMPS   .S
3766 tmpfile TMPSH  .sh
3767 tmpfile TMPV   .ver
3768
3769 unset -f mktemp
3770
3771 chmod +x $TMPE
3772
3773 # make sure we can execute files in $TMPDIR
3774 cat > $TMPSH 2>> $logfile <<EOF
3775 #! /bin/sh
3776 EOF
3777 chmod +x $TMPSH >> $logfile 2>&1
3778 if ! $TMPSH >> $logfile 2>&1; then
3779     cat <<EOF
3780 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3781 variable to another directory and make sure that it is not mounted noexec.
3782 EOF
3783     die "Sanity test failed."
3784 fi
3785
3786 armasm_flags(){
3787     for flag; do
3788         case $flag in
3789             # Filter out MSVC cl.exe options from cflags that shouldn't
3790             # be passed to gas-preprocessor
3791             -M[TD]*)                                            ;;
3792             *)                  echo $flag                      ;;
3793         esac
3794    done
3795 }
3796
3797 ccc_flags(){
3798     for flag; do
3799         case $flag in
3800             -std=c99)           echo -c99                       ;;
3801             -mcpu=*)            echo -arch ${flag#*=}           ;;
3802             -mieee)             echo -ieee                      ;;
3803             -O*|-fast)          echo $flag                      ;;
3804             -fno-math-errno)    echo -assume nomath_errno       ;;
3805             -g)                 echo -g3                        ;;
3806             -Wall)              echo -msg_enable level2         ;;
3807             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3808             -Wl,*)              echo $flag                      ;;
3809             -f*|-W*)                                            ;;
3810             *)                  echo $flag                      ;;
3811         esac
3812    done
3813 }
3814
3815 cparser_flags(){
3816     for flag; do
3817         case $flag in
3818             -Wno-switch)             echo -Wno-switch-enum ;;
3819             -Wno-format-zero-length) ;;
3820             -Wdisabled-optimization) ;;
3821             -Wno-pointer-sign)       echo -Wno-other ;;
3822             *)                       echo $flag ;;
3823         esac
3824     done
3825 }
3826
3827 msvc_common_flags(){
3828     for flag; do
3829         case $flag in
3830             # In addition to specifying certain flags under the compiler
3831             # specific filters, they must be specified here as well or else the
3832             # generic catch all at the bottom will print the original flag.
3833             -Wall)                ;;
3834             -std=c99)             ;;
3835             # Common flags
3836             -fomit-frame-pointer) ;;
3837             -g)                   echo -Z7 ;;
3838             -fno-math-errno)      ;;
3839             -fno-common)          ;;
3840             -fno-signed-zeros)    ;;
3841             -fPIC)                ;;
3842             -mthumb)              ;;
3843             -march=*)             ;;
3844             -lz)                  echo zlib.lib ;;
3845             -lavicap32)           echo vfw32.lib user32.lib ;;
3846             -lx264)               echo libx264.lib ;;
3847             -l*)                  echo ${flag#-l}.lib ;;
3848             -LARGEADDRESSAWARE)   echo $flag ;;
3849             -L*)                  echo -libpath:${flag#-L} ;;
3850             *)                    echo $flag ;;
3851         esac
3852     done
3853 }
3854
3855 msvc_flags(){
3856     msvc_common_flags "$@"
3857     for flag; do
3858         case $flag in
3859             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3860                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3861                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3862                                        -wd4307 \
3863                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3864         esac
3865     done
3866 }
3867
3868 icl_flags(){
3869     msvc_common_flags "$@"
3870     for flag; do
3871         case $flag in
3872             # Despite what Intel's documentation says -Wall, which is supported
3873             # on Windows, does enable remarks so disable them here.
3874             -Wall)                echo $flag -Qdiag-disable:remark ;;
3875             -std=c99)             echo -Qstd=c99 ;;
3876             -flto)                echo -ipo ;;
3877         esac
3878     done
3879 }
3880
3881 icc_flags(){
3882     for flag; do
3883         case $flag in
3884             -flto)                echo -ipo ;;
3885             *)                    echo $flag ;;
3886         esac
3887     done
3888 }
3889
3890 pgi_flags(){
3891     for flag; do
3892         case $flag in
3893             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3894             -fomit-frame-pointer) echo -Mnoframe ;;
3895             -g)                   echo -gopt ;;
3896             *)                    echo $flag ;;
3897         esac
3898     done
3899 }
3900
3901 suncc_flags(){
3902     for flag; do
3903         case $flag in
3904             -march=*|-mcpu=*)
3905                 case "${flag#*=}" in
3906                     native)                   echo -xtarget=native       ;;
3907                     v9|niagara)               echo -xarch=sparc          ;;
3908                     ultrasparc)               echo -xarch=sparcvis       ;;
3909                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3910                     i586|pentium)             echo -xchip=pentium        ;;
3911                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3912                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3913                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3914                     pentium4*)          echo -xtarget=pentium4           ;;
3915                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3916                     *-sse3)             echo -xarch=sse3                 ;;
3917                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3918                     bonnell)                   echo -xarch=ssse3         ;;
3919                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3920                     westmere)                  echo -xtarget=westmere    ;;
3921                     silvermont)                echo -xarch=sse4_2        ;;
3922                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3923                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3924                                                echo -xarch=avx           ;;
3925                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3926                     btver1)                    echo -xarch=amdsse4a      ;;
3927                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3928                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3929                     k8|opteron|athlon64|athlon-fx)
3930                                                echo -xarch=sse2a         ;;
3931                     athlon*)                   echo -xarch=pentium_proa  ;;
3932                 esac
3933                 ;;
3934             -std=c99)             echo -xc99              ;;
3935             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3936             -fPIC)                echo -KPIC -xcode=pic32 ;;
3937             -W*,*)                echo $flag              ;;
3938             -f*-*|-W*|-mimpure-text)                      ;;
3939             -shared)              echo -G                 ;;
3940             *)                    echo $flag              ;;
3941         esac
3942     done
3943 }
3944
3945 tms470_flags(){
3946     for flag; do
3947         case $flag in
3948             -march=*|-mcpu=*)
3949                 case "${flag#*=}" in
3950                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3951                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3952                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3953                     armv6*|arm11*)          echo -mv=6   ;;
3954                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3955                                             echo -mv=5e  ;;
3956                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3957                 esac
3958                 ;;
3959             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3960             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3961             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3962             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3963             -msoft-float)   echo --float_support=vfplib       ;;
3964             -O[0-3]|-mf=*)  echo $flag                        ;;
3965             -g)             echo -g -mn                       ;;
3966             -pds=*)         echo $flag                        ;;
3967             -D*|-I*)        echo $flag                        ;;
3968             --gcc|--abi=*)  echo $flag                        ;;
3969             -me)            echo $flag                        ;;
3970         esac
3971     done
3972 }
3973
3974 probe_cc(){
3975     pfx=$1
3976     _cc=$2
3977     first=$3
3978
3979     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3980     unset _ld_o _ldflags _ld_lib _ld_path
3981     unset _depflags _DEPCMD _DEPFLAGS
3982     _flags_filter=echo
3983
3984     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3985         true # no-op to avoid reading stdin in following checks
3986     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3987         _type=llvm_gcc
3988         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3989         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3990         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3991         _cflags_speed='-O3'
3992         _cflags_size='-Os'
3993     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3994         _type=gcc
3995         gcc_version=$($_cc --version | head -n1)
3996         gcc_basever=$($_cc -dumpversion)
3997         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3998         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3999         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
4000         case $gcc_basever in
4001             2) ;;
4002             2.*) ;;
4003             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
4004         esac
4005         if [ "$first" = true ]; then
4006             case $gcc_basever in
4007                 4.2*)
4008                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4009             esac
4010         fi
4011         _cflags_speed='-O3'
4012         _cflags_size='-Os'
4013     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4014         _type=icc
4015         _ident=$($_cc --version | head -n1)
4016         _depflags='-MMD'
4017         _cflags_speed='-O3'
4018         _cflags_size='-Os'
4019         _cflags_noopt='-O1'
4020         _flags_filter=icc_flags
4021     elif $_cc -v 2>&1 | grep -q xlc; then
4022         _type=xlc
4023         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4024         _cflags_speed='-O5'
4025         _cflags_size='-O5 -qcompact'
4026     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4027         _type=ccc
4028         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4029         _DEPFLAGS='-M'
4030         _cflags_speed='-fast'
4031         _cflags_size='-O1'
4032         _flags_filter=ccc_flags
4033     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4034         test -d "$sysroot" || die "No valid sysroot specified."
4035         _type=armcc
4036         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4037         armcc_conf="$PWD/armcc.conf"
4038         $_cc --arm_linux_configure                 \
4039              --arm_linux_config_file="$armcc_conf" \
4040              --configure_sysroot="$sysroot"        \
4041              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4042              die "Error creating armcc configuration file."
4043         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4044         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4045         as_default="${cross_prefix}gcc"
4046         _depflags='-MMD'
4047         _cflags_speed='-O3'
4048         _cflags_size='-Os'
4049     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4050         _type=tms470
4051         _ident=$($_cc -version | head -n1 | tr -s ' ')
4052         _flags='--gcc --abi=eabi -me'
4053         _cc_e='-ppl -fe=$@'
4054         _cc_o='-fe=$@'
4055         _depflags='-ppa -ppd=$(@:.o=.d)'
4056         _cflags_speed='-O3 -mf=5'
4057         _cflags_size='-O3 -mf=2'
4058         _flags_filter=tms470_flags
4059     elif $_cc -v 2>&1 | grep -q clang; then
4060         _type=clang
4061         _ident=$($_cc --version 2>/dev/null | head -n1)
4062         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4063         _cflags_speed='-O3'
4064         _cflags_size='-Oz'
4065     elif $_cc -V 2>&1 | grep -q Sun; then
4066         _type=suncc
4067         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4068         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4069         _DEPFLAGS='-xM1 -xc99'
4070         _ldflags='-std=c99'
4071         _cflags_speed='-O5'
4072         _cflags_size='-O5 -xspace'
4073         _flags_filter=suncc_flags
4074     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4075         _type=pathscale
4076         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4077         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4078         _cflags_speed='-O2'
4079         _cflags_size='-Os'
4080         _flags_filter='filter_out -Wdisabled-optimization'
4081     elif $_cc -v 2>&1 | grep -q Open64; then
4082         _type=open64
4083         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4084         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4085         _cflags_speed='-O2'
4086         _cflags_size='-Os'
4087         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
4088     elif $_cc -V 2>&1 | grep -q Portland; then
4089         _type=pgi
4090         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4091         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4092         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4093         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4094         _cflags_noopt="-O"
4095         _flags_filter=pgi_flags
4096     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4097         _type=armasm
4098         _ident=$($_cc | head -n1)
4099         # 4509: "This form of conditional instruction is deprecated"
4100         _flags="-nologo -ignore 4509"
4101         _flags_filter=armasm_flags
4102     elif $_cc 2>&1 | grep -q Intel; then
4103         _type=icl
4104         _ident=$($_cc 2>&1 | head -n1)
4105         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4106         # Not only is O3 broken on 13.x+ but it is slower on all previous
4107         # versions (tested) as well.
4108         _cflags_speed="-O2"
4109         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4110         if $_cc 2>&1 | grep -q Linker; then
4111             _ld_o='-out:$@'
4112         else
4113             _ld_o='-Fe$@'
4114         fi
4115         _cc_o='-Fo$@'
4116         _cc_e='-P'
4117         _flags_filter=icl_flags
4118         _ld_lib='lib%.a'
4119         _ld_path='-libpath:'
4120         # -Qdiag-error to make icl error when seeing certain unknown arguments
4121         _flags='-nologo -Qdiag-error:4044,10157'
4122         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4123         # with MSVC which enables it by default.
4124         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4125         disable stripping
4126     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4127         # lld can emulate multiple different linkers; in ms link.exe mode,
4128         # the -? parameter gives the help output which contains an identifyable
4129         # string, while it gives an error in other modes.
4130         _type=lld-link
4131         # The link.exe mode doesn't have a switch for getting the version,
4132         # but we can force it back to gnu mode and get the version from there.
4133         _ident=$($_cc -flavor gnu --version 2>/dev/null)
4134         _ld_o='-out:$@'
4135         _flags_filter=msvc_flags
4136         _ld_lib='lib%.a'
4137         _ld_path='-libpath:'
4138     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4139         _type=msvc
4140         _ident=$($_cc 2>&1 | head -n1)
4141         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4142         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4143         _cflags_speed="-O2"
4144         _cflags_size="-O1"
4145         if $_cc -nologo- 2>&1 | grep -q Linker; then
4146             _ld_o='-out:$@'
4147         else
4148             _ld_o='-Fe$@'
4149         fi
4150         _cc_o='-Fo$@'
4151         _cc_e='-P -Fi$@'
4152         _flags_filter=msvc_flags
4153         _ld_lib='lib%.a'
4154         _ld_path='-libpath:'
4155         _flags='-nologo'
4156         disable stripping
4157     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4158         _type=cparser
4159         _ident=$($_cc --version | head -n1)
4160         _depflags='-MMD'
4161         _cflags_speed='-O4'
4162         _cflags_size='-O2'
4163         _flags_filter=cparser_flags
4164     fi
4165
4166     eval ${pfx}_type=\$_type
4167     eval ${pfx}_ident=\$_ident
4168 }
4169
4170 set_ccvars(){
4171     eval ${1}_C=\${_cc_c-\${${1}_C}}
4172     eval ${1}_E=\${_cc_e-\${${1}_E}}
4173     eval ${1}_O=\${_cc_o-\${${1}_O}}
4174
4175     if [ -n "$_depflags" ]; then
4176         eval ${1}_DEPFLAGS=\$_depflags
4177     else
4178         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4179         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4180         eval DEP${1}FLAGS=\$_flags
4181     fi
4182 }
4183
4184 probe_cc cc "$cc" "true"
4185 cflags_filter=$_flags_filter
4186 cflags_speed=$_cflags_speed
4187 cflags_size=$_cflags_size
4188 cflags_noopt=$_cflags_noopt
4189 add_cflags $_flags $_cflags
4190 cc_ldflags=$_ldflags
4191 set_ccvars CC
4192
4193 probe_cc hostcc "$host_cc"
4194 host_cflags_filter=$_flags_filter
4195 add_host_cflags  $_flags $_cflags
4196 set_ccvars HOSTCC
4197
4198 test -n "$cc_type" && enable $cc_type ||
4199     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4200
4201 : ${as_default:=$cc}
4202 : ${objcc_default:=$cc}
4203 : ${dep_cc_default:=$cc}
4204 : ${ld_default:=$cc}
4205 : ${host_ld_default:=$host_cc}
4206 set_default ar as objcc dep_cc ld ln_s host_ld windres
4207
4208 probe_cc as "$as"
4209 asflags_filter=$_flags_filter
4210 add_asflags $_flags $_cflags
4211 set_ccvars AS
4212
4213 probe_cc objcc "$objcc"
4214 objcflags_filter=$_flags_filter
4215 add_objcflags $_flags $_cflags
4216 set_ccvars OBJC
4217
4218 probe_cc ld "$ld"
4219 ldflags_filter=$_flags_filter
4220 add_ldflags $_flags $_ldflags
4221 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4222 LD_O=${_ld_o-$LD_O}
4223 LD_LIB=${_ld_lib-$LD_LIB}
4224 LD_PATH=${_ld_path-$LD_PATH}
4225
4226 probe_cc hostld "$host_ld"
4227 host_ldflags_filter=$_flags_filter
4228 add_host_ldflags $_flags $_ldflags
4229 HOSTLD_O=${_ld_o-$HOSTLD_O}
4230
4231 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4232     probe_cc depcc "$dep_cc"
4233     CCDEP=${_DEPCMD:-$DEPCMD}
4234     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4235     DEPCCFLAGS=$_flags
4236 fi
4237
4238 if $ar 2>&1 | grep -q Microsoft; then
4239     arflags="-nologo"
4240     ar_o='-out:$@'
4241 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4242     arflags="rq"
4243     ar_o='$@'
4244 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4245     arflags='-Xany -r -c'
4246     ar_o='$@'
4247 elif $ar 2>&1 | grep -q "\[D\] "; then
4248     arflags="rcD"
4249     ar_o='$@'
4250 else
4251     arflags="rc"
4252     ar_o='$@'
4253 fi
4254
4255 add_cflags $extra_cflags
4256 add_cxxflags $extra_cxxflags
4257 add_objcflags $extra_objcflags
4258 add_asflags $extra_cflags
4259
4260 if test -n "$sysroot"; then
4261     case "$cc_type" in
4262         gcc|llvm_gcc|clang)
4263             add_cppflags --sysroot="$sysroot"
4264             add_ldflags --sysroot="$sysroot"
4265 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4266             add_cppflags -isysroot "$sysroot"
4267             add_ldflags -isysroot "$sysroot"
4268         ;;
4269         tms470)
4270             add_cppflags -I"$sysinclude"
4271             add_ldflags  --sysroot="$sysroot"
4272         ;;
4273     esac
4274 fi
4275
4276 if test "$cpu" = host; then
4277     enabled cross_compile &&
4278         die "--cpu=host makes no sense when cross-compiling."
4279
4280     case "$cc_type" in
4281         gcc|llvm_gcc)
4282             check_native(){
4283                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4284                 sed -n "/cc1.*$1=/{
4285                             s/.*$1=\\([^ ]*\\).*/\\1/
4286                             p
4287                             q
4288                         }" $TMPE
4289             }
4290             cpu=$(check_native -march || check_native -mcpu)
4291         ;;
4292         clang)
4293             check_native(){
4294                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4295                 sed -n "/cc1.*-target-cpu /{
4296                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4297                             p
4298                             q
4299                         }" $TMPE
4300             }
4301             cpu=$(check_native -march)
4302         ;;
4303     esac
4304
4305     test "${cpu:-host}" = host &&
4306         die "--cpu=host not supported with compiler $cc"
4307 fi
4308
4309 # Deal with common $arch aliases
4310 case "$arch" in
4311     aarch64|arm64)
4312         arch="aarch64"
4313     ;;
4314     arm*|iPad*|iPhone*)
4315         arch="arm"
4316     ;;
4317     mips*|IP*)
4318         case "$arch" in
4319         *el)
4320             add_cppflags -EL
4321             add_ldflags -EL
4322         ;;
4323         *eb)
4324             add_cppflags -EB
4325             add_ldflags -EB
4326         ;;
4327         esac
4328         arch="mips"
4329     ;;
4330     parisc*|hppa*)
4331         arch="parisc"
4332     ;;
4333     "Power Macintosh"|ppc*|powerpc*)
4334         arch="ppc"
4335     ;;
4336     s390|s390x)
4337         arch="s390"
4338     ;;
4339     sh4|sh)
4340         arch="sh4"
4341     ;;
4342     sun4*|sparc*)
4343         arch="sparc"
4344     ;;
4345     tilegx|tile-gx)
4346         arch="tilegx"
4347     ;;
4348     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4349         arch="x86"
4350     ;;
4351 esac
4352
4353 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4354 enable $arch
4355
4356 # Add processor-specific flags
4357 if enabled aarch64; then
4358
4359     case $cpu in
4360         armv*)
4361             cpuflags="-march=$cpu"
4362         ;;
4363         *)
4364             cpuflags="-mcpu=$cpu"
4365         ;;
4366     esac
4367
4368 elif enabled alpha; then
4369
4370     cpuflags="-mcpu=$cpu"
4371
4372 elif enabled arm; then
4373
4374     check_arm_arch() {
4375         check_cpp_condition stddef.h \
4376             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4377             $cpuflags
4378     }
4379
4380     probe_arm_arch() {
4381         if   check_arm_arch 4;        then echo armv4
4382         elif check_arm_arch 4T;       then echo armv4t
4383         elif check_arm_arch 5;        then echo armv5
4384         elif check_arm_arch 5E;       then echo armv5e
4385         elif check_arm_arch 5T;       then echo armv5t
4386         elif check_arm_arch 5TE;      then echo armv5te
4387         elif check_arm_arch 5TEJ;     then echo armv5te
4388         elif check_arm_arch 6;        then echo armv6
4389         elif check_arm_arch 6J;       then echo armv6j
4390         elif check_arm_arch 6K;       then echo armv6k
4391         elif check_arm_arch 6Z;       then echo armv6z
4392         elif check_arm_arch 6ZK;      then echo armv6zk
4393         elif check_arm_arch 6T2;      then echo armv6t2
4394         elif check_arm_arch 7;        then echo armv7
4395         elif check_arm_arch 7A  7_A;  then echo armv7-a
4396         elif check_arm_arch 7S;       then echo armv7-a
4397         elif check_arm_arch 7R  7_R;  then echo armv7-r
4398         elif check_arm_arch 7M  7_M;  then echo armv7-m
4399         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4400         elif check_arm_arch 8A  8_A;  then echo armv8-a
4401         fi
4402     }
4403
4404     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4405
4406     case $cpu in
4407         armv*)
4408             cpuflags="-march=$cpu"
4409             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4410         ;;
4411         *)
4412             cpuflags="-mcpu=$cpu"
4413             case $cpu in
4414                 cortex-a*)                               subarch=armv7a  ;;
4415                 cortex-r*)                               subarch=armv7r  ;;
4416                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4417                 arm11*)                                  subarch=armv6   ;;
4418                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4419                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4420                 *)                             subarch=$(probe_arm_arch) ;;
4421             esac
4422         ;;
4423     esac
4424
4425     case "$subarch" in
4426         armv5t*)    enable fast_clz                ;;
4427         armv[6-8]*)
4428             enable fast_clz
4429             disabled fast_unaligned || enable fast_unaligned
4430             ;;
4431     esac
4432
4433 elif enabled avr32; then
4434
4435     case $cpu in
4436         ap7[02]0[0-2])
4437             subarch="avr32_ap"
4438             cpuflags="-mpart=$cpu"
4439         ;;
4440         ap)
4441             subarch="avr32_ap"
4442             cpuflags="-march=$cpu"
4443         ;;
4444         uc3[ab]*)
4445             subarch="avr32_uc"
4446             cpuflags="-mcpu=$cpu"
4447         ;;
4448         uc)
4449             subarch="avr32_uc"
4450             cpuflags="-march=$cpu"
4451         ;;
4452     esac
4453
4454 elif enabled bfin; then
4455
4456     cpuflags="-mcpu=$cpu"
4457
4458 elif enabled mips; then
4459
4460     cpuflags="-march=$cpu"
4461
4462     if [ "$cpu" != "generic" ]; then
4463         disable mips32r2
4464         disable mips32r5
4465         disable mips64r2
4466         disable mips32r6
4467         disable mips64r6
4468         disable loongson2
4469         disable loongson3
4470
4471         case $cpu in
4472             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4473                 enable mips32r2
4474                 disable msa
4475             ;;
4476             p5600|i6400|p6600)
4477                 disable mipsdsp
4478                 disable mipsdspr2
4479             ;;
4480             loongson*)
4481                 enable loongson2
4482                 enable loongson3
4483                 enable local_aligned_8 local_aligned_16 local_aligned_32
4484                 enable simd_align_16
4485                 enable fast_64bit
4486                 enable fast_clz
4487                 enable fast_cmov
4488                 enable fast_unaligned
4489                 disable aligned_stack
4490                 disable mipsfpu
4491                 disable mipsdsp
4492                 disable mipsdspr2
4493                 case $cpu in
4494                     loongson3*)
4495                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4496                     ;;
4497                     loongson2e)
4498                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4499                     ;;
4500                     loongson2f)
4501                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4502                     ;;
4503                 esac
4504             ;;
4505             *)
4506                 # Unknown CPU. Disable everything.
4507                 warn "unknown CPU. Disabling all MIPS optimizations."
4508                 disable mipsfpu
4509                 disable mipsdsp
4510                 disable mipsdspr2
4511                 disable msa
4512                 disable mmi
4513             ;;
4514         esac
4515
4516         case $cpu in
4517             24kc)
4518                 disable mipsfpu
4519                 disable mipsdsp
4520                 disable mipsdspr2
4521             ;;
4522             24kf*)
4523                 disable mipsdsp
4524                 disable mipsdspr2
4525             ;;
4526             24kec|34kc|1004kc)
4527                 disable mipsfpu
4528                 disable mipsdspr2
4529             ;;
4530             24kef*|34kf*|1004kf*)
4531                 disable mipsdspr2
4532             ;;
4533             74kc)
4534                 disable mipsfpu
4535             ;;
4536             p5600)
4537                 enable mips32r5
4538                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4539             ;;
4540             i6400)
4541                 enable mips64r6
4542                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4543             ;;
4544             p6600)
4545                 enable mips64r6
4546                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4547             ;;
4548         esac
4549     else
4550         # We do not disable anything. Is up to the user to disable the unwanted features.
4551         warn 'generic cpu selected'
4552     fi
4553
4554 elif enabled ppc; then
4555
4556     disable ldbrx
4557
4558     case $(tolower $cpu) in
4559         601|ppc601|powerpc601)
4560             cpuflags="-mcpu=601"
4561             disable altivec
4562         ;;
4563         603*|ppc603*|powerpc603*)
4564             cpuflags="-mcpu=603"
4565             disable altivec
4566         ;;
4567         604*|ppc604*|powerpc604*)
4568             cpuflags="-mcpu=604"
4569             disable altivec
4570         ;;
4571         g3|75*|ppc75*|powerpc75*)
4572             cpuflags="-mcpu=750"
4573             disable altivec
4574         ;;
4575         g4|745*|ppc745*|powerpc745*)
4576             cpuflags="-mcpu=7450"
4577             disable vsx
4578         ;;
4579         74*|ppc74*|powerpc74*)
4580             cpuflags="-mcpu=7400"
4581             disable vsx
4582         ;;
4583         g5|970|ppc970|powerpc970)
4584             cpuflags="-mcpu=970"
4585             disable vsx
4586         ;;
4587         power[3-6]*)
4588             cpuflags="-mcpu=$cpu"
4589             disable vsx
4590         ;;
4591         power[7-8]*)
4592             cpuflags="-mcpu=$cpu"
4593         ;;
4594         cell)
4595             cpuflags="-mcpu=cell"
4596             enable ldbrx
4597             disable vsx
4598         ;;
4599         e500mc)
4600             cpuflags="-mcpu=e500mc"
4601             disable altivec
4602         ;;
4603         e500v2)
4604             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4605             disable altivec
4606             disable dcbzl
4607         ;;
4608         e500)
4609             cpuflags="-mcpu=8540 -mhard-float"
4610             disable altivec
4611             disable dcbzl
4612         ;;
4613     esac
4614
4615 elif enabled sparc; then
4616
4617     case $cpu in
4618         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4619             cpuflags="-mcpu=$cpu"
4620         ;;
4621         ultrasparc*|niagara[234])
4622             cpuflags="-mcpu=$cpu"
4623         ;;
4624     esac
4625
4626 elif enabled x86; then
4627
4628     case $cpu in
4629         i[345]86|pentium)
4630             cpuflags="-march=$cpu"
4631             disable i686
4632             disable mmx
4633         ;;
4634         # targets that do NOT support nopl and conditional mov (cmov)
4635         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4636             cpuflags="-march=$cpu"
4637             disable i686
4638         ;;
4639         # targets that do support nopl and conditional mov (cmov)
4640         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4641         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4642         |amdfam10|barcelona|b[dt]ver*|znver*)
4643             cpuflags="-march=$cpu"
4644             enable i686
4645             enable fast_cmov
4646         ;;
4647         # targets that do support conditional mov but on which it's slow
4648         pentium4|pentium4m|prescott|nocona)
4649             cpuflags="-march=$cpu"
4650             enable i686
4651             disable fast_cmov
4652         ;;
4653     esac
4654
4655 fi
4656
4657 if [ "$cpu" != generic ]; then
4658     add_cflags  $cpuflags
4659     add_asflags $cpuflags
4660     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4661 fi
4662
4663 # compiler sanity check
4664 check_exec <<EOF
4665 int main(void){ return 0; }
4666 EOF
4667 if test "$?" != 0; then
4668     echo "$cc is unable to create an executable file."
4669     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4670         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4671         echo "Only do this if you know what cross compiling means."
4672     fi
4673     die "C compiler test failed."
4674 fi
4675
4676 add_cppflags -D_ISOC99_SOURCE
4677 add_cxxflags -D__STDC_CONSTANT_MACROS
4678 check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
4679
4680 # some compilers silently accept -std=c11, so we also need to check that the
4681 # version macro is defined properly
4682 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4683     add_cflags -std=c11
4684 else
4685     check_cflags -std=c99
4686 fi
4687
4688 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4689 #include <stdlib.h>
4690 EOF
4691 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4692 #include <stdlib.h>
4693 EOF
4694
4695 add_host_cppflags -D_ISOC99_SOURCE
4696 check_host_cflags -std=c99
4697 check_host_cflags -Wall
4698 check_host_cflags -O3
4699
4700 check_64bit(){
4701     arch32=$1
4702     arch64=$2
4703     expr=$3
4704     check_code cc "" "int test[2*($expr) - 1]" &&
4705         subarch=$arch64 || subarch=$arch32
4706 }
4707
4708 case "$arch" in
4709     aarch64|alpha|ia64)
4710         spic=$shared
4711     ;;
4712     mips)
4713         check_64bit mips mips64 '_MIPS_SIM > 1'
4714         spic=$shared
4715     ;;
4716     parisc)
4717         check_64bit parisc parisc64 'sizeof(void *) > 4'
4718         spic=$shared
4719     ;;
4720     ppc)
4721         check_64bit ppc ppc64 'sizeof(void *) > 4'
4722         spic=$shared
4723     ;;
4724     s390)
4725         check_64bit s390 s390x 'sizeof(void *) > 4'
4726         spic=$shared
4727     ;;
4728     sparc)
4729         check_64bit sparc sparc64 'sizeof(void *) > 4'
4730         spic=$shared
4731     ;;
4732     x86)
4733         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4734         # Treat x32 as x64 for now. Note it also needs spic=$shared
4735         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4736             subarch=x86_64
4737         if test "$subarch" = "x86_64"; then
4738             spic=$shared
4739         fi
4740     ;;
4741     ppc)
4742         check_cc <<EOF && subarch="ppc64"
4743         int test[(int)sizeof(char*) - 7];
4744 EOF
4745     ;;
4746 esac
4747
4748 enable $subarch
4749 enabled spic && enable_weak pic
4750
4751 # OS specific
4752 case $target_os in
4753     aix)
4754         SHFLAGS=-shared
4755         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4756         enabled shared && add_ldflags -Wl,-brtl
4757         ;;
4758     android)
4759         disable symver
4760         enable section_data_rel_ro
4761         SLIB_INSTALL_NAME='$(SLIBNAME)'
4762         SLIB_INSTALL_LINKS=
4763         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4764         ;;
4765     haiku)
4766         prefix_default="/boot/common"
4767         network_extralibs="-lnetwork"
4768         host_libs=
4769         ;;
4770     sunos)
4771         SHFLAGS='-shared -Wl,-h,$$(@F)'
4772         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4773         network_extralibs="-lsocket -lnsl"
4774         add_cppflags -D__EXTENSIONS__
4775         # When using suncc to build, the Solaris linker will mark
4776         # an executable with each instruction set encountered by
4777         # the Solaris assembler.  As our libraries contain their own
4778         # guards for processor-specific code, instead suppress
4779         # generation of the HWCAPS ELF section on Solaris x86 only.
4780         enabled_all suncc x86 &&
4781             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4782             add_ldflags -Wl,-M,mapfile
4783         nm_default='nm -P -g'
4784         version_script='-M'
4785         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4786         ;;
4787     netbsd)
4788         disable symver
4789         oss_indev_extralibs="-lossaudio"
4790         oss_outdev_extralibs="-lossaudio"
4791         enabled gcc || check_ldflags -Wl,-zmuldefs
4792         ;;
4793     openbsd|bitrig)
4794         disable symver
4795         SHFLAGS='-shared'
4796         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4797         SLIB_INSTALL_LINKS=
4798         oss_indev_extralibs="-lossaudio"
4799         oss_outdev_extralibs="-lossaudio"
4800         ;;
4801     dragonfly)
4802         disable symver
4803         ;;
4804     freebsd)
4805         ;;
4806     bsd/os)
4807         add_extralibs -lpoll -lgnugetopt
4808         strip="strip -d"
4809         ;;
4810     darwin)
4811         enabled ppc && add_asflags -force_cpusubtype_ALL
4812         install_name_dir_default='$(SHLIBDIR)'
4813         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4814         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4815         strip="${strip} -x"
4816         add_ldflags -Wl,-dynamic,-search_paths_first
4817         SLIBSUF=".dylib"
4818         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4819         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4820         objformat="macho"
4821         enabled x86_64 && objformat="macho64"
4822         enabled_any pic shared x86_64 ||
4823             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4824         check_header dispatch/dispatch.h &&
4825             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4826         version_script='-exported_symbols_list'
4827         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4828         ;;
4829     msys*)
4830         die "Native MSYS builds are discouraged, please use the MINGW environment."
4831         ;;
4832     mingw32*|mingw64*)
4833         if test $target_os = "mingw32ce"; then
4834             disable network
4835         else
4836             target_os=mingw32
4837         fi
4838         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4839         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4840         LIBTARGET=i386
4841         if enabled x86_64; then
4842             LIBTARGET="i386:x86-64"
4843         elif enabled arm; then
4844             LIBTARGET=arm-wince
4845         fi
4846         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4847         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4848         shlibdir_default="$bindir_default"
4849         SLIBPREF=""
4850         SLIBSUF=".dll"
4851         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4852         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4853         dlltool="${cross_prefix}dlltool"
4854         if check_cmd lib.exe -list; then
4855             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4856             if enabled x86_64; then
4857                 LIBTARGET=x64
4858             fi
4859         elif check_cmd $dlltool --version; then
4860             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4861         fi
4862         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4863         SLIB_INSTALL_LINKS=
4864         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4865         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4866         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4867         objformat="win32"
4868         ranlib=:
4869         enable dos_paths
4870         check_ldflags -Wl,--nxcompat,--dynamicbase
4871         # Lets work around some stupidity in binutils.
4872         # ld will strip relocations from executables even though we need them
4873         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4874         # however ld then forgets what the entry point should be (oops) so we
4875         # have to manually (re)set it.
4876         if enabled x86_32; then
4877             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4878         elif enabled x86_64; then
4879             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4880             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4881             # Set image base >4GB for extra entropy with HEASLR
4882             add_ldexeflags -Wl,--image-base,0x140000000
4883             append SHFLAGS -Wl,--image-base,0x180000000
4884         fi
4885         ;;
4886     win32|win64)
4887         disable symver
4888         if enabled shared; then
4889             # Link to the import library instead of the normal static library
4890             # for shared libs.
4891             LD_LIB='%.lib'
4892             # Cannot build both shared and static libs with MSVC or icl.
4893             disable static
4894         fi
4895         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4896         shlibdir_default="$bindir_default