89c98d19ebe8ea652d1de913a638ac7cecadcfff
[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
95 Licensing options:
96   --enable-gpl             allow use of GPL code, the resulting libs
97                            and binaries will be under GPL [no]
98   --enable-version3        upgrade (L)GPL to version 3 [no]
99   --enable-nonfree         allow use of nonfree code, the resulting libs
100                            and binaries will be unredistributable [no]
101
102 Configuration options:
103   --disable-static         do not build static libraries [no]
104   --enable-shared          build shared libraries [no]
105   --enable-small           optimize for size instead of speed
106   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
107   --enable-gray            enable full grayscale support (slower color)
108   --disable-swscale-alpha  disable alpha channel support in swscale
109   --disable-all            disable building components, libraries and programs
110   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
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 Hardware accelerators:
152   --disable-d3d11va        disable D3D11VA code [autodetect]
153   --disable-dxva2          disable DXVA2 code [autodetect]
154   --disable-vaapi          disable VAAPI code [autodetect]
155   --disable-vda            disable VDA code [autodetect]
156   --disable-vdpau          disable VDPAU code [autodetect]
157   --enable-videotoolbox    enable VideoToolbox code [autodetect]
158
159 Individual component options:
160   --disable-everything     disable all components listed below
161   --disable-encoder=NAME   disable encoder NAME
162   --enable-encoder=NAME    enable encoder NAME
163   --disable-encoders       disable all encoders
164   --disable-decoder=NAME   disable decoder NAME
165   --enable-decoder=NAME    enable decoder NAME
166   --disable-decoders       disable all decoders
167   --disable-hwaccel=NAME   disable hwaccel NAME
168   --enable-hwaccel=NAME    enable hwaccel NAME
169   --disable-hwaccels       disable all hwaccels
170   --disable-muxer=NAME     disable muxer NAME
171   --enable-muxer=NAME      enable muxer NAME
172   --disable-muxers         disable all muxers
173   --disable-demuxer=NAME   disable demuxer NAME
174   --enable-demuxer=NAME    enable demuxer NAME
175   --disable-demuxers       disable all demuxers
176   --enable-parser=NAME     enable parser NAME
177   --disable-parser=NAME    disable parser NAME
178   --disable-parsers        disable all parsers
179   --enable-bsf=NAME        enable bitstream filter NAME
180   --disable-bsf=NAME       disable bitstream filter NAME
181   --disable-bsfs           disable all bitstream filters
182   --enable-protocol=NAME   enable protocol NAME
183   --disable-protocol=NAME  disable protocol NAME
184   --disable-protocols      disable all protocols
185   --enable-indev=NAME      enable input device NAME
186   --disable-indev=NAME     disable input device NAME
187   --disable-indevs         disable input devices
188   --enable-outdev=NAME     enable output device NAME
189   --disable-outdev=NAME    disable output device NAME
190   --disable-outdevs        disable output devices
191   --disable-devices        disable all devices
192   --enable-filter=NAME     enable filter NAME
193   --disable-filter=NAME    disable filter NAME
194   --disable-filters        disable all filters
195
196 External library support:
197   --enable-avisynth        enable reading of AviSynth script files [no]
198   --disable-bzlib          disable bzlib [autodetect]
199   --enable-chromaprint     enable audio fingerprinting with chromaprint [no]
200   --enable-fontconfig      enable fontconfig, useful for drawtext filter [no]
201   --enable-frei0r          enable frei0r video filtering [no]
202   --enable-gcrypt          enable gcrypt, needed for rtmp(t)e support
203                            if openssl, librtmp or gmp is not used [no]
204   --enable-gmp             enable gmp, needed for rtmp(t)e support
205                            if openssl or librtmp is not used [no]
206   --enable-gnutls          enable gnutls, needed for https support
207                            if openssl is not used [no]
208   --disable-iconv          disable iconv [autodetect]
209   --enable-ladspa          enable LADSPA audio filtering [no]
210   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
211   --enable-libass          enable libass subtitles rendering,
212                            needed for subtitles and ass filter [no]
213   --enable-libbluray       enable BluRay reading using libbluray [no]
214   --enable-libbs2b         enable bs2b DSP library [no]
215   --enable-libcaca         enable textual display using libcaca [no]
216   --enable-libcelt         enable CELT decoding via libcelt [no]
217   --enable-libcdio         enable audio CD grabbing with libcdio [no]
218   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
219                            and libraw1394 [no]
220   --enable-libdcadec       enable DCA decoding via libdcadec [no]
221   --enable-libfaac         enable AAC encoding via libfaac [no]
222   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
223   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
224   --enable-libfreetype     enable libfreetype, needed for drawtext filter [no]
225   --enable-libfribidi      enable libfribidi, improves drawtext filter [no]
226   --enable-libgme          enable Game Music Emu via libgme [no]
227   --enable-libgsm          enable GSM de/encoding via libgsm [no]
228   --enable-libiec61883     enable iec61883 via libiec61883 [no]
229   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
230   --enable-libkvazaar      enable HEVC encoding via libkvazaar [no]
231   --enable-libmfx          enable HW acceleration through libmfx
232   --enable-libmodplug      enable ModPlug via libmodplug [no]
233   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
234   --enable-libnut          enable NUT (de)muxing via libnut,
235                            native (de)muxer exists [no]
236   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
237   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
238   --enable-libopencv       enable video filtering via libopencv [no]
239   --enable-libopenh264     enable H.264 encoding via OpenH264 [no]
240   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
241   --enable-libopus         enable Opus de/encoding via libopus [no]
242   --enable-libpulse        enable Pulseaudio input via libpulse [no]
243   --enable-librubberband   enable rubberband needed for rubberband filter [no]
244   --enable-libquvi         enable quvi input via libquvi [no]
245   --enable-librtmp         enable RTMP[E] support via librtmp [no]
246   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
247   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
248   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
249   --enable-libsnappy       enable Snappy compression, needed for hap encoding [no]
250   --enable-libsoxr         enable Include libsoxr resampling [no]
251   --enable-libspeex        enable Speex de/encoding via libspeex [no]
252   --enable-libssh          enable SFTP protocol via libssh [no]
253   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
254   --enable-libtesseract    enable Tesseract, needed for ocr filter [no]
255   --enable-libtheora       enable Theora encoding via libtheora [no]
256   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
257   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
258   --enable-libv4l2         enable libv4l2/v4l-utils [no]
259   --enable-libvidstab      enable video stabilization using vid.stab [no]
260   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [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-mmal            enable decoding via MMAL [no]
282   --enable-netcdf          enable NetCDF, needed for sofalizer filter [no]
283   --enable-nvenc           enable NVIDIA NVENC support [no]
284   --enable-openal          enable OpenAL 1.1 capture support [no]
285   --enable-opencl          enable OpenCL code
286   --enable-opengl          enable OpenGL rendering [no]
287   --enable-openssl         enable openssl, needed for https support
288                            if gnutls is not used [no]
289   --disable-schannel       disable SChannel SSP, needed for TLS support on
290                            Windows if openssl and gnutls are not used [autodetect]
291   --disable-sdl            disable sdl [autodetect]
292   --disable-securetransport disable Secure Transport, needed for TLS support
293                            on OSX if openssl and gnutls are not used [autodetect]
294   --enable-x11grab         enable X11 grabbing (legacy) [no]
295   --disable-xlib           disable xlib [autodetect]
296   --disable-zlib           disable zlib [autodetect]
297
298 Toolchain options:
299   --arch=ARCH              select architecture [$arch]
300   --cpu=CPU                select the minimum required CPU (affects
301                            instruction selection, may crash on older CPUs)
302   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
303   --progs-suffix=SUFFIX    program name suffix []
304   --enable-cross-compile   assume a cross-compiler is used
305   --sysroot=PATH           root of cross-build tree
306   --sysinclude=PATH        location of cross-build system headers
307   --target-os=OS           compiler targets OS [$target_os]
308   --target-exec=CMD        command to run executables on target
309   --target-path=DIR        path to view of build directory on target
310   --target-samples=DIR     path to samples directory on target
311   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
312   --toolchain=NAME         set tool defaults according to NAME
313   --nm=NM                  use nm tool NM [$nm_default]
314   --ar=AR                  use archive tool AR [$ar_default]
315   --as=AS                  use assembler AS [$as_default]
316   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
317   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
318   --cc=CC                  use C compiler CC [$cc_default]
319   --cxx=CXX                use C compiler CXX [$cxx_default]
320   --objcc=OCC              use ObjC compiler OCC [$cc_default]
321   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
322   --ld=LD                  use linker LD [$ld_default]
323   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
324   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
325   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
326   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
327   --host-cc=HOSTCC         use host C compiler HOSTCC
328   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
329   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
330   --host-ld=HOSTLD         use host linker HOSTLD
331   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
332   --host-libs=HLIBS        use libs HLIBS when linking for host
333   --host-os=OS             compiler host OS [$target_os]
334   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
335   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
336   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
337   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
338   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
339   --extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
340   --extra-libs=ELIBS       add ELIBS [$ELIBS]
341   --extra-version=STRING   version string suffix []
342   --optflags=OPTFLAGS      override optimization-related compiler flags
343   --build-suffix=SUFFIX    library name suffix []
344   --enable-pic             build position-independent code
345   --enable-thumb           compile for Thumb instruction set
346   --enable-lto             use link-time optimization
347   --env="ENV=override"     override the environment variables
348
349 Advanced options (experts only):
350   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
351   --custom-allocator=NAME  use a supported custom allocator
352   --disable-symver         disable symbol versioning
353   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
354   --disable-safe-bitstream-reader
355                            disable buffer boundary checking in bitreaders
356                            (faster, but may crash)
357   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
358   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
359
360 Optimization options (experts only):
361   --disable-asm            disable all assembly optimizations
362   --disable-altivec        disable AltiVec optimizations
363   --disable-vsx            disable VSX optimizations
364   --disable-power8         disable POWER8 optimizations
365   --disable-amd3dnow       disable 3DNow! optimizations
366   --disable-amd3dnowext    disable 3DNow! extended optimizations
367   --disable-mmx            disable MMX optimizations
368   --disable-mmxext         disable MMXEXT optimizations
369   --disable-sse            disable SSE optimizations
370   --disable-sse2           disable SSE2 optimizations
371   --disable-sse3           disable SSE3 optimizations
372   --disable-ssse3          disable SSSE3 optimizations
373   --disable-sse4           disable SSE4 optimizations
374   --disable-sse42          disable SSE4.2 optimizations
375   --disable-avx            disable AVX optimizations
376   --disable-xop            disable XOP optimizations
377   --disable-fma3           disable FMA3 optimizations
378   --disable-fma4           disable FMA4 optimizations
379   --disable-avx2           disable AVX2 optimizations
380   --disable-aesni          disable AESNI optimizations
381   --disable-armv5te        disable armv5te optimizations
382   --disable-armv6          disable armv6 optimizations
383   --disable-armv6t2        disable armv6t2 optimizations
384   --disable-vfp            disable VFP optimizations
385   --disable-neon           disable NEON optimizations
386   --disable-inline-asm     disable use of inline assembly
387   --disable-yasm           disable use of nasm/yasm assembly
388   --disable-mipsdsp        disable MIPS DSP ASE R1 optimizations
389   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
390   --disable-msa            disable MSA optimizations
391   --disable-mipsfpu        disable floating point MIPS optimizations
392   --disable-mmi            disable Loongson SIMD optimizations
393   --disable-fast-unaligned consider unaligned accesses slow
394
395 Developer options (useful when working on FFmpeg itself):
396   --disable-debug          disable debugging symbols
397   --enable-debug=LEVEL     set the debug level [$debuglevel]
398   --disable-optimizations  disable compiler optimizations
399   --enable-extra-warnings  enable more compiler warnings
400   --disable-stripping      disable stripping of executables and shared libraries
401   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
402                            2 causes a slowdown at runtime.
403   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
404   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
405                            leaks and errors, using the specified valgrind binary.
406                            Cannot be combined with --target-exec
407   --enable-ftrapv          Trap arithmetic overflows
408   --samples=PATH           location of test samples for FATE, if not set use
409                            \$FATE_SAMPLES at make invocation time.
410   --enable-neon-clobber-test check NEON registers for clobbering (should be
411                            used only for debugging purposes)
412   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
413                            should be used only for debugging purposes)
414   --enable-random          randomly enable/disable components
415   --disable-random
416   --enable-random=LIST     randomly enable/disable specific components or
417   --disable-random=LIST    component groups. LIST is a comma-separated list
418                            of NAME[:PROB] entries where NAME is a component
419                            (group) and PROB the probability associated with
420                            NAME (default 0.5).
421   --random-seed=VALUE      seed value for --enable/disable-random
422   --disable-valgrind-backtrace do not print a backtrace under Valgrind
423                            (only applies to --disable-optimizations builds)
424
425 NOTE: Object files are built at the place where configure is launched.
426 EOF
427   exit 0
428 }
429
430 quotes='""'
431 if test -t 1 && which tput >/dev/null 2>&1; then
432     ncolors=$(tput colors)
433     if test -n "$ncolors" && test $ncolors -ge 8; then
434         bold_color=$(tput bold)
435         warn_color=$(tput setaf 3)
436         error_color=$(tput setaf 1)
437         reset_color=$(tput sgr0)
438     fi
439     # 72 used instead of 80 since that's the default of pr
440     ncols=$(tput cols)
441 fi
442 : ${ncols:=72}
443
444 log(){
445     echo "$@" >> $logfile
446 }
447
448 log_file(){
449     log BEGIN $1
450     pr -n -t $1 >> $logfile
451     log END $1
452 }
453
454 warn(){
455     log "WARNING: $*"
456     WARNINGS="${WARNINGS}WARNING: $*\n"
457 }
458
459 die(){
460     log "$@"
461     echo "$error_color$bold_color$@$reset_color"
462     cat <<EOF
463
464 If you think configure made a mistake, make sure you are using the latest
465 version from Git.  If the latest version fails, report the problem to the
466 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
467 EOF
468     if disabled logging; then
469         cat <<EOF
470 Rerun configure with logging enabled (do not use --disable-logging), and
471 include the log this produces with your report.
472 EOF
473     else
474         cat <<EOF
475 Include the log file "$logfile" produced by configure as this will help
476 solve the problem.
477 EOF
478     fi
479     exit 1
480 }
481
482 # Avoid locale weirdness, besides we really just want to translate ASCII.
483 toupper(){
484     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
485 }
486
487 tolower(){
488     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
489 }
490
491 c_escape(){
492     echo "$*" | sed 's/["\\]/\\\0/g'
493 }
494
495 sh_quote(){
496     v=$(echo "$1" | sed "s/'/'\\\\''/g")
497     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
498     echo "$v"
499 }
500
501 cleanws(){
502     echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
503 }
504
505 filter(){
506     pat=$1
507     shift
508     for v; do
509         eval "case $v in $pat) echo $v ;; esac"
510     done
511 }
512
513 filter_out(){
514     pat=$1
515     shift
516     for v; do
517         eval "case $v in $pat) ;; *) echo $v ;; esac"
518     done
519 }
520
521 map(){
522     m=$1
523     shift
524     for v; do eval $m; done
525 }
526
527 add_suffix(){
528     suffix=$1
529     shift
530     for v; do echo ${v}${suffix}; done
531 }
532
533 set_all(){
534     value=$1
535     shift
536     for var in $*; do
537         eval $var=$value
538     done
539 }
540
541 set_weak(){
542     value=$1
543     shift
544     for var; do
545         eval : \${$var:=$value}
546     done
547 }
548
549 sanitize_var_name(){
550     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
551 }
552
553 set_safe(){
554     var=$1
555     shift
556     eval $(sanitize_var_name "$var")='$*'
557 }
558
559 get_safe(){
560     eval echo \$$(sanitize_var_name "$1")
561 }
562
563 pushvar(){
564     for pvar in $*; do
565         eval level=\${${pvar}_level:=0}
566         eval ${pvar}_${level}="\$$pvar"
567         eval ${pvar}_level=$(($level+1))
568     done
569 }
570
571 popvar(){
572     for pvar in $*; do
573         eval level=\${${pvar}_level:-0}
574         test $level = 0 && continue
575         eval level=$(($level-1))
576         eval $pvar="\${${pvar}_${level}}"
577         eval ${pvar}_level=$level
578         eval unset ${pvar}_${level}
579     done
580 }
581
582 enable(){
583     set_all yes $*
584 }
585
586 disable(){
587     set_all no $*
588 }
589
590 enable_weak(){
591     set_weak yes $*
592 }
593
594 disable_weak(){
595     set_weak no $*
596 }
597
598 enable_safe(){
599     for var; do
600         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
601     done
602 }
603
604 disable_safe(){
605     for var; do
606         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
607     done
608 }
609
610 do_enable_deep(){
611     for var; do
612         enabled $var && continue
613         eval sel="\$${var}_select"
614         eval sgs="\$${var}_suggest"
615         pushvar var sgs
616         enable_deep $sel
617         popvar sgs
618         enable_deep_weak $sgs
619         popvar var
620     done
621 }
622
623 enable_deep(){
624     do_enable_deep $*
625     enable $*
626 }
627
628 enable_deep_weak(){
629     for var; do
630         disabled $var && continue
631         pushvar var
632         do_enable_deep $var
633         popvar var
634         enable_weak $var
635     done
636 }
637
638 enabled(){
639     test "${1#!}" = "$1" && op='=' || op=!=
640     eval test "x\$${1#!}" $op "xyes"
641 }
642
643 disabled(){
644     test "${1#!}" = "$1" && op='=' || op=!=
645     eval test "x\$${1#!}" $op "xno"
646 }
647
648 enabled_all(){
649     for opt; do
650         enabled $opt || return 1
651     done
652 }
653
654 disabled_all(){
655     for opt; do
656         disabled $opt || return 1
657     done
658 }
659
660 enabled_any(){
661     for opt; do
662         enabled $opt && return 0
663     done
664 }
665
666 disabled_any(){
667     for opt; do
668         disabled $opt && return 0
669     done
670     return 1
671 }
672
673 set_default(){
674     for opt; do
675         eval : \${$opt:=\$${opt}_default}
676     done
677 }
678
679 is_in(){
680     value=$1
681     shift
682     for var in $*; do
683         [ $var = $value ] && return 0
684     done
685     return 1
686 }
687
688 do_check_deps(){
689     for cfg; do
690         cfg="${cfg#!}"
691         enabled ${cfg}_checking && die "Circular dependency for $cfg."
692         disabled ${cfg}_checking && continue
693         enable ${cfg}_checking
694         append allopts $cfg
695
696         eval dep_all="\$${cfg}_deps"
697         eval dep_any="\$${cfg}_deps_any"
698         eval dep_sel="\$${cfg}_select"
699         eval dep_sgs="\$${cfg}_suggest"
700         eval dep_ifa="\$${cfg}_if"
701         eval dep_ifn="\$${cfg}_if_any"
702
703         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
704         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
705         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
706
707         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
708         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
709         enabled_all  $dep_all || disable $cfg
710         enabled_any  $dep_any || disable $cfg
711         disabled_any $dep_sel && disable $cfg
712
713         if enabled $cfg; then
714             enable_deep $dep_sel
715             enable_deep_weak $dep_sgs
716         fi
717
718         disable ${cfg}_checking
719     done
720 }
721
722 check_deps(){
723     unset allopts
724
725     do_check_deps "$@"
726
727     for cfg in $allopts; do
728         enabled $cfg || continue
729         eval dep_extralibs="\$${cfg}_extralibs"
730         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
731     done
732 }
733
734 print_config(){
735     pfx=$1
736     files=$2
737     shift 2
738     map 'eval echo "$v \${$v:-no}"' "$@" |
739     awk "BEGIN { split(\"$files\", files) }
740         {
741             c = \"$pfx\" toupper(\$1);
742             v = \$2;
743             sub(/yes/, 1, v);
744             sub(/no/,  0, v);
745             for (f in files) {
746                 file = files[f];
747                 if (file ~ /\\.h\$/) {
748                     printf(\"#define %s %d\\n\", c, v) >>file;
749                 } else if (file ~ /\\.asm\$/) {
750                     printf(\"%%define %s %d\\n\", c, v) >>file;
751                 } else if (file ~ /\\.mak\$/) {
752                     n = -v ? \"\" : \"!\";
753                     printf(\"%s%s=yes\\n\", n, c) >>file;
754                 } else if (file ~ /\\.texi\$/) {
755                     pre = -v ? \"\" : \"@c \";
756                     yesno = \$2;
757                     c2 = tolower(c);
758                     gsub(/_/, \"-\", c2);
759                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
760                 }
761             }
762         }"
763 }
764
765 print_enabled(){
766     suf=$1
767     shift
768     for v; do
769         enabled $v && printf "%s\n" ${v%$suf};
770     done
771 }
772
773 append(){
774     var=$1
775     shift
776     eval "$var=\"\$$var $*\""
777 }
778
779 prepend(){
780     var=$1
781     shift
782     eval "$var=\"$* \$$var\""
783 }
784
785 unique(){
786     var=$1
787     uniq_list=""
788     for tok in $(eval echo \$$var); do
789         uniq_list="$(filter_out $tok $uniq_list) $tok"
790     done
791     eval "$var=\"${uniq_list}\""
792 }
793
794 add_cppflags(){
795     append CPPFLAGS "$@"
796 }
797
798 add_cflags(){
799     append CFLAGS $($cflags_filter "$@")
800 }
801
802 add_cxxflags(){
803     append CXXFLAGS $($cflags_filter "$@")
804 }
805
806 add_asflags(){
807     append ASFLAGS $($asflags_filter "$@")
808 }
809
810 add_objcflags(){
811     append OBJCFLAGS $($objcflags_filter "$@")
812 }
813
814 add_ldflags(){
815     append LDFLAGS $($ldflags_filter "$@")
816 }
817
818 add_ldexeflags(){
819     append LDEXEFLAGS $($ldflags_filter "$@")
820 }
821
822 add_ldlibflags(){
823     append LDLIBFLAGS $($ldflags_filter "$@")
824 }
825
826 add_stripflags(){
827     append ASMSTRIPFLAGS "$@"
828 }
829
830 add_extralibs(){
831     prepend extralibs $($ldflags_filter "$@")
832 }
833
834 add_host_cppflags(){
835     append host_cppflags "$@"
836 }
837
838 add_host_cflags(){
839     append host_cflags $($host_cflags_filter "$@")
840 }
841
842 add_host_ldflags(){
843     append host_ldflags $($host_ldflags_filter "$@")
844 }
845
846 add_compat(){
847     append compat_objs $1
848     shift
849     map 'add_cppflags -D$v' "$@"
850 }
851
852 check_cmd(){
853     log "$@"
854     "$@" >> $logfile 2>&1
855 }
856
857 check_stat(){
858     log check_stat "$@"
859     stat "$1" >> $logfile 2>&1
860 }
861
862 cc_o(){
863     eval printf '%s\\n' $CC_O
864 }
865
866 cc_e(){
867     eval printf '%s\\n' $CC_E
868 }
869
870 check_cc(){
871     log check_cc "$@"
872     cat > $TMPC
873     log_file $TMPC
874     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
875 }
876
877 check_cxx(){
878     log check_cxx "$@"
879     cat > $TMPCPP
880     log_file $TMPCPP
881     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
882 }
883
884 check_objcc(){
885     log check_objcc "$@"
886     cat > $TMPM
887     log_file $TMPM
888     check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
889 }
890
891 check_cpp(){
892     log check_cpp "$@"
893     cat > $TMPC
894     log_file $TMPC
895     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
896 }
897
898 as_o(){
899     eval printf '%s\\n' $AS_O
900 }
901
902 check_as(){
903     log check_as "$@"
904     cat > $TMPS
905     log_file $TMPS
906     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
907 }
908
909 check_inline_asm(){
910     log check_inline_asm "$@"
911     name="$1"
912     code="$2"
913     shift 2
914     disable $name
915     check_cc "$@" <<EOF && enable $name
916 void foo(void){ __asm__ volatile($code); }
917 EOF
918 }
919
920 check_insn(){
921     log check_insn "$@"
922     check_inline_asm ${1}_inline "\"$2\""
923     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
924 }
925
926 check_yasm(){
927     log check_yasm "$@"
928     echo "$1" > $TMPS
929     log_file $TMPS
930     shift 1
931     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
932 }
933
934 ld_o(){
935     eval printf '%s\\n' $LD_O
936 }
937
938 check_ld(){
939     log check_ld "$@"
940     type=$1
941     shift 1
942     flags=$(filter_out '-l*|*.so' $@)
943     libs=$(filter '-l*|*.so' $@)
944     check_$type $($cflags_filter $flags) || return
945     flags=$($ldflags_filter $flags)
946     libs=$($ldflags_filter $libs)
947     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
948 }
949
950 print_include(){
951     hdr=$1
952     test "${hdr%.h}" = "${hdr}" &&
953         echo "#include $hdr"    ||
954         echo "#include <$hdr>"
955 }
956
957 check_code(){
958     log check_code "$@"
959     check=$1
960     headers=$2
961     code=$3
962     shift 3
963     {
964         for hdr in $headers; do
965             print_include $hdr
966         done
967         echo "int main(void) { $code; return 0; }"
968     } | check_$check "$@"
969 }
970
971 check_cppflags(){
972     log check_cppflags "$@"
973     check_cc "$@" <<EOF && append CPPFLAGS "$@"
974 int x;
975 EOF
976 }
977
978 test_cflags(){
979     log test_cflags "$@"
980     set -- $($cflags_filter "$@")
981     check_cc "$@" <<EOF
982 int x;
983 EOF
984 }
985
986 check_cflags(){
987     log check_cflags "$@"
988     test_cflags "$@" && add_cflags "$@"
989 }
990
991 check_cxxflags(){
992     log check_cxxflags "$@"
993     set -- $($cflags_filter "$@")
994     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
995 int x;
996 EOF
997 }
998
999 test_objcflags(){
1000     log test_cflags "$@"
1001     set -- $($cflags_filter "$@")
1002     check_objcc "$@" <<EOF
1003 int x;
1004 EOF
1005 }
1006
1007 check_objcflags(){
1008     log check_cflags "$@"
1009     test_objcflags "$@" && add_objcflags "$@"
1010 }
1011
1012 test_ldflags(){
1013     log test_ldflags "$@"
1014     check_ld "cc" "$@" <<EOF
1015 int main(void){ return 0; }
1016 EOF
1017 }
1018
1019 check_ldflags(){
1020     log check_ldflags "$@"
1021     test_ldflags "$@" && add_ldflags "$@"
1022 }
1023
1024 test_stripflags(){
1025     log test_stripflags "$@"
1026     # call check_cc to get a fresh TMPO
1027     check_cc <<EOF
1028 int main(void) { return 0; }
1029 EOF
1030     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
1031 }
1032
1033 check_stripflags(){
1034     log check_stripflags "$@"
1035     test_stripflags "$@" && add_stripflags "$@"
1036 }
1037
1038 check_header(){
1039     log check_header "$@"
1040     header=$1
1041     shift
1042     disable_safe $header
1043     check_cpp "$@" <<EOF && enable_safe $header
1044 #include <$header>
1045 int x;
1046 EOF
1047 }
1048
1049 check_header_objcc(){
1050     log check_header_objcc "$@"
1051     rm -f -- "$TMPO"
1052     header=$1
1053     shift
1054     disable_safe $header
1055     {
1056        echo "#include <$header>"
1057        echo "int main(void) { return 0; }"
1058     } | check_objcc && check_stat "$TMPO" && enable_safe $headers
1059 }
1060
1061 check_func(){
1062     log check_func "$@"
1063     func=$1
1064     shift
1065     disable $func
1066     check_ld "cc" "$@" <<EOF && enable $func
1067 extern int $func();
1068 int main(void){ $func(); }
1069 EOF
1070 }
1071
1072 check_complexfunc(){
1073     log check_complexfunc "$@"
1074     func=$1
1075     narg=$2
1076     shift 2
1077     test $narg = 2 && args="f, g" || args="f * I"
1078     disable $func
1079     check_ld "cc" "$@" <<EOF && enable $func
1080 #include <complex.h>
1081 #include <math.h>
1082 float foo(complex float f, complex float g) { return $func($args); }
1083 int main(void){ return (int) foo; }
1084 EOF
1085 }
1086
1087 check_mathfunc(){
1088     log check_mathfunc "$@"
1089     func=$1
1090     narg=$2
1091     shift 2
1092     test $narg = 2 && args="f, g" || args="f"
1093     disable $func
1094     check_ld "cc" "$@" <<EOF && enable $func
1095 #include <math.h>
1096 float foo(float f, float g) { return $func($args); }
1097 int main(void){ return (int) foo; }
1098 EOF
1099 }
1100
1101 check_func_headers(){
1102     log check_func_headers "$@"
1103     headers=$1
1104     funcs=$2
1105     shift 2
1106     {
1107         for hdr in $headers; do
1108             print_include $hdr
1109         done
1110         for func in $funcs; do
1111             echo "long check_$func(void) { return (long) $func; }"
1112         done
1113         echo "int main(void) { return 0; }"
1114     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1115 }
1116
1117 check_class_headers_cpp(){
1118     log check_class_headers_cpp "$@"
1119     headers=$1
1120     classes=$2
1121     shift 2
1122     {
1123         for hdr in $headers; do
1124             echo "#include <$hdr>"
1125         done
1126         echo "int main(void) { "
1127         i=1
1128         for class in $classes; do
1129             echo "$class obj$i;"
1130             i=$(expr $i + 1)
1131         done
1132         echo "return 0; }"
1133     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1134 }
1135
1136 check_cpp_condition(){
1137     log check_cpp_condition "$@"
1138     header=$1
1139     condition=$2
1140     shift 2
1141     check_cpp "$@" <<EOF
1142 #include <$header>
1143 #if !($condition)
1144 #error "unsatisfied condition: $condition"
1145 #endif
1146 EOF
1147 }
1148
1149 check_lib(){
1150     log check_lib "$@"
1151     header="$1"
1152     func="$2"
1153     shift 2
1154     check_header $header && check_func $func "$@" && add_extralibs "$@"
1155 }
1156
1157 check_lib2(){
1158     log check_lib2 "$@"
1159     headers="$1"
1160     funcs="$2"
1161     shift 2
1162     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1163 }
1164
1165 check_lib_cpp(){
1166     log check_lib_cpp "$@"
1167     headers="$1"
1168     classes="$2"
1169     shift 2
1170     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1171 }
1172
1173 check_pkg_config(){
1174     log check_pkg_config "$@"
1175     pkgandversion="$1"
1176     pkg="${1%% *}"
1177     headers="$2"
1178     funcs="$3"
1179     shift 3
1180     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1181     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1182     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1183     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1184         set_safe "${pkg}_cflags" $pkg_cflags   &&
1185         set_safe "${pkg}_libs"   $pkg_libs
1186 }
1187
1188 check_exec(){
1189     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1190 }
1191
1192 check_exec_crash(){
1193     code=$(cat)
1194
1195     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1196     # are safe but may not be available everywhere.  Thus we use
1197     # raise(SIGTERM) instead.  The check is run in a subshell so we
1198     # can redirect the "Terminated" message from the shell.  SIGBUS
1199     # is not defined by standard C so it is used conditionally.
1200
1201     (check_exec "$@") >> $logfile 2>&1 <<EOF
1202 #include <signal.h>
1203 static void sighandler(int sig){
1204     raise(SIGTERM);
1205 }
1206 int foo(void){
1207     $code
1208 }
1209 int (*func_ptr)(void) = foo;
1210 int main(void){
1211     signal(SIGILL, sighandler);
1212     signal(SIGFPE, sighandler);
1213     signal(SIGSEGV, sighandler);
1214 #ifdef SIGBUS
1215     signal(SIGBUS, sighandler);
1216 #endif
1217     return func_ptr();
1218 }
1219 EOF
1220 }
1221
1222 check_type(){
1223     log check_type "$@"
1224     headers=$1
1225     type=$2
1226     shift 2
1227     disable_safe "$type"
1228     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1229 }
1230
1231 check_struct(){
1232     log check_struct "$@"
1233     headers=$1
1234     struct=$2
1235     member=$3
1236     shift 3
1237     disable_safe "${struct}_${member}"
1238     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1239         enable_safe "${struct}_${member}"
1240 }
1241
1242 check_builtin(){
1243     log check_builtin "$@"
1244     name=$1
1245     headers=$2
1246     builtin=$3
1247     shift 3
1248     disable "$name"
1249     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1250 }
1251
1252 check_compile_assert(){
1253     log check_compile_assert "$@"
1254     name=$1
1255     headers=$2
1256     condition=$3
1257     shift 3
1258     disable "$name"
1259     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1260 }
1261
1262 require(){
1263     name="$1"
1264     header="$2"
1265     func="$3"
1266     shift 3
1267     check_lib $header $func "$@" || die "ERROR: $name not found"
1268 }
1269
1270 require2(){
1271     name="$1"
1272     headers="$2"
1273     func="$3"
1274     shift 3
1275     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1276 }
1277
1278 require_cpp(){
1279     name="$1"
1280     headers="$2"
1281     classes="$3"
1282     shift 3
1283     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1284 }
1285
1286 use_pkg_config(){
1287     pkg="$1"
1288     check_pkg_config "$@" || return 1
1289     add_cflags    $(get_safe "${pkg}_cflags")
1290     add_extralibs $(get_safe "${pkg}_libs")
1291 }
1292
1293 require_pkg_config(){
1294     use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
1295 }
1296
1297 require_libfreetype(){
1298     log require_libfreetype "$@"
1299     pkg="freetype2"
1300     check_cmd $pkg_config --exists --print-errors $pkg \
1301       || die "ERROR: $pkg not found"
1302     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1303     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1304     {
1305         echo "#include <ft2build.h>"
1306         echo "#include FT_FREETYPE_H"
1307         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1308         echo "int main(void) { return 0; }"
1309     } | check_ld "cc" $pkg_cflags $pkg_libs \
1310       && set_safe "${pkg}_cflags" $pkg_cflags \
1311       && set_safe "${pkg}_libs"   $pkg_libs \
1312       || die "ERROR: $pkg not found"
1313     add_cflags    $(get_safe "${pkg}_cflags")
1314     add_extralibs $(get_safe "${pkg}_libs")
1315 }
1316
1317 hostcc_e(){
1318     eval printf '%s\\n' $HOSTCC_E
1319 }
1320
1321 hostcc_o(){
1322     eval printf '%s\\n' $HOSTCC_O
1323 }
1324
1325 check_host_cc(){
1326     log check_host_cc "$@"
1327     cat > $TMPC
1328     log_file $TMPC
1329     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1330 }
1331
1332 check_host_cpp(){
1333     log check_host_cpp "$@"
1334     cat > $TMPC
1335     log_file $TMPC
1336     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1337 }
1338
1339 check_host_cppflags(){
1340     log check_host_cppflags "$@"
1341     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1342 int x;
1343 EOF
1344 }
1345
1346 check_host_cflags(){
1347     log check_host_cflags "$@"
1348     set -- $($host_cflags_filter "$@")
1349     check_host_cc "$@" <<EOF && append host_cflags "$@"
1350 int x;
1351 EOF
1352 }
1353
1354 check_host_cpp_condition(){
1355     log check_host_cpp_condition "$@"
1356     header=$1
1357     condition=$2
1358     shift 2
1359     check_host_cpp "$@" <<EOF
1360 #include <$header>
1361 #if !($condition)
1362 #error "unsatisfied condition: $condition"
1363 #endif
1364 EOF
1365 }
1366
1367 cp_if_changed(){
1368     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1369     mkdir -p "$(dirname $2)"
1370     $cp_f "$1" "$2"
1371 }
1372
1373 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1374 # system-dependent things.
1375
1376 AVCODEC_COMPONENTS="
1377     bsfs
1378     decoders
1379     encoders
1380     hwaccels
1381     parsers
1382 "
1383
1384 AVDEVICE_COMPONENTS="
1385     indevs
1386     outdevs
1387 "
1388 AVFILTER_COMPONENTS="
1389     filters
1390 "
1391 AVFORMAT_COMPONENTS="
1392     demuxers
1393     muxers
1394     protocols
1395 "
1396
1397 AVRESAMPLE_COMPONENTS=""
1398 AVUTIL_COMPONENTS=""
1399
1400 COMPONENT_LIST="
1401     $AVCODEC_COMPONENTS
1402     $AVDEVICE_COMPONENTS
1403     $AVFILTER_COMPONENTS
1404     $AVFORMAT_COMPONENTS
1405     $AVRESAMPLE_COMPONENTS
1406     $AVUTIL_COMPONENTS
1407 "
1408
1409 EXAMPLE_LIST="
1410     avio_reading_example
1411     avio_dir_cmd_example
1412     decoding_encoding_example
1413     demuxing_decoding_example
1414     extract_mvs_example
1415     filter_audio_example
1416     filtering_audio_example
1417     filtering_video_example
1418     metadata_example
1419     muxing_example
1420     qsvdec_example
1421     remuxing_example
1422     resampling_audio_example
1423     scaling_video_example
1424     transcode_aac_example
1425     transcoding_example
1426 "
1427
1428 EXTERNAL_LIBRARY_LIST="
1429     avisynth
1430     bzlib
1431     chromaprint
1432     crystalhd
1433     decklink
1434     frei0r
1435     gcrypt
1436     gmp
1437     gnutls
1438     iconv
1439     ladspa
1440     libaacplus
1441     libass
1442     libbluray
1443     libbs2b
1444     libcaca
1445     libcdio
1446     libcelt
1447     libdc1394
1448     libdcadec
1449     libfaac
1450     libfdk_aac
1451     libflite
1452     libfontconfig
1453     libfreetype
1454     libfribidi
1455     libgme
1456     libgsm
1457     libiec61883
1458     libilbc
1459     libkvazaar
1460     libmfx
1461     libmodplug
1462     libmp3lame
1463     libnut
1464     libopencore_amrnb
1465     libopencore_amrwb
1466     libopencv
1467     libopenh264
1468     libopenjpeg
1469     libopus
1470     libpulse
1471     libquvi
1472     librtmp
1473     librubberband
1474     libschroedinger
1475     libshine
1476     libsmbclient
1477     libsnappy
1478     libsoxr
1479     libspeex
1480     libssh
1481     libstagefright_h264
1482     libtesseract
1483     libtheora
1484     libtwolame
1485     libutvideo
1486     libv4l2
1487     libvidstab
1488     libvo_aacenc
1489     libvo_amrwbenc
1490     libvorbis
1491     libvpx
1492     libwavpack
1493     libwebp
1494     libx264
1495     libx265
1496     libxavs
1497     libxcb
1498     libxcb_shm
1499     libxcb_shape
1500     libxcb_xfixes
1501     libxvid
1502     libzimg
1503     libzmq
1504     libzvbi
1505     lzma
1506     mmal
1507     netcdf
1508     nvenc
1509     openal
1510     opencl
1511     opengl
1512     openssl
1513     schannel
1514     sdl
1515     securetransport
1516     x11grab
1517     xlib
1518     zlib
1519 "
1520
1521 DOCUMENT_LIST="
1522     doc
1523     htmlpages
1524     manpages
1525     podpages
1526     txtpages
1527 "
1528
1529 FEATURE_LIST="
1530     ftrapv
1531     gray
1532     hardcoded_tables
1533     runtime_cpudetect
1534     safe_bitstream_reader
1535     shared
1536     small
1537     static
1538     swscale_alpha
1539 "
1540
1541 HWACCEL_LIST="
1542     d3d11va
1543     dxva2
1544     vaapi
1545     vda
1546     vdpau
1547     videotoolbox
1548     xvmc
1549 "
1550
1551 LIBRARY_LIST="
1552     avcodec
1553     avdevice
1554     avfilter
1555     avformat
1556     avresample
1557     avutil
1558     postproc
1559     swresample
1560     swscale
1561 "
1562
1563 LICENSE_LIST="
1564     gpl
1565     nonfree
1566     version3
1567 "
1568
1569 PROGRAM_LIST="
1570     ffplay
1571     ffprobe
1572     ffserver
1573     ffmpeg
1574 "
1575
1576 SUBSYSTEM_LIST="
1577     dct
1578     dwt
1579     error_resilience
1580     faan
1581     fast_unaligned
1582     fft
1583     lsp
1584     lzo
1585     mdct
1586     pixelutils
1587     network
1588     rdft
1589 "
1590
1591 CONFIG_LIST="
1592     $COMPONENT_LIST
1593     $DOCUMENT_LIST
1594     $EXAMPLE_LIST
1595     $EXTERNAL_LIBRARY_LIST
1596     $FEATURE_LIST
1597     $HWACCEL_LIST
1598     $LICENSE_LIST
1599     $LIBRARY_LIST
1600     $PROGRAM_LIST
1601     $SUBSYSTEM_LIST
1602     fontconfig
1603     incompatible_libav_abi
1604     memalign_hack
1605     memory_poisoning
1606     neon_clobber_test
1607     pic
1608     pod2man
1609     raise_major
1610     thumb
1611     valgrind_backtrace
1612     xmm_clobber_test
1613 "
1614
1615 THREADS_LIST="
1616     pthreads
1617     os2threads
1618     w32threads
1619 "
1620
1621 ATOMICS_LIST="
1622     atomics_gcc
1623     atomics_suncc
1624     atomics_win32
1625 "
1626
1627 ARCH_LIST="
1628     aarch64
1629     alpha
1630     arm
1631     avr32
1632     avr32_ap
1633     avr32_uc
1634     bfin
1635     ia64
1636     m68k
1637     mips
1638     mips64
1639     parisc
1640     ppc
1641     ppc64
1642     s390
1643     sh4
1644     sparc
1645     sparc64
1646     tilegx
1647     tilepro
1648     tomi
1649     x86
1650     x86_32
1651     x86_64
1652 "
1653
1654 ARCH_EXT_LIST_ARM="
1655     armv5te
1656     armv6
1657     armv6t2
1658     armv8
1659     neon
1660     vfp
1661     vfpv3
1662     setend
1663 "
1664
1665 ARCH_EXT_LIST_MIPS="
1666     mipsfpu
1667     mips32r2
1668     mips64r2
1669     mips64r6
1670     mipsdsp
1671     mipsdspr2
1672     msa
1673 "
1674
1675 ARCH_EXT_LIST_LOONGSON="
1676     loongson2
1677     loongson3
1678     mmi
1679 "
1680
1681 ARCH_EXT_LIST_X86_SIMD="
1682     aesni
1683     amd3dnow
1684     amd3dnowext
1685     avx
1686     avx2
1687     fma3
1688     fma4
1689     mmx
1690     mmxext
1691     sse
1692     sse2
1693     sse3
1694     sse4
1695     sse42
1696     ssse3
1697     xop
1698 "
1699
1700 ARCH_EXT_LIST_PPC="
1701     altivec
1702     dcbzl
1703     ldbrx
1704     power8
1705     ppc4xx
1706     vsx
1707 "
1708
1709 ARCH_EXT_LIST_X86="
1710     $ARCH_EXT_LIST_X86_SIMD
1711     cpunop
1712     i686
1713 "
1714
1715 ARCH_EXT_LIST="
1716     $ARCH_EXT_LIST_ARM
1717     $ARCH_EXT_LIST_PPC
1718     $ARCH_EXT_LIST_X86
1719     $ARCH_EXT_LIST_MIPS
1720     $ARCH_EXT_LIST_LOONGSON
1721 "
1722
1723 ARCH_FEATURES="
1724     aligned_stack
1725     fast_64bit
1726     fast_clz
1727     fast_cmov
1728     local_aligned_8
1729     local_aligned_16
1730     local_aligned_32
1731     simd_align_16
1732 "
1733
1734 BUILTIN_LIST="
1735     atomic_cas_ptr
1736     atomic_compare_exchange
1737     machine_rw_barrier
1738     MemoryBarrier
1739     mm_empty
1740     rdtsc
1741     sarestart
1742     sync_val_compare_and_swap
1743 "
1744 HAVE_LIST_CMDLINE="
1745     inline_asm
1746     symver
1747     yasm
1748 "
1749
1750 HAVE_LIST_PUB="
1751     bigendian
1752     fast_unaligned
1753     incompatible_libav_abi
1754 "
1755
1756 HEADERS_LIST="
1757     alsa_asoundlib_h
1758     altivec_h
1759     arpa_inet_h
1760     asm_types_h
1761     cdio_paranoia_h
1762     cdio_paranoia_paranoia_h
1763     dev_bktr_ioctl_bt848_h
1764     dev_bktr_ioctl_meteor_h
1765     dev_ic_bt8xx_h
1766     dev_video_bktr_ioctl_bt848_h
1767     dev_video_meteor_ioctl_meteor_h
1768     direct_h
1769     dirent_h
1770     dlfcn_h
1771     d3d11_h
1772     dxva_h
1773     ES2_gl_h
1774     gsm_h
1775     io_h
1776     mach_mach_time_h
1777     machine_ioctl_bt848_h
1778     machine_ioctl_meteor_h
1779     malloc_h
1780     openjpeg_1_5_openjpeg_h
1781     OpenGL_gl3_h
1782     poll_h
1783     sndio_h
1784     soundcard_h
1785     sys_mman_h
1786     sys_param_h
1787     sys_resource_h
1788     sys_select_h
1789     sys_soundcard_h
1790     sys_time_h
1791     sys_un_h
1792     sys_videoio_h
1793     termios_h
1794     udplite_h
1795     unistd_h
1796     valgrind_valgrind_h
1797     windows_h
1798     winsock2_h
1799 "
1800
1801 INTRINSICS_LIST="
1802     intrinsics_neon
1803 "
1804
1805 COMPLEX_FUNCS="
1806     cabs
1807     cexp
1808 "
1809
1810 MATH_FUNCS="
1811     atanf
1812     atan2f
1813     cbrt
1814     cbrtf
1815     copysign
1816     cosf
1817     erf
1818     exp2
1819     exp2f
1820     expf
1821     hypot
1822     isinf
1823     isnan
1824     ldexpf
1825     llrint
1826     llrintf
1827     log2
1828     log2f
1829     log10f
1830     lrint
1831     lrintf
1832     powf
1833     rint
1834     round
1835     roundf
1836     sinf
1837     trunc
1838     truncf
1839 "
1840
1841 SYSTEM_FUNCS="
1842     access
1843     aligned_malloc
1844     arc4random
1845     clock_gettime
1846     closesocket
1847     CommandLineToArgvW
1848     CoTaskMemFree
1849     CryptGenRandom
1850     dlopen
1851     fcntl
1852     flt_lim
1853     fork
1854     getaddrinfo
1855     gethrtime
1856     getopt
1857     GetProcessAffinityMask
1858     GetProcessMemoryInfo
1859     GetProcessTimes
1860     getrusage
1861     GetSystemTimeAsFileTime
1862     gettimeofday
1863     glob
1864     glXGetProcAddress
1865     gmtime_r
1866     inet_aton
1867     isatty
1868     jack_port_get_latency_range
1869     kbhit
1870     localtime_r
1871     lstat
1872     lzo1x_999_compress
1873     mach_absolute_time
1874     MapViewOfFile
1875     memalign
1876     mkstemp
1877     mmap
1878     mprotect
1879     nanosleep
1880     PeekNamedPipe
1881     posix_memalign
1882     pthread_cancel
1883     sched_getaffinity
1884     SetConsoleTextAttribute
1885     SetConsoleCtrlHandler
1886     setmode
1887     setrlimit
1888     Sleep
1889     strerror_r
1890     sysconf
1891     sysctl
1892     usleep
1893     UTGetOSTypeFromString
1894     VirtualAlloc
1895     wglGetProcAddress
1896 "
1897
1898 TOOLCHAIN_FEATURES="
1899     as_dn_directive
1900     as_func
1901     as_object_arch
1902     asm_mod_q
1903     attribute_may_alias
1904     attribute_packed
1905     ebp_available
1906     ebx_available
1907     gnu_as
1908     gnu_windres
1909     ibm_asm
1910     inline_asm_labels
1911     inline_asm_nonlocal_labels
1912     inline_asm_direct_symbol_refs
1913     pragma_deprecated
1914     rsync_contimeout
1915     symver_asm_label
1916     symver_gnu_asm
1917     vfp_args
1918     xform_asm
1919     xmm_clobbers
1920 "
1921
1922 TYPES_LIST="
1923     CONDITION_VARIABLE_Ptr
1924     socklen_t
1925     struct_addrinfo
1926     struct_group_source_req
1927     struct_ip_mreq_source
1928     struct_ipv6_mreq
1929     struct_pollfd
1930     struct_rusage_ru_maxrss
1931     struct_sctp_event_subscribe
1932     struct_sockaddr_in6
1933     struct_sockaddr_sa_len
1934     struct_sockaddr_storage
1935     struct_stat_st_mtim_tv_nsec
1936     struct_v4l2_frmivalenum_discrete
1937 "
1938
1939 HAVE_LIST="
1940     $ARCH_EXT_LIST
1941     $(add_suffix _external $ARCH_EXT_LIST)
1942     $(add_suffix _inline   $ARCH_EXT_LIST)
1943     $ARCH_FEATURES
1944     $ATOMICS_LIST
1945     $BUILTIN_LIST
1946     $COMPLEX_FUNCS
1947     $HAVE_LIST_CMDLINE
1948     $HAVE_LIST_PUB
1949     $HEADERS_LIST
1950     $INTRINSICS_LIST
1951     $MATH_FUNCS
1952     $SYSTEM_FUNCS
1953     $THREADS_LIST
1954     $TOOLCHAIN_FEATURES
1955     $TYPES_LIST
1956     atomics_native
1957     dos_paths
1958     dxva2api_cobj
1959     dxva2_lib
1960     winrt
1961     libc_msvcrt
1962     libdc1394_1
1963     libdc1394_2
1964     makeinfo
1965     makeinfo_html
1966     perl
1967     pod2man
1968     sdl
1969     section_data_rel_ro
1970     texi2html
1971     threads
1972     vaapi_x11
1973     vdpau_x11
1974     xlib
1975 "
1976
1977 # options emitted with CONFIG_ prefix but not available on the command line
1978 CONFIG_EXTRA="
1979     aandcttables
1980     ac3dsp
1981     audio_frame_queue
1982     audiodsp
1983     blockdsp
1984     bswapdsp
1985     cabac
1986     dirac_parse
1987     dvprofile
1988     exif
1989     faandct
1990     faanidct
1991     fdctdsp
1992     flacdsp
1993     fmtconvert
1994     frame_thread_encoder
1995     g722dsp
1996     golomb
1997     gplv3
1998     h263dsp
1999     h264chroma
2000     h264dsp
2001     h264pred
2002     h264qpel
2003     hpeldsp
2004     huffman
2005     huffyuvdsp
2006     huffyuvencdsp
2007     idctdsp
2008     iirfilter
2009     imdct15
2010     intrax8
2011     ividsp
2012     jpegtables
2013     libx262
2014     lgplv3
2015     llauddsp
2016     llviddsp
2017     lpc
2018     lzf
2019     me_cmp
2020     mpeg_er
2021     mpegaudio
2022     mpegaudiodsp
2023     mpegvideo
2024     mpegvideoenc
2025     mss34dsp
2026     pixblockdsp
2027     qpeldsp
2028     qsv
2029     qsvdec
2030     qsvenc
2031     rangecoder
2032     riffdec
2033     riffenc
2034     rtpdec
2035     rtpenc_chain
2036     rv34dsp
2037     sinewin
2038     snappy
2039     startcode
2040     texturedsp
2041     texturedspenc
2042     tpeldsp
2043     videodsp
2044     vp3dsp
2045     vp56dsp
2046     vp8dsp
2047     wma_freqs
2048     wmv2dsp
2049 "
2050
2051 CMDLINE_SELECT="
2052     $ARCH_EXT_LIST
2053     $CONFIG_LIST
2054     $HAVE_LIST_CMDLINE
2055     $THREADS_LIST
2056     asm
2057     cross_compile
2058     debug
2059     extra_warnings
2060     logging
2061     lto
2062     optimizations
2063     rpath
2064     stripping
2065 "
2066
2067 PATHS_LIST="
2068     bindir
2069     datadir
2070     docdir
2071     incdir
2072     libdir
2073     mandir
2074     pkgconfigdir
2075     prefix
2076     shlibdir
2077 "
2078
2079 CMDLINE_SET="
2080     $PATHS_LIST
2081     ar
2082     arch
2083     as
2084     assert_level
2085     build_suffix
2086     cc
2087     objcc
2088     cpu
2089     cross_prefix
2090     custom_allocator
2091     cxx
2092     dep_cc
2093     doxygen
2094     env
2095     extra_version
2096     gas
2097     host_cc
2098     host_cflags
2099     host_ld
2100     host_ldflags
2101     host_libs
2102     host_os
2103     install
2104     ld
2105     logfile
2106     malloc_prefix
2107     nm
2108     optflags
2109     pkg_config
2110     pkg_config_flags
2111     progs_suffix
2112     random_seed
2113     ranlib
2114     samples
2115     strip
2116     sws_max_filter_size
2117     sysinclude
2118     sysroot
2119     target_exec
2120     target_os
2121     target_path
2122     target_samples
2123     tempprefix
2124     toolchain
2125     valgrind
2126     yasmexe
2127 "
2128
2129 CMDLINE_APPEND="
2130     extra_cflags
2131     extra_cxxflags
2132     extra_objcflags
2133     host_cppflags
2134 "
2135
2136 # code dependency declarations
2137
2138 # architecture extensions
2139
2140 armv5te_deps="arm"
2141 armv6_deps="arm"
2142 armv6t2_deps="arm"
2143 armv8_deps="aarch64"
2144 neon_deps_any="aarch64 arm"
2145 intrinsics_neon_deps="neon"
2146 vfp_deps_any="aarch64 arm"
2147 vfpv3_deps="vfp"
2148 setend_deps="arm"
2149
2150 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2151
2152 mipsfpu_deps="mips"
2153 mipsdsp_deps="mips"
2154 mipsdspr2_deps="mips"
2155 mips32r2_deps="mips"
2156 mips64r2_deps="mips"
2157 mips64r6_deps="mips"
2158 msa_deps="mips"
2159 mmi_deps="mips"
2160
2161 altivec_deps="ppc"
2162 dcbzl_deps="ppc"
2163 ldbrx_deps="ppc"
2164 ppc4xx_deps="ppc"
2165 vsx_deps="altivec"
2166 power8_deps="vsx"
2167
2168 cpunop_deps="i686"
2169 x86_64_select="i686"
2170 x86_64_suggest="fast_cmov"
2171
2172 amd3dnow_deps="mmx"
2173 amd3dnowext_deps="amd3dnow"
2174 i686_deps="x86"
2175 mmx_deps="x86"
2176 mmxext_deps="mmx"
2177 sse_deps="mmxext"
2178 sse2_deps="sse"
2179 sse3_deps="sse2"
2180 ssse3_deps="sse3"
2181 sse4_deps="ssse3"
2182 sse42_deps="sse4"
2183 aesni_deps="sse42"
2184 avx_deps="sse42"
2185 xop_deps="avx"
2186 fma3_deps="avx"
2187 fma4_deps="avx"
2188 avx2_deps="avx"
2189
2190 mmx_external_deps="yasm"
2191 mmx_inline_deps="inline_asm"
2192 mmx_suggest="mmx_external mmx_inline"
2193
2194 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2195     eval dep=\$${ext}_deps
2196     eval ${ext}_external_deps='"${dep}_external"'
2197     eval ${ext}_inline_deps='"${dep}_inline"'
2198     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2199 done
2200
2201 aligned_stack_if_any="aarch64 ppc x86"
2202 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2203 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2204 fast_unaligned_if_any="aarch64 ppc x86"
2205 simd_align_16_if_any="altivec neon sse"
2206
2207 # system capabilities
2208 symver_if_any="symver_asm_label symver_gnu_asm"
2209 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2210
2211 # threading support
2212 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2213 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2214 atomics_win32_if="MemoryBarrier"
2215 atomics_native_if_any="$ATOMICS_LIST"
2216 w32threads_deps="atomics_native"
2217 threads_if_any="$THREADS_LIST"
2218
2219 # subsystems
2220 dct_select="rdft"
2221 dirac_parse_select="golomb"
2222 error_resilience_select="me_cmp"
2223 faandct_deps="faan fdctdsp"
2224 faanidct_deps="faan idctdsp"
2225 frame_thread_encoder_deps="encoders threads"
2226 intrax8_select="error_resilience"
2227 mdct_select="fft"
2228 rdft_select="fft"
2229 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2230 mpeg_er_select="error_resilience"
2231 mpegaudio_select="mpegaudiodsp"
2232 mpegaudiodsp_select="dct"
2233 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2234 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2235 qsvdec_select="qsv"
2236 qsvenc_select="qsv"
2237
2238 # decoders / encoders
2239 aac_decoder_select="imdct15 mdct sinewin"
2240 aac_fixed_decoder_select="mdct sinewin"
2241 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2242 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2243 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2244 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2245 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2246 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2247 adpcm_g722_decoder_select="g722dsp"
2248 adpcm_g722_encoder_select="g722dsp"
2249 aic_decoder_select="golomb idctdsp"
2250 alac_encoder_select="lpc"
2251 als_decoder_select="bswapdsp"
2252 amrnb_decoder_select="lsp"
2253 amrwb_decoder_select="lsp"
2254 amv_decoder_select="sp5x_decoder exif"
2255 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2256 ape_decoder_select="bswapdsp llauddsp"
2257 apng_decoder_select="zlib"
2258 apng_encoder_select="huffyuvencdsp zlib"
2259 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2260 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2261 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2262 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2263 atrac1_decoder_select="mdct sinewin"
2264 atrac3_decoder_select="mdct"
2265 atrac3p_decoder_select="mdct sinewin"
2266 avrn_decoder_select="exif jpegtables"
2267 bink_decoder_select="blockdsp hpeldsp"
2268 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2269 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2270 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2271 cllc_decoder_select="bswapdsp"
2272 comfortnoise_encoder_select="lpc"
2273 cook_decoder_select="audiodsp mdct sinewin"
2274 cscd_decoder_select="lzo"
2275 cscd_decoder_suggest="zlib"
2276 dca_decoder_select="fmtconvert mdct"
2277 dds_decoder_select="texturedsp"
2278 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2279 dnxhd_decoder_select="blockdsp idctdsp"
2280 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2281 dvvideo_decoder_select="dvprofile idctdsp"
2282 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2283 dxa_decoder_select="zlib"
2284 dxv_decoder_select="lzf texturedsp"
2285 eac3_decoder_select="ac3_decoder"
2286 eac3_encoder_select="ac3_encoder"
2287 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2288 eatgq_decoder_select="aandcttables"
2289 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2290 exr_decoder_select="zlib"
2291 ffv1_decoder_select="golomb rangecoder"
2292 ffv1_encoder_select="rangecoder"
2293 ffvhuff_decoder_select="huffyuv_decoder"
2294 ffvhuff_encoder_select="huffyuv_encoder"
2295 fic_decoder_select="golomb"
2296 flac_decoder_select="flacdsp golomb"
2297 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2298 flashsv_decoder_select="zlib"
2299 flashsv_encoder_select="zlib"
2300 flashsv2_encoder_select="zlib"
2301 flashsv2_decoder_select="zlib"
2302 flv_decoder_select="h263_decoder"
2303 flv_encoder_select="h263_encoder"
2304 fourxm_decoder_select="blockdsp bswapdsp"
2305 fraps_decoder_select="bswapdsp huffman"
2306 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2307 g729_decoder_select="audiodsp"
2308 h261_decoder_select="mpegvideo"
2309 h261_encoder_select="aandcttables mpegvideoenc"
2310 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2311 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2312 h263i_decoder_select="h263_decoder"
2313 h263p_decoder_select="h263_decoder"
2314 h263p_encoder_select="h263_encoder"
2315 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2316 h264_decoder_suggest="error_resilience"
2317 h264_qsv_decoder_deps="libmfx"
2318 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2319 h264_qsv_encoder_deps="libmfx"
2320 h264_qsv_encoder_select="qsvenc"
2321 hap_decoder_select="snappy texturedsp"
2322 hap_encoder_deps="libsnappy"
2323 hap_encoder_select="texturedspenc"
2324 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2325 hevc_qsv_encoder_deps="libmfx"
2326 hevc_qsv_decoder_deps="libmfx"
2327 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2328 hevc_qsv_encoder_select="qsvenc"
2329 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2330 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2331 iac_decoder_select="imc_decoder"
2332 imc_decoder_select="bswapdsp fft mdct sinewin"
2333 indeo3_decoder_select="hpeldsp"
2334 indeo4_decoder_select="ividsp"
2335 indeo5_decoder_select="ividsp"
2336 interplay_video_decoder_select="hpeldsp"
2337 jpegls_decoder_select="golomb mjpeg_decoder"
2338 jpegls_encoder_select="golomb"
2339 jv_decoder_select="blockdsp"
2340 lagarith_decoder_select="huffyuvdsp"
2341 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2342 loco_decoder_select="golomb"
2343 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2344 metasound_decoder_select="lsp mdct sinewin"
2345 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2346 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2347 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2348 mjpegb_decoder_select="mjpeg_decoder"
2349 mlp_decoder_select="mlp_parser"
2350 motionpixels_decoder_select="bswapdsp"
2351 mp1_decoder_select="mpegaudio"
2352 mp1float_decoder_select="mpegaudio"
2353 mp2_decoder_select="mpegaudio"
2354 mp2float_decoder_select="mpegaudio"
2355 mp3_decoder_select="mpegaudio"
2356 mp3adu_decoder_select="mpegaudio"
2357 mp3adufloat_decoder_select="mpegaudio"
2358 mp3float_decoder_select="mpegaudio"
2359 mp3on4_decoder_select="mpegaudio"
2360 mp3on4float_decoder_select="mpegaudio"
2361 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2362 mpc8_decoder_select="mpegaudiodsp"
2363 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2364 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2365 mpegvideo_decoder_select="mpegvideo"
2366 mpeg1video_decoder_select="mpegvideo"
2367 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2368 mpeg2video_decoder_select="mpegvideo"
2369 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2370 mpeg2_qsv_decoder_deps="libmfx"
2371 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2372 mpeg2_qsv_encoder_deps="libmfx"
2373 mpeg2_qsv_encoder_select="qsvenc"
2374 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2375 mpeg4_encoder_select="h263_encoder"
2376 msa1_decoder_select="mss34dsp"
2377 msmpeg4v1_decoder_select="h263_decoder"
2378 msmpeg4v2_decoder_select="h263_decoder"
2379 msmpeg4v2_encoder_select="h263_encoder"
2380 msmpeg4v3_decoder_select="h263_decoder"
2381 msmpeg4v3_encoder_select="h263_encoder"
2382 mss2_decoder_select="vc1_decoder"
2383 mts2_decoder_select="mss34dsp"
2384 mxpeg_decoder_select="mjpeg_decoder"
2385 nellymoser_decoder_select="mdct sinewin"
2386 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2387 nuv_decoder_select="idctdsp lzo"
2388 on2avc_decoder_select="mdct"
2389 opus_decoder_deps="swresample"
2390 opus_decoder_select="imdct15"
2391 png_decoder_select="zlib"
2392 png_encoder_select="huffyuvencdsp zlib"
2393 prores_decoder_select="blockdsp idctdsp"
2394 prores_encoder_select="fdctdsp"
2395 qcelp_decoder_select="lsp"
2396 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2397 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2398 ra_144_decoder_select="audiodsp"
2399 ralf_decoder_select="golomb"
2400 rawvideo_decoder_select="bswapdsp"
2401 rscc_decoder_select="zlib"
2402 rtjpeg_decoder_select="me_cmp"
2403 rv10_decoder_select="h263_decoder"
2404 rv10_encoder_select="h263_encoder"
2405 rv20_decoder_select="h263_decoder"
2406 rv20_encoder_select="h263_encoder"
2407 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2408 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2409 screenpresso_decoder_select="zlib"
2410 shorten_decoder_select="golomb"
2411 sipr_decoder_select="lsp"
2412 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2413 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2414 sonic_decoder_select="golomb rangecoder"
2415 sonic_encoder_select="golomb rangecoder"
2416 sonic_ls_encoder_select="golomb rangecoder"
2417 sp5x_decoder_select="mjpeg_decoder"
2418 svq1_decoder_select="hpeldsp"
2419 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2420 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2421 svq3_decoder_suggest="zlib"
2422 tak_decoder_select="audiodsp"
2423 tdsc_decoder_select="zlib mjpeg_decoder"
2424 theora_decoder_select="vp3_decoder"
2425 thp_decoder_select="mjpeg_decoder"
2426 tiff_decoder_suggest="zlib lzma"
2427 tiff_encoder_suggest="zlib"
2428 truehd_decoder_select="mlp_parser"
2429 truemotion2_decoder_select="bswapdsp"
2430 truespeech_decoder_select="bswapdsp"
2431 tscc_decoder_select="zlib"
2432 twinvq_decoder_select="mdct lsp sinewin"
2433 txd_decoder_select="texturedsp"
2434 utvideo_decoder_select="bswapdsp"
2435 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2436 vble_decoder_select="huffyuvdsp"
2437 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2438 vc1image_decoder_select="vc1_decoder"
2439 vc1_qsv_decoder_deps="libmfx"
2440 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2441 vorbis_decoder_select="mdct"
2442 vorbis_encoder_select="mdct"
2443 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2444 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2445 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2446 vp6a_decoder_select="vp6_decoder"
2447 vp6f_decoder_select="vp6_decoder"
2448 vp7_decoder_select="h264pred videodsp vp8dsp"
2449 vp8_decoder_select="h264pred videodsp vp8dsp"
2450 vp9_decoder_select="videodsp vp9_parser"
2451 webp_decoder_select="vp8_decoder"
2452 wmalossless_decoder_select="llauddsp"
2453 wmapro_decoder_select="mdct sinewin wma_freqs"
2454 wmav1_decoder_select="mdct sinewin wma_freqs"
2455 wmav1_encoder_select="mdct sinewin wma_freqs"
2456 wmav2_decoder_select="mdct sinewin wma_freqs"
2457 wmav2_encoder_select="mdct sinewin wma_freqs"
2458 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2459 wmv1_decoder_select="h263_decoder"
2460 wmv1_encoder_select="h263_encoder"
2461 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2462 wmv2_encoder_select="h263_encoder wmv2dsp"
2463 wmv3_decoder_select="vc1_decoder"
2464 wmv3image_decoder_select="wmv3_decoder"
2465 zerocodec_decoder_select="zlib"
2466 zlib_decoder_select="zlib"
2467 zlib_encoder_select="zlib"
2468 zmbv_decoder_select="zlib"
2469 zmbv_encoder_select="zlib"
2470
2471 # hardware accelerators
2472 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2473 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2474 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2475 vaapi_deps="va_va_h"
2476 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2477 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2478 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2479 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2480 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2481 xvmc_deps="X11_extensions_XvMClib_h"
2482
2483 h263_vaapi_hwaccel_deps="vaapi"
2484 h263_vaapi_hwaccel_select="h263_decoder"
2485 h263_videotoolbox_hwaccel_deps="videotoolbox"
2486 h263_videotoolbox_hwaccel_select="h263_decoder"
2487 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2488 h264_d3d11va_hwaccel_deps="d3d11va"
2489 h264_d3d11va_hwaccel_select="h264_decoder"
2490 h264_dxva2_hwaccel_deps="dxva2"
2491 h264_dxva2_hwaccel_select="h264_decoder"
2492 h264_mmal_decoder_deps="mmal"
2493 h264_mmal_hwaccel_deps="mmal"
2494 h264_mmal_decoder_select="h264_decoder"
2495 h264_mmal_encoder_deps="mmal"
2496 h264_qsv_hwaccel_deps="libmfx"
2497 h264_vaapi_hwaccel_deps="vaapi"
2498 h264_vaapi_hwaccel_select="h264_decoder"
2499 h264_vda_decoder_deps="vda"
2500 h264_vda_decoder_select="h264_decoder"
2501 h264_vda_hwaccel_deps="vda"
2502 h264_vda_hwaccel_select="h264_decoder"
2503 h264_vda_old_hwaccel_deps="vda"
2504 h264_vda_old_hwaccel_select="h264_decoder"
2505 h264_vdpau_decoder_deps="vdpau"
2506 h264_vdpau_decoder_select="h264_decoder"
2507 h264_vdpau_hwaccel_deps="vdpau"
2508 h264_vdpau_hwaccel_select="h264_decoder"
2509 h264_videotoolbox_hwaccel_deps="videotoolbox"
2510 h264_videotoolbox_hwaccel_select="h264_decoder"
2511 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2512 hevc_d3d11va_hwaccel_select="hevc_decoder"
2513 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2514 hevc_dxva2_hwaccel_select="hevc_decoder"
2515 hevc_qsv_hwaccel_deps="libmfx"
2516 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2517 hevc_vaapi_hwaccel_select="hevc_decoder"
2518 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2519 hevc_vdpau_hwaccel_select="hevc_decoder"
2520 mpeg_vdpau_decoder_deps="vdpau"
2521 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2522 mpeg_xvmc_hwaccel_deps="xvmc"
2523 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2524 mpeg1_vdpau_decoder_deps="vdpau"
2525 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2526 mpeg1_vdpau_hwaccel_deps="vdpau"
2527 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2528 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2529 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2530 mpeg1_xvmc_hwaccel_deps="xvmc"
2531 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2532 mpeg2_crystalhd_decoder_select="crystalhd"
2533 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2534 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2535 mpeg2_dxva2_hwaccel_deps="dxva2"
2536 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2537 mpeg2_mmal_decoder_deps="mmal"
2538 mpeg2_mmal_hwaccel_deps="mmal"
2539 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2540 mpeg2_qsv_hwaccel_deps="libmfx"
2541 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2542 mpeg2_vaapi_hwaccel_deps="vaapi"
2543 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2544 mpeg2_vdpau_hwaccel_deps="vdpau"
2545 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2546 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2547 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_xvmc_hwaccel_deps="xvmc"
2549 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2550 mpeg4_crystalhd_decoder_select="crystalhd"
2551 mpeg4_vaapi_hwaccel_deps="vaapi"
2552 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2553 mpeg4_vdpau_decoder_deps="vdpau"
2554 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2555 mpeg4_vdpau_hwaccel_deps="vdpau"
2556 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2557 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2558 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2559 msmpeg4_crystalhd_decoder_select="crystalhd"
2560 vc1_crystalhd_decoder_select="crystalhd"
2561 vc1_d3d11va_hwaccel_deps="d3d11va"
2562 vc1_d3d11va_hwaccel_select="vc1_decoder"
2563 vc1_dxva2_hwaccel_deps="dxva2"
2564 vc1_dxva2_hwaccel_select="vc1_decoder"
2565 vc1_vaapi_hwaccel_deps="vaapi"
2566 vc1_vaapi_hwaccel_select="vc1_decoder"
2567 vc1_vdpau_decoder_deps="vdpau"
2568 vc1_vdpau_decoder_select="vc1_decoder"
2569 vc1_vdpau_hwaccel_deps="vdpau"
2570 vc1_vdpau_hwaccel_select="vc1_decoder"
2571 vc1_mmal_decoder_deps="mmal"
2572 vc1_mmal_hwaccel_deps="mmal"
2573 vc1_mmal_decoder_select="vc1_decoder"
2574 vc1_qsv_hwaccel_deps="libmfx"
2575 vc1_qsv_hwaccel_select="qsvdec_vc1"
2576 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2577 vp9_d3d11va_hwaccel_select="vp9_decoder"
2578 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2579 vp9_dxva2_hwaccel_select="vp9_decoder"
2580 wmv3_crystalhd_decoder_select="crystalhd"
2581 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2582 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2583 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2584 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2585 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2586
2587 # parsers
2588 h264_parser_select="h264_decoder"
2589 hevc_parser_select="golomb"
2590 mpegvideo_parser_select="mpegvideo"
2591 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2592 vc1_parser_select="mpegvideo startcode vc1_decoder"
2593
2594 # bitstream_filters
2595 mjpeg2jpeg_bsf_select="jpegtables"
2596
2597 # external libraries
2598 chromaprint_muxer_deps="chromaprint"
2599 libaacplus_encoder_deps="libaacplus"
2600 libcelt_decoder_deps="libcelt"
2601 libdcadec_decoder_deps="libdcadec"
2602 libfaac_encoder_deps="libfaac"
2603 libfaac_encoder_select="audio_frame_queue"
2604 libfdk_aac_decoder_deps="libfdk_aac"
2605 libfdk_aac_encoder_deps="libfdk_aac"
2606 libfdk_aac_encoder_select="audio_frame_queue"
2607 libgme_demuxer_deps="libgme"
2608 libgsm_decoder_deps="libgsm"
2609 libgsm_encoder_deps="libgsm"
2610 libgsm_ms_decoder_deps="libgsm"
2611 libgsm_ms_encoder_deps="libgsm"
2612 libilbc_decoder_deps="libilbc"
2613 libilbc_encoder_deps="libilbc"
2614 libkvazaar_encoder_deps="libkvazaar"
2615 libmodplug_demuxer_deps="libmodplug"
2616 libmp3lame_encoder_deps="libmp3lame"
2617 libmp3lame_encoder_select="audio_frame_queue"
2618 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2619 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2620 libopencore_amrnb_encoder_select="audio_frame_queue"
2621 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2622 libopenh264_encoder_deps="libopenh264"
2623 libopenjpeg_decoder_deps="libopenjpeg"
2624 libopenjpeg_encoder_deps="libopenjpeg"
2625 libopus_decoder_deps="libopus"
2626 libopus_encoder_deps="libopus"
2627 libopus_encoder_select="audio_frame_queue"
2628 libquvi_demuxer_deps="libquvi"
2629 libschroedinger_decoder_deps="libschroedinger"
2630 libschroedinger_encoder_deps="libschroedinger"
2631 libshine_encoder_deps="libshine"
2632 libshine_encoder_select="audio_frame_queue"
2633 libspeex_decoder_deps="libspeex"
2634 libspeex_encoder_deps="libspeex"
2635 libspeex_encoder_select="audio_frame_queue"
2636 libstagefright_h264_decoder_deps="libstagefright_h264"
2637 libtheora_encoder_deps="libtheora"
2638 libtwolame_encoder_deps="libtwolame"
2639 libvo_aacenc_encoder_deps="libvo_aacenc"
2640 libvo_aacenc_encoder_select="audio_frame_queue"
2641 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2642 libvorbis_decoder_deps="libvorbis"
2643 libvorbis_encoder_deps="libvorbis"
2644 libvorbis_encoder_select="audio_frame_queue"
2645 libvpx_vp8_decoder_deps="libvpx"
2646 libvpx_vp8_encoder_deps="libvpx"
2647 libvpx_vp9_decoder_deps="libvpx"
2648 libvpx_vp9_encoder_deps="libvpx"
2649 libwavpack_encoder_deps="libwavpack"
2650 libwebp_encoder_deps="libwebp"
2651 libwebp_anim_encoder_deps="libwebp"
2652 libx262_encoder_deps="libx262"
2653 libx264_encoder_deps="libx264"
2654 libx264rgb_encoder_deps="libx264"
2655 libx264rgb_encoder_select="libx264_encoder"
2656 libx265_encoder_deps="libx265"
2657 libxavs_encoder_deps="libxavs"
2658 libxvid_encoder_deps="libxvid"
2659 libutvideo_decoder_deps="libutvideo"
2660 libutvideo_encoder_deps="libutvideo"
2661 libzvbi_teletext_decoder_deps="libzvbi"
2662 nvenc_encoder_deps="nvenc"
2663 nvenc_h264_encoder_deps="nvenc"
2664 nvenc_hevc_encoder_deps="nvenc"
2665
2666 # demuxers / muxers
2667 ac3_demuxer_select="ac3_parser"
2668 asf_demuxer_select="riffdec"
2669 asf_o_demuxer_select="riffdec"
2670 asf_muxer_select="riffenc"
2671 asf_stream_muxer_select="asf_muxer"
2672 avi_demuxer_select="riffdec exif"
2673 avi_muxer_select="riffenc"
2674 avisynth_demuxer_deps="avisynth"
2675 avisynth_demuxer_select="riffdec"
2676 caf_demuxer_select="riffdec"
2677 dash_muxer_select="mp4_muxer"
2678 dirac_demuxer_select="dirac_parser"
2679 dts_demuxer_select="dca_parser"
2680 dtshd_demuxer_select="dca_parser"
2681 dv_demuxer_select="dvprofile"
2682 dv_muxer_select="dvprofile"
2683 dxa_demuxer_select="riffdec"
2684 eac3_demuxer_select="ac3_parser"
2685 f4v_muxer_select="mov_muxer"
2686 flac_demuxer_select="flac_parser"
2687 hds_muxer_select="flv_muxer"
2688 hls_muxer_select="mpegts_muxer"
2689 image2_alias_pix_demuxer_select="image2_demuxer"
2690 image2_brender_pix_demuxer_select="image2_demuxer"
2691 ipod_muxer_select="mov_muxer"
2692 ismv_muxer_select="mov_muxer"
2693 libnut_demuxer_deps="libnut"
2694 libnut_muxer_deps="libnut"
2695 matroska_audio_muxer_select="matroska_muxer"
2696 matroska_demuxer_select="riffdec"
2697 matroska_demuxer_suggest="bzlib lzo zlib"
2698 matroska_muxer_select="riffenc"
2699 mmf_muxer_select="riffenc"
2700 mov_demuxer_select="riffdec"
2701 mov_demuxer_suggest="zlib"
2702 mov_muxer_select="riffenc rtpenc_chain"
2703 mp3_demuxer_select="mpegaudio_parser"
2704 mp4_muxer_select="mov_muxer"
2705 mpegts_muxer_select="adts_muxer latm_muxer"
2706 mpegtsraw_demuxer_select="mpegts_demuxer"
2707 mxf_d10_muxer_select="mxf_muxer"
2708 mxf_opatom_muxer_select="mxf_muxer"
2709 nut_muxer_select="riffenc"
2710 nuv_demuxer_select="riffdec"
2711 oga_muxer_select="ogg_muxer"
2712 ogg_demuxer_select="dirac_parse"
2713 opus_muxer_select="ogg_muxer"
2714 psp_muxer_select="mov_muxer"
2715 rtp_demuxer_select="sdp_demuxer"
2716 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2717 rtsp_demuxer_select="http_protocol rtpdec"
2718 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2719 sap_demuxer_select="sdp_demuxer"
2720 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2721 sdp_demuxer_select="rtpdec"
2722 smoothstreaming_muxer_select="ismv_muxer"
2723 spdif_muxer_select="aac_parser"
2724 spx_muxer_select="ogg_muxer"
2725 tak_demuxer_select="tak_parser"
2726 tg2_muxer_select="mov_muxer"
2727 tgp_muxer_select="mov_muxer"
2728 vobsub_demuxer_select="mpegps_demuxer"
2729 w64_demuxer_select="wav_demuxer"
2730 w64_muxer_select="wav_muxer"
2731 wav_demuxer_select="riffdec"
2732 wav_muxer_select="riffenc"
2733 webm_muxer_select="riffenc"
2734 wtv_demuxer_select="riffdec"
2735 wtv_muxer_select="riffenc"
2736 xmv_demuxer_select="riffdec"
2737 xwma_demuxer_select="riffdec"
2738
2739 # indevs / outdevs
2740 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2741 alsa_outdev_deps="alsa_asoundlib_h"
2742 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2743 avfoundation_indev_select="avfoundation"
2744 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2745 caca_outdev_deps="libcaca"
2746 decklink_outdev_deps="decklink pthreads"
2747 decklink_outdev_extralibs="-lstdc++"
2748 decklink_indev_deps="decklink pthreads"
2749 decklink_indev_extralibs="-lstdc++"
2750 dshow_indev_deps="IBaseFilter"
2751 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2752 dv1394_indev_deps="dv1394"
2753 dv1394_indev_select="dv_demuxer"
2754 fbdev_indev_deps="linux_fb_h"
2755 fbdev_outdev_deps="linux_fb_h"
2756 gdigrab_indev_deps="CreateDIBSection"
2757 gdigrab_indev_extralibs="-lgdi32"
2758 gdigrab_indev_select="bmp_decoder"
2759 iec61883_indev_deps="libiec61883"
2760 jack_indev_deps="jack_jack_h sem_timedwait"
2761 lavfi_indev_deps="avfilter"
2762 libcdio_indev_deps="libcdio"
2763 libdc1394_indev_deps="libdc1394"
2764 libv4l2_indev_deps="libv4l2"
2765 openal_indev_deps="openal"
2766 opengl_outdev_deps="opengl"
2767 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2768 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2769 pulse_indev_deps="libpulse"
2770 pulse_outdev_deps="libpulse"
2771 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2772 qtkit_indev_select="qtkit"
2773 sdl_outdev_deps="sdl"
2774 sndio_indev_deps="sndio_h"
2775 sndio_outdev_deps="sndio_h"
2776 v4l_indev_deps="linux_videodev_h"
2777 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2778 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2779 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2780 vfwcap_indev_extralibs="-lavicap32"
2781 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2782 xv_outdev_extralibs="-lXv -lX11 -lXext"
2783 x11grab_indev_deps="x11grab"
2784 x11grab_xcb_indev_deps="libxcb"
2785
2786 # protocols
2787 async_protocol_deps="threads"
2788 bluray_protocol_deps="libbluray"
2789 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2790 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2791 ffrtmpcrypt_protocol_select="tcp_protocol"
2792 ffrtmphttp_protocol_deps="!librtmp_protocol"
2793 ffrtmphttp_protocol_select="http_protocol"
2794 ftp_protocol_select="tcp_protocol"
2795 gopher_protocol_select="network"
2796 http_protocol_select="tcp_protocol"
2797 httpproxy_protocol_select="tcp_protocol"
2798 https_protocol_select="tls_protocol"
2799 icecast_protocol_select="http_protocol"
2800 librtmp_protocol_deps="librtmp"
2801 librtmpe_protocol_deps="librtmp"
2802 librtmps_protocol_deps="librtmp"
2803 librtmpt_protocol_deps="librtmp"
2804 librtmpte_protocol_deps="librtmp"
2805 libsmbclient_protocol_deps="libsmbclient gplv3"
2806 libssh_protocol_deps="libssh"
2807 mmsh_protocol_select="http_protocol"
2808 mmst_protocol_select="network"
2809 rtmp_protocol_deps="!librtmp_protocol"
2810 rtmp_protocol_select="tcp_protocol"
2811 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2812 rtmps_protocol_deps="!librtmp_protocol"
2813 rtmps_protocol_select="tls_protocol"
2814 rtmpt_protocol_select="ffrtmphttp_protocol"
2815 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2816 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2817 rtp_protocol_select="udp_protocol"
2818 sctp_protocol_deps="struct_sctp_event_subscribe"
2819 sctp_protocol_select="network"
2820 srtp_protocol_select="rtp_protocol"
2821 tcp_protocol_select="network"
2822 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2823 tls_gnutls_protocol_select="tcp_protocol"
2824 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2825 tls_openssl_protocol_select="tcp_protocol"
2826 tls_schannel_protocol_deps="schannel"
2827 tls_schannel_protocol_select="tcp_protocol"
2828 tls_securetransport_protocol_deps="securetransport"
2829 tls_securetransport_protocol_select="tcp_protocol"
2830 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2831 udp_protocol_select="network"
2832 udplite_protocol_select="network"
2833 unix_protocol_deps="sys_un_h"
2834 unix_protocol_select="network"
2835
2836 # filters
2837 aemphasis_filter_deps="cabs cexp"
2838 amovie_filter_deps="avcodec avformat"
2839 aresample_filter_deps="swresample"
2840 ass_filter_deps="libass"
2841 asyncts_filter_deps="avresample"
2842 atempo_filter_deps="avcodec"
2843 atempo_filter_select="rdft"
2844 azmq_filter_deps="libzmq"
2845 blackframe_filter_deps="gpl"
2846 boxblur_filter_deps="gpl"
2847 bs2b_filter_deps="libbs2b"
2848 colormatrix_filter_deps="gpl"
2849 cover_rect_filter_deps="avcodec avformat gpl"
2850 cropdetect_filter_deps="gpl"
2851 delogo_filter_deps="gpl"
2852 deshake_filter_select="pixelutils"
2853 drawtext_filter_deps="libfreetype"
2854 ebur128_filter_deps="gpl"
2855 eq_filter_deps="gpl"
2856 fftfilt_filter_deps="avcodec"
2857 fftfilt_filter_select="rdft"
2858 flite_filter_deps="libflite"
2859 find_rect_filter_deps="avcodec avformat gpl"
2860 frei0r_filter_deps="frei0r dlopen"
2861 frei0r_src_filter_deps="frei0r dlopen"
2862 fspp_filter_deps="gpl"
2863 geq_filter_deps="gpl"
2864 histeq_filter_deps="gpl"
2865 hqdn3d_filter_deps="gpl"
2866 interlace_filter_deps="gpl"
2867 kerndeint_filter_deps="gpl"
2868 ladspa_filter_deps="ladspa dlopen"
2869 mcdeint_filter_deps="avcodec gpl"
2870 movie_filter_deps="avcodec avformat"
2871 mpdecimate_filter_deps="gpl"
2872 mpdecimate_filter_select="pixelutils"
2873 mptestsrc_filter_deps="gpl"
2874 negate_filter_deps="lut_filter"
2875 perspective_filter_deps="gpl"
2876 pp7_filter_deps="gpl"
2877 ocr_filter_deps="libtesseract"
2878 ocv_filter_deps="libopencv"
2879 owdenoise_filter_deps="gpl"
2880 pan_filter_deps="swresample"
2881 phase_filter_deps="gpl"
2882 pp_filter_deps="gpl postproc"
2883 pullup_filter_deps="gpl"
2884 removelogo_filter_deps="avcodec avformat swscale"
2885 repeatfields_filter_deps="gpl"
2886 resample_filter_deps="avresample"
2887 rubberband_filter_deps="librubberband"
2888 sab_filter_deps="gpl swscale"
2889 scale_filter_deps="swscale"
2890 scale2ref_filter_deps="swscale"
2891 select_filter_select="pixelutils"
2892 smartblur_filter_deps="gpl swscale"
2893 showcqt_filter_deps="avcodec avformat swscale"
2894 showcqt_filter_select="fft"
2895 showfreqs_filter_deps="avcodec"
2896 showfreqs_filter_select="fft"
2897 showspectrum_filter_deps="avcodec"
2898 showspectrum_filter_select="rdft"
2899 sofalizer_filter_deps="netcdf avcodec"
2900 sofalizer_filter_select="fft"
2901 spp_filter_deps="gpl avcodec"
2902 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2903 stereo3d_filter_deps="gpl"
2904 subtitles_filter_deps="avformat avcodec libass"
2905 super2xsai_filter_deps="gpl"
2906 tinterlace_filter_deps="gpl"
2907 vidstabdetect_filter_deps="libvidstab"
2908 vidstabtransform_filter_deps="libvidstab"
2909 pixfmts_super2xsai_test_deps="super2xsai_filter"
2910 tinterlace_merge_test_deps="tinterlace_filter"
2911 tinterlace_pad_test_deps="tinterlace_filter"
2912 uspp_filter_deps="gpl avcodec"
2913 zmq_filter_deps="libzmq"
2914 zoompan_filter_deps="swscale"
2915 zscale_filter_deps="libzimg"
2916
2917 # examples
2918 avio_reading="avformat avcodec avutil"
2919 avio_dir_cmd="avformat avutil"
2920 avcodec_example_deps="avcodec avutil"
2921 decoding_encoding_example_deps="avcodec avformat avutil"
2922 demuxing_decoding_example_deps="avcodec avformat avutil"
2923 extract_mvs_example_deps="avcodec avformat avutil"
2924 filter_audio_example_deps="avfilter avutil"
2925 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2926 filtering_video_example_deps="avfilter avcodec avformat avutil"
2927 metadata_example_deps="avformat avutil"
2928 muxing_example_deps="avcodec avformat avutil swscale"
2929 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2930 remuxing_example_deps="avcodec avformat avutil"
2931 resampling_audio_example_deps="avutil swresample"
2932 scaling_video_example_deps="avutil swscale"
2933 transcode_aac_example_deps="avcodec avformat swresample"
2934 transcoding_example_deps="avfilter avcodec avformat avutil"
2935
2936 # libraries, in linking order
2937 avcodec_deps="avutil"
2938 avdevice_deps="avformat avcodec avutil"
2939 avfilter_deps="avutil"
2940 avformat_deps="avcodec avutil"
2941 avresample_deps="avutil"
2942 postproc_deps="avutil gpl"
2943 swresample_deps="avutil"
2944 swscale_deps="avutil"
2945
2946 # programs
2947 ffmpeg_deps="avcodec avfilter avformat swresample"
2948 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2949                null_filter
2950                setpts_filter trim_filter"
2951 ffplay_deps="avcodec avformat swscale swresample sdl"
2952 ffplay_libs='$sdl_libs'
2953 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2954 ffprobe_deps="avcodec avformat"
2955 ffserver_deps="avformat fork sarestart"
2956 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2957
2958 # documentation
2959 podpages_deps="perl"
2960 manpages_deps="perl pod2man"
2961 htmlpages_deps="perl"
2962 htmlpages_deps_any="makeinfo_html texi2html"
2963 txtpages_deps="perl makeinfo"
2964 doc_deps_any="manpages htmlpages podpages txtpages"
2965
2966 # default parameters
2967
2968 logfile="config.log"
2969
2970 # installation paths
2971 prefix_default="/usr/local"
2972 bindir_default='${prefix}/bin'
2973 datadir_default='${prefix}/share/ffmpeg'
2974 docdir_default='${prefix}/share/doc/ffmpeg'
2975 incdir_default='${prefix}/include'
2976 libdir_default='${prefix}/lib'
2977 mandir_default='${prefix}/share/man'
2978
2979 # toolchain
2980 ar_default="ar"
2981 cc_default="gcc"
2982 cxx_default="g++"
2983 host_cc_default="gcc"
2984 cp_f="cp -f"
2985 doxygen_default="doxygen"
2986 install="install"
2987 ln_s="ln -s -f"
2988 nm_default="nm -g"
2989 objformat="elf"
2990 pkg_config_default=pkg-config
2991 ranlib_default="ranlib"
2992 strip_default="strip"
2993 yasmexe_default="yasm"
2994 windres_default="windres"
2995
2996 # OS
2997 target_os_default=$(tolower $(uname -s))
2998 host_os=$target_os_default
2999
3000 # machine
3001 if test "$target_os_default" = aix; then
3002     arch_default=$(uname -p)
3003     strip_default="strip -X32_64"
3004 else
3005     arch_default=$(uname -m)
3006 fi
3007 cpu="generic"
3008 intrinsics="none"
3009
3010 # configurable options
3011 enable $PROGRAM_LIST
3012 enable $DOCUMENT_LIST
3013 enable $EXAMPLE_LIST
3014 enable $(filter_out avresample $LIBRARY_LIST)
3015 enable stripping
3016
3017 enable asm
3018 enable debug
3019 enable doc
3020 enable faan faandct faanidct
3021 enable optimizations
3022 enable runtime_cpudetect
3023 enable safe_bitstream_reader
3024 enable static
3025 enable swscale_alpha
3026 enable valgrind_backtrace
3027
3028 sws_max_filter_size_default=256
3029 set_default sws_max_filter_size
3030
3031 # Enable hwaccels by default.
3032 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3033 enable xlib
3034
3035 # build settings
3036 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3037 LIBPREF="lib"
3038 LIBSUF=".a"
3039 FULLNAME='$(NAME)$(BUILDSUF)'
3040 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3041 SLIBPREF="lib"
3042 SLIBSUF=".so"
3043 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3044 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3045 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3046 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3047 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3048 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3049
3050 asflags_filter=echo
3051 cflags_filter=echo
3052 ldflags_filter=echo
3053
3054 AS_C='-c'
3055 AS_O='-o $@'
3056 CC_C='-c'
3057 CC_E='-E -o $@'
3058 CC_O='-o $@'
3059 CXX_C='-c'
3060 CXX_O='-o $@'
3061 OBJCC_C='-c'
3062 OBJCC_E='-E -o $@'
3063 OBJCC_O='-o $@'
3064 LD_O='-o $@'
3065 LD_LIB='-l%'
3066 LD_PATH='-L'
3067 HOSTCC_C='-c'
3068 HOSTCC_E='-E -o $@'
3069 HOSTCC_O='-o $@'
3070 HOSTLD_O='-o $@'
3071
3072 host_libs='-lm'
3073 host_cflags_filter=echo
3074 host_ldflags_filter=echo
3075
3076 target_path='$(CURDIR)'
3077
3078 # since the object filename is not given with the -MM flag, the compiler
3079 # is only able to print the basename, and we must add the path ourselves
3080 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3081 DEPFLAGS='-MM'
3082
3083 # find source path
3084 if test -f configure; then
3085     source_path=.
3086 else
3087     source_path=$(cd $(dirname "$0"); pwd)
3088     case "$source_path" in
3089         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3090     esac
3091     test -e "$source_path/config.h" &&
3092         die "Out of tree builds are impossible with config.h in source dir."
3093 fi
3094
3095 for v in "$@"; do
3096     r=${v#*=}
3097     l=${v%"$r"}
3098     r=$(sh_quote "$r")
3099     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3100 done
3101
3102 find_things(){
3103     thing=$1
3104     pattern=$2
3105     file=$source_path/$3
3106     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3107 }
3108
3109 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3110 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3111 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3112 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3113 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3114 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3115 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3116 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3117 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3118 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3119 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3120
3121 ALL_COMPONENTS="
3122     $BSF_LIST
3123     $DECODER_LIST
3124     $DEMUXER_LIST
3125     $ENCODER_LIST
3126     $FILTER_LIST
3127     $HWACCEL_LIST
3128     $INDEV_LIST
3129     $MUXER_LIST
3130     $OUTDEV_LIST
3131     $PARSER_LIST
3132     $PROTOCOL_LIST
3133 "
3134
3135 for n in $COMPONENT_LIST; do
3136     v=$(toupper ${n%s})_LIST
3137     eval enable \$$v
3138     eval ${n}_if_any="\$$v"
3139 done
3140
3141 enable $ARCH_EXT_LIST
3142
3143 die_unknown(){
3144     echo "Unknown option \"$1\"."
3145     echo "See $0 --help for available options."
3146     exit 1
3147 }
3148
3149 print_in_columns() {
3150     cols=$(expr $ncols / 24)
3151     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3152 }
3153
3154 show_list() {
3155     suffix=_$1
3156     shift
3157     echo $* | sed s/$suffix//g | print_in_columns
3158     exit 0
3159 }
3160
3161 rand_list(){
3162     IFS=', '
3163     set -- $*
3164     unset IFS
3165     for thing; do
3166         comp=${thing%:*}
3167         prob=${thing#$comp}
3168         prob=${prob#:}
3169         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3170         echo "prob ${prob:-0.5}"
3171         printf '%s\n' $comp
3172     done
3173 }
3174
3175 do_random(){
3176     action=$1
3177     shift
3178     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3179     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3180 }
3181
3182 for opt do
3183     optval="${opt#*=}"
3184     case "$opt" in
3185         --extra-ldflags=*)
3186             add_ldflags $optval
3187         ;;
3188         --extra-ldexeflags=*)
3189             add_ldexeflags $optval
3190         ;;
3191         --extra-ldlibflags=*)
3192             add_ldlibflags $optval
3193         ;;
3194         --extra-libs=*)
3195             add_extralibs $optval
3196         ;;
3197         --disable-devices)
3198             disable $INDEV_LIST $OUTDEV_LIST
3199         ;;
3200         --enable-debug=*)
3201             debuglevel="$optval"
3202         ;;
3203         --disable-programs)
3204             disable $PROGRAM_LIST
3205         ;;
3206         --disable-everything)
3207             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3208         ;;
3209         --disable-all)
3210             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3211             disable $LIBRARY_LIST $PROGRAM_LIST doc
3212             enable avutil
3213         ;;
3214         --enable-random|--disable-random)
3215             action=${opt%%-random}
3216             do_random ${action#--} $COMPONENT_LIST
3217         ;;
3218         --enable-random=*|--disable-random=*)
3219             action=${opt%%-random=*}
3220             do_random ${action#--} $optval
3221         ;;
3222         --enable-*=*|--disable-*=*)
3223             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3224             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3225             eval list=\$$(toupper $thing)_LIST
3226             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3227             list=$(filter "$name" $list)
3228             [ "$list" = "" ] && warn "Option $opt did not match anything"
3229             $action $list
3230         ;;
3231         --enable-?*|--disable-?*)
3232             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3233             if is_in $option $COMPONENT_LIST; then
3234                 test $action = disable && action=unset
3235                 eval $action \$$(toupper ${option%s})_LIST
3236             elif is_in $option $CMDLINE_SELECT; then
3237                 $action $option
3238             else
3239                 die_unknown $opt
3240             fi
3241         ;;
3242         --list-*)
3243             NAME="${opt#--list-}"
3244             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3245             NAME=${NAME%s}
3246             eval show_list $NAME \$$(toupper $NAME)_LIST
3247         ;;
3248         --help|-h) show_help
3249         ;;
3250         --fatal-warnings) enable fatal_warnings
3251         ;;
3252         *)
3253             optname="${opt%%=*}"
3254             optname="${optname#--}"
3255             optname=$(echo "$optname" | sed 's/-/_/g')
3256             if is_in $optname $CMDLINE_SET; then
3257                 eval $optname='$optval'
3258             elif is_in $optname $CMDLINE_APPEND; then
3259                 append $optname "$optval"
3260             else
3261                 die_unknown $opt
3262             fi
3263         ;;
3264     esac
3265 done
3266
3267 for e in $env; do
3268     eval "export $e"
3269 done
3270
3271 disabled logging && logfile=/dev/null
3272
3273 # Disable all the library-specific components if the library itself
3274 # is disabled, see AVCODEC_LIST and following _LIST variables.
3275
3276 disable_components(){
3277     disabled ${1} && disable $(
3278         eval components="\$$(toupper ${1})_COMPONENTS"
3279         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3280     )
3281 }
3282
3283 map 'disable_components $v' $LIBRARY_LIST
3284
3285 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3286 set >> $logfile
3287
3288 test -n "$valgrind" && toolchain="valgrind-memcheck"
3289
3290 case "$toolchain" in
3291     clang-asan)
3292         cc_default="clang"
3293         add_cflags  -fsanitize=address
3294         add_ldflags -fsanitize=address
3295     ;;
3296     clang-tsan)
3297         cc_default="clang"
3298         add_cflags  -fsanitize=thread -pie
3299         add_ldflags -fsanitize=thread -pie
3300     ;;
3301     clang-usan)
3302         cc_default="clang"
3303         add_cflags  -fsanitize=undefined
3304         add_ldflags -fsanitize=undefined
3305     ;;
3306     gcc-asan)
3307         cc_default="gcc"
3308         add_cflags  -fsanitize=address
3309         add_ldflags -fsanitize=address
3310     ;;
3311     gcc-tsan)
3312         cc_default="gcc"
3313         add_cflags  -fsanitize=thread -pie -fPIC
3314         add_ldflags -fsanitize=thread -pie -fPIC
3315     ;;
3316     gcc-usan)
3317         cc_default="gcc"
3318         add_cflags  -fsanitize=undefined
3319         add_ldflags -fsanitize=undefined
3320     ;;
3321     valgrind-massif)
3322         target_exec_default=${valgrind:-"valgrind"}
3323         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"
3324     ;;
3325     valgrind-memcheck)
3326         target_exec_default=${valgrind:-"valgrind"}
3327         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3328     ;;
3329     msvc)
3330         # Check whether the current MSVC version needs the C99 converter.
3331         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3332         # support enough of C99 to build ffmpeg. Default to the new
3333         # behaviour if the regexp was unable to match anything, since this
3334         # successfully parses the version number of existing supported
3335         # versions that require the converter (MSVC 2010 and 2012).
3336         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3337         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3338             cc_default="cl"
3339         else
3340             cc_default="c99wrap cl"
3341         fi
3342         ld_default="$source_path/compat/windows/mslink"
3343         nm_default="dumpbin -symbols"
3344         ar_default="lib"
3345         case "$arch" in
3346         arm*)
3347             as_default="armasm"
3348             ;;
3349         esac
3350         target_os_default="win32"
3351         # Use a relative path for TMPDIR. This makes sure all the
3352         # ffconf temp files are written with a relative path, avoiding
3353         # issues with msys/win32 path conversion for MSVC parameters
3354         # such as -Fo<file> or -out:<file>.
3355         TMPDIR=.
3356     ;;
3357     icl)
3358         cc_default="icl"
3359         ld_default="xilink"
3360         nm_default="dumpbin -symbols"
3361         ar_default="xilib"
3362         target_os_default="win32"
3363         TMPDIR=.
3364     ;;
3365     gcov)
3366         add_cflags  -fprofile-arcs -ftest-coverage
3367         add_ldflags -fprofile-arcs -ftest-coverage
3368     ;;
3369     hardened)
3370         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3371         add_cflags   -fno-strict-overflow -fstack-protector-all
3372         add_ldflags  -Wl,-z,relro -Wl,-z,now
3373     ;;
3374     ?*)
3375         die "Unknown toolchain $toolchain"
3376     ;;
3377 esac
3378
3379 test -n "$cross_prefix" && enable cross_compile
3380
3381 if enabled cross_compile; then
3382     test -n "$arch" && test -n "$target_os" ||
3383         die "Must specify target arch and OS when cross-compiling"
3384 fi
3385
3386 ar_default="${cross_prefix}${ar_default}"
3387 cc_default="${cross_prefix}${cc_default}"
3388 cxx_default="${cross_prefix}${cxx_default}"
3389 nm_default="${cross_prefix}${nm_default}"
3390 pkg_config_default="${cross_prefix}${pkg_config_default}"
3391 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3392     ranlib_default="${cross_prefix}${ranlib_default} -D"
3393 else
3394     ranlib_default="${cross_prefix}${ranlib_default}"
3395 fi
3396 strip_default="${cross_prefix}${strip_default}"
3397 windres_default="${cross_prefix}${windres_default}"
3398
3399 sysinclude_default="${sysroot}/usr/include"
3400
3401 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3402     target_exec target_os yasmexe
3403 enabled cross_compile || host_cc_default=$cc
3404 set_default host_cc
3405
3406 pkg_config_fail_message=""
3407 if ! $pkg_config --version >/dev/null 2>&1; then
3408     warn "$pkg_config not found, library detection may fail."
3409     pkg_config=false
3410 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3411     pkg_config_fail_message="
3412 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3413 fi
3414
3415 if test $doxygen != $doxygen_default && \
3416   ! $doxygen --version >/dev/null 2>&1; then
3417     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3418 fi
3419
3420 exesuf() {
3421     case $1 in
3422         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3423     esac
3424 }
3425
3426 EXESUF=$(exesuf $target_os)
3427 HOSTEXESUF=$(exesuf $host_os)
3428
3429 # set temporary file name
3430 : ${TMPDIR:=$TEMPDIR}
3431 : ${TMPDIR:=$TMP}
3432 : ${TMPDIR:=/tmp}
3433
3434 if [ -n "$tempprefix" ] ; then
3435     mktemp(){
3436         echo $tempprefix.${HOSTNAME}.${UID}
3437     }
3438 elif ! check_cmd mktemp -u XXXXXX; then
3439     # simple replacement for missing mktemp
3440     # NOT SAFE FOR GENERAL USE
3441     mktemp(){
3442         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3443     }
3444 fi
3445
3446 tmpfile(){
3447     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3448         (set -C; exec > $tmp) 2>/dev/null ||
3449         die "Unable to create temporary file in $TMPDIR."
3450     append TMPFILES $tmp
3451     eval $1=$tmp
3452 }
3453
3454 trap 'rm -f -- $TMPFILES' EXIT
3455
3456 tmpfile TMPASM .asm
3457 tmpfile TMPC   .c
3458 tmpfile TMPCPP .cpp
3459 tmpfile TMPE   $EXESUF
3460 tmpfile TMPH   .h
3461 tmpfile TMPM   .m
3462 tmpfile TMPO   .o
3463 tmpfile TMPS   .S
3464 tmpfile TMPSH  .sh
3465 tmpfile TMPV   .ver
3466
3467 unset -f mktemp
3468
3469 chmod +x $TMPE
3470
3471 # make sure we can execute files in $TMPDIR
3472 cat > $TMPSH 2>> $logfile <<EOF
3473 #! /bin/sh
3474 EOF
3475 chmod +x $TMPSH >> $logfile 2>&1
3476 if ! $TMPSH >> $logfile 2>&1; then
3477     cat <<EOF
3478 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3479 variable to another directory and make sure that it is not mounted noexec.
3480 EOF
3481     die "Sanity test failed."
3482 fi
3483
3484 armasm_flags(){
3485     for flag; do
3486         case $flag in
3487             # Filter out MSVC cl.exe options from cflags that shouldn't
3488             # be passed to gas-preprocessor
3489             -M[TD]*)                                            ;;
3490             *)                  echo $flag                      ;;
3491         esac
3492    done
3493 }
3494
3495 ccc_flags(){
3496     for flag; do
3497         case $flag in
3498             -std=c99)           echo -c99                       ;;
3499             -mcpu=*)            echo -arch ${flag#*=}           ;;
3500             -mieee)             echo -ieee                      ;;
3501             -O*|-fast)          echo $flag                      ;;
3502             -fno-math-errno)    echo -assume nomath_errno       ;;
3503             -g)                 echo -g3                        ;;
3504             -Wall)              echo -msg_enable level2         ;;
3505             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3506             -Wl,*)              echo $flag                      ;;
3507             -f*|-W*)                                            ;;
3508             *)                  echo $flag                      ;;
3509         esac
3510    done
3511 }
3512
3513 cparser_flags(){
3514     for flag; do
3515         case $flag in
3516             -Wno-switch)             echo -Wno-switch-enum ;;
3517             -Wno-format-zero-length) ;;
3518             -Wdisabled-optimization) ;;
3519             -Wno-pointer-sign)       echo -Wno-other ;;
3520             *)                       echo $flag ;;
3521         esac
3522     done
3523 }
3524
3525 msvc_common_flags(){
3526     for flag; do
3527         case $flag in
3528             # In addition to specifying certain flags under the compiler
3529             # specific filters, they must be specified here as well or else the
3530             # generic catch all at the bottom will print the original flag.
3531             -Wall)                ;;
3532             -std=c99)             ;;
3533             # Common flags
3534             -fomit-frame-pointer) ;;
3535             -g)                   echo -Z7 ;;
3536             -fno-math-errno)      ;;
3537             -fno-common)          ;;
3538             -fno-signed-zeros)    ;;
3539             -fPIC)                ;;
3540             -mthumb)              ;;
3541             -march=*)             ;;
3542             -lz)                  echo zlib.lib ;;
3543             -lavifil32)           echo vfw32.lib ;;
3544             -lavicap32)           echo vfw32.lib user32.lib ;;
3545             -l*)                  echo ${flag#-l}.lib ;;
3546             -LARGEADDRESSAWARE)   echo $flag ;;
3547             -L*)                  echo -libpath:${flag#-L} ;;
3548             *)                    echo $flag ;;
3549         esac
3550     done
3551 }
3552
3553 msvc_flags(){
3554     msvc_common_flags "$@"
3555     for flag; do
3556         case $flag in
3557             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3558                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3559                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3560                                        -wd4307 \
3561                                        -wd4273 -wd4554 -wd4701 ;;
3562         esac
3563     done
3564 }
3565
3566 icl_flags(){
3567     msvc_common_flags "$@"
3568     for flag; do
3569         case $flag in
3570             # Despite what Intel's documentation says -Wall, which is supported
3571             # on Windows, does enable remarks so disable them here.
3572             -Wall)                echo $flag -Qdiag-disable:remark ;;
3573             -std=c99)             echo -Qstd=c99 ;;
3574             -flto)                echo -ipo ;;
3575         esac
3576     done
3577 }
3578
3579 icc_flags(){
3580     for flag; do
3581         case $flag in
3582             -flto)                echo -ipo ;;
3583             *)                    echo $flag ;;
3584         esac
3585     done
3586 }
3587
3588 pgi_flags(){
3589     for flag; do
3590         case $flag in
3591             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3592             -fomit-frame-pointer) echo -Mnoframe ;;
3593             -g)                   echo -gopt ;;
3594             *)                    echo $flag ;;
3595         esac
3596     done
3597 }
3598
3599 suncc_flags(){
3600     for flag; do
3601         case $flag in
3602             -march=*|-mcpu=*)
3603                 case "${flag#*=}" in
3604                     native)                   echo -xtarget=native       ;;
3605                     v9|niagara)               echo -xarch=sparc          ;;
3606                     ultrasparc)               echo -xarch=sparcvis       ;;
3607                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3608                     i586|pentium)             echo -xchip=pentium        ;;
3609                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3610                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3611                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3612                     pentium4*)          echo -xtarget=pentium4           ;;
3613                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3614                     *-sse3)             echo -xarch=sse3                 ;;
3615                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3616                     bonnell)                   echo -xarch=ssse3         ;;
3617                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3618                     westmere)                  echo -xtarget=westmere    ;;
3619                     silvermont)                echo -xarch=sse4_2        ;;
3620                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3621                     core-avx*|ivybridge|haswell|broadwell)
3622                                                echo -xarch=avx           ;;
3623                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3624                     btver1)                    echo -xarch=amdsse4a      ;;
3625                     btver2|bdver*)             echo -xarch=avx           ;;
3626                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3627                     k8|opteron|athlon64|athlon-fx)
3628                                                echo -xarch=sse2a         ;;
3629                     athlon*)                   echo -xarch=pentium_proa  ;;
3630                 esac
3631                 ;;
3632             -std=c99)             echo -xc99              ;;
3633             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3634             -fPIC)                echo -KPIC -xcode=pic32 ;;
3635             -W*,*)                echo $flag              ;;
3636             -f*-*|-W*|-mimpure-text)                      ;;
3637             -shared)              echo -G                 ;;
3638             *)                    echo $flag              ;;
3639         esac
3640     done
3641 }
3642
3643 tms470_flags(){
3644     for flag; do
3645         case $flag in
3646             -march=*|-mcpu=*)
3647                 case "${flag#*=}" in
3648                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3649                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3650                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3651                     armv6*|arm11*)          echo -mv=6   ;;
3652                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3653                                             echo -mv=5e  ;;
3654                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3655                 esac
3656                 ;;
3657             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3658             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3659             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3660             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3661             -msoft-float)   echo --float_support=vfplib       ;;
3662             -O[0-3]|-mf=*)  echo $flag                        ;;
3663             -g)             echo -g -mn                       ;;
3664             -pds=*)         echo $flag                        ;;
3665             -D*|-I*)        echo $flag                        ;;
3666             --gcc|--abi=*)  echo $flag                        ;;
3667             -me)            echo $flag                        ;;
3668         esac
3669     done
3670 }
3671
3672 probe_cc(){
3673     pfx=$1
3674     _cc=$2
3675     first=$3
3676
3677     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3678     unset _ld_o _ldflags _ld_lib _ld_path
3679     unset _depflags _DEPCMD _DEPFLAGS
3680     _flags_filter=echo
3681
3682     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3683         true # no-op to avoid reading stdin in following checks
3684     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3685         _type=llvm_gcc
3686         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3687         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3688         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3689         _cflags_speed='-O3'
3690         _cflags_size='-Os'
3691     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3692         _type=gcc
3693         gcc_version=$($_cc --version | head -n1)
3694         gcc_basever=$($_cc -dumpversion)
3695         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3696         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3697         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3698         case $gcc_basever in
3699             2*) ;;
3700             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3701         esac
3702         if [ "$first" = true ]; then
3703             case $gcc_basever in
3704                 4.2*)
3705                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3706             esac
3707         fi
3708         _cflags_speed='-O3'
3709         _cflags_size='-Os'
3710     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3711         _type=icc
3712         _ident=$($_cc --version | head -n1)
3713         _depflags='-MMD'
3714         _cflags_speed='-O3'
3715         _cflags_size='-Os'
3716         _cflags_noopt='-O1'
3717         _flags_filter=icc_flags
3718     elif $_cc -v 2>&1 | grep -q xlc; then
3719         _type=xlc
3720         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3721         _cflags_speed='-O5'
3722         _cflags_size='-O5 -qcompact'
3723     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3724         _type=ccc
3725         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3726         _DEPFLAGS='-M'
3727         _cflags_speed='-fast'
3728         _cflags_size='-O1'
3729         _flags_filter=ccc_flags
3730     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3731         test -d "$sysroot" || die "No valid sysroot specified."
3732         _type=armcc
3733         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3734         armcc_conf="$PWD/armcc.conf"
3735         $_cc --arm_linux_configure                 \
3736              --arm_linux_config_file="$armcc_conf" \
3737              --configure_sysroot="$sysroot"        \
3738              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3739              die "Error creating armcc configuration file."
3740         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3741         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3742         as_default="${cross_prefix}gcc"
3743         _depflags='-MMD'
3744         _cflags_speed='-O3'
3745         _cflags_size='-Os'
3746     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3747         _type=tms470
3748         _ident=$($_cc -version | head -n1 | tr -s ' ')
3749         _flags='--gcc --abi=eabi -me'
3750         _cc_e='-ppl -fe=$@'
3751         _cc_o='-fe=$@'
3752         _depflags='-ppa -ppd=$(@:.o=.d)'
3753         _cflags_speed='-O3 -mf=5'
3754         _cflags_size='-O3 -mf=2'
3755         _flags_filter=tms470_flags
3756     elif $_cc -v 2>&1 | grep -q clang; then
3757         _type=clang
3758         _ident=$($_cc --version 2>/dev/null | head -n1)
3759         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3760         _cflags_speed='-O3'
3761         _cflags_size='-Os'
3762     elif $_cc -V 2>&1 | grep -q Sun; then
3763         _type=suncc
3764         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3765         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3766         _DEPFLAGS='-xM1 -xc99'
3767         _ldflags='-std=c99'
3768         _cflags_speed='-O5'
3769         _cflags_size='-O5 -xspace'
3770         _flags_filter=suncc_flags
3771     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3772         _type=pathscale
3773         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3774         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3775         _cflags_speed='-O2'
3776         _cflags_size='-Os'
3777         _flags_filter='filter_out -Wdisabled-optimization'
3778     elif $_cc -v 2>&1 | grep -q Open64; then
3779         _type=open64
3780         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3781         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3782         _cflags_speed='-O2'
3783         _cflags_size='-Os'
3784         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3785     elif $_cc -V 2>&1 | grep -q Portland; then
3786         _type=pgi
3787         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3788         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3789         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3790         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3791         _cflags_noopt="-O"
3792         _flags_filter=pgi_flags
3793     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3794         _type=armasm
3795         _ident=$($_cc | head -n1)
3796         # 4509: "This form of conditional instruction is deprecated"
3797         _flags="-nologo -ignore 4509"
3798         _flags_filter=armasm_flags
3799     elif $_cc 2>&1 | grep -q Intel; then
3800         _type=icl
3801         _ident=$($_cc 2>&1 | head -n1)
3802         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3803         # Not only is O3 broken on 13.x+ but it is slower on all previous
3804         # versions (tested) as well.
3805         _cflags_speed="-O2"
3806         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3807         if $_cc 2>&1 | grep -q Linker; then
3808             _ld_o='-out:$@'
3809         else
3810             _ld_o='-Fe$@'
3811         fi
3812         _cc_o='-Fo$@'
3813         _cc_e='-P'
3814         _flags_filter=icl_flags
3815         _ld_lib='lib%.a'
3816         _ld_path='-libpath:'
3817         # -Qdiag-error to make icl error when seeing certain unknown arguments
3818         _flags='-nologo -Qdiag-error:4044,10157'
3819         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3820         # with MSVC which enables it by default.
3821         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3822         disable stripping
3823     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3824         _type=msvc
3825         _ident=$($_cc 2>&1 | head -n1)
3826         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3827         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3828         _cflags_speed="-O2"
3829         _cflags_size="-O1"
3830         if $_cc -nologo- 2>&1 | grep -q Linker; then
3831             _ld_o='-out:$@'
3832         else
3833             _ld_o='-Fe$@'
3834         fi
3835         _cc_o='-Fo$@'
3836         _cc_e='-P -Fi$@'
3837         _flags_filter=msvc_flags
3838         _ld_lib='lib%.a'
3839         _ld_path='-libpath:'
3840         _flags='-nologo'
3841         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3842         disable stripping
3843     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3844         _type=cparser
3845         _ident=$($_cc --version | head -n1)
3846         _depflags='-MMD'
3847         _cflags_speed='-O4'
3848         _cflags_size='-O2'
3849         _flags_filter=cparser_flags
3850     fi
3851
3852     eval ${pfx}_type=\$_type
3853     eval ${pfx}_ident=\$_ident
3854 }
3855
3856 set_ccvars(){
3857     eval ${1}_C=\${_cc_c-\${${1}_C}}
3858     eval ${1}_E=\${_cc_e-\${${1}_E}}
3859     eval ${1}_O=\${_cc_o-\${${1}_O}}
3860
3861     if [ -n "$_depflags" ]; then
3862         eval ${1}_DEPFLAGS=\$_depflags
3863     else
3864         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3865         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3866         eval DEP${1}FLAGS=\$_flags
3867     fi
3868 }
3869
3870 probe_cc cc "$cc" "true"
3871 cflags_filter=$_flags_filter
3872 cflags_speed=$_cflags_speed
3873 cflags_size=$_cflags_size
3874 cflags_noopt=$_cflags_noopt
3875 add_cflags $_flags $_cflags
3876 cc_ldflags=$_ldflags
3877 set_ccvars CC
3878
3879 probe_cc hostcc "$host_cc"
3880 host_cflags_filter=$_flags_filter
3881 add_host_cflags  $_flags $_cflags
3882 set_ccvars HOSTCC
3883
3884 test -n "$cc_type" && enable $cc_type ||
3885     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3886
3887 : ${as_default:=$cc}
3888 : ${objcc_default:=$cc}
3889 : ${dep_cc_default:=$cc}
3890 : ${ld_default:=$cc}
3891 : ${host_ld_default:=$host_cc}
3892 set_default ar as objcc dep_cc ld host_ld windres
3893
3894 probe_cc as "$as"
3895 asflags_filter=$_flags_filter
3896 add_asflags $_flags $_cflags
3897 set_ccvars AS
3898
3899 probe_cc objcc "$objcc"
3900 objcflags_filter=$_flags_filter
3901 add_objcflags $_flags $_cflags
3902 set_ccvars OBJC
3903
3904 probe_cc ld "$ld"
3905 ldflags_filter=$_flags_filter
3906 add_ldflags $_flags $_ldflags
3907 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3908 LD_O=${_ld_o-$LD_O}
3909 LD_LIB=${_ld_lib-$LD_LIB}
3910 LD_PATH=${_ld_path-$LD_PATH}
3911
3912 probe_cc hostld "$host_ld"
3913 host_ldflags_filter=$_flags_filter
3914 add_host_ldflags $_flags $_ldflags
3915 HOSTLD_O=${_ld_o-$HOSTLD_O}
3916
3917 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3918     probe_cc depcc "$dep_cc"
3919     CCDEP=${_DEPCMD:-$DEPCMD}
3920     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3921     DEPCCFLAGS=$_flags
3922 fi
3923
3924 if $ar 2>&1 | grep -q Microsoft; then
3925     arflags="-nologo"
3926     ar_o='-out:$@'
3927 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3928     arflags="rq"
3929     ar_o='$@'
3930 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3931     arflags='-Xany -r -c'
3932     ar_o='$@'
3933 elif $ar 2>&1 | grep -q "\[D\] "; then
3934     arflags="rcD"
3935     ar_o='$@'
3936 else
3937     arflags="rc"
3938     ar_o='$@'
3939 fi
3940
3941 add_cflags $extra_cflags
3942 add_cxxflags $extra_cxxflags
3943 add_objcflags $extra_objcflags
3944 add_asflags $extra_cflags
3945
3946 if test -n "$sysroot"; then
3947     case "$cc_type" in
3948         gcc|llvm_gcc|clang)
3949             add_cppflags --sysroot="$sysroot"
3950             add_ldflags --sysroot="$sysroot"
3951 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3952             add_cppflags -isysroot "$sysroot"
3953             add_ldflags -isysroot "$sysroot"
3954         ;;
3955         tms470)
3956             add_cppflags -I"$sysinclude"
3957             add_ldflags  --sysroot="$sysroot"
3958         ;;
3959     esac
3960 fi
3961
3962 if test "$cpu" = host; then
3963     enabled cross_compile &&
3964         die "--cpu=host makes no sense when cross-compiling."
3965
3966     case "$cc_type" in
3967         gcc|llvm_gcc)
3968             check_native(){
3969                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3970                 sed -n "/cc1.*$1=/{
3971                             s/.*$1=\\([^ ]*\\).*/\\1/
3972                             p
3973                             q
3974                         }" $TMPE
3975             }
3976             cpu=$(check_native -march || check_native -mcpu)
3977         ;;
3978     esac
3979
3980     test "${cpu:-host}" = host &&
3981         die "--cpu=host not supported with compiler $cc"
3982 fi
3983
3984 # Deal with common $arch aliases
3985 case "$arch" in
3986     aarch64|arm64)
3987         arch="aarch64"
3988     ;;
3989     arm*|iPad*|iPhone*)
3990         arch="arm"
3991     ;;
3992     mips*|IP*)
3993         arch="mips"
3994     ;;
3995     parisc*|hppa*)
3996         arch="parisc"
3997     ;;
3998     "Power Macintosh"|ppc*|powerpc*)
3999         arch="ppc"
4000     ;;
4001     s390|s390x)
4002         arch="s390"
4003     ;;
4004     sh4|sh)
4005         arch="sh4"
4006     ;;
4007     sun4u|sparc*)
4008         arch="sparc"
4009     ;;
4010     tilegx|tile-gx)
4011         arch="tilegx"
4012     ;;
4013     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4014         arch="x86"
4015     ;;
4016 esac
4017
4018 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4019 enable $arch
4020
4021 # Add processor-specific flags
4022 if enabled aarch64; then
4023
4024     case $cpu in
4025         armv*)
4026             cpuflags="-march=$cpu"
4027         ;;
4028         *)
4029             cpuflags="-mcpu=$cpu"
4030         ;;
4031     esac
4032
4033 elif enabled alpha; then
4034
4035     cpuflags="-mcpu=$cpu"
4036
4037 elif enabled arm; then
4038
4039     check_arm_arch() {
4040         check_cpp_condition stddef.h \
4041             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4042             $cpuflags
4043     }
4044
4045     probe_arm_arch() {
4046         if   check_arm_arch 4;        then echo armv4;
4047         elif check_arm_arch 4T;       then echo armv4t;
4048         elif check_arm_arch 5;        then echo armv5;
4049         elif check_arm_arch 5E;       then echo armv5e;
4050         elif check_arm_arch 5T;       then echo armv5t;
4051         elif check_arm_arch 5TE;      then echo armv5te;
4052         elif check_arm_arch 5TEJ;     then echo armv5te;
4053         elif check_arm_arch 6;        then echo armv6;
4054         elif check_arm_arch 6J;       then echo armv6j;
4055         elif check_arm_arch 6K;       then echo armv6k;
4056         elif check_arm_arch 6Z;       then echo armv6z;
4057         elif check_arm_arch 6ZK;      then echo armv6zk;
4058         elif check_arm_arch 6T2;      then echo armv6t2;
4059         elif check_arm_arch 7;        then echo armv7;
4060         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4061         elif check_arm_arch 7S;       then echo armv7-a;
4062         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4063         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4064         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4065         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4066         fi
4067     }
4068
4069     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4070
4071     case $cpu in
4072         armv*)
4073             cpuflags="-march=$cpu"
4074             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4075         ;;
4076         *)
4077             cpuflags="-mcpu=$cpu"
4078             case $cpu in
4079                 cortex-a*)                               subarch=armv7a  ;;
4080                 cortex-r*)                               subarch=armv7r  ;;
4081                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4082                 arm11*)                                  subarch=armv6   ;;
4083                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4084                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4085                 *)                             subarch=$(probe_arm_arch) ;;
4086             esac
4087         ;;
4088     esac
4089
4090     case "$subarch" in
4091         armv5t*)    enable fast_clz                ;;
4092         armv[6-8]*)
4093             enable fast_clz
4094             disabled fast_unaligned || enable fast_unaligned
4095             ;;
4096     esac
4097
4098 elif enabled avr32; then
4099
4100     case $cpu in
4101         ap7[02]0[0-2])
4102             subarch="avr32_ap"
4103             cpuflags="-mpart=$cpu"
4104         ;;
4105         ap)
4106             subarch="avr32_ap"
4107             cpuflags="-march=$cpu"
4108         ;;
4109         uc3[ab]*)
4110             subarch="avr32_uc"
4111             cpuflags="-mcpu=$cpu"
4112         ;;
4113         uc)
4114             subarch="avr32_uc"
4115             cpuflags="-march=$cpu"
4116         ;;
4117     esac
4118
4119 elif enabled bfin; then
4120
4121     cpuflags="-mcpu=$cpu"
4122
4123 elif enabled mips; then
4124
4125     cpuflags="-march=$cpu"
4126
4127     case $cpu in
4128         24kc)
4129             disable mips64r2
4130             disable mips64r6
4131             disable mipsfpu
4132             disable mipsdsp
4133             disable mipsdspr2
4134             disable msa
4135         ;;
4136         24kf*)
4137             disable mips64r2
4138             disable mips64r6
4139             disable mipsdsp
4140             disable mipsdspr2
4141             disable msa
4142         ;;
4143         24kec|34kc|1004kc)
4144             disable mips64r2
4145             disable mips64r6
4146             disable mipsfpu
4147             disable mipsdspr2
4148             disable msa
4149         ;;
4150         24kef*|34kf*|1004kf*)
4151             disable mips64r2
4152             disable mips64r6
4153             disable mipsdspr2
4154             disable msa
4155         ;;
4156         74kc)
4157             disable mips64r2
4158             disable mips64r6
4159             disable mipsfpu
4160             disable msa
4161         ;;
4162         74kf)
4163             disable mips64r2
4164             disable mips64r6
4165             disable msa
4166         ;;
4167         p5600)
4168             disable mips64r2
4169             disable mips64r6
4170             disable mipsdsp
4171             disable mipsdspr2
4172             check_cflags "-mtune=p5600" &&
4173             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4174             add_asflags "-mfp64"
4175         ;;
4176         i6400)
4177             disable mips32r2
4178             disable mips64r2
4179             disable mipsdsp
4180             disable mipsdspr2
4181             check_cflags "-mtune=i6400 -mabi=64" &&
4182             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4183             check_ldflags "-mabi=64" &&
4184             add_asflags "-mfp64"
4185         ;;
4186         loongson*)
4187             disable mipsfpu
4188             disable mips32r2
4189             disable mips64r2
4190             disable mips64r6
4191             disable mipsdsp
4192             disable mipsdspr2
4193             disable msa
4194             enable local_aligned_8 local_aligned_16 local_aligned_32
4195             enable simd_align_16
4196             enable fast_64bit
4197             enable fast_clz
4198             enable fast_cmov
4199             enable fast_unaligned
4200             disable aligned_stack
4201             case $cpu in
4202                 loongson3*)
4203                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4204                 ;;
4205                 loongson2e)
4206                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4207                 ;;
4208                 loongson2f)
4209                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4210                 ;;
4211             esac
4212         ;;
4213         generic)
4214             disable mips64r6
4215             disable msa
4216         ;;
4217         *)
4218             disable mipsfpu
4219             disable mips32r2
4220             disable mips64r2
4221             disable mips64r6
4222             disable mipsdsp
4223             disable mipsdspr2
4224             disable msa
4225         ;;
4226     esac
4227
4228 elif enabled ppc; then
4229
4230     disable ldbrx
4231
4232     case $(tolower $cpu) in
4233         601|ppc601|powerpc601)
4234             cpuflags="-mcpu=601"
4235             disable altivec
4236         ;;
4237         603*|ppc603*|powerpc603*)
4238             cpuflags="-mcpu=603"
4239             disable altivec
4240         ;;
4241         604*|ppc604*|powerpc604*)
4242             cpuflags="-mcpu=604"
4243             disable altivec
4244         ;;
4245         g3|75*|ppc75*|powerpc75*)
4246             cpuflags="-mcpu=750"
4247             disable altivec
4248         ;;
4249         g4|745*|ppc745*|powerpc745*)
4250             cpuflags="-mcpu=7450"
4251             disable vsx
4252         ;;
4253         74*|ppc74*|powerpc74*)
4254             cpuflags="-mcpu=7400"
4255             disable vsx
4256         ;;
4257         g5|970|ppc970|powerpc970)
4258             cpuflags="-mcpu=970"
4259             disable vsx
4260         ;;
4261         power[3-6]*)
4262             cpuflags="-mcpu=$cpu"
4263             disable vsx
4264         ;;
4265         power[7-8]*)
4266             cpuflags="-mcpu=$cpu"
4267         ;;
4268         cell)
4269             cpuflags="-mcpu=cell"
4270             enable ldbrx
4271             disable vsx
4272         ;;
4273         e500mc)
4274             cpuflags="-mcpu=e500mc"
4275             disable altivec
4276         ;;
4277         e500v2)
4278             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4279             disable altivec
4280             disable dcbzl
4281         ;;
4282         e500)
4283             cpuflags="-mcpu=8540 -mhard-float"
4284             disable altivec
4285             disable dcbzl
4286         ;;
4287     esac
4288
4289 elif enabled sparc; then
4290
4291     case $cpu in
4292         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4293             cpuflags="-mcpu=$cpu"
4294         ;;
4295         ultrasparc*|niagara[234])
4296             cpuflags="-mcpu=$cpu"
4297         ;;
4298     esac
4299
4300 elif enabled x86; then
4301
4302     case $cpu in
4303         i[345]86|pentium)
4304             cpuflags="-march=$cpu"
4305             disable i686
4306             disable mmx
4307         ;;
4308         # targets that do NOT support nopl and conditional mov (cmov)
4309         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4310             cpuflags="-march=$cpu"
4311             disable i686
4312         ;;
4313         # targets that do support nopl and conditional mov (cmov)
4314         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4315         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4316             cpuflags="-march=$cpu"
4317             enable i686
4318             enable fast_cmov
4319         ;;
4320         # targets that do support conditional mov but on which it's slow
4321         pentium4|pentium4m|prescott|nocona)
4322             cpuflags="-march=$cpu"
4323             enable i686
4324             disable fast_cmov
4325         ;;
4326     esac
4327
4328 fi
4329
4330 if [ "$cpu" != generic ]; then
4331     add_cflags  $cpuflags
4332     add_asflags $cpuflags
4333     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4334 fi
4335
4336 # compiler sanity check
4337 check_exec <<EOF
4338 int main(void){ return 0; }
4339 EOF
4340 if test "$?" != 0; then
4341     echo "$cc is unable to create an executable file."
4342     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4343         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4344         echo "Only do this if you know what cross compiling means."
4345     fi
4346     die "C compiler test failed."
4347 fi
4348
4349 add_cppflags -D_ISOC99_SOURCE
4350 add_cxxflags -D__STDC_CONSTANT_MACROS
4351 check_cflags -std=c99
4352 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4353 #include <stdlib.h>
4354 EOF
4355 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4356 #include <stdlib.h>
4357 EOF
4358
4359 add_host_cppflags -D_ISOC99_SOURCE
4360 check_host_cflags -std=c99
4361 check_host_cflags -Wall
4362 check_host_cflags -O3
4363
4364 check_64bit(){
4365     arch32=$1
4366     arch64=$2
4367     expr=$3
4368     check_code cc "" "int test[2*($expr) - 1]" &&
4369         subarch=$arch64 || subarch=$arch32
4370 }
4371
4372 case "$arch" in
4373     aarch64|alpha|ia64)
4374         spic=$shared
4375     ;;
4376     mips)
4377         check_64bit mips mips64 '_MIPS_SIM > 1'
4378         spic=$shared
4379     ;;
4380     parisc)
4381         check_64bit parisc parisc64 'sizeof(void *) > 4'
4382         spic=$shared
4383     ;;
4384     ppc)
4385         check_64bit ppc ppc64 'sizeof(void *) > 4'
4386         spic=$shared
4387     ;;
4388     s390)
4389         check_64bit s390 s390x 'sizeof(void *) > 4'
4390         spic=$shared
4391     ;;
4392     sparc)
4393         check_64bit sparc sparc64 'sizeof(void *) > 4'
4394         spic=$shared
4395     ;;
4396     x86)
4397         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4398         # Treat x32 as x64 for now. Note it also needs spic=$shared
4399         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4400             subarch=x86_64
4401         if test "$subarch" = "x86_64"; then
4402             spic=$shared
4403         fi
4404     ;;
4405     ppc)
4406         check_cc <<EOF && subarch="ppc64"
4407         int test[(int)sizeof(char*) - 7];
4408 EOF
4409     ;;
4410 esac
4411
4412 enable $subarch
4413 enabled spic && enable_weak pic
4414
4415 # OS specific
4416 case $target_os in
4417     aix)
4418         SHFLAGS=-shared
4419         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4420         enabled shared && add_ldflags -Wl,-brtl
4421         ;;
4422     android)
4423         disable symver
4424         enable section_data_rel_ro
4425         SLIB_INSTALL_NAME='$(SLIBNAME)'
4426         SLIB_INSTALL_LINKS=
4427         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4428         ;;
4429     haiku)
4430         prefix_default="/boot/common"
4431         network_extralibs="-lnetwork"
4432         host_libs=
4433         ;;
4434     sunos)
4435         SHFLAGS='-shared -Wl,-h,$$(@F)'
4436         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4437         network_extralibs="-lsocket -lnsl"
4438         add_cppflags -D__EXTENSIONS__
4439         # When using suncc to build, the Solaris linker will mark
4440         # an executable with each instruction set encountered by
4441         # the Solaris assembler.  As our libraries contain their own
4442         # guards for processor-specific code, instead suppress
4443         # generation of the HWCAPS ELF section on Solaris x86 only.
4444         enabled_all suncc x86 &&
4445             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4446             add_ldflags -Wl,-M,mapfile
4447         nm_default='nm -P -g'
4448         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4449         ;;
4450     netbsd)
4451         disable symver
4452         oss_indev_extralibs="-lossaudio"
4453         oss_outdev_extralibs="-lossaudio"
4454         enabled gcc || check_ldflags -Wl,-zmuldefs
4455         ;;
4456     openbsd|bitrig)
4457         disable symver
4458         SHFLAGS='-shared'
4459         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4460         SLIB_INSTALL_LINKS=
4461         oss_indev_extralibs="-lossaudio"
4462         oss_outdev_extralibs="-lossaudio"
4463         ;;
4464     dragonfly)
4465         disable symver
4466         ;;
4467     freebsd)
4468         ;;
4469     bsd/os)
4470         add_extralibs -lpoll -lgnugetopt
4471         strip="strip -d"
4472         ;;
4473     darwin)
4474         enabled ppc && add_asflags -force_cpusubtype_ALL
4475         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4476         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4477         strip="${strip} -x"
4478         add_ldflags -Wl,-dynamic,-search_paths_first
4479         SLIBSUF=".dylib"
4480         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4481         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4482         objformat="macho"
4483         enabled x86_64 && objformat="macho64"
4484         enabled_any pic shared x86_64 ||
4485             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4486         ;;
4487     msys*)
4488         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4489         ;;
4490     mingw32*|mingw64*)
4491         if test $target_os = "mingw32ce"; then
4492             disable network
4493         else
4494             target_os=mingw32
4495         fi
4496         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4497         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4498         LIBTARGET=i386
4499         if enabled x86_64; then
4500             LIBTARGET="i386:x86-64"
4501         elif enabled arm; then
4502             LIBTARGET=arm-wince
4503         fi
4504         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4505         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4506         shlibdir_default="$bindir_default"
4507         SLIBPREF=""
4508         SLIBSUF=".dll"
4509         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4510         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4511         dlltool="${cross_prefix}dlltool"
4512         if check_cmd lib.exe -list; then
4513             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4514             if enabled x86_64; then
4515                 LIBTARGET=x64
4516             fi
4517         elif check_cmd $dlltool --version; then
4518             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4519         fi
4520         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4521         SLIB_INSTALL_LINKS=
4522         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4523         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4524         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4525         objformat="win32"
4526         ranlib=:
4527         enable dos_paths
4528         check_ldflags -Wl,--nxcompat,--dynamicbase
4529         # Lets work around some stupidity in binutils.
4530         # ld will strip relocations from executables even though we need them
4531         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4532         # however ld then forgets what the entry point should be (oops) so we
4533         # have to manually (re)set it.
4534         if enabled x86_32; then
4535             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4536         elif enabled x86_64; then
4537             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4538             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4539             # Set image base >4GB for extra entropy with HEASLR
4540             add_ldexeflags -Wl,--image-base,0x140000000
4541             append SHFLAGS -Wl,--image-base,0x180000000
4542         fi
4543         ;;
4544     win32|win64)
4545         disable symver
4546         if enabled shared; then
4547             # Link to the import library instead of the normal static library
4548             # for shared libs.
4549             LD_LIB='%.lib'
4550             # Cannot build both shared and static libs with MSVC or icl.
4551             disable static
4552         fi
4553         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4554         shlibdir_default="$bindir_default"
4555         SLIBPREF=""
4556         SLIBSUF=".dll"
4557         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4558         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4559         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4560         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4561         SLIB_INSTALL_LINKS=
4562         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4563         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4564         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4565         objformat="win32"
4566         ranlib=:
4567         enable dos_paths
4568         ;;
4569     cygwin*)
4570         target_os=cygwin
4571         shlibdir_default="$bindir_default"
4572         SLIBPREF="cyg"
4573         SLIBSUF=".dll"
4574         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4575         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4576         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4577         SLIB_INSTALL_LINKS=
4578         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4579         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4580         objformat="win32"
4581         enable dos_paths
4582         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4583         ;;
4584     *-dos|freedos|opendos)
4585         network_extralibs="-lsocket"
4586         objformat="coff"
4587         enable dos_paths
4588         add_cppflags -U__STRICT_ANSI__
4589         ;;
4590     linux)
4591         enable dv1394
4592         enable section_data_rel_ro
4593         ;;
4594     irix*)
4595         target_os=irix
4596         ranlib="echo ignoring ranlib"
4597         ;;
4598     os/2*)
4599         strip="lxlite -CS"
4600         ln_s="cp -f"
4601         objformat="aout"
4602         add_cppflags -D_GNU_SOURCE
4603         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4604         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4605         LIBSUF="_s.a"
4606         SLIBPREF=""
4607         SLIBSUF=".dll"
4608         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4609         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4610         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4611             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4612             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4613             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4614             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4615         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4616             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4617         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4618         enable dos_paths
4619         enable_weak os2threads
4620         ;;
4621     gnu/kfreebsd)
4622         add_cppflags -D_BSD_SOURCE
4623         ;;
4624     gnu)
4625         ;;
4626     qnx)
4627         add_cppflags -D_QNX_SOURCE
4628         network_extralibs="-lsocket"
4629         ;;
4630     symbian)
4631         SLIBSUF=".dll"
4632         enable dos_paths
4633         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4634         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4635         add_ldflags -Wl,--target1-abs,--no-undefined \
4636                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4637                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4638         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4639                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4640                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4641         ;;
4642     osf1)
4643         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4644         ;;
4645     minix)
4646         ;;
4647     plan9)
4648         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4649                      -D_REENTRANT_SOURCE        \
4650                      -D_RESEARCH_SOURCE         \
4651                      -DFD_SETSIZE=96            \
4652                      -DHAVE_SOCK_OPTS
4653         add_compat strtod.o strtod=avpriv_strtod
4654         network_extralibs='-lbsd'
4655         exeobjs=compat/plan9/main.o
4656         disable ffserver
4657         cp_f='cp'
4658         ;;
4659     none)
4660         ;;
4661     *)
4662         die "Unknown OS '$target_os'."
4663         ;;
4664 esac
4665
4666 # determine libc flavour
4667
4668 probe_libc(){
4669     pfx=$1
4670     pfx_no_=${pfx%_}
4671     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4672     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4673         eval ${pfx}libc_type=uclibc
4674         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4675     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4676         eval ${pfx}libc_type=glibc
4677         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4678     # MinGW headers can be installed on Cygwin, so check for newlib first.
4679     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4680         eval ${pfx}libc_type=newlib
4681         add_${pfx}cppflags -U__STRICT_ANSI__
4682     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4683     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4684         eval ${pfx}libc_type=mingw64
4685         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4686             add_compat msvcrt/snprintf.o
4687             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4688         fi
4689         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4690         eval test \$${pfx_no_}cc_type = "gcc" &&
4691             add_${pfx}cppflags -D__printf__=__gnu_printf__
4692     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4693          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4694         eval ${pfx}libc_type=mingw32
4695         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4696             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4697             die "ERROR: MinGW32 runtime version must be >= 3.15."
4698         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4699         eval test \$${pfx_no_}cc_type = "gcc" &&
4700             add_${pfx}cppflags -D__printf__=__gnu_printf__
4701     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4702         eval ${pfx}libc_type=msvcrt
4703         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4704             if [ "$pfx" = host_ ]; then
4705                 add_host_cppflags -Dsnprintf=_snprintf
4706             else
4707                 add_compat strtod.o strtod=avpriv_strtod
4708                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4709                                              _snprintf=avpriv_snprintf  \
4710                                              vsnprintf=avpriv_vsnprintf
4711             fi
4712         fi
4713         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4714         # 0x601 by default unless something else is set by the user.
4715         # This can easily lead to us detecting functions only present
4716         # in such new versions and producing binaries requiring windows 7.0.
4717         # Therefore explicitly set the default to XP unless the user has
4718         # set something else on the command line.
4719         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4720         # family. For these cases, configure is free to use any functions
4721         # found in the SDK headers by default. (Alternatively, we could force
4722         # _WIN32_WINNT to 0x0602 in that case.)
4723         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4724             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4725 #ifdef WINAPI_FAMILY
4726 #include <winapifamily.h>
4727 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4728 #error not desktop
4729 #endif
4730 #endif
4731 EOF
4732     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4733         eval ${pfx}libc_type=klibc
4734     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4735         eval ${pfx}libc_type=bionic
4736     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4737         eval ${pfx}libc_type=solaris
4738         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4739     fi
4740     check_${pfx}cc <<EOF
4741 #include <time.h>
4742 void *v = localtime_r;
4743 EOF
4744 test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4745 #include <time.h>
4746 void *v = localtime_r;
4747 EOF
4748
4749 }
4750
4751 probe_libc
4752 test -n "$libc_type" && enable libc_$libc_type
4753 probe_libc host_
4754 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4755
4756 case $libc_type in
4757     bionic)
4758         add_compat strtod.o strtod=avpriv_strtod
4759         ;;
4760 esac
4761
4762 # hacks for compiler/libc/os combinations
4763
4764 if enabled_all tms470 libc_glibc; then
4765     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4766     add_cppflags -D__USER_LABEL_PREFIX__=
4767     add_cppflags -D__builtin_memset=memset
4768     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4769     add_cflags   -pds=48    # incompatible redefinition of macro
4770 fi
4771
4772 if enabled_all ccc libc_glibc; then
4773     add_ldflags -Wl,-z,now  # calls to libots crash without this
4774 fi
4775
4776 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4777     add_cppflags '-I\$(SRC_PATH)/compat/float'
4778
4779 esc(){
4780     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4781 }
4782
4783 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4784
4785 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4786
4787 set_default libdir
4788 : ${shlibdir_default:="$libdir"}
4789 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4790
4791 set_default $PATHS_LIST
4792 set_default nm
4793
4794 # we need to build at least one lib type
4795 if ! enabled_any static shared; then
4796     cat <<EOF
4797 At least one library type must be built.
4798 Specify --enable-static to build the static libraries or --enable-shared to
4799 build the shared libraries as well. To only build the shared libraries specify
4800 --disable-static in addition to --enable-shared.
4801 EOF
4802     exit 1;
4803 fi
4804
4805 die_license_disabled() {
4806     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4807 }
4808
4809 die_license_disabled_gpl() {
4810     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4811 }
4812
4813 die_license_disabled gpl frei0r
4814 die_license_disabled gpl libcdio
4815 die_license_disabled gpl librubberband
4816 die_license_disabled gpl libsmbclient
4817 die_license_disabled gpl libutvideo
4818 die_license_disabled gpl libvidstab
4819 die_license_disabled gpl libx264
4820 die_license_disabled gpl libx265
4821 die_license_disabled gpl libxavs
4822 die_license_disabled gpl libxvid
4823 die_license_disabled gpl libzvbi
4824 die_license_disabled gpl x11grab
4825
4826 die_license_disabled nonfree libaacplus
4827 die_license_disabled nonfree libfaac
4828 die_license_disabled nonfree nvenc
4829 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4830 enabled gpl && die_license_disabled_gpl nonfree openssl
4831
4832 die_license_disabled version3 gmp
4833 die_license_disabled version3 libopencore_amrnb
4834 die_license_disabled version3 libopencore_amrwb
4835 die_license_disabled version3 libsmbclient
4836 die_license_disabled version3 libvo_aacenc
4837 die_license_disabled version3 libvo_amrwbenc
4838
4839 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4840
4841 disabled optimizations || check_cflags -fomit-frame-pointer
4842
4843 enable_weak_pic() {
4844     disabled pic && return
4845     enable pic
4846     add_cppflags -DPIC
4847     case "$target_os" in
4848     mingw*|cygwin*)
4849         ;;
4850     *)
4851         add_cflags -fPIC
4852         ;;
4853     esac
4854     add_asflags  -fPIC
4855 }
4856
4857 enabled pic && enable_weak_pic
4858
4859 check_cc <<EOF || die "Symbol mangling check failed."
4860 int ff_extern;
4861 EOF
4862 sym=$($nm $TMPO | awk '/ff_extern/{ p