Merge commit '6755eb5b212384e0599f7f2c5de42df49fff57de'
[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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [LIBDIR]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --pkgconfigdir=DIR       install pkg-config files in DIR [LIBDIR/pkgconfig]
91   --enable-rpath           use rpath to allow installing libraries in paths
92                            not part of the dynamic linker search path
93                            use rpath when linking programs [USE WITH CARE]
94   --install-name-dir=DIR   Darwin directory name for installed targets
95
96 Licensing options:
97   --enable-gpl             allow use of GPL code, the resulting libs
98                            and binaries will be under GPL [no]
99   --enable-version3        upgrade (L)GPL to version 3 [no]
100   --enable-nonfree         allow use of nonfree code, the resulting libs
101                            and binaries will be unredistributable [no]
102
103 Configuration options:
104   --disable-static         do not build static libraries [no]
105   --enable-shared          build shared libraries [no]
106   --enable-small           optimize for size instead of speed
107   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
108   --enable-gray            enable full grayscale support (slower color)
109   --disable-swscale-alpha  disable alpha channel support in swscale
110   --disable-all            disable building components, libraries and programs
111   --enable-raise-major     increase major version numbers in sonames [no]
112
113 Program options:
114   --disable-programs       do not build command line programs
115   --disable-ffmpeg         disable ffmpeg build
116   --disable-ffplay         disable ffplay build
117   --disable-ffprobe        disable ffprobe build
118   --disable-ffserver       disable ffserver build
119
120 Documentation options:
121   --disable-doc            do not build documentation
122   --disable-htmlpages      do not build HTML documentation pages
123   --disable-manpages       do not build man documentation pages
124   --disable-podpages       do not build POD documentation pages
125   --disable-txtpages       do not build text documentation pages
126
127 Component options:
128   --disable-avdevice       disable libavdevice build
129   --disable-avcodec        disable libavcodec build
130   --disable-avformat       disable libavformat build
131   --disable-swresample     disable libswresample build
132   --disable-swscale        disable libswscale build
133   --disable-postproc       disable libpostproc build
134   --disable-avfilter       disable libavfilter build
135   --enable-avresample      enable libavresample build [no]
136   --disable-pthreads       disable pthreads [autodetect]
137   --disable-w32threads     disable Win32 threads [autodetect]
138   --disable-os2threads     disable OS/2 threads [autodetect]
139   --disable-network        disable network support [no]
140   --disable-dct            disable DCT code
141   --disable-dwt            disable DWT code
142   --disable-error-resilience disable error resilience code
143   --disable-lsp            disable LSP code
144   --disable-lzo            disable LZO decoder code
145   --disable-mdct           disable MDCT code
146   --disable-rdft           disable RDFT code
147   --disable-fft            disable FFT code
148   --disable-faan           disable floating point AAN (I)DCT code
149   --disable-pixelutils     disable pixel utils in libavutil
150
151 Individual component options:
152   --disable-everything     disable all components listed below
153   --disable-encoder=NAME   disable encoder NAME
154   --enable-encoder=NAME    enable encoder NAME
155   --disable-encoders       disable all encoders
156   --disable-decoder=NAME   disable decoder NAME
157   --enable-decoder=NAME    enable decoder NAME
158   --disable-decoders       disable all decoders
159   --disable-hwaccel=NAME   disable hwaccel NAME
160   --enable-hwaccel=NAME    enable hwaccel NAME
161   --disable-hwaccels       disable all hwaccels
162   --disable-muxer=NAME     disable muxer NAME
163   --enable-muxer=NAME      enable muxer NAME
164   --disable-muxers         disable all muxers
165   --disable-demuxer=NAME   disable demuxer NAME
166   --enable-demuxer=NAME    enable demuxer NAME
167   --disable-demuxers       disable all demuxers
168   --enable-parser=NAME     enable parser NAME
169   --disable-parser=NAME    disable parser NAME
170   --disable-parsers        disable all parsers
171   --enable-bsf=NAME        enable bitstream filter NAME
172   --disable-bsf=NAME       disable bitstream filter NAME
173   --disable-bsfs           disable all bitstream filters
174   --enable-protocol=NAME   enable protocol NAME
175   --disable-protocol=NAME  disable protocol NAME
176   --disable-protocols      disable all protocols
177   --enable-indev=NAME      enable input device NAME
178   --disable-indev=NAME     disable input device NAME
179   --disable-indevs         disable input devices
180   --enable-outdev=NAME     enable output device NAME
181   --disable-outdev=NAME    disable output device NAME
182   --disable-outdevs        disable output devices
183   --disable-devices        disable all devices
184   --enable-filter=NAME     enable filter NAME
185   --disable-filter=NAME    disable filter NAME
186   --disable-filters        disable all filters
187
188 External library support:
189
190   Using any of the following switches will allow FFmpeg to link to the
191   corresponding external library. All the components depending on that library
192   will become enabled, if all their other dependencies are met and they are not
193   explicitly disabled. E.g. --enable-libwavpack will enable linking to
194   libwavpack and allow the libwavpack encoder to be built, unless it is
195   specifically disabled with --disable-encoder=libwavpack.
196
197   Note that only the system libraries are auto-detected. All the other external
198   libraries must be explicitly enabled.
199
200   Also note that the following help text describes the purpose of the libraries
201   themselves, not all their features will necessarily be usable by FFmpeg.
202
203   --enable-avisynth        enable reading of AviSynth script files [no]
204   --disable-bzlib          disable bzlib [autodetect]
205   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
206   --enable-frei0r          enable frei0r video filtering [no]
207   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
208                            if openssl, librtmp or gmp is not used [no]
209   --enable-gmp             enable gmp, needed for rtmp(t)e support
210                            if openssl or librtmp is not used [no]
211   --enable-gnutls          enable gnutls, needed for https support
212                            if openssl is not used [no]
213   --disable-iconv          disable iconv [autodetect]
214   --enable-jni             enable JNI support [no]
215   --enable-ladspa          enable LADSPA audio filtering [no]
216   --enable-libass          enable libass subtitles rendering,
217                            needed for subtitles and ass filter [no]
218   --enable-libbluray       enable BluRay reading using libbluray [no]
219   --enable-libbs2b         enable bs2b DSP library [no]
220   --enable-libcaca         enable textual display using libcaca [no]
221   --enable-libcelt         enable CELT decoding via libcelt [no]
222   --enable-libcdio         enable audio CD grabbing with libcdio [no]
223   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
224                            and libraw1394 [no]
225   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
226   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
227   --enable-libfontconfig   enable libfontconfig, useful for drawtext filter [no]
228   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
229   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
230   --enable-libgme          enable Game Music Emu via libgme [no]
231   --enable-libgsm          enable GSM de/encoding via libgsm [no]
232   --enable-libiec61883     enable iec61883 via libiec61883 [no]
233   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
234   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
235   --enable-libmodplug      enable ModPlug via libmodplug [no]
236   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
237   --enable-libnut          enable NUT (de)muxing via libnut,
238                            native (de)muxer exists [no]
239   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
240   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
241   --enable-libopencv       enable video filtering via libopencv [no]
242   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
243   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
244   --enable-libopenmpt      enable decoding tracked files via libopenmpt [no]
245   --enable-libopus         enable Opus de/encoding via libopus [no]
246   --enable-libpulse        enable Pulseaudio input via libpulse [no]
247   --enable-librubberband   enable rubberband needed for rubberband filter [no]
248   --enable-librtmp         enable RTMP[E] support via librtmp [no]
249   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
250   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
251   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
252   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
253   --enable-libsoxr         enable Include libsoxr resampling [no]
254   --enable-libspeex        enable Speex de/encoding via libspeex [no]
255   --enable-libssh          enable SFTP protocol via libssh [no]
256   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
257   --enable-libtheora       enable Theora encoding via libtheora [no]
258   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
259   --enable-libv4l2         enable libv4l2/v4l-utils [no]
260   --enable-libvidstab      enable video stabilization using vid.stab [no]
261   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
262   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
263                            native implementation exists [no]
264   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
265   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
266   --enable-libwebp         enable WebP encoding via libwebp [no]
267   --enable-libx264         enable H.264 encoding via x264 [no]
268   --enable-libx265         enable HEVC encoding via x265 [no]
269   --enable-libxavs         enable AVS encoding via xavs [no]
270   --enable-libxcb          enable X11 grabbing using XCB [autodetect]
271   --enable-libxcb-shm      enable X11 grabbing shm communication [autodetect]
272   --enable-libxcb-xfixes   enable X11 grabbing mouse rendering [autodetect]
273   --enable-libxcb-shape    enable X11 grabbing shape rendering [autodetect]
274   --enable-libxvid         enable Xvid encoding via xvidcore,
275                            native MPEG-4/Xvid encoder exists [no]
276   --enable-libzimg         enable z.lib, needed for zscale filter [no]
277   --enable-libzmq          enable message passing via libzmq [no]
278   --enable-libzvbi         enable teletext support via libzvbi [no]
279   --disable-lzma           disable lzma [autodetect]
280   --enable-decklink        enable Blackmagic DeckLink I/O support [no]
281   --enable-mediacodec      enable Android MediaCodec support [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-openal          enable OpenAL 1.1 capture support [no]
284   --enable-opencl          enable OpenCL code
285   --enable-opengl          enable OpenGL rendering [no]
286   --enable-openssl         enable openssl, needed for https support
287                            if gnutls is not used [no]
288   --disable-schannel       disable SChannel SSP, needed for TLS support on
289                            Windows if openssl and gnutls are not used [autodetect]
290   --disable-sdl2           disable sdl2 [autodetect]
291   --disable-securetransport disable Secure Transport, needed for TLS support
292                            on OSX if openssl and gnutls are not used [autodetect]
293   --disable-xlib           disable xlib [autodetect]
294   --disable-zlib           disable zlib [autodetect]
295
296   The following libraries provide various hardware acceleration features:
297   --disable-audiotoolbox   disable Apple AudioToolbox code [autodetect]
298   --disable-cuda           disable dynamically linked Nvidia CUDA code [autodetect]
299   --disable-cuvid          disable Nvidia CUVID support [autodetect]
300   --disable-d3d11va        disable Microsoft Direct3D 11 video acceleration code [autodetect]
301   --disable-dxva2          disable Microsoft DirectX 9 video acceleration code [autodetect]
302   --enable-libmfx          enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
303   --enable-libnpp          enable Nvidia Performance Primitives-based code [no]
304   --enable-mmal            enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
305   --disable-nvenc          disable Nvidia video encoding code [autodetect]
306   --enable-omx             enable OpenMAX IL code [no]
307   --enable-omx-rpi         enable OpenMAX IL code for Raspberry Pi [no]
308   --disable-vaapi          disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
309   --disable-vda            disable Apple Video Decode Acceleration code [autodetect]
310   --disable-vdpau          disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
311   --disable-videotoolbox   disable VideoToolbox code [autodetect]
312
313 Toolchain options:
314   --arch=ARCH              select architecture [$arch]
315   --cpu=CPU                select the minimum required CPU (affects
316                            instruction selection, may crash on older CPUs)
317   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
318   --progs-suffix=SUFFIX    program name suffix []
319   --enable-cross-compile   assume a cross-compiler is used
320   --sysroot=PATH           root of cross-build tree
321   --sysinclude=PATH        location of cross-build system headers
322   --target-os=OS           compiler targets OS [$target_os]
323   --target-exec=CMD        command to run executables on target
324   --target-path=DIR        path to view of build directory on target
325   --target-samples=DIR     path to samples directory on target
326   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
327   --toolchain=NAME         set tool defaults according to NAME
328   --nm=NM                  use nm tool NM [$nm_default]
329   --ar=AR                  use archive tool AR [$ar_default]
330   --as=AS                  use assembler AS [$as_default]
331   --ln_s=LN_S              use symbolic link tool LN_S [$ln_s_default]
332   --strip=STRIP            use strip tool STRIP [$strip_default]
333   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
334   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
335   --cc=CC                  use C compiler CC [$cc_default]
336   --cxx=CXX                use C compiler CXX [$cxx_default]
337   --objcc=OCC              use ObjC compiler OCC [$cc_default]
338   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
339   --ld=LD                  use linker LD [$ld_default]
340   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
341   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
342   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
343   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
344   --host-cc=HOSTCC         use host C compiler HOSTCC
345   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
346   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
347   --host-ld=HOSTLD         use host linker HOSTLD
348   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
349   --host-libs=HLIBS        use libs HLIBS when linking for host
350   --host-os=OS             compiler host OS [$target_os]
351   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
352   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
353   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
354   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
355   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
356   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
357   --extra-libs=ELIBS       add ELIBS [$ELIBS]
358   --extra-version=STRING   version string suffix []
359   --optflags=OPTFLAGS      override optimization-related compiler flags
360   --build-suffix=SUFFIX    library name suffix []
361   --enable-pic             build position-independent code
362   --enable-thumb           compile for Thumb instruction set
363   --enable-lto             use link-time optimization
364   --env="ENV=override"     override the environment variables
365
366 Advanced options (experts only):
367   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
368   --custom-allocator=NAME  use a supported custom allocator
369   --disable-symver         disable symbol versioning
370   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
371   --disable-safe-bitstream-reader
372                            disable buffer boundary checking in bitreaders
373                            (faster, but may crash)
374   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
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_cc "$@" <<EOF && append CPPFLAGS "$@"
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 "$@"
1043 int x;
1044 EOF
1045 }
1046
1047 test_objcflags(){
1048     log test_cflags "$@"
1049     set -- $($cflags_filter "$@")
1050     check_objcc "$@" <<EOF
1051 int x;
1052 EOF
1053 }
1054
1055 check_objcflags(){
1056     log check_cflags "$@"
1057     test_objcflags "$@" && 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     header="$1"
1221     func="$2"
1222     shift 2
1223     check_header $header && check_func $func "$@" && add_extralibs "$@"
1224 }
1225
1226 check_lib2(){
1227     log check_lib2 "$@"
1228     headers="$1"
1229     funcs="$2"
1230     shift 2
1231     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1232 }
1233
1234 check_lib_cpp(){
1235     log check_lib_cpp "$@"
1236     headers="$1"
1237     classes="$2"
1238     shift 2
1239     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1240 }
1241
1242 check_pkg_config(){
1243     log check_pkg_config "$@"
1244     pkgandversion="$1"
1245     pkg="${1%% *}"
1246     headers="$2"
1247     funcs="$3"
1248     shift 3
1249     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1250     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1251     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1252     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1253         set_safe "${pkg}_cflags" $pkg_cflags   &&
1254         set_safe "${pkg}_libs"   $pkg_libs
1255 }
1256
1257 check_exec(){
1258     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1259 }
1260
1261 check_exec_crash(){
1262     code=$(cat)
1263
1264     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1265     # are safe but may not be available everywhere.  Thus we use
1266     # raise(SIGTERM) instead.  The check is run in a subshell so we
1267     # can redirect the "Terminated" message from the shell.  SIGBUS
1268     # is not defined by standard C so it is used conditionally.
1269
1270     (check_exec "$@") >> $logfile 2>&1 <<EOF
1271 #include <signal.h>
1272 static void sighandler(int sig){
1273     raise(SIGTERM);
1274 }
1275 int foo(void){
1276     $code
1277 }
1278 int (*func_ptr)(void) = foo;
1279 int main(void){
1280     signal(SIGILL, sighandler);
1281     signal(SIGFPE, sighandler);
1282     signal(SIGSEGV, sighandler);
1283 #ifdef SIGBUS
1284     signal(SIGBUS, sighandler);
1285 #endif
1286     return func_ptr();
1287 }
1288 EOF
1289 }
1290
1291 check_type(){
1292     log check_type "$@"
1293     headers=$1
1294     type=$2
1295     shift 2
1296     disable_safe "$type"
1297     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1298 }
1299
1300 check_struct(){
1301     log check_struct "$@"
1302     headers=$1
1303     struct=$2
1304     member=$3
1305     shift 3
1306     disable_safe "${struct}_${member}"
1307     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1308         enable_safe "${struct}_${member}"
1309 }
1310
1311 check_builtin(){
1312     log check_builtin "$@"
1313     name=$1
1314     headers=$2
1315     builtin=$3
1316     shift 3
1317     disable "$name"
1318     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1319 }
1320
1321 check_compile_assert(){
1322     log check_compile_assert "$@"
1323     name=$1
1324     headers=$2
1325     condition=$3
1326     shift 3
1327     disable "$name"
1328     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1329 }
1330
1331 require(){
1332     name="$1"
1333     header="$2"
1334     func="$3"
1335     shift 3
1336     check_lib $header $func "$@" || die "ERROR: $name not found"
1337 }
1338
1339 require2(){
1340     name="$1"
1341     headers="$2"
1342     func="$3"
1343     shift 3
1344     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1345 }
1346
1347 require_cpp(){
1348     name="$1"
1349     headers="$2"
1350     classes="$3"
1351     shift 3
1352     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1353 }
1354
1355 use_pkg_config(){
1356     pkg="$1"
1357     check_pkg_config "$@" || return 1
1358     add_cflags    $(get_safe "${pkg}_cflags")
1359     add_extralibs $(get_safe "${pkg}_libs")
1360 }
1361
1362 require_pkg_config(){
1363     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1364 }
1365
1366 require_libfreetype(){
1367     log require_libfreetype "$@"
1368     pkg="freetype2"
1369     check_cmd $pkg_config --exists --print-errors $pkg \
1370       || die "ERROR: $pkg not found"
1371     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1372     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1373     {
1374         echo "#include <ft2build.h>"
1375         echo "#include FT_FREETYPE_H"
1376         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1377         echo "int main(void) { return 0; }"
1378     } | check_ld "cc" $pkg_cflags $pkg_libs \
1379       && set_safe "${pkg}_cflags" $pkg_cflags \
1380       && set_safe "${pkg}_libs"   $pkg_libs \
1381       || die "ERROR: $pkg not found"
1382     add_cflags    $(get_safe "${pkg}_cflags")
1383     add_extralibs $(get_safe "${pkg}_libs")
1384 }
1385
1386 hostcc_e(){
1387     eval printf '%s\\n' $HOSTCC_E
1388 }
1389
1390 hostcc_o(){
1391     eval printf '%s\\n' $HOSTCC_O
1392 }
1393
1394 check_host_cc(){
1395     log check_host_cc "$@"
1396     cat > $TMPC
1397     log_file $TMPC
1398     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1399 }
1400
1401 check_host_cpp(){
1402     log check_host_cpp "$@"
1403     cat > $TMPC
1404     log_file $TMPC
1405     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1406 }
1407
1408 check_host_cppflags(){
1409     log check_host_cppflags "$@"
1410     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1411 int x;
1412 EOF
1413 }
1414
1415 check_host_cflags(){
1416     log check_host_cflags "$@"
1417     set -- $($host_cflags_filter "$@")
1418     check_host_cc "$@" <<EOF && append host_cflags "$@"
1419 int x;
1420 EOF
1421 }
1422
1423 check_host_cpp_condition(){
1424     log check_host_cpp_condition "$@"
1425     header=$1
1426     condition=$2
1427     shift 2
1428     check_host_cpp "$@" <<EOF
1429 #include <$header>
1430 #if !($condition)
1431 #error "unsatisfied condition: $condition"
1432 #endif
1433 EOF
1434 }
1435
1436 cp_if_changed(){
1437     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1438     mkdir -p "$(dirname $2)"
1439     $cp_f "$1" "$2"
1440 }
1441
1442 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1443 # system-dependent things.
1444
1445 AVCODEC_COMPONENTS="
1446     bsfs
1447     decoders
1448     encoders
1449     hwaccels
1450     parsers
1451 "
1452
1453 AVDEVICE_COMPONENTS="
1454     indevs
1455     outdevs
1456 "
1457 AVFILTER_COMPONENTS="
1458     filters
1459 "
1460 AVFORMAT_COMPONENTS="
1461     demuxers
1462     muxers
1463     protocols
1464 "
1465
1466 AVRESAMPLE_COMPONENTS=""
1467 AVUTIL_COMPONENTS=""
1468
1469 COMPONENT_LIST="
1470     $AVCODEC_COMPONENTS
1471     $AVDEVICE_COMPONENTS
1472     $AVFILTER_COMPONENTS
1473     $AVFORMAT_COMPONENTS
1474     $AVRESAMPLE_COMPONENTS
1475     $AVUTIL_COMPONENTS
1476 "
1477
1478 EXAMPLE_LIST="
1479     avio_dir_cmd_example
1480     avio_reading_example
1481     decoding_encoding_example
1482     demuxing_decoding_example
1483     extract_mvs_example
1484     filter_audio_example
1485     filtering_audio_example
1486     filtering_video_example
1487     http_multiclient_example
1488     metadata_example
1489     muxing_example
1490     qsvdec_example
1491     remuxing_example
1492     resampling_audio_example
1493     scaling_video_example
1494     transcode_aac_example
1495     transcoding_example
1496 "
1497 EXTERNAL_AUTODETECT_LIBRARY_LIST="
1498     bzlib
1499     iconv
1500     libxcb
1501     libxcb_shm
1502     libxcb_shape
1503     libxcb_xfixes
1504     lzma
1505     schannel
1506     sdl
1507     sdl2
1508     securetransport
1509     xlib
1510     zlib
1511 "
1512
1513 EXTERNAL_LIBRARY_GPL_LIST="
1514     frei0r
1515     libcdio
1516     librubberband
1517     libvidstab
1518     libx264
1519     libx265
1520     libxavs
1521     libxvid
1522 "
1523
1524 EXTERNAL_LIBRARY_NONFREE_LIST="
1525     libfdk_aac
1526     openssl
1527 "
1528
1529 EXTERNAL_LIBRARY_VERSION3_LIST="
1530     gmp
1531     libopencore_amrnb
1532     libopencore_amrwb
1533     libvo_amrwbenc
1534 "
1535
1536 EXTERNAL_LIBRARY_GPLV3_LIST="
1537     libsmbclient
1538 "
1539
1540 EXTERNAL_LIBRARY_LIST="
1541     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1542     $EXTERNAL_LIBRARY_GPL_LIST
1543     $EXTERNAL_LIBRARY_NONFREE_LIST
1544     $EXTERNAL_LIBRARY_VERSION3_LIST
1545     $EXTERNAL_LIBRARY_GPLV3_LIST
1546     avisynth
1547     chromaprint
1548     crystalhd
1549     decklink
1550     gcrypt
1551     gnutls
1552     jni
1553     ladspa
1554     libass
1555     libbluray
1556     libbs2b
1557     libcaca
1558     libcelt
1559     libdc1394
1560     libflite
1561     libfontconfig
1562     libfreetype
1563     libfribidi
1564     libgme
1565     libgsm
1566     libiec61883
1567     libilbc
1568     libkvazaar
1569     libmodplug
1570     libmp3lame
1571     libnut
1572     libopencv
1573     libopenh264
1574     libopenjpeg
1575     libopenmpt
1576     libopus
1577     libpulse
1578     librtmp
1579     libschroedinger
1580     libshine
1581     libsmbclient
1582     libsnappy
1583     libsoxr
1584     libspeex
1585     libssh
1586     libtesseract
1587     libtheora
1588     libtwolame
1589     libv4l2
1590     libvorbis
1591     libvpx
1592     libwavpack
1593     libwebp
1594     libzimg
1595     libzmq
1596     libzvbi
1597     mediacodec
1598     netcdf
1599     openal
1600     opencl
1601     opengl
1602     videotoolbox
1603 "
1604 HWACCEL_AUTODETECT_LIBRARY_LIST="
1605     audiotoolbox
1606     cuda
1607     cuvid
1608     d3d11va
1609     dxva2
1610     nvenc
1611     vaapi
1612     vda
1613     vdpau
1614     videotoolbox_hwaccel
1615     xvmc
1616 "
1617
1618 HWACCEL_LIBRARY_NONFREE_LIST="
1619     libnpp
1620 "
1621
1622 HWACCEL_LIBRARY_LIST="
1623     $HWACCEL_AUTODETECT_LIBRARY_LIST
1624     $HWACCEL_LIBRARY_NONFREE_LIST
1625     libmfx
1626     mmal
1627     omx
1628 "
1629
1630 DOCUMENT_LIST="
1631     doc
1632     htmlpages
1633     manpages
1634     podpages
1635     txtpages
1636 "
1637
1638 FEATURE_LIST="
1639     ftrapv
1640     gray
1641     hardcoded_tables
1642     omx_rpi
1643     runtime_cpudetect
1644     safe_bitstream_reader
1645     shared
1646     small
1647     static
1648     swscale_alpha
1649 "
1650
1651 LIBRARY_LIST="
1652     avcodec
1653     avdevice
1654     avfilter
1655     avformat
1656     avresample
1657     avutil
1658     postproc
1659     swresample
1660     swscale
1661 "
1662
1663 LICENSE_LIST="
1664     gpl
1665     nonfree
1666     version3
1667 "
1668
1669 PROGRAM_LIST="
1670     ffplay
1671     ffprobe
1672     ffserver
1673     ffmpeg
1674 "
1675
1676 SUBSYSTEM_LIST="
1677     dct
1678     dwt
1679     error_resilience
1680     faan
1681     fast_unaligned
1682     fft
1683     lsp
1684     lzo
1685     mdct
1686     pixelutils
1687     network
1688     rdft
1689 "
1690
1691 CONFIG_LIST="
1692     $COMPONENT_LIST
1693     $DOCUMENT_LIST
1694     $EXAMPLE_LIST
1695     $EXTERNAL_LIBRARY_LIST
1696     $HWACCEL_LIBRARY_LIST
1697     $FEATURE_LIST
1698     $LICENSE_LIST
1699     $LIBRARY_LIST
1700     $PROGRAM_LIST
1701     $SUBSYSTEM_LIST
1702     fontconfig
1703     memalign_hack
1704     memory_poisoning
1705     neon_clobber_test
1706     pic
1707     pod2man
1708     raise_major
1709     thumb
1710     valgrind_backtrace
1711     xmm_clobber_test
1712 "
1713
1714 THREADS_LIST="
1715     pthreads
1716     os2threads
1717     w32threads
1718 "
1719
1720 ATOMICS_LIST="
1721     atomics_gcc
1722     atomics_suncc
1723     atomics_win32
1724 "
1725
1726 AUTODETECT_LIBS="
1727     $EXTERNAL_AUTODETECT_LIBRARY_LIST
1728     $HWACCEL_AUTODETECT_LIBRARY_LIST
1729     $THREADS_LIST
1730 "
1731
1732 ARCH_LIST="
1733     aarch64
1734     alpha
1735     arm
1736     avr32
1737     avr32_ap
1738     avr32_uc
1739     bfin
1740     ia64
1741     m68k
1742     mips
1743     mips64
1744     parisc
1745     ppc
1746     ppc64
1747     s390
1748     sh4
1749     sparc
1750     sparc64
1751     tilegx
1752     tilepro
1753     tomi
1754     x86
1755     x86_32
1756     x86_64
1757 "
1758
1759 ARCH_EXT_LIST_ARM="
1760     armv5te
1761     armv6
1762     armv6t2
1763     armv8
1764     neon
1765     vfp
1766     vfpv3
1767     setend
1768 "
1769
1770 ARCH_EXT_LIST_MIPS="
1771     mipsfpu
1772     mips32r2
1773     mips32r5
1774     mips64r2
1775     mips32r6
1776     mips64r6
1777     mipsdsp
1778     mipsdspr2
1779     msa
1780 "
1781
1782 ARCH_EXT_LIST_LOONGSON="
1783     loongson2
1784     loongson3
1785     mmi
1786 "
1787
1788 ARCH_EXT_LIST_X86_SIMD="
1789     aesni
1790     amd3dnow
1791     amd3dnowext
1792     avx
1793     avx2
1794     fma3
1795     fma4
1796     mmx
1797     mmxext
1798     sse
1799     sse2
1800     sse3
1801     sse4
1802     sse42
1803     ssse3
1804     xop
1805 "
1806
1807 ARCH_EXT_LIST_PPC="
1808     altivec
1809     dcbzl
1810     ldbrx
1811     power8
1812     ppc4xx
1813     vsx
1814 "
1815
1816 ARCH_EXT_LIST_X86="
1817     $ARCH_EXT_LIST_X86_SIMD
1818     cpunop
1819     i686
1820 "
1821
1822 ARCH_EXT_LIST="
1823     $ARCH_EXT_LIST_ARM
1824     $ARCH_EXT_LIST_PPC
1825     $ARCH_EXT_LIST_X86
1826     $ARCH_EXT_LIST_MIPS
1827     $ARCH_EXT_LIST_LOONGSON
1828 "
1829
1830 ARCH_FEATURES="
1831     aligned_stack
1832     fast_64bit
1833     fast_clz
1834     fast_cmov
1835     local_aligned_8
1836     local_aligned_16
1837     local_aligned_32
1838     simd_align
1839     simd_align_16
1840     simd_align_32
1841 "
1842
1843 BUILTIN_LIST="
1844     atomic_cas_ptr
1845     machine_rw_barrier
1846     MemoryBarrier
1847     mm_empty
1848     rdtsc
1849     sarestart
1850     sem_timedwait
1851     sync_val_compare_and_swap
1852 "
1853 HAVE_LIST_CMDLINE="
1854     inline_asm
1855     symver
1856     yasm
1857 "
1858
1859 HAVE_LIST_PUB="
1860     bigendian
1861     fast_unaligned
1862 "
1863
1864 HEADERS_LIST="
1865     alsa_asoundlib_h
1866     altivec_h
1867     arpa_inet_h
1868     asm_types_h
1869     cdio_paranoia_h
1870     cdio_paranoia_paranoia_h
1871     cuda_h
1872     dispatch_dispatch_h
1873     dev_bktr_ioctl_bt848_h
1874     dev_bktr_ioctl_meteor_h
1875     dev_ic_bt8xx_h
1876     dev_video_bktr_ioctl_bt848_h
1877     dev_video_meteor_ioctl_meteor_h
1878     direct_h
1879     dirent_h
1880     dlfcn_h
1881     d3d11_h
1882     dxva_h
1883     ES2_gl_h
1884     gsm_h
1885     io_h
1886     mach_mach_time_h
1887     machine_ioctl_bt848_h
1888     machine_ioctl_meteor_h
1889     malloc_h
1890     opencv2_core_core_c_h
1891     openjpeg_2_1_openjpeg_h
1892     openjpeg_2_0_openjpeg_h
1893     openjpeg_1_5_openjpeg_h
1894     OpenGL_gl3_h
1895     poll_h
1896     sndio_h
1897     soundcard_h
1898     stdatomic_h
1899     sys_mman_h
1900     sys_param_h
1901     sys_resource_h
1902     sys_select_h
1903     sys_soundcard_h
1904     sys_time_h
1905     sys_un_h
1906     sys_videoio_h
1907     termios_h
1908     udplite_h
1909     unistd_h
1910     valgrind_valgrind_h
1911     windows_h
1912     winsock2_h
1913 "
1914
1915 INTRINSICS_LIST="
1916     intrinsics_neon
1917 "
1918
1919 COMPLEX_FUNCS="
1920     cabs
1921     cexp
1922 "
1923
1924 MATH_FUNCS="
1925     atanf
1926     atan2f
1927     cbrt
1928     cbrtf
1929     copysign
1930     cosf
1931     erf
1932     exp2
1933     exp2f
1934     expf
1935     hypot
1936     isfinite
1937     isinf
1938     isnan
1939     ldexpf
1940     llrint
1941     llrintf
1942     log2
1943     log2f
1944     log10f
1945     lrint
1946     lrintf
1947     powf
1948     rint
1949     round
1950     roundf
1951     sinf
1952     trunc
1953     truncf
1954 "
1955
1956 SYSTEM_FUNCS="
1957     access
1958     aligned_malloc
1959     arc4random
1960     clock_gettime
1961     closesocket
1962     CommandLineToArgvW
1963     CoTaskMemFree
1964     CryptGenRandom
1965     dlopen
1966     fcntl
1967     flt_lim
1968     fork
1969     getaddrinfo
1970     gethrtime
1971     getopt
1972     GetProcessAffinityMask
1973     GetProcessMemoryInfo
1974     GetProcessTimes
1975     getrusage
1976     GetSystemTimeAsFileTime
1977     gettimeofday
1978     glob
1979     glXGetProcAddress
1980     gmtime_r
1981     inet_aton
1982     isatty
1983     jack_port_get_latency_range
1984     kbhit
1985     LoadLibrary
1986     localtime_r
1987     lstat
1988     lzo1x_999_compress
1989     mach_absolute_time
1990     MapViewOfFile
1991     memalign
1992     mkstemp
1993     mmap
1994     mprotect
1995     nanosleep
1996     PeekNamedPipe
1997     posix_memalign
1998     pthread_cancel
1999     sched_getaffinity
2000     SetConsoleTextAttribute
2001     SetConsoleCtrlHandler
2002     setmode
2003     setrlimit
2004     Sleep
2005     strerror_r
2006     sysconf
2007     sysctl
2008     usleep
2009     UTGetOSTypeFromString
2010     VirtualAlloc
2011     wglGetProcAddress
2012 "
2013
2014 TOOLCHAIN_FEATURES="
2015     as_dn_directive
2016     as_fpu_directive
2017     as_func
2018     as_object_arch
2019     asm_mod_q
2020     attribute_may_alias
2021     attribute_packed
2022     ebp_available
2023     ebx_available
2024     gnu_as
2025     gnu_windres
2026     ibm_asm
2027     inline_asm_direct_symbol_refs
2028     inline_asm_labels
2029     inline_asm_nonlocal_labels
2030     pragma_deprecated
2031     rsync_contimeout
2032     symver_asm_label
2033     symver_gnu_asm
2034     vfp_args
2035     xform_asm
2036     xmm_clobbers
2037 "
2038
2039 TYPES_LIST="
2040     CONDITION_VARIABLE_Ptr
2041     socklen_t
2042     struct_addrinfo
2043     struct_group_source_req
2044     struct_ip_mreq_source
2045     struct_ipv6_mreq
2046     struct_msghdr_msg_flags
2047     struct_pollfd
2048     struct_rusage_ru_maxrss
2049     struct_sctp_event_subscribe
2050     struct_sockaddr_in6
2051     struct_sockaddr_sa_len
2052     struct_sockaddr_storage
2053     struct_stat_st_mtim_tv_nsec
2054     struct_v4l2_frmivalenum_discrete
2055 "
2056
2057 HAVE_LIST="
2058     $ARCH_EXT_LIST
2059     $(add_suffix _external $ARCH_EXT_LIST)
2060     $(add_suffix _inline   $ARCH_EXT_LIST)
2061     $ARCH_FEATURES
2062     $ATOMICS_LIST
2063     $BUILTIN_LIST
2064     $COMPLEX_FUNCS
2065     $HAVE_LIST_CMDLINE
2066     $HAVE_LIST_PUB
2067     $HEADERS_LIST
2068     $INTRINSICS_LIST
2069     $MATH_FUNCS
2070     $SYSTEM_FUNCS
2071     $THREADS_LIST
2072     $TOOLCHAIN_FEATURES
2073     $TYPES_LIST
2074     atomics_native
2075     dos_paths
2076     dxva2_lib
2077     dxva2api_cobj
2078     libc_msvcrt
2079     libdc1394_1
2080     libdc1394_2
2081     makeinfo
2082     makeinfo_html
2083     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
2084     perl
2085     pod2man
2086     sdl2
2087     section_data_rel_ro
2088     texi2html
2089     threads
2090     vaapi_drm
2091     vaapi_x11
2092     vdpau_x11
2093     winrt
2094     xlib
2095 "
2096
2097 # options emitted with CONFIG_ prefix but not available on the command line
2098 CONFIG_EXTRA="
2099     aandcttables
2100     ac3dsp
2101     audio_frame_queue
2102     audiodsp
2103     blockdsp
2104     bswapdsp
2105     cabac
2106     dirac_parse
2107     dvprofile
2108     exif
2109     faandct
2110     faanidct
2111     fdctdsp
2112     flacdsp
2113     fmtconvert
2114     frame_thread_encoder
2115     g722dsp
2116     golomb
2117     gplv3
2118     h263dsp
2119     h264chroma
2120     h264dsp
2121     h264parse
2122     h264pred
2123     h264qpel
2124     hpeldsp
2125     huffman
2126     huffyuvdsp
2127     huffyuvencdsp
2128     idctdsp
2129     iirfilter
2130     mdct15
2131     intrax8
2132     iso_media
2133     ividsp
2134     jpegtables
2135     lgplv3
2136     libx262
2137     llauddsp
2138     llviddsp
2139     llvidencdsp
2140     lpc
2141     lzf
2142     me_cmp
2143     mpeg_er
2144     mpegaudio
2145     mpegaudiodsp
2146     mpegvideo
2147     mpegvideoenc
2148     mss34dsp
2149     pixblockdsp
2150     qpeldsp
2151     qsv
2152     qsvdec
2153     qsvenc
2154     rangecoder
2155     riffdec
2156     riffenc
2157     rtpdec
2158     rtpenc_chain
2159     rv34dsp
2160     sinewin
2161     snappy
2162     srtp
2163     startcode
2164     texturedsp
2165     texturedspenc
2166     tpeldsp
2167     vaapi_encode
2168     vc1dsp
2169     videodsp
2170     vp3dsp
2171     vp56dsp
2172     vp8dsp
2173     vt_bt2020
2174     wma_freqs
2175     wmv2dsp
2176 "
2177
2178 CMDLINE_SELECT="
2179     $ARCH_EXT_LIST
2180     $CONFIG_LIST
2181     $HAVE_LIST_CMDLINE
2182     $THREADS_LIST
2183     asm
2184     cross_compile
2185     debug
2186     extra_warnings
2187     logging
2188     lto
2189     optimizations
2190     rpath
2191     stripping
2192 "
2193
2194 PATHS_LIST="
2195     bindir
2196     datadir
2197     docdir
2198     incdir
2199     libdir
2200     mandir
2201     pkgconfigdir
2202     prefix
2203     shlibdir
2204     install_name_dir
2205 "
2206
2207 CMDLINE_SET="
2208     $PATHS_LIST
2209     ar
2210     arch
2211     as
2212     assert_level
2213     build_suffix
2214     cc
2215     objcc
2216     cpu
2217     cross_prefix
2218     custom_allocator
2219     cxx
2220     dep_cc
2221     doxygen
2222     env
2223     extra_version
2224     gas
2225     host_cc
2226     host_cflags
2227     host_ld
2228     host_ldflags
2229     host_libs
2230     host_os
2231     install
2232     ld
2233     ln_s
2234     logfile
2235     malloc_prefix
2236     nm
2237     optflags
2238     pkg_config
2239     pkg_config_flags
2240     progs_suffix
2241     random_seed
2242     ranlib
2243     samples
2244     strip
2245     sws_max_filter_size
2246     sysinclude
2247     sysroot
2248     target_exec
2249     target_os
2250     target_path
2251     target_samples
2252     tempprefix
2253     toolchain
2254     valgrind
2255     yasmexe
2256 "
2257
2258 CMDLINE_APPEND="
2259     extra_cflags
2260     extra_cxxflags
2261     extra_objcflags
2262     host_cppflags
2263 "
2264
2265 # code dependency declarations
2266
2267 # architecture extensions
2268
2269 armv5te_deps="arm"
2270 armv6_deps="arm"
2271 armv6t2_deps="arm"
2272 armv8_deps="aarch64"
2273 neon_deps_any="aarch64 arm"
2274 intrinsics_neon_deps="neon"
2275 vfp_deps_any="aarch64 arm"
2276 vfpv3_deps="vfp"
2277 setend_deps="arm"
2278
2279 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2280
2281 loongson2_deps="mips"
2282 loongson3_deps="mips"
2283 mipsfpu_deps="mips"
2284 mipsdsp_deps="mips"
2285 mipsdspr2_deps="mips"
2286 mips32r2_deps="mips"
2287 mips32r5_deps="mips"
2288 mips32r6_deps="mips"
2289 mips64r2_deps="mips"
2290 mips64r6_deps="mips"
2291 msa_deps="mipsfpu"
2292 mmi_deps="mips"
2293
2294 altivec_deps="ppc"
2295 dcbzl_deps="ppc"
2296 ldbrx_deps="ppc"
2297 ppc4xx_deps="ppc"
2298 vsx_deps="altivec"
2299 power8_deps="vsx"
2300
2301 cpunop_deps="i686"
2302 x86_64_select="i686"
2303 x86_64_suggest="fast_cmov"
2304
2305 amd3dnow_deps="mmx"
2306 amd3dnowext_deps="amd3dnow"
2307 i686_deps="x86"
2308 mmx_deps="x86"
2309 mmxext_deps="mmx"
2310 sse_deps="mmxext"
2311 sse2_deps="sse"
2312 sse3_deps="sse2"
2313 ssse3_deps="sse3"
2314 sse4_deps="ssse3"
2315 sse42_deps="sse4"
2316 aesni_deps="sse42"
2317 avx_deps="sse42"
2318 xop_deps="avx"
2319 fma3_deps="avx"
2320 fma4_deps="avx"
2321 avx2_deps="avx"
2322
2323 mmx_external_deps="yasm"
2324 mmx_inline_deps="inline_asm"
2325 mmx_suggest="mmx_external mmx_inline"
2326
2327 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2328     eval dep=\$${ext}_deps
2329     eval ${ext}_external_deps='"${dep}_external"'
2330     eval ${ext}_inline_deps='"${dep}_inline"'
2331     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2332 done
2333
2334 aligned_stack_if_any="aarch64 ppc x86"
2335 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2336 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2337 fast_unaligned_if_any="aarch64 ppc x86"
2338 simd_align_if_any="simd_align_16 simd_align_32"
2339 simd_align_16_if_any="altivec neon sse"
2340 simd_align_32_if_any="avx"
2341
2342 # system capabilities
2343 symver_if_any="symver_asm_label symver_gnu_asm"
2344 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2345
2346 # threading support
2347 atomics_gcc_if="sync_val_compare_and_swap"
2348 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2349 atomics_win32_if="MemoryBarrier"
2350 atomics_native_if_any="$ATOMICS_LIST"
2351 w32threads_deps="atomics_native"
2352 threads_if_any="$THREADS_LIST"
2353
2354 # subsystems
2355 dct_select="rdft"
2356 dirac_parse_select="golomb"
2357 error_resilience_select="me_cmp"
2358 faandct_deps="faan fdctdsp"
2359 faanidct_deps="faan idctdsp"
2360 h264dsp_select="startcode"
2361 frame_thread_encoder_deps="encoders threads"
2362 intrax8_select="blockdsp idctdsp"
2363 mdct_select="fft"
2364 mdct15_select="fft"
2365 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2366 mpeg_er_select="error_resilience"
2367 mpegaudio_select="mpegaudiodsp"
2368 mpegaudiodsp_select="dct"
2369 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2370 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2371 vc1dsp_select="h264chroma qpeldsp startcode"
2372 rdft_select="fft"
2373
2374 # decoders / encoders
2375 aac_decoder_select="mdct15 mdct sinewin"
2376 aac_fixed_decoder_select="mdct sinewin"
2377 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2378 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2379 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2380 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2381 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2382 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2383 adpcm_g722_decoder_select="g722dsp"
2384 adpcm_g722_encoder_select="g722dsp"
2385 aic_decoder_select="golomb idctdsp"
2386 alac_encoder_select="lpc"
2387 als_decoder_select="bswapdsp"
2388 amrnb_decoder_select="lsp"
2389 amrwb_decoder_select="lsp"
2390 amv_decoder_select="sp5x_decoder exif"
2391 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2392 ape_decoder_select="bswapdsp llauddsp"
2393 apng_decoder_select="zlib"
2394 apng_encoder_select="llvidencdsp zlib"
2395 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2396 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2397 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2398 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2399 atrac1_decoder_select="mdct sinewin"
2400 atrac3_decoder_select="mdct"
2401 atrac3p_decoder_select="mdct sinewin"
2402 avrn_decoder_select="exif jpegtables"
2403 bink_decoder_select="blockdsp hpeldsp"
2404 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2405 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2406 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2407 cllc_decoder_select="bswapdsp"
2408 comfortnoise_encoder_select="lpc"
2409 cook_decoder_select="audiodsp mdct sinewin"
2410 cscd_decoder_select="lzo"
2411 cscd_decoder_suggest="zlib"
2412 dca_decoder_select="mdct"
2413 dds_decoder_select="texturedsp"
2414 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2415 dnxhd_decoder_select="blockdsp idctdsp"
2416 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2417 dvvideo_decoder_select="dvprofile idctdsp"
2418 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2419 dxa_decoder_select="zlib"
2420 dxv_decoder_select="lzf texturedsp"
2421 eac3_decoder_select="ac3_decoder"
2422 eac3_encoder_select="ac3_encoder"
2423 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2424 eatgq_decoder_select="aandcttables"
2425 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2426 exr_decoder_select="zlib"
2427 ffv1_decoder_select="golomb rangecoder"
2428 ffv1_encoder_select="rangecoder"
2429 ffvhuff_decoder_select="huffyuv_decoder"
2430 ffvhuff_encoder_select="huffyuv_encoder"
2431 fic_decoder_select="golomb"
2432 flac_decoder_select="flacdsp golomb"
2433 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2434 flashsv2_decoder_select="zlib"
2435 flashsv2_encoder_select="zlib"
2436 flashsv_decoder_select="zlib"
2437 flashsv_encoder_select="zlib"
2438 flv_decoder_select="h263_decoder"
2439 flv_encoder_select="h263_encoder"
2440 fourxm_decoder_select="blockdsp bswapdsp"
2441 fraps_decoder_select="bswapdsp huffman"
2442 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2443 g729_decoder_select="audiodsp"
2444 h261_decoder_select="mpegvideo"
2445 h261_encoder_select="aandcttables mpegvideoenc"
2446 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2447 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2448 h263i_decoder_select="h263_decoder"
2449 h263p_decoder_select="h263_decoder"
2450 h263p_encoder_select="h263_encoder"
2451 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2452 h264_decoder_suggest="error_resilience"
2453 hap_decoder_select="snappy texturedsp"
2454 hap_encoder_deps="libsnappy"
2455 hap_encoder_select="texturedspenc"
2456 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2457 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2458 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
2459 iac_decoder_select="imc_decoder"
2460 imc_decoder_select="bswapdsp fft mdct sinewin"
2461 indeo3_decoder_select="hpeldsp"
2462 indeo4_decoder_select="ividsp"
2463 indeo5_decoder_select="ividsp"
2464 interplay_video_decoder_select="hpeldsp"
2465 jpegls_decoder_select="golomb mjpeg_decoder"
2466 jpegls_encoder_select="golomb"
2467 jv_decoder_select="blockdsp"
2468 lagarith_decoder_select="llviddsp"
2469 ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
2470 loco_decoder_select="golomb"
2471 magicyuv_decoder_select="llviddsp"
2472 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2473 metasound_decoder_select="lsp mdct sinewin"
2474 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2475 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2476 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2477 mjpegb_decoder_select="mjpeg_decoder"
2478 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2479 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2480 mlp_decoder_select="mlp_parser"
2481 motionpixels_decoder_select="bswapdsp"
2482 mp1_decoder_select="mpegaudio"
2483 mp1float_decoder_select="mpegaudio"
2484 mp2_decoder_select="mpegaudio"
2485 mp2float_decoder_select="mpegaudio"
2486 mp3_decoder_select="mpegaudio"
2487 mp3adu_decoder_select="mpegaudio"
2488 mp3adufloat_decoder_select="mpegaudio"
2489 mp3float_decoder_select="mpegaudio"
2490 mp3on4_decoder_select="mpegaudio"
2491 mp3on4float_decoder_select="mpegaudio"
2492 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2493 mpc8_decoder_select="mpegaudiodsp"
2494 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2495 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2496 mpegvideo_decoder_select="mpegvideo"
2497 mpeg1video_decoder_select="mpegvideo"
2498 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2499 mpeg2video_decoder_select="mpegvideo"
2500 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2501 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2502 mpeg4_encoder_select="h263_encoder"
2503 msa1_decoder_select="mss34dsp"
2504 msmpeg4v1_decoder_select="h263_decoder"
2505 msmpeg4v2_decoder_select="h263_decoder"
2506 msmpeg4v2_encoder_select="h263_encoder"
2507 msmpeg4v3_decoder_select="h263_decoder"
2508 msmpeg4v3_encoder_select="h263_encoder"
2509 mss2_decoder_select="vc1_decoder mpegvideo"
2510 mts2_decoder_select="mss34dsp"
2511 mxpeg_decoder_select="mjpeg_decoder"
2512 nellymoser_decoder_select="mdct sinewin"
2513 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2514 nuv_decoder_select="idctdsp lzo"
2515 on2avc_decoder_select="mdct"
2516 opus_decoder_deps="swresample"
2517 opus_decoder_select="mdct15"
2518 opus_encoder_select="audio_frame_queue mdct15"
2519 png_decoder_select="zlib"
2520 png_encoder_select="llvidencdsp zlib"
2521 prores_decoder_select="blockdsp idctdsp"
2522 prores_encoder_select="fdctdsp"
2523 qcelp_decoder_select="lsp"
2524 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2525 ra_144_decoder_select="audiodsp"
2526 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2527 ralf_decoder_select="golomb"
2528 rawvideo_decoder_select="bswapdsp"
2529 rscc_decoder_select="zlib"
2530 rtjpeg_decoder_select="me_cmp"
2531 rv10_decoder_select="h263_decoder"
2532 rv10_encoder_select="h263_encoder"
2533 rv20_decoder_select="h263_decoder"
2534 rv20_encoder_select="h263_encoder"
2535 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2536 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2537 screenpresso_decoder_select="zlib"
2538 shorten_decoder_select="golomb bswapdsp"
2539 sipr_decoder_select="lsp"
2540 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2541 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2542 sonic_decoder_select="golomb rangecoder"
2543 sonic_encoder_select="golomb rangecoder"
2544 sonic_ls_encoder_select="golomb rangecoder"
2545 sp5x_decoder_select="mjpeg_decoder"
2546 svq1_decoder_select="hpeldsp"
2547 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2548 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2549 svq3_decoder_suggest="zlib"
2550 tak_decoder_select="audiodsp"
2551 tdsc_decoder_select="zlib mjpeg_decoder"
2552 theora_decoder_select="vp3_decoder"
2553 thp_decoder_select="mjpeg_decoder"
2554 tiff_decoder_suggest="zlib lzma"
2555 tiff_encoder_suggest="zlib"
2556 truehd_decoder_select="mlp_parser"
2557 truemotion2_decoder_select="bswapdsp"
2558 truespeech_decoder_select="bswapdsp"
2559 tscc_decoder_select="zlib"
2560 twinvq_decoder_select="mdct lsp sinewin"
2561 txd_decoder_select="texturedsp"
2562 utvideo_decoder_select="bswapdsp llviddsp"
2563 utvideo_encoder_select="bswapdsp huffman llvidencdsp"
2564 vble_decoder_select="llviddsp"
2565 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
2566 vc1_qsv_decoder_deps="libmfx"
2567 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2568 vc1image_decoder_select="vc1_decoder"
2569 vorbis_decoder_select="mdct"
2570 vorbis_encoder_select="mdct"
2571 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2572 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2573 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2574 vp6a_decoder_select="vp6_decoder"
2575 vp6f_decoder_select="vp6_decoder"
2576 vp7_decoder_select="h264pred videodsp vp8dsp"
2577 vp8_decoder_select="h264pred videodsp vp8dsp"
2578 vp9_decoder_select="videodsp vp9_parser"
2579 webp_decoder_select="vp8_decoder exif"
2580 wmalossless_decoder_select="llauddsp"
2581 wmapro_decoder_select="mdct sinewin wma_freqs"
2582 wmav1_decoder_select="mdct sinewin wma_freqs"
2583 wmav1_encoder_select="mdct sinewin wma_freqs"
2584 wmav2_decoder_select="mdct sinewin wma_freqs"
2585 wmav2_encoder_select="mdct sinewin wma_freqs"
2586 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2587 wmv1_decoder_select="h263_decoder"
2588 wmv1_encoder_select="h263_encoder"
2589 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2590 wmv2_encoder_select="h263_encoder wmv2dsp"
2591 wmv3_decoder_select="vc1_decoder"
2592 wmv3image_decoder_select="wmv3_decoder"
2593 xma1_decoder_select="wmapro_decoder"
2594 xma2_decoder_select="wmapro_decoder"
2595 zerocodec_decoder_select="zlib"
2596 zlib_decoder_select="zlib"
2597 zlib_encoder_select="zlib"
2598 zmbv_decoder_select="zlib"
2599 zmbv_encoder_select="zlib"
2600
2601 # platform codecs
2602 audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
2603 audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
2604
2605 # hardware accelerators
2606 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2607 cuda_deps_any="dlopen LoadLibrary"
2608 cuvid_deps="cuda"
2609 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2610 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2611 dxva2_extralibs="-luser32"
2612 vaapi_deps="va_va_h"
2613 vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h"
2614 vda_framework_extralibs="-framework VideoDecodeAcceleration"
2615 vda_deps="vda_framework pthreads"
2616 vda_extralibs="-framework CoreFoundation -framework QuartzCore"
2617 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2618 videotoolbox_hwaccel_deps="videotoolbox pthreads"
2619 videotoolbox_hwaccel_extralibs="-framework QuartzCore"
2620 xvmc_deps="X11_extensions_XvMClib_h"
2621
2622 h263_vaapi_hwaccel_deps="vaapi"
2623 h263_vaapi_hwaccel_select="h263_decoder"
2624 h263_videotoolbox_hwaccel_deps="videotoolbox"
2625 h263_videotoolbox_hwaccel_select="h263_decoder"
2626 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2627 h264_cuvid_hwaccel_deps="cuda cuvid"
2628 h264_d3d11va_hwaccel_deps="d3d11va"
2629 h264_d3d11va_hwaccel_select="h264_decoder"
2630 h264_dxva2_hwaccel_deps="dxva2"
2631 h264_dxva2_hwaccel_select="h264_decoder"
2632 h264_mediacodec_decoder_deps="mediacodec"
2633 h264_mediacodec_hwaccel_deps="mediacodec"
2634 h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
2635 h264_mmal_decoder_deps="mmal"
2636 h264_mmal_decoder_select="mmal"
2637 h264_mmal_hwaccel_deps="mmal"
2638 h264_omx_encoder_deps="omx"
2639 h264_qsv_hwaccel_deps="libmfx"
2640 h264_vaapi_hwaccel_deps="vaapi"
2641 h264_vaapi_hwaccel_select="h264_decoder"
2642 h264_vda_decoder_deps="vda"
2643 h264_vda_decoder_select="h264_decoder"
2644 h264_vda_hwaccel_deps="vda"
2645 h264_vda_hwaccel_select="h264_decoder"
2646 h264_vda_old_hwaccel_deps="vda"
2647 h264_vda_old_hwaccel_select="h264_decoder"
2648 h264_vdpau_decoder_deps="vdpau"
2649 h264_vdpau_decoder_select="h264_decoder"
2650 h264_vdpau_hwaccel_deps="vdpau"
2651 h264_vdpau_hwaccel_select="h264_decoder"
2652 h264_videotoolbox_hwaccel_deps="videotoolbox"
2653 h264_videotoolbox_hwaccel_select="h264_decoder"
2654 hevc_cuvid_hwaccel_deps="cuda cuvid"
2655 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2656 hevc_d3d11va_hwaccel_select="hevc_decoder"
2657 hevc_mediacodec_decoder_deps="mediacodec"
2658 hevc_mediacodec_hwaccel_deps="mediacodec"
2659 hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
2660 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2661 hevc_dxva2_hwaccel_select="hevc_decoder"
2662 hevc_qsv_hwaccel_deps="libmfx"
2663 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2664 hevc_vaapi_hwaccel_select="hevc_decoder"
2665 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2666 hevc_vdpau_hwaccel_select="hevc_decoder"
2667 mjpeg_cuvid_hwaccel_deps="cuda cuvid"
2668 mpeg_vdpau_decoder_deps="vdpau"
2669 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2670 mpeg_xvmc_hwaccel_deps="xvmc"
2671 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2672 mpeg1_cuvid_hwaccel_deps="cuda cuvid"
2673 mpeg1_vdpau_decoder_deps="vdpau"
2674 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2675 mpeg1_vdpau_hwaccel_deps="vdpau"
2676 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2677 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2678 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2679 mpeg1_xvmc_hwaccel_deps="xvmc"
2680 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2681 mpeg2_crystalhd_decoder_select="crystalhd"
2682 mpeg2_cuvid_hwaccel_deps="cuda cuvid"
2683 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2684 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2685 mpeg2_dxva2_hwaccel_deps="dxva2"
2686 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2687 mpeg2_mmal_decoder_deps="mmal"
2688 mpeg2_mmal_decoder_select="mmal"
2689 mpeg2_mmal_hwaccel_deps="mmal"
2690 mpeg2_qsv_hwaccel_deps="libmfx"
2691 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2692 mpeg2_vaapi_hwaccel_deps="vaapi"
2693 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2694 mpeg2_vdpau_hwaccel_deps="vdpau"
2695 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2696 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2697 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2698 mpeg2_xvmc_hwaccel_deps="xvmc"
2699 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2700 mpeg4_crystalhd_decoder_select="crystalhd"
2701 mpeg4_cuvid_hwaccel_deps="cuda cuvid"
2702 mpeg4_mediacodec_decoder_deps="mediacodec"
2703 mpeg4_mediacodec_hwaccel_deps="mediacodec"
2704 mpeg4_mmal_decoder_deps="mmal"
2705 mpeg4_mmal_decoder_select="mmal"
2706 mpeg4_mmal_hwaccel_deps="mmal"
2707 mpeg4_omx_encoder_deps="omx"
2708 mpeg4_vaapi_hwaccel_deps="vaapi"
2709 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2710 mpeg4_vdpau_decoder_deps="vdpau"
2711 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2712 mpeg4_vdpau_hwaccel_deps="vdpau"
2713 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2714 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2715 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2716 msmpeg4_crystalhd_decoder_select="crystalhd"
2717 vc1_crystalhd_decoder_select="crystalhd"
2718 vc1_cuvid_hwaccel_deps="cuda cuvid"
2719 vc1_d3d11va_hwaccel_deps="d3d11va"
2720 vc1_d3d11va_hwaccel_select="vc1_decoder"
2721 vc1_dxva2_hwaccel_deps="dxva2"
2722 vc1_dxva2_hwaccel_select="vc1_decoder"
2723 vc1_mmal_decoder_deps="mmal"
2724 vc1_mmal_decoder_select="mmal"
2725 vc1_mmal_hwaccel_deps="mmal"
2726 vc1_qsv_hwaccel_deps="libmfx"
2727 vc1_qsv_hwaccel_select="qsvdec_vc1"
2728 vc1_vaapi_hwaccel_deps="vaapi"
2729 vc1_vaapi_hwaccel_select="vc1_decoder"
2730 vc1_vdpau_decoder_deps="vdpau"
2731 vc1_vdpau_decoder_select="vc1_decoder"
2732 vc1_vdpau_hwaccel_deps="vdpau"
2733 vc1_vdpau_hwaccel_select="vc1_decoder"
2734 vp8_cuvid_hwaccel_deps="cuda cuvid"
2735 vp9_cuvid_hwaccel_deps="cuda cuvid"
2736 vp8_mediacodec_decoder_deps="mediacodec"
2737 vp8_mediacodec_hwaccel_deps="mediacodec"
2738 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2739 vp9_d3d11va_hwaccel_select="vp9_decoder"
2740 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2741 vp9_dxva2_hwaccel_select="vp9_decoder"
2742 vp9_mediacodec_decoder_deps="mediacodec"
2743 vp9_mediacodec_hwaccel_deps="mediacodec"
2744 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
2745 vp9_vaapi_hwaccel_select="vp9_decoder"
2746 wmv3_crystalhd_decoder_select="crystalhd"
2747 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2748 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2749 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2750 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2751 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2752
2753 # hardware-accelerated codecs
2754 omx_deps="dlopen pthreads"
2755 omx_extralibs='$ldl'
2756 qsvdec_select="qsv"
2757 qsvenc_select="qsv"
2758 vaapi_encode_deps="vaapi"
2759
2760 hwupload_cuda_filter_deps="cuda"
2761 scale_npp_filter_deps="cuda libnpp"
2762
2763 nvenc_deps="cuda"
2764 nvenc_deps_any="dlopen LoadLibrary"
2765 nvenc_encoder_deps="nvenc"
2766 h264_cuvid_decoder_deps="cuda cuvid"
2767 h264_cuvid_decoder_select="h264_mp4toannexb_bsf h264_cuvid_hwaccel"
2768 h264_nvenc_encoder_deps="nvenc"
2769 h264_qsv_decoder_deps="libmfx"
2770 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2771 h264_qsv_encoder_deps="libmfx"
2772 h264_qsv_encoder_select="qsvenc"
2773 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2774 h264_vaapi_encoder_select="vaapi_encode golomb"
2775
2776 hevc_cuvid_decoder_deps="cuda cuvid"
2777 hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf hevc_cuvid_hwaccel"
2778 hevc_nvenc_encoder_deps="nvenc"
2779 hevc_qsv_decoder_deps="libmfx"
2780 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2781 hevc_qsv_encoder_deps="libmfx"
2782 hevc_qsv_encoder_select="qsvenc"
2783 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2784 hevc_vaapi_encoder_select="vaapi_encode golomb"
2785 mjpeg_cuvid_decoder_deps="cuda cuvid"
2786 mjpeg_cuvid_decoder_select="mjpeg_cuvid_hwaccel"
2787 mpeg1_cuvid_decoder_deps="cuda cuvid"
2788 mpeg1_cuvid_decoder_select="mpeg1_cuvid_hwaccel"
2789 mpeg2_cuvid_decoder_deps="cuda cuvid"
2790 mpeg2_cuvid_decoder_select="mpeg2_cuvid_hwaccel"
2791 mpeg2_qsv_decoder_deps="libmfx"
2792 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2793 mpeg2_qsv_encoder_deps="libmfx"
2794 mpeg2_qsv_encoder_select="qsvenc"
2795 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2796 mpeg2_vaapi_encoder_select="vaapi_encode"
2797 mpeg4_cuvid_decoder_deps="cuda cuvid"
2798 mpeg4_cuvid_decoder_select="mpeg4_cuvid_hwaccel"
2799 nvenc_h264_encoder_deps="nvenc"
2800 nvenc_hevc_encoder_deps="nvenc"
2801
2802 vc1_cuvid_decoder_deps="cuda cuvid"
2803 vc1_cuvid_decoder_select="vc1_cuvid_hwaccel"
2804 vp8_cuvid_decoder_deps="cuda cuvid"
2805 vp8_cuvid_decoder_select="vp8_cuvid_hwaccel"
2806 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2807 vp8_vaapi_encoder_select="vaapi_encode"
2808 vp9_cuvid_decoder_deps="cuda cuvid"
2809 vp9_cuvid_decoder_select="vp9_cuvid_hwaccel"
2810
2811 # parsers
2812 h264_parser_select="golomb h264dsp h264parse"
2813 hevc_parser_select="golomb"
2814 mpegvideo_parser_select="mpegvideo"
2815 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2816 vc1_parser_select="vc1dsp"
2817
2818 # bitstream_filters
2819 mjpeg2jpeg_bsf_select="jpegtables"
2820
2821 # external libraries
2822 aac_at_decoder_deps="audiotoolbox"
2823 ac3_at_decoder_deps="audiotoolbox"
2824 ac3_at_decoder_select="ac3_parser"
2825 adpcm_ima_qt_at_decoder_deps="audiotoolbox"
2826 alac_at_decoder_deps="audiotoolbox"
2827 amr_nb_at_decoder_deps="audiotoolbox"
2828 avisynth_deps_any="dlopen LoadLibrary"
2829 avisynth_demuxer_deps="avisynth"
2830 avisynth_demuxer_select="riffdec"
2831 eac3_at_decoder_deps="audiotoolbox"
2832 eac3_at_decoder_select="ac3_parser"
2833 gsm_ms_at_decoder_deps="audiotoolbox"
2834 ilbc_at_decoder_deps="audiotoolbox"
2835 mp1_at_decoder_deps="audiotoolbox"
2836 mp2_at_decoder_deps="audiotoolbox"
2837 mp3_at_decoder_deps="audiotoolbox"
2838 pcm_alaw_at_decoder_deps="audiotoolbox"
2839 pcm_mulaw_at_decoder_deps="audiotoolbox"
2840 qdmc_at_decoder_deps="audiotoolbox"
2841 qdm2_at_decoder_deps="audiotoolbox"
2842 aac_at_encoder_deps="audiotoolbox"
2843 aac_at_encoder_select="audio_frame_queue"
2844 alac_at_encoder_deps="audiotoolbox"
2845 alac_at_encoder_select="audio_frame_queue"
2846 ilbc_at_encoder_deps="audiotoolbox"
2847 ilbc_at_encoder_select="audio_frame_queue"
2848 pcm_alaw_at_encoder_deps="audiotoolbox"
2849 pcm_alaw_at_encoder_select="audio_frame_queue"
2850 pcm_mulaw_at_encoder_deps="audiotoolbox"
2851 pcm_mulaw_at_encoder_select="audio_frame_queue"
2852 chromaprint_muxer_deps="chromaprint"
2853 h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
2854 libcelt_decoder_deps="libcelt"
2855 libfdk_aac_decoder_deps="libfdk_aac"
2856 libfdk_aac_encoder_deps="libfdk_aac"
2857 libfdk_aac_encoder_select="audio_frame_queue"
2858 libgme_demuxer_deps="libgme"
2859 libgsm_decoder_deps="libgsm"
2860 libgsm_encoder_deps="libgsm"
2861 libgsm_ms_decoder_deps="libgsm"
2862 libgsm_ms_encoder_deps="libgsm"
2863 libilbc_decoder_deps="libilbc"
2864 libilbc_encoder_deps="libilbc"
2865 libkvazaar_encoder_deps="libkvazaar"
2866 libmodplug_demuxer_deps="libmodplug"
2867 libmp3lame_encoder_deps="libmp3lame"
2868 libmp3lame_encoder_select="audio_frame_queue"
2869 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2870 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2871 libopencore_amrnb_encoder_select="audio_frame_queue"
2872 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2873 libopenh264_decoder_deps="libopenh264"
2874 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2875 libopenh264_encoder_deps="libopenh264"
2876 libopenjpeg_decoder_deps="libopenjpeg"
2877 libopenjpeg_encoder_deps="libopenjpeg"
2878 libopenmpt_demuxer_deps="libopenmpt"
2879 libopus_decoder_deps="libopus"
2880 libopus_encoder_deps="libopus"
2881 libopus_encoder_select="audio_frame_queue"
2882 libschroedinger_decoder_deps="libschroedinger"
2883 libschroedinger_encoder_deps="libschroedinger"
2884 libshine_encoder_deps="libshine"
2885 libshine_encoder_select="audio_frame_queue"
2886 libspeex_decoder_deps="libspeex"
2887 libspeex_encoder_deps="libspeex"
2888 libspeex_encoder_select="audio_frame_queue"
2889 libtheora_encoder_deps="libtheora"
2890 libtwolame_encoder_deps="libtwolame"
2891 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2892 libvorbis_decoder_deps="libvorbis"
2893 libvorbis_encoder_deps="libvorbis"
2894 libvorbis_encoder_select="audio_frame_queue"
2895 libvpx_vp8_decoder_deps="libvpx"
2896 libvpx_vp8_encoder_deps="libvpx"
2897 libvpx_vp9_decoder_deps="libvpx"
2898 libvpx_vp9_encoder_deps="libvpx"
2899 libwavpack_encoder_deps="libwavpack"
2900 libwebp_encoder_deps="libwebp"
2901 libwebp_anim_encoder_deps="libwebp"
2902 libx262_encoder_deps="libx262"
2903 libx264_encoder_deps="libx264"
2904 libx264rgb_encoder_deps="libx264 x264_csp_bgr"
2905 libx264rgb_encoder_select="libx264_encoder"
2906 libx265_encoder_deps="libx265"
2907 libxavs_encoder_deps="libxavs"
2908 libxvid_encoder_deps="libxvid"
2909 libzvbi_teletext_decoder_deps="libzvbi"
2910 videotoolbox_deps="VideoToolbox_VideoToolbox_h"
2911 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
2912 videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
2913 videotoolbox_encoder_suggest="vda_framework vt_bt2020"
2914 vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
2915
2916 # demuxers / muxers
2917 ac3_demuxer_select="ac3_parser"
2918 aiff_muxer_select="iso_media"
2919 asf_demuxer_select="riffdec"
2920 asf_o_demuxer_select="riffdec"
2921 asf_muxer_select="riffenc"
2922 asf_stream_muxer_select="asf_muxer"
2923 avi_demuxer_select="iso_media riffdec exif"
2924 avi_muxer_select="riffenc"
2925 caf_demuxer_select="iso_media riffdec"
2926 caf_muxer_select="iso_media"
2927 dash_muxer_select="mp4_muxer"
2928 dirac_demuxer_select="dirac_parser"
2929 dts_demuxer_select="dca_parser"
2930 dtshd_demuxer_select="dca_parser"
2931 dv_demuxer_select="dvprofile"
2932 dv_muxer_select="dvprofile"
2933 dxa_demuxer_select="riffdec"
2934 eac3_demuxer_select="ac3_parser"
2935 f4v_muxer_select="mov_muxer"
2936 fifo_muxer_deps="threads"
2937 flac_demuxer_select="flac_parser"
2938 hds_muxer_select="flv_muxer"
2939 hls_muxer_select="mpegts_muxer"
2940 image2_alias_pix_demuxer_select="image2_demuxer"
2941 image2_brender_pix_demuxer_select="image2_demuxer"
2942 ipod_muxer_select="mov_muxer"
2943 ismv_muxer_select="mov_muxer"
2944 libnut_demuxer_deps="libnut"
2945 libnut_muxer_deps="libnut"
2946 matroska_audio_muxer_select="matroska_muxer"
2947 matroska_demuxer_select="iso_media riffdec"
2948 matroska_demuxer_suggest="bzlib lzo zlib"
2949 matroska_muxer_select="iso_media riffenc"
2950 mmf_muxer_select="riffenc"
2951 mov_demuxer_select="iso_media riffdec"
2952 mov_demuxer_suggest="zlib"
2953 mov_muxer_select="iso_media riffenc rtpenc_chain"
2954 mp3_demuxer_select="mpegaudio_parser"
2955 mp4_muxer_select="mov_muxer"
2956 mpegts_demuxer_select="iso_media"
2957 mpegts_muxer_select="adts_muxer latm_muxer"
2958 mpegtsraw_demuxer_select="mpegts_demuxer"
2959 mxf_d10_muxer_select="mxf_muxer"
2960 mxf_opatom_muxer_select="mxf_muxer"
2961 nut_muxer_select="riffenc"
2962 nuv_demuxer_select="riffdec"
2963 oga_muxer_select="ogg_muxer"
2964 ogg_demuxer_select="dirac_parse"
2965 ogv_muxer_select="ogg_muxer"
2966 opus_muxer_select="ogg_muxer"
2967 psp_muxer_select="mov_muxer"
2968 rtp_demuxer_select="sdp_demuxer"
2969 rtp_muxer_select="golomb"
2970 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2971 rtsp_demuxer_select="http_protocol rtpdec"
2972 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2973 sap_demuxer_select="sdp_demuxer"
2974 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2975 sdp_demuxer_select="rtpdec"
2976 smoothstreaming_muxer_select="ismv_muxer"
2977 spdif_muxer_select="aac_parser"
2978 spx_muxer_select="ogg_muxer"
2979 swf_demuxer_suggest="zlib"
2980 tak_demuxer_select="tak_parser"
2981 tg2_muxer_select="mov_muxer"
2982 tgp_muxer_select="mov_muxer"
2983 vobsub_demuxer_select="mpegps_demuxer"
2984 w64_demuxer_select="wav_demuxer"
2985 w64_muxer_select="wav_muxer"
2986 wav_demuxer_select="riffdec"
2987 wav_muxer_select="riffenc"
2988 webm_muxer_select="iso_media riffenc"
2989 webm_dash_manifest_demuxer_select="matroska_demuxer"
2990 wtv_demuxer_select="mpegts_demuxer riffdec"
2991 wtv_muxer_select="mpegts_muxer riffenc"
2992 xmv_demuxer_select="riffdec"
2993 xwma_demuxer_select="riffdec"
2994
2995 # indevs / outdevs
2996 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2997 alsa_outdev_deps="alsa_asoundlib_h"
2998 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2999 avfoundation_indev_select="avfoundation"
3000 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
3001 caca_outdev_deps="libcaca"
3002 decklink_indev_deps="decklink pthreads"
3003 decklink_indev_extralibs="-lstdc++"
3004 decklink_outdev_deps="decklink pthreads"
3005 decklink_outdev_extralibs="-lstdc++"
3006 dshow_indev_deps="IBaseFilter"
3007 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
3008 dv1394_indev_deps="dv1394"
3009 dv1394_indev_select="dv_demuxer"
3010 fbdev_indev_deps="linux_fb_h"
3011 fbdev_outdev_deps="linux_fb_h"
3012 gdigrab_indev_deps="CreateDIBSection"
3013 gdigrab_indev_extralibs="-lgdi32"
3014 gdigrab_indev_select="bmp_decoder"
3015 iec61883_indev_deps="libiec61883"
3016 jack_indev_deps="jack_jack_h"
3017 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
3018 lavfi_indev_deps="avfilter"
3019 libcdio_indev_deps="libcdio"
3020 libdc1394_indev_deps="libdc1394"
3021 libv4l2_indev_deps="libv4l2"
3022 openal_indev_deps="openal"
3023 opengl_outdev_deps="opengl"
3024 oss_indev_deps_any="soundcard_h sys_soundcard_h"
3025 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
3026 pulse_indev_deps="libpulse"
3027 pulse_outdev_deps="libpulse"
3028 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
3029 qtkit_indev_select="qtkit"
3030 sdl2_outdev_deps="sdl2"
3031 sndio_indev_deps="sndio_h"
3032 sndio_outdev_deps="sndio_h"
3033 v4l_indev_deps="linux_videodev_h"
3034 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
3035 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
3036 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
3037 vfwcap_indev_extralibs="-lavicap32"
3038 xcbgrab_indev_deps="libxcb"
3039 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
3040 xv_outdev_extralibs="-lXv -lX11 -lXext"
3041
3042 # protocols
3043 async_protocol_deps="threads"
3044 bluray_protocol_deps="libbluray"
3045 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
3046 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
3047 ffrtmpcrypt_protocol_select="tcp_protocol"
3048 ffrtmphttp_protocol_deps="!librtmp_protocol"
3049 ffrtmphttp_protocol_select="http_protocol"
3050 ftp_protocol_select="tcp_protocol"
3051 gopher_protocol_select="network"
3052 http_protocol_select="tcp_protocol"
3053 httpproxy_protocol_select="tcp_protocol"
3054 https_protocol_select="tls_protocol"
3055 icecast_protocol_select="http_protocol"
3056 librtmp_protocol_deps="librtmp"
3057 librtmpe_protocol_deps="librtmp"
3058 librtmps_protocol_deps="librtmp"
3059 librtmpt_protocol_deps="librtmp"
3060 librtmpte_protocol_deps="librtmp"
3061 libsmbclient_protocol_deps="libsmbclient gplv3"
3062 libssh_protocol_deps="libssh"
3063 mmsh_protocol_select="http_protocol"
3064 mmst_protocol_select="network"
3065 rtmp_protocol_deps="!librtmp_protocol"
3066 rtmp_protocol_select="tcp_protocol"
3067 rtmpe_protocol_select="ffrtmpcrypt_protocol"
3068 rtmps_protocol_deps="!librtmp_protocol"
3069 rtmps_protocol_select="tls_protocol"
3070 rtmpt_protocol_select="ffrtmphttp_protocol"
3071 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
3072 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
3073 rtp_protocol_select="udp_protocol"
3074 sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
3075 sctp_protocol_select="network"
3076 srtp_protocol_select="rtp_protocol srtp"
3077 tcp_protocol_select="network"
3078 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
3079 tls_gnutls_protocol_select="tcp_protocol"
3080 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
3081 tls_openssl_protocol_select="tcp_protocol"
3082 tls_schannel_protocol_deps="schannel"
3083 tls_schannel_protocol_select="tcp_protocol"
3084 tls_securetransport_protocol_deps="securetransport"
3085 tls_securetransport_protocol_select="tcp_protocol"
3086 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
3087 udp_protocol_select="network"
3088 udplite_protocol_select="network"
3089 unix_protocol_deps="sys_un_h"
3090 unix_protocol_select="network"
3091
3092 # filters
3093 afftfilt_filter_deps="avcodec"
3094 afftfilt_filter_select="fft"
3095 amovie_filter_deps="avcodec avformat"
3096 aresample_filter_deps="swresample"
3097 ass_filter_deps="libass"
3098 asyncts_filter_deps="avresample"
3099 atempo_filter_deps="avcodec"
3100 atempo_filter_select="rdft"
3101 azmq_filter_deps="libzmq"
3102 blackframe_filter_deps="gpl"
3103 boxblur_filter_deps="gpl"
3104 bs2b_filter_deps="libbs2b"
3105 colormatrix_filter_deps="gpl"
3106 cover_rect_filter_deps="avcodec avformat gpl"
3107 cropdetect_filter_deps="gpl"
3108 deinterlace_qsv_filter_deps="libmfx"
3109 deinterlace_vaapi_filter_deps="vaapi"
3110 delogo_filter_deps="gpl"
3111 deshake_filter_select="pixelutils"
3112 drawtext_filter_deps="libfreetype"
3113 eq_filter_deps="gpl"
3114 fftfilt_filter_deps="avcodec"
3115 fftfilt_filter_select="rdft"
3116 find_rect_filter_deps="avcodec avformat gpl"
3117 firequalizer_filter_deps="avcodec"
3118 firequalizer_filter_select="rdft"
3119 flite_filter_deps="libflite"
3120 framerate_filter_select="pixelutils"
3121 frei0r_filter_deps="frei0r dlopen"
3122 frei0r_src_filter_deps="frei0r dlopen"
3123 fspp_filter_deps="gpl"
3124 geq_filter_deps="gpl"
3125 histeq_filter_deps="gpl"
3126 hqdn3d_filter_deps="gpl"
3127 interlace_filter_deps="gpl"
3128 kerndeint_filter_deps="gpl"
3129 ladspa_filter_deps="ladspa dlopen"
3130 mcdeint_filter_deps="avcodec gpl"
3131 movie_filter_deps="avcodec avformat"
3132 mpdecimate_filter_deps="gpl"
3133 mpdecimate_filter_select="pixelutils"
3134 mptestsrc_filter_deps="gpl"
3135 negate_filter_deps="lut_filter"
3136 nnedi_filter_deps="gpl"
3137 ocr_filter_deps="libtesseract"
3138 ocv_filter_deps="libopencv"
3139 owdenoise_filter_deps="gpl"
3140 pan_filter_deps="swresample"
3141 perspective_filter_deps="gpl"
3142 phase_filter_deps="gpl"
3143 pp7_filter_deps="gpl"
3144 pp_filter_deps="gpl postproc"
3145 pullup_filter_deps="gpl"
3146 removelogo_filter_deps="avcodec avformat swscale"
3147 repeatfields_filter_deps="gpl"
3148 resample_filter_deps="avresample"
3149 rubberband_filter_deps="librubberband"
3150 sab_filter_deps="gpl swscale"
3151 scale2ref_filter_deps="swscale"
3152 scale_filter_deps="swscale"
3153 scale_qsv_filter_deps="libmfx"
3154 select_filter_select="pixelutils"
3155 showcqt_filter_deps="avcodec avformat swscale"
3156 showcqt_filter_select="fft"
3157 showfreqs_filter_deps="avcodec"
3158 showfreqs_filter_select="fft"
3159 showspectrum_filter_deps="avcodec"
3160 showspectrum_filter_select="fft"
3161 showspectrumpic_filter_deps="avcodec"
3162 showspectrumpic_filter_select="fft"
3163 smartblur_filter_deps="gpl swscale"
3164 sofalizer_filter_deps="netcdf avcodec"
3165 sofalizer_filter_select="fft"
3166 spectrumsynth_filter_deps="avcodec"
3167 spectrumsynth_filter_select="fft"
3168 spp_filter_deps="gpl avcodec"
3169 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
3170 stereo3d_filter_deps="gpl"
3171 subtitles_filter_deps="avformat avcodec libass"
3172 super2xsai_filter_deps="gpl"
3173 pixfmts_super2xsai_test_deps="super2xsai_filter"
3174 tinterlace_filter_deps="gpl"
3175 tinterlace_merge_test_deps="tinterlace_filter"
3176 tinterlace_pad_test_deps="tinterlace_filter"
3177 uspp_filter_deps="gpl avcodec"
3178 vaguedenoiser_filter_deps="gpl"
3179 vidstabdetect_filter_deps="libvidstab"
3180 vidstabtransform_filter_deps="libvidstab"
3181 zmq_filter_deps="libzmq"
3182 zoompan_filter_deps="swscale"
3183 zscale_filter_deps="libzimg"
3184 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
3185
3186 # examples
3187 avio_dir_cmd_deps="avformat avutil"
3188 avio_reading_deps="avformat avcodec avutil"
3189 decoding_encoding_example_deps="avcodec avformat avutil"
3190 demuxing_decoding_example_deps="avcodec avformat avutil"
3191 extract_mvs_example_deps="avcodec avformat avutil"
3192 filter_audio_example_deps="avfilter avutil"
3193 filtering_audio_example_deps="avfilter avcodec avformat avutil"
3194 filtering_video_example_deps="avfilter avcodec avformat avutil"
3195 http_multiclient_example_deps="avformat avutil fork"
3196 metadata_example_deps="avformat avutil"
3197 muxing_example_deps="avcodec avformat avutil swscale"
3198 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
3199 remuxing_example_deps="avcodec avformat avutil"
3200 resampling_audio_example_deps="avutil swresample"
3201 scaling_video_example_deps="avutil swscale"
3202 transcode_aac_example_deps="avcodec avformat swresample"
3203 transcoding_example_deps="avfilter avcodec avformat avutil"
3204
3205 # libraries, in linking order
3206 avcodec_deps="avutil"
3207 avdevice_deps="avformat avcodec avutil"
3208 avfilter_deps="avutil"
3209 avformat_deps="avcodec avutil"
3210 avresample_deps="avutil"
3211 postproc_deps="avutil gpl"
3212 swresample_deps="avutil"
3213 swscale_deps="avutil"
3214
3215 # programs
3216 ffmpeg_deps="avcodec avfilter avformat swresample"
3217 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
3218                null_filter
3219                trim_filter"
3220 ffplay_deps="avcodec avformat swscale swresample sdl2"
3221 ffplay_libs='$sdl2_libs'
3222 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
3223 ffprobe_deps="avcodec avformat"
3224 ffserver_deps="avformat fork sarestart"
3225 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
3226
3227 # documentation
3228 podpages_deps="perl"
3229 manpages_deps="perl pod2man"
3230 htmlpages_deps="perl"
3231 htmlpages_deps_any="makeinfo_html texi2html"
3232 txtpages_deps="perl makeinfo"
3233 doc_deps_any="manpages htmlpages podpages txtpages"
3234
3235 # default parameters
3236
3237 logfile="config.log"
3238
3239 # installation paths
3240 prefix_default="/usr/local"
3241 bindir_default='${prefix}/bin'
3242 datadir_default='${prefix}/share/ffmpeg'
3243 docdir_default='${prefix}/share/doc/ffmpeg'
3244 incdir_default='${prefix}/include'
3245 libdir_default='${prefix}/lib'
3246 mandir_default='${prefix}/share/man'
3247
3248 # toolchain
3249 ar_default="ar"
3250 cc_default="gcc"
3251 cxx_default="g++"
3252 host_cc_default="gcc"
3253 cp_f="cp -f"
3254 doxygen_default="doxygen"
3255 install="install"
3256 ln_s_default="ln -s -f"
3257 nm_default="nm -g"
3258 objformat="elf"
3259 pkg_config_default=pkg-config
3260 ranlib_default="ranlib"
3261 strip_default="strip"
3262 version_script='--version-script'
3263 yasmexe_default="yasm"
3264 windres_default="windres"
3265
3266 # OS
3267 target_os_default=$(tolower $(uname -s))
3268 host_os=$target_os_default
3269
3270 # machine
3271 if test "$target_os_default" = aix; then
3272     arch_default=$(uname -p)
3273     strip_default="strip -X32_64"
3274 else
3275     arch_default=$(uname -m)
3276 fi
3277 cpu="generic"
3278 intrinsics="none"
3279
3280 # configurable options
3281 enable $PROGRAM_LIST
3282 enable $DOCUMENT_LIST
3283 enable $EXAMPLE_LIST
3284 enable $(filter_out avresample $LIBRARY_LIST)
3285 enable stripping
3286
3287 enable asm
3288 enable debug
3289 enable doc
3290 enable faan faandct faanidct
3291 enable optimizations
3292 enable runtime_cpudetect
3293 enable safe_bitstream_reader
3294 enable static
3295 enable swscale_alpha
3296 enable valgrind_backtrace
3297
3298 sws_max_filter_size_default=256
3299 set_default sws_max_filter_size
3300
3301 # build settings
3302 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3303 LIBPREF="lib"
3304 LIBSUF=".a"
3305 FULLNAME='$(NAME)$(BUILDSUF)'
3306 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3307 SLIBPREF="lib"
3308 SLIBSUF=".so"
3309 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3310 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3311 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3312 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3313 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3314 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3315 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
3316
3317 asflags_filter=echo
3318 cflags_filter=echo
3319 ldflags_filter=echo
3320
3321 AS_C='-c'
3322 AS_O='-o $@'
3323 CC_C='-c'
3324 CC_E='-E -o $@'
3325 CC_O='-o $@'
3326 CXX_C='-c'
3327 CXX_O='-o $@'
3328 OBJCC_C='-c'
3329 OBJCC_E='-E -o $@'
3330 OBJCC_O='-o $@'
3331 LD_O='-o $@'
3332 LD_LIB='-l%'
3333 LD_PATH='-L'
3334 HOSTCC_C='-c'
3335 HOSTCC_E='-E -o $@'
3336 HOSTCC_O='-o $@'
3337 HOSTLD_O='-o $@'
3338
3339 host_libs='-lm'
3340 host_cflags_filter=echo
3341 host_ldflags_filter=echo
3342
3343 target_path='$(CURDIR)'
3344
3345 # since the object filename is not given with the -MM flag, the compiler
3346 # is only able to print the basename, and we must add the path ourselves
3347 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3348 DEPFLAGS='-MM'
3349
3350 # find source path
3351 if test -f configure; then
3352     source_path=.
3353 else
3354     source_path=$(cd $(dirname "$0"); pwd)
3355     case "$source_path" in
3356         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3357     esac
3358     test -e "$source_path/config.h" &&
3359         die "Out of tree builds are impossible with config.h in source dir."
3360 fi
3361
3362 for v in "$@"; do
3363     r=${v#*=}
3364     l=${v%"$r"}
3365     r=$(sh_quote "$r")
3366     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3367 done
3368
3369 find_things(){
3370     thing=$1
3371     pattern=$2
3372     file=$source_path/$3
3373     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3374 }
3375
3376 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3377 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3378 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3379 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3380 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3381 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3382 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3383 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3384 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3385
3386 find_things_extern(){
3387     thing=$1
3388     pattern=$2
3389     file=$source_path/$3
3390     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
3391 }
3392
3393 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
3394 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
3395
3396 ALL_COMPONENTS="
3397     $BSF_LIST
3398     $DECODER_LIST
3399     $DEMUXER_LIST
3400     $ENCODER_LIST
3401     $FILTER_LIST
3402     $HWACCEL_LIST
3403     $INDEV_LIST
3404     $MUXER_LIST
3405     $OUTDEV_LIST
3406     $PARSER_LIST
3407     $PROTOCOL_LIST
3408 "
3409
3410 for n in $COMPONENT_LIST; do
3411     v=$(toupper ${n%s})_LIST
3412     eval enable \$$v
3413     eval ${n}_if_any="\$$v"
3414 done
3415
3416 enable $ARCH_EXT_LIST
3417
3418 die_unknown(){
3419     echo "Unknown option \"$1\"."
3420     echo "See $0 --help for available options."
3421     exit 1
3422 }
3423
3424 print_in_columns() {
3425     cols=$(expr $ncols / 24)
3426     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3427 }
3428
3429 show_list() {
3430     suffix=_$1
3431     shift
3432     echo $* | sed s/$suffix//g | print_in_columns
3433     exit 0
3434 }
3435
3436 rand_list(){
3437     IFS=', '
3438     set -- $*
3439     unset IFS
3440     for thing; do
3441         comp=${thing%:*}
3442         prob=${thing#$comp}
3443         prob=${prob#:}
3444         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3445         echo "prob ${prob:-0.5}"
3446         printf '%s\n' $comp
3447     done
3448 }
3449
3450 do_random(){
3451     action=$1
3452     shift
3453     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3454     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3455 }
3456
3457 for opt do
3458     optval="${opt#*=}"
3459     case "$opt" in
3460         --extra-ldflags=*)
3461             add_ldflags $optval
3462         ;;
3463         --extra-ldexeflags=*)
3464             add_ldexeflags $optval
3465         ;;
3466         --extra-ldlibflags=*)
3467             add_ldlibflags $optval
3468         ;;
3469         --extra-libs=*)
3470             add_extralibs $optval
3471         ;;
3472         --disable-devices)
3473             disable $INDEV_LIST $OUTDEV_LIST
3474         ;;
3475         --enable-debug=*)
3476             debuglevel="$optval"
3477         ;;
3478         --disable-programs)
3479             disable $PROGRAM_LIST
3480         ;;
3481         --disable-everything)
3482             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3483         ;;
3484         --disable-all)
3485             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3486             disable $LIBRARY_LIST $PROGRAM_LIST doc
3487             enable avutil
3488         ;;
3489         --enable-random|--disable-random)
3490             action=${opt%%-random}
3491             do_random ${action#--} $COMPONENT_LIST
3492         ;;
3493         --enable-random=*|--disable-random=*)
3494             action=${opt%%-random=*}
3495             do_random ${action#--} $optval
3496         ;;
3497         --enable-*=*|--disable-*=*)
3498             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3499             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3500             eval list=\$$(toupper $thing)_LIST
3501             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3502             list=$(filter "$name" $list)
3503             [ "$list" = "" ] && warn "Option $opt did not match anything"
3504             $action $list
3505         ;;
3506         --enable-?*|--disable-?*)
3507             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3508             if is_in $option $COMPONENT_LIST; then
3509                 test $action = disable && action=unset
3510                 eval $action \$$(toupper ${option%s})_LIST
3511             elif is_in $option $CMDLINE_SELECT; then
3512                 $action $option
3513             else
3514                 die_unknown $opt
3515             fi
3516         ;;
3517         --list-*)
3518             NAME="${opt#--list-}"
3519             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3520             NAME=${NAME%s}
3521             eval show_list $NAME \$$(toupper $NAME)_LIST
3522         ;;
3523         --help|-h) show_help
3524         ;;
3525         --fatal-warnings) enable fatal_warnings
3526         ;;
3527         *)
3528             optname="${opt%%=*}"
3529             optname="${optname#--}"
3530             optname=$(echo "$optname" | sed 's/-/_/g')
3531             if is_in $optname $CMDLINE_SET; then
3532                 eval $optname='$optval'
3533             elif is_in $optname $CMDLINE_APPEND; then
3534                 append $optname "$optval"
3535             else
3536                 die_unknown $opt
3537             fi
3538         ;;
3539     esac
3540 done
3541
3542 for e in $env; do
3543     eval "export $e"
3544 done
3545
3546 # Mark specifically enabled, but normally autodetected libraries as requested.
3547 for lib in $AUTODETECT_LIBS; do
3548     enabled $lib && request $lib
3549 done
3550
3551 # Enable platform codecs by default.
3552 enable_weak audiotoolbox
3553
3554 # Enable hwaccels by default.
3555 enable_weak d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
3556 enable_weak xlib
3557
3558 enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
3559
3560 disabled logging && logfile=/dev/null
3561
3562 # Disable all the library-specific components if the library itself
3563 # is disabled, see AVCODEC_LIST and following _LIST variables.
3564
3565 disable_components(){
3566     disabled ${1} && disable $(
3567         eval components="\$$(toupper ${1})_COMPONENTS"
3568         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3569     )
3570 }
3571
3572 map 'disable_components $v' $LIBRARY_LIST
3573
3574 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3575 set >> $logfile
3576
3577 test -n "$valgrind" && toolchain="valgrind-memcheck"
3578
3579 case "$toolchain" in
3580     *-asan)
3581         cc_default="${toolchain%-asan}"
3582         add_cflags  -fsanitize=address
3583         add_ldflags -fsanitize=address
3584     ;;
3585     *-msan)
3586         cc_default="${toolchain%-msan}"
3587         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
3588         add_ldflags -fsanitize=memory
3589     ;;
3590     *-tsan)
3591         cc_default="${toolchain%-tsan}"
3592         add_cflags  -fsanitize=thread -fPIE
3593         add_ldflags -fsanitize=thread -pie
3594         case "$toolchain" in
3595             gcc-tsan)
3596                 add_cflags  -fPIC
3597                 add_ldflags -fPIC
3598                 ;;
3599         esac
3600     ;;
3601     *-usan)
3602         cc_default="${toolchain%-usan}"
3603         add_cflags  -fsanitize=undefined
3604         add_ldflags -fsanitize=undefined
3605     ;;
3606     valgrind-*)
3607         target_exec_default="valgrind"
3608         case "$toolchain" in
3609             valgrind-massif)
3610                 target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
3611                 ;;
3612             valgrind-memcheck)
3613                 target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3614                 ;;
3615         esac
3616     ;;
3617     msvc)
3618         # Check whether the current MSVC version needs the C99 converter.
3619         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3620         # support enough of C99 to build ffmpeg. Default to the new
3621         # behaviour if the regexp was unable to match anything, since this
3622         # successfully parses the version number of existing supported
3623         # versions that require the converter (MSVC 2010 and 2012).
3624         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3625         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3626             cc_default="cl"
3627         else
3628             cc_default="c99wrap cl"
3629         fi
3630         ld_default="$source_path/compat/windows/mslink"
3631         nm_default="dumpbin -symbols"
3632         ar_default="lib"
3633         case "$arch" in
3634         arm*)
3635             as_default="armasm"
3636             ;;
3637         esac
3638         target_os_default="win32"
3639         # Use a relative path for TMPDIR. This makes sure all the
3640         # ffconf temp files are written with a relative path, avoiding
3641         # issues with msys/win32 path conversion for MSVC parameters
3642         # such as -Fo<file> or -out:<file>.
3643         TMPDIR=.
3644     ;;
3645     icl)
3646         cc_default="icl"
3647         ld_default="xilink"
3648         nm_default="dumpbin -symbols"
3649         ar_default="xilib"
3650         target_os_default="win32"
3651         TMPDIR=.
3652     ;;
3653     gcov)
3654         add_cflags  -fprofile-arcs -ftest-coverage
3655         add_ldflags -fprofile-arcs -ftest-coverage
3656     ;;
3657     llvm-cov)
3658         add_cflags -fprofile-arcs -ftest-coverage
3659         add_ldflags --coverage
3660     ;;
3661     hardened)
3662         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3663         add_cflags   -fno-strict-overflow -fstack-protector-all
3664         add_ldflags  -Wl,-z,relro -Wl,-z,now
3665         add_cflags   -fPIE
3666         add_ldexeflags -fPIE -pie
3667     ;;
3668     ?*)
3669         die "Unknown toolchain $toolchain"
3670     ;;
3671 esac
3672
3673 test -n "$cross_prefix" && enable cross_compile
3674
3675 if enabled cross_compile; then
3676     test -n "$arch" && test -n "$target_os" ||
3677         die "Must specify target arch and OS when cross-compiling"
3678 fi
3679
3680 ar_default="${cross_prefix}${ar_default}"
3681 cc_default="${cross_prefix}${cc_default}"
3682 cxx_default="${cross_prefix}${cxx_default}"
3683 nm_default="${cross_prefix}${nm_default}"
3684 pkg_config_default="${cross_prefix}${pkg_config_default}"
3685 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3686     ranlib_default="${cross_prefix}${ranlib_default} -D"
3687 else
3688     ranlib_default="${cross_prefix}${ranlib_default}"
3689 fi
3690 strip_default="${cross_prefix}${strip_default}"
3691 windres_default="${cross_prefix}${windres_default}"
3692
3693 sysinclude_default="${sysroot}/usr/include"
3694
3695 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3696     target_exec target_os yasmexe
3697 enabled cross_compile || host_cc_default=$cc
3698 set_default host_cc
3699
3700 pkg_config_fail_message=""
3701 if ! $pkg_config --version >/dev/null 2>&1; then
3702     warn "$pkg_config not found, library detection may fail."
3703     pkg_config=false
3704 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3705     pkg_config_fail_message="
3706 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3707 fi
3708
3709 if test $doxygen != $doxygen_default && \
3710   ! $doxygen --version >/dev/null 2>&1; then
3711     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3712 fi
3713
3714 exesuf() {
3715     case $1 in
3716         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3717     esac
3718 }
3719
3720 EXESUF=$(exesuf $target_os)
3721 HOSTEXESUF=$(exesuf $host_os)
3722
3723 # set temporary file name
3724 : ${TMPDIR:=$TEMPDIR}
3725 : ${TMPDIR:=$TMP}
3726 : ${TMPDIR:=/tmp}
3727
3728 if [ -n "$tempprefix" ] ; then
3729     mktemp(){
3730         echo $tempprefix.${HOSTNAME}.${UID}
3731     }
3732 elif ! check_cmd mktemp -u XXXXXX; then
3733     # simple replacement for missing mktemp
3734     # NOT SAFE FOR GENERAL USE
3735     mktemp(){
3736         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3737     }
3738 fi
3739
3740 tmpfile(){
3741     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3742         (set -C; exec > $tmp) 2>/dev/null ||
3743         die "Unable to create temporary file in $TMPDIR."
3744     append TMPFILES $tmp
3745     eval $1=$tmp
3746 }
3747
3748 trap 'rm -f -- $TMPFILES' EXIT
3749
3750 tmpfile TMPASM .asm
3751 tmpfile TMPC   .c
3752 tmpfile TMPCPP .cpp
3753 tmpfile TMPE   $EXESUF
3754 tmpfile TMPH   .h
3755 tmpfile TMPM   .m
3756 tmpfile TMPO   .o
3757 tmpfile TMPS   .S
3758 tmpfile TMPSH  .sh
3759 tmpfile TMPV   .ver
3760
3761 unset -f mktemp
3762
3763 chmod +x $TMPE
3764
3765 # make sure we can execute files in $TMPDIR
3766 cat > $TMPSH 2>> $logfile <<EOF
3767 #! /bin/sh
3768 EOF
3769 chmod +x $TMPSH >> $logfile 2>&1
3770 if ! $TMPSH >> $logfile 2>&1; then
3771     cat <<EOF
3772 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3773 variable to another directory and make sure that it is not mounted noexec.
3774 EOF
3775     die "Sanity test failed."
3776 fi
3777
3778 armasm_flags(){
3779     for flag; do
3780         case $flag in
3781             # Filter out MSVC cl.exe options from cflags that shouldn't
3782             # be passed to gas-preprocessor
3783             -M[TD]*)                                            ;;
3784             *)                  echo $flag                      ;;
3785         esac
3786    done
3787 }
3788
3789 ccc_flags(){
3790     for flag; do
3791         case $flag in
3792             -std=c99)           echo -c99                       ;;
3793             -mcpu=*)            echo -arch ${flag#*=}           ;;
3794             -mieee)             echo -ieee                      ;;
3795             -O*|-fast)          echo $flag                      ;;
3796             -fno-math-errno)    echo -assume nomath_errno       ;;
3797             -g)                 echo -g3                        ;;
3798             -Wall)              echo -msg_enable level2         ;;
3799             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3800             -Wl,*)              echo $flag                      ;;
3801             -f*|-W*)                                            ;;
3802             *)                  echo $flag                      ;;
3803         esac
3804    done
3805 }
3806
3807 cparser_flags(){
3808     for flag; do
3809         case $flag in
3810             -Wno-switch)             echo -Wno-switch-enum ;;
3811             -Wno-format-zero-length) ;;
3812             -Wdisabled-optimization) ;;
3813             -Wno-pointer-sign)       echo -Wno-other ;;
3814             *)                       echo $flag ;;
3815         esac
3816     done
3817 }
3818
3819 msvc_common_flags(){
3820     for flag; do
3821         case $flag in
3822             # In addition to specifying certain flags under the compiler
3823             # specific filters, they must be specified here as well or else the
3824             # generic catch all at the bottom will print the original flag.
3825             -Wall)                ;;
3826             -std=c99)             ;;
3827             # Common flags
3828             -fomit-frame-pointer) ;;
3829             -g)                   echo -Z7 ;;
3830             -fno-math-errno)      ;;
3831             -fno-common)          ;;
3832             -fno-signed-zeros)    ;;
3833             -fPIC)                ;;
3834             -mthumb)              ;;
3835             -march=*)             ;;
3836             -lz)                  echo zlib.lib ;;
3837             -lavifil32)           echo vfw32.lib ;;
3838             -lavicap32)           echo vfw32.lib user32.lib ;;
3839             -lx264)               echo libx264.lib ;;
3840             -l*)                  echo ${flag#-l}.lib ;;
3841             -LARGEADDRESSAWARE)   echo $flag ;;
3842             -L*)                  echo -libpath:${flag#-L} ;;
3843             *)                    echo $flag ;;
3844         esac
3845     done
3846 }
3847
3848 msvc_flags(){
3849     msvc_common_flags "$@"
3850     for flag; do
3851         case $flag in
3852             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3853                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3854                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3855                                        -wd4307 \
3856                                        -wd4273 -wd4554 -wd4701 ;;
3857         esac
3858     done
3859 }
3860
3861 icl_flags(){
3862     msvc_common_flags "$@"
3863     for flag; do
3864         case $flag in
3865             # Despite what Intel's documentation says -Wall, which is supported
3866             # on Windows, does enable remarks so disable them here.
3867             -Wall)                echo $flag -Qdiag-disable:remark ;;
3868             -std=c99)             echo -Qstd=c99 ;;
3869             -flto)                echo -ipo ;;
3870         esac
3871     done
3872 }
3873
3874 icc_flags(){
3875     for flag; do
3876         case $flag in
3877             -flto)                echo -ipo ;;
3878             *)                    echo $flag ;;
3879         esac
3880     done
3881 }
3882
3883 pgi_flags(){
3884     for flag; do
3885         case $flag in
3886             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3887             -fomit-frame-pointer) echo -Mnoframe ;;
3888             -g)                   echo -gopt ;;
3889             *)                    echo $flag ;;
3890         esac
3891     done
3892 }
3893
3894 suncc_flags(){
3895     for flag; do
3896         case $flag in
3897             -march=*|-mcpu=*)
3898                 case "${flag#*=}" in
3899                     native)                   echo -xtarget=native       ;;
3900                     v9|niagara)               echo -xarch=sparc          ;;
3901                     ultrasparc)               echo -xarch=sparcvis       ;;
3902                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3903                     i586|pentium)             echo -xchip=pentium        ;;
3904                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3905                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3906                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3907                     pentium4*)          echo -xtarget=pentium4           ;;
3908                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3909                     *-sse3)             echo -xarch=sse3                 ;;
3910                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3911                     bonnell)                   echo -xarch=ssse3         ;;
3912                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3913                     westmere)                  echo -xtarget=westmere    ;;
3914                     silvermont)                echo -xarch=sse4_2        ;;
3915                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3916                     core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
3917                                                echo -xarch=avx           ;;
3918                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3919                     btver1)                    echo -xarch=amdsse4a      ;;
3920                     btver2|bdver*|znver*)      echo -xarch=avx           ;;
3921                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3922                     k8|opteron|athlon64|athlon-fx)
3923                                                echo -xarch=sse2a         ;;
3924                     athlon*)                   echo -xarch=pentium_proa  ;;
3925                 esac
3926                 ;;
3927             -std=c99)             echo -xc99              ;;
3928             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3929             -fPIC)                echo -KPIC -xcode=pic32 ;;
3930             -W*,*)                echo $flag              ;;
3931             -f*-*|-W*|-mimpure-text)                      ;;
3932             -shared)              echo -G                 ;;
3933             *)                    echo $flag              ;;
3934         esac
3935     done
3936 }
3937
3938 tms470_flags(){
3939     for flag; do
3940         case $flag in
3941             -march=*|-mcpu=*)
3942                 case "${flag#*=}" in
3943                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3944                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3945                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3946                     armv6*|arm11*)          echo -mv=6   ;;
3947                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3948                                             echo -mv=5e  ;;
3949                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3950                 esac
3951                 ;;
3952             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3953             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3954             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3955             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3956             -msoft-float)   echo --float_support=vfplib       ;;
3957             -O[0-3]|-mf=*)  echo $flag                        ;;
3958             -g)             echo -g -mn                       ;;
3959             -pds=*)         echo $flag                        ;;
3960             -D*|-I*)        echo $flag                        ;;
3961             --gcc|--abi=*)  echo $flag                        ;;
3962             -me)            echo $flag                        ;;
3963         esac
3964     done
3965 }
3966
3967 probe_cc(){
3968     pfx=$1
3969     _cc=$2
3970     first=$3
3971
3972     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3973     unset _ld_o _ldflags _ld_lib _ld_path
3974     unset _depflags _DEPCMD _DEPFLAGS
3975     _flags_filter=echo
3976
3977     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3978         true # no-op to avoid reading stdin in following checks
3979     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3980         _type=llvm_gcc
3981         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3982         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3983         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3984         _cflags_speed='-O3'
3985         _cflags_size='-Os'
3986     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3987         _type=gcc
3988         gcc_version=$($_cc --version | head -n1)
3989         gcc_basever=$($_cc -dumpversion)
3990         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3991         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3992         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3993         case $gcc_basever in
3994             2) ;;
3995             2.*) ;;
3996             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3997         esac
3998         if [ "$first" = true ]; then
3999             case $gcc_basever in
4000                 4.2*)
4001                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
4002             esac
4003         fi
4004         _cflags_speed='-O3'
4005         _cflags_size='-Os'
4006     elif $_cc --version 2>/dev/null | grep -q ^icc; then
4007         _type=icc
4008         _ident=$($_cc --version | head -n1)
4009         _depflags='-MMD'
4010         _cflags_speed='-O3'
4011         _cflags_size='-Os'
4012         _cflags_noopt='-O1'
4013         _flags_filter=icc_flags
4014     elif $_cc -v 2>&1 | grep -q xlc; then
4015         _type=xlc
4016         _ident=$($_cc -qversion 2>/dev/null | head -n1)
4017         _cflags_speed='-O5'
4018         _cflags_size='-O5 -qcompact'
4019     elif $_cc -V 2>/dev/null | grep -q Compaq; then
4020         _type=ccc
4021         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
4022         _DEPFLAGS='-M'
4023         _cflags_speed='-fast'
4024         _cflags_size='-O1'
4025         _flags_filter=ccc_flags
4026     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
4027         test -d "$sysroot" || die "No valid sysroot specified."
4028         _type=armcc
4029         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
4030         armcc_conf="$PWD/armcc.conf"
4031         $_cc --arm_linux_configure                 \
4032              --arm_linux_config_file="$armcc_conf" \
4033              --configure_sysroot="$sysroot"        \
4034              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
4035              die "Error creating armcc configuration file."
4036         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
4037         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
4038         as_default="${cross_prefix}gcc"
4039         _depflags='-MMD'
4040         _cflags_speed='-O3'
4041         _cflags_size='-Os'
4042     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
4043         _type=tms470
4044         _ident=$($_cc -version | head -n1 | tr -s ' ')
4045         _flags='--gcc --abi=eabi -me'
4046         _cc_e='-ppl -fe=$@'
4047         _cc_o='-fe=$@'
4048         _depflags='-ppa -ppd=$(@:.o=.d)'
4049         _cflags_speed='-O3 -mf=5'
4050         _cflags_size='-O3 -mf=2'
4051         _flags_filter=tms470_flags
4052     elif $_cc -v 2>&1 | grep -q clang; then
4053         _type=clang
4054         _ident=$($_cc --version 2>/dev/null | head -n1)
4055         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4056         _cflags_speed='-O3'
4057         _cflags_size='-Oz'
4058     elif $_cc -V 2>&1 | grep -q Sun; then
4059         _type=suncc
4060         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
4061         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
4062         _DEPFLAGS='-xM1 -xc99'
4063         _ldflags='-std=c99'
4064         _cflags_speed='-O5'
4065         _cflags_size='-O5 -xspace'
4066         _flags_filter=suncc_flags
4067     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
4068         _type=pathscale
4069         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
4070         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
4071         _cflags_speed='-O2'
4072         _cflags_size='-Os'
4073         _flags_filter='filter_out -Wdisabled-optimization'
4074     elif $_cc -v 2>&1 | grep -q Open64; then
4075         _type=open64
4076         _ident=$($_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|-Wtype-limits|-fno-signed-zeros'
4081     elif $_cc -V 2>&1 | grep -q Portland; then
4082         _type=pgi
4083         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
4084         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
4085         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
4086         _cflags_size="-O2 -Munroll=c:1 $opt_common"
4087         _cflags_noopt="-O"
4088         _flags_filter=pgi_flags
4089     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
4090         _type=armasm
4091         _ident=$($_cc | head -n1)
4092         # 4509: "This form of conditional instruction is deprecated"
4093         _flags="-nologo -ignore 4509"
4094         _flags_filter=armasm_flags
4095     elif $_cc 2>&1 | grep -q Intel; then
4096         _type=icl
4097         _ident=$($_cc 2>&1 | head -n1)
4098         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
4099         # Not only is O3 broken on 13.x+ but it is slower on all previous
4100         # versions (tested) as well.
4101         _cflags_speed="-O2"
4102         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
4103         if $_cc 2>&1 | grep -q Linker; then
4104             _ld_o='-out:$@'
4105         else
4106             _ld_o='-Fe$@'
4107         fi
4108         _cc_o='-Fo$@'
4109         _cc_e='-P'
4110         _flags_filter=icl_flags
4111         _ld_lib='lib%.a'
4112         _ld_path='-libpath:'
4113         # -Qdiag-error to make icl error when seeing certain unknown arguments
4114         _flags='-nologo -Qdiag-error:4044,10157'
4115         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
4116         # with MSVC which enables it by default.
4117         _cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
4118         disable stripping
4119     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
4120         # lld can emulate multiple different linkers; in ms link.exe mode,
4121         # the -? parameter gives the help output which contains an identifyable
4122         # string, while it gives an error in other modes.
4123         _type=lld-link
4124         # The link.exe mode doesn't have a switch for getting the version,
4125         # but we can force it back to gnu mode and get the version from there.
4126         _ident=$($_cc -flavor gnu --version)
4127         _ld_o='-out:$@'
4128         _flags_filter=msvc_flags
4129         _ld_lib='lib%.a'
4130         _ld_path='-libpath:'
4131     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
4132         _type=msvc
4133         _ident=$($_cc 2>&1 | head -n1)
4134         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
4135         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
4136         _cflags_speed="-O2"
4137         _cflags_size="-O1"
4138         if $_cc -nologo- 2>&1 | grep -q Linker; then
4139             _ld_o='-out:$@'
4140         else
4141             _ld_o='-Fe$@'
4142         fi
4143         _cc_o='-Fo$@'
4144         _cc_e='-P -Fi$@'
4145         _flags_filter=msvc_flags
4146         _ld_lib='lib%.a'
4147         _ld_path='-libpath:'
4148         _flags='-nologo'
4149         disable stripping
4150     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
4151         _type=cparser
4152         _ident=$($_cc --version | head -n1)
4153         _depflags='-MMD'
4154         _cflags_speed='-O4'
4155         _cflags_size='-O2'
4156         _flags_filter=cparser_flags
4157     fi
4158
4159     eval ${pfx}_type=\$_type
4160     eval ${pfx}_ident=\$_ident
4161 }
4162
4163 set_ccvars(){
4164     eval ${1}_C=\${_cc_c-\${${1}_C}}
4165     eval ${1}_E=\${_cc_e-\${${1}_E}}
4166     eval ${1}_O=\${_cc_o-\${${1}_O}}
4167
4168     if [ -n "$_depflags" ]; then
4169         eval ${1}_DEPFLAGS=\$_depflags
4170     else
4171         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
4172         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
4173         eval DEP${1}FLAGS=\$_flags
4174     fi
4175 }
4176
4177 probe_cc cc "$cc" "true"
4178 cflags_filter=$_flags_filter
4179 cflags_speed=$_cflags_speed
4180 cflags_size=$_cflags_size
4181 cflags_noopt=$_cflags_noopt
4182 add_cflags $_flags $_cflags
4183 cc_ldflags=$_ldflags
4184 set_ccvars CC
4185
4186 probe_cc hostcc "$host_cc"
4187 host_cflags_filter=$_flags_filter
4188 add_host_cflags  $_flags $_cflags
4189 set_ccvars HOSTCC
4190
4191 test -n "$cc_type" && enable $cc_type ||
4192     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
4193
4194 : ${as_default:=$cc}
4195 : ${objcc_default:=$cc}
4196 : ${dep_cc_default:=$cc}
4197 : ${ld_default:=$cc}
4198 : ${host_ld_default:=$host_cc}
4199 set_default ar as objcc dep_cc ld ln_s host_ld windres
4200
4201 probe_cc as "$as"
4202 asflags_filter=$_flags_filter
4203 add_asflags $_flags $_cflags
4204 set_ccvars AS
4205
4206 probe_cc objcc "$objcc"
4207 objcflags_filter=$_flags_filter
4208 add_objcflags $_flags $_cflags
4209 set_ccvars OBJC
4210
4211 probe_cc ld "$ld"
4212 ldflags_filter=$_flags_filter
4213 add_ldflags $_flags $_ldflags
4214 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
4215 LD_O=${_ld_o-$LD_O}
4216 LD_LIB=${_ld_lib-$LD_LIB}
4217 LD_PATH=${_ld_path-$LD_PATH}
4218
4219 probe_cc hostld "$host_ld"
4220 host_ldflags_filter=$_flags_filter
4221 add_host_ldflags $_flags $_ldflags
4222 HOSTLD_O=${_ld_o-$HOSTLD_O}
4223
4224 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
4225     probe_cc depcc "$dep_cc"
4226     CCDEP=${_DEPCMD:-$DEPCMD}
4227     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
4228     DEPCCFLAGS=$_flags
4229 fi
4230
4231 if $ar 2>&1 | grep -q Microsoft; then
4232     arflags="-nologo"
4233     ar_o='-out:$@'
4234 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
4235     arflags="rq"
4236     ar_o='$@'
4237 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
4238     arflags='-Xany -r -c'
4239     ar_o='$@'
4240 elif $ar 2>&1 | grep -q "\[D\] "; then
4241     arflags="rcD"
4242     ar_o='$@'
4243 else
4244     arflags="rc"
4245     ar_o='$@'
4246 fi
4247
4248 add_cflags $extra_cflags
4249 add_cxxflags $extra_cxxflags
4250 add_objcflags $extra_objcflags
4251 add_asflags $extra_cflags
4252
4253 if test -n "$sysroot"; then
4254     case "$cc_type" in
4255         gcc|llvm_gcc|clang)
4256             add_cppflags --sysroot="$sysroot"
4257             add_ldflags --sysroot="$sysroot"
4258 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
4259             add_cppflags -isysroot "$sysroot"
4260             add_ldflags -isysroot "$sysroot"
4261         ;;
4262         tms470)
4263             add_cppflags -I"$sysinclude"
4264             add_ldflags  --sysroot="$sysroot"
4265         ;;
4266     esac
4267 fi
4268
4269 if test "$cpu" = host; then
4270     enabled cross_compile &&
4271         die "--cpu=host makes no sense when cross-compiling."
4272
4273     case "$cc_type" in
4274         gcc|llvm_gcc)
4275             check_native(){
4276                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4277                 sed -n "/cc1.*$1=/{
4278                             s/.*$1=\\([^ ]*\\).*/\\1/
4279                             p
4280                             q
4281                         }" $TMPE
4282             }
4283             cpu=$(check_native -march || check_native -mcpu)
4284         ;;
4285         clang)
4286             check_native(){
4287                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
4288                 sed -n "/cc1.*-target-cpu /{
4289                             s/.*-target-cpu \\([^ ]*\\).*/\\1/
4290                             p
4291                             q
4292                         }" $TMPE
4293             }
4294             cpu=$(check_native -march)
4295         ;;
4296     esac
4297
4298     test "${cpu:-host}" = host &&
4299         die "--cpu=host not supported with compiler $cc"
4300 fi
4301
4302 # Deal with common $arch aliases
4303 case "$arch" in
4304     aarch64|arm64)
4305         arch="aarch64"
4306     ;;
4307     arm*|iPad*|iPhone*)
4308         arch="arm"
4309     ;;
4310     mips*|IP*)
4311         case "$arch" in
4312         *el)
4313             add_cppflags -EL
4314             add_ldflags -EL
4315         ;;
4316         *eb)
4317             add_cppflags -EB
4318             add_ldflags -EB
4319         ;;
4320         esac
4321         arch="mips"
4322     ;;
4323     parisc*|hppa*)
4324         arch="parisc"
4325     ;;
4326     "Power Macintosh"|ppc*|powerpc*)
4327         arch="ppc"
4328     ;;
4329     s390|s390x)
4330         arch="s390"
4331     ;;
4332     sh4|sh)
4333         arch="sh4"
4334     ;;
4335     sun4*|sparc*)
4336         arch="sparc"
4337     ;;
4338     tilegx|tile-gx)
4339         arch="tilegx"
4340     ;;
4341     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4342         arch="x86"
4343     ;;
4344 esac
4345
4346 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4347 enable $arch
4348
4349 # Add processor-specific flags
4350 if enabled aarch64; then
4351
4352     case $cpu in
4353         armv*)
4354             cpuflags="-march=$cpu"
4355         ;;
4356         *)
4357             cpuflags="-mcpu=$cpu"
4358         ;;
4359     esac
4360
4361 elif enabled alpha; then
4362
4363     cpuflags="-mcpu=$cpu"
4364
4365 elif enabled arm; then
4366
4367     check_arm_arch() {
4368         check_cpp_condition stddef.h \
4369             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4370             $cpuflags
4371     }
4372
4373     probe_arm_arch() {
4374         if   check_arm_arch 4;        then echo armv4
4375         elif check_arm_arch 4T;       then echo armv4t
4376         elif check_arm_arch 5;        then echo armv5
4377         elif check_arm_arch 5E;       then echo armv5e
4378         elif check_arm_arch 5T;       then echo armv5t
4379         elif check_arm_arch 5TE;      then echo armv5te
4380         elif check_arm_arch 5TEJ;     then echo armv5te
4381         elif check_arm_arch 6;        then echo armv6
4382         elif check_arm_arch 6J;       then echo armv6j
4383         elif check_arm_arch 6K;       then echo armv6k
4384         elif check_arm_arch 6Z;       then echo armv6z
4385         elif check_arm_arch 6ZK;      then echo armv6zk
4386         elif check_arm_arch 6T2;      then echo armv6t2
4387         elif check_arm_arch 7;        then echo armv7
4388         elif check_arm_arch 7A  7_A;  then echo armv7-a
4389         elif check_arm_arch 7S;       then echo armv7-a
4390         elif check_arm_arch 7R  7_R;  then echo armv7-r
4391         elif check_arm_arch 7M  7_M;  then echo armv7-m
4392         elif check_arm_arch 7EM 7E_M; then echo armv7-m
4393         elif check_arm_arch 8A  8_A;  then echo armv8-a
4394         fi
4395     }
4396
4397     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4398
4399     case $cpu in
4400         armv*)
4401             cpuflags="-march=$cpu"
4402             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4403         ;;
4404         *)
4405             cpuflags="-mcpu=$cpu"
4406             case $cpu in
4407                 cortex-a*)                               subarch=armv7a  ;;
4408                 cortex-r*)                               subarch=armv7r  ;;
4409                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4410                 arm11*)                                  subarch=armv6   ;;
4411                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4412                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4413                 *)                             subarch=$(probe_arm_arch) ;;
4414             esac
4415         ;;
4416     esac
4417
4418     case "$subarch" in
4419         armv5t*)    enable fast_clz                ;;
4420         armv[6-8]*)
4421             enable fast_clz
4422             disabled fast_unaligned || enable fast_unaligned
4423             ;;
4424     esac
4425
4426 elif enabled avr32; then
4427
4428     case $cpu in
4429         ap7[02]0[0-2])
4430             subarch="avr32_ap"
4431             cpuflags="-mpart=$cpu"
4432         ;;
4433         ap)
4434             subarch="avr32_ap"
4435             cpuflags="-march=$cpu"
4436         ;;
4437         uc3[ab]*)
4438             subarch="avr32_uc"
4439             cpuflags="-mcpu=$cpu"
4440         ;;
4441         uc)
4442             subarch="avr32_uc"
4443             cpuflags="-march=$cpu"
4444         ;;
4445     esac
4446
4447 elif enabled bfin; then
4448
4449     cpuflags="-mcpu=$cpu"
4450
4451 elif enabled mips; then
4452
4453     cpuflags="-march=$cpu"
4454
4455     if [ "$cpu" != "generic" ]; then
4456         disable mips32r2
4457         disable mips32r5
4458         disable mips64r2
4459         disable mips32r6
4460         disable mips64r6
4461         disable loongson2
4462         disable loongson3
4463
4464         case $cpu in
4465             24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
4466                 enable mips32r2
4467                 disable msa
4468             ;;
4469             p5600|i6400|p6600)
4470                 disable mipsdsp
4471                 disable mipsdspr2
4472             ;;
4473             loongson*)
4474                 enable loongson2
4475                 enable loongson3
4476                 enable local_aligned_8 local_aligned_16 local_aligned_32
4477                 enable simd_align_16
4478                 enable fast_64bit
4479                 enable fast_clz
4480                 enable fast_cmov
4481                 enable fast_unaligned
4482                 disable aligned_stack
4483                 disable mipsfpu
4484                 disable mipsdsp
4485                 disable mipsdspr2
4486                 case $cpu in
4487                     loongson3*)
4488                         cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4489                     ;;
4490                     loongson2e)
4491                         cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4492                     ;;
4493                     loongson2f)
4494                         cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4495                     ;;
4496                 esac
4497             ;;
4498             *)
4499                 # Unknown CPU. Disable everything.
4500                 warn "unknown CPU. Disabling all MIPS optimizations."
4501                 disable mipsfpu
4502                 disable mipsdsp
4503                 disable mipsdspr2
4504                 disable msa
4505                 disable mmi
4506             ;;
4507         esac
4508
4509         case $cpu in
4510             24kc)
4511                 disable mipsfpu
4512                 disable mipsdsp
4513                 disable mipsdspr2
4514             ;;
4515             24kf*)
4516                 disable mipsdsp
4517                 disable mipsdspr2
4518             ;;
4519             24kec|34kc|1004kc)
4520                 disable mipsfpu
4521                 disable mipsdspr2
4522             ;;
4523             24kef*|34kf*|1004kf*)
4524                 disable mipsdspr2
4525             ;;
4526             74kc)
4527                 disable mipsfpu
4528             ;;
4529             p5600)
4530                 enable mips32r5
4531                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
4532             ;;
4533             i6400)
4534                 enable mips64r6
4535                 check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4536             ;;
4537             p6600)
4538                 enable mips64r6
4539                 check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
4540             ;;
4541         esac
4542     else
4543         # We do not disable anything. Is up to the user to disable the unwanted features.
4544         warn 'generic cpu selected'
4545     fi
4546
4547 elif enabled ppc; then
4548
4549     disable ldbrx
4550
4551     case $(tolower $cpu) in
4552         601|ppc601|powerpc601)
4553             cpuflags="-mcpu=601"
4554             disable altivec
4555         ;;
4556         603*|ppc603*|powerpc603*)
4557             cpuflags="-mcpu=603"
4558             disable altivec
4559         ;;
4560         604*|ppc604*|powerpc604*)
4561             cpuflags="-mcpu=604"
4562             disable altivec
4563         ;;
4564         g3|75*|ppc75*|powerpc75*)
4565             cpuflags="-mcpu=750"
4566             disable altivec
4567         ;;
4568         g4|745*|ppc745*|powerpc745*)
4569             cpuflags="-mcpu=7450"
4570             disable vsx
4571         ;;
4572         74*|ppc74*|powerpc74*)
4573             cpuflags="-mcpu=7400"
4574             disable vsx
4575         ;;
4576         g5|970|ppc970|powerpc970)
4577             cpuflags="-mcpu=970"
4578             disable vsx
4579         ;;
4580         power[3-6]*)
4581             cpuflags="-mcpu=$cpu"
4582             disable vsx
4583         ;;
4584         power[7-8]*)
4585             cpuflags="-mcpu=$cpu"
4586         ;;
4587         cell)
4588             cpuflags="-mcpu=cell"
4589             enable ldbrx
4590             disable vsx
4591         ;;
4592         e500mc)
4593             cpuflags="-mcpu=e500mc"
4594             disable altivec
4595         ;;
4596         e500v2)
4597             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4598             disable altivec
4599             disable dcbzl
4600         ;;
4601         e500)
4602             cpuflags="-mcpu=8540 -mhard-float"
4603             disable altivec
4604             disable dcbzl
4605         ;;
4606     esac
4607
4608 elif enabled sparc; then
4609
4610     case $cpu in
4611         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4612             cpuflags="-mcpu=$cpu"
4613         ;;
4614         ultrasparc*|niagara[234])
4615             cpuflags="-mcpu=$cpu"
4616         ;;
4617     esac
4618
4619 elif enabled x86; then
4620
4621     case $cpu in
4622         i[345]86|pentium)
4623             cpuflags="-march=$cpu"
4624             disable i686
4625             disable mmx
4626         ;;
4627         # targets that do NOT support nopl and conditional mov (cmov)
4628         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4629             cpuflags="-march=$cpu"
4630             disable i686
4631         ;;
4632         # targets that do support nopl and conditional mov (cmov)
4633         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4634         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
4635         |amdfam10|barcelona|b[dt]ver*|znver*)
4636             cpuflags="-march=$cpu"
4637             enable i686
4638             enable fast_cmov
4639         ;;
4640         # targets that do support conditional mov but on which it's slow
4641         pentium4|pentium4m|prescott|nocona)
4642             cpuflags="-march=$cpu"
4643             enable i686
4644             disable fast_cmov
4645         ;;
4646     esac
4647
4648 fi
4649
4650 if [ "$cpu" != generic ]; then
4651     add_cflags  $cpuflags
4652     add_asflags $cpuflags
4653     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4654 fi
4655
4656 # compiler sanity check
4657 check_exec <<EOF
4658 int main(void){ return 0; }
4659 EOF
4660 if test "$?" != 0; then
4661     echo "$cc is unable to create an executable file."
4662     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4663         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4664         echo "Only do this if you know what cross compiling means."
4665     fi
4666     die "C compiler test failed."
4667 fi
4668
4669 add_cppflags -D_ISOC99_SOURCE
4670 add_cxxflags -D__STDC_CONSTANT_MACROS
4671 add_cxxflags -std=c++98
4672
4673 # some compilers silently accept -std=c11, so we also need to check that the
4674 # version macro is defined properly
4675 if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
4676     add_cflags -std=c11
4677 else
4678     check_cflags -std=c99
4679 fi
4680
4681 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4682 #include <stdlib.h>
4683 EOF
4684 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4685 #include <stdlib.h>
4686 EOF
4687
4688 add_host_cppflags -D_ISOC99_SOURCE
4689 check_host_cflags -std=c99
4690 check_host_cflags -Wall
4691 check_host_cflags -O3
4692
4693 check_64bit(){
4694     arch32=$1
4695     arch64=$2
4696     expr=$3
4697     check_code cc "" "int test[2*($expr) - 1]" &&
4698         subarch=$arch64 || subarch=$arch32
4699 }
4700
4701 case "$arch" in
4702     aarch64|alpha|ia64)
4703         spic=$shared
4704     ;;
4705     mips)
4706         check_64bit mips mips64 '_MIPS_SIM > 1'
4707         spic=$shared
4708     ;;
4709     parisc)
4710         check_64bit parisc parisc64 'sizeof(void *) > 4'
4711         spic=$shared
4712     ;;
4713     ppc)
4714         check_64bit ppc ppc64 'sizeof(void *) > 4'
4715         spic=$shared
4716     ;;
4717     s390)
4718         check_64bit s390 s390x 'sizeof(void *) > 4'
4719         spic=$shared
4720     ;;
4721     sparc)
4722         check_64bit sparc sparc64 'sizeof(void *) > 4'
4723         spic=$shared
4724     ;;
4725     x86)
4726         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4727         # Treat x32 as x64 for now. Note it also needs spic=$shared
4728         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4729             subarch=x86_64
4730         if test "$subarch" = "x86_64"; then
4731             spic=$shared
4732         fi
4733     ;;
4734     ppc)
4735         check_cc <<EOF && subarch="ppc64"
4736         int test[(int)sizeof(char*) - 7];
4737 EOF
4738     ;;
4739 esac
4740
4741 enable $subarch
4742 enabled spic && enable_weak pic
4743
4744 # OS specific
4745 case $target_os in
4746     aix)
4747         SHFLAGS=-shared
4748         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4749         enabled shared && add_ldflags -Wl,-brtl
4750         ;;
4751     android)
4752         disable symver
4753         enable section_data_rel_ro
4754         SLIB_INSTALL_NAME='$(SLIBNAME)'
4755         SLIB_INSTALL_LINKS=
4756         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4757         ;;
4758     haiku)
4759         prefix_default="/boot/common"
4760         network_extralibs="-lnetwork"
4761         host_libs=
4762         ;;
4763     sunos)
4764         SHFLAGS='-shared -Wl,-h,$$(@F)'
4765         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4766         network_extralibs="-lsocket -lnsl"
4767         add_cppflags -D__EXTENSIONS__
4768         # When using suncc to build, the Solaris linker will mark
4769         # an executable with each instruction set encountered by
4770         # the Solaris assembler.  As our libraries contain their own
4771         # guards for processor-specific code, instead suppress
4772         # generation of the HWCAPS ELF section on Solaris x86 only.
4773         enabled_all suncc x86 &&
4774             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4775             add_ldflags -Wl,-M,mapfile
4776         nm_default='nm -P -g'
4777         version_script='-M'
4778         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
4779         ;;
4780     netbsd)
4781         disable symver
4782         oss_indev_extralibs="-lossaudio"
4783         oss_outdev_extralibs="-lossaudio"
4784         enabled gcc || check_ldflags -Wl,-zmuldefs
4785         ;;
4786     openbsd|bitrig)
4787         disable symver
4788         SHFLAGS='-shared'
4789         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4790         SLIB_INSTALL_LINKS=
4791         oss_indev_extralibs="-lossaudio"
4792         oss_outdev_extralibs="-lossaudio"
4793         ;;
4794     dragonfly)
4795         disable symver
4796         ;;
4797     freebsd)
4798         ;;
4799     bsd/os)
4800         add_extralibs -lpoll -lgnugetopt
4801         strip="strip -d"
4802         ;;
4803     darwin)
4804         enabled ppc && add_asflags -force_cpusubtype_ALL
4805         install_name_dir_default='$(SHLIBDIR)'
4806         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4807         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4808         strip="${strip} -x"
4809         add_ldflags -Wl,-dynamic,-search_paths_first
4810         SLIBSUF=".dylib"
4811         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4812         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4813         objformat="macho"
4814         enabled x86_64 && objformat="macho64"
4815         enabled_any pic shared x86_64 ||
4816             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4817         check_header dispatch/dispatch.h &&
4818             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4819         version_script='-exported_symbols_list'
4820         VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
4821         ;;
4822     msys*)
4823         die "Native MSYS builds are discouraged, please use the MINGW environment."
4824         ;;
4825     mingw32*|mingw64*)
4826         if test $target_os = "mingw32ce"; then
4827             disable network
4828         else
4829             target_os=mingw32
4830         fi
4831         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4832         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4833         LIBTARGET=i386
4834         if enabled x86_64; then
4835             LIBTARGET="i386:x86-64"
4836         elif enabled arm; then
4837             LIBTARGET=arm-wince
4838         fi
4839         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4840         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4841         shlibdir_default="$bindir_default"
4842         SLIBPREF=""
4843         SLIBSUF=".dll"
4844         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4845         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4846         dlltool="${cross_prefix}dlltool"
4847         if check_cmd lib.exe -list; then
4848             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4849             if enabled x86_64; then
4850                 LIBTARGET=x64
4851             fi
4852         elif check_cmd $dlltool --version; then
4853             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4854         fi
4855         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4856         SLIB_INSTALL_LINKS=
4857         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4858         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4859         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4860         objformat="win32"
4861         ranlib=:
4862         enable dos_paths
4863         check_ldflags -Wl,--nxcompat,--dynamicbase
4864         # Lets work around some stupidity in binutils.
4865         # ld will strip relocations from executables even though we need them
4866         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4867         # however ld then forgets what the entry point should be (oops) so we
4868         # have to manually (re)set it.
4869         if enabled x86_32; then
4870             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4871         elif enabled x86_64; then
4872             disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4873             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4874             # Set image base >4GB for extra entropy with HEASLR
4875             add_ldexeflags -Wl,--image-base,0x140000000
4876             append SHFLAGS -Wl,--image-base,0x180000000
4877         fi
4878         ;;
4879     win32|win64)
4880         disable symver
4881         if enabled shared; then
4882             # Link to the import library instead of the normal static library
4883             # for shared libs.
4884             LD_LIB='%.lib'
4885             # Cannot build both shared and static libs with MSVC or icl.
4886             disable static
4887         fi
4888         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4889         shlibdir_default="$bindir_default"
4890         SLIBPREF=""
4891         SLIBSUF=".dll"
4892         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4893         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4894         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4895         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4896         SLIB_INSTALL_LINKS=
4897         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'