configure: remove \r from cc_ident,
[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 [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90
91 Licensing options:
92   --enable-gpl             allow use of GPL code, the resulting libs
93                            and binaries will be under GPL [no]
94   --enable-version3        upgrade (L)GPL to version 3 [no]
95   --enable-nonfree         allow use of nonfree code, the resulting libs
96                            and binaries will be unredistributable [no]
97
98 Configuration options:
99   --disable-static         do not build static libraries [no]
100   --enable-shared          build shared libraries [no]
101   --enable-small           optimize for size instead of speed
102   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
103   --enable-gray            enable full grayscale support (slower color)
104   --disable-swscale-alpha  disable alpha channel support in swscale
105   --disable-all            disable building components, libraries and programs
106   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
107   --enable-incompatible-fork-abi  enable incompatible Libav fork ABI (deprecated) [no]
108
109 Program options:
110   --disable-programs       do not build command line programs
111   --disable-ffmpeg         disable ffmpeg build
112   --disable-ffplay         disable ffplay build
113   --disable-ffprobe        disable ffprobe build
114   --disable-ffserver       disable ffserver build
115
116 Documentation options:
117   --disable-doc            do not build documentation
118   --disable-htmlpages      do not build HTML documentation pages
119   --disable-manpages       do not build man documentation pages
120   --disable-podpages       do not build POD documentation pages
121   --disable-txtpages       do not build text documentation pages
122
123 Component options:
124   --disable-avdevice       disable libavdevice build
125   --disable-avcodec        disable libavcodec build
126   --disable-avformat       disable libavformat build
127   --disable-avutil         disable libavutil build
128   --disable-swresample     disable libswresample build
129   --disable-swscale        disable libswscale build
130   --disable-postproc       disable libpostproc build
131   --disable-avfilter       disable libavfilter build
132   --enable-avresample      enable libavresample build [no]
133   --disable-pthreads       disable pthreads [auto]
134   --disable-w32threads     disable Win32 threads [auto]
135   --disable-os2threads     disable OS/2 threads [auto]
136   --disable-network        disable network support [no]
137   --disable-dct            disable DCT code
138   --disable-dwt            disable DWT code
139   --disable-error-resilience disable error resilience code
140   --disable-lsp            disable LSP code
141   --disable-lzo            disable LZO decoder code
142   --disable-mdct           disable MDCT code
143   --disable-rdft           disable RDFT code
144   --disable-fft            disable FFT code
145
146 Hardware accelerators:
147   --disable-dxva2          disable DXVA2 code [autodetect]
148   --disable-vaapi          disable VAAPI code [autodetect]
149   --enable-vda             enable VDA code
150   --disable-vdpau          disable VDPAU code [autodetect]
151
152 Individual component options:
153   --disable-everything     disable all components listed below
154   --disable-encoder=NAME   disable encoder NAME
155   --enable-encoder=NAME    enable encoder NAME
156   --disable-encoders       disable all encoders
157   --disable-decoder=NAME   disable decoder NAME
158   --enable-decoder=NAME    enable decoder NAME
159   --disable-decoders       disable all decoders
160   --disable-hwaccel=NAME   disable hwaccel NAME
161   --enable-hwaccel=NAME    enable hwaccel NAME
162   --disable-hwaccels       disable all hwaccels
163   --disable-muxer=NAME     disable muxer NAME
164   --enable-muxer=NAME      enable muxer NAME
165   --disable-muxers         disable all muxers
166   --disable-demuxer=NAME   disable demuxer NAME
167   --enable-demuxer=NAME    enable demuxer NAME
168   --disable-demuxers       disable all demuxers
169   --enable-parser=NAME     enable parser NAME
170   --disable-parser=NAME    disable parser NAME
171   --disable-parsers        disable all parsers
172   --enable-bsf=NAME        enable bitstream filter NAME
173   --disable-bsf=NAME       disable bitstream filter NAME
174   --disable-bsfs           disable all bitstream filters
175   --enable-protocol=NAME   enable protocol NAME
176   --disable-protocol=NAME  disable protocol NAME
177   --disable-protocols      disable all protocols
178   --enable-indev=NAME      enable input device NAME
179   --disable-indev=NAME     disable input device NAME
180   --disable-indevs         disable input devices
181   --enable-outdev=NAME     enable output device NAME
182   --disable-outdev=NAME    disable output device NAME
183   --disable-outdevs        disable output devices
184   --disable-devices        disable all devices
185   --enable-filter=NAME     enable filter NAME
186   --disable-filter=NAME    disable filter NAME
187   --disable-filters        disable all filters
188
189 External library support:
190   --enable-avisynth        enable reading of AviSynth script files [no]
191   --disable-bzlib          disable bzlib [autodetect]
192   --enable-fontconfig      enable fontconfig
193   --enable-frei0r          enable frei0r video filtering
194   --enable-gnutls          enable gnutls [no]
195   --disable-iconv          disable iconv [autodetect]
196   --enable-ladspa          enable LADSPA audio filtering
197   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
198   --enable-libass          enable libass subtitles rendering [no]
199   --enable-libbluray       enable BluRay reading using libbluray [no]
200   --enable-libcaca         enable textual display using libcaca
201   --enable-libcelt         enable CELT decoding via libcelt [no]
202   --enable-libcdio         enable audio CD grabbing with libcdio
203   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
204                            and libraw1394 [no]
205   --enable-libfaac         enable AAC encoding via libfaac [no]
206   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
207   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
208   --enable-libfreetype     enable libfreetype [no]
209   --enable-libgme          enable Game Music Emu via libgme [no]
210   --enable-libgsm          enable GSM de/encoding via libgsm [no]
211   --enable-libiec61883     enable iec61883 via libiec61883 [no]
212   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
213   --enable-libmodplug      enable ModPlug via libmodplug [no]
214   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
215   --enable-libnut          enable NUT (de)muxing via libnut,
216                            native (de)muxer exists [no]
217   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
218   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
219   --enable-libopencv       enable video filtering via libopencv [no]
220   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
221   --enable-libopus         enable Opus decoding via libopus [no]
222   --enable-libpulse        enable Pulseaudio input via libpulse [no]
223   --enable-libquvi         enable quvi input via libquvi [no]
224   --enable-librtmp         enable RTMP[E] support via librtmp [no]
225   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
226   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
227   --enable-libsoxr         enable Include libsoxr resampling [no]
228   --enable-libspeex        enable Speex de/encoding via libspeex [no]
229   --enable-libssh          enable SFTP protocol via libssh [no]
230   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
231   --enable-libtheora       enable Theora encoding via libtheora [no]
232   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
233   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
234   --enable-libv4l2         enable libv4l2/v4l-utils [no]
235   --enable-libvidstab      enable video stabilization using vid.stab [no]
236   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
237   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
238   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
239                            native implementation exists [no]
240   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
241   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
242   --enable-libx264         enable H.264 encoding via x264 [no]
243   --enable-libxavs         enable AVS encoding via xavs [no]
244   --enable-libxvid         enable Xvid encoding via xvidcore,
245                            native MPEG-4/Xvid encoder exists [no]
246   --enable-libzmq          enable message passing via libzmq [no]
247   --enable-libzvbi         enable teletext support via libzvbi [no]
248   --enable-openal          enable OpenAL 1.1 capture support [no]
249   --enable-opencl          enable OpenCL code
250   --enable-openssl         enable openssl [no]
251   --enable-x11grab         enable X11 grabbing [no]
252   --disable-zlib           disable zlib [autodetect]
253
254 Advanced options (experts only):
255   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
256   --enable-cross-compile   assume a cross-compiler is used
257   --sysroot=PATH           root of cross-build tree
258   --sysinclude=PATH        location of cross-build system headers
259   --target-os=OS           compiler targets OS [$target_os]
260   --target-exec=CMD        command to run executables on target
261   --target-path=DIR        path to view of build directory on target
262   --target-samples=DIR     path to samples directory on target
263   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
264   --toolchain=NAME         set tool defaults according to NAME
265   --nm=NM                  use nm tool NM [$nm_default]
266   --ar=AR                  use archive tool AR [$ar_default]
267   --as=AS                  use assembler AS [$as_default]
268   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --cxx=CXX                use C compiler CXX [$cxx_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD [$ld_default]
273   --host-cc=HOSTCC         use host C compiler HOSTCC
274   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
275   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
276   --host-ld=HOSTLD         use host linker HOSTLD
277   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
278   --host-libs=HLIBS        use libs HLIBS when linking for host
279   --host-os=OS             compiler host OS [$target_os]
280   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
281   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
282   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
283   --extra-libs=ELIBS       add ELIBS [$ELIBS]
284   --extra-version=STRING   version string suffix []
285   --optflags=OPTFLAGS      override optimization-related compiler flags
286   --build-suffix=SUFFIX    library name suffix []
287   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
288   --progs-suffix=SUFFIX    program name suffix []
289   --arch=ARCH              select architecture [$arch]
290   --cpu=CPU                select the minimum required CPU (affects
291                            instruction selection, may crash on older CPUs)
292   --enable-pic             build position-independent code
293   --enable-sram            allow use of on-chip SRAM
294   --enable-thumb           compile for Thumb instruction set
295   --disable-symver         disable symbol versioning
296   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
297   --disable-safe-bitstream-reader
298                            disable buffer boundary checking in bitreaders
299                            (faster, but may crash)
300   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
301   --enable-lto             use link-time optimization
302
303 Optimization options (experts only):
304   --disable-asm            disable all assembler optimizations
305   --disable-altivec        disable AltiVec optimizations
306   --disable-amd3dnow       disable 3DNow! optimizations
307   --disable-amd3dnowext    disable 3DNow! extended optimizations
308   --disable-mmx            disable MMX optimizations
309   --disable-mmxext         disable MMXEXT optimizations
310   --disable-sse            disable SSE optimizations
311   --disable-sse2           disable SSE2 optimizations
312   --disable-sse3           disable SSE3 optimizations
313   --disable-ssse3          disable SSSE3 optimizations
314   --disable-sse4           disable SSE4 optimizations
315   --disable-sse42          disable SSE4.2 optimizations
316   --disable-avx            disable AVX optimizations
317   --disable-fma4           disable FMA4 optimizations
318   --disable-armv5te        disable armv5te optimizations
319   --disable-armv6          disable armv6 optimizations
320   --disable-armv6t2        disable armv6t2 optimizations
321   --disable-vfp            disable VFP optimizations
322   --disable-neon           disable NEON optimizations
323   --disable-vis            disable VIS optimizations
324   --disable-inline-asm     disable use of inline assembler
325   --disable-yasm           disable use of yasm assembler
326   --disable-mips32r2       disable MIPS32R2 optimizations
327   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
328   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
329   --disable-mipsfpu        disable floating point MIPS optimizations
330   --disable-fast-unaligned consider unaligned accesses slow
331
332 Developer options (useful when working on FFmpeg itself):
333   --disable-debug          disable debugging symbols
334   --enable-debug=LEVEL     set the debug level [$debuglevel]
335   --disable-optimizations  disable compiler optimizations
336   --enable-extra-warnings  enable more compiler warnings
337   --disable-stripping      disable stripping of executables and shared libraries
338   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
339                            2 causes a slowdown at runtime.
340   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
341   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
342                            leaks and errors, using the specified valgrind binary.
343                            Cannot be combined with --target-exec
344   --enable-ftrapv          Trap arithmetic overflows
345   --samples=PATH           location of test samples for FATE, if not set use
346                            \$FATE_SAMPLES at make invocation time.
347   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
348                            should be used only for debugging purposes)
349   --enable-random          randomly enable/disable components
350   --disable-random
351   --enable-random=LIST     randomly enable/disable specific components or
352   --disable-random=LIST    component groups. LIST is a comma-separated list
353                            of NAME[:PROB] entries where NAME is a component
354                            (group) and PROB the probability associated with
355                            NAME (default 0.5).
356   --random-seed=VALUE      seed value for --enable/disable-random
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     pr -n -t $1 >> $logfile
372     log END $1
373 }
374
375 echolog(){
376     log "$@"
377     echo "$@"
378 }
379
380 warn(){
381     log "WARNING: $*"
382     WARNINGS="${WARNINGS}WARNING: $*\n"
383 }
384
385 die(){
386     echolog "$@"
387     cat <<EOF
388
389 If you think configure made a mistake, make sure you are using the latest
390 version from Git.  If the latest version fails, report the problem to the
391 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
392 EOF
393     if disabled logging; then
394         cat <<EOF
395 Rerun configure with logging enabled (do not use --disable-logging), and
396 include the log this produces with your report.
397 EOF
398     else
399         cat <<EOF
400 Include the log file "$logfile" produced by configure as this will help
401 solving the problem.
402 EOF
403     fi
404     exit 1
405 }
406
407 # Avoid locale weirdness, besides we really just want to translate ASCII.
408 toupper(){
409     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
410 }
411
412 tolower(){
413     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
414 }
415
416 c_escape(){
417     echo "$*" | sed 's/["\\]/\\\0/g'
418 }
419
420 sh_quote(){
421     v=$(echo "$1" | sed "s/'/'\\\\''/g")
422     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
423     echo "$v"
424 }
425
426 cleanws(){
427     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\r//g'
428 }
429
430 filter(){
431     pat=$1
432     shift
433     for v; do
434         eval "case $v in $pat) echo $v ;; esac"
435     done
436 }
437
438 filter_out(){
439     pat=$1
440     shift
441     for v; do
442         eval "case $v in $pat) ;; *) echo $v ;; esac"
443     done
444 }
445
446 map(){
447     m=$1
448     shift
449     for v; do eval $m; done
450 }
451
452 add_suffix(){
453     suffix=$1
454     shift
455     for v; do echo ${v}${suffix}; done
456 }
457
458 set_all(){
459     value=$1
460     shift
461     for var in $*; do
462         eval $var=$value
463     done
464 }
465
466 set_weak(){
467     value=$1
468     shift
469     for var; do
470         eval : \${$var:=$value}
471     done
472 }
473
474 sanitize_var_name(){
475     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
476 }
477
478 set_safe(){
479     var=$1
480     shift
481     eval $(sanitize_var_name "$var")='$*'
482 }
483
484 get_safe(){
485     eval echo \$$(sanitize_var_name "$1")
486 }
487
488 pushvar(){
489     for pvar in $*; do
490         eval level=\${${pvar}_level:=0}
491         eval ${pvar}_${level}="\$$pvar"
492         eval ${pvar}_level=$(($level+1))
493     done
494 }
495
496 popvar(){
497     for pvar in $*; do
498         eval level=\${${pvar}_level:-0}
499         test $level = 0 && continue
500         eval level=$(($level-1))
501         eval $pvar="\${${pvar}_${level}}"
502         eval ${pvar}_level=$level
503         eval unset ${pvar}_${level}
504     done
505 }
506
507 enable(){
508     set_all yes $*
509 }
510
511 disable(){
512     set_all no $*
513 }
514
515 enable_weak(){
516     set_weak yes $*
517 }
518
519 disable_weak(){
520     set_weak no $*
521 }
522
523 enable_safe(){
524     for var; do
525         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
526     done
527 }
528
529 disable_safe(){
530     for var; do
531         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
532     done
533 }
534
535 do_enable_deep(){
536     for var; do
537         enabled $var && continue
538         eval sel="\$${var}_select"
539         eval sgs="\$${var}_suggest"
540         pushvar var sgs
541         enable_deep $sel
542         popvar sgs
543         enable_deep_weak $sgs
544         popvar var
545     done
546 }
547
548 enable_deep(){
549     do_enable_deep $*
550     enable $*
551 }
552
553 enable_deep_weak(){
554     for var; do
555         disabled $var && continue
556         pushvar var
557         do_enable_deep $var
558         popvar var
559         enable_weak $var
560     done
561 }
562
563 enabled(){
564     test "${1#!}" = "$1" && op== || op=!=
565     eval test "x\$${1#!}" $op "xyes"
566 }
567
568 disabled(){
569     test "${1#!}" = "$1" && op== || op=!=
570     eval test "x\$${1#!}" $op "xno"
571 }
572
573 enabled_all(){
574     for opt; do
575         enabled $opt || return 1
576     done
577 }
578
579 disabled_all(){
580     for opt; do
581         disabled $opt || return 1
582     done
583 }
584
585 enabled_any(){
586     for opt; do
587         enabled $opt && return 0
588     done
589 }
590
591 disabled_any(){
592     for opt; do
593         disabled $opt && return 0
594     done
595     return 1
596 }
597
598 set_default(){
599     for opt; do
600         eval : \${$opt:=\$${opt}_default}
601     done
602 }
603
604 is_in(){
605     value=$1
606     shift
607     for var in $*; do
608         [ $var = $value ] && return 0
609     done
610     return 1
611 }
612
613 do_check_deps(){
614     for cfg; do
615         cfg="${cfg#!}"
616         enabled ${cfg}_checking && die "Circular dependency for $cfg."
617         disabled ${cfg}_checking && continue
618         enable ${cfg}_checking
619         append allopts $cfg
620
621         eval dep_all="\$${cfg}_deps"
622         eval dep_any="\$${cfg}_deps_any"
623         eval dep_sel="\$${cfg}_select"
624         eval dep_sgs="\$${cfg}_suggest"
625         eval dep_ifa="\$${cfg}_if"
626         eval dep_ifn="\$${cfg}_if_any"
627
628         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
629         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
630         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
631
632         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
633         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
634         enabled_all  $dep_all || disable $cfg
635         enabled_any  $dep_any || disable $cfg
636         disabled_any $dep_sel && disable $cfg
637
638         if enabled $cfg; then
639             enable_deep $dep_sel
640             enable_deep_weak $dep_sgs
641         fi
642
643         disable ${cfg}_checking
644     done
645 }
646
647 check_deps(){
648     unset allopts
649
650     do_check_deps "$@"
651
652     for cfg in $allopts; do
653         enabled $cfg || continue
654         eval dep_extralibs="\$${cfg}_extralibs"
655         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
656     done
657 }
658
659 print_config(){
660     pfx=$1
661     files=$2
662     shift 2
663     map 'eval echo "$v \${$v:-no}"' "$@" |
664     awk "BEGIN { split(\"$files\", files) }
665         {
666             c = \"$pfx\" toupper(\$1);
667             v = \$2;
668             sub(/yes/, 1, v);
669             sub(/no/,  0, v);
670             for (f in files) {
671                 file = files[f];
672                 if (file ~ /\\.h\$/) {
673                     printf(\"#define %s %d\\n\", c, v) >>file;
674                 } else if (file ~ /\\.asm\$/) {
675                     printf(\"%%define %s %d\\n\", c, v) >>file;
676                 } else if (file ~ /\\.mak\$/) {
677                     n = -v ? \"\" : \"!\";
678                     printf(\"%s%s=yes\\n\", n, c) >>file;
679                 } else if (file ~ /\\.texi\$/) {
680                     pre = -v ? \"\" : \"@c \";
681                     yesno = \$2;
682                     c2 = tolower(c);
683                     gsub(/_/, \"-\", c2);
684                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
685                 }
686             }
687         }"
688 }
689
690 print_enabled(){
691     suf=$1
692     shift
693     for v; do
694         enabled $v && printf "%s\n" ${v%$suf};
695     done
696 }
697
698 append(){
699     var=$1
700     shift
701     eval "$var=\"\$$var $*\""
702 }
703
704 prepend(){
705     var=$1
706     shift
707     eval "$var=\"$* \$$var\""
708 }
709
710 add_cppflags(){
711     append CPPFLAGS "$@"
712 }
713
714 add_cflags(){
715     append CFLAGS $($cflags_filter "$@")
716 }
717
718 add_cxxflags(){
719     append CXXFLAGS $($cflags_filter "$@")
720 }
721
722 add_asflags(){
723     append ASFLAGS $($asflags_filter "$@")
724 }
725
726 add_ldflags(){
727     append LDFLAGS $($ldflags_filter "$@")
728 }
729
730 add_extralibs(){
731     prepend extralibs $($ldflags_filter "$@")
732 }
733
734 add_host_cppflags(){
735     append host_cppflags "$@"
736 }
737
738 add_host_cflags(){
739     append host_cflags $($host_cflags_filter "$@")
740 }
741
742 add_host_ldflags(){
743     append host_ldflags $($host_ldflags_filter "$@")
744 }
745
746 add_compat(){
747     append compat_objs $1
748     shift
749     map 'add_cppflags -D$v' "$@"
750 }
751
752 check_cmd(){
753     log "$@"
754     "$@" >> $logfile 2>&1
755 }
756
757 cc_o(){
758     eval printf '%s\\n' $CC_O
759 }
760
761 cc_e(){
762     eval printf '%s\\n' $CC_E
763 }
764
765 check_cc(){
766     log check_cc "$@"
767     cat > $TMPC
768     log_file $TMPC
769     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
770 }
771
772 check_cxx(){
773     log check_cxx "$@"
774     cat > $TMPCPP
775     log_file $TMPCPP
776     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
777 }
778
779 check_cpp(){
780     log check_cpp "$@"
781     cat > $TMPC
782     log_file $TMPC
783     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
784 }
785
786 as_o(){
787     eval printf '%s\\n' $AS_O
788 }
789
790 check_as(){
791     log check_as "$@"
792     cat > $TMPS
793     log_file $TMPS
794     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
795 }
796
797 check_inline_asm(){
798     log check_inline_asm "$@"
799     name="$1"
800     code="$2"
801     shift 2
802     disable $name
803     check_cc "$@" <<EOF && enable $name
804 void foo(void){ __asm__ volatile($code); }
805 EOF
806 }
807
808 check_insn(){
809     log check_insn "$@"
810     check_inline_asm ${1}_inline "\"$2\""
811     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
812 }
813
814 check_yasm(){
815     log check_yasm "$@"
816     echo "$1" > $TMPS
817     log_file $TMPS
818     shift 1
819     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
820 }
821
822 ld_o(){
823     eval printf '%s\\n' $LD_O
824 }
825
826 check_ld(){
827     log check_ld "$@"
828     type=$1
829     shift 1
830     flags=$(filter_out '-l*|*.so' $@)
831     libs=$(filter '-l*|*.so' $@)
832     check_$type $($cflags_filter $flags) || return
833     flags=$($ldflags_filter $flags)
834     libs=$($ldflags_filter $libs)
835     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
836 }
837
838 check_code(){
839     log check_code "$@"
840     check=$1
841     headers=$2
842     code=$3
843     shift 3
844     {
845         for hdr in $headers; do
846             echo "#include <$hdr>"
847         done
848         echo "int main(void) { $code; return 0; }"
849     } | check_$check "$@"
850 }
851
852 check_cppflags(){
853     log check_cppflags "$@"
854     check_cc "$@" <<EOF && append CPPFLAGS "$@"
855 int x;
856 EOF
857 }
858
859 check_cflags(){
860     log check_cflags "$@"
861     set -- $($cflags_filter "$@")
862     check_cc "$@" <<EOF && append CFLAGS "$@"
863 int x;
864 EOF
865 }
866
867 check_cxxflags(){
868     log check_cxxflags "$@"
869     set -- $($cflags_filter "$@")
870     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
871 int x;
872 EOF
873 }
874
875 test_ldflags(){
876     log test_ldflags "$@"
877     check_ld "cc" "$@" <<EOF
878 int main(void){ return 0; }
879 EOF
880 }
881
882 check_ldflags(){
883     log check_ldflags "$@"
884     test_ldflags "$@" && add_ldflags "$@"
885 }
886
887 check_header(){
888     log check_header "$@"
889     header=$1
890     shift
891     disable_safe $header
892     check_cpp "$@" <<EOF && enable_safe $header
893 #include <$header>
894 int x;
895 EOF
896 }
897
898 check_func(){
899     log check_func "$@"
900     func=$1
901     shift
902     disable $func
903     check_ld "cc" "$@" <<EOF && enable $func
904 extern int $func();
905 int main(void){ $func(); }
906 EOF
907 }
908
909 check_mathfunc(){
910     log check_mathfunc "$@"
911     func=$1
912     narg=$2
913     shift 2
914     test $narg = 2 && args="f, g" || args="f"
915     disable $func
916     check_ld "cc" "$@" <<EOF && enable $func
917 #include <math.h>
918 float foo(float f, float g) { return $func($args); }
919 int main(void){ return (int) foo; }
920 EOF
921 }
922
923 check_func_headers(){
924     log check_func_headers "$@"
925     headers=$1
926     funcs=$2
927     shift 2
928     {
929         for hdr in $headers; do
930             echo "#include <$hdr>"
931         done
932         for func in $funcs; do
933             echo "long check_$func(void) { return (long) $func; }"
934         done
935         echo "int main(void) { return 0; }"
936     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
937 }
938
939 check_class_headers_cpp(){
940     log check_class_headers_cpp "$@"
941     headers=$1
942     classes=$2
943     shift 2
944     {
945         for hdr in $headers; do
946             echo "#include <$hdr>"
947         done
948         echo "int main(void) { "
949         i=1
950         for class in $classes; do
951             echo "$class obj$i;"
952             i=$(expr $i + 1)
953         done
954         echo "return 0; }"
955     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
956 }
957
958 check_cpp_condition(){
959     log check_cpp_condition "$@"
960     header=$1
961     condition=$2
962     shift 2
963     check_cpp "$@" <<EOF
964 #include <$header>
965 #if !($condition)
966 #error "unsatisfied condition: $condition"
967 #endif
968 EOF
969 }
970
971 check_lib(){
972     log check_lib "$@"
973     header="$1"
974     func="$2"
975     shift 2
976     check_header $header && check_func $func "$@" && add_extralibs "$@"
977 }
978
979 check_lib2(){
980     log check_lib2 "$@"
981     headers="$1"
982     funcs="$2"
983     shift 2
984     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
985 }
986
987 check_lib_cpp(){
988     log check_lib_cpp "$@"
989     headers="$1"
990     classes="$2"
991     shift 2
992     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
993 }
994
995 check_pkg_config(){
996     log check_pkg_config "$@"
997     pkg="$1"
998     headers="$2"
999     funcs="$3"
1000     shift 3
1001     check_cmd $pkg_config --exists --print-errors $pkg || return
1002     pkg_cflags=$($pkg_config --cflags $pkg)
1003     pkg_libs=$($pkg_config --libs $pkg)
1004     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1005         set_safe ${pkg}_cflags $pkg_cflags   &&
1006         set_safe ${pkg}_libs   $pkg_libs
1007 }
1008
1009 check_exec(){
1010     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1011 }
1012
1013 check_exec_crash(){
1014     code=$(cat)
1015
1016     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1017     # are safe but may not be available everywhere.  Thus we use
1018     # raise(SIGTERM) instead.  The check is run in a subshell so we
1019     # can redirect the "Terminated" message from the shell.  SIGBUS
1020     # is not defined by standard C so it is used conditionally.
1021
1022     (check_exec "$@") >> $logfile 2>&1 <<EOF
1023 #include <signal.h>
1024 static void sighandler(int sig){
1025     raise(SIGTERM);
1026 }
1027 int foo(void){
1028     $code
1029 }
1030 int (*func_ptr)(void) = foo;
1031 int main(void){
1032     signal(SIGILL, sighandler);
1033     signal(SIGFPE, sighandler);
1034     signal(SIGSEGV, sighandler);
1035 #ifdef SIGBUS
1036     signal(SIGBUS, sighandler);
1037 #endif
1038     return func_ptr();
1039 }
1040 EOF
1041 }
1042
1043 check_type(){
1044     log check_type "$@"
1045     headers=$1
1046     type=$2
1047     shift 2
1048     disable_safe "$type"
1049     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1050 }
1051
1052 check_struct(){
1053     log check_struct "$@"
1054     headers=$1
1055     struct=$2
1056     member=$3
1057     shift 3
1058     disable_safe "${struct}_${member}"
1059     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1060         enable_safe "${struct}_${member}"
1061 }
1062
1063 check_builtin(){
1064     log check_builtin "$@"
1065     name=$1
1066     headers=$2
1067     builtin=$3
1068     shift 3
1069     disable "$name"
1070     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1071 }
1072
1073 require(){
1074     name="$1"
1075     header="$2"
1076     func="$3"
1077     shift 3
1078     check_lib $header $func "$@" || die "ERROR: $name not found"
1079 }
1080
1081 require2(){
1082     name="$1"
1083     headers="$2"
1084     func="$3"
1085     shift 3
1086     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1087 }
1088
1089 require_cpp(){
1090     name="$1"
1091     headers="$2"
1092     classes="$3"
1093     shift 3
1094     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1095 }
1096
1097 require_pkg_config(){
1098     pkg="$1"
1099     check_pkg_config "$@" || die "ERROR: $pkg not found"
1100     add_cflags    $(get_safe ${pkg}_cflags)
1101     add_extralibs $(get_safe ${pkg}_libs)
1102 }
1103
1104 hostcc_o(){
1105     eval printf '%s\\n' $HOSTCC_O
1106 }
1107
1108 check_host_cc(){
1109     log check_host_cc "$@"
1110     cat > $TMPC
1111     log_file $TMPC
1112     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1113 }
1114
1115 check_host_cppflags(){
1116     log check_host_cppflags "$@"
1117     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1118 int x;
1119 EOF
1120 }
1121
1122 check_host_cflags(){
1123     log check_host_cflags "$@"
1124     set -- $($host_cflags_filter "$@")
1125     check_host_cc "$@" <<EOF && append host_cflags "$@"
1126 int x;
1127 EOF
1128 }
1129
1130 apply(){
1131     file=$1
1132     shift
1133     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1134 }
1135
1136 cp_if_changed(){
1137     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1138     mkdir -p "$(dirname $2)"
1139     $cp_f "$1" "$2"
1140 }
1141
1142 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1143 # system-dependent things.
1144
1145 COMPONENT_LIST="
1146     bsfs
1147     decoders
1148     demuxers
1149     encoders
1150     filters
1151     hwaccels
1152     indevs
1153     muxers
1154     outdevs
1155     parsers
1156     protocols
1157 "
1158
1159 EXTERNAL_LIBRARY_LIST="
1160     avisynth
1161     bzlib
1162     crystalhd
1163     fontconfig
1164     frei0r
1165     gnutls
1166     iconv
1167     ladspa
1168     libaacplus
1169     libass
1170     libbluray
1171     libcaca
1172     libcdio
1173     libcelt
1174     libdc1394
1175     libfaac
1176     libfdk_aac
1177     libflite
1178     libfreetype
1179     libgme
1180     libgsm
1181     libiec61883
1182     libilbc
1183     libmodplug
1184     libmp3lame
1185     libnut
1186     libopencore_amrnb
1187     libopencore_amrwb
1188     libopencv
1189     libopenjpeg
1190     libopus
1191     libpulse
1192     libquvi
1193     librtmp
1194     libschroedinger
1195     libshine
1196     libsoxr
1197     libspeex
1198     libssh
1199     libstagefright_h264
1200     libtheora
1201     libtwolame
1202     libutvideo
1203     libv4l2
1204     libvidstab
1205     libvo_aacenc
1206     libvo_amrwbenc
1207     libvorbis
1208     libvpx
1209     libwavpack
1210     libx264
1211     libxavs
1212     libxvid
1213     libzmq
1214     libzvbi
1215     openal
1216     opencl
1217     openssl
1218     x11grab
1219     zlib
1220 "
1221
1222 DOCUMENT_LIST="
1223     doc
1224     htmlpages
1225     manpages
1226     podpages
1227     txtpages
1228 "
1229
1230 HWACCEL_LIST="
1231     dxva2
1232     vaapi
1233     vda
1234     vdpau
1235 "
1236
1237 LIBRARY_LIST="
1238     avcodec
1239     avdevice
1240     avfilter
1241     avformat
1242     avresample
1243     avutil
1244     postproc
1245     swresample
1246     swscale
1247 "
1248
1249 PROGRAM_LIST="
1250     ffplay
1251     ffprobe
1252     ffserver
1253     ffmpeg
1254 "
1255
1256 CONFIG_LIST="
1257     $COMPONENT_LIST
1258     $DOCUMENT_LIST
1259     $EXTERNAL_LIBRARY_LIST
1260     $HWACCEL_LIST
1261     $LIBRARY_LIST
1262     $PROGRAM_LIST
1263     dct
1264     dwt
1265     error_resilience
1266     fast_unaligned
1267     fft
1268     ftrapv
1269     gpl
1270     gray
1271     hardcoded_tables
1272     incompatible_libav_abi
1273     incompatible_fork_abi
1274     lsp
1275     lzo
1276     mdct
1277     memalign_hack
1278     memory_poisoning
1279     network
1280     nonfree
1281     pic
1282     rdft
1283     runtime_cpudetect
1284     safe_bitstream_reader
1285     shared
1286     small
1287     sram
1288     static
1289     swscale_alpha
1290     thumb
1291     version3
1292     xmm_clobber_test
1293 "
1294
1295 THREADS_LIST='
1296     pthreads
1297     w32threads
1298     os2threads
1299 '
1300
1301 ATOMICS_LIST='
1302     atomics_gcc
1303     atomics_suncc
1304     atomics_win32
1305 '
1306
1307 ARCH_LIST='
1308     aarch64
1309     alpha
1310     arm
1311     avr32
1312     avr32_ap
1313     avr32_uc
1314     bfin
1315     ia64
1316     m68k
1317     mips
1318     mips64
1319     parisc
1320     ppc
1321     ppc64
1322     s390
1323     sh4
1324     sparc
1325     sparc64
1326     tilegx
1327     tilepro
1328     tomi
1329     x86
1330     x86_32
1331     x86_64
1332 '
1333
1334 ARCH_EXT_LIST_ARM='
1335     armv5te
1336     armv6
1337     armv6t2
1338     neon
1339     vfp
1340     vfpv3
1341 '
1342
1343 ARCH_EXT_LIST_X86='
1344     amd3dnow
1345     amd3dnowext
1346     avx
1347     fma4
1348     i686
1349     mmx
1350     mmxext
1351     sse
1352     sse2
1353     sse3
1354     sse4
1355     sse42
1356     ssse3
1357 '
1358
1359 ARCH_EXT_LIST="
1360     $ARCH_EXT_LIST_ARM
1361     $ARCH_EXT_LIST_X86
1362     altivec
1363     ppc4xx
1364     vis
1365     mipsfpu
1366     mips32r2
1367     mipsdspr1
1368     mipsdspr2
1369 "
1370
1371 HAVE_LIST_CMDLINE='
1372     inline_asm
1373     symver
1374     yasm
1375 '
1376
1377 HAVE_LIST_PUB='
1378     bigendian
1379     fast_unaligned
1380     incompatible_libav_abi
1381     incompatible_fork_abi
1382 '
1383
1384 MATH_FUNCS="
1385     atanf
1386     atan2f
1387     cbrt
1388     cbrtf
1389     cosf
1390     exp2
1391     exp2f
1392     expf
1393     isinf
1394     isnan
1395     ldexpf
1396     llrint
1397     llrintf
1398     log2
1399     log2f
1400     log10f
1401     lrint
1402     lrintf
1403     powf
1404     rint
1405     round
1406     roundf
1407     sinf
1408     trunc
1409     truncf
1410 "
1411
1412 HAVE_LIST="
1413     $ARCH_EXT_LIST
1414     $(add_suffix _external $ARCH_EXT_LIST)
1415     $(add_suffix _inline   $ARCH_EXT_LIST)
1416     $HAVE_LIST_CMDLINE
1417     $HAVE_LIST_PUB
1418     $THREADS_LIST
1419     $ATOMICS_LIST
1420     $MATH_FUNCS
1421     access
1422     aligned_malloc
1423     aligned_stack
1424     alsa_asoundlib_h
1425     altivec_h
1426     arpa_inet_h
1427     asm_mod_q
1428     asm_mod_y
1429     asm_types_h
1430     atomic_cas_ptr
1431     atomics_native
1432     attribute_may_alias
1433     attribute_packed
1434     cdio_paranoia_h
1435     cdio_paranoia_paranoia_h
1436     CL_cl_h
1437     clock_gettime
1438     closesocket
1439     CommandLineToArgvW
1440     cpunop
1441     CryptGenRandom
1442     dcbzl
1443     dev_bktr_ioctl_bt848_h
1444     dev_bktr_ioctl_meteor_h
1445     dev_ic_bt8xx_h
1446     dev_video_bktr_ioctl_bt848_h
1447     dev_video_meteor_ioctl_meteor_h
1448     direct_h
1449     dlfcn_h
1450     dlopen
1451     dos_paths
1452     dxva_h
1453     ebp_available
1454     ebx_available
1455     fast_64bit
1456     fast_clz
1457     fast_cmov
1458     fcntl
1459     fork
1460     getaddrinfo
1461     gethrtime
1462     getopt
1463     GetProcessAffinityMask
1464     GetProcessMemoryInfo
1465     GetProcessTimes
1466     GetSystemTimeAsFileTime
1467     getrusage
1468     getservbyport
1469     gettimeofday
1470     glob
1471     gnu_as
1472     gsm_h
1473     ibm_asm
1474     inet_aton
1475     io_h
1476     inline_asm_labels
1477     isatty
1478     jack_port_get_latency_range
1479     kbhit
1480     ldbrx
1481     libdc1394_1
1482     libdc1394_2
1483     local_aligned_16
1484     local_aligned_8
1485     localtime_r
1486     loongson
1487     lzo1x_999_compress
1488     machine_ioctl_bt848_h
1489     machine_ioctl_meteor_h
1490     machine_rw_barrier
1491     makeinfo
1492     malloc_h
1493     MapViewOfFile
1494     memalign
1495     MemoryBarrier
1496     mkstemp
1497     mm_empty
1498     mmap
1499     mprotect
1500     msvcrt
1501     nanosleep
1502     openjpeg_1_5_openjpeg_h
1503     PeekNamedPipe
1504     perl
1505     pod2man
1506     poll_h
1507     posix_memalign
1508     pragma_deprecated
1509     pthread_cancel
1510     rdtsc
1511     rsync_contimeout
1512     sarestart
1513     sched_getaffinity
1514     sdl
1515     SetConsoleTextAttribute
1516     setmode
1517     setrlimit
1518     Sleep
1519     sndio_h
1520     socklen_t
1521     soundcard_h
1522     strerror_r
1523     struct_addrinfo
1524     struct_group_source_req
1525     struct_ip_mreq_source
1526     struct_ipv6_mreq
1527     struct_pollfd
1528     struct_rusage_ru_maxrss
1529     struct_sctp_event_subscribe
1530     struct_sockaddr_in6
1531     struct_sockaddr_sa_len
1532     struct_sockaddr_storage
1533     struct_stat_st_mtim_tv_nsec
1534     struct_v4l2_frmivalenum_discrete
1535     symver_asm_label
1536     symver_gnu_asm
1537     sync_val_compare_and_swap
1538     sysconf
1539     sysctl
1540     sys_mman_h
1541     sys_param_h
1542     sys_resource_h
1543     sys_select_h
1544     sys_soundcard_h
1545     sys_time_h
1546     sys_un_h
1547     sys_videoio_h
1548     termios_h
1549     texi2html
1550     threads
1551     unistd_h
1552     usleep
1553     vfp_args
1554     VirtualAlloc
1555     windows_h
1556     winsock2_h
1557     xform_asm
1558     xmm_clobbers
1559 "
1560
1561 # options emitted with CONFIG_ prefix but not available on the command line
1562 CONFIG_EXTRA="
1563     aandcttables
1564     ac3dsp
1565     audio_frame_queue
1566     dsputil
1567     exif
1568     frame_thread_encoder
1569     gcrypt
1570     golomb
1571     gplv3
1572     h264chroma
1573     h264dsp
1574     h264pred
1575     h264qpel
1576     hpeldsp
1577     huffman
1578     lgplv3
1579     lpc
1580     mpegaudio
1581     mpegaudiodsp
1582     mpegvideo
1583     mpegvideoenc
1584     nettle
1585     rangecoder
1586     riffdec
1587     riffenc
1588     rtpdec
1589     rtpenc_chain
1590     sinewin
1591     videodsp
1592     vp3dsp
1593 "
1594
1595 CMDLINE_SELECT="
1596     $ARCH_EXT_LIST
1597     $CONFIG_LIST
1598     $HAVE_LIST_CMDLINE
1599     $THREADS_LIST
1600     asm
1601     cross_compile
1602     debug
1603     extra_warnings
1604     logging
1605     lto
1606     optimizations
1607     stripping
1608 "
1609
1610 PATHS_LIST='
1611     bindir
1612     datadir
1613     docdir
1614     incdir
1615     libdir
1616     mandir
1617     prefix
1618     shlibdir
1619 '
1620
1621 CMDLINE_SET="
1622     $PATHS_LIST
1623     ar
1624     arch
1625     as
1626     assert_level
1627     build_suffix
1628     cc
1629     cpu
1630     cross_prefix
1631     cxx
1632     dep_cc
1633     extra_version
1634     host_cc
1635     host_cflags
1636     host_ld
1637     host_ldflags
1638     host_libs
1639     host_os
1640     install
1641     ld
1642     logfile
1643     malloc_prefix
1644     nm
1645     optflags
1646     pkg_config
1647     progs_suffix
1648     random_seed
1649     samples
1650     strip
1651     sysinclude
1652     sysroot
1653     target_exec
1654     target_os
1655     target_path
1656     target_samples
1657     tempprefix
1658     toolchain
1659     valgrind
1660     yasmexe
1661 "
1662
1663 CMDLINE_APPEND="
1664     extra_cflags
1665     extra_cxxflags
1666     host_cppflags
1667 "
1668
1669 # code dependency declarations
1670
1671 # architecture extensions
1672
1673 armv5te_deps="arm"
1674 armv6_deps="arm"
1675 armv6t2_deps="arm"
1676 neon_deps="arm"
1677 vfp_deps="arm"
1678 vfpv3_deps="vfp"
1679
1680 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1681
1682 mipsfpu_deps="mips"
1683 mips32r2_deps="mips"
1684 mipsdspr1_deps="mips"
1685 mipsdspr2_deps="mips"
1686
1687 altivec_deps="ppc"
1688 ppc4xx_deps="ppc"
1689
1690 vis_deps="sparc"
1691
1692 cpunop_deps="i686"
1693 x86_64_select="i686"
1694 x86_64_suggest="fast_cmov"
1695
1696 amd3dnow_deps="mmx"
1697 amd3dnowext_deps="amd3dnow"
1698 mmx_deps="x86"
1699 mmxext_deps="mmx"
1700 sse_deps="mmxext"
1701 sse2_deps="sse"
1702 sse3_deps="sse2"
1703 ssse3_deps="sse3"
1704 sse4_deps="ssse3"
1705 sse42_deps="sse4"
1706 avx_deps="sse42"
1707 fma4_deps="avx"
1708
1709 mmx_external_deps="yasm"
1710 mmx_inline_deps="inline_asm"
1711 mmx_suggest="mmx_external mmx_inline"
1712
1713 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1714     eval dep=\$${ext}_deps
1715     eval ${ext}_external_deps='"${dep}_external"'
1716     eval ${ext}_inline_deps='"${dep}_inline"'
1717     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1718 done
1719
1720 aligned_stack_if_any="ppc x86"
1721 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1722 fast_clz_if_any="alpha avr32 mips ppc x86"
1723 fast_unaligned_if_any="ppc x86"
1724
1725 inline_asm_deps="!tms470"
1726 need_memalign="altivec neon sse"
1727
1728 symver_if_any="symver_asm_label symver_gnu_asm"
1729
1730 log2_deps="!msvcrt"
1731
1732 # subsystems
1733 dct_select="rdft"
1734 error_resilience_select="dsputil"
1735 frame_thread_encoder_deps="encoders threads"
1736 lpc_select="dsputil"
1737 mdct_select="fft"
1738 rdft_select="fft"
1739 mpegaudio_select="mpegaudiodsp"
1740 mpegaudiodsp_select="dct"
1741 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1742 mpegvideoenc_select="mpegvideo"
1743
1744 # decoders / encoders
1745 aac_decoder_select="mdct sinewin"
1746 aac_encoder_select="audio_frame_queue mdct sinewin"
1747 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1748 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1749 ac3_encoder_select="mdct ac3dsp dsputil"
1750 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1751 aic_decoder_select="dsputil golomb"
1752 alac_encoder_select="lpc"
1753 als_decoder_select="dsputil"
1754 amrnb_decoder_select="lsp"
1755 amrwb_decoder_select="lsp"
1756 amv_decoder_select="dsputil hpeldsp exif"
1757 amv_encoder_select="aandcttables"
1758 ape_decoder_select="dsputil"
1759 asv1_decoder_select="dsputil"
1760 asv1_encoder_select="dsputil"
1761 asv2_decoder_select="dsputil"
1762 asv2_encoder_select="dsputil"
1763 atrac1_decoder_select="mdct sinewin"
1764 atrac3_decoder_select="mdct"
1765 avrn_decoder_select="exif"
1766 bink_decoder_select="dsputil hpeldsp"
1767 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1768 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1769 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1770 cllc_decoder_select="dsputil"
1771 comfortnoise_encoder_select="lpc"
1772 cook_decoder_select="dsputil mdct sinewin"
1773 cscd_decoder_select="lzo"
1774 cscd_decoder_suggest="zlib"
1775 dca_decoder_select="mdct"
1776 dirac_decoder_select="dsputil dwt golomb videodsp"
1777 dnxhd_decoder_select="dsputil"
1778 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1779 dvvideo_decoder_select="dsputil"
1780 dvvideo_encoder_select="dsputil"
1781 dxa_decoder_select="zlib"
1782 eac3_decoder_select="ac3_decoder"
1783 eac3_encoder_select="ac3_encoder"
1784 eamad_decoder_select="aandcttables dsputil mpegvideo"
1785 eatgq_decoder_select="aandcttables"
1786 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1787 exr_decoder_select="zlib"
1788 ffv1_decoder_select="dsputil golomb rangecoder"
1789 ffv1_encoder_select="dsputil rangecoder"
1790 ffvhuff_decoder_select="dsputil"
1791 ffvhuff_encoder_select="dsputil huffman"
1792 flac_decoder_select="golomb"
1793 flac_encoder_select="dsputil golomb lpc"
1794 flashsv_decoder_select="zlib"
1795 flashsv_encoder_select="zlib"
1796 flashsv2_encoder_select="zlib"
1797 flashsv2_decoder_select="zlib"
1798 flv_decoder_select="h263_decoder"
1799 flv_encoder_select="h263_encoder"
1800 fourxm_decoder_select="dsputil"
1801 fraps_decoder_select="dsputil huffman"
1802 g2m_decoder_select="dsputil zlib"
1803 g729_decoder_select="dsputil"
1804 h261_decoder_select="error_resilience mpegvideo"
1805 h261_encoder_select="aandcttables mpegvideoenc"
1806 h263_decoder_select="error_resilience h263_parser mpegvideo"
1807 h263_encoder_select="aandcttables mpegvideoenc"
1808 h263i_decoder_select="h263_decoder"
1809 h263p_encoder_select="h263_encoder"
1810 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1811 h264_decoder_suggest="error_resilience"
1812 hevc_decoder_select="dsputil golomb videodsp"
1813 huffyuv_decoder_select="dsputil"
1814 huffyuv_encoder_select="dsputil huffman"
1815 iac_decoder_select="dsputil fft mdct sinewin"
1816 imc_decoder_select="dsputil fft mdct sinewin"
1817 indeo3_decoder_select="hpeldsp"
1818 interplay_video_decoder_select="hpeldsp"
1819 jpegls_decoder_select="dsputil golomb hpeldsp exif"
1820 jpegls_encoder_select="golomb"
1821 jv_decoder_select="dsputil"
1822 lagarith_decoder_select="dsputil"
1823 ljpeg_encoder_select="aandcttables mpegvideoenc"
1824 loco_decoder_select="golomb"
1825 mdec_decoder_select="dsputil error_resilience mpegvideo"
1826 metasound_decoder_select="lsp mdct sinewin"
1827 mimic_decoder_select="dsputil hpeldsp"
1828 mjpeg_decoder_select="dsputil hpeldsp exif"
1829 mjpegb_decoder_select="dsputil hpeldsp exif"
1830 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1831 mlp_decoder_select="dsputil mlp_parser"
1832 motionpixels_decoder_select="dsputil"
1833 mp1_decoder_select="mpegaudio"
1834 mp1float_decoder_select="mpegaudio"
1835 mp2_decoder_select="mpegaudio"
1836 mp2float_decoder_select="mpegaudio"
1837 mp3_decoder_select="mpegaudio"
1838 mp3adu_decoder_select="mpegaudio"
1839 mp3adufloat_decoder_select="mpegaudio"
1840 mp3float_decoder_select="mpegaudio"
1841 mp3on4_decoder_select="mpegaudio"
1842 mp3on4float_decoder_select="mpegaudio"
1843 mpc7_decoder_select="dsputil mpegaudiodsp"
1844 mpc8_decoder_select="dsputil mpegaudiodsp"
1845 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1846 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1847 mpeg1video_decoder_select="error_resilience mpegvideo"
1848 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1849 mpeg2video_decoder_select="error_resilience mpegvideo"
1850 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1851 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1852 mpeg4_encoder_select="h263_encoder"
1853 msmpeg4v1_decoder_select="h263_decoder"
1854 msmpeg4v2_decoder_select="h263_decoder"
1855 msmpeg4v2_encoder_select="h263_encoder"
1856 msmpeg4v3_decoder_select="h263_decoder"
1857 msmpeg4v3_encoder_select="h263_encoder"
1858 mss2_decoder_select="error_resilience vc1_decoder"
1859 mxpeg_decoder_select="dsputil hpeldsp exif"
1860 nellymoser_decoder_select="mdct sinewin"
1861 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1862 nuv_decoder_select="dsputil lzo"
1863 png_decoder_select="zlib"
1864 png_encoder_select="dsputil zlib"
1865 prores_decoder_select="dsputil"
1866 prores_encoder_select="dsputil"
1867 qcelp_decoder_select="lsp"
1868 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1869 ra_144_encoder_select="audio_frame_queue lpc"
1870 ralf_decoder_select="golomb"
1871 rtjpeg_decoder_select="dsputil"
1872 rv10_decoder_select="error_resilience h263_decoder"
1873 rv10_encoder_select="h263_encoder"
1874 rv20_decoder_select="error_resilience h263_decoder"
1875 rv20_encoder_select="h263_encoder"
1876 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1877 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1878 shorten_decoder_select="golomb"
1879 sipr_decoder_select="lsp"
1880 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1881 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1882 sonic_decoder_select="golomb"
1883 sonic_encoder_select="golomb"
1884 sonic_ls_encoder_select="golomb"
1885 sp5x_decoder_select="dsputil hpeldsp exif"
1886 svq1_decoder_select="hpeldsp"
1887 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1888 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1889 svq3_decoder_suggest="error_resilience zlib"
1890 tak_decoder_select="dsputil"
1891 theora_decoder_select="vp3_decoder"
1892 tiff_decoder_suggest="zlib"
1893 tiff_encoder_suggest="zlib"
1894 thp_decoder_select="dsputil hpeldsp exif"
1895 truehd_decoder_select="mlp_parser"
1896 truemotion2_decoder_select="dsputil"
1897 truespeech_decoder_select="dsputil"
1898 tscc_decoder_select="zlib"
1899 twinvq_decoder_select="mdct lsp sinewin"
1900 utvideo_decoder_select="dsputil"
1901 utvideo_encoder_select="dsputil huffman"
1902 vble_decoder_select="dsputil"
1903 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1904 vc1image_decoder_select="vc1_decoder"
1905 vorbis_decoder_select="mdct"
1906 vorbis_encoder_select="mdct"
1907 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1908 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1909 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1910 vp6a_decoder_select="vp6_decoder"
1911 vp6f_decoder_select="vp6_decoder"
1912 vp8_decoder_select="h264pred videodsp"
1913 vp9_decoder_select="videodsp"
1914 webp_decoder_select="vp8_decoder"
1915 wmapro_decoder_select="mdct sinewin"
1916 wmav1_decoder_select="mdct sinewin"
1917 wmav1_encoder_select="mdct sinewin"
1918 wmav2_decoder_select="mdct sinewin"
1919 wmav2_encoder_select="mdct sinewin"
1920 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1921 wmv1_decoder_select="h263_decoder"
1922 wmv1_encoder_select="h263_encoder"
1923 wmv2_decoder_select="h263_decoder videodsp"
1924 wmv2_encoder_select="h263_encoder"
1925 wmv3_decoder_select="vc1_decoder"
1926 wmv3image_decoder_select="wmv3_decoder"
1927 zerocodec_decoder_select="zlib"
1928 zlib_decoder_select="zlib"
1929 zlib_encoder_select="zlib"
1930 zmbv_decoder_select="zlib"
1931 zmbv_encoder_select="zlib"
1932
1933 # hardware accelerators
1934 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1935 dxva2_deps="dxva2api_h"
1936 vaapi_deps="va_va_h"
1937 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1938 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1939 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1940
1941 h263_vaapi_hwaccel_deps="vaapi"
1942 h263_vaapi_hwaccel_select="h263_decoder"
1943 h263_vdpau_hwaccel_deps="vdpau"
1944 h263_vdpau_hwaccel_select="h263_decoder"
1945 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1946 h264_dxva2_hwaccel_deps="dxva2"
1947 h264_dxva2_hwaccel_select="h264_decoder"
1948 h264_vaapi_hwaccel_deps="vaapi"
1949 h264_vaapi_hwaccel_select="h264_decoder"
1950 h264_vda_decoder_deps="vda"
1951 h264_vda_decoder_select="h264_decoder"
1952 h264_vda_hwaccel_deps="vda"
1953 h264_vda_hwaccel_select="h264_decoder"
1954 h264_vdpau_decoder_deps="vdpau"
1955 h264_vdpau_decoder_select="h264_decoder"
1956 h264_vdpau_hwaccel_deps="vdpau"
1957 h264_vdpau_hwaccel_select="h264_decoder"
1958 mpeg_vdpau_decoder_deps="vdpau"
1959 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1960 mpeg1_vdpau_decoder_deps="vdpau"
1961 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1962 mpeg1_vdpau_hwaccel_deps="vdpau"
1963 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1964 mpeg2_crystalhd_decoder_select="crystalhd"
1965 mpeg2_dxva2_hwaccel_deps="dxva2"
1966 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1967 mpeg2_vaapi_hwaccel_deps="vaapi"
1968 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1969 mpeg2_vdpau_hwaccel_deps="vdpau"
1970 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1971 mpeg4_crystalhd_decoder_select="crystalhd"
1972 mpeg4_vaapi_hwaccel_deps="vaapi"
1973 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1974 mpeg4_vdpau_decoder_deps="vdpau"
1975 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1976 mpeg4_vdpau_hwaccel_deps="vdpau"
1977 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1978 msmpeg4_crystalhd_decoder_select="crystalhd"
1979 vc1_crystalhd_decoder_select="crystalhd"
1980 vc1_dxva2_hwaccel_deps="dxva2"
1981 vc1_dxva2_hwaccel_select="vc1_decoder"
1982 vc1_vaapi_hwaccel_deps="vaapi"
1983 vc1_vaapi_hwaccel_select="vc1_decoder"
1984 vc1_vdpau_decoder_deps="vdpau"
1985 vc1_vdpau_decoder_select="vc1_decoder"
1986 vc1_vdpau_hwaccel_deps="vdpau"
1987 vc1_vdpau_hwaccel_select="vc1_decoder"
1988 wmv3_crystalhd_decoder_select="crystalhd"
1989 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1990 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1991 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1992 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1993
1994 # parsers
1995 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1996 mpeg4video_parser_select="error_resilience mpegvideo"
1997 mpegvideo_parser_select="error_resilience mpegvideo"
1998 vc1_parser_select="mpegvideo"
1999
2000 # external libraries
2001 libaacplus_encoder_deps="libaacplus"
2002 libcelt_decoder_deps="libcelt"
2003 libfaac_encoder_deps="libfaac"
2004 libfaac_encoder_select="audio_frame_queue"
2005 libfdk_aac_decoder_deps="libfdk_aac"
2006 libfdk_aac_encoder_deps="libfdk_aac"
2007 libfdk_aac_encoder_select="audio_frame_queue"
2008 libgme_demuxer_deps="libgme"
2009 libgsm_decoder_deps="libgsm"
2010 libgsm_encoder_deps="libgsm"
2011 libgsm_ms_decoder_deps="libgsm"
2012 libgsm_ms_encoder_deps="libgsm"
2013 libilbc_decoder_deps="libilbc"
2014 libilbc_encoder_deps="libilbc"
2015 libmodplug_demuxer_deps="libmodplug"
2016 libmp3lame_encoder_deps="libmp3lame"
2017 libmp3lame_encoder_select="audio_frame_queue"
2018 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2019 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2020 libopencore_amrnb_encoder_select="audio_frame_queue"
2021 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2022 libopenjpeg_decoder_deps="libopenjpeg"
2023 libopenjpeg_encoder_deps="libopenjpeg"
2024 libopus_decoder_deps="libopus"
2025 libopus_encoder_deps="libopus"
2026 libopus_encoder_select="audio_frame_queue"
2027 libquvi_demuxer_deps="libquvi"
2028 libschroedinger_decoder_deps="libschroedinger"
2029 libschroedinger_encoder_deps="libschroedinger"
2030 libshine_encoder_deps="libshine"
2031 libshine_encoder_select="audio_frame_queue"
2032 libspeex_decoder_deps="libspeex"
2033 libspeex_encoder_deps="libspeex"
2034 libspeex_encoder_select="audio_frame_queue"
2035 libstagefright_h264_decoder_deps="libstagefright_h264"
2036 libtheora_encoder_deps="libtheora"
2037 libtwolame_encoder_deps="libtwolame"
2038 libvo_aacenc_encoder_deps="libvo_aacenc"
2039 libvo_aacenc_encoder_select="audio_frame_queue"
2040 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2041 libvorbis_decoder_deps="libvorbis"
2042 libvorbis_encoder_deps="libvorbis"
2043 libvorbis_encoder_select="audio_frame_queue"
2044 libvpx_vp8_decoder_deps="libvpx"
2045 libvpx_vp8_encoder_deps="libvpx"
2046 libvpx_vp9_decoder_deps="libvpx"
2047 libvpx_vp9_encoder_deps="libvpx"
2048 libwavpack_encoder_deps="libwavpack"
2049 libx264_encoder_deps="libx264"
2050 libx264rgb_encoder_deps="libx264"
2051 libxavs_encoder_deps="libxavs"
2052 libxvid_encoder_deps="libxvid"
2053 libutvideo_decoder_deps="libutvideo"
2054 libutvideo_encoder_deps="libutvideo"
2055 libzvbi_teletext_decoder_deps="libzvbi"
2056
2057 # demuxers / muxers
2058 ac3_demuxer_select="ac3_parser"
2059 asf_demuxer_select="riffdec"
2060 asf_muxer_select="riffenc"
2061 asf_stream_muxer_select="asf_muxer"
2062 avi_demuxer_select="riffdec"
2063 avi_muxer_select="riffenc"
2064 avisynth_demuxer_deps="avisynth"
2065 avisynth_demuxer_select="riffdec"
2066 caf_demuxer_select="riffdec"
2067 dirac_demuxer_select="dirac_parser"
2068 dts_demuxer_select="dca_parser"
2069 dtshd_demuxer_select="dca_parser"
2070 dxa_demuxer_select="riffdec"
2071 eac3_demuxer_select="ac3_parser"
2072 f4v_muxer_select="mov_muxer"
2073 flac_demuxer_select="flac_parser"
2074 hls_muxer_select="mpegts_muxer"
2075 ipod_muxer_select="mov_muxer"
2076 ismv_muxer_select="mov_muxer"
2077 libnut_demuxer_deps="libnut"
2078 libnut_muxer_deps="libnut"
2079 matroska_audio_muxer_select="matroska_muxer"
2080 matroska_demuxer_select="riffdec"
2081 matroska_demuxer_suggest="bzlib lzo zlib"
2082 matroska_muxer_select="riffenc"
2083 mmf_muxer_select="riffenc"
2084 mov_demuxer_select="riffdec"
2085 mov_demuxer_suggest="zlib"
2086 mov_muxer_select="riffenc rtpenc_chain"
2087 mp3_demuxer_select="mpegaudio_parser"
2088 mp4_muxer_select="mov_muxer"
2089 mpegts_muxer_select="adts_muxer latm_muxer"
2090 mpegtsraw_demuxer_select="mpegts_demuxer"
2091 mxf_d10_muxer_select="mxf_muxer"
2092 nut_muxer_select="riffenc"
2093 nuv_demuxer_select="riffdec"
2094 ogg_demuxer_select="golomb"
2095 psp_muxer_select="mov_muxer"
2096 rtp_demuxer_select="sdp_demuxer"
2097 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2098 rtsp_demuxer_select="http_protocol rtpdec"
2099 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2100 sap_demuxer_select="sdp_demuxer"
2101 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2102 sdp_demuxer_select="rtpdec"
2103 smoothstreaming_muxer_select="ismv_muxer"
2104 spdif_muxer_select="aac_parser"
2105 tak_demuxer_select="tak_parser"
2106 tg2_muxer_select="mov_muxer"
2107 tgp_muxer_select="mov_muxer"
2108 vobsub_demuxer_select="mpegps_demuxer"
2109 w64_demuxer_select="wav_demuxer"
2110 w64_muxer_select="wav_muxer"
2111 wav_demuxer_select="riffdec"
2112 wav_muxer_select="riffenc"
2113 webm_muxer_select="riffenc"
2114 wtv_demuxer_select="riffdec"
2115 xmv_demuxer_select="riffdec"
2116 xwma_demuxer_select="riffdec"
2117
2118 # indevs / outdevs
2119 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2120 alsa_outdev_deps="alsa_asoundlib_h"
2121 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2122 caca_outdev_deps="libcaca"
2123 dshow_indev_deps="IBaseFilter"
2124 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2125 dv1394_indev_deps="dv1394"
2126 dv1394_indev_select="dv_demuxer"
2127 fbdev_indev_deps="linux_fb_h"
2128 iec61883_indev_deps="libiec61883"
2129 jack_indev_deps="jack_jack_h sem_timedwait"
2130 lavfi_indev_deps="avfilter"
2131 libcdio_indev_deps="libcdio"
2132 libdc1394_indev_deps="libdc1394"
2133 libv4l2_indev_deps="libv4l2"
2134 openal_indev_deps="openal"
2135 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2136 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2137 pulse_indev_deps="libpulse"
2138 pulse_outdev_deps="libpulse"
2139 sdl_outdev_deps="sdl"
2140 sndio_indev_deps="sndio_h"
2141 sndio_outdev_deps="sndio_h"
2142 v4l_indev_deps="linux_videodev_h"
2143 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2144 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2145 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2146 vfwcap_indev_extralibs="-lavicap32"
2147 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2148 xv_outdev_extralibs="-lXv -lX11 -lXext"
2149 x11grab_indev_deps="x11grab"
2150
2151 # protocols
2152 bluray_protocol_deps="libbluray"
2153 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2154 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2155 ffrtmpcrypt_protocol_select="tcp_protocol"
2156 ffrtmphttp_protocol_deps="!librtmp_protocol"
2157 ffrtmphttp_protocol_select="http_protocol"
2158 ftp_protocol_select="tcp_protocol"
2159 gopher_protocol_select="network"
2160 httpproxy_protocol_select="tcp_protocol"
2161 http_protocol_select="tcp_protocol"
2162 https_protocol_select="tls_protocol"
2163 librtmp_protocol_deps="librtmp"
2164 librtmpe_protocol_deps="librtmp"
2165 librtmps_protocol_deps="librtmp"
2166 librtmpt_protocol_deps="librtmp"
2167 librtmpte_protocol_deps="librtmp"
2168 libssh_protocol_deps="libssh"
2169 mmsh_protocol_select="http_protocol"
2170 mmst_protocol_select="network"
2171 rtmp_protocol_deps="!librtmp_protocol"
2172 rtmp_protocol_select="tcp_protocol"
2173 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2174 rtmps_protocol_deps="!librtmp_protocol"
2175 rtmps_protocol_select="tls_protocol"
2176 rtmpt_protocol_select="ffrtmphttp_protocol"
2177 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2178 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2179 rtp_protocol_select="udp_protocol"
2180 sctp_protocol_deps="struct_sctp_event_subscribe"
2181 sctp_protocol_select="network"
2182 srtp_protocol_select="rtp_protocol"
2183 tcp_protocol_select="network"
2184 tls_protocol_deps_any="openssl gnutls"
2185 tls_protocol_select="tcp_protocol"
2186 udp_protocol_select="network"
2187 unix_protocol_deps="sys_un_h"
2188 unix_protocol_select="network"
2189
2190 # filters
2191 aconvert_filter_deps="swresample"
2192 amovie_filter_deps="avcodec avformat"
2193 aresample_filter_deps="swresample"
2194 ass_filter_deps="libass"
2195 asyncts_filter_deps="avresample"
2196 atempo_filter_deps="avcodec"
2197 atempo_filter_select="rdft"
2198 azmq_filter_deps="libzmq"
2199 blackframe_filter_deps="gpl"
2200 boxblur_filter_deps="gpl"
2201 colormatrix_filter_deps="gpl"
2202 cropdetect_filter_deps="gpl"
2203 dctdnoiz_filter_deps="avcodec"
2204 dctdnoiz_filter_select="fft"
2205 delogo_filter_deps="gpl"
2206 deshake_filter_deps="avcodec"
2207 deshake_filter_select="dsputil"
2208 drawtext_filter_deps="libfreetype"
2209 ebur128_filter_deps="gpl"
2210 flite_filter_deps="libflite"
2211 frei0r_filter_deps="frei0r dlopen"
2212 frei0r_filter_extralibs='$ldl'
2213 frei0r_src_filter_deps="frei0r dlopen"
2214 frei0r_src_filter_extralibs='$ldl'
2215 geq_filter_deps="gpl"
2216 histeq_filter_deps="gpl"
2217 hqdn3d_filter_deps="gpl"
2218 interlace_filter_deps="gpl"
2219 kerndeint_filter_deps="gpl"
2220 ladspa_filter_deps="ladspa dlopen"
2221 mcdeint_filter_deps="avcodec gpl"
2222 movie_filter_deps="avcodec avformat"
2223 mp_filter_deps="gpl avcodec swscale inline_asm"
2224 mpdecimate_filter_deps="gpl avcodec"
2225 mptestsrc_filter_deps="gpl"
2226 negate_filter_deps="lut_filter"
2227 noise_filter_deps="gpl"
2228 perspective_filter_deps="gpl"
2229 resample_filter_deps="avresample"
2230 ocv_filter_deps="libopencv"
2231 owdenoise_filter_deps="gpl"
2232 pan_filter_deps="swresample"
2233 phase_filter_deps="gpl"
2234 pp_filter_deps="gpl postproc"
2235 pullup_filter_deps="gpl"
2236 removelogo_filter_deps="avcodec avformat swscale"
2237 sab_filter_deps="gpl swscale"
2238 scale_filter_deps="swscale"
2239 smartblur_filter_deps="gpl swscale"
2240 showspectrum_filter_deps="avcodec"
2241 showspectrum_filter_select="rdft"
2242 spp_filter_deps="gpl avcodec"
2243 spp_filter_select="fft"
2244 stereo3d_filter_deps="gpl"
2245 subtitles_filter_deps="avformat avcodec libass"
2246 super2xsai_filter_deps="gpl"
2247 tinterlace_filter_deps="gpl"
2248 vidstabdetect_filter_deps="libvidstab"
2249 vidstabtransform_filter_deps="libvidstab"
2250 yadif_filter_deps="gpl"
2251 pixfmts_super2xsai_test_deps="super2xsai_filter"
2252 tinterlace_merge_test_deps="tinterlace_filter"
2253 tinterlace_pad_test_deps="tinterlace_filter"
2254 zmq_filter_deps="libzmq"
2255
2256 # libraries
2257 avcodec_deps="avutil"
2258 avdevice_deps="avutil avcodec avformat"
2259 avfilter_deps="avutil"
2260 avformat_deps="avutil avcodec"
2261 avresample_deps="avutil"
2262 postproc_deps="avutil gpl"
2263 swscale_deps="avutil"
2264
2265 # programs
2266 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2267 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2268                null_filter
2269                setpts_filter trim_filter"
2270 ffplay_deps="avcodec avformat swscale swresample sdl"
2271 ffplay_select="rdft crop_filter"
2272 ffprobe_deps="avcodec avformat"
2273 ffserver_deps="avformat fork sarestart"
2274 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2275 ffserver_extralibs='$ldl'
2276
2277 # documentation
2278 podpages_deps="perl"
2279 manpages_deps="perl pod2man"
2280 htmlpages_deps="texi2html"
2281 txtpages_deps="makeinfo"
2282 doc_deps_any="manpages htmlpages podpages txtpages"
2283
2284 # default parameters
2285
2286 logfile="config.log"
2287
2288 # installation paths
2289 prefix_default="/usr/local"
2290 bindir_default='${prefix}/bin'
2291 datadir_default='${prefix}/share/ffmpeg'
2292 docdir_default='${prefix}/share/doc/ffmpeg'
2293 incdir_default='${prefix}/include'
2294 libdir_default='${prefix}/lib'
2295 mandir_default='${prefix}/share/man'
2296 shlibdir_default="$libdir_default"
2297
2298 # toolchain
2299 ar_default="ar"
2300 cc_default="gcc"
2301 cxx_default="g++"
2302 host_cc_default="gcc"
2303 cp_f="cp -f"
2304 install="install"
2305 ln_s="ln -s -f"
2306 nm_default="nm -g"
2307 objformat="elf"
2308 pkg_config_default=pkg-config
2309 ranlib="ranlib"
2310 strip_default="strip"
2311 yasmexe_default="yasm"
2312
2313 nogas=":"
2314
2315 # machine
2316 arch_default=$(uname -m)
2317 cpu="generic"
2318
2319 # OS
2320 target_os_default=$(tolower $(uname -s))
2321 host_os=$target_os_default
2322
2323 # configurable options
2324 enable $PROGRAM_LIST
2325 enable $DOCUMENT_LIST
2326 enable $(filter_out avresample $LIBRARY_LIST)
2327 enable stripping
2328
2329 enable asm
2330 enable debug
2331 enable doc
2332 enable optimizations
2333 enable runtime_cpudetect
2334 enable safe_bitstream_reader
2335 enable static
2336 enable swscale_alpha
2337
2338 # Enable hwaccels by default.
2339 enable dxva2 vaapi vdpau
2340
2341 # build settings
2342 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2343 LIBPREF="lib"
2344 LIBSUF=".a"
2345 FULLNAME='$(NAME)$(BUILDSUF)'
2346 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2347 SLIBPREF="lib"
2348 SLIBSUF=".so"
2349 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2350 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2351 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2352 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2353 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2354 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2355
2356 asflags_filter=echo
2357 cflags_filter=echo
2358 ldflags_filter=echo
2359
2360 AS_C='-c'
2361 AS_O='-o $@'
2362 CC_C='-c'
2363 CC_E='-E -o $@'
2364 CC_O='-o $@'
2365 CXX_C='-c'
2366 CXX_O='-o $@'
2367 LD_O='-o $@'
2368 LD_LIB='-l%'
2369 LD_PATH='-L'
2370 HOSTCC_C='-c'
2371 HOSTCC_O='-o $@'
2372 HOSTLD_O='-o $@'
2373
2374 host_cflags='-O3 -g'
2375 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2376 host_libs='-lm'
2377 host_cflags_filter=echo
2378 host_ldflags_filter=echo
2379
2380 target_path='$(CURDIR)'
2381
2382 # since the object filename is not given with the -MM flag, the compiler
2383 # is only able to print the basename, and we must add the path ourselves
2384 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2385 DEPFLAGS='-MM'
2386
2387 # find source path
2388 if test -f configure; then
2389     source_path=.
2390 else
2391     source_path=$(cd $(dirname "$0"); pwd)
2392     echo "$source_path" | grep -q '[[:blank:]]' &&
2393         die "Out of tree builds are impossible with whitespace in source path."
2394     test -e "$source_path/config.h" &&
2395         die "Out of tree builds are impossible with config.h in source dir."
2396 fi
2397
2398 for v in "$@"; do
2399     r=${v#*=}
2400     l=${v%"$r"}
2401     r=$(sh_quote "$r")
2402     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2403 done
2404
2405 find_things(){
2406     thing=$1
2407     pattern=$2
2408     file=$source_path/$3
2409     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2410 }
2411
2412 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2413 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2414 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2415 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2416 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2417 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2418 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2419 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2420 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2421 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2422 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2423
2424 ALL_COMPONENTS="
2425     $BSF_LIST
2426     $DECODER_LIST
2427     $DEMUXER_LIST
2428     $ENCODER_LIST
2429     $FILTER_LIST
2430     $HWACCEL_LIST
2431     $INDEV_LIST
2432     $MUXER_LIST
2433     $OUTDEV_LIST
2434     $PARSER_LIST
2435     $PROTOCOL_LIST
2436 "
2437
2438 for n in $COMPONENT_LIST; do
2439     v=$(toupper ${n%s})_LIST
2440     eval enable \$$v
2441     eval ${n}_if_any="\$$v"
2442 done
2443
2444 enable $ARCH_EXT_LIST
2445
2446 die_unknown(){
2447     echo "Unknown option \"$1\"."
2448     echo "See $0 --help for available options."
2449     exit 1
2450 }
2451
2452 print_3_columns() {
2453     cat | tr ' ' '\n' | sort | pr -r -3 -t
2454 }
2455
2456 show_list() {
2457     suffix=_$1
2458     shift
2459     echo $* | sed s/$suffix//g | print_3_columns
2460     exit 0
2461 }
2462
2463 rand_list(){
2464     IFS=', '
2465     set -- $*
2466     unset IFS
2467     for thing; do
2468         comp=${thing%:*}
2469         prob=${thing#$comp}
2470         prob=${prob#:}
2471         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2472         echo "prob ${prob:-0.5}"
2473         printf '%s\n' $comp
2474     done
2475 }
2476
2477 do_random(){
2478     action=$1
2479     shift
2480     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2481     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2482 }
2483
2484 for opt do
2485     optval="${opt#*=}"
2486     case "$opt" in
2487         --extra-ldflags=*)
2488             add_ldflags $optval
2489         ;;
2490         --extra-libs=*)
2491             add_extralibs $optval
2492         ;;
2493         --disable-devices)
2494             disable $INDEV_LIST $OUTDEV_LIST
2495         ;;
2496         --enable-debug=*)
2497             debuglevel="$optval"
2498         ;;
2499         --disable-programs)
2500             disable $PROGRAM_LIST
2501         ;;
2502         --disable-everything)
2503             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2504         ;;
2505         --disable-all)
2506             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2507             disable $LIBRARY_LIST $PROGRAM_LIST doc
2508         ;;
2509         --enable-random|--disable-random)
2510             action=${opt%%-random}
2511             do_random ${action#--} $COMPONENT_LIST
2512         ;;
2513         --enable-random=*|--disable-random=*)
2514             action=${opt%%-random=*}
2515             do_random ${action#--} $optval
2516         ;;
2517         --enable-*=*|--disable-*=*)
2518             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2519             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2520             eval list=\$$(toupper $thing)_LIST
2521             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2522             list=$(filter "$name" $list)
2523             [ "$list" = "" ] && warn "Option $opt did not match anything"
2524             $action $list
2525         ;;
2526         --enable-?*|--disable-?*)
2527             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2528             if is_in $option $COMPONENT_LIST; then
2529                 test $action = disable && action=unset
2530                 eval $action \$$(toupper ${option%s})_LIST
2531             elif is_in $option $CMDLINE_SELECT; then
2532                 $action $option
2533             else
2534                 die_unknown $opt
2535             fi
2536         ;;
2537         --list-*)
2538             NAME="${opt#--list-}"
2539             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2540             NAME=${NAME%s}
2541             eval show_list $NAME \$$(toupper $NAME)_LIST
2542         ;;
2543         --help|-h) show_help
2544         ;;
2545         --fatal-warnings) enable fatal_warnings
2546         ;;
2547         *)
2548             optname="${opt%%=*}"
2549             optname="${optname#--}"
2550             optname=$(echo "$optname" | sed 's/-/_/g')
2551             if is_in $optname $CMDLINE_SET; then
2552                 eval $optname='$optval'
2553             elif is_in $optname $CMDLINE_APPEND; then
2554                 append $optname "$optval"
2555             else
2556                 die_unknown $opt
2557             fi
2558         ;;
2559     esac
2560 done
2561
2562 disabled logging && logfile=/dev/null
2563
2564 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2565 set >> $logfile
2566
2567 test -n "$cross_prefix" && enable cross_compile
2568
2569 if enabled cross_compile; then
2570     test -n "$arch" && test -n "$target_os" ||
2571         die "Must specify target arch and OS when cross-compiling"
2572 fi
2573
2574 ar_default="${cross_prefix}${ar_default}"
2575 cc_default="${cross_prefix}${cc_default}"
2576 cxx_default="${cross_prefix}${cxx_default}"
2577 nm_default="${cross_prefix}${nm_default}"
2578 pkg_config_default="${cross_prefix}${pkg_config_default}"
2579 ranlib="${cross_prefix}${ranlib}"
2580 strip_default="${cross_prefix}${strip_default}"
2581
2582 sysinclude_default="${sysroot}/usr/include"
2583
2584 test -n "$valgrind" && toolchain="valgrind-memcheck"
2585
2586 case "$toolchain" in
2587     clang-asan)
2588         cc_default="clang"
2589         add_cflags  -fsanitize=address
2590         add_ldflags -fsanitize=address
2591     ;;
2592     clang-tsan)
2593         cc_default="clang"
2594         add_cflags  -fsanitize=thread -pie
2595         add_ldflags -fsanitize=thread -pie
2596     ;;
2597     gcc-asan)
2598         cc_default="gcc"
2599         add_cflags  -fsanitize=address
2600         add_ldflags -fsanitize=address
2601     ;;
2602     gcc-tsan)
2603         cc_default="gcc"
2604         add_cflags  -fsanitize=thread -pie -fPIC
2605         add_ldflags -fsanitize=thread -pie -fPIC
2606     ;;
2607     valgrind-massif)
2608         target_exec_default=${valgrind:-"valgrind"}
2609         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"
2610     ;;
2611     valgrind-memcheck)
2612         target_exec_default=${valgrind:-"valgrind"}
2613         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2614     ;;
2615     msvc)
2616         cc_default="c99wrap cl"
2617         ld_default="c99wrap link"
2618         nm_default="dumpbin -symbols"
2619         ar_default="lib"
2620         target_os_default="win32"
2621     ;;
2622     icl)
2623         cc_default="c99wrap -noconv icl"
2624         ld_default="c99wrap xilink"
2625         nm_default="dumpbin -symbols"
2626         ar_default="xilib"
2627         target_os_default="win32"
2628     ;;
2629     gcov)
2630         add_cflags  -fprofile-arcs -ftest-coverage
2631         add_ldflags -fprofile-arcs -ftest-coverage
2632     ;;
2633     ?*)
2634         die "Unknown toolchain $toolchain"
2635     ;;
2636 esac
2637
2638 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2639 enabled cross_compile || host_cc_default=$cc
2640 set_default host_cc
2641
2642 if ! $pkg_config --version >/dev/null 2>&1; then
2643     warn "$pkg_config not found, library detection may fail."
2644     pkg_config=false
2645 fi
2646
2647 exesuf() {
2648     case $1 in
2649         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2650     esac
2651 }
2652
2653 EXESUF=$(exesuf $target_os)
2654 HOSTEXESUF=$(exesuf $host_os)
2655
2656 # set temporary file name
2657 : ${TMPDIR:=$TEMPDIR}
2658 : ${TMPDIR:=$TMP}
2659 : ${TMPDIR:=/tmp}
2660
2661 if [ -n "$tempprefix" ] ; then
2662     mktemp(){
2663         echo $tempprefix.${HOSTNAME}.${UID}
2664     }
2665 elif ! check_cmd mktemp -u XXXXXX; then
2666     # simple replacement for missing mktemp
2667     # NOT SAFE FOR GENERAL USE
2668     mktemp(){
2669         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2670     }
2671 fi
2672
2673 tmpfile(){
2674     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2675         (set -C; exec > $tmp) 2>/dev/null ||
2676         die "Unable to create temporary file in $TMPDIR."
2677     append TMPFILES $tmp
2678     eval $1=$tmp
2679 }
2680
2681 trap 'rm -f -- $TMPFILES' EXIT
2682
2683 tmpfile TMPASM .asm
2684 tmpfile TMPC   .c
2685 tmpfile TMPCPP .cpp
2686 tmpfile TMPE   $EXESUF
2687 tmpfile TMPH   .h
2688 tmpfile TMPO   .o
2689 tmpfile TMPS   .S
2690 tmpfile TMPSH  .sh
2691 tmpfile TMPV   .ver
2692
2693 unset -f mktemp
2694
2695 chmod +x $TMPE
2696
2697 # make sure we can execute files in $TMPDIR
2698 cat > $TMPSH 2>> $logfile <<EOF
2699 #! /bin/sh
2700 EOF
2701 chmod +x $TMPSH >> $logfile 2>&1
2702 if ! $TMPSH >> $logfile 2>&1; then
2703     cat <<EOF
2704 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2705 variable to another directory and make sure that it is not mounted noexec.
2706 EOF
2707     die "Sanity test failed."
2708 fi
2709
2710 ccc_flags(){
2711     for flag; do
2712         case $flag in
2713             -std=c99)           echo -c99                       ;;
2714             -mcpu=*)            echo -arch ${flag#*=}           ;;
2715             -mieee)             echo -ieee                      ;;
2716             -O*|-fast)          echo $flag                      ;;
2717             -fno-math-errno)    echo -assume nomath_errno       ;;
2718             -g)                 echo -g3                        ;;
2719             -Wall)              echo -msg_enable level2         ;;
2720             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2721             -Wl,*)              echo $flag                      ;;
2722             -f*|-W*)                                            ;;
2723             *)                  echo $flag                      ;;
2724         esac
2725    done
2726 }
2727
2728 cparser_flags(){
2729     for flag; do
2730         case $flag in
2731             -Wno-switch)             echo -Wno-switch-enum ;;
2732             -Wno-format-zero-length) ;;
2733             -Wdisabled-optimization) ;;
2734             -Wno-pointer-sign)       echo -Wno-other ;;
2735             *)                       echo $flag ;;
2736         esac
2737     done
2738 }
2739
2740 msvc_common_flags(){
2741     for flag; do
2742         case $flag in
2743             # In addition to specifying certain flags under the compiler
2744             # specific filters, they must be specified here as well or else the
2745             # generic catch all at the bottom will print the original flag.
2746             -Wall)                ;;
2747             -std=c99)             ;;
2748             # Common flags
2749             -fomit-frame-pointer) ;;
2750             -g)                   echo -Z7 ;;
2751             -fno-math-errno)      ;;
2752             -fno-common)          ;;
2753             -fno-signed-zeros)    ;;
2754             -fPIC)                ;;
2755             -mthumb)              ;;
2756             -march=*)             ;;
2757             -lz)                  echo zlib.lib ;;
2758             -lavifil32)           echo vfw32.lib ;;
2759             -lavicap32)           echo vfw32.lib user32.lib ;;
2760             -l*)                  echo ${flag#-l}.lib ;;
2761             *)                    echo $flag ;;
2762         esac
2763     done
2764 }
2765
2766 msvc_flags(){
2767     msvc_common_flags "$@"
2768     for flag; do
2769         case $flag in
2770             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2771                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2772                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2773                                        -wd4554 \
2774                                        -wd4273 ;;
2775         esac
2776     done
2777 }
2778
2779 icl_flags(){
2780     msvc_common_flags "$@"
2781     for flag; do
2782         case $flag in
2783             # Despite what Intel's documentation says -Wall, which is supported
2784             # on Windows, does enable remarks so disable them here.
2785             -Wall)                echo $flag -Qdiag-disable:remark ;;
2786             -std=c99)             echo -Qstd=c99 ;;
2787         esac
2788     done
2789 }
2790
2791 pgi_flags(){
2792     for flag; do
2793         case $flag in
2794             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2795             -fomit-frame-pointer) echo -Mnoframe ;;
2796             -g)                   echo -gopt ;;
2797             *)                    echo $flag ;;
2798         esac
2799     done
2800 }
2801
2802 suncc_flags(){
2803     for flag; do
2804         case $flag in
2805             -march=*|-mcpu=*)
2806                 case "${flag#*=}" in
2807                     native)                   echo -xtarget=native       ;;
2808                     v9|niagara)               echo -xarch=sparc          ;;
2809                     ultrasparc)               echo -xarch=sparcvis       ;;
2810                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2811                     i586|pentium)             echo -xchip=pentium        ;;
2812                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2813                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2814                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2815                     pentium4*)          echo -xtarget=pentium4           ;;
2816                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2817                     *-sse3)             echo -xarch=sse3                 ;;
2818                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2819                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2820                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2821                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
2822                     bdver*)                    echo -xarch=avx           ;;
2823                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2824                     k8|opteron|athlon64|athlon-fx)
2825                                                echo -xarch=sse2a         ;;
2826                     athlon*)                   echo -xarch=pentium_proa  ;;
2827                 esac
2828                 ;;
2829             -std=c99)             echo -xc99              ;;
2830             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2831             -fPIC)                echo -KPIC -xcode=pic32 ;;
2832             -W*,*)                echo $flag              ;;
2833             -f*-*|-W*|-mimpure-text)                      ;;
2834             -shared)              echo -G                 ;;
2835             *)                    echo $flag              ;;
2836         esac
2837     done
2838 }
2839
2840 tms470_flags(){
2841     for flag; do
2842         case $flag in
2843             -march=*|-mcpu=*)
2844                 case "${flag#*=}" in
2845                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2846                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2847                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2848                     armv6*|arm11*)          echo -mv=6   ;;
2849                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2850                                             echo -mv=5e  ;;
2851                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2852                 esac
2853                 ;;
2854             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2855             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2856             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2857             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2858             -msoft-float)   echo --float_support=vfplib       ;;
2859             -O[0-3]|-mf=*)  echo $flag                        ;;
2860             -g)             echo -g -mn                       ;;
2861             -pds=*)         echo $flag                        ;;
2862             -D*|-I*)        echo $flag                        ;;
2863             --gcc|--abi=*)  echo $flag                        ;;
2864             -me)            echo $flag                        ;;
2865         esac
2866     done
2867 }
2868
2869 probe_cc(){
2870     pfx=$1
2871     _cc=$2
2872
2873     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2874     unset _ld_o _ldflags _ld_lib _ld_path
2875     unset _depflags _DEPCMD _DEPFLAGS
2876     _flags_filter=echo
2877
2878     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2879         _type=llvm_gcc
2880         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2881         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2882         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2883         _cflags_speed='-O3'
2884         _cflags_size='-Os'
2885     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2886         _type=gcc
2887         gcc_version=$($_cc --version | head -n1)
2888         gcc_basever=$($_cc -dumpversion)
2889         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2890         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2891         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2892         if ! $_cc -dumpversion | grep -q '^2\.'; then
2893             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2894         fi
2895         _cflags_speed='-O3'
2896         _cflags_size='-Os'
2897     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2898         _type=icc
2899         _ident=$($_cc --version | head -n1)
2900         _depflags='-MMD'
2901         _cflags_speed='-O3'
2902         _cflags_size='-Os'
2903         _cflags_noopt='-O1'
2904     elif $_cc -v 2>&1 | grep -q xlc; then
2905         _type=xlc
2906         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2907         _cflags_speed='-O5'
2908         _cflags_size='-O5 -qcompact'
2909     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2910         _type=ccc
2911         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2912         _DEPFLAGS='-M'
2913         _cflags_speed='-fast'
2914         _cflags_size='-O1'
2915         _flags_filter=ccc_flags
2916     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2917         test -d "$sysroot" || die "No valid sysroot specified."
2918         _type=armcc
2919         _ident=$($_cc --vsn | head -n1)
2920         armcc_conf="$PWD/armcc.conf"
2921         $_cc --arm_linux_configure                 \
2922              --arm_linux_config_file="$armcc_conf" \
2923              --configure_sysroot="$sysroot"        \
2924              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2925              die "Error creating armcc configuration file."
2926         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2927         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2928         as_default="${cross_prefix}gcc"
2929         _depflags='-MMD'
2930         _cflags_speed='-O3'
2931         _cflags_size='-Os'
2932     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2933         _type=tms470
2934         _ident=$($_cc -version | head -n1 | tr -s ' ')
2935         _flags='--gcc --abi=eabi -me'
2936         _cc_e='-ppl -fe=$@'
2937         _cc_o='-fe=$@'
2938         _depflags='-ppa -ppd=$(@:.o=.d)'
2939         _cflags_speed='-O3 -mf=5'
2940         _cflags_size='-O3 -mf=2'
2941         _flags_filter=tms470_flags
2942     elif $_cc -v 2>&1 | grep -q clang; then
2943         _type=clang
2944         _ident=$($_cc --version | head -n1)
2945         _depflags='-MMD'
2946         _cflags_speed='-O3'
2947         _cflags_size='-Os'
2948     elif $_cc -V 2>&1 | grep -q Sun; then
2949         _type=suncc
2950         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2951         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2952         _DEPFLAGS='-xM1 -xc99'
2953         _ldflags='-std=c99'
2954         _cflags_speed='-O5'
2955         _cflags_size='-O5 -xspace'
2956         _flags_filter=suncc_flags
2957     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2958         _type=pathscale
2959         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2960         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2961         _cflags_speed='-O2'
2962         _cflags_size='-Os'
2963         _flags_filter='filter_out -Wdisabled-optimization'
2964     elif $_cc -v 2>&1 | grep -q Open64; then
2965         _type=open64
2966         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2967         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2968         _cflags_speed='-O2'
2969         _cflags_size='-Os'
2970         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2971     elif $_cc -V 2>&1 | grep -q Portland; then
2972         _type=pgi
2973         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2974         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2975         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2976         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2977         _cflags_noopt="-O"
2978         _flags_filter=pgi_flags
2979     elif $_cc 2>&1 | grep -q Microsoft; then
2980         _type=msvc
2981         _ident=$($cc 2>&1 | head -n1)
2982         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2983         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2984         _cflags_speed="-O2"
2985         _cflags_size="-O1"
2986         # Nonstandard output options, to avoid msys path conversion issues.
2987         # Relies on wrapper to remap it.
2988         if $_cc 2>&1 | grep -q Linker; then
2989             _ld_o='-out $@'
2990         else
2991             _ld_o='-Fe$@'
2992         fi
2993         _cc_o='-Fo $@'
2994         _cc_e='-P -Fi $@'
2995         _flags_filter=msvc_flags
2996         _ld_lib='lib%.a'
2997         _ld_path='-libpath:'
2998         _flags='-nologo'
2999         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3000         if [ $pfx = hostcc ]; then
3001             append _cflags -Dsnprintf=_snprintf
3002         fi
3003         disable stripping
3004     elif $_cc 2>&1 | grep -q Intel; then
3005         _type=icl
3006         _ident=$($cc 2>&1 | head -n1)
3007         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3008         # Not only is O3 broken on 13.x+ but it is slower on all previous
3009         # versions (tested) as well.
3010         _cflags_speed="-O2"
3011         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3012         # Nonstandard output options, to avoid msys path conversion issues.
3013         # Relies on wrapper to remap it.
3014         if $_cc 2>&1 | grep -q Linker; then
3015             _ld_o='-out $@'
3016         else
3017             _ld_o='-Fe$@'
3018         fi
3019         _cc_o='-Fo $@'
3020         _cc_e='-P'
3021         _flags_filter=icl_flags
3022         _ld_lib='lib%.a'
3023         _ld_path='-libpath:'
3024         # -Qdiag-error to make icl error when seeing certain unknown arguments
3025         _flags='-nologo -Qdiag-error:4044,10157'
3026         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3027         # with MSVC which enables it by default.
3028         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
3029         if [ $pfx = hostcc ]; then
3030             append _cflags -Dsnprintf=_snprintf
3031         fi
3032     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3033         _type=cparser
3034         _ident=$($_cc --version | head -n1)
3035         _depflags='-MMD'
3036         _cflags_speed='-O4'
3037         _cflags_size='-O2'
3038         _flags_filter=cparser_flags
3039     fi
3040
3041     eval ${pfx}_type=\$_type
3042     eval ${pfx}_ident=\$_ident
3043 }
3044
3045 set_ccvars(){
3046     eval ${1}_C=\${_cc_c-\${${1}_C}}
3047     eval ${1}_E=\${_cc_e-\${${1}_E}}
3048     eval ${1}_O=\${_cc_o-\${${1}_O}}
3049
3050     if [ -n "$_depflags" ]; then
3051         eval ${1}_DEPFLAGS=\$_depflags
3052     else
3053         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3054         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3055         eval DEP${1}FLAGS=\$_flags
3056     fi
3057 }
3058
3059 probe_cc cc "$cc"
3060 cflags_filter=$_flags_filter
3061 cflags_speed=$_cflags_speed
3062 cflags_size=$_cflags_size
3063 cflags_noopt=$_cflags_noopt
3064 add_cflags $_flags $_cflags
3065 cc_ldflags=$_ldflags
3066 set_ccvars CC
3067
3068 probe_cc hostcc "$host_cc"
3069 host_cflags_filter=$_flags_filter
3070 add_host_cflags  $_flags $_cflags
3071 set_ccvars HOSTCC
3072
3073 test -n "$cc_type" && enable $cc_type ||
3074     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3075
3076 : ${as_default:=$cc}
3077 : ${dep_cc_default:=$cc}
3078 : ${ld_default:=$cc}
3079 : ${host_ld_default:=$host_cc}
3080 set_default ar as dep_cc ld host_ld
3081
3082 probe_cc as "$as"
3083 asflags_filter=$_flags_filter
3084 add_asflags $_flags $_cflags
3085 set_ccvars AS
3086
3087 probe_cc ld "$ld"
3088 ldflags_filter=$_flags_filter
3089 add_ldflags $_flags $_ldflags
3090 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3091 LD_O=${_ld_o-$LD_O}
3092 LD_LIB=${_ld_lib-$LD_LIB}
3093 LD_PATH=${_ld_path-$LD_PATH}
3094
3095 probe_cc hostld "$host_ld"
3096 host_ldflags_filter=$_flags_filter
3097 add_host_ldflags $_flags $_ldflags
3098 HOSTLD_O=${_ld_o-$HOSTLD_O}
3099
3100 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3101     probe_cc depcc "$dep_cc"
3102     CCDEP=${_DEPCMD:-$DEPCMD}
3103     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3104     DEPCCFLAGS=$_flags
3105 fi
3106
3107 if $ar 2>&1 | grep -q Microsoft; then
3108     arflags="-nologo"
3109     ar_o='-out:$@'
3110 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3111     arflags="rq"
3112     ar_o='$@'
3113 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3114     arflags='-Xany -r -c'
3115     ar_o='$@'
3116 else
3117     arflags="rc"
3118     ar_o='$@'
3119 fi
3120
3121 add_cflags $extra_cflags
3122 add_cxxflags $extra_cxxflags
3123 add_asflags $extra_cflags
3124
3125 if test -n "$sysroot"; then
3126     case "$cc_type" in
3127         gcc|llvm_gcc|clang)
3128             add_cppflags --sysroot="$sysroot"
3129             add_ldflags --sysroot="$sysroot"
3130         ;;
3131         tms470)
3132             add_cppflags -I"$sysinclude"
3133             add_ldflags  --sysroot="$sysroot"
3134         ;;
3135     esac
3136 fi
3137
3138 if test "$cpu" = host; then
3139     enabled cross_compile &&
3140         die "--cpu=host makes no sense when cross-compiling."
3141
3142     case "$cc_type" in
3143         gcc|llvm_gcc)
3144             check_native(){
3145                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3146                 sed -n "/cc1.*$1=/{
3147                             s/.*$1=\\([^ ]*\\).*/\\1/
3148                             p
3149                             q
3150                         }" $TMPE
3151             }
3152             cpu=$(check_native -march || check_native -mcpu)
3153         ;;
3154     esac
3155
3156     test "${cpu:-host}" = host &&
3157         die "--cpu=host not supported with compiler $cc"
3158 fi
3159
3160 # Deal with common $arch aliases
3161 case "$arch" in
3162     aarch64|arm64)
3163         arch="aarch64"
3164     ;;
3165     arm*|iPad*|iPhone*)
3166         arch="arm"
3167     ;;
3168     mips*|IP*)
3169         arch="mips"
3170     ;;
3171     parisc*|hppa*)
3172         arch="parisc"
3173     ;;
3174     "Power Macintosh"|ppc*|powerpc*)
3175         arch="ppc"
3176     ;;
3177     s390|s390x)
3178         arch="s390"
3179     ;;
3180     sh4|sh)
3181         arch="sh4"
3182     ;;
3183     sun4u|sparc*)
3184         arch="sparc"
3185     ;;
3186     tilegx|tile-gx)
3187         arch="tilegx"
3188     ;;
3189     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3190         arch="x86"
3191     ;;
3192 esac
3193
3194 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3195 enable $arch
3196
3197 # Add processor-specific flags
3198 if enabled aarch64; then
3199
3200     case $cpu in
3201         armv*)
3202             cpuflags="-march=$cpu"
3203         ;;
3204         *)
3205             cpuflags="-mcpu=$cpu"
3206         ;;
3207     esac
3208
3209 elif enabled alpha; then
3210
3211     cpuflags="-mcpu=$cpu"
3212
3213 elif enabled arm; then
3214
3215     check_arm_arch() {
3216         check_cpp_condition stddef.h \
3217             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3218             $cpuflags
3219     }
3220
3221     probe_arm_arch() {
3222         if   check_arm_arch 4;        then echo armv4;
3223         elif check_arm_arch 4T;       then echo armv4t;
3224         elif check_arm_arch 5;        then echo armv5;
3225         elif check_arm_arch 5E;       then echo armv5e;
3226         elif check_arm_arch 5T;       then echo armv5t;
3227         elif check_arm_arch 5TE;      then echo armv5te;
3228         elif check_arm_arch 5TEJ;     then echo armv5te;
3229         elif check_arm_arch 6;        then echo armv6;
3230         elif check_arm_arch 6J;       then echo armv6j;
3231         elif check_arm_arch 6K;       then echo armv6k;
3232         elif check_arm_arch 6Z;       then echo armv6z;
3233         elif check_arm_arch 6ZK;      then echo armv6zk;
3234         elif check_arm_arch 6T2;      then echo armv6t2;
3235         elif check_arm_arch 7;        then echo armv7;
3236         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3237         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3238         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3239         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3240         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3241         fi
3242     }
3243
3244     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3245
3246     case $cpu in
3247         armv*)
3248             cpuflags="-march=$cpu"
3249             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3250         ;;
3251         *)
3252             cpuflags="-mcpu=$cpu"
3253             case $cpu in
3254                 cortex-a*)                               subarch=armv7a  ;;
3255                 cortex-r*)                               subarch=armv7r  ;;
3256                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3257                 arm11*)                                  subarch=armv6   ;;
3258                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3259                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3260                 *)                             subarch=$(probe_arm_arch) ;;
3261             esac
3262         ;;
3263     esac
3264
3265     case "$subarch" in
3266         armv5t*)    enable fast_clz                ;;
3267         armv[6-8]*) enable fast_clz fast_unaligned ;;
3268     esac
3269
3270 elif enabled avr32; then
3271
3272     case $cpu in
3273         ap7[02]0[0-2])
3274             subarch="avr32_ap"
3275             cpuflags="-mpart=$cpu"
3276         ;;
3277         ap)
3278             subarch="avr32_ap"
3279             cpuflags="-march=$cpu"
3280         ;;
3281         uc3[ab]*)
3282             subarch="avr32_uc"
3283             cpuflags="-mcpu=$cpu"
3284         ;;
3285         uc)
3286             subarch="avr32_uc"
3287             cpuflags="-march=$cpu"
3288         ;;
3289     esac
3290
3291 elif enabled bfin; then
3292
3293     cpuflags="-mcpu=$cpu"
3294
3295 elif enabled mips; then
3296
3297     cpuflags="-march=$cpu"
3298
3299     case $cpu in
3300         24kc)
3301             disable mipsfpu
3302             disable mipsdspr1
3303             disable mipsdspr2
3304         ;;
3305         24kf*)
3306             disable mipsdspr1
3307             disable mipsdspr2
3308         ;;
3309         24kec|34kc|1004kc)
3310             disable mipsfpu
3311             disable mipsdspr2
3312         ;;
3313         24kef*|34kf*|1004kf*)
3314             disable mipsdspr2
3315         ;;
3316         74kc)
3317             disable mipsfpu
3318         ;;
3319     esac
3320
3321 elif enabled ppc; then
3322
3323     case $(tolower $cpu) in
3324         601|ppc601|powerpc601)
3325             cpuflags="-mcpu=601"
3326             disable altivec
3327         ;;
3328         603*|ppc603*|powerpc603*)
3329             cpuflags="-mcpu=603"
3330             disable altivec
3331         ;;
3332         604*|ppc604*|powerpc604*)
3333             cpuflags="-mcpu=604"
3334             disable altivec
3335         ;;
3336         g3|75*|ppc75*|powerpc75*)
3337             cpuflags="-mcpu=750"
3338             disable altivec
3339         ;;
3340         g4|745*|ppc745*|powerpc745*)
3341             cpuflags="-mcpu=7450"
3342         ;;
3343         74*|ppc74*|powerpc74*)
3344             cpuflags="-mcpu=7400"
3345         ;;
3346         g5|970|ppc970|powerpc970)
3347             cpuflags="-mcpu=970"
3348         ;;
3349         power[3-7]*)
3350             cpuflags="-mcpu=$cpu"
3351         ;;
3352         cell)
3353             cpuflags="-mcpu=cell"
3354             enable ldbrx
3355         ;;
3356         e500mc)
3357             cpuflags="-mcpu=e500mc"
3358             disable altivec
3359         ;;
3360         e500v2)
3361             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3362             disable altivec
3363         ;;
3364         e500)
3365             cpuflags="-mcpu=8540 -mhard-float"
3366             disable altivec
3367         ;;
3368     esac
3369
3370 elif enabled sparc; then
3371
3372     case $cpu in
3373         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3374             cpuflags="-mcpu=$cpu"
3375             disable vis
3376         ;;
3377         ultrasparc*|niagara[234])
3378             cpuflags="-mcpu=$cpu"
3379         ;;
3380     esac
3381
3382 elif enabled x86; then
3383
3384     case $cpu in
3385         i[345]86|pentium)
3386             cpuflags="-march=$cpu"
3387             disable mmx
3388         ;;
3389         # targets that do NOT support nopl and conditional mov (cmov)
3390         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3391             cpuflags="-march=$cpu"
3392             disable i686
3393         ;;
3394         # targets that do support nopl and conditional mov (cmov)
3395         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3396             cpuflags="-march=$cpu"
3397             enable i686
3398             enable fast_cmov
3399         ;;
3400         # targets that do support conditional mov but on which it's slow
3401         pentium4|pentium4m|prescott|nocona)
3402             cpuflags="-march=$cpu"
3403             enable i686
3404             disable fast_cmov
3405         ;;
3406     esac
3407
3408 fi
3409
3410 if [ "$cpu" != generic ]; then
3411     add_cflags  $cpuflags
3412     add_asflags $cpuflags
3413 fi
3414
3415 # compiler sanity check
3416 check_exec <<EOF
3417 int main(void){ return 0; }
3418 EOF
3419 if test "$?" != 0; then
3420     echo "$cc is unable to create an executable file."
3421     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3422         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3423         echo "Only do this if you know what cross compiling means."
3424     fi
3425     die "C compiler test failed."
3426 fi
3427
3428 add_cppflags -D_ISOC99_SOURCE
3429 add_cxxflags -D__STDC_CONSTANT_MACROS
3430 check_cflags -std=c99
3431 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3432 #include <stdlib.h>
3433 EOF
3434 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3435 #include <stdlib.h>
3436 EOF
3437
3438 check_host_cflags -std=c99
3439 check_host_cflags -Wall
3440
3441 check_64bit(){
3442     arch32=$1
3443     arch64=$2
3444     expr=$3
3445     check_code cc "" "int test[2*($expr) - 1]" &&
3446         subarch=$arch64 || subarch=$arch32
3447 }
3448
3449 case "$arch" in
3450     aarch64|alpha|ia64)
3451         spic=$shared
3452     ;;
3453     mips)
3454         check_64bit mips mips64 '_MIPS_SIM > 1'
3455         spic=$shared
3456     ;;
3457     parisc)
3458         check_64bit parisc parisc64 'sizeof(void *) > 4'
3459         spic=$shared
3460     ;;
3461     ppc)
3462         check_64bit ppc ppc64 'sizeof(void *) > 4'
3463         spic=$shared
3464     ;;
3465     sparc)
3466         check_64bit sparc sparc64 'sizeof(void *) > 4'
3467         spic=$shared
3468     ;;
3469     x86)
3470         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3471         if test "$subarch" = "x86_64"; then
3472             spic=$shared
3473         fi
3474     ;;
3475     ppc)
3476         check_cc <<EOF && subarch="ppc64"
3477         int test[(int)sizeof(char*) - 7];
3478 EOF
3479     ;;
3480 esac
3481
3482 enable $subarch
3483 enabled spic && enable_weak pic
3484
3485 # OS specific
3486 case $target_os in
3487     aix)
3488         SHFLAGS=-shared
3489         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3490         enabled shared && add_ldflags -Wl,-brtl
3491         ;;
3492     haiku)
3493         prefix_default="/boot/common"
3494         network_extralibs="-lnetwork"
3495         host_libs=
3496         ;;
3497     sunos)
3498         SHFLAGS='-shared -Wl,-h,$$(@F)'
3499         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3500         network_extralibs="-lsocket -lnsl"
3501         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3502         # When using suncc to build, the Solaris linker will mark
3503         # an executable with each instruction set encountered by
3504         # the Solaris assembler.  As our libraries contain their own
3505         # guards for processor-specific code, instead suppress
3506         # generation of the HWCAPS ELF section on Solaris x86 only.
3507         enabled_all suncc x86 &&
3508             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3509             add_ldflags -Wl,-M,mapfile
3510         nm_default='nm -P -g'
3511         ;;
3512     netbsd)
3513         disable symver
3514         oss_indev_extralibs="-lossaudio"
3515         oss_outdev_extralibs="-lossaudio"
3516         enabled gcc || check_ldflags -Wl,-zmuldefs
3517         ;;
3518     openbsd|bitrig)
3519         disable symver
3520         SHFLAGS='-shared'
3521         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3522         SLIB_INSTALL_LINKS=
3523         oss_indev_extralibs="-lossaudio"
3524         oss_outdev_extralibs="-lossaudio"
3525         ;;
3526     dragonfly)
3527         disable symver
3528         ;;
3529     freebsd)
3530         ;;
3531     bsd/os)
3532         add_extralibs -lpoll -lgnugetopt
3533         strip="strip -d"
3534         ;;
3535     darwin)
3536         gas="gas-preprocessor.pl $cc"
3537         enabled ppc && add_asflags -force_cpusubtype_ALL
3538         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3539         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3540         strip="${strip} -x"
3541         add_ldflags -Wl,-dynamic,-search_paths_first
3542         SLIBSUF=".dylib"
3543         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3544         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3545         objformat="macho"
3546         enabled x86_64 && objformat="macho64"
3547         enabled_any pic shared ||
3548             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3549         ;;
3550     mingw32*)
3551         if test $target_os = "mingw32ce"; then
3552             disable network
3553         else
3554             target_os=mingw32
3555         fi
3556         LIBTARGET=i386
3557         if enabled x86_64; then
3558             LIBTARGET="i386:x86-64"
3559         elif enabled arm; then
3560             LIBTARGET=arm-wince
3561         fi
3562         check_ldflags -Wl,--nxcompat
3563         check_ldflags -Wl,--dynamicbase
3564         shlibdir_default="$bindir_default"
3565         SLIBPREF=""
3566         SLIBSUF=".dll"
3567         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3568         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3569         dlltool="${cross_prefix}dlltool"
3570         if check_cmd lib.exe -list; then
3571             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3572             if enabled x86_64; then
3573                 LIBTARGET=x64
3574             fi
3575         elif check_cmd $dlltool --version; then
3576             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3577         fi
3578         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3579         SLIB_INSTALL_LINKS=
3580         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3581         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3582         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3583         objformat="win32"
3584         ranlib=:
3585         enable dos_paths
3586         ;;
3587     win32|win64)
3588         if enabled shared; then
3589             # Link to the import library instead of the normal static library
3590             # for shared libs.
3591             LD_LIB='%.lib'
3592             # Cannot build both shared and static libs with MSVC or icl.
3593             disable static
3594         fi
3595         shlibdir_default="$bindir_default"
3596         SLIBPREF=""
3597         SLIBSUF=".dll"
3598         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3599         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3600         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3601         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3602         SLIB_INSTALL_LINKS=
3603         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3604         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3605         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3606         objformat="win32"
3607         ranlib=:
3608         enable dos_paths
3609         ;;
3610     cygwin*)
3611         target_os=cygwin
3612         shlibdir_default="$bindir_default"
3613         SLIBPREF="cyg"
3614         SLIBSUF=".dll"
3615         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3616         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3617         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3618         SLIB_INSTALL_LINKS=
3619         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3620         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3621         objformat="win32"
3622         enable dos_paths
3623         ;;
3624     *-dos|freedos|opendos)
3625         network_extralibs="-lsocket"
3626         objformat="coff"
3627         enable dos_paths
3628         add_cppflags -U__STRICT_ANSI__
3629         ;;
3630     linux)
3631         enable dv1394
3632         ;;
3633     irix*)
3634         target_os=irix
3635         ranlib="echo ignoring ranlib"
3636         ;;
3637     os/2*)
3638         strip="lxlite -CS"
3639         ln_s="cp -f"
3640         objformat="aout"
3641         add_cppflags -D_GNU_SOURCE
3642         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3643         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3644         LIBSUF="_s.a"
3645         SLIBPREF=""
3646         SLIBSUF=".dll"
3647         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3648         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3649         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3650             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3651             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3652             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3653             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3654             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3655         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3656             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3657         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3658         enable dos_paths
3659         enable_weak os2threads
3660         ;;
3661     gnu/kfreebsd)
3662         add_cppflags -D_BSD_SOURCE
3663         ;;
3664     gnu)
3665         ;;
3666     qnx)
3667         add_cppflags -D_QNX_SOURCE
3668         network_extralibs="-lsocket"
3669         ;;
3670     symbian)
3671         SLIBSUF=".dll"
3672         enable dos_paths
3673         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3674         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3675         add_ldflags -Wl,--target1-abs,--no-undefined \
3676                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3677                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3678         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3679                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3680                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3681         ;;
3682     osf1)
3683         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3684         ;;
3685     minix)
3686         ;;
3687     plan9)
3688         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3689                      -D_REENTRANT_SOURCE        \
3690                      -D_RESEARCH_SOURCE         \
3691                      -DFD_SETSIZE=96            \
3692                      -DHAVE_SOCK_OPTS
3693         add_compat strtod.o strtod=avpriv_strtod
3694         network_extralibs='-lbsd'
3695         exeobjs=compat/plan9/main.o
3696         disable ffserver
3697         cp_f='cp'
3698         ;;
3699     none)
3700         ;;
3701     *)
3702         die "Unknown OS '$target_os'."
3703         ;;
3704 esac
3705
3706 # determine libc flavour
3707
3708 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3709 if check_cpp_condition features.h "defined __UCLIBC__"; then
3710     libc_type=uclibc
3711     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3712 elif check_cpp_condition features.h "defined __GLIBC__"; then
3713     libc_type=glibc
3714     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3715 # MinGW headers can be installed on Cygwin, so check for newlib first.
3716 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3717     libc_type=newlib
3718     add_cppflags -U__STRICT_ANSI__
3719 elif check_header _mingw.h; then
3720     libc_type=mingw
3721     check_cpp_condition _mingw.h \
3722         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3723             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3724         die "ERROR: MinGW runtime version must be >= 3.15."
3725     add_cppflags -U__STRICT_ANSI__
3726     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3727             __MINGW64_VERSION_MAJOR < 3"; then
3728         add_compat msvcrt/snprintf.o
3729         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3730     else
3731         add_cppflags -D__USE_MINGW_ANSI_STDIO=1
3732     fi
3733 elif check_func_headers stdlib.h _get_doserrno; then
3734     libc_type=msvcrt
3735     add_compat strtod.o strtod=avpriv_strtod
3736     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3737                                  _snprintf=avpriv_snprintf  \
3738                                  vsnprintf=avpriv_vsnprintf
3739     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3740     # 0x601 by default unless something else is set by the user.
3741     # This can easily lead to us detecting functions only present
3742     # in such new versions and producing binaries requiring windows 7.0.
3743     # Therefore explicitly set the default to XP unless the user has
3744     # set something else on the command line.
3745     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3746 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3747     libc_type=klibc
3748 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3749     libc_type=bionic
3750     add_compat strtod.o strtod=avpriv_strtod
3751 fi
3752
3753 test -n "$libc_type" && enable $libc_type
3754
3755 # hacks for compiler/libc/os combinations
3756
3757 if enabled_all tms470 glibc; then
3758     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3759     add_cppflags -D__USER_LABEL_PREFIX__=
3760     add_cppflags -D__builtin_memset=memset
3761     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3762     add_cflags   -pds=48    # incompatible redefinition of macro
3763 fi
3764
3765 if enabled_all ccc glibc; then
3766     add_ldflags -Wl,-z,now  # calls to libots crash without this
3767 fi
3768
3769 esc(){
3770     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3771 }
3772
3773 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3774
3775 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3776
3777 set_default $PATHS_LIST
3778 set_default nm
3779
3780 # we need to build at least one lib type
3781 if ! enabled_any static shared; then
3782     cat <<EOF
3783 At least one library type must be built.
3784 Specify --enable-static to build the static libraries or --enable-shared to
3785 build the shared libraries as well. To only build the shared libraries specify
3786 --disable-static in addition to --enable-shared.
3787 EOF
3788     exit 1;
3789 fi
3790
3791 # backward compatibility layer for incompatible_libav/fork_abi
3792 enabled incompatible_fork_abi  && enable incompatible_libav_abi
3793 enabled incompatible_libav_abi && enable incompatible_fork_abi
3794
3795 die_license_disabled() {
3796     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3797 }
3798
3799 die_license_disabled_gpl() {
3800     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3801 }
3802
3803 die_license_disabled gpl frei0r
3804 die_license_disabled gpl libcdio
3805 die_license_disabled gpl libutvideo
3806 die_license_disabled gpl libvidstab
3807 die_license_disabled gpl libx264
3808 die_license_disabled gpl libxavs
3809 die_license_disabled gpl libxvid
3810 die_license_disabled gpl libzvbi
3811 die_license_disabled gpl x11grab
3812
3813 die_license_disabled nonfree libaacplus
3814 die_license_disabled nonfree libfaac
3815 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3816 enabled gpl && die_license_disabled_gpl nonfree openssl
3817
3818 die_license_disabled version3 libopencore_amrnb
3819 die_license_disabled version3 libopencore_amrwb
3820 die_license_disabled version3 libvo_aacenc
3821 die_license_disabled version3 libvo_amrwbenc
3822
3823 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3824
3825 disabled optimizations || check_cflags -fomit-frame-pointer
3826
3827 enable_weak_pic() {
3828     disabled pic && return
3829     enable pic
3830     add_cppflags -DPIC
3831     case "$target_os" in
3832     mingw*|cygwin*)
3833         ;;
3834     *)
3835         add_cflags -fPIC
3836         ;;
3837     esac
3838     add_asflags  -fPIC
3839 }
3840
3841 enabled pic && enable_weak_pic
3842
3843 check_cc <<EOF || die "Symbol mangling check failed."
3844 int ff_extern;
3845 EOF
3846 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3847 extern_prefix=${sym%%ff_extern*}
3848
3849 check_cc <<EOF && enable_weak inline_asm
3850 void foo(void) { __asm__ volatile ("" ::); }
3851 EOF
3852
3853 _restrict=
3854 for restrict_keyword in restrict __restrict__ __restrict; do
3855     check_cc <<EOF && _restrict=$restrict_keyword && break
3856 void foo(char * $restrict_keyword p);
3857 EOF
3858 done
3859
3860 check_cc <<EOF && enable pragma_deprecated
3861 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3862 EOF
3863
3864 check_cc <<EOF && enable attribute_packed
3865 struct { int x; } __attribute__((packed)) x;
3866 EOF
3867
3868 check_cc <<EOF && enable attribute_may_alias
3869 union { int x; } __attribute__((may_alias)) x;
3870 EOF
3871
3872 check_cc <<EOF || die "endian test failed"
3873 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3874 EOF
3875 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3876
3877 check_inline_asm inline_asm_labels '"1:\n"'
3878
3879 if enabled alpha; then
3880
3881     check_cflags -mieee
3882
3883 elif enabled arm; then
3884
3885     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3886 float func(float a, float b){ return a+b; }
3887 EOF
3888
3889     enabled thumb && check_cflags -mthumb || check_cflags -marm
3890     nogas=die
3891
3892     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3893         enable vfp_args
3894     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3895         case "${cross_prefix:-$cc}" in
3896             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3897             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3898 __asm__ (".eabi_attribute 28, 1");
3899 int main(void) { return 0; }
3900 EOF
3901         esac
3902         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3903     fi
3904
3905     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3906     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3907     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3908     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3909     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3910     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3911
3912     [ $target_os = linux ] ||
3913         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3914             $ARCH_EXT_LIST_ARM
3915
3916     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3917     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3918
3919     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3920
3921 elif enabled mips; then
3922
3923     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3924     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3925      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3926     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3927      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3928     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3929      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3930     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3931      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3932
3933 elif enabled parisc; then
3934
3935     if enabled gcc; then
3936         case $($cc -dumpversion) in
3937             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3938         esac
3939     fi
3940
3941 elif enabled ppc; then
3942
3943     enable local_aligned_8 local_aligned_16
3944
3945     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3946     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3947     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3948     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3949
3950     # AltiVec flags: The FSF version of GCC differs from the Apple version
3951     if enabled altivec; then
3952         if ! enabled_any pic ppc64; then
3953             nogas=warn
3954         fi
3955         check_cflags -maltivec -mabi=altivec &&
3956         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3957         check_cflags -faltivec
3958
3959         # check if our compiler supports Motorola AltiVec C API
3960         check_cc <<EOF || disable altivec
3961 $inc_altivec_h
3962 int main(void) {
3963     vector signed int v1 = (vector signed int) { 0 };
3964     vector signed int v2 = (vector signed int) { 1 };
3965     v1 = vec_add(v1, v2);
3966     return 0;
3967 }
3968 EOF
3969
3970         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3971     fi
3972
3973 elif enabled sparc; then
3974
3975     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3976
3977 elif enabled x86; then
3978
3979     check_builtin rdtsc    intrin.h   "__rdtsc()"
3980     check_builtin mm_empty mmintrin.h "_mm_empty()"
3981
3982     enable local_aligned_8 local_aligned_16
3983
3984     # check whether EBP is available on x86
3985     # As 'i' is stored on the stack, this program will crash
3986     # if the base pointer is used to access it because the
3987     # base pointer is cleared in the inline assembly code.
3988     check_exec_crash <<EOF && enable ebp_available
3989 volatile int i=0;
3990 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3991 return i;
3992 EOF
3993
3994     # check whether EBX is available on x86
3995     check_inline_asm ebx_available '""::"b"(0)' &&
3996         check_inline_asm ebx_available '"":::"%ebx"'
3997
3998     # check whether xmm clobbers are supported
3999     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4000
4001     # check whether binutils is new enough to compile SSSE3/MMXEXT
4002     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4003     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4004
4005     if ! disabled_any asm mmx yasm; then
4006         if check_cmd $yasmexe --version; then
4007             enabled x86_64 && yasm_extra="-m amd64"
4008             yasm_debug="-g dwarf2"
4009         elif check_cmd nasm -v; then
4010             yasmexe=nasm
4011             yasm_debug="-g -F dwarf"
4012             enabled x86_64 && test "$objformat" = elf && objformat=elf64
4013         fi
4014
4015         YASMFLAGS="-f $objformat $yasm_extra"
4016         enabled pic               && append YASMFLAGS "-DPIC"
4017         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4018         case "$objformat" in
4019             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4020         esac
4021
4022         check_yasm "movbe ecx, [5]" && enable yasm ||
4023             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4024         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external avresample
4025         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4026         check_yasm "CPU amdnop" && enable cpunop
4027     fi
4028
4029     case "$cpu" in
4030         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4031             disable fast_clz
4032         ;;
4033     esac
4034
4035 fi
4036
4037 if enabled asm; then
4038     as=${gas:=$as}
4039     check_as <<EOF && enable gnu_as || \
4040         $nogas "GNU assembler not found, install gas-preprocessor"
4041 .macro m n
4042 \n: .int 0
4043 .endm
4044 m x
4045 EOF
4046 fi
4047
4048 check_ldflags -Wl,--as-needed
4049
4050 if check_func dlopen; then
4051     ldl=
4052 elif check_func dlopen -ldl; then
4053     ldl=-ldl
4054 fi
4055
4056 if ! disabled network; then
4057     check_type "sys/types.h sys/socket.h" socklen_t
4058     check_type netdb.h "struct addrinfo"
4059     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4060     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4061     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4062     check_type netinet/in.h "struct sockaddr_in6"
4063     check_type poll.h "struct pollfd"
4064     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4065     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4066     check_type netinet/sctp.h "struct sctp_event_subscribe"
4067     check_func getaddrinfo $network_extralibs
4068     check_func getservbyport $network_extralibs
4069     # Prefer arpa/inet.h over winsock2
4070     if check_header arpa/inet.h ; then
4071         check_func closesocket
4072     elif check_header winsock2.h ; then
4073         check_func_headers winsock2.h closesocket -lws2 &&
4074             network_extralibs="-lws2" ||
4075         { check_func_headers winsock2.h closesocket -lws2_32 &&
4076             network_extralibs="-lws2_32"; }
4077         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4078         check_type ws2tcpip.h socklen_t
4079         check_type ws2tcpip.h "struct addrinfo"
4080         check_type ws2tcpip.h "struct group_source_req"
4081         check_type ws2tcpip.h "struct ip_mreq_source"
4082         check_type ws2tcpip.h "struct ipv6_mreq"
4083         check_type winsock2.h "struct pollfd"
4084         check_type ws2tcpip.h "struct sockaddr_in6"
4085         check_type ws2tcpip.h "struct sockaddr_storage"
4086         check_struct winsock2.h "struct sockaddr" sa_len
4087     else
4088         disable network
4089     fi
4090 fi
4091
4092 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4093 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
4094
4095 check_func  access
4096 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4097 check_func  fcntl
4098 check_func  fork
4099 check_func_headers stdlib.h getenv
4100 check_func  gethrtime
4101 check_func  getopt
4102 check_func  getrusage
4103 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4104 check_func  gettimeofday
4105 check_func  inet_aton $network_extralibs
4106 check_func  isatty
4107 check_func  localtime_r
4108 check_func  ${malloc_prefix}memalign            && enable memalign
4109 check_func  mkstemp
4110 check_func  mmap
4111 check_func  mprotect
4112 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4113 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4114 check_func  setrlimit
4115 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4116 check_func  strerror_r
4117 check_func  sched_getaffinity
4118 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4119 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4120 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4121 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4122 check_builtin sarestart signal.h "SA_RESTART"
4123 check_func  sysconf
4124 check_func  sysctl
4125 check_func  usleep
4126 check_func_headers conio.h kbhit
4127 check_func_headers windows.h PeekNamedPipe
4128 check_func_headers io.h setmode
4129 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4130 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4131 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4132 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4133 check_func_headers windows.h GetProcessAffinityMask
4134 check_func_headers windows.h GetProcessTimes
4135 check_func_headers windows.h GetSystemTimeAsFileTime
4136 check_func_headers windows.h MapViewOfFile
4137 check_func_headers windows.h SetConsoleTextAttribute
4138 check_func_headers windows.h Sleep
4139 check_func_headers windows.h VirtualAlloc
4140 check_func_headers glob.h glob
4141 check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4142
4143 check_header cl/cl.h
4144 check_header direct.h
4145 check_header dlfcn.h
4146 check_header dxva.h
4147 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4148 check_header io.h
4149 check_header libcrystalhd/libcrystalhd_if.h
4150 check_header malloc.h
4151 check_header poll.h
4152 check_header sys/mman.h
4153 check_header sys/param.h
4154 check_header sys/resource.h
4155 check_header sys/select.h
4156 check_header sys/time.h
4157 check_header sys/un.h
4158 check_header termios.h
4159 check_header unistd.h
4160 check_header vdpau/vdpau.h
4161 check_header vdpau/vdpau_x11.h
4162 check_header VideoDecodeAcceleration/VDADecoder.h
4163 check_header windows.h
4164 check_header X11/extensions/XvMClib.h
4165 check_header asm/types.h
4166
4167 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4168 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4169
4170 if ! disabled w32threads && ! enabled pthreads; then
4171     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4172 fi
4173
4174 # check for some common methods of building with pthread support
4175 # do this before the optional library checks as some of them require pthreads
4176 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4177     enable pthreads
4178     if check_func pthread_create; then
4179         :
4180     elif check_func pthread_create -pthread; then
4181         add_cflags -pthread
4182         add_extralibs -pthread
4183     elif check_func pthread_create -pthreads; then
4184         add_cflags -pthreads
4185         add_extralibs -pthreads
4186     elif check_func pthread_create -lpthreadGC2; then
4187         add_extralibs -lpthreadGC2
4188     elif ! check_lib pthread.h pthread_create -lpthread; then
4189         disable pthreads
4190     fi
4191 fi
4192
4193 for thread in $THREADS_LIST; do
4194     if enabled $thread; then
4195         test -n "$thread_type" &&
4196             die "ERROR: Only one thread type must be selected." ||
4197             thread_type="$thread"
4198     fi
4199 done
4200
4201 if enabled pthreads; then
4202   check_func pthread_cancel
4203 fi
4204
4205 enabled sync_val_compare_and_swap && enable atomics_gcc
4206 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
4207 enabled MemoryBarrier && enable atomics_win32
4208
4209 check_lib math.h sin -lm && LIBM="-lm"
4210 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4211
4212 atan2f_args=2
4213 ldexpf_args=2
4214 powf_args=2
4215
4216 for func in $MATH_FUNCS; do
4217     eval check_mathfunc $func \${${func}_args:-1}
4218 done
4219
4220 # these are off by default, so fail if requested and not available
4221 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4222                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4223                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4224 enabled fontconfig        && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4225 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4226 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4227 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4228 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4229 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4230 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4231 enabled libbluray         && require libbluray libbluray/bluray.h bd_open -lbluray
4232 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4233                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4234                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4235 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4236 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4237 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4238 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4239 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4240 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
4241 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4242 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4243                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4244                                done || die "ERROR: libgsm not found"; }
4245 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4246 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4247 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4248 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4249 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4250 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4251 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4252 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg ||
4253                                check_lib openjpeg.h opj_version -lopenjpeg ||
4254                                die "ERROR: libopenjpeg not found"; }
4255 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4256 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
4257 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4258 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4259 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4260 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4261 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4262 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4263 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
4264 enabled libstagefright_h264 && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
4265     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
4266     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
4267 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4268 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame &&
4269                              { check_lib twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
4270                                die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
4271 enabled libutvideo        && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
4272 enabled libv4l2           && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
4273 enabled libvidstab        && require_pkg_config vidstab vid.stab/libvidstab.h vsMotionDetectInit
4274 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4275 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4276 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4277 enabled libvpx            && {
4278     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
4279                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
4280     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
4281                                     die "ERROR: libvpx encoder version must be >=0.9.7"; }
4282     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
4283     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
4284 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4285 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
4286                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
4287                                die "ERROR: libx264 must be installed and version must be >= 0.118."; }
4288 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
4289 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4290 enabled libzmq            && require_pkg_config libzmq zmq.h zmq_ctx_new
4291 enabled libzvbi           && require libzvbi libzvbi.h vbi_decoder_new -lzvbi
4292 enabled openal            && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
4293                                check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
4294                                die "ERROR: openal not found"; } &&
4295                              { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
4296                                die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
4297 enabled opencl            && { check_lib2 OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
4298                                check_lib2 CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
4299                                die "ERROR: opencl not found"; } &&
4300                              { ! enabled_any w32threads os2threads ||
4301                                die "opencl currently needs --enable-pthreads or --disable-w32threads"; } &&
4302                              { check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
4303                                check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
4304                                die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
4305 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4306                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4307                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4308                                die "ERROR: openssl not found"; }
4309
4310 if enabled gnutls; then
4311     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
4312     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
4313 fi
4314
4315 # libdc1394 check
4316 if enabled libdc1394; then
4317     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
4318         enable libdc1394_2; } ||
4319     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
4320         enable libdc1394_1; } ||
4321     die "ERROR: No version of libdc1394 found "
4322 fi
4323
4324 SDL_CONFIG="${cross_prefix}sdl-config"
4325 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
4326     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4327     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4328     enable sdl
4329 else
4330   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
4331     sdl_cflags=$("${SDL_CONFIG}" --cflags)
4332     sdl_libs=$("${SDL_CONFIG}" --libs)
4333     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
4334     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
4335     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
4336     enable sdl
4337   fi
4338 fi
4339 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
4340
4341 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
4342 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
4343 perl --version > /dev/null 2>&1 && enable perl || disable perl
4344 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
4345 rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
4346
4347 check_header linux/fb.h
4348 check_header linux/videodev.h
4349 check_header linux/videodev2.h
4350 check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
4351
4352 check_header sys/videoio.h
4353
4354 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
4355 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
4356 # w32api 3.12 had it defined wrong
4357 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
4358
4359 check_type "dshow.h" IBaseFilter
4360
4361 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
4362 { check_header dev/bktr/ioctl_meteor.h &&
4363   check_header dev/bktr/ioctl_bt848.h; } ||
4364 { check_header machine/ioctl_meteor.h &&
4365   check_header machine/ioctl_bt848.h; } ||
4366 { check_header dev/video/meteor/ioctl_meteor.h &&
4367   check_header dev/video/bktr/ioctl_bt848.h; } ||
4368 check_header dev/ic/bt8xx.h
4369
4370 check_header sndio.h
4371 if check_struct sys/soundcard.h audio_buf_info bytes; then
4372     enable_safe sys/soundcard.h
4373 else
4374     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
4375     #include <sys/soundcard.h>
4376     audio_buf_info abc;
4377 EOF
4378 fi
4379 check_header soundcard.h
4380
4381 enabled_any alsa_indev alsa_outdev &&
4382     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4383
4384 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
4385     check_func jack_port_get_latency_range -ljack
4386
4387 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4388
4389 if enabled libcdio; then
4390     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4391     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4392     die "ERROR: libcdio-paranoia not found"
4393 fi
4394
4395 enabled x11grab                                           &&
4396 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
4397 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4398 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
4399
4400 enabled vaapi &&
4401     check_lib va/va.h vaInitialize -lva ||
4402     disable vaapi
4403
4404 enabled vdpau &&
4405     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4406     disable vdpau
4407
4408 # Funny iconv installations are not unusual, so check it after all flags have been set
4409 disabled iconv || check_func_headers iconv.h iconv || check_lib2 iconv.h iconv -liconv || disable iconv
4410
4411 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4412
4413 # add some useful compiler flags if supported
4414 check_cflags -Wdeclaration-after-statement
4415 check_cflags -Wall
4416 check_cflags -Wno-parentheses
4417 check_cflags -Wno-switch
4418 check_cflags -Wno-format-zero-length
4419 check_cflags -Wdisabled-optimization
4420 check_cflags -Wpointer-arith
4421 check_cflags -Wredundant-decls
4422 check_cflags -Wno-pointer-sign
4423 check_cflags -Wwrite-strings
4424 check_cflags -Wtype-limits
4425 check_cflags -Wundef
4426 check_cflags -Wmissing-prototypes
4427 check_cflags -Wno-pointer-to-int-cast
4428 check_cflags -Wstrict-prototypes
4429 enabled extra_warnings && check_cflags -Winline
4430
4431 # add some linker flags
4432 check_ldflags -Wl,--warn-common
4433 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4434 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4435
4436 enabled xmm_clobber_test &&
4437     check_ldflags -Wl,--wrap,avcodec_open2              \
4438                   -Wl,--wrap,avcodec_decode_audio4      \
4439                   -Wl,--wrap,avcodec_decode_video2      \
4440                   -Wl,--wrap,avcodec_decode_subtitle2   \
4441                   -Wl,--wrap,avcodec_encode_audio2      \
4442                   -Wl,--wrap,avcodec_encode_video       \
4443                   -Wl,--wrap,avcodec_encode_video2      \
4444                   -Wl,--wrap,avcodec_encode_subtitle    \
4445                   -Wl,--wrap,sws_scale ||
4446     disable xmm_clobber_test
4447
4448 echo "X{};" > $TMPV
4449 if test_ldflags -Wl,--version-script,$TMPV; then
4450     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4451     check_cc <<EOF && enable symver_asm_label
4452 void ff_foo(void) __asm__ ("av_foo@VERSION");
4453 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4454 EOF
4455     check_cc <<EOF && enable symver_gnu_asm
4456 __asm__(".symver ff_foo,av_foo@VERSION");
4457 void ff_foo(void) {}
4458 EOF
4459 fi
4460
4461 if [ -z "$optflags" ]; then
4462     if enabled small; then
4463         optflags=$cflags_size
4464     elif enabled optimizations; then
4465         optflags=$cflags_speed
4466     else
4467         optflags=$cflags_noopt
4468     fi
4469 fi
4470
4471 check_optflags(){
4472     check_cflags "$@"
4473     enabled lto && check_ldflags "$@"
4474 }
4475
4476
4477 if enabled lto; then
4478     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4479     check_cflags  -flto
4480     check_ldflags -flto $cpuflags
4481 fi
4482
4483 check_optflags $optflags
4484 check_optflags -fno-math-errno
4485 check_optflags -fno-signed-zeros
4486
4487 enabled ftrapv && check_cflags -ftrapv
4488
4489 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
4490 int x;
4491 EOF
4492
4493
4494 if enabled icc; then
4495     # Just warnings, no remarks
4496     check_cflags -w1
4497     # -wd: Disable following warnings
4498     # 144, 167, 556: -Wno-pointer-sign
4499     # 188: enumerated type mixed with another type
4500     # 1292: attribute "foo" ignored
4501     # 1419: external declaration in primary source file
4502     # 10006: ignoring unknown option -fno-signed-zeros
4503     # 10148: ignoring unknown option -Wno-parentheses
4504     # 10156: ignoring option '-W'; no argument required
4505     check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156
4506     # 11030: Warning unknown option --as-needed
4507     # 10156: ignoring option '-export'; no argument required
4508     check_ldflags -wd10156,11030
4509     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4510     enable ebp_available
4511     if enabled x86_32; then
4512         icc_version=$($cc -dumpversion)
4513         test ${icc_version%%.*} -ge 11 &&
4514             check_cflags -falign-stack=maintain-16-byte ||
4515             disable aligned_stack
4516     fi
4517 elif enabled ccc; then
4518     # disable some annoying warnings
4519     add_cflags -msg_disable bitnotint
4520     add_cflags -msg_disable mixfuncvoid
4521     add_cflags -msg_disable nonstandcast
4522     add_cflags -msg_disable unsupieee
4523 elif enabled gcc; then
4524     check_optflags -fno-tree-vectorize
4525     check_cflags -Werror=implicit-function-declaration
4526     check_cflags -Werror=missing-prototypes
4527     check_cflags -Werror=return-type
4528     check_cflags -Werror=vla
4529 elif enabled llvm_gcc; then
4530     check_cflags -mllvm -stack-alignment=16
4531 elif enabled clang; then
4532     check_cflags -mllvm -stack-alignment=16
4533     check_cflags -Qunused-arguments
4534     check_cflags -Werror=implicit-function-declaration
4535     check_cflags -Werror=missing-prototypes
4536     check_cflags -Werror=return-type
4537 elif enabled cparser; then
4538     add_cflags -Wno-missing-variable-declarations
4539     add_cflags -Wno-empty-statement
4540 elif enabled armcc; then
4541     # 2523: use of inline assembler is deprecated
4542     add_cflags -W${armcc_opt},--diag_suppress=2523
4543     add_cflags -W${armcc_opt},--diag_suppress=1207
4544     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4545     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4546     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4547     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4548 elif enabled tms470; then
4549     add_cflags -pds=824 -pds=837
4550 elif enabled pathscale; then
4551     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4552 elif enabled_any msvc icl; then
4553     enabled x86_32 && disable aligned_stack
4554     enabled_all x86_32 debug && add_cflags -Oy-
4555     enabled debug && add_ldflags -debug
4556     enable pragma_deprecated
4557     if enabled icl; then
4558         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4559         # (correctly) on icl 13.x.
4560         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4561             add_cflags -Qansi-alias
4562         # icl will pass the inline asm tests but inline asm is currently
4563         # not supported (build will fail)
4564         disabled inline_asm || warn "inline asm disabled due to issues with it in ICL"
4565         disable inline_asm
4566     fi
4567 fi
4568
4569 case $target_os in
4570     osf1)
4571         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4572     ;;
4573     plan9)
4574         add_cppflags -Dmain=plan9_main
4575     ;;
4576 esac
4577
4578 enable frame_thread_encoder
4579 enabled_any $THREADS_LIST      && enable threads
4580 enabled_any $ATOMICS_LIST      && enable atomics_native
4581
4582 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4583
4584 check_deps $CONFIG_LIST       \
4585            $CONFIG_EXTRA      \
4586            $HAVE_LIST         \
4587            $ALL_COMPONENTS    \
4588
4589
4590 if test $target_os = "haiku"; then
4591     disable memalign
4592     disable posix_memalign
4593 fi
4594
4595 ! enabled_any memalign posix_memalign aligned_malloc &&
4596     enabled_any $need_memalign && enable memalign_hack
4597
4598 # add_dep lib dep
4599 # -> enable ${lib}_deps_${dep}
4600 # -> add $dep to ${lib}_deps only once
4601 add_dep() {
4602     lib=$1
4603     dep=$2
4604     enabled "${lib}_deps_${dep}" && return 0
4605     enable  "${lib}_deps_${dep}"
4606     prepend "${lib}_deps" $dep
4607 }
4608
4609 # merge deps lib components
4610 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
4611 merge_deps() {
4612     lib=$1
4613     shift
4614     for comp in $*; do
4615         enabled $comp || continue
4616         eval "dep=\"\$${comp}_deps\""
4617         for d in $dep; do
4618             add_dep $lib $d
4619         done
4620     done
4621 }
4622
4623 merge_deps libavfilter $FILTER_LIST
4624
4625 echo "install prefix            $prefix"
4626 echo "source path               $source_path"
4627 echo "C compiler                $cc"
4628 echo "ARCH                      $arch ($cpu)"
4629 if test "$build_suffix" != ""; then
4630     echo "build suffix              $build_suffix"
4631 fi
4632 if test "$progs_suffix" != ""; then
4633     echo "progs suffix              $progs_suffix"
4634 fi
4635 if test "$extra_version" != ""; then
4636     echo "version string suffix     $extra_version"
4637 fi
4638 echo "big-endian                ${bigendian-no}"
4639 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4640 if enabled x86; then
4641     echo "${yasmexe}                      ${yasm-no}"
4642     echo "MMX enabled               ${mmx-no}"
4643     echo "MMXEXT enabled            ${mmxext-no}"
4644     echo "3DNow! enabled            ${amd3dnow-no}"
4645     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4646     echo "SSE enabled               ${sse-no}"
4647     echo "SSSE3 enabled             ${ssse3-no}"
4648     echo "AVX enabled               ${avx-no}"
4649     echo "FMA4 enabled              ${fma4-no}"
4650     echo "i686 features enabled     ${i686-no}"
4651     echo "CMOV is fast              ${fast_cmov-no}"
4652     echo "EBX available             ${ebx_available-no}"
4653     echo "EBP available             ${ebp_available-no}"
4654 fi
4655 if enabled arm; then
4656     echo "ARMv5TE enabled           ${armv5te-no}"
4657     echo "ARMv6 enabled             ${armv6-no}"
4658     echo "ARMv6T2 enabled           ${armv6t2-no}"
4659     echo "VFP enabled               ${vfp-no}"
4660     echo "NEON enabled              ${neon-no}"
4661     echo "THUMB enabled             ${thumb-no}"
4662 fi
4663 if enabled mips; then
4664     echo "MIPS FPU enabled          ${mipsfpu-no}"
4665     echo "MIPS32R2 enabled          ${mips32r2-no}"
4666     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
4667     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
4668 fi
4669 if enabled ppc; then
4670     echo "AltiVec enabled           ${altivec-no}"
4671     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4672     echo "dcbzl available           ${dcbzl-no}"
4673 fi
4674 if enabled sparc; then
4675     echo "VIS enabled               ${vis-no}"
4676 fi
4677 echo "debug symbols             ${debug-no}"
4678 echo "strip symbols             ${stripping-no}"
4679 echo "optimize for size         ${small-no}"
4680 echo "optimizations             ${optimizations-no}"
4681 echo "static                    ${static-no}"
4682 echo "shared                    ${shared-no}"
4683 echo "postprocessing support    ${postproc-no}"
4684 echo "new filter support        ${avfilter-no}"
4685 echo "network support           ${network-no}"
4686 echo "threading support         ${thread_type-no}"
4687 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4688 echo "SDL support               ${sdl-no}"
4689 echo "opencl enabled            ${opencl-no}"
4690 echo "libzvbi enabled           ${libzvbi-no}"
4691 echo "texi2html enabled         ${texi2html-no}"
4692 echo "perl enabled              ${perl-no}"
4693 echo "pod2man enabled           ${pod2man-no}"
4694 echo "makeinfo enabled          ${makeinfo-no}"
4695 test -n "$random_seed" &&
4696     echo "random seed               ${random_seed}"
4697 echo
4698
4699 echo "External libraries:"
4700 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4701 echo
4702
4703 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4704     echo "Enabled ${type}s:"
4705     eval list=\$$(toupper $type)_LIST
4706     print_enabled '_*' $list | print_3_columns
4707     echo
4708 done
4709
4710 license="LGPL version 2.1 or later"
4711 if enabled nonfree; then
4712     license="nonfree and unredistributable"
4713 elif enabled gplv3; then
4714     license="GPL version 3 or later"
4715 elif enabled lgplv3; then
4716     license="LGPL version 3 or later"
4717 elif enabled gpl; then
4718     license="GPL version 2 or later"
4719 fi
4720
4721 echo "License: $license"
4722
4723 echo "Creating config.mak, config.h, and doc/config.texi..."
4724
4725 test -e Makefile || $ln_s "$source_path/Makefile" .
4726
4727 enabled stripping || strip="echo skipping strip"
4728
4729 config_files="$TMPH config.mak doc/config.texi"
4730
4731 cat > config.mak <<EOF
4732 # Automatically generated by configure - do not modify!
4733 ifndef FFMPEG_CONFIG_MAK
4734 FFMPEG_CONFIG_MAK=1
4735 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
4736 prefix=$prefix
4737 LIBDIR=\$(DESTDIR)$libdir
4738 SHLIBDIR=\$(DESTDIR)$shlibdir
4739 INCDIR=\$(DESTDIR)$incdir
4740 BINDIR=\$(DESTDIR)$bindir
4741 DATADIR=\$(DESTDIR)$datadir
4742 DOCDIR=\$(DESTDIR)$docdir
4743 MANDIR=\$(DESTDIR)$mandir
4744 SRC_PATH=$source_path
4745 ifndef MAIN_MAKEFILE
4746 SRC_PATH:=\$(SRC_PATH:.%=..%)
4747 endif
4748 CC_IDENT=$cc_ident
4749 ARCH=$arch
4750 CC=$cc
4751 CXX=$cxx
4752 AS=$as
4753 LD=$ld
4754 DEPCC=$dep_cc
4755 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4756 DEPAS=$as
4757 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4758 YASM=$yasmexe
4759 DEPYASM=$yasmexe
4760 AR=$ar
4761 ARFLAGS=$arflags
4762 AR_O=$ar_o
4763 RANLIB=$ranlib
4764 STRIP=$strip
4765 CP=cp -p
4766 LN_S=$ln_s
4767 CPPFLAGS=$CPPFLAGS
4768 CFLAGS=$CFLAGS
4769 CXXFLAGS=$CXXFLAGS
4770 ASFLAGS=$ASFLAGS
4771 AS_C=$AS_C</