455449a71e32ee92c3759597098a59673c65ed2d
[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_2_1_openjpeg_h
1781     openjpeg_2_0_openjpeg_h
1782     openjpeg_1_5_openjpeg_h
1783     OpenGL_gl3_h
1784     poll_h
1785     sndio_h
1786     soundcard_h
1787     sys_mman_h
1788     sys_param_h
1789     sys_resource_h
1790     sys_select_h
1791     sys_soundcard_h
1792     sys_time_h
1793     sys_un_h
1794     sys_videoio_h
1795     termios_h
1796     udplite_h
1797     unistd_h
1798     valgrind_valgrind_h
1799     windows_h
1800     winsock2_h
1801 "
1802
1803 INTRINSICS_LIST="
1804     intrinsics_neon
1805 "
1806
1807 COMPLEX_FUNCS="
1808     cabs
1809     cexp
1810 "
1811
1812 MATH_FUNCS="
1813     atanf
1814     atan2f
1815     cbrt
1816     cbrtf
1817     copysign
1818     cosf
1819     erf
1820     exp10
1821     exp10f
1822     exp2
1823     exp2f
1824     expf
1825     hypot
1826     isinf
1827     isnan
1828     ldexpf
1829     llrint
1830     llrintf
1831     log2
1832     log2f
1833     log10f
1834     lrint
1835     lrintf
1836     powf
1837     rint
1838     round
1839     roundf
1840     sinf
1841     trunc
1842     truncf
1843 "
1844
1845 SYSTEM_FUNCS="
1846     access
1847     aligned_malloc
1848     arc4random
1849     clock_gettime
1850     closesocket
1851     CommandLineToArgvW
1852     CoTaskMemFree
1853     CryptGenRandom
1854     dlopen
1855     fcntl
1856     flt_lim
1857     fork
1858     getaddrinfo
1859     gethrtime
1860     getopt
1861     GetProcessAffinityMask
1862     GetProcessMemoryInfo
1863     GetProcessTimes
1864     getrusage
1865     GetSystemTimeAsFileTime
1866     gettimeofday
1867     glob
1868     glXGetProcAddress
1869     gmtime_r
1870     inet_aton
1871     isatty
1872     jack_port_get_latency_range
1873     kbhit
1874     localtime_r
1875     lstat
1876     lzo1x_999_compress
1877     mach_absolute_time
1878     MapViewOfFile
1879     memalign
1880     mkstemp
1881     mmap
1882     mprotect
1883     nanosleep
1884     PeekNamedPipe
1885     posix_memalign
1886     pthread_cancel
1887     sched_getaffinity
1888     SetConsoleTextAttribute
1889     SetConsoleCtrlHandler
1890     setmode
1891     setrlimit
1892     Sleep
1893     strerror_r
1894     sysconf
1895     sysctl
1896     usleep
1897     UTGetOSTypeFromString
1898     VirtualAlloc
1899     wglGetProcAddress
1900 "
1901
1902 TOOLCHAIN_FEATURES="
1903     as_dn_directive
1904     as_func
1905     as_object_arch
1906     asm_mod_q
1907     attribute_may_alias
1908     attribute_packed
1909     ebp_available
1910     ebx_available
1911     gnu_as
1912     gnu_windres
1913     ibm_asm
1914     inline_asm_labels
1915     inline_asm_nonlocal_labels
1916     inline_asm_direct_symbol_refs
1917     pragma_deprecated
1918     rsync_contimeout
1919     symver_asm_label
1920     symver_gnu_asm
1921     vfp_args
1922     xform_asm
1923     xmm_clobbers
1924 "
1925
1926 TYPES_LIST="
1927     CONDITION_VARIABLE_Ptr
1928     socklen_t
1929     struct_addrinfo
1930     struct_group_source_req
1931     struct_ip_mreq_source
1932     struct_ipv6_mreq
1933     struct_pollfd
1934     struct_rusage_ru_maxrss
1935     struct_sctp_event_subscribe
1936     struct_sockaddr_in6
1937     struct_sockaddr_sa_len
1938     struct_sockaddr_storage
1939     struct_stat_st_mtim_tv_nsec
1940     struct_v4l2_frmivalenum_discrete
1941 "
1942
1943 HAVE_LIST="
1944     $ARCH_EXT_LIST
1945     $(add_suffix _external $ARCH_EXT_LIST)
1946     $(add_suffix _inline   $ARCH_EXT_LIST)
1947     $ARCH_FEATURES
1948     $ATOMICS_LIST
1949     $BUILTIN_LIST
1950     $COMPLEX_FUNCS
1951     $HAVE_LIST_CMDLINE
1952     $HAVE_LIST_PUB
1953     $HEADERS_LIST
1954     $INTRINSICS_LIST
1955     $MATH_FUNCS
1956     $SYSTEM_FUNCS
1957     $THREADS_LIST
1958     $TOOLCHAIN_FEATURES
1959     $TYPES_LIST
1960     atomics_native
1961     dos_paths
1962     dxva2api_cobj
1963     dxva2_lib
1964     winrt
1965     libc_msvcrt
1966     libdc1394_1
1967     libdc1394_2
1968     makeinfo
1969     makeinfo_html
1970     perl
1971     pod2man
1972     sdl
1973     section_data_rel_ro
1974     texi2html
1975     threads
1976     vaapi_x11
1977     vdpau_x11
1978     xlib
1979 "
1980
1981 # options emitted with CONFIG_ prefix but not available on the command line
1982 CONFIG_EXTRA="
1983     aandcttables
1984     ac3dsp
1985     audio_frame_queue
1986     audiodsp
1987     blockdsp
1988     bswapdsp
1989     cabac
1990     dirac_parse
1991     dvprofile
1992     exif
1993     faandct
1994     faanidct
1995     fdctdsp
1996     flacdsp
1997     fmtconvert
1998     frame_thread_encoder
1999     g722dsp
2000     golomb
2001     gplv3
2002     h263dsp
2003     h264chroma
2004     h264dsp
2005     h264pred
2006     h264qpel
2007     hpeldsp
2008     huffman
2009     huffyuvdsp
2010     huffyuvencdsp
2011     idctdsp
2012     iirfilter
2013     imdct15
2014     intrax8
2015     ividsp
2016     jpegtables
2017     libx262
2018     lgplv3
2019     llauddsp
2020     llviddsp
2021     lpc
2022     lzf
2023     me_cmp
2024     mpeg_er
2025     mpegaudio
2026     mpegaudiodsp
2027     mpegvideo
2028     mpegvideoenc
2029     mss34dsp
2030     pixblockdsp
2031     qpeldsp
2032     qsv
2033     qsvdec
2034     qsvenc
2035     rangecoder
2036     riffdec
2037     riffenc
2038     rtpdec
2039     rtpenc_chain
2040     rv34dsp
2041     sinewin
2042     snappy
2043     startcode
2044     texturedsp
2045     texturedspenc
2046     tpeldsp
2047     videodsp
2048     vp3dsp
2049     vp56dsp
2050     vp8dsp
2051     wma_freqs
2052     wmv2dsp
2053 "
2054
2055 CMDLINE_SELECT="
2056     $ARCH_EXT_LIST
2057     $CONFIG_LIST
2058     $HAVE_LIST_CMDLINE
2059     $THREADS_LIST
2060     asm
2061     cross_compile
2062     debug
2063     extra_warnings
2064     logging
2065     lto
2066     optimizations
2067     rpath
2068     stripping
2069 "
2070
2071 PATHS_LIST="
2072     bindir
2073     datadir
2074     docdir
2075     incdir
2076     libdir
2077     mandir
2078     pkgconfigdir
2079     prefix
2080     shlibdir
2081 "
2082
2083 CMDLINE_SET="
2084     $PATHS_LIST
2085     ar
2086     arch
2087     as
2088     assert_level
2089     build_suffix
2090     cc
2091     objcc
2092     cpu
2093     cross_prefix
2094     custom_allocator
2095     cxx
2096     dep_cc
2097     doxygen
2098     env
2099     extra_version
2100     gas
2101     host_cc
2102     host_cflags
2103     host_ld
2104     host_ldflags
2105     host_libs
2106     host_os
2107     install
2108     ld
2109     logfile
2110     malloc_prefix
2111     nm
2112     optflags
2113     pkg_config
2114     pkg_config_flags
2115     progs_suffix
2116     random_seed
2117     ranlib
2118     samples
2119     strip
2120     sws_max_filter_size
2121     sysinclude
2122     sysroot
2123     target_exec
2124     target_os
2125     target_path
2126     target_samples
2127     tempprefix
2128     toolchain
2129     valgrind
2130     yasmexe
2131 "
2132
2133 CMDLINE_APPEND="
2134     extra_cflags
2135     extra_cxxflags
2136     extra_objcflags
2137     host_cppflags
2138 "
2139
2140 # code dependency declarations
2141
2142 # architecture extensions
2143
2144 armv5te_deps="arm"
2145 armv6_deps="arm"
2146 armv6t2_deps="arm"
2147 armv8_deps="aarch64"
2148 neon_deps_any="aarch64 arm"
2149 intrinsics_neon_deps="neon"
2150 vfp_deps_any="aarch64 arm"
2151 vfpv3_deps="vfp"
2152 setend_deps="arm"
2153
2154 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
2155
2156 mipsfpu_deps="mips"
2157 mipsdsp_deps="mips"
2158 mipsdspr2_deps="mips"
2159 mips32r2_deps="mips"
2160 mips64r2_deps="mips"
2161 mips64r6_deps="mips"
2162 msa_deps="mips"
2163 mmi_deps="mips"
2164
2165 altivec_deps="ppc"
2166 dcbzl_deps="ppc"
2167 ldbrx_deps="ppc"
2168 ppc4xx_deps="ppc"
2169 vsx_deps="altivec"
2170 power8_deps="vsx"
2171
2172 cpunop_deps="i686"
2173 x86_64_select="i686"
2174 x86_64_suggest="fast_cmov"
2175
2176 amd3dnow_deps="mmx"
2177 amd3dnowext_deps="amd3dnow"
2178 i686_deps="x86"
2179 mmx_deps="x86"
2180 mmxext_deps="mmx"
2181 sse_deps="mmxext"
2182 sse2_deps="sse"
2183 sse3_deps="sse2"
2184 ssse3_deps="sse3"
2185 sse4_deps="ssse3"
2186 sse42_deps="sse4"
2187 aesni_deps="sse42"
2188 avx_deps="sse42"
2189 xop_deps="avx"
2190 fma3_deps="avx"
2191 fma4_deps="avx"
2192 avx2_deps="avx"
2193
2194 mmx_external_deps="yasm"
2195 mmx_inline_deps="inline_asm"
2196 mmx_suggest="mmx_external mmx_inline"
2197
2198 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
2199     eval dep=\$${ext}_deps
2200     eval ${ext}_external_deps='"${dep}_external"'
2201     eval ${ext}_inline_deps='"${dep}_inline"'
2202     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
2203 done
2204
2205 aligned_stack_if_any="aarch64 ppc x86"
2206 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2207 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2208 fast_unaligned_if_any="aarch64 ppc x86"
2209 simd_align_16_if_any="altivec neon sse"
2210
2211 # system capabilities
2212 symver_if_any="symver_asm_label symver_gnu_asm"
2213 valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
2214
2215 # threading support
2216 atomics_gcc_if_any="sync_val_compare_and_swap atomic_compare_exchange"
2217 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2218 atomics_win32_if="MemoryBarrier"
2219 atomics_native_if_any="$ATOMICS_LIST"
2220 w32threads_deps="atomics_native"
2221 threads_if_any="$THREADS_LIST"
2222
2223 # subsystems
2224 dct_select="rdft"
2225 dirac_parse_select="golomb"
2226 error_resilience_select="me_cmp"
2227 faandct_deps="faan fdctdsp"
2228 faanidct_deps="faan idctdsp"
2229 frame_thread_encoder_deps="encoders threads"
2230 intrax8_select="error_resilience"
2231 mdct_select="fft"
2232 rdft_select="fft"
2233 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2234 mpeg_er_select="error_resilience"
2235 mpegaudio_select="mpegaudiodsp"
2236 mpegaudiodsp_select="dct"
2237 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
2238 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2239 qsvdec_select="qsv"
2240 qsvenc_select="qsv"
2241
2242 # decoders / encoders
2243 aac_decoder_select="imdct15 mdct sinewin"
2244 aac_fixed_decoder_select="mdct sinewin"
2245 aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
2246 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2247 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
2248 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2249 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2250 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2251 adpcm_g722_decoder_select="g722dsp"
2252 adpcm_g722_encoder_select="g722dsp"
2253 aic_decoder_select="golomb idctdsp"
2254 alac_encoder_select="lpc"
2255 als_decoder_select="bswapdsp"
2256 amrnb_decoder_select="lsp"
2257 amrwb_decoder_select="lsp"
2258 amv_decoder_select="sp5x_decoder exif"
2259 amv_encoder_select="aandcttables jpegtables mpegvideoenc"
2260 ape_decoder_select="bswapdsp llauddsp"
2261 apng_decoder_select="zlib"
2262 apng_encoder_select="huffyuvencdsp zlib"
2263 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2264 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2265 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2266 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2267 atrac1_decoder_select="mdct sinewin"
2268 atrac3_decoder_select="mdct"
2269 atrac3p_decoder_select="mdct sinewin"
2270 avrn_decoder_select="exif jpegtables"
2271 bink_decoder_select="blockdsp hpeldsp"
2272 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2273 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2274 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2275 cllc_decoder_select="bswapdsp"
2276 comfortnoise_encoder_select="lpc"
2277 cook_decoder_select="audiodsp mdct sinewin"
2278 cscd_decoder_select="lzo"
2279 cscd_decoder_suggest="zlib"
2280 dca_decoder_select="fmtconvert mdct"
2281 dds_decoder_select="texturedsp"
2282 dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
2283 dnxhd_decoder_select="blockdsp idctdsp"
2284 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2285 dvvideo_decoder_select="dvprofile idctdsp"
2286 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2287 dxa_decoder_select="zlib"
2288 dxv_decoder_select="lzf texturedsp"
2289 eac3_decoder_select="ac3_decoder"
2290 eac3_encoder_select="ac3_encoder"
2291 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2292 eatgq_decoder_select="aandcttables"
2293 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2294 exr_decoder_select="zlib"
2295 ffv1_decoder_select="golomb rangecoder"
2296 ffv1_encoder_select="rangecoder"
2297 ffvhuff_decoder_select="huffyuv_decoder"
2298 ffvhuff_encoder_select="huffyuv_encoder"
2299 fic_decoder_select="golomb"
2300 flac_decoder_select="flacdsp golomb"
2301 flac_encoder_select="bswapdsp flacdsp golomb lpc"
2302 flashsv_decoder_select="zlib"
2303 flashsv_encoder_select="zlib"
2304 flashsv2_encoder_select="zlib"
2305 flashsv2_decoder_select="zlib"
2306 flv_decoder_select="h263_decoder"
2307 flv_encoder_select="h263_encoder"
2308 fourxm_decoder_select="blockdsp bswapdsp"
2309 fraps_decoder_select="bswapdsp huffman"
2310 g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
2311 g729_decoder_select="audiodsp"
2312 h261_decoder_select="mpegvideo"
2313 h261_encoder_select="aandcttables mpegvideoenc"
2314 h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
2315 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2316 h263i_decoder_select="h263_decoder"
2317 h263p_decoder_select="h263_decoder"
2318 h263p_encoder_select="h263_encoder"
2319 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2320 h264_decoder_suggest="error_resilience"
2321 h264_qsv_decoder_deps="libmfx"
2322 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2323 h264_qsv_encoder_deps="libmfx"
2324 h264_qsv_encoder_select="qsvenc"
2325 hap_decoder_select="snappy texturedsp"
2326 hap_encoder_deps="libsnappy"
2327 hap_encoder_select="texturedspenc"
2328 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2329 hevc_qsv_encoder_deps="libmfx"
2330 hevc_qsv_decoder_deps="libmfx"
2331 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
2332 hevc_qsv_encoder_select="qsvenc"
2333 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2334 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2335 iac_decoder_select="imc_decoder"
2336 imc_decoder_select="bswapdsp fft mdct sinewin"
2337 indeo3_decoder_select="hpeldsp"
2338 indeo4_decoder_select="ividsp"
2339 indeo5_decoder_select="ividsp"
2340 interplay_video_decoder_select="hpeldsp"
2341 jpegls_decoder_select="golomb mjpeg_decoder"
2342 jpegls_encoder_select="golomb"
2343 jv_decoder_select="blockdsp"
2344 lagarith_decoder_select="huffyuvdsp"
2345 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2346 loco_decoder_select="golomb"
2347 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2348 metasound_decoder_select="lsp mdct sinewin"
2349 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2350 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
2351 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2352 mjpegb_decoder_select="mjpeg_decoder"
2353 mlp_decoder_select="mlp_parser"
2354 motionpixels_decoder_select="bswapdsp"
2355 mp1_decoder_select="mpegaudio"
2356 mp1float_decoder_select="mpegaudio"
2357 mp2_decoder_select="mpegaudio"
2358 mp2float_decoder_select="mpegaudio"
2359 mp3_decoder_select="mpegaudio"
2360 mp3adu_decoder_select="mpegaudio"
2361 mp3adufloat_decoder_select="mpegaudio"
2362 mp3float_decoder_select="mpegaudio"
2363 mp3on4_decoder_select="mpegaudio"
2364 mp3on4float_decoder_select="mpegaudio"
2365 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2366 mpc8_decoder_select="mpegaudiodsp"
2367 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2368 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2369 mpegvideo_decoder_select="mpegvideo"
2370 mpeg1video_decoder_select="mpegvideo"
2371 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2372 mpeg2video_decoder_select="mpegvideo"
2373 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2374 mpeg2_qsv_decoder_deps="libmfx"
2375 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
2376 mpeg2_qsv_encoder_deps="libmfx"
2377 mpeg2_qsv_encoder_select="qsvenc"
2378 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2379 mpeg4_encoder_select="h263_encoder"
2380 msa1_decoder_select="mss34dsp"
2381 msmpeg4v1_decoder_select="h263_decoder"
2382 msmpeg4v2_decoder_select="h263_decoder"
2383 msmpeg4v2_encoder_select="h263_encoder"
2384 msmpeg4v3_decoder_select="h263_decoder"
2385 msmpeg4v3_encoder_select="h263_encoder"
2386 mss2_decoder_select="vc1_decoder"
2387 mts2_decoder_select="mss34dsp"
2388 mxpeg_decoder_select="mjpeg_decoder"
2389 nellymoser_decoder_select="mdct sinewin"
2390 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2391 nuv_decoder_select="idctdsp lzo"
2392 on2avc_decoder_select="mdct"
2393 opus_decoder_deps="swresample"
2394 opus_decoder_select="imdct15"
2395 png_decoder_select="zlib"
2396 png_encoder_select="huffyuvencdsp zlib"
2397 prores_decoder_select="blockdsp idctdsp"
2398 prores_encoder_select="fdctdsp"
2399 qcelp_decoder_select="lsp"
2400 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2401 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2402 ra_144_decoder_select="audiodsp"
2403 ralf_decoder_select="golomb"
2404 rawvideo_decoder_select="bswapdsp"
2405 rscc_decoder_select="zlib"
2406 rtjpeg_decoder_select="me_cmp"
2407 rv10_decoder_select="h263_decoder"
2408 rv10_encoder_select="h263_encoder"
2409 rv20_decoder_select="h263_decoder"
2410 rv20_encoder_select="h263_encoder"
2411 rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2412 rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
2413 screenpresso_decoder_select="zlib"
2414 shorten_decoder_select="golomb"
2415 sipr_decoder_select="lsp"
2416 snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
2417 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2418 sonic_decoder_select="golomb rangecoder"
2419 sonic_encoder_select="golomb rangecoder"
2420 sonic_ls_encoder_select="golomb rangecoder"
2421 sp5x_decoder_select="mjpeg_decoder"
2422 svq1_decoder_select="hpeldsp"
2423 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2424 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2425 svq3_decoder_suggest="zlib"
2426 tak_decoder_select="audiodsp"
2427 tdsc_decoder_select="zlib mjpeg_decoder"
2428 theora_decoder_select="vp3_decoder"
2429 thp_decoder_select="mjpeg_decoder"
2430 tiff_decoder_suggest="zlib lzma"
2431 tiff_encoder_suggest="zlib"
2432 truehd_decoder_select="mlp_parser"
2433 truemotion2_decoder_select="bswapdsp"
2434 truespeech_decoder_select="bswapdsp"
2435 tscc_decoder_select="zlib"
2436 twinvq_decoder_select="mdct lsp sinewin"
2437 txd_decoder_select="texturedsp"
2438 utvideo_decoder_select="bswapdsp"
2439 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2440 vble_decoder_select="huffyuvdsp"
2441 vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 qpeldsp startcode"
2442 vc1image_decoder_select="vc1_decoder"
2443 vc1_qsv_decoder_deps="libmfx"
2444 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel"
2445 vorbis_decoder_select="mdct"
2446 vorbis_encoder_select="mdct"
2447 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2448 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2449 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2450 vp6a_decoder_select="vp6_decoder"
2451 vp6f_decoder_select="vp6_decoder"
2452 vp7_decoder_select="h264pred videodsp vp8dsp"
2453 vp8_decoder_select="h264pred videodsp vp8dsp"
2454 vp9_decoder_select="videodsp vp9_parser"
2455 webp_decoder_select="vp8_decoder"
2456 wmalossless_decoder_select="llauddsp"
2457 wmapro_decoder_select="mdct sinewin wma_freqs"
2458 wmav1_decoder_select="mdct sinewin wma_freqs"
2459 wmav1_encoder_select="mdct sinewin wma_freqs"
2460 wmav2_decoder_select="mdct sinewin wma_freqs"
2461 wmav2_encoder_select="mdct sinewin wma_freqs"
2462 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2463 wmv1_decoder_select="h263_decoder"
2464 wmv1_encoder_select="h263_encoder"
2465 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2466 wmv2_encoder_select="h263_encoder wmv2dsp"
2467 wmv3_decoder_select="vc1_decoder"
2468 wmv3image_decoder_select="wmv3_decoder"
2469 zerocodec_decoder_select="zlib"
2470 zlib_decoder_select="zlib"
2471 zlib_encoder_select="zlib"
2472 zmbv_decoder_select="zlib"
2473 zmbv_encoder_select="zlib"
2474
2475 # hardware accelerators
2476 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2477 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
2478 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode"
2479 vaapi_deps="va_va_h"
2480 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2481 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2482 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2483 videotoolbox_deps="VideoToolbox_VideoToolbox_h pthreads"
2484 videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework QuartzCore -framework CoreVideo"
2485 xvmc_deps="X11_extensions_XvMClib_h"
2486
2487 h263_vaapi_hwaccel_deps="vaapi"
2488 h263_vaapi_hwaccel_select="h263_decoder"
2489 h263_videotoolbox_hwaccel_deps="videotoolbox"
2490 h263_videotoolbox_hwaccel_select="h263_decoder"
2491 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2492 h264_d3d11va_hwaccel_deps="d3d11va"
2493 h264_d3d11va_hwaccel_select="h264_decoder"
2494 h264_dxva2_hwaccel_deps="dxva2"
2495 h264_dxva2_hwaccel_select="h264_decoder"
2496 h264_mmal_decoder_deps="mmal"
2497 h264_mmal_hwaccel_deps="mmal"
2498 h264_mmal_decoder_select="h264_decoder"
2499 h264_mmal_encoder_deps="mmal"
2500 h264_qsv_hwaccel_deps="libmfx"
2501 h264_vaapi_hwaccel_deps="vaapi"
2502 h264_vaapi_hwaccel_select="h264_decoder"
2503 h264_vda_decoder_deps="vda"
2504 h264_vda_decoder_select="h264_decoder"
2505 h264_vda_hwaccel_deps="vda"
2506 h264_vda_hwaccel_select="h264_decoder"
2507 h264_vda_old_hwaccel_deps="vda"
2508 h264_vda_old_hwaccel_select="h264_decoder"
2509 h264_vdpau_decoder_deps="vdpau"
2510 h264_vdpau_decoder_select="h264_decoder"
2511 h264_vdpau_hwaccel_deps="vdpau"
2512 h264_vdpau_hwaccel_select="h264_decoder"
2513 h264_videotoolbox_hwaccel_deps="videotoolbox"
2514 h264_videotoolbox_hwaccel_select="h264_decoder"
2515 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2516 hevc_d3d11va_hwaccel_select="hevc_decoder"
2517 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2518 hevc_dxva2_hwaccel_select="hevc_decoder"
2519 hevc_qsv_hwaccel_deps="libmfx"
2520 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2521 hevc_vaapi_hwaccel_select="hevc_decoder"
2522 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2523 hevc_vdpau_hwaccel_select="hevc_decoder"
2524 mpeg_vdpau_decoder_deps="vdpau"
2525 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2526 mpeg_xvmc_hwaccel_deps="xvmc"
2527 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2528 mpeg1_vdpau_decoder_deps="vdpau"
2529 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2530 mpeg1_vdpau_hwaccel_deps="vdpau"
2531 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2532 mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
2533 mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
2534 mpeg1_xvmc_hwaccel_deps="xvmc"
2535 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2536 mpeg2_crystalhd_decoder_select="crystalhd"
2537 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2538 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2539 mpeg2_dxva2_hwaccel_deps="dxva2"
2540 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2541 mpeg2_mmal_decoder_deps="mmal"
2542 mpeg2_mmal_hwaccel_deps="mmal"
2543 mpeg2_mmal_decoder_select="mpeg2video_decoder"
2544 mpeg2_qsv_hwaccel_deps="libmfx"
2545 mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
2546 mpeg2_vaapi_hwaccel_deps="vaapi"
2547 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2548 mpeg2_vdpau_hwaccel_deps="vdpau"
2549 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2550 mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
2551 mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
2552 mpeg2_xvmc_hwaccel_deps="xvmc"
2553 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2554 mpeg4_crystalhd_decoder_select="crystalhd"
2555 mpeg4_vaapi_hwaccel_deps="vaapi"
2556 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2557 mpeg4_vdpau_decoder_deps="vdpau"
2558 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2559 mpeg4_vdpau_hwaccel_deps="vdpau"
2560 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2561 mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
2562 mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
2563 msmpeg4_crystalhd_decoder_select="crystalhd"
2564 vc1_crystalhd_decoder_select="crystalhd"
2565 vc1_d3d11va_hwaccel_deps="d3d11va"
2566 vc1_d3d11va_hwaccel_select="vc1_decoder"
2567 vc1_dxva2_hwaccel_deps="dxva2"
2568 vc1_dxva2_hwaccel_select="vc1_decoder"
2569 vc1_vaapi_hwaccel_deps="vaapi"
2570 vc1_vaapi_hwaccel_select="vc1_decoder"
2571 vc1_vdpau_decoder_deps="vdpau"
2572 vc1_vdpau_decoder_select="vc1_decoder"
2573 vc1_vdpau_hwaccel_deps="vdpau"
2574 vc1_vdpau_hwaccel_select="vc1_decoder"
2575 vc1_mmal_decoder_deps="mmal"
2576 vc1_mmal_hwaccel_deps="mmal"
2577 vc1_mmal_decoder_select="vc1_decoder"
2578 vc1_qsv_hwaccel_deps="libmfx"
2579 vc1_qsv_hwaccel_select="qsvdec_vc1"
2580 vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
2581 vp9_d3d11va_hwaccel_select="vp9_decoder"
2582 vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
2583 vp9_dxva2_hwaccel_select="vp9_decoder"
2584 vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9"
2585 vp9_vaapi_hwaccel_select="vp9_decoder"
2586 wmv3_crystalhd_decoder_select="crystalhd"
2587 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2588 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2589 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2590 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2591 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2592
2593 # parsers
2594 h264_parser_select="h264_decoder"
2595 hevc_parser_select="golomb"
2596 mpegvideo_parser_select="mpegvideo"
2597 mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
2598 vc1_parser_select="mpegvideo startcode vc1_decoder"
2599
2600 # bitstream_filters
2601 mjpeg2jpeg_bsf_select="jpegtables"
2602
2603 # external libraries
2604 chromaprint_muxer_deps="chromaprint"
2605 libaacplus_encoder_deps="libaacplus"
2606 libcelt_decoder_deps="libcelt"
2607 libdcadec_decoder_deps="libdcadec"
2608 libfaac_encoder_deps="libfaac"
2609 libfaac_encoder_select="audio_frame_queue"
2610 libfdk_aac_decoder_deps="libfdk_aac"
2611 libfdk_aac_encoder_deps="libfdk_aac"
2612 libfdk_aac_encoder_select="audio_frame_queue"
2613 libgme_demuxer_deps="libgme"
2614 libgsm_decoder_deps="libgsm"
2615 libgsm_encoder_deps="libgsm"
2616 libgsm_ms_decoder_deps="libgsm"
2617 libgsm_ms_encoder_deps="libgsm"
2618 libilbc_decoder_deps="libilbc"
2619 libilbc_encoder_deps="libilbc"
2620 libkvazaar_encoder_deps="libkvazaar"
2621 libmodplug_demuxer_deps="libmodplug"
2622 libmp3lame_encoder_deps="libmp3lame"
2623 libmp3lame_encoder_select="audio_frame_queue"
2624 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2625 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2626 libopencore_amrnb_encoder_select="audio_frame_queue"
2627 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2628 libopenh264_encoder_deps="libopenh264"
2629 libopenjpeg_decoder_deps="libopenjpeg"
2630 libopenjpeg_encoder_deps="libopenjpeg"
2631 libopus_decoder_deps="libopus"
2632 libopus_encoder_deps="libopus"
2633 libopus_encoder_select="audio_frame_queue"
2634 libquvi_demuxer_deps="libquvi"
2635 libschroedinger_decoder_deps="libschroedinger"
2636 libschroedinger_encoder_deps="libschroedinger"
2637 libshine_encoder_deps="libshine"
2638 libshine_encoder_select="audio_frame_queue"
2639 libspeex_decoder_deps="libspeex"
2640 libspeex_encoder_deps="libspeex"
2641 libspeex_encoder_select="audio_frame_queue"
2642 libstagefright_h264_decoder_deps="libstagefright_h264"
2643 libtheora_encoder_deps="libtheora"
2644 libtwolame_encoder_deps="libtwolame"
2645 libvo_aacenc_encoder_deps="libvo_aacenc"
2646 libvo_aacenc_encoder_select="audio_frame_queue"
2647 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2648 libvorbis_decoder_deps="libvorbis"
2649 libvorbis_encoder_deps="libvorbis"
2650 libvorbis_encoder_select="audio_frame_queue"
2651 libvpx_vp8_decoder_deps="libvpx"
2652 libvpx_vp8_encoder_deps="libvpx"
2653 libvpx_vp9_decoder_deps="libvpx"
2654 libvpx_vp9_encoder_deps="libvpx"
2655 libwavpack_encoder_deps="libwavpack"
2656 libwebp_encoder_deps="libwebp"
2657 libwebp_anim_encoder_deps="libwebp"
2658 libx262_encoder_deps="libx262"
2659 libx264_encoder_deps="libx264"
2660 libx264rgb_encoder_deps="libx264"
2661 libx264rgb_encoder_select="libx264_encoder"
2662 libx265_encoder_deps="libx265"
2663 libxavs_encoder_deps="libxavs"
2664 libxvid_encoder_deps="libxvid"
2665 libutvideo_decoder_deps="libutvideo"
2666 libutvideo_encoder_deps="libutvideo"
2667 libzvbi_teletext_decoder_deps="libzvbi"
2668 nvenc_encoder_deps="nvenc"
2669 nvenc_h264_encoder_deps="nvenc"
2670 nvenc_hevc_encoder_deps="nvenc"
2671
2672 # demuxers / muxers
2673 ac3_demuxer_select="ac3_parser"
2674 asf_demuxer_select="riffdec"
2675 asf_o_demuxer_select="riffdec"
2676 asf_muxer_select="riffenc"
2677 asf_stream_muxer_select="asf_muxer"
2678 avi_demuxer_select="riffdec exif"
2679 avi_muxer_select="riffenc"
2680 avisynth_demuxer_deps="avisynth"
2681 avisynth_demuxer_select="riffdec"
2682 caf_demuxer_select="riffdec"
2683 dash_muxer_select="mp4_muxer"
2684 dirac_demuxer_select="dirac_parser"
2685 dts_demuxer_select="dca_parser"
2686 dtshd_demuxer_select="dca_parser"
2687 dv_demuxer_select="dvprofile"
2688 dv_muxer_select="dvprofile"
2689 dxa_demuxer_select="riffdec"
2690 eac3_demuxer_select="ac3_parser"
2691 f4v_muxer_select="mov_muxer"
2692 flac_demuxer_select="flac_parser"
2693 hds_muxer_select="flv_muxer"
2694 hls_muxer_select="mpegts_muxer"
2695 image2_alias_pix_demuxer_select="image2_demuxer"
2696 image2_brender_pix_demuxer_select="image2_demuxer"
2697 ipod_muxer_select="mov_muxer"
2698 ismv_muxer_select="mov_muxer"
2699 libnut_demuxer_deps="libnut"
2700 libnut_muxer_deps="libnut"
2701 matroska_audio_muxer_select="matroska_muxer"
2702 matroska_demuxer_select="riffdec"
2703 matroska_demuxer_suggest="bzlib lzo zlib"
2704 matroska_muxer_select="riffenc"
2705 mmf_muxer_select="riffenc"
2706 mov_demuxer_select="riffdec"
2707 mov_demuxer_suggest="zlib"
2708 mov_muxer_select="riffenc rtpenc_chain"
2709 mp3_demuxer_select="mpegaudio_parser"
2710 mp4_muxer_select="mov_muxer"
2711 mpegts_muxer_select="adts_muxer latm_muxer"
2712 mpegtsraw_demuxer_select="mpegts_demuxer"
2713 mxf_d10_muxer_select="mxf_muxer"
2714 mxf_opatom_muxer_select="mxf_muxer"
2715 nut_muxer_select="riffenc"
2716 nuv_demuxer_select="riffdec"
2717 oga_muxer_select="ogg_muxer"
2718 ogg_demuxer_select="dirac_parse"
2719 opus_muxer_select="ogg_muxer"
2720 psp_muxer_select="mov_muxer"
2721 rtp_demuxer_select="sdp_demuxer"
2722 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol"
2723 rtsp_demuxer_select="http_protocol rtpdec"
2724 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2725 sap_demuxer_select="sdp_demuxer"
2726 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2727 sdp_demuxer_select="rtpdec"
2728 smoothstreaming_muxer_select="ismv_muxer"
2729 spdif_muxer_select="aac_parser"
2730 spx_muxer_select="ogg_muxer"
2731 tak_demuxer_select="tak_parser"
2732 tg2_muxer_select="mov_muxer"
2733 tgp_muxer_select="mov_muxer"
2734 vobsub_demuxer_select="mpegps_demuxer"
2735 w64_demuxer_select="wav_demuxer"
2736 w64_muxer_select="wav_muxer"
2737 wav_demuxer_select="riffdec"
2738 wav_muxer_select="riffenc"
2739 webm_muxer_select="riffenc"
2740 wtv_demuxer_select="riffdec"
2741 wtv_muxer_select="riffenc"
2742 xmv_demuxer_select="riffdec"
2743 xwma_demuxer_select="riffdec"
2744
2745 # indevs / outdevs
2746 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2747 alsa_outdev_deps="alsa_asoundlib_h"
2748 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2749 avfoundation_indev_select="avfoundation"
2750 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2751 caca_outdev_deps="libcaca"
2752 decklink_outdev_deps="decklink pthreads"
2753 decklink_outdev_extralibs="-lstdc++"
2754 decklink_indev_deps="decklink pthreads"
2755 decklink_indev_extralibs="-lstdc++"
2756 dshow_indev_deps="IBaseFilter"
2757 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
2758 dv1394_indev_deps="dv1394"
2759 dv1394_indev_select="dv_demuxer"
2760 fbdev_indev_deps="linux_fb_h"
2761 fbdev_outdev_deps="linux_fb_h"
2762 gdigrab_indev_deps="CreateDIBSection"
2763 gdigrab_indev_extralibs="-lgdi32"
2764 gdigrab_indev_select="bmp_decoder"
2765 iec61883_indev_deps="libiec61883"
2766 jack_indev_deps="jack_jack_h sem_timedwait"
2767 lavfi_indev_deps="avfilter"
2768 libcdio_indev_deps="libcdio"
2769 libdc1394_indev_deps="libdc1394"
2770 libv4l2_indev_deps="libv4l2"
2771 openal_indev_deps="openal"
2772 opengl_outdev_deps="opengl"
2773 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2774 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2775 pulse_indev_deps="libpulse"
2776 pulse_outdev_deps="libpulse"
2777 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2778 qtkit_indev_select="qtkit"
2779 sdl_outdev_deps="sdl"
2780 sndio_indev_deps="sndio_h"
2781 sndio_outdev_deps="sndio_h"
2782 v4l_indev_deps="linux_videodev_h"
2783 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2784 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2785 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2786 vfwcap_indev_extralibs="-lavicap32"
2787 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2788 xv_outdev_extralibs="-lXv -lX11 -lXext"
2789 x11grab_indev_deps="x11grab"
2790 x11grab_xcb_indev_deps="libxcb"
2791
2792 # protocols
2793 async_protocol_deps="threads"
2794 bluray_protocol_deps="libbluray"
2795 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2796 ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
2797 ffrtmpcrypt_protocol_select="tcp_protocol"
2798 ffrtmphttp_protocol_deps="!librtmp_protocol"
2799 ffrtmphttp_protocol_select="http_protocol"
2800 ftp_protocol_select="tcp_protocol"
2801 gopher_protocol_select="network"
2802 http_protocol_select="tcp_protocol"
2803 httpproxy_protocol_select="tcp_protocol"
2804 https_protocol_select="tls_protocol"
2805 icecast_protocol_select="http_protocol"
2806 librtmp_protocol_deps="librtmp"
2807 librtmpe_protocol_deps="librtmp"
2808 librtmps_protocol_deps="librtmp"
2809 librtmpt_protocol_deps="librtmp"
2810 librtmpte_protocol_deps="librtmp"
2811 libsmbclient_protocol_deps="libsmbclient gplv3"
2812 libssh_protocol_deps="libssh"
2813 mmsh_protocol_select="http_protocol"
2814 mmst_protocol_select="network"
2815 rtmp_protocol_deps="!librtmp_protocol"
2816 rtmp_protocol_select="tcp_protocol"
2817 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2818 rtmps_protocol_deps="!librtmp_protocol"
2819 rtmps_protocol_select="tls_protocol"
2820 rtmpt_protocol_select="ffrtmphttp_protocol"
2821 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2822 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2823 rtp_protocol_select="udp_protocol"
2824 sctp_protocol_deps="struct_sctp_event_subscribe"
2825 sctp_protocol_select="network"
2826 srtp_protocol_select="rtp_protocol"
2827 tcp_protocol_select="network"
2828 tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
2829 tls_gnutls_protocol_select="tcp_protocol"
2830 tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
2831 tls_openssl_protocol_select="tcp_protocol"
2832 tls_schannel_protocol_deps="schannel"
2833 tls_schannel_protocol_select="tcp_protocol"
2834 tls_securetransport_protocol_deps="securetransport"
2835 tls_securetransport_protocol_select="tcp_protocol"
2836 tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
2837 udp_protocol_select="network"
2838 udplite_protocol_select="network"
2839 unix_protocol_deps="sys_un_h"
2840 unix_protocol_select="network"
2841
2842 # filters
2843 amovie_filter_deps="avcodec avformat"
2844 aresample_filter_deps="swresample"
2845 ass_filter_deps="libass"
2846 asyncts_filter_deps="avresample"
2847 atempo_filter_deps="avcodec"
2848 atempo_filter_select="rdft"
2849 azmq_filter_deps="libzmq"
2850 blackframe_filter_deps="gpl"
2851 boxblur_filter_deps="gpl"
2852 bs2b_filter_deps="libbs2b"
2853 colormatrix_filter_deps="gpl"
2854 cover_rect_filter_deps="avcodec avformat gpl"
2855 cropdetect_filter_deps="gpl"
2856 delogo_filter_deps="gpl"
2857 deshake_filter_select="pixelutils"
2858 drawtext_filter_deps="libfreetype"
2859 ebur128_filter_deps="gpl"
2860 eq_filter_deps="gpl"
2861 fftfilt_filter_deps="avcodec"
2862 fftfilt_filter_select="rdft"
2863 flite_filter_deps="libflite"
2864 find_rect_filter_deps="avcodec avformat gpl"
2865 frei0r_filter_deps="frei0r dlopen"
2866 frei0r_src_filter_deps="frei0r dlopen"
2867 fspp_filter_deps="gpl"
2868 geq_filter_deps="gpl"
2869 histeq_filter_deps="gpl"
2870 hqdn3d_filter_deps="gpl"
2871 interlace_filter_deps="gpl"
2872 kerndeint_filter_deps="gpl"
2873 ladspa_filter_deps="ladspa dlopen"
2874 mcdeint_filter_deps="avcodec gpl"
2875 movie_filter_deps="avcodec avformat"
2876 mpdecimate_filter_deps="gpl"
2877 mpdecimate_filter_select="pixelutils"
2878 mptestsrc_filter_deps="gpl"
2879 negate_filter_deps="lut_filter"
2880 perspective_filter_deps="gpl"
2881 pp7_filter_deps="gpl"
2882 ocr_filter_deps="libtesseract"
2883 ocv_filter_deps="libopencv"
2884 owdenoise_filter_deps="gpl"
2885 pan_filter_deps="swresample"
2886 phase_filter_deps="gpl"
2887 pp_filter_deps="gpl postproc"
2888 pullup_filter_deps="gpl"
2889 removelogo_filter_deps="avcodec avformat swscale"
2890 repeatfields_filter_deps="gpl"
2891 resample_filter_deps="avresample"
2892 rubberband_filter_deps="librubberband"
2893 sab_filter_deps="gpl swscale"
2894 scale_filter_deps="swscale"
2895 scale2ref_filter_deps="swscale"
2896 select_filter_select="pixelutils"
2897 smartblur_filter_deps="gpl swscale"
2898 showcqt_filter_deps="avcodec avformat swscale"
2899 showcqt_filter_select="fft"
2900 showfreqs_filter_deps="avcodec"
2901 showfreqs_filter_select="fft"
2902 showspectrum_filter_deps="avcodec"
2903 showspectrum_filter_select="rdft"
2904 sofalizer_filter_deps="netcdf avcodec"
2905 sofalizer_filter_select="fft"
2906 spp_filter_deps="gpl avcodec"
2907 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2908 stereo3d_filter_deps="gpl"
2909 subtitles_filter_deps="avformat avcodec libass"
2910 super2xsai_filter_deps="gpl"
2911 tinterlace_filter_deps="gpl"
2912 vidstabdetect_filter_deps="libvidstab"
2913 vidstabtransform_filter_deps="libvidstab"
2914 pixfmts_super2xsai_test_deps="super2xsai_filter"
2915 tinterlace_merge_test_deps="tinterlace_filter"
2916 tinterlace_pad_test_deps="tinterlace_filter"
2917 uspp_filter_deps="gpl avcodec"
2918 zmq_filter_deps="libzmq"
2919 zoompan_filter_deps="swscale"
2920 zscale_filter_deps="libzimg"
2921
2922 # examples
2923 avio_reading="avformat avcodec avutil"
2924 avio_dir_cmd="avformat avutil"
2925 avcodec_example_deps="avcodec avutil"
2926 decoding_encoding_example_deps="avcodec avformat avutil"
2927 demuxing_decoding_example_deps="avcodec avformat avutil"
2928 extract_mvs_example_deps="avcodec avformat avutil"
2929 filter_audio_example_deps="avfilter avutil"
2930 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2931 filtering_video_example_deps="avfilter avcodec avformat avutil"
2932 metadata_example_deps="avformat avutil"
2933 muxing_example_deps="avcodec avformat avutil swscale"
2934 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder vaapi_x11"
2935 remuxing_example_deps="avcodec avformat avutil"
2936 resampling_audio_example_deps="avutil swresample"
2937 scaling_video_example_deps="avutil swscale"
2938 transcode_aac_example_deps="avcodec avformat swresample"
2939 transcoding_example_deps="avfilter avcodec avformat avutil"
2940
2941 # libraries, in linking order
2942 avcodec_deps="avutil"
2943 avdevice_deps="avformat avcodec avutil"
2944 avfilter_deps="avutil"
2945 avformat_deps="avcodec avutil"
2946 avresample_deps="avutil"
2947 postproc_deps="avutil gpl"
2948 swresample_deps="avutil"
2949 swscale_deps="avutil"
2950
2951 # programs
2952 ffmpeg_deps="avcodec avfilter avformat swresample"
2953 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2954                null_filter
2955                setpts_filter trim_filter"
2956 ffplay_deps="avcodec avformat swscale swresample sdl"
2957 ffplay_libs='$sdl_libs'
2958 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2959 ffprobe_deps="avcodec avformat"
2960 ffserver_deps="avformat fork sarestart"
2961 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2962
2963 # documentation
2964 podpages_deps="perl"
2965 manpages_deps="perl pod2man"
2966 htmlpages_deps="perl"
2967 htmlpages_deps_any="makeinfo_html texi2html"
2968 txtpages_deps="perl makeinfo"
2969 doc_deps_any="manpages htmlpages podpages txtpages"
2970
2971 # default parameters
2972
2973 logfile="config.log"
2974
2975 # installation paths
2976 prefix_default="/usr/local"
2977 bindir_default='${prefix}/bin'
2978 datadir_default='${prefix}/share/ffmpeg'
2979 docdir_default='${prefix}/share/doc/ffmpeg'
2980 incdir_default='${prefix}/include'
2981 libdir_default='${prefix}/lib'
2982 mandir_default='${prefix}/share/man'
2983
2984 # toolchain
2985 ar_default="ar"
2986 cc_default="gcc"
2987 cxx_default="g++"
2988 host_cc_default="gcc"
2989 cp_f="cp -f"
2990 doxygen_default="doxygen"
2991 install="install"
2992 ln_s="ln -s -f"
2993 nm_default="nm -g"
2994 objformat="elf"
2995 pkg_config_default=pkg-config
2996 ranlib_default="ranlib"
2997 strip_default="strip"
2998 yasmexe_default="yasm"
2999 windres_default="windres"
3000
3001 # OS
3002 target_os_default=$(tolower $(uname -s))
3003 host_os=$target_os_default
3004
3005 # machine
3006 if test "$target_os_default" = aix; then
3007     arch_default=$(uname -p)
3008     strip_default="strip -X32_64"
3009 else
3010     arch_default=$(uname -m)
3011 fi
3012 cpu="generic"
3013 intrinsics="none"
3014
3015 # configurable options
3016 enable $PROGRAM_LIST
3017 enable $DOCUMENT_LIST
3018 enable $EXAMPLE_LIST
3019 enable $(filter_out avresample $LIBRARY_LIST)
3020 enable stripping
3021
3022 enable asm
3023 enable debug
3024 enable doc
3025 enable faan faandct faanidct
3026 enable optimizations
3027 enable runtime_cpudetect
3028 enable safe_bitstream_reader
3029 enable static
3030 enable swscale_alpha
3031 enable valgrind_backtrace
3032
3033 sws_max_filter_size_default=256
3034 set_default sws_max_filter_size
3035
3036 # Enable hwaccels by default.
3037 enable d3d11va dxva2 vaapi vda vdpau videotoolbox xvmc
3038 enable xlib
3039
3040 # build settings
3041 SHFLAGS='-shared -Wl,-soname,$$(@F)'
3042 LIBPREF="lib"
3043 LIBSUF=".a"
3044 FULLNAME='$(NAME)$(BUILDSUF)'
3045 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
3046 SLIBPREF="lib"
3047 SLIBSUF=".so"
3048 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
3049 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
3050 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
3051 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
3052 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
3053 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
3054
3055 asflags_filter=echo
3056 cflags_filter=echo
3057 ldflags_filter=echo
3058
3059 AS_C='-c'
3060 AS_O='-o $@'
3061 CC_C='-c'
3062 CC_E='-E -o $@'
3063 CC_O='-o $@'
3064 CXX_C='-c'
3065 CXX_O='-o $@'
3066 OBJCC_C='-c'
3067 OBJCC_E='-E -o $@'
3068 OBJCC_O='-o $@'
3069 LD_O='-o $@'
3070 LD_LIB='-l%'
3071 LD_PATH='-L'
3072 HOSTCC_C='-c'
3073 HOSTCC_E='-E -o $@'
3074 HOSTCC_O='-o $@'
3075 HOSTLD_O='-o $@'
3076
3077 host_libs='-lm'
3078 host_cflags_filter=echo
3079 host_ldflags_filter=echo
3080
3081 target_path='$(CURDIR)'
3082
3083 # since the object filename is not given with the -MM flag, the compiler
3084 # is only able to print the basename, and we must add the path ourselves
3085 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
3086 DEPFLAGS='-MM'
3087
3088 # find source path
3089 if test -f configure; then
3090     source_path=.
3091 else
3092     source_path=$(cd $(dirname "$0"); pwd)
3093     case "$source_path" in
3094         *[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
3095     esac
3096     test -e "$source_path/config.h" &&
3097         die "Out of tree builds are impossible with config.h in source dir."
3098 fi
3099
3100 for v in "$@"; do
3101     r=${v#*=}
3102     l=${v%"$r"}
3103     r=$(sh_quote "$r")
3104     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
3105 done
3106
3107 find_things(){
3108     thing=$1
3109     pattern=$2
3110     file=$source_path/$3
3111     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
3112 }
3113
3114 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
3115 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
3116 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
3117 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
3118 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
3119 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
3120 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
3121 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
3122 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
3123 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
3124 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
3125
3126 ALL_COMPONENTS="
3127     $BSF_LIST
3128     $DECODER_LIST
3129     $DEMUXER_LIST
3130     $ENCODER_LIST
3131     $FILTER_LIST
3132     $HWACCEL_LIST
3133     $INDEV_LIST
3134     $MUXER_LIST
3135     $OUTDEV_LIST
3136     $PARSER_LIST
3137     $PROTOCOL_LIST
3138 "
3139
3140 for n in $COMPONENT_LIST; do
3141     v=$(toupper ${n%s})_LIST
3142     eval enable \$$v
3143     eval ${n}_if_any="\$$v"
3144 done
3145
3146 enable $ARCH_EXT_LIST
3147
3148 die_unknown(){
3149     echo "Unknown option \"$1\"."
3150     echo "See $0 --help for available options."
3151     exit 1
3152 }
3153
3154 print_in_columns() {
3155     cols=$(expr $ncols / 24)
3156     cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
3157 }
3158
3159 show_list() {
3160     suffix=_$1
3161     shift
3162     echo $* | sed s/$suffix//g | print_in_columns
3163     exit 0
3164 }
3165
3166 rand_list(){
3167     IFS=', '
3168     set -- $*
3169     unset IFS
3170     for thing; do
3171         comp=${thing%:*}
3172         prob=${thing#$comp}
3173         prob=${prob#:}
3174         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
3175         echo "prob ${prob:-0.5}"
3176         printf '%s\n' $comp
3177     done
3178 }
3179
3180 do_random(){
3181     action=$1
3182     shift
3183     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
3184     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
3185 }
3186
3187 for opt do
3188     optval="${opt#*=}"
3189     case "$opt" in
3190         --extra-ldflags=*)
3191             add_ldflags $optval
3192         ;;
3193         --extra-ldexeflags=*)
3194             add_ldexeflags $optval
3195         ;;
3196         --extra-ldlibflags=*)
3197             add_ldlibflags $optval
3198         ;;
3199         --extra-libs=*)
3200             add_extralibs $optval
3201         ;;
3202         --disable-devices)
3203             disable $INDEV_LIST $OUTDEV_LIST
3204         ;;
3205         --enable-debug=*)
3206             debuglevel="$optval"
3207         ;;
3208         --disable-programs)
3209             disable $PROGRAM_LIST
3210         ;;
3211         --disable-everything)
3212             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3213         ;;
3214         --disable-all)
3215             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
3216             disable $LIBRARY_LIST $PROGRAM_LIST doc
3217             enable avutil
3218         ;;
3219         --enable-random|--disable-random)
3220             action=${opt%%-random}
3221             do_random ${action#--} $COMPONENT_LIST
3222         ;;
3223         --enable-random=*|--disable-random=*)
3224             action=${opt%%-random=*}
3225             do_random ${action#--} $optval
3226         ;;
3227         --enable-*=*|--disable-*=*)
3228             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
3229             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
3230             eval list=\$$(toupper $thing)_LIST
3231             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
3232             list=$(filter "$name" $list)
3233             [ "$list" = "" ] && warn "Option $opt did not match anything"
3234             $action $list
3235         ;;
3236         --enable-?*|--disable-?*)
3237             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
3238             if is_in $option $COMPONENT_LIST; then
3239                 test $action = disable && action=unset
3240                 eval $action \$$(toupper ${option%s})_LIST
3241             elif is_in $option $CMDLINE_SELECT; then
3242                 $action $option
3243             else
3244                 die_unknown $opt
3245             fi
3246         ;;
3247         --list-*)
3248             NAME="${opt#--list-}"
3249             is_in $NAME $COMPONENT_LIST || die_unknown $opt
3250             NAME=${NAME%s}
3251             eval show_list $NAME \$$(toupper $NAME)_LIST
3252         ;;
3253         --help|-h) show_help
3254         ;;
3255         --fatal-warnings) enable fatal_warnings
3256         ;;
3257         *)
3258             optname="${opt%%=*}"
3259             optname="${optname#--}"
3260             optname=$(echo "$optname" | sed 's/-/_/g')
3261             if is_in $optname $CMDLINE_SET; then
3262                 eval $optname='$optval'
3263             elif is_in $optname $CMDLINE_APPEND; then
3264                 append $optname "$optval"
3265             else
3266                 die_unknown $opt
3267             fi
3268         ;;
3269     esac
3270 done
3271
3272 for e in $env; do
3273     eval "export $e"
3274 done
3275
3276 disabled logging && logfile=/dev/null
3277
3278 # Disable all the library-specific components if the library itself
3279 # is disabled, see AVCODEC_LIST and following _LIST variables.
3280
3281 disable_components(){
3282     disabled ${1} && disable $(
3283         eval components="\$$(toupper ${1})_COMPONENTS"
3284         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
3285     )
3286 }
3287
3288 map 'disable_components $v' $LIBRARY_LIST
3289
3290 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
3291 set >> $logfile
3292
3293 test -n "$valgrind" && toolchain="valgrind-memcheck"
3294
3295 case "$toolchain" in
3296     clang-asan)
3297         cc_default="clang"
3298         add_cflags  -fsanitize=address
3299         add_ldflags -fsanitize=address
3300     ;;
3301     clang-tsan)
3302         cc_default="clang"
3303         add_cflags  -fsanitize=thread -pie
3304         add_ldflags -fsanitize=thread -pie
3305     ;;
3306     clang-usan)
3307         cc_default="clang"
3308         add_cflags  -fsanitize=undefined
3309         add_ldflags -fsanitize=undefined
3310     ;;
3311     gcc-asan)
3312         cc_default="gcc"
3313         add_cflags  -fsanitize=address
3314         add_ldflags -fsanitize=address
3315     ;;
3316     gcc-tsan)
3317         cc_default="gcc"
3318         add_cflags  -fsanitize=thread -pie -fPIC
3319         add_ldflags -fsanitize=thread -pie -fPIC
3320     ;;
3321     gcc-usan)
3322         cc_default="gcc"
3323         add_cflags  -fsanitize=undefined
3324         add_ldflags -fsanitize=undefined
3325     ;;
3326     valgrind-massif)
3327         target_exec_default=${valgrind:-"valgrind"}
3328         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"
3329     ;;
3330     valgrind-memcheck)
3331         target_exec_default=${valgrind:-"valgrind"}
3332         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3333     ;;
3334     msvc)
3335         # Check whether the current MSVC version needs the C99 converter.
3336         # From MSVC 2013 (compiler major version 18) onwards, it does actually
3337         # support enough of C99 to build ffmpeg. Default to the new
3338         # behaviour if the regexp was unable to match anything, since this
3339         # successfully parses the version number of existing supported
3340         # versions that require the converter (MSVC 2010 and 2012).
3341         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3342         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3343             cc_default="cl"
3344         else
3345             cc_default="c99wrap cl"
3346         fi
3347         ld_default="$source_path/compat/windows/mslink"
3348         nm_default="dumpbin -symbols"
3349         ar_default="lib"
3350         case "$arch" in
3351         arm*)
3352             as_default="armasm"
3353             ;;
3354         esac
3355         target_os_default="win32"
3356         # Use a relative path for TMPDIR. This makes sure all the
3357         # ffconf temp files are written with a relative path, avoiding
3358         # issues with msys/win32 path conversion for MSVC parameters
3359         # such as -Fo<file> or -out:<file>.
3360         TMPDIR=.
3361     ;;
3362     icl)
3363         cc_default="icl"
3364         ld_default="xilink"
3365         nm_default="dumpbin -symbols"
3366         ar_default="xilib"
3367         target_os_default="win32"
3368         TMPDIR=.
3369     ;;
3370     gcov)
3371         add_cflags  -fprofile-arcs -ftest-coverage
3372         add_ldflags -fprofile-arcs -ftest-coverage
3373     ;;
3374     hardened)
3375         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3376         add_cflags   -fno-strict-overflow -fstack-protector-all
3377         add_ldflags  -Wl,-z,relro -Wl,-z,now
3378     ;;
3379     ?*)
3380         die "Unknown toolchain $toolchain"
3381     ;;
3382 esac
3383
3384 test -n "$cross_prefix" && enable cross_compile
3385
3386 if enabled cross_compile; then
3387     test -n "$arch" && test -n "$target_os" ||
3388         die "Must specify target arch and OS when cross-compiling"
3389 fi
3390
3391 ar_default="${cross_prefix}${ar_default}"
3392 cc_default="${cross_prefix}${cc_default}"
3393 cxx_default="${cross_prefix}${cxx_default}"
3394 nm_default="${cross_prefix}${nm_default}"
3395 pkg_config_default="${cross_prefix}${pkg_config_default}"
3396 if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
3397     ranlib_default="${cross_prefix}${ranlib_default} -D"
3398 else
3399     ranlib_default="${cross_prefix}${ranlib_default}"
3400 fi
3401 strip_default="${cross_prefix}${strip_default}"
3402 windres_default="${cross_prefix}${windres_default}"
3403
3404 sysinclude_default="${sysroot}/usr/include"
3405
3406 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3407     target_exec target_os yasmexe
3408 enabled cross_compile || host_cc_default=$cc
3409 set_default host_cc
3410
3411 pkg_config_fail_message=""
3412 if ! $pkg_config --version >/dev/null 2>&1; then
3413     warn "$pkg_config not found, library detection may fail."
3414     pkg_config=false
3415 elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
3416     pkg_config_fail_message="
3417 Note: When building a static binary, add --pkg-config-flags=\"--static\"."
3418 fi
3419
3420 if test $doxygen != $doxygen_default && \
3421   ! $doxygen --version >/dev/null 2>&1; then
3422     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3423 fi
3424
3425 exesuf() {
3426     case $1 in
3427         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3428     esac
3429 }
3430
3431 EXESUF=$(exesuf $target_os)
3432 HOSTEXESUF=$(exesuf $host_os)
3433
3434 # set temporary file name
3435 : ${TMPDIR:=$TEMPDIR}
3436 : ${TMPDIR:=$TMP}
3437 : ${TMPDIR:=/tmp}
3438
3439 if [ -n "$tempprefix" ] ; then
3440     mktemp(){
3441         echo $tempprefix.${HOSTNAME}.${UID}
3442     }
3443 elif ! check_cmd mktemp -u XXXXXX; then
3444     # simple replacement for missing mktemp
3445     # NOT SAFE FOR GENERAL USE
3446     mktemp(){
3447         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3448     }
3449 fi
3450
3451 tmpfile(){
3452     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3453         (set -C; exec > $tmp) 2>/dev/null ||
3454         die "Unable to create temporary file in $TMPDIR."
3455     append TMPFILES $tmp
3456     eval $1=$tmp
3457 }
3458
3459 trap 'rm -f -- $TMPFILES' EXIT
3460
3461 tmpfile TMPASM .asm
3462 tmpfile TMPC   .c
3463 tmpfile TMPCPP .cpp
3464 tmpfile TMPE   $EXESUF
3465 tmpfile TMPH   .h
3466 tmpfile TMPM   .m
3467 tmpfile TMPO   .o
3468 tmpfile TMPS   .S
3469 tmpfile TMPSH  .sh
3470 tmpfile TMPV   .ver
3471
3472 unset -f mktemp
3473
3474 chmod +x $TMPE
3475
3476 # make sure we can execute files in $TMPDIR
3477 cat > $TMPSH 2>> $logfile <<EOF
3478 #! /bin/sh
3479 EOF
3480 chmod +x $TMPSH >> $logfile 2>&1
3481 if ! $TMPSH >> $logfile 2>&1; then
3482     cat <<EOF
3483 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3484 variable to another directory and make sure that it is not mounted noexec.
3485 EOF
3486     die "Sanity test failed."
3487 fi
3488
3489 armasm_flags(){
3490     for flag; do
3491         case $flag in
3492             # Filter out MSVC cl.exe options from cflags that shouldn't
3493             # be passed to gas-preprocessor
3494             -M[TD]*)                                            ;;
3495             *)                  echo $flag                      ;;
3496         esac
3497    done
3498 }
3499
3500 ccc_flags(){
3501     for flag; do
3502         case $flag in
3503             -std=c99)           echo -c99                       ;;
3504             -mcpu=*)            echo -arch ${flag#*=}           ;;
3505             -mieee)             echo -ieee                      ;;
3506             -O*|-fast)          echo $flag                      ;;
3507             -fno-math-errno)    echo -assume nomath_errno       ;;
3508             -g)                 echo -g3                        ;;
3509             -Wall)              echo -msg_enable level2         ;;
3510             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3511             -Wl,*)              echo $flag                      ;;
3512             -f*|-W*)                                            ;;
3513             *)                  echo $flag                      ;;
3514         esac
3515    done
3516 }
3517
3518 cparser_flags(){
3519     for flag; do
3520         case $flag in
3521             -Wno-switch)             echo -Wno-switch-enum ;;
3522             -Wno-format-zero-length) ;;
3523             -Wdisabled-optimization) ;;
3524             -Wno-pointer-sign)       echo -Wno-other ;;
3525             *)                       echo $flag ;;
3526         esac
3527     done
3528 }
3529
3530 msvc_common_flags(){
3531     for flag; do
3532         case $flag in
3533             # In addition to specifying certain flags under the compiler
3534             # specific filters, they must be specified here as well or else the
3535             # generic catch all at the bottom will print the original flag.
3536             -Wall)                ;;
3537             -std=c99)             ;;
3538             # Common flags
3539             -fomit-frame-pointer) ;;
3540             -g)                   echo -Z7 ;;
3541             -fno-math-errno)      ;;
3542             -fno-common)          ;;
3543             -fno-signed-zeros)    ;;
3544             -fPIC)                ;;
3545             -mthumb)              ;;
3546             -march=*)             ;;
3547             -lz)                  echo zlib.lib ;;
3548             -lavifil32)           echo vfw32.lib ;;
3549             -lavicap32)           echo vfw32.lib user32.lib ;;
3550             -l*)                  echo ${flag#-l}.lib ;;
3551             -LARGEADDRESSAWARE)   echo $flag ;;
3552             -L*)                  echo -libpath:${flag#-L} ;;
3553             *)                    echo $flag ;;
3554         esac
3555     done
3556 }
3557
3558 msvc_flags(){
3559     msvc_common_flags "$@"
3560     for flag; do
3561         case $flag in
3562             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3563                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3564                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3565                                        -wd4307 \
3566                                        -wd4273 -wd4554 -wd4701 ;;
3567         esac
3568     done
3569 }
3570
3571 icl_flags(){
3572     msvc_common_flags "$@"
3573     for flag; do
3574         case $flag in
3575             # Despite what Intel's documentation says -Wall, which is supported
3576             # on Windows, does enable remarks so disable them here.
3577             -Wall)                echo $flag -Qdiag-disable:remark ;;
3578             -std=c99)             echo -Qstd=c99 ;;
3579             -flto)                echo -ipo ;;
3580         esac
3581     done
3582 }
3583
3584 icc_flags(){
3585     for flag; do
3586         case $flag in
3587             -flto)                echo -ipo ;;
3588             *)                    echo $flag ;;
3589         esac
3590     done
3591 }
3592
3593 pgi_flags(){
3594     for flag; do
3595         case $flag in
3596             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3597             -fomit-frame-pointer) echo -Mnoframe ;;
3598             -g)                   echo -gopt ;;
3599             *)                    echo $flag ;;
3600         esac
3601     done
3602 }
3603
3604 suncc_flags(){
3605     for flag; do
3606         case $flag in
3607             -march=*|-mcpu=*)
3608                 case "${flag#*=}" in
3609                     native)                   echo -xtarget=native       ;;
3610                     v9|niagara)               echo -xarch=sparc          ;;
3611                     ultrasparc)               echo -xarch=sparcvis       ;;
3612                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3613                     i586|pentium)             echo -xchip=pentium        ;;
3614                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3615                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3616                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3617                     pentium4*)          echo -xtarget=pentium4           ;;
3618                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3619                     *-sse3)             echo -xarch=sse3                 ;;
3620                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3621                     bonnell)                   echo -xarch=ssse3         ;;
3622                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3623                     westmere)                  echo -xtarget=westmere    ;;
3624                     silvermont)                echo -xarch=sse4_2        ;;
3625                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3626                     core-avx*|ivybridge|haswell|broadwell)
3627                                                echo -xarch=avx           ;;
3628                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3629                     btver1)                    echo -xarch=amdsse4a      ;;
3630                     btver2|bdver*)             echo -xarch=avx           ;;
3631                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3632                     k8|opteron|athlon64|athlon-fx)
3633                                                echo -xarch=sse2a         ;;
3634                     athlon*)                   echo -xarch=pentium_proa  ;;
3635                 esac
3636                 ;;
3637             -std=c99)             echo -xc99              ;;
3638             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3639             -fPIC)                echo -KPIC -xcode=pic32 ;;
3640             -W*,*)                echo $flag              ;;
3641             -f*-*|-W*|-mimpure-text)                      ;;
3642             -shared)              echo -G                 ;;
3643             *)                    echo $flag              ;;
3644         esac
3645     done
3646 }
3647
3648 tms470_flags(){
3649     for flag; do
3650         case $flag in
3651             -march=*|-mcpu=*)
3652                 case "${flag#*=}" in
3653                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3654                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3655                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3656                     armv6*|arm11*)          echo -mv=6   ;;
3657                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3658                                             echo -mv=5e  ;;
3659                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3660                 esac
3661                 ;;
3662             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3663             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3664             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3665             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3666             -msoft-float)   echo --float_support=vfplib       ;;
3667             -O[0-3]|-mf=*)  echo $flag                        ;;
3668             -g)             echo -g -mn                       ;;
3669             -pds=*)         echo $flag                        ;;
3670             -D*|-I*)        echo $flag                        ;;
3671             --gcc|--abi=*)  echo $flag                        ;;
3672             -me)            echo $flag                        ;;
3673         esac
3674     done
3675 }
3676
3677 probe_cc(){
3678     pfx=$1
3679     _cc=$2
3680     first=$3
3681
3682     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3683     unset _ld_o _ldflags _ld_lib _ld_path
3684     unset _depflags _DEPCMD _DEPFLAGS
3685     _flags_filter=echo
3686
3687     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3688         true # no-op to avoid reading stdin in following checks
3689     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3690         _type=llvm_gcc
3691         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3692         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3693         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3694         _cflags_speed='-O3'
3695         _cflags_size='-Os'
3696     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3697         _type=gcc
3698         gcc_version=$($_cc --version | head -n1)
3699         gcc_basever=$($_cc -dumpversion)
3700         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3701         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3702         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3703         case $gcc_basever in
3704             2*) ;;
3705             *) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
3706         esac
3707         if [ "$first" = true ]; then
3708             case $gcc_basever in
3709                 4.2*)
3710                 warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
3711             esac
3712         fi
3713         _cflags_speed='-O3'
3714         _cflags_size='-Os'
3715     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3716         _type=icc
3717         _ident=$($_cc --version | head -n1)
3718         _depflags='-MMD'
3719         _cflags_speed='-O3'
3720         _cflags_size='-Os'
3721         _cflags_noopt='-O1'
3722         _flags_filter=icc_flags
3723     elif $_cc -v 2>&1 | grep -q xlc; then
3724         _type=xlc
3725         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3726         _cflags_speed='-O5'
3727         _cflags_size='-O5 -qcompact'
3728     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3729         _type=ccc
3730         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3731         _DEPFLAGS='-M'
3732         _cflags_speed='-fast'
3733         _cflags_size='-O1'
3734         _flags_filter=ccc_flags
3735     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3736         test -d "$sysroot" || die "No valid sysroot specified."
3737         _type=armcc
3738         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3739         armcc_conf="$PWD/armcc.conf"
3740         $_cc --arm_linux_configure                 \
3741              --arm_linux_config_file="$armcc_conf" \
3742              --configure_sysroot="$sysroot"        \
3743              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3744              die "Error creating armcc configuration file."
3745         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3746         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3747         as_default="${cross_prefix}gcc"
3748         _depflags='-MMD'
3749         _cflags_speed='-O3'
3750         _cflags_size='-Os'
3751     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3752         _type=tms470
3753         _ident=$($_cc -version | head -n1 | tr -s ' ')
3754         _flags='--gcc --abi=eabi -me'
3755         _cc_e='-ppl -fe=$@'
3756         _cc_o='-fe=$@'
3757         _depflags='-ppa -ppd=$(@:.o=.d)'
3758         _cflags_speed='-O3 -mf=5'
3759         _cflags_size='-O3 -mf=2'
3760         _flags_filter=tms470_flags
3761     elif $_cc -v 2>&1 | grep -q clang; then
3762         _type=clang
3763         _ident=$($_cc --version 2>/dev/null | head -n1)
3764         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3765         _cflags_speed='-O3'
3766         _cflags_size='-Os'
3767     elif $_cc -V 2>&1 | grep -q Sun; then
3768         _type=suncc
3769         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3770         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3771         _DEPFLAGS='-xM1 -xc99'
3772         _ldflags='-std=c99'
3773         _cflags_speed='-O5'
3774         _cflags_size='-O5 -xspace'
3775         _flags_filter=suncc_flags
3776     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3777         _type=pathscale
3778         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3779         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3780         _cflags_speed='-O2'
3781         _cflags_size='-Os'
3782         _flags_filter='filter_out -Wdisabled-optimization'
3783     elif $_cc -v 2>&1 | grep -q Open64; then
3784         _type=open64
3785         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3786         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3787         _cflags_speed='-O2'
3788         _cflags_size='-Os'
3789         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3790     elif $_cc -V 2>&1 | grep -q Portland; then
3791         _type=pgi
3792         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3793         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3794         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3795         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3796         _cflags_noopt="-O"
3797         _flags_filter=pgi_flags
3798     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3799         _type=armasm
3800         _ident=$($_cc | head -n1)
3801         # 4509: "This form of conditional instruction is deprecated"
3802         _flags="-nologo -ignore 4509"
3803         _flags_filter=armasm_flags
3804     elif $_cc 2>&1 | grep -q Intel; then
3805         _type=icl
3806         _ident=$($_cc 2>&1 | head -n1)
3807         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3808         # Not only is O3 broken on 13.x+ but it is slower on all previous
3809         # versions (tested) as well.
3810         _cflags_speed="-O2"
3811         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3812         if $_cc 2>&1 | grep -q Linker; then
3813             _ld_o='-out:$@'
3814         else
3815             _ld_o='-Fe$@'
3816         fi
3817         _cc_o='-Fo$@'
3818         _cc_e='-P'
3819         _flags_filter=icl_flags
3820         _ld_lib='lib%.a'
3821         _ld_path='-libpath:'
3822         # -Qdiag-error to make icl error when seeing certain unknown arguments
3823         _flags='-nologo -Qdiag-error:4044,10157'
3824         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3825         # with MSVC which enables it by default.
3826         _cflags='-D_USE_MATH_DEFINES -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3827         disable stripping
3828     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3829         _type=msvc
3830         _ident=$($_cc 2>&1 | head -n1)
3831         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3832         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3833         _cflags_speed="-O2"
3834         _cflags_size="-O1"
3835         if $_cc -nologo- 2>&1 | grep -q Linker; then
3836             _ld_o='-out:$@'
3837         else
3838             _ld_o='-Fe$@'
3839         fi
3840         _cc_o='-Fo$@'
3841         _cc_e='-P -Fi$@'
3842         _flags_filter=msvc_flags
3843         _ld_lib='lib%.a'
3844         _ld_path='-libpath:'
3845         _flags='-nologo'
3846         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS'
3847         disable stripping
3848     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3849         _type=cparser
3850         _ident=$($_cc --version | head -n1)
3851         _depflags='-MMD'
3852         _cflags_speed='-O4'
3853         _cflags_size='-O2'
3854         _flags_filter=cparser_flags
3855     fi
3856
3857     eval ${pfx}_type=\$_type
3858     eval ${pfx}_ident=\$_ident
3859 }
3860
3861 set_ccvars(){
3862     eval ${1}_C=\${_cc_c-\${${1}_C}}
3863     eval ${1}_E=\${_cc_e-\${${1}_E}}
3864     eval ${1}_O=\${_cc_o-\${${1}_O}}
3865
3866     if [ -n "$_depflags" ]; then
3867         eval ${1}_DEPFLAGS=\$_depflags
3868     else
3869         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3870         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3871         eval DEP${1}FLAGS=\$_flags
3872     fi
3873 }
3874
3875 probe_cc cc "$cc" "true"
3876 cflags_filter=$_flags_filter
3877 cflags_speed=$_cflags_speed
3878 cflags_size=$_cflags_size
3879 cflags_noopt=$_cflags_noopt
3880 add_cflags $_flags $_cflags
3881 cc_ldflags=$_ldflags
3882 set_ccvars CC
3883
3884 probe_cc hostcc "$host_cc"
3885 host_cflags_filter=$_flags_filter
3886 add_host_cflags  $_flags $_cflags
3887 set_ccvars HOSTCC
3888
3889 test -n "$cc_type" && enable $cc_type ||
3890     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3891
3892 : ${as_default:=$cc}
3893 : ${objcc_default:=$cc}
3894 : ${dep_cc_default:=$cc}
3895 : ${ld_default:=$cc}
3896 : ${host_ld_default:=$host_cc}
3897 set_default ar as objcc dep_cc ld host_ld windres
3898
3899 probe_cc as "$as"
3900 asflags_filter=$_flags_filter
3901 add_asflags $_flags $_cflags
3902 set_ccvars AS
3903
3904 probe_cc objcc "$objcc"
3905 objcflags_filter=$_flags_filter
3906 add_objcflags $_flags $_cflags
3907 set_ccvars OBJC
3908
3909 probe_cc ld "$ld"
3910 ldflags_filter=$_flags_filter
3911 add_ldflags $_flags $_ldflags
3912 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3913 LD_O=${_ld_o-$LD_O}
3914 LD_LIB=${_ld_lib-$LD_LIB}
3915 LD_PATH=${_ld_path-$LD_PATH}
3916
3917 probe_cc hostld "$host_ld"
3918 host_ldflags_filter=$_flags_filter
3919 add_host_ldflags $_flags $_ldflags
3920 HOSTLD_O=${_ld_o-$HOSTLD_O}
3921
3922 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3923     probe_cc depcc "$dep_cc"
3924     CCDEP=${_DEPCMD:-$DEPCMD}
3925     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3926     DEPCCFLAGS=$_flags
3927 fi
3928
3929 if $ar 2>&1 | grep -q Microsoft; then
3930     arflags="-nologo"
3931     ar_o='-out:$@'
3932 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3933     arflags="rq"
3934     ar_o='$@'
3935 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3936     arflags='-Xany -r -c'
3937     ar_o='$@'
3938 elif $ar 2>&1 | grep -q "\[D\] "; then
3939     arflags="rcD"
3940     ar_o='$@'
3941 else
3942     arflags="rc"
3943     ar_o='$@'
3944 fi
3945
3946 add_cflags $extra_cflags
3947 add_cxxflags $extra_cxxflags
3948 add_objcflags $extra_objcflags
3949 add_asflags $extra_cflags
3950
3951 if test -n "$sysroot"; then
3952     case "$cc_type" in
3953         gcc|llvm_gcc|clang)
3954             add_cppflags --sysroot="$sysroot"
3955             add_ldflags --sysroot="$sysroot"
3956 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3957             add_cppflags -isysroot "$sysroot"
3958             add_ldflags -isysroot "$sysroot"
3959         ;;
3960         tms470)
3961             add_cppflags -I"$sysinclude"
3962             add_ldflags  --sysroot="$sysroot"
3963         ;;
3964     esac
3965 fi
3966
3967 if test "$cpu" = host; then
3968     enabled cross_compile &&
3969         die "--cpu=host makes no sense when cross-compiling."
3970
3971     case "$cc_type" in
3972         gcc|llvm_gcc)
3973             check_native(){
3974                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3975                 sed -n "/cc1.*$1=/{
3976                             s/.*$1=\\([^ ]*\\).*/\\1/
3977                             p
3978                             q
3979                         }" $TMPE
3980             }
3981             cpu=$(check_native -march || check_native -mcpu)
3982         ;;
3983     esac
3984
3985     test "${cpu:-host}" = host &&
3986         die "--cpu=host not supported with compiler $cc"
3987 fi
3988
3989 # Deal with common $arch aliases
3990 case "$arch" in
3991     aarch64|arm64)
3992         arch="aarch64"
3993     ;;
3994     arm*|iPad*|iPhone*)
3995         arch="arm"
3996     ;;
3997     mips*|IP*)
3998         arch="mips"
3999     ;;
4000     parisc*|hppa*)
4001         arch="parisc"
4002     ;;
4003     "Power Macintosh"|ppc*|powerpc*)
4004         arch="ppc"
4005     ;;
4006     s390|s390x)
4007         arch="s390"
4008     ;;
4009     sh4|sh)
4010         arch="sh4"
4011     ;;
4012     sun4u|sparc*)
4013         arch="sparc"
4014     ;;
4015     tilegx|tile-gx)
4016         arch="tilegx"
4017     ;;
4018     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
4019         arch="x86"
4020     ;;
4021 esac
4022
4023 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
4024 enable $arch
4025
4026 # Add processor-specific flags
4027 if enabled aarch64; then
4028
4029     case $cpu in
4030         armv*)
4031             cpuflags="-march=$cpu"
4032         ;;
4033         *)
4034             cpuflags="-mcpu=$cpu"
4035         ;;
4036     esac
4037
4038 elif enabled alpha; then
4039
4040     cpuflags="-mcpu=$cpu"
4041
4042 elif enabled arm; then
4043
4044     check_arm_arch() {
4045         check_cpp_condition stddef.h \
4046             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
4047             $cpuflags
4048     }
4049
4050     probe_arm_arch() {
4051         if   check_arm_arch 4;        then echo armv4;
4052         elif check_arm_arch 4T;       then echo armv4t;
4053         elif check_arm_arch 5;        then echo armv5;
4054         elif check_arm_arch 5E;       then echo armv5e;
4055         elif check_arm_arch 5T;       then echo armv5t;
4056         elif check_arm_arch 5TE;      then echo armv5te;
4057         elif check_arm_arch 5TEJ;     then echo armv5te;
4058         elif check_arm_arch 6;        then echo armv6;
4059         elif check_arm_arch 6J;       then echo armv6j;
4060         elif check_arm_arch 6K;       then echo armv6k;
4061         elif check_arm_arch 6Z;       then echo armv6z;
4062         elif check_arm_arch 6ZK;      then echo armv6zk;
4063         elif check_arm_arch 6T2;      then echo armv6t2;
4064         elif check_arm_arch 7;        then echo armv7;
4065         elif check_arm_arch 7A  7_A;  then echo armv7-a;
4066         elif check_arm_arch 7S;       then echo armv7-a;
4067         elif check_arm_arch 7R  7_R;  then echo armv7-r;
4068         elif check_arm_arch 7M  7_M;  then echo armv7-m;
4069         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
4070         elif check_arm_arch 8A  8_A;  then echo armv8-a;
4071         fi
4072     }
4073
4074     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
4075
4076     case $cpu in
4077         armv*)
4078             cpuflags="-march=$cpu"
4079             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
4080         ;;
4081         *)
4082             cpuflags="-mcpu=$cpu"
4083             case $cpu in
4084                 cortex-a*)                               subarch=armv7a  ;;
4085                 cortex-r*)                               subarch=armv7r  ;;
4086                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
4087                 arm11*)                                  subarch=armv6   ;;
4088                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
4089                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
4090                 *)                             subarch=$(probe_arm_arch) ;;
4091             esac
4092         ;;
4093     esac
4094
4095     case "$subarch" in
4096         armv5t*)    enable fast_clz                ;;
4097         armv[6-8]*)
4098             enable fast_clz
4099             disabled fast_unaligned || enable fast_unaligned
4100             ;;
4101     esac
4102
4103 elif enabled avr32; then
4104
4105     case $cpu in
4106         ap7[02]0[0-2])
4107             subarch="avr32_ap"
4108             cpuflags="-mpart=$cpu"
4109         ;;
4110         ap)
4111             subarch="avr32_ap"
4112             cpuflags="-march=$cpu"
4113         ;;
4114         uc3[ab]*)
4115             subarch="avr32_uc"
4116             cpuflags="-mcpu=$cpu"
4117         ;;
4118         uc)
4119             subarch="avr32_uc"
4120             cpuflags="-march=$cpu"
4121         ;;
4122     esac
4123
4124 elif enabled bfin; then
4125
4126     cpuflags="-mcpu=$cpu"
4127
4128 elif enabled mips; then
4129
4130     cpuflags="-march=$cpu"
4131
4132     case $cpu in
4133         24kc)
4134             disable mips64r2
4135             disable mips64r6
4136             disable mipsfpu
4137             disable mipsdsp
4138             disable mipsdspr2
4139             disable msa
4140         ;;
4141         24kf*)
4142             disable mips64r2
4143             disable mips64r6
4144             disable mipsdsp
4145             disable mipsdspr2
4146             disable msa
4147         ;;
4148         24kec|34kc|1004kc)
4149             disable mips64r2
4150             disable mips64r6
4151             disable mipsfpu
4152             disable mipsdspr2
4153             disable msa
4154         ;;
4155         24kef*|34kf*|1004kf*)
4156             disable mips64r2
4157             disable mips64r6
4158             disable mipsdspr2
4159             disable msa
4160         ;;
4161         74kc)
4162             disable mips64r2
4163             disable mips64r6
4164             disable mipsfpu
4165             disable msa
4166         ;;
4167         74kf)
4168             disable mips64r2
4169             disable mips64r6
4170             disable msa
4171         ;;
4172         p5600)
4173             disable mips64r2
4174             disable mips64r6
4175             disable mipsdsp
4176             disable mipsdspr2
4177             check_cflags "-mtune=p5600" &&
4178             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4179             add_asflags "-mfp64"
4180         ;;
4181         i6400)
4182             disable mips32r2
4183             disable mips64r2
4184             disable mipsdsp
4185             disable mipsdspr2
4186             check_cflags "-mtune=i6400 -mabi=64" &&
4187             check_cflags "-mfp64 -msched-weight -mload-store-pairs -funroll-loops" &&
4188             check_ldflags "-mabi=64" &&
4189             add_asflags "-mfp64"
4190         ;;
4191         loongson*)
4192             disable mipsfpu
4193             disable mips32r2
4194             disable mips64r2
4195             disable mips64r6
4196             disable mipsdsp
4197             disable mipsdspr2
4198             disable msa
4199             enable local_aligned_8 local_aligned_16 local_aligned_32
4200             enable simd_align_16
4201             enable fast_64bit
4202             enable fast_clz
4203             enable fast_cmov
4204             enable fast_unaligned
4205             disable aligned_stack
4206             case $cpu in
4207                 loongson3*)
4208                     cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
4209                 ;;
4210                 loongson2e)
4211                     cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
4212                 ;;
4213                 loongson2f)
4214                     cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
4215                 ;;
4216             esac
4217         ;;
4218         generic)
4219             disable mips64r6
4220             disable msa
4221         ;;
4222         *)
4223             disable mipsfpu
4224             disable mips32r2
4225             disable mips64r2
4226             disable mips64r6
4227             disable mipsdsp
4228             disable mipsdspr2
4229             disable msa
4230         ;;
4231     esac
4232
4233 elif enabled ppc; then
4234
4235     disable ldbrx
4236
4237     case $(tolower $cpu) in
4238         601|ppc601|powerpc601)
4239             cpuflags="-mcpu=601"
4240             disable altivec
4241         ;;
4242         603*|ppc603*|powerpc603*)
4243             cpuflags="-mcpu=603"
4244             disable altivec
4245         ;;
4246         604*|ppc604*|powerpc604*)
4247             cpuflags="-mcpu=604"
4248             disable altivec
4249         ;;
4250         g3|75*|ppc75*|powerpc75*)
4251             cpuflags="-mcpu=750"
4252             disable altivec
4253         ;;
4254         g4|745*|ppc745*|powerpc745*)
4255             cpuflags="-mcpu=7450"
4256             disable vsx
4257         ;;
4258         74*|ppc74*|powerpc74*)
4259             cpuflags="-mcpu=7400"
4260             disable vsx
4261         ;;
4262         g5|970|ppc970|powerpc970)
4263             cpuflags="-mcpu=970"
4264             disable vsx
4265         ;;
4266         power[3-6]*)
4267             cpuflags="-mcpu=$cpu"
4268             disable vsx
4269         ;;
4270         power[7-8]*)
4271             cpuflags="-mcpu=$cpu"
4272         ;;
4273         cell)
4274             cpuflags="-mcpu=cell"
4275             enable ldbrx
4276             disable vsx
4277         ;;
4278         e500mc)
4279             cpuflags="-mcpu=e500mc"
4280             disable altivec
4281         ;;
4282         e500v2)
4283             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
4284             disable altivec
4285             disable dcbzl
4286         ;;
4287         e500)
4288             cpuflags="-mcpu=8540 -mhard-float"
4289             disable altivec
4290             disable dcbzl
4291         ;;
4292     esac
4293
4294 elif enabled sparc; then
4295
4296     case $cpu in
4297         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
4298             cpuflags="-mcpu=$cpu"
4299         ;;
4300         ultrasparc*|niagara[234])
4301             cpuflags="-mcpu=$cpu"
4302         ;;
4303     esac
4304
4305 elif enabled x86; then
4306
4307     case $cpu in
4308         i[345]86|pentium)
4309             cpuflags="-march=$cpu"
4310             disable i686
4311             disable mmx
4312         ;;
4313         # targets that do NOT support nopl and conditional mov (cmov)
4314         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
4315             cpuflags="-march=$cpu"
4316             disable i686
4317         ;;
4318         # targets that do support nopl and conditional mov (cmov)
4319         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
4320         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
4321             cpuflags="-march=$cpu"
4322             enable i686
4323             enable fast_cmov
4324         ;;
4325         # targets that do support conditional mov but on which it's slow
4326         pentium4|pentium4m|prescott|nocona)
4327             cpuflags="-march=$cpu"
4328             enable i686
4329             disable fast_cmov
4330         ;;
4331     esac
4332
4333 fi
4334
4335 if [ "$cpu" != generic ]; then
4336     add_cflags  $cpuflags
4337     add_asflags $cpuflags
4338     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
4339 fi
4340
4341 # compiler sanity check
4342 check_exec <<EOF
4343 int main(void){ return 0; }
4344 EOF
4345 if test "$?" != 0; then
4346     echo "$cc is unable to create an executable file."
4347     if test -z "$cross_prefix" && ! enabled cross_compile ; then
4348         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
4349         echo "Only do this if you know what cross compiling means."
4350     fi
4351     die "C compiler test failed."
4352 fi
4353
4354 add_cppflags -D_ISOC99_SOURCE
4355 add_cxxflags -D__STDC_CONSTANT_MACROS
4356 check_cflags -std=c99
4357 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
4358 #include <stdlib.h>
4359 EOF
4360 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
4361 #include <stdlib.h>
4362 EOF
4363
4364 add_host_cppflags -D_ISOC99_SOURCE
4365 check_host_cflags -std=c99
4366 check_host_cflags -Wall
4367 check_host_cflags -O3
4368
4369 check_64bit(){
4370     arch32=$1
4371     arch64=$2
4372     expr=$3
4373     check_code cc "" "int test[2*($expr) - 1]" &&
4374         subarch=$arch64 || subarch=$arch32
4375 }
4376
4377 case "$arch" in
4378     aarch64|alpha|ia64)
4379         spic=$shared
4380     ;;
4381     mips)
4382         check_64bit mips mips64 '_MIPS_SIM > 1'
4383         spic=$shared
4384     ;;
4385     parisc)
4386         check_64bit parisc parisc64 'sizeof(void *) > 4'
4387         spic=$shared
4388     ;;
4389     ppc)
4390         check_64bit ppc ppc64 'sizeof(void *) > 4'
4391         spic=$shared
4392     ;;
4393     s390)
4394         check_64bit s390 s390x 'sizeof(void *) > 4'
4395         spic=$shared
4396     ;;
4397     sparc)
4398         check_64bit sparc sparc64 'sizeof(void *) > 4'
4399         spic=$shared
4400     ;;
4401     x86)
4402         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
4403         # Treat x32 as x64 for now. Note it also needs spic=$shared
4404         test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
4405             subarch=x86_64
4406         if test "$subarch" = "x86_64"; then
4407             spic=$shared
4408         fi
4409     ;;
4410     ppc)
4411         check_cc <<EOF && subarch="ppc64"
4412         int test[(int)sizeof(char*) - 7];
4413 EOF
4414     ;;
4415 esac
4416
4417 enable $subarch
4418 enabled spic && enable_weak pic
4419
4420 # OS specific
4421 case $target_os in
4422     aix)
4423         SHFLAGS=-shared
4424         add_cppflags '-I\$(SRC_PATH)/compat/aix'
4425         enabled shared && add_ldflags -Wl,-brtl
4426         ;;
4427     android)
4428         disable symver
4429         enable section_data_rel_ro
4430         SLIB_INSTALL_NAME='$(SLIBNAME)'
4431         SLIB_INSTALL_LINKS=
4432         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
4433         ;;
4434     haiku)
4435         prefix_default="/boot/common"
4436         network_extralibs="-lnetwork"
4437         host_libs=
4438         ;;
4439     sunos)
4440         SHFLAGS='-shared -Wl,-h,$$(@F)'
4441         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
4442         network_extralibs="-lsocket -lnsl"
4443         add_cppflags -D__EXTENSIONS__
4444         # When using suncc to build, the Solaris linker will mark
4445         # an executable with each instruction set encountered by
4446         # the Solaris assembler.  As our libraries contain their own
4447         # guards for processor-specific code, instead suppress
4448         # generation of the HWCAPS ELF section on Solaris x86 only.
4449         enabled_all suncc x86 &&
4450             echo "hwcap_1 = OVERRIDE;" > mapfile &&
4451             add_ldflags -Wl,-M,mapfile
4452         nm_default='nm -P -g'
4453         SLIB_CREATE_DEF_CMD='$(Q)perl $(SRC_PATH)/compat/solaris/make_sunver.pl $$(filter %.ver,$$^) $(OBJS) | grep -v @ > $(SUBDIR)lib$(NAME).ver-sol2'
4454         ;;
4455     netbsd)
4456         disable symver
4457         oss_indev_extralibs="-lossaudio"
4458         oss_outdev_extralibs="-lossaudio"
4459         enabled gcc || check_ldflags -Wl,-zmuldefs
4460         ;;
4461     openbsd|bitrig)
4462         disable symver
4463         SHFLAGS='-shared'
4464         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
4465         SLIB_INSTALL_LINKS=
4466         oss_indev_extralibs="-lossaudio"
4467         oss_outdev_extralibs="-lossaudio"
4468         ;;
4469     dragonfly)
4470         disable symver
4471         ;;
4472     freebsd)
4473         ;;
4474     bsd/os)
4475         add_extralibs -lpoll -lgnugetopt
4476         strip="strip -d"
4477         ;;
4478     darwin)
4479         enabled ppc && add_asflags -force_cpusubtype_ALL
4480         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
4481         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
4482         strip="${strip} -x"
4483         add_ldflags -Wl,-dynamic,-search_paths_first
4484         SLIBSUF=".dylib"
4485         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
4486         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
4487         objformat="macho"
4488         enabled x86_64 && objformat="macho64"
4489         enabled_any pic shared x86_64 ||
4490             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
4491         ;;
4492     msys*)
4493         die "Native MSYS builds are discouraged, please use the MINGW environment.";
4494         ;;
4495     mingw32*|mingw64*)
4496         if test $target_os = "mingw32ce"; then
4497             disable network
4498         else
4499             target_os=mingw32
4500         fi
4501         decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
4502         decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
4503         LIBTARGET=i386
4504         if enabled x86_64; then
4505             LIBTARGET="i386:x86-64"
4506         elif enabled arm; then
4507             LIBTARGET=arm-wince
4508         fi
4509         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4510         enabled x86_32 && check_ldflags -Wl,--large-address-aware
4511         shlibdir_default="$bindir_default"
4512         SLIBPREF=""
4513         SLIBSUF=".dll"
4514         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4515         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4516         dlltool="${cross_prefix}dlltool"
4517         if check_cmd lib.exe -list; then
4518             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4519             if enabled x86_64; then
4520                 LIBTARGET=x64
4521             fi
4522         elif check_cmd $dlltool --version; then
4523             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4524         fi
4525         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4526         SLIB_INSTALL_LINKS=
4527         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4528         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4529         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
4530         objformat="win32"
4531         ranlib=:
4532         enable dos_paths
4533         check_ldflags -Wl,--nxcompat,--dynamicbase
4534         # Lets work around some stupidity in binutils.
4535         # ld will strip relocations from executables even though we need them
4536         # for dynamicbase (ASLR).  Using -pie does retain the reloc section
4537         # however ld then forgets what the entry point should be (oops) so we
4538         # have to manually (re)set it.
4539         if enabled x86_32; then
4540             add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
4541         elif enabled x86_64; then
4542             add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
4543             check_ldflags -Wl,--high-entropy-va # binutils 2.25
4544             # Set image base >4GB for extra entropy with HEASLR
4545             add_ldexeflags -Wl,--image-base,0x140000000
4546             append SHFLAGS -Wl,--image-base,0x180000000
4547         fi
4548         ;;
4549     win32|win64)
4550         disable symver
4551         if enabled shared; then
4552             # Link to the import library instead of the normal static library
4553             # for shared libs.
4554             LD_LIB='%.lib'
4555             # Cannot build both shared and static libs with MSVC or icl.
4556             disable static
4557         fi
4558         enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
4559         shlibdir_default="$bindir_default"
4560         SLIBPREF=""
4561         SLIBSUF=".dll"
4562         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4563         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4564         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4565         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4566         SLIB_INSTALL_LINKS=
4567         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4568         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4569         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4570         objformat="win32"
4571         ranlib=:
4572         enable dos_paths
4573         ;;
4574     cygwin*)
4575         target_os=cygwin
4576         shlibdir_default="$bindir_default"
4577         SLIBPREF="cyg"
4578         SLIBSUF=".dll"
4579         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4580         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4581         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4582         SLIB_INSTALL_LINKS=
4583         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4584         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4585         objformat="win32"
4586         enable dos_paths
4587         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4588         ;;
4589     *-dos|freedos|opendos)
4590         network_extralibs="-lsocket"
4591         objformat="coff"
4592         enable dos_paths
4593         add_cppflags -U__STRICT_ANSI__
4594         ;;
4595     linux)
4596         enable dv1394
4597         enable section_data_rel_ro
4598         ;;
4599     irix*)
4600         target_os=irix
4601         ranlib="echo ignoring ranlib"
4602         ;;
4603     os/2*)
4604         strip="lxlite -CS"
4605         ln_s="cp -f"
4606         objformat="aout"
4607         add_cppflags -D_GNU_SOURCE
4608         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4609         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4610         LIBSUF="_s.a"
4611         SLIBPREF=""
4612         SLIBSUF=".dll"
4613         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4614         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4615         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4616             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4617             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4618             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4619             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4620         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4621             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4622         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4623         enable dos_paths
4624         enable_weak os2threads
4625         ;;
4626     gnu/kfreebsd)
4627         add_cppflags -D_BSD_SOURCE
4628         ;;
4629     gnu)
4630         ;;
4631     qnx)
4632         add_cppflags -D_QNX_SOURCE
4633         network_extralibs="-lsocket"
4634         ;;
4635     symbian)
4636         SLIBSUF=".dll"
4637         enable dos_paths
4638         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4639         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4640         add_ldflags -Wl,--target1-abs,--no-undefined \
4641                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4642                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4643         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4644                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4645                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4646         ;;
4647     osf1)
4648         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4649         ;;
4650     minix)
4651         ;;
4652     plan9)
4653         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4654                      -D_REENTRANT_SOURCE        \
4655                      -D_RESEARCH_SOURCE         \
4656                      -DFD_SETSIZE=96            \
4657                      -DHAVE_SOCK_OPTS
4658         add_compat strtod.o strtod=avpriv_strtod
4659         network_extralibs='-lbsd'
4660         exeobjs=compat/plan9/main.o
4661         disable ffserver
4662         cp_f='cp'
4663         ;;
4664     none)
4665         ;;
4666     *)
4667         die "Unknown OS '$target_os'."
4668         ;;
4669 esac
4670
4671 # determine libc flavour
4672
4673 probe_libc(){
4674     pfx=$1
4675     pfx_no_=${pfx%_}
4676     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4677     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4678         eval ${pfx}libc_type=uclibc
4679         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4680     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4681         eval ${pfx}libc_type=glibc
4682         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4683     # MinGW headers can be installed on Cygwin, so check for newlib first.
4684     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4685         eval ${pfx}libc_type=newlib
4686         add_${pfx}cppflags -U__STRICT_ANSI__
4687     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4688     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4689         eval ${pfx}libc_type=mingw64
4690         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4691             add_compat msvcrt/snprintf.o
4692             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4693         fi
4694         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4695         eval test \$${pfx_no_}cc_type = "gcc" &&
4696             add_${pfx}cppflags -D__printf__=__gnu_printf__
4697     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4698          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4699         eval ${pfx}libc_type=mingw32
4700         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4701             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4702             die "ERROR: MinGW32 runtime version must be >= 3.15."
4703         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4704         eval test \$${pfx_no_}cc_type = "gcc" &&
4705             add_${pfx}cppflags -D__printf__=__gnu_printf__
4706     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4707         eval ${pfx}libc_type=msvcrt
4708         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4709             if [ "$pfx" = host_ ]; then
4710                 add_host_cppflags -Dsnprintf=_snprintf
4711             else
4712                 add_compat strtod.o strtod=avpriv_strtod
4713                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4714                                              _snprintf=avpriv_snprintf  \
4715                                              vsnprintf=avpriv_vsnprintf
4716             fi
4717         fi
4718         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4719         # 0x601 by default unless something else is set by the user.
4720         # This can easily lead to us detecting functions only present
4721         # in such new versions and producing binaries requiring windows 7.0.
4722         # Therefore explicitly set the default to XP unless the user has
4723         # set something else on the command line.
4724         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4725         # family. For these cases, configure is free to use any functions
4726         # found in the SDK headers by default. (Alternatively, we could force
4727         # _WIN32_WINNT to 0x0602 in that case.)
4728         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4729             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4730 #ifdef WINAPI_FAMILY
4731 #include <winapifamily.h>
4732 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4733 #error not desktop
4734 #endif
4735 #endif
4736 EOF
4737     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4738         eval ${pfx}libc_type=klibc
4739     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4740         eval ${pfx}libc_type=bionic
4741     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4742         eval ${pfx}libc_type=solaris
4743         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4744     fi
4745     check_${pfx}cc <<EOF
4746 #include <time.h>
4747 void *v = localtime_r;
4748 EOF
4749 test "$?" != 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
4750 #include <time.h>
4751 void *v = localtime_r;
4752 EOF
4753
4754 }
4755
4756 probe_libc
4757 test -n "$libc_type" && enable libc_$libc_type
4758 probe_libc host_
4759 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4760
4761 case $libc_type in
4762     bionic)
4763         add_compat strtod.o strtod=avpriv_strtod
4764         ;;
4765 esac
4766
4767 # hacks for compiler/libc/os combinations
4768
4769 if enabled_all tms470 libc_glibc; then
4770     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4771     add_cppflags -D__USER_LABEL_PREFIX__=
4772     add_cppflags -D__builtin_memset=memset
4773     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4774     add_cflags   -pds=48    # incompatible redefinition of macro
4775 fi
4776
4777 if enabled_all ccc libc_glibc; then
4778     add_ldflags -Wl,-z,now  # calls to libots crash without this
4779 fi
4780
4781 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4782     add_cppflags '-I\$(SRC_PATH)/compat/float'
4783
4784 esc(){
4785     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4786 }
4787
4788 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4789
4790 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4791
4792 set_default libdir
4793 : ${shlibdir_default:="$libdir"}
4794 : ${pkgconfigdir_default:="$libdir/pkgconfig"}
4795
4796 set_default $PATHS_LIST
4797 set_default nm
4798
4799 # we need to build at least one lib type
4800 if ! enabled_any static shared; then
4801     cat <<EOF
4802 At least one library type must be built.
4803 Specify --enable-static to build the static libraries or --enable-shared to
4804 build the shared libraries as well. To only build the shared libraries specify
4805 --disable-static in addition to --enable-shared.
4806 EOF
4807     exit 1;
4808 fi
4809
4810 die_license_disabled() {
4811     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4812 }
4813
4814 die_license_disabled_gpl() {
4815     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4816 }
4817
4818 die_license_disabled gpl frei0r
4819 die_license_disabled gpl libcdio
4820 die_license_disabled gpl librubberband
4821 die_license_disabled gpl libsmbclient
4822 die_license_disabled gpl libutvideo
4823 die_license_disabled gpl libvidstab
4824 die_license_disabled gpl libx264
4825 die_license_disabled gpl libx265
4826 die_license_disabled gpl libxavs
4827 die_license_disabled gpl libxvid
4828 die_license_disabled gpl libzvbi
4829 die_license_disabled gpl x11grab
4830
4831 die_license_disabled nonfree libaacplus
4832 die_license_disabled nonfree libfaac
4833 die_license_disabled nonfree nvenc
4834 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4835 enabled gpl && die_license_disabled_gpl nonfree openssl
4836
4837 die_license_disabled version3 gmp
4838 die_license_disabled version3 libopencore_amrnb
4839 die_license_disabled version3 libopencore_amrwb
4840 die_license_disabled version3 libsmbclient
4841 die_license_disabled version3 libvo_aacenc
4842 die_license_disabled version3 libvo_amrwbenc
4843
4844 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4845
4846 disabled optimizations || check_cflags -fomit-frame-pointer
4847
4848 enable_weak_pic() {
4849     disabled pic && return
4850     enable pic
4851     add_cppflags -DPIC
4852     case "$target_os" in
4853     mingw*|cygwin*)
4854         ;;
4855     *)
4856         add_cflags -fPIC
4857         ;;
4858     esac
4859     add_asflags  -fPIC
4860 }
4861
4862 enabled pic