aarch64: configure: set arch dependent features
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # Libav 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 LIBAV, 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 Libav."
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:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --prefix=PREFIX          install in PREFIX [$prefix]
82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
84   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
85   --libdir=DIR             install libs in DIR [PREFIX/lib]
86   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
87   --incdir=DIR             install includes in DIR [PREFIX/include]
88   --mandir=DIR             install man page in DIR [PREFIX/share/man]
89
90 Licensing options:
91   --enable-gpl             allow use of GPL code, the resulting libs
92                            and binaries will be under GPL [no]
93   --enable-version3        upgrade (L)GPL to version 3 [no]
94   --enable-nonfree         allow use of nonfree code, the resulting libs
95                            and binaries will be unredistributable [no]
96
97 Configuration options:
98   --disable-static         do not build static libraries [no]
99   --enable-shared          build shared libraries [no]
100   --enable-small           optimize for size instead of speed
101   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
102   --enable-gray            enable full grayscale support (slower color)
103   --disable-swscale-alpha  disable alpha channel support in swscale
104   --disable-all            disable building components, libraries and programs
105
106 Program options:
107   --disable-programs       do not build command line programs
108   --disable-avconv         disable avconv build
109   --disable-avplay         disable avplay build
110   --disable-avprobe        disable avprobe build
111   --disable-avserver       disable avserver build
112
113 Component options:
114   --disable-doc            do not build documentation
115   --disable-avdevice       disable libavdevice build
116   --disable-avcodec        disable libavcodec build
117   --disable-avformat       disable libavformat build
118   --disable-avutil         disable libavutil build
119   --disable-swscale        disable libswscale build
120   --disable-avfilter       disable video filter support [no]
121   --disable-avresample     disable libavresample build [no]
122   --disable-pthreads       disable pthreads [auto]
123   --disable-w32threads     disable Win32 threads [auto]
124   --disable-network        disable network support [no]
125   --disable-dct            disable DCT code
126   --disable-error-resilience disable error resilience code
127   --disable-lsp            disable LSP code
128   --disable-lzo            disable LZO decoder code
129   --disable-mdct           disable MDCT code
130   --disable-rdft           disable RDFT code
131   --disable-fft            disable FFT code
132
133 Hardware accelerators:
134   --enable-dxva2           enable DXVA2 code
135   --enable-vaapi           enable VAAPI code
136   --enable-vda             enable VDA code
137   --enable-vdpau           enable VDPAU code
138
139 Individual component options:
140   --disable-everything     disable all components listed below
141   --disable-encoder=NAME   disable encoder NAME
142   --enable-encoder=NAME    enable encoder NAME
143   --disable-encoders       disable all encoders
144   --disable-decoder=NAME   disable decoder NAME
145   --enable-decoder=NAME    enable decoder NAME
146   --disable-decoders       disable all decoders
147   --disable-hwaccel=NAME   disable hwaccel NAME
148   --enable-hwaccel=NAME    enable hwaccel NAME
149   --disable-hwaccels       disable all hwaccels
150   --disable-muxer=NAME     disable muxer NAME
151   --enable-muxer=NAME      enable muxer NAME
152   --disable-muxers         disable all muxers
153   --disable-demuxer=NAME   disable demuxer NAME
154   --enable-demuxer=NAME    enable demuxer NAME
155   --disable-demuxers       disable all demuxers
156   --enable-parser=NAME     enable parser NAME
157   --disable-parser=NAME    disable parser NAME
158   --disable-parsers        disable all parsers
159   --enable-bsf=NAME        enable bitstream filter NAME
160   --disable-bsf=NAME       disable bitstream filter NAME
161   --disable-bsfs           disable all bitstream filters
162   --enable-protocol=NAME   enable protocol NAME
163   --disable-protocol=NAME  disable protocol NAME
164   --disable-protocols      disable all protocols
165   --enable-indev=NAME      enable input device NAME
166   --disable-indev=NAME     disable input device NAME
167   --disable-indevs         disable input devices
168   --enable-outdev=NAME     enable output device NAME
169   --disable-outdev=NAME    disable output device NAME
170   --disable-outdevs        disable output devices
171   --disable-devices        disable all devices
172   --enable-filter=NAME     enable filter NAME
173   --disable-filter=NAME    disable filter NAME
174   --disable-filters        disable all filters
175
176 External library support:
177   --enable-avisynth        enable reading of AviSynth script files [no]
178   --enable-bzlib           enable bzlib [autodetect]
179   --enable-frei0r          enable frei0r video filtering
180   --enable-gnutls          enable gnutls [no]
181   --enable-libcdio         enable audio CD grabbing with libcdio
182   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
183                            and libraw1394 [no]
184   --enable-libfaac         enable AAC encoding via libfaac [no]
185   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
186   --enable-libfreetype     enable libfreetype [no]
187   --enable-libgsm          enable GSM de/encoding via libgsm [no]
188   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
189   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
190   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
191   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
192   --enable-libopencv       enable video filtering via libopencv [no]
193   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
194   --enable-libopus         enable Opus decoding via libopus [no]
195   --enable-libpulse        enable Pulseaudio input via libpulse [no]
196   --enable-librtmp         enable RTMP[E] support via librtmp [no]
197   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
198   --enable-libspeex        enable Speex de/encoding via libspeex [no]
199   --enable-libtheora       enable Theora encoding via libtheora [no]
200   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
201   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
202   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
203   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
204   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
205   --enable-libwebp         enable WebP encoding via libwebp [no]
206   --enable-libx264         enable H.264 encoding via x264 [no]
207   --enable-libxavs         enable AVS encoding via xavs [no]
208   --enable-libxvid         enable Xvid encoding via xvidcore,
209                            native MPEG-4/Xvid encoder exists [no]
210   --enable-openssl         enable openssl [no]
211   --enable-x11grab         enable X11 grabbing [no]
212   --enable-zlib            enable zlib [autodetect]
213
214 Advanced options (experts only):
215   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
216   --enable-cross-compile   assume a cross-compiler is used
217   --sysroot=PATH           root of cross-build tree
218   --sysinclude=PATH        location of cross-build system headers
219   --target-os=OS           compiler targets OS [$target_os]
220   --target-exec=CMD        command to run executables on target
221   --target-path=DIR        path to view of build directory on target
222   --target-samples=DIR     path to samples directory on target
223   --toolchain=NAME         set tool defaults according to NAME
224   --nm=NM                  use nm tool
225   --ar=AR                  use archive tool AR [$ar_default]
226   --as=AS                  use assembler AS [$as_default]
227   --cc=CC                  use C compiler CC [$cc_default]
228   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
229   --ld=LD                  use linker LD
230   --host-cc=HOSTCC         use host C compiler HOSTCC
231   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
232   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
233   --host-ld=HOSTLD         use host linker HOSTLD
234   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
235   --host-libs=HLIBS        use libs HLIBS when linking for host
236   --host-os=OS             compiler host OS [$target_os]
237   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
238   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
239   --extra-libs=ELIBS       add ELIBS [$ELIBS]
240   --extra-version=STRING   version string suffix []
241   --optflags=OPTFLAGS      override optimization-related compiler flags
242   --build-suffix=SUFFIX    library name suffix []
243   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
244   --arch=ARCH              select architecture [$arch]
245   --cpu=CPU                select the minimum required CPU (affects
246                            instruction selection, may crash on older CPUs)
247   --enable-pic             build position-independent code
248   --enable-sram            allow use of on-chip SRAM
249   --enable-thumb           compile for Thumb instruction set
250   --disable-symver         disable symbol versioning
251   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
252   --disable-safe-bitstream-reader
253                            disable buffer boundary checking in bitreaders
254                            (faster, but may crash)
255   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
256   --enable-lto             use link-time optimization
257
258 Optimization options (experts only):
259   --disable-asm            disable all assembler optimizations
260   --disable-altivec        disable AltiVec optimizations
261   --disable-amd3dnow       disable 3DNow! optimizations
262   --disable-amd3dnowext    disable 3DNow! extended optimizations
263   --disable-mmx            disable MMX optimizations
264   --disable-mmxext         disable MMXEXT optimizations
265   --disable-sse            disable SSE optimizations
266   --disable-sse2           disable SSE2 optimizations
267   --disable-sse3           disable SSE3 optimizations
268   --disable-ssse3          disable SSSE3 optimizations
269   --disable-sse4           disable SSE4 optimizations
270   --disable-sse42          disable SSE4.2 optimizations
271   --disable-avx            disable AVX optimizations
272   --disable-fma4           disable FMA4 optimizations
273   --disable-avx2           disable AVX2 optimizations
274   --disable-armv5te        disable armv5te optimizations
275   --disable-armv6          disable armv6 optimizations
276   --disable-armv6t2        disable armv6t2 optimizations
277   --disable-vfp            disable VFP optimizations
278   --disable-neon           disable NEON optimizations
279   --disable-vis            disable VIS optimizations
280   --disable-inline-asm     disable use of inline assembler
281   --disable-yasm           disable use of yasm assembler
282
283 Developer options (useful when working on Libav itself):
284   --disable-debug          disable debugging symbols
285   --enable-debug=LEVEL     set the debug level [$debuglevel]
286   --disable-optimizations  disable compiler optimizations
287   --enable-extra-warnings  enable more compiler warnings
288   --samples=PATH           location of test samples for FATE, if not set use
289                            \$LIBAV_SAMPLES at make invocation time.
290   --enable-neon-clobber-test check NEON registers for clobbering (should be
291                            used only for debugging purposes)
292   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
293                            should be used only for debugging purposes)
294   --enable-random          randomly enable/disable components
295   --disable-random
296   --enable-random=LIST     randomly enable/disable specific components or
297   --disable-random=LIST    component groups. LIST is a comma-separated list
298                            of NAME[:PROB] entries where NAME is a component
299                            (group) and PROB the probability associated with
300                            NAME (default 0.5).
301   --random-seed=VALUE      seed value for --enable/disable-random
302
303 NOTE: Object files are built at the place where configure is launched.
304 EOF
305   exit 0
306 }
307
308 quotes='""'
309
310 log(){
311     echo "$@" >> $logfile
312 }
313
314 log_file(){
315     log BEGIN $1
316     pr -n -t $1 >> $logfile
317     log END $1
318 }
319
320 echolog(){
321     log "$@"
322     echo "$@"
323 }
324
325 warn(){
326     log "WARNING: $*"
327     WARNINGS="${WARNINGS}WARNING: $*\n"
328 }
329
330 die(){
331     echolog "$@"
332     cat <<EOF
333
334 If you think configure made a mistake, make sure you are using the latest
335 version from Git.  If the latest version fails, report the problem to the
336 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
337 EOF
338     if disabled logging; then
339         cat <<EOF
340 Rerun configure with logging enabled (do not use --disable-logging), and
341 include the log this produces with your report.
342 EOF
343     else
344         cat <<EOF
345 Include the log file "$logfile" produced by configure as this will help
346 solving the problem.
347 EOF
348     fi
349     exit 1
350 }
351
352 # Avoid locale weirdness, besides we really just want to translate ASCII.
353 toupper(){
354     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
355 }
356
357 tolower(){
358     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
359 }
360
361 c_escape(){
362     echo "$*" | sed 's/["\\]/\\\0/g'
363 }
364
365 sh_quote(){
366     v=$(echo "$1" | sed "s/'/'\\\\''/g")
367     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
368     echo "$v"
369 }
370
371 cleanws(){
372     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
373 }
374
375 filter(){
376     pat=$1
377     shift
378     for v; do
379         eval "case $v in $pat) echo $v ;; esac"
380     done
381 }
382
383 filter_out(){
384     pat=$1
385     shift
386     for v; do
387         eval "case $v in $pat) ;; *) echo $v ;; esac"
388     done
389 }
390
391 map(){
392     m=$1
393     shift
394     for v; do eval $m; done
395 }
396
397 add_suffix(){
398     suffix=$1
399     shift
400     for v; do echo ${v}${suffix}; done
401 }
402
403 set_all(){
404     value=$1
405     shift
406     for var in $*; do
407         eval $var=$value
408     done
409 }
410
411 set_weak(){
412     value=$1
413     shift
414     for var; do
415         eval : \${$var:=$value}
416     done
417 }
418
419 sanitize_var_name(){
420     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
421 }
422
423 set_safe(){
424     var=$1
425     shift
426     eval $(sanitize_var_name "$var")='$*'
427 }
428
429 get_safe(){
430     eval echo \$$(sanitize_var_name "$1")
431 }
432
433 pushvar(){
434     for pvar in $*; do
435         eval level=\${${pvar}_level:=0}
436         eval ${pvar}_${level}="\$$pvar"
437         eval ${pvar}_level=$(($level+1))
438     done
439 }
440
441 popvar(){
442     for pvar in $*; do
443         eval level=\${${pvar}_level:-0}
444         test $level = 0 && continue
445         eval level=$(($level-1))
446         eval $pvar="\${${pvar}_${level}}"
447         eval ${pvar}_level=$level
448         eval unset ${pvar}_${level}
449     done
450 }
451
452 enable(){
453     set_all yes $*
454 }
455
456 disable(){
457     set_all no $*
458 }
459
460 enable_weak(){
461     set_weak yes $*
462 }
463
464 disable_weak(){
465     set_weak no $*
466 }
467
468 enable_safe(){
469     for var; do
470         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
471     done
472 }
473
474 disable_safe(){
475     for var; do
476         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
477     done
478 }
479
480 do_enable_deep(){
481     for var; do
482         enabled $var && continue
483         eval sel="\$${var}_select"
484         eval sgs="\$${var}_suggest"
485         pushvar var sgs
486         enable_deep $sel
487         popvar sgs
488         enable_deep_weak $sgs
489         popvar var
490     done
491 }
492
493 enable_deep(){
494     do_enable_deep $*
495     enable $*
496 }
497
498 enable_deep_weak(){
499     for var; do
500         disabled $var && continue
501         pushvar var
502         do_enable_deep $var
503         popvar var
504         enable_weak $var
505     done
506 }
507
508 enabled(){
509     test "${1#!}" = "$1" && op== || op=!=
510     eval test "x\$${1#!}" $op "xyes"
511 }
512
513 disabled(){
514     test "${1#!}" = "$1" && op== || op=!=
515     eval test "x\$${1#!}" $op "xno"
516 }
517
518 enabled_all(){
519     for opt; do
520         enabled $opt || return 1
521     done
522 }
523
524 disabled_all(){
525     for opt; do
526         disabled $opt || return 1
527     done
528 }
529
530 enabled_any(){
531     for opt; do
532         enabled $opt && return 0
533     done
534 }
535
536 disabled_any(){
537     for opt; do
538         disabled $opt && return 0
539     done
540     return 1
541 }
542
543 set_default(){
544     for opt; do
545         eval : \${$opt:=\$${opt}_default}
546     done
547 }
548
549 is_in(){
550     value=$1
551     shift
552     for var in $*; do
553         [ $var = $value ] && return 0
554     done
555     return 1
556 }
557
558 do_check_deps(){
559     for cfg; do
560         cfg="${cfg#!}"
561         enabled ${cfg}_checking && die "Circular dependency for $cfg."
562         disabled ${cfg}_checking && continue
563         enable ${cfg}_checking
564         append allopts $cfg
565
566         eval dep_all="\$${cfg}_deps"
567         eval dep_any="\$${cfg}_deps_any"
568         eval dep_sel="\$${cfg}_select"
569         eval dep_sgs="\$${cfg}_suggest"
570         eval dep_ifa="\$${cfg}_if"
571         eval dep_ifn="\$${cfg}_if_any"
572
573         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
574         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
575         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
576
577         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
578         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
579         enabled_all  $dep_all || disable $cfg
580         enabled_any  $dep_any || disable $cfg
581         disabled_any $dep_sel && disable $cfg
582
583         if enabled $cfg; then
584             enable_deep $dep_sel
585             enable_deep_weak $dep_sgs
586         fi
587
588         disable ${cfg}_checking
589     done
590 }
591
592 check_deps(){
593     unset allopts
594
595     do_check_deps "$@"
596
597     for cfg in $allopts; do
598         enabled $cfg || continue
599         eval dep_extralibs="\$${cfg}_extralibs"
600         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
601     done
602 }
603
604 print_config(){
605     pfx=$1
606     files=$2
607     shift 2
608     map 'eval echo "$v \${$v:-no}"' "$@" |
609     awk "BEGIN { split(\"$files\", files) }
610         {
611             c = \"$pfx\" toupper(\$1);
612             v = \$2;
613             sub(/yes/, 1, v);
614             sub(/no/,  0, v);
615             for (f in files) {
616                 file = files[f];
617                 if (file ~ /\\.h\$/) {
618                     printf(\"#define %s %d\\n\", c, v) >>file;
619                 } else if (file ~ /\\.asm\$/) {
620                     printf(\"%%define %s %d\\n\", c, v) >>file;
621                 } else if (file ~ /\\.mak\$/) {
622                     n = -v ? \"\" : \"!\";
623                     printf(\"%s%s=yes\\n\", n, c) >>file;
624                 }
625             }
626         }"
627 }
628
629 print_enabled(){
630     suf=$1
631     shift
632     for v; do
633         enabled $v && printf "%s\n" ${v%$suf};
634     done
635 }
636
637 append(){
638     var=$1
639     shift
640     eval "$var=\"\$$var $*\""
641 }
642
643 prepend(){
644     var=$1
645     shift
646     eval "$var=\"$* \$$var\""
647 }
648
649 add_cppflags(){
650     append CPPFLAGS "$@"
651 }
652
653 add_cflags(){
654     append CFLAGS $($cflags_filter "$@")
655 }
656
657 add_asflags(){
658     append ASFLAGS $($asflags_filter "$@")
659 }
660
661 add_ldflags(){
662     append LDFLAGS $($ldflags_filter "$@")
663 }
664
665 add_stripflags(){
666     append STRIPFLAGS "$@"
667 }
668
669 add_extralibs(){
670     prepend extralibs $($ldflags_filter "$@")
671 }
672
673 add_host_cppflags(){
674     append host_cppflags "$@"
675 }
676
677 add_host_cflags(){
678     append host_cflags $($host_cflags_filter "$@")
679 }
680
681 add_host_ldflags(){
682     append host_ldflags $($host_ldflags_filter "$@")
683 }
684
685 add_compat(){
686     append compat_objs $1
687     shift
688     map 'add_cppflags -D$v' "$@"
689 }
690
691 check_cmd(){
692     log "$@"
693     "$@" >> $logfile 2>&1
694 }
695
696 cc_o(){
697     eval printf '%s\\n' $CC_O
698 }
699
700 cc_e(){
701     eval printf '%s\\n' $CC_E
702 }
703
704 check_cc(){
705     log check_cc "$@"
706     cat > $TMPC
707     log_file $TMPC
708     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
709 }
710
711 check_cpp(){
712     log check_cpp "$@"
713     cat > $TMPC
714     log_file $TMPC
715     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
716 }
717
718 as_o(){
719     eval printf '%s\\n' $AS_O
720 }
721
722 check_as(){
723     log check_as "$@"
724     cat > $TMPS
725     log_file $TMPS
726     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
727 }
728
729 check_inline_asm(){
730     log check_inline_asm "$@"
731     name="$1"
732     code="$2"
733     shift 2
734     disable $name
735     check_cc "$@" <<EOF && enable $name
736 void foo(void){ __asm__ volatile($code); }
737 EOF
738 }
739
740 check_insn(){
741     log check_insn "$@"
742     check_inline_asm ${1}_inline "\"$2\""
743     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
744 }
745
746 check_yasm(){
747     log check_yasm "$@"
748     echo "$1" > $TMPS
749     log_file $TMPS
750     shift 1
751     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
752 }
753
754 ld_o(){
755     eval printf '%s\\n' $LD_O
756 }
757
758 check_ld(){
759     log check_ld "$@"
760     flags=$(filter_out '-l*' "$@")
761     libs=$(filter '-l*' "$@")
762     check_cc $($cflags_filter $flags) || return
763     flags=$($ldflags_filter $flags)
764     libs=$($ldflags_filter $libs)
765     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
766 }
767
768 print_include(){
769     hdr=$1
770     test "${hdr%.h}" = "${hdr}" &&
771         echo "#include $hdr"    ||
772         echo "#include <$hdr>"
773 }
774
775 check_code(){
776     log check_code "$@"
777     check=$1
778     headers=$2
779     code=$3
780     shift 3
781     {
782         for hdr in $headers; do
783             print_include $hdr
784         done
785         echo "int main(void) { $code; return 0; }"
786     } | check_$check "$@"
787 }
788
789 check_cppflags(){
790     log check_cppflags "$@"
791     check_cc "$@" <<EOF && append CPPFLAGS "$@"
792 int x;
793 EOF
794 }
795
796 test_cflags(){
797     log test_cflags "$@"
798     set -- $($cflags_filter "$@")
799     check_cc "$@" <<EOF
800 int x;
801 EOF
802 }
803
804 check_cflags(){
805     log check_cflags "$@"
806     test_cflags "$@" && add_cflags "$@"
807 }
808
809 test_ldflags(){
810     log test_ldflags "$@"
811     check_ld "$@" <<EOF
812 int main(void){ return 0; }
813 EOF
814 }
815
816 check_ldflags(){
817     log check_ldflags "$@"
818     test_ldflags "$@" && add_ldflags "$@"
819 }
820
821 test_stripflags(){
822     log test_stripflags "$@"
823     # call check_cc to get a fresh TMPO
824     check_cc <<EOF
825 int main(void) { return 0; }
826 EOF
827     check_cmd $strip $STRIPFLAGS "$@" $TMPO
828 }
829
830 check_stripflags(){
831     log check_stripflags "$@"
832     test_stripflags "$@" && add_stripflags "$@"
833 }
834
835 check_header(){
836     log check_header "$@"
837     header=$1
838     shift
839     disable_safe $header
840     check_cpp "$@" <<EOF && enable_safe $header
841 #include <$header>
842 int x;
843 EOF
844 }
845
846 check_func(){
847     log check_func "$@"
848     func=$1
849     shift
850     disable $func
851     check_ld "$@" <<EOF && enable $func
852 extern int $func();
853 int main(void){ $func(); }
854 EOF
855 }
856
857 check_mathfunc(){
858     log check_mathfunc "$@"
859     func=$1
860     narg=$2
861     shift 2
862     test $narg = 2 && args="f, g" || args="f"
863     disable $func
864     check_ld "$@" <<EOF && enable $func
865 #include <math.h>
866 float foo(float f, float g) { return $func($args); }
867 int main(void){ return 0; }
868 EOF
869 }
870
871 check_func_headers(){
872     log check_func_headers "$@"
873     headers=$1
874     funcs=$2
875     shift 2
876     {
877         for hdr in $headers; do
878             print_include $hdr
879         done
880         for func in $funcs; do
881             echo "long check_$func(void) { return (long) $func; }"
882         done
883         echo "int main(void) { return 0; }"
884     } | check_ld "$@" && enable $funcs && enable_safe $headers
885 }
886
887 check_cpp_condition(){
888     log check_cpp_condition "$@"
889     header=$1
890     condition=$2
891     shift 2
892     check_cpp "$@" <<EOF
893 #include <$header>
894 #if !($condition)
895 #error "unsatisfied condition: $condition"
896 #endif
897 EOF
898 }
899
900 check_lib(){
901     log check_lib "$@"
902     header="$1"
903     func="$2"
904     shift 2
905     check_header $header && check_func $func "$@" && add_extralibs "$@"
906 }
907
908 check_lib2(){
909     log check_lib2 "$@"
910     headers="$1"
911     funcs="$2"
912     shift 2
913     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
914 }
915
916 check_pkg_config(){
917     log check_pkg_config "$@"
918     pkg="$1"
919     headers="$2"
920     funcs="$3"
921     shift 3
922     check_cmd $pkg_config --exists --print-errors $pkg || return
923     pkg_cflags=$($pkg_config --cflags $pkg)
924     pkg_libs=$($pkg_config --libs $pkg)
925     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
926         set_safe ${pkg}_cflags $pkg_cflags   &&
927         set_safe ${pkg}_libs   $pkg_libs
928 }
929
930 check_exec(){
931     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
932 }
933
934 check_exec_crash(){
935     code=$(cat)
936
937     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
938     # are safe but may not be available everywhere.  Thus we use
939     # raise(SIGTERM) instead.  The check is run in a subshell so we
940     # can redirect the "Terminated" message from the shell.  SIGBUS
941     # is not defined by standard C so it is used conditionally.
942
943     (check_exec "$@") >> $logfile 2>&1 <<EOF
944 #include <signal.h>
945 static void sighandler(int sig){
946     raise(SIGTERM);
947 }
948 int foo(void){
949     $code
950 }
951 int (*func_ptr)(void) = foo;
952 int main(void){
953     signal(SIGILL, sighandler);
954     signal(SIGFPE, sighandler);
955     signal(SIGSEGV, sighandler);
956 #ifdef SIGBUS
957     signal(SIGBUS, sighandler);
958 #endif
959     return func_ptr();
960 }
961 EOF
962 }
963
964 check_type(){
965     log check_type "$@"
966     headers=$1
967     type=$2
968     shift 2
969     disable_safe "$type"
970     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
971 }
972
973 check_struct(){
974     log check_struct "$@"
975     headers=$1
976     struct=$2
977     member=$3
978     shift 3
979     disable_safe "${struct}_${member}"
980     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
981         enable_safe "${struct}_${member}"
982 }
983
984 check_builtin(){
985     log check_builtin "$@"
986     name=$1
987     headers=$2
988     builtin=$3
989     shift 3
990     disable "$name"
991     check_code ld "$headers" "$builtin" "$@" && enable "$name"
992 }
993
994 require(){
995     name="$1"
996     header="$2"
997     func="$3"
998     shift 3
999     check_lib $header $func "$@" || die "ERROR: $name not found"
1000 }
1001
1002 require2(){
1003     name="$1"
1004     headers="$2"
1005     func="$3"
1006     shift 3
1007     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1008 }
1009
1010 require_pkg_config(){
1011     pkg="$1"
1012     check_pkg_config "$@" || die "ERROR: $pkg not found"
1013     add_cflags    $(get_safe ${pkg}_cflags)
1014     add_extralibs $(get_safe ${pkg}_libs)
1015 }
1016
1017 hostcc_e(){
1018     eval printf '%s\\n' $HOSTCC_E
1019 }
1020
1021 hostcc_o(){
1022     eval printf '%s\\n' $HOSTCC_O
1023 }
1024
1025 check_host_cc(){
1026     log check_host_cc "$@"
1027     cat > $TMPC
1028     log_file $TMPC
1029     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1030 }
1031
1032 check_host_cpp(){
1033     log check_host_cpp "$@"
1034     cat > $TMPC
1035     log_file $TMPC
1036     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1037 }
1038
1039 check_host_cppflags(){
1040     log check_host_cppflags "$@"
1041     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1042 int x;
1043 EOF
1044 }
1045
1046 check_host_cflags(){
1047     log check_host_cflags "$@"
1048     set -- $($host_cflags_filter "$@")
1049     check_host_cc "$@" <<EOF && append host_cflags "$@"
1050 int x;
1051 EOF
1052 }
1053
1054 check_host_cpp_condition(){
1055     log check_host_cpp_condition "$@"
1056     header=$1
1057     condition=$2
1058     shift 2
1059     check_host_cpp "$@" <<EOF
1060 #include <$header>
1061 #if !($condition)
1062 #error "unsatisfied condition: $condition"
1063 #endif
1064 EOF
1065 }
1066
1067 apply(){
1068     file=$1
1069     shift
1070     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1071 }
1072
1073 cp_if_changed(){
1074     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1075     mkdir -p "$(dirname $2)"
1076     $cp_f "$1" "$2"
1077 }
1078
1079 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1080 # system-dependent things.
1081
1082 COMPONENT_LIST="
1083     bsfs
1084     decoders
1085     demuxers
1086     encoders
1087     filters
1088     hwaccels
1089     indevs
1090     muxers
1091     outdevs
1092     parsers
1093     protocols
1094 "
1095
1096 EXAMPLE_LIST="
1097     output_example
1098     transcode_aac_example
1099 "
1100
1101 EXTERNAL_LIBRARY_LIST="
1102     avisynth
1103     bzlib
1104     frei0r
1105     gnutls
1106     libcdio
1107     libdc1394
1108     libfaac
1109     libfdk_aac
1110     libfreetype
1111     libgsm
1112     libilbc
1113     libmp3lame
1114     libopencore_amrnb
1115     libopencore_amrwb
1116     libopencv
1117     libopenjpeg
1118     libopus
1119     libpulse
1120     librtmp
1121     libschroedinger
1122     libspeex
1123     libtheora
1124     libvo_aacenc
1125     libvo_amrwbenc
1126     libvorbis
1127     libvpx
1128     libwavpack
1129     libwebp
1130     libx264
1131     libxavs
1132     libxvid
1133     openssl
1134     x11grab
1135     zlib
1136 "
1137
1138 HWACCEL_LIST="
1139     dxva2
1140     vaapi
1141     vda
1142     vdpau
1143 "
1144 LIBRARY_LIST="
1145     avcodec
1146     avdevice
1147     avfilter
1148     avformat
1149     avresample
1150     avutil
1151     swscale
1152 "
1153
1154 PROGRAM_LIST="
1155     avconv
1156     avplay
1157     avprobe
1158     avserver
1159 "
1160
1161 CONFIG_LIST="
1162     $COMPONENT_LIST
1163     $EXAMPLE_LIST
1164     $EXTERNAL_LIBRARY_LIST
1165     $HWACCEL_LIST
1166     $LIBRARY_LIST
1167     $PROGRAM_LIST
1168     dct
1169     doc
1170     error_resilience
1171     fft
1172     gpl
1173     gray
1174     hardcoded_tables
1175     lsp
1176     lzo
1177     mdct
1178     memalign_hack
1179     neon_clobber_test
1180     network
1181     nonfree
1182     pod2man
1183     pic
1184     rdft
1185     runtime_cpudetect
1186     safe_bitstream_reader
1187     shared
1188     small
1189     sram
1190     static
1191     swscale_alpha
1192     texi2html
1193     thumb
1194     version3
1195     xmm_clobber_test
1196 "
1197
1198 THREADS_LIST='
1199     pthreads
1200     w32threads
1201 '
1202
1203 ATOMICS_LIST='
1204     atomics_gcc
1205     atomics_suncc
1206     atomics_win32
1207 '
1208
1209 ARCH_LIST='
1210     aarch64
1211     alpha
1212     arm
1213     avr32
1214     avr32_ap
1215     avr32_uc
1216     bfin
1217     ia64
1218     m68k
1219     mips
1220     mips64
1221     parisc
1222     ppc
1223     ppc64
1224     s390
1225     sh4
1226     sparc
1227     sparc64
1228     tilegx
1229     tilepro
1230     tomi
1231     x86
1232     x86_32
1233     x86_64
1234 '
1235
1236 ARCH_EXT_LIST_ARM='
1237     armv5te
1238     armv6
1239     armv6t2
1240     neon
1241     vfp
1242     vfpv3
1243 '
1244
1245 ARCH_EXT_LIST_X86='
1246     amd3dnow
1247     amd3dnowext
1248     avx
1249     avx2
1250     fma4
1251     i686
1252     mmx
1253     mmxext
1254     sse
1255     sse2
1256     sse3
1257     sse4
1258     sse42
1259     ssse3
1260 '
1261
1262 ARCH_EXT_LIST="
1263     $ARCH_EXT_LIST_ARM
1264     $ARCH_EXT_LIST_X86
1265     altivec
1266     ppc4xx
1267     vis
1268 "
1269
1270 HAVE_LIST_CMDLINE='
1271     inline_asm
1272     symver
1273     yasm
1274 '
1275
1276 HAVE_LIST_PUB='
1277     bigendian
1278     fast_unaligned
1279 '
1280
1281 MATH_FUNCS="
1282     atanf
1283     atan2f
1284     cbrtf
1285     cosf
1286     exp2
1287     exp2f
1288     expf
1289     isinf
1290     isnan
1291     ldexpf
1292     llrint
1293     llrintf
1294     log2
1295     log2f
1296     log10f
1297     lrint
1298     lrintf
1299     powf
1300     rint
1301     round
1302     roundf
1303     sinf
1304     trunc
1305     truncf
1306 "
1307
1308 HAVE_LIST="
1309     $ARCH_EXT_LIST
1310     $(add_suffix _external $ARCH_EXT_LIST)
1311     $(add_suffix _inline   $ARCH_EXT_LIST)
1312     $HAVE_LIST_CMDLINE
1313     $HAVE_LIST_PUB
1314     $THREADS_LIST
1315     $ATOMICS_LIST
1316     $MATH_FUNCS
1317     aligned_malloc
1318     aligned_stack
1319     alsa_asoundlib_h
1320     altivec_h
1321     arpa_inet_h
1322     asm_mod_q
1323     asm_mod_y
1324     atomic_cas_ptr
1325     atomics_native
1326     attribute_may_alias
1327     attribute_packed
1328     cdio_paranoia_h
1329     cdio_paranoia_paranoia_h
1330     closesocket
1331     CommandLineToArgvW
1332     cpunop
1333     CryptGenRandom
1334     dcbzl
1335     dev_bktr_ioctl_bt848_h
1336     dev_bktr_ioctl_meteor_h
1337     dev_ic_bt8xx_h
1338     dev_video_bktr_ioctl_bt848_h
1339     dev_video_meteor_ioctl_meteor_h
1340     direct_h
1341     dlfcn_h
1342     dlopen
1343     dos_paths
1344     dxva_h
1345     ebp_available
1346     ebx_available
1347     fast_64bit
1348     fast_clz
1349     fast_cmov
1350     fcntl
1351     fork
1352     getaddrinfo
1353     gethrtime
1354     getopt
1355     GetProcessAffinityMask
1356     GetProcessMemoryInfo
1357     GetProcessTimes
1358     GetSystemTimeAsFileTime
1359     getrusage
1360     getservbyport
1361     gettimeofday
1362     gnu_as
1363     gsm_h
1364     ibm_asm
1365     inet_aton
1366     io_h
1367     inline_asm_labels
1368     isatty
1369     jack_port_get_latency_range
1370     ldbrx
1371     libc_msvcrt
1372     libdc1394_1
1373     libdc1394_2
1374     local_aligned_16
1375     local_aligned_8
1376     localtime_r
1377     loongson
1378     machine_ioctl_bt848_h
1379     machine_ioctl_meteor_h
1380     machine_rw_barrier
1381     malloc_h
1382     MapViewOfFile
1383     memalign
1384     MemoryBarrier
1385     mkstemp
1386     mm_empty
1387     mmap
1388     mprotect
1389     nanosleep
1390     poll_h
1391     posix_memalign
1392     pragma_deprecated
1393     rdtsc
1394     sched_getaffinity
1395     sdl
1396     SetConsoleTextAttribute
1397     setmode
1398     setrlimit
1399     Sleep
1400     sndio_h
1401     socklen_t
1402     soundcard_h
1403     strerror_r
1404     strptime
1405     strtok_r
1406     struct_addrinfo
1407     struct_group_source_req
1408     struct_ip_mreq_source
1409     struct_ipv6_mreq
1410     struct_pollfd
1411     struct_rusage_ru_maxrss
1412     struct_sockaddr_in6
1413     struct_sockaddr_sa_len
1414     struct_sockaddr_storage
1415     struct_v4l2_frmivalenum_discrete
1416     symver_asm_label
1417     symver_gnu_asm
1418     sync_val_compare_and_swap
1419     sysconf
1420     sysctl
1421     sys_mman_h
1422     sys_param_h
1423     sys_resource_h
1424     sys_select_h
1425     sys_soundcard_h
1426     sys_time_h
1427     sys_un_h
1428     sys_videoio_h
1429     threads
1430     unistd_h
1431     usleep
1432     vdpau_x11
1433     vfp_args
1434     VirtualAlloc
1435     windows_h
1436     winsock2_h
1437     xform_asm
1438     xlib
1439     xmm_clobbers
1440 "
1441
1442 # options emitted with CONFIG_ prefix but not available on the command line
1443 CONFIG_EXTRA="
1444     aandcttables
1445     ac3dsp
1446     audio_frame_queue
1447     dsputil
1448     gcrypt
1449     golomb
1450     gplv3
1451     h263dsp
1452     h264chroma
1453     h264dsp
1454     h264pred
1455     h264qpel
1456     hpeldsp
1457     huffman
1458     lgplv3
1459     lpc
1460     mpegaudio
1461     mpegaudiodsp
1462     mpegvideo
1463     mpegvideoenc
1464     nettle
1465     rangecoder
1466     riffdec
1467     riffenc
1468     rtpdec
1469     rtpenc_chain
1470     sinewin
1471     videodsp
1472     vp3dsp
1473 "
1474
1475 CMDLINE_SELECT="
1476     $ARCH_EXT_LIST
1477     $CONFIG_LIST
1478     $HAVE_LIST_CMDLINE
1479     $THREADS_LIST
1480     asm
1481     cross_compile
1482     debug
1483     extra_warnings
1484     logging
1485     lto
1486     optimizations
1487 "
1488
1489 PATHS_LIST='
1490     bindir
1491     datadir
1492     docdir
1493     incdir
1494     libdir
1495     mandir
1496     prefix
1497     shlibdir
1498 '
1499
1500 CMDLINE_SET="
1501     $PATHS_LIST
1502     ar
1503     arch
1504     as
1505     build_suffix
1506     cc
1507     cpu
1508     cross_prefix
1509     dep_cc
1510     extra_version
1511     host_cc
1512     host_cflags
1513     host_ld
1514     host_ldflags
1515     host_libs
1516     host_os
1517     ld
1518     logfile
1519     malloc_prefix
1520     nm
1521     optflags
1522     pkg_config
1523     random_seed
1524     samples
1525     sysinclude
1526     sysroot
1527     target_exec
1528     target_os
1529     target_path
1530     target_samples
1531     toolchain
1532 "
1533
1534 CMDLINE_APPEND="
1535     extra_cflags
1536     host_cppflags
1537 "
1538
1539 # code dependency declarations
1540
1541 # architecture extensions
1542
1543 armv5te_deps="arm"
1544 armv6_deps="arm"
1545 armv6t2_deps="arm"
1546 neon_deps="arm"
1547 vfp_deps="arm"
1548 vfpv3_deps="vfp"
1549
1550 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1551
1552 altivec_deps="ppc"
1553 ppc4xx_deps="ppc"
1554
1555 vis_deps="sparc"
1556
1557 cpunop_deps="i686"
1558 x86_64_select="i686"
1559 x86_64_suggest="fast_cmov"
1560
1561 amd3dnow_deps="mmx"
1562 amd3dnowext_deps="amd3dnow"
1563 mmx_deps="x86"
1564 mmxext_deps="mmx"
1565 sse_deps="mmxext"
1566 sse2_deps="sse"
1567 sse3_deps="sse2"
1568 ssse3_deps="sse3"
1569 sse4_deps="ssse3"
1570 sse42_deps="sse4"
1571 avx_deps="sse42"
1572 fma4_deps="avx"
1573 avx2_deps="avx"
1574
1575 mmx_external_deps="yasm"
1576 mmx_inline_deps="inline_asm"
1577 mmx_suggest="mmx_external mmx_inline"
1578
1579 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1580     eval dep=\$${ext}_deps
1581     eval ${ext}_external_deps='"${dep}_external"'
1582     eval ${ext}_inline_deps='"${dep}_inline"'
1583     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1584 done
1585
1586 aligned_stack_if_any="aarch64 ppc x86"
1587 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1588 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1589 fast_unaligned_if_any="aarch64 ppc x86"
1590
1591 need_memalign="altivec neon sse"
1592
1593 # system capabilities
1594 log2_deps="!libc_msvcrt"
1595
1596 symver_if_any="symver_asm_label symver_gnu_asm"
1597
1598 # threading support
1599 atomics_gcc_if="sync_val_compare_and_swap"
1600 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1601 atomics_win32_if="MemoryBarrier"
1602 atomics_native_if_any="$ATOMICS_LIST"
1603 threads_if_any="$THREADS_LIST"
1604
1605 # subsystems
1606 dct_select="rdft"
1607 error_resilience_select="dsputil"
1608 lpc_select="dsputil"
1609 mdct_select="fft"
1610 rdft_select="fft"
1611 mpegaudio_select="mpegaudiodsp"
1612 mpegaudiodsp_select="dct"
1613 mpegvideo_select="dsputil hpeldsp videodsp"
1614 mpegvideoenc_select="mpegvideo"
1615
1616 # decoders / encoders
1617 aac_decoder_select="mdct sinewin"
1618 aac_encoder_select="audio_frame_queue mdct sinewin"
1619 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1620 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1621 ac3_encoder_select="mdct ac3dsp dsputil"
1622 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1623 aic_decoder_select="dsputil golomb"
1624 alac_encoder_select="lpc"
1625 als_decoder_select="dsputil"
1626 amrnb_decoder_select="lsp"
1627 amrwb_decoder_select="lsp"
1628 amv_decoder_select="dsputil hpeldsp"
1629 ape_decoder_select="dsputil"
1630 asv1_decoder_select="dsputil"
1631 asv1_encoder_select="dsputil"
1632 asv2_decoder_select="dsputil"
1633 asv2_encoder_select="dsputil"
1634 atrac1_decoder_select="mdct sinewin"
1635 atrac3_decoder_select="mdct"
1636 atrac3p_decoder_select="mdct sinewin"
1637 bink_decoder_select="dsputil hpeldsp"
1638 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1639 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1640 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1641 cllc_decoder_select="dsputil"
1642 comfortnoise_encoder_select="lpc"
1643 cook_decoder_select="dsputil mdct sinewin"
1644 cscd_decoder_select="lzo"
1645 cscd_decoder_suggest="zlib"
1646 dca_decoder_select="mdct"
1647 dnxhd_decoder_select="dsputil"
1648 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1649 dvvideo_decoder_select="dsputil"
1650 dvvideo_encoder_select="dsputil"
1651 dxa_decoder_deps="zlib"
1652 eac3_decoder_select="ac3_decoder"
1653 eac3_encoder_select="ac3_encoder"
1654 eamad_decoder_select="aandcttables dsputil mpegvideo"
1655 eatgq_decoder_select="aandcttables dsputil"
1656 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1657 ffv1_decoder_select="dsputil golomb rangecoder"
1658 ffv1_encoder_select="dsputil rangecoder"
1659 ffvhuff_decoder_select="dsputil"
1660 ffvhuff_encoder_select="dsputil huffman"
1661 flac_decoder_select="golomb"
1662 flac_encoder_select="dsputil golomb lpc"
1663 flashsv_decoder_deps="zlib"
1664 flashsv_encoder_deps="zlib"
1665 flashsv2_decoder_deps="zlib"
1666 flv_decoder_select="h263_decoder"
1667 flv_encoder_select="h263_encoder"
1668 fourxm_decoder_select="dsputil"
1669 fraps_decoder_select="dsputil huffman"
1670 g2m_decoder_deps="zlib"
1671 g2m_decoder_select="dsputil"
1672 h261_decoder_select="error_resilience mpegvideo"
1673 h261_encoder_select="aandcttables mpegvideoenc"
1674 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1675 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1676 h263i_decoder_select="h263_decoder"
1677 h263p_encoder_select="h263_encoder"
1678 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1679 h264_decoder_suggest="error_resilience"
1680 hevc_decoder_select="dsputil golomb videodsp"
1681 huffyuv_decoder_select="dsputil"
1682 huffyuv_encoder_select="dsputil huffman"
1683 iac_decoder_select="dsputil fft mdct sinewin"
1684 imc_decoder_select="dsputil fft mdct sinewin"
1685 indeo3_decoder_select="hpeldsp"
1686 interplay_video_decoder_select="hpeldsp"
1687 jpegls_decoder_select="dsputil golomb hpeldsp"
1688 jpegls_encoder_select="golomb"
1689 jv_decoder_select="dsputil"
1690 lagarith_decoder_select="dsputil"
1691 ljpeg_encoder_select="aandcttables mpegvideoenc"
1692 loco_decoder_select="golomb"
1693 mdec_decoder_select="dsputil error_resilience mpegvideo"
1694 metasound_decoder_select="lsp mdct sinewin"
1695 mimic_decoder_select="dsputil hpeldsp"
1696 mjpeg_decoder_select="dsputil hpeldsp"
1697 mjpegb_decoder_select="dsputil hpeldsp"
1698 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1699 mlp_decoder_select="dsputil mlp_parser"
1700 motionpixels_decoder_select="dsputil"
1701 mp1_decoder_select="mpegaudio"
1702 mp1float_decoder_select="mpegaudio"
1703 mp2_decoder_select="mpegaudio"
1704 mp2float_decoder_select="mpegaudio"
1705 mp3_decoder_select="mpegaudio"
1706 mp3adu_decoder_select="mpegaudio"
1707 mp3adufloat_decoder_select="mpegaudio"
1708 mp3float_decoder_select="mpegaudio"
1709 mp3on4_decoder_select="mpegaudio"
1710 mp3on4float_decoder_select="mpegaudio"
1711 mpc7_decoder_select="dsputil mpegaudiodsp"
1712 mpc8_decoder_select="dsputil mpegaudiodsp"
1713 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1714 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1715 mpeg1video_decoder_select="error_resilience mpegvideo"
1716 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1717 mpeg2video_decoder_select="error_resilience mpegvideo"
1718 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1719 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1720 mpeg4_encoder_select="h263_encoder"
1721 msmpeg4v1_decoder_select="h263_decoder"
1722 msmpeg4v2_decoder_select="h263_decoder"
1723 msmpeg4v2_encoder_select="h263_encoder"
1724 msmpeg4v3_decoder_select="h263_decoder"
1725 msmpeg4v3_encoder_select="h263_encoder"
1726 mss2_decoder_select="error_resilience vc1_decoder"
1727 mxpeg_decoder_select="dsputil hpeldsp"
1728 nellymoser_decoder_select="mdct sinewin"
1729 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1730 nuv_decoder_select="dsputil lzo"
1731 png_decoder_deps="zlib"
1732 png_decoder_select="dsputil"
1733 png_encoder_deps="zlib"
1734 png_encoder_select="dsputil"
1735 prores_decoder_select="dsputil"
1736 prores_encoder_select="dsputil"
1737 qcelp_decoder_select="lsp"
1738 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1739 ra_144_encoder_select="audio_frame_queue lpc"
1740 ralf_decoder_select="golomb"
1741 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1742 rv10_encoder_select="h263_encoder"
1743 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1744 rv20_encoder_select="h263_encoder"
1745 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1746 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1747 shorten_decoder_select="golomb"
1748 sipr_decoder_select="lsp"
1749 sp5x_decoder_select="dsputil hpeldsp"
1750 svq1_decoder_select="hpeldsp"
1751 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1752 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1753 svq3_decoder_suggest="error_resilience zlib"
1754 tak_decoder_select="dsputil"
1755 theora_decoder_select="vp3_decoder"
1756 tiff_decoder_suggest="zlib"
1757 tiff_encoder_suggest="zlib"
1758 thp_decoder_select="dsputil hpeldsp"
1759 truehd_decoder_select="mlp_decoder"
1760 truemotion2_decoder_select="dsputil"
1761 truespeech_decoder_select="dsputil"
1762 tscc_decoder_deps="zlib"
1763 twinvq_decoder_select="mdct lsp sinewin"
1764 utvideo_decoder_select="dsputil"
1765 utvideo_encoder_select="dsputil huffman"
1766 vble_decoder_select="dsputil"
1767 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1768 vc1image_decoder_select="vc1_decoder"
1769 vorbis_decoder_select="mdct"
1770 vorbis_encoder_select="mdct"
1771 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1772 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1773 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1774 vp6a_decoder_select="vp6_decoder"
1775 vp6f_decoder_select="vp6_decoder"
1776 vp8_decoder_select="h264pred videodsp"
1777 vp9_decoder_select="videodsp"
1778 webp_decoder_select="vp8_decoder"
1779 wmapro_decoder_select="mdct sinewin"
1780 wmav1_decoder_select="mdct sinewin"
1781 wmav1_encoder_select="mdct sinewin"
1782 wmav2_decoder_select="mdct sinewin"
1783 wmav2_encoder_select="mdct sinewin"
1784 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1785 wmv1_decoder_select="h263_decoder"
1786 wmv1_encoder_select="h263_encoder"
1787 wmv2_decoder_select="h263_decoder videodsp"
1788 wmv2_encoder_select="h263_encoder"
1789 wmv3_decoder_select="vc1_decoder"
1790 wmv3image_decoder_select="wmv3_decoder"
1791 zerocodec_decoder_deps="zlib"
1792 zlib_decoder_deps="zlib"
1793 zlib_encoder_deps="zlib"
1794 zmbv_decoder_deps="zlib"
1795 zmbv_encoder_deps="zlib"
1796
1797 # hardware accelerators
1798 dxva2_deps="dxva2api_h"
1799 vaapi_deps="va_va_h"
1800 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1801 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1802 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1803
1804 h263_vaapi_hwaccel_deps="vaapi"
1805 h263_vaapi_hwaccel_select="h263_decoder"
1806 h263_vdpau_hwaccel_deps="vdpau"
1807 h263_vdpau_hwaccel_select="h263_decoder"
1808 h264_dxva2_hwaccel_deps="dxva2"
1809 h264_dxva2_hwaccel_select="h264_decoder"
1810 h264_vaapi_hwaccel_deps="vaapi"
1811 h264_vaapi_hwaccel_select="h264_decoder"
1812 h264_vda_hwaccel_deps="vda"
1813 h264_vda_hwaccel_select="h264_decoder"
1814 h264_vdpau_hwaccel_deps="vdpau"
1815 h264_vdpau_hwaccel_select="h264_decoder"
1816 mpeg1_vdpau_hwaccel_deps="vdpau"
1817 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1818 mpeg2_dxva2_hwaccel_deps="dxva2"
1819 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1820 mpeg2_vaapi_hwaccel_deps="vaapi"
1821 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1822 mpeg2_vdpau_hwaccel_deps="vdpau"
1823 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1824 mpeg4_vaapi_hwaccel_deps="vaapi"
1825 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1826 mpeg4_vdpau_hwaccel_deps="vdpau"
1827 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1828 vc1_dxva2_hwaccel_deps="dxva2"
1829 vc1_dxva2_hwaccel_select="vc1_decoder"
1830 vc1_vaapi_hwaccel_deps="vaapi"
1831 vc1_vaapi_hwaccel_select="vc1_decoder"
1832 vc1_vdpau_hwaccel_deps="vdpau"
1833 vc1_vdpau_hwaccel_select="vc1_decoder"
1834 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1835 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1836 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1837
1838 # parsers
1839 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1840 mpeg4video_parser_select="error_resilience mpegvideo"
1841 mpegvideo_parser_select="error_resilience mpegvideo"
1842 vc1_parser_select="mpegvideo"
1843
1844 # external libraries
1845 libfaac_encoder_deps="libfaac"
1846 libfaac_encoder_select="audio_frame_queue"
1847 libfdk_aac_decoder_deps="libfdk_aac"
1848 libfdk_aac_encoder_deps="libfdk_aac"
1849 libfdk_aac_encoder_select="audio_frame_queue"
1850 libgsm_decoder_deps="libgsm"
1851 libgsm_encoder_deps="libgsm"
1852 libgsm_ms_decoder_deps="libgsm"
1853 libgsm_ms_encoder_deps="libgsm"
1854 libilbc_decoder_deps="libilbc"
1855 libilbc_encoder_deps="libilbc"
1856 libmp3lame_encoder_deps="libmp3lame"
1857 libmp3lame_encoder_select="audio_frame_queue"
1858 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1859 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1860 libopencore_amrnb_encoder_select="audio_frame_queue"
1861 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1862 libopenjpeg_decoder_deps="libopenjpeg"
1863 libopenjpeg_encoder_deps="libopenjpeg"
1864 libopus_decoder_deps="libopus"
1865 libopus_encoder_deps="libopus"
1866 libopus_encoder_select="audio_frame_queue"
1867 libschroedinger_decoder_deps="libschroedinger"
1868 libschroedinger_encoder_deps="libschroedinger"
1869 libspeex_decoder_deps="libspeex"
1870 libspeex_encoder_deps="libspeex"
1871 libspeex_encoder_select="audio_frame_queue"
1872 libtheora_encoder_deps="libtheora"
1873 libvo_aacenc_encoder_deps="libvo_aacenc"
1874 libvo_aacenc_encoder_select="audio_frame_queue"
1875 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1876 libvorbis_encoder_deps="libvorbis"
1877 libvorbis_encoder_select="audio_frame_queue"
1878 libvpx_vp8_decoder_deps="libvpx"
1879 libvpx_vp8_encoder_deps="libvpx"
1880 libvpx_vp9_decoder_deps="libvpx"
1881 libvpx_vp9_encoder_deps="libvpx"
1882 libwavpack_encoder_deps="libwavpack"
1883 libwebp_encoder_deps="libwebp"
1884 libx264_encoder_deps="libx264"
1885 libxavs_encoder_deps="libxavs"
1886 libxvid_encoder_deps="libxvid"
1887
1888 # demuxers / muxers
1889 ac3_demuxer_select="ac3_parser"
1890 asf_demuxer_select="riffdec"
1891 asf_muxer_select="riffenc"
1892 asf_stream_muxer_select="asf_muxer"
1893 avi_demuxer_select="riffdec"
1894 avi_muxer_select="riffenc"
1895 avisynth_demuxer_deps="avisynth"
1896 avisynth_demuxer_select="riffdec"
1897 caf_demuxer_select="riffdec"
1898 dirac_demuxer_select="dirac_parser"
1899 dxa_demuxer_select="riffdec"
1900 eac3_demuxer_select="ac3_parser"
1901 f4v_muxer_select="mov_muxer"
1902 flac_demuxer_select="flac_parser"
1903 hds_muxer_select="flv_muxer"
1904 hls_muxer_select="mpegts_muxer"
1905 ipod_muxer_select="mov_muxer"
1906 ismv_muxer_select="mov_muxer"
1907 matroska_audio_muxer_select="matroska_muxer"
1908 matroska_demuxer_select="riffdec"
1909 matroska_demuxer_suggest="bzlib lzo zlib"
1910 matroska_muxer_select="riffenc"
1911 mmf_muxer_select="riffenc"
1912 mov_demuxer_select="riffdec"
1913 mov_demuxer_suggest="zlib"
1914 mov_muxer_select="riffenc rtpenc_chain"
1915 mp3_demuxer_select="mpegaudio_parser"
1916 mp4_muxer_select="mov_muxer"
1917 mpegts_muxer_select="adts_muxer latm_muxer"
1918 mpegtsraw_demuxer_select="mpegts_demuxer"
1919 mxf_d10_muxer_select="mxf_muxer"
1920 nut_muxer_select="riffenc"
1921 nuv_demuxer_select="riffdec"
1922 ogg_demuxer_select="golomb"
1923 psp_muxer_select="mov_muxer"
1924 rtp_demuxer_select="sdp_demuxer"
1925 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1926 rtsp_demuxer_select="http_protocol rtpdec"
1927 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1928 sap_demuxer_select="sdp_demuxer"
1929 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1930 sdp_demuxer_select="rtpdec"
1931 smoothstreaming_muxer_select="ismv_muxer"
1932 spdif_muxer_select="aac_parser"
1933 tak_demuxer_select="tak_parser"
1934 tg2_muxer_select="mov_muxer"
1935 tgp_muxer_select="mov_muxer"
1936 w64_demuxer_select="wav_demuxer"
1937 wav_demuxer_select="riffdec"
1938 wav_muxer_select="riffenc"
1939 webm_muxer_select="riffenc"
1940 wtv_demuxer_select="riffdec"
1941 xmv_demuxer_select="riffdec"
1942 xwma_demuxer_select="riffdec"
1943
1944 # indevs / outdevs
1945 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1946 alsa_outdev_deps="alsa_asoundlib_h"
1947 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1948 dv1394_indev_deps="dv1394"
1949 dv1394_indev_select="dv_demuxer"
1950 fbdev_indev_deps="linux_fb_h"
1951 jack_indev_deps="jack_jack_h pthreads"
1952 libcdio_indev_deps="libcdio"
1953 libdc1394_indev_deps="libdc1394"
1954 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1955 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1956 pulse_indev_deps="libpulse"
1957 sndio_indev_deps="sndio_h"
1958 sndio_outdev_deps="sndio_h"
1959 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1960 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1961 vfwcap_indev_extralibs="-lavicap32"
1962 x11grab_indev_deps="x11grab XShmCreateImage"
1963
1964 # protocols
1965 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1966 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1967 ffrtmpcrypt_protocol_select="tcp_protocol"
1968 ffrtmphttp_protocol_deps="!librtmp_protocol"
1969 ffrtmphttp_protocol_select="http_protocol"
1970 gopher_protocol_select="network"
1971 httpproxy_protocol_select="tcp_protocol"
1972 http_protocol_select="tcp_protocol"
1973 https_protocol_select="tls_protocol"
1974 librtmp_protocol_deps="librtmp"
1975 librtmpe_protocol_deps="librtmp"
1976 librtmps_protocol_deps="librtmp"
1977 librtmpt_protocol_deps="librtmp"
1978 librtmpte_protocol_deps="librtmp"
1979 mmsh_protocol_select="http_protocol"
1980 mmst_protocol_select="network"
1981 rtmp_protocol_deps="!librtmp_protocol"
1982 rtmp_protocol_select="tcp_protocol"
1983 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1984 rtmps_protocol_deps="!librtmp_protocol"
1985 rtmps_protocol_select="tls_protocol"
1986 rtmpt_protocol_select="ffrtmphttp_protocol"
1987 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1988 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1989 rtp_protocol_select="udp_protocol"
1990 sctp_protocol_deps="struct_sctp_event_subscribe"
1991 sctp_protocol_select="network"
1992 srtp_protocol_select="rtp_protocol"
1993 tcp_protocol_select="network"
1994 tls_protocol_deps_any="openssl gnutls"
1995 tls_protocol_select="tcp_protocol"
1996 udp_protocol_select="network"
1997 unix_protocol_deps="sys_un_h"
1998 unix_protocol_select="network"
1999
2000 # filters
2001 blackframe_filter_deps="gpl"
2002 boxblur_filter_deps="gpl"
2003 cropdetect_filter_deps="gpl"
2004 delogo_filter_deps="gpl"
2005 drawtext_filter_deps="libfreetype"
2006 frei0r_filter_deps="frei0r dlopen strtok_r"
2007 frei0r_filter_extralibs='$ldl'
2008 frei0r_src_filter_deps="frei0r dlopen strtok_r"
2009 frei0r_src_filter_extralibs='$ldl'
2010 hqdn3d_filter_deps="gpl"
2011 interlace_filter_deps="gpl"
2012 resample_filter_deps="avresample"
2013 ocv_filter_deps="libopencv"
2014 scale_filter_deps="swscale"
2015
2016 # examples
2017 output_example_deps="avcodec avformat avutil swscale"
2018 transcode_aac_example_deps="avcodec avformat avresample"
2019
2020 # libraries
2021 avcodec_deps="avutil"
2022 avdevice_deps="avutil avcodec avformat"
2023 avfilter_deps="avutil"
2024 avformat_deps="avutil avcodec"
2025 avresample_deps="avutil"
2026 swscale_deps="avutil"
2027
2028 # programs
2029 avconv_deps="avcodec avfilter avformat avresample swscale"
2030 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2031                fps_filter null_filter resample_filter scale_filter
2032                setpts_filter trim_filter"
2033 avplay_deps="avcodec avformat avresample swscale sdl"
2034 avplay_select="rdft"
2035 avprobe_deps="avcodec avformat"
2036 avserver_deps="avformat fork !shared"
2037 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2038 avserver_extralibs='$ldl'
2039
2040 # documentation
2041 pod2man_deps="doc"
2042 texi2html_deps="doc"
2043
2044 # default parameters
2045
2046 logfile="config.log"
2047
2048 # installation paths
2049 prefix_default="/usr/local"
2050 bindir_default='${prefix}/bin'
2051 datadir_default='${prefix}/share/avconv'
2052 docdir_default='${prefix}/share/doc/libav'
2053 incdir_default='${prefix}/include'
2054 libdir_default='${prefix}/lib'
2055 mandir_default='${prefix}/share/man'
2056 shlibdir_default="$libdir_default"
2057
2058 # toolchain
2059 ar_default="ar"
2060 cc_default="gcc"
2061 host_cc_default="gcc"
2062 cp_f="cp -f"
2063 ln_s="ln -s -f"
2064 nm_default="nm -g"
2065 objformat="elf"
2066 pkg_config_default=pkg-config
2067 ranlib="ranlib"
2068 strip="strip"
2069 yasmexe="yasm"
2070
2071 nogas=":"
2072
2073 # machine
2074 arch_default=$(uname -m)
2075 cpu="generic"
2076
2077 # OS
2078 target_os_default=$(tolower $(uname -s))
2079 host_os=$target_os_default
2080
2081 # configurable options
2082 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2083
2084 enable asm
2085 enable debug
2086 enable doc
2087 enable optimizations
2088 enable safe_bitstream_reader
2089 enable static
2090 enable swscale_alpha
2091
2092 # By default, enable only those hwaccels that have no external dependencies.
2093 enable dxva2 vdpau
2094
2095 # build settings
2096 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2097 LIBPREF="lib"
2098 LIBSUF=".a"
2099 FULLNAME='$(NAME)$(BUILDSUF)'
2100 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2101 SLIBPREF="lib"
2102 SLIBSUF=".so"
2103 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2104 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2105 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2106 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2107 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2108 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2109
2110 asflags_filter=echo
2111 cflags_filter=echo
2112 ldflags_filter=echo
2113
2114 AS_C='-c'
2115 AS_O='-o $@'
2116 CC_C='-c'
2117 CC_E='-E -o $@'
2118 CC_O='-o $@'
2119 LD_O='-o $@'
2120 LD_LIB='-l%'
2121 LD_PATH='-L'
2122 HOSTCC_C='-c'
2123 HOSTCC_E='-E -o $@'
2124 HOSTCC_O='-o $@'
2125 HOSTLD_O='-o $@'
2126
2127 host_cflags='-O3'
2128 host_cppflags='-D_ISOC99_SOURCE'
2129 host_libs='-lm'
2130 host_cflags_filter=echo
2131 host_ldflags_filter=echo
2132
2133 target_path='$(CURDIR)'
2134
2135 # since the object filename is not given with the -MM flag, the compiler
2136 # is only able to print the basename, and we must add the path ourselves
2137 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2138 DEPFLAGS='-MM'
2139
2140 # find source path
2141 if test -f configure; then
2142     source_path=.
2143 else
2144     source_path=$(cd $(dirname "$0"); pwd)
2145     echo "$source_path" | grep -q '[[:blank:]]' &&
2146         die "Out of tree builds are impossible with whitespace in source path."
2147     test -e "$source_path/config.h" &&
2148         die "Out of tree builds are impossible with config.h in source dir."
2149 fi
2150
2151 for v in "$@"; do
2152     r=${v#*=}
2153     l=${v%"$r"}
2154     r=$(sh_quote "$r")
2155     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2156 done
2157
2158 find_things(){
2159     thing=$1
2160     pattern=$2
2161     file=$source_path/$3
2162     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2163 }
2164
2165 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2166 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2167 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2168 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2169 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2170 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2171 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2172 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2173 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2174 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2175 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2176
2177 ALL_COMPONENTS="
2178     $BSF_LIST
2179     $DECODER_LIST
2180     $DEMUXER_LIST
2181     $ENCODER_LIST
2182     $FILTER_LIST
2183     $HWACCEL_LIST
2184     $INDEV_LIST
2185     $MUXER_LIST
2186     $OUTDEV_LIST
2187     $PARSER_LIST
2188     $PROTOCOL_LIST
2189 "
2190
2191 for n in $COMPONENT_LIST; do
2192     v=$(toupper ${n%s})_LIST
2193     eval enable \$$v
2194     eval ${n}_if_any="\$$v"
2195 done
2196
2197 enable $ARCH_EXT_LIST
2198
2199 die_unknown(){
2200     echo "Unknown option \"$1\"."
2201     echo "See $0 --help for available options."
2202     exit 1
2203 }
2204
2205 print_3_columns() {
2206     cat | tr ' ' '\n' | sort | pr -r -3 -t
2207 }
2208
2209 show_list() {
2210     suffix=_$1
2211     shift
2212     echo $* | sed s/$suffix//g | print_3_columns
2213     exit 0
2214 }
2215
2216 rand_list(){
2217     IFS=', '
2218     set -- $*
2219     unset IFS
2220     for thing; do
2221         comp=${thing%:*}
2222         prob=${thing#$comp}
2223         prob=${prob#:}
2224         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2225         echo "prob ${prob:-0.5}"
2226         printf '%s\n' $comp
2227     done
2228 }
2229
2230 do_random(){
2231     action=$1
2232     shift
2233     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2234     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2235 }
2236
2237 for opt do
2238     optval="${opt#*=}"
2239     case "$opt" in
2240         --extra-ldflags=*)
2241             add_ldflags $optval
2242         ;;
2243         --extra-libs=*)
2244             add_extralibs $optval
2245         ;;
2246         --disable-devices)
2247             disable $INDEV_LIST $OUTDEV_LIST
2248         ;;
2249         --enable-debug=*)
2250             debuglevel="$optval"
2251         ;;
2252         --disable-programs)
2253             disable $PROGRAM_LIST
2254         ;;
2255         --disable-everything)
2256             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2257         ;;
2258         --disable-all)
2259             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2260             disable $LIBRARY_LIST $PROGRAM_LIST doc
2261         ;;
2262         --enable-random|--disable-random)
2263             action=${opt%%-random}
2264             do_random ${action#--} $COMPONENT_LIST
2265         ;;
2266         --enable-random=*|--disable-random=*)
2267             action=${opt%%-random=*}
2268             do_random ${action#--} $optval
2269         ;;
2270         --enable-*=*|--disable-*=*)
2271             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2272             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2273             eval list=\$$(toupper $thing)_LIST
2274             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2275             $action $(filter "$name" $list)
2276         ;;
2277         --enable-?*|--disable-?*)
2278             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2279             if is_in $option $COMPONENT_LIST; then
2280                 test $action = disable && action=unset
2281                 eval $action \$$(toupper ${option%s})_LIST
2282             elif is_in $option $CMDLINE_SELECT; then
2283                 $action $option
2284             else
2285                 die_unknown $opt
2286             fi
2287         ;;
2288         --list-*)
2289             NAME="${opt#--list-}"
2290             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2291             NAME=${NAME%s}
2292             eval show_list $NAME \$$(toupper $NAME)_LIST
2293         ;;
2294         --help|-h) show_help
2295         ;;
2296         *)
2297             optname="${opt%%=*}"
2298             optname="${optname#--}"
2299             optname=$(echo "$optname" | sed 's/-/_/g')
2300             if is_in $optname $CMDLINE_SET; then
2301                 eval $optname='$optval'
2302             elif is_in $optname $CMDLINE_APPEND; then
2303                 append $optname "$optval"
2304             else
2305                 die_unknown $opt
2306             fi
2307         ;;
2308     esac
2309 done
2310
2311 disabled logging && logfile=/dev/null
2312
2313 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2314 set >> $logfile
2315
2316 test -n "$cross_prefix" && enable cross_compile
2317
2318 if enabled cross_compile; then
2319     test -n "$arch" && test -n "$target_os" ||
2320         die "Must specify target arch and OS when cross-compiling"
2321 fi
2322
2323 ar_default="${cross_prefix}${ar_default}"
2324 cc_default="${cross_prefix}${cc_default}"
2325 nm_default="${cross_prefix}${nm_default}"
2326 pkg_config_default="${cross_prefix}${pkg_config_default}"
2327 ranlib="${cross_prefix}${ranlib}"
2328 strip="${cross_prefix}${strip}"
2329
2330 sysinclude_default="${sysroot}/usr/include"
2331
2332 case "$toolchain" in
2333     clang-asan)
2334         cc_default="clang"
2335         add_cflags  -fsanitize=address
2336         add_ldflags -fsanitize=address
2337     ;;
2338     clang-tsan)
2339         cc_default="clang"
2340         add_cflags  -fsanitize=thread -pie
2341         add_ldflags -fsanitize=thread -pie
2342     ;;
2343     gcc-asan)
2344         cc_default="gcc"
2345         add_cflags  -fsanitize=address
2346         add_ldflags -fsanitize=address
2347     ;;
2348     gcc-tsan)
2349         cc_default="gcc"
2350         add_cflags  -fsanitize=thread -pie -fPIC
2351         add_ldflags -fsanitize=thread -pie -fPIC
2352     ;;
2353     valgrind-massif)
2354         target_exec_default="valgrind"
2355         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2356     ;;
2357     valgrind-memcheck)
2358         target_exec_default="valgrind"
2359         target_exec_args="--track-origins=yes --leak-check=full"
2360     ;;
2361     msvc)
2362         # Check whether the current MSVC version needs the C99 converter.
2363         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2364         # support enough of C99 to build libav. Default to the new
2365         # behaviour if the regexp was unable to match anything, since this
2366         # successfully parses the version number of existing supported
2367         # versions that require the converter (MSVC 2010 and 2012).
2368         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2369         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2370             cc_default="cl"
2371         else
2372             cc_default="c99wrap cl"
2373         fi
2374         ld_default="link"
2375         nm_default="dumpbin -symbols"
2376         ar_default="lib"
2377         target_os_default="win32"
2378         # Use a relative path for TMPDIR. This makes sure all the
2379         # ffconf temp files are written with a relative path, avoiding
2380         # issues with msys/win32 path conversion for MSVC parameters
2381         # such as -Fo<file> or -out:<file>.
2382         TMPDIR=.
2383     ;;
2384     icl)
2385         cc_default="icl"
2386         ld_default="xilink"
2387         nm_default="dumpbin -symbols"
2388         ar_default="xilib"
2389         target_os_default="win32"
2390         TMPDIR=.
2391     ;;
2392     gcov)
2393         add_cflags  -fprofile-arcs -ftest-coverage
2394         add_ldflags -fprofile-arcs -ftest-coverage
2395     ;;
2396     hardened)
2397         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2398         add_ldflags -Wl,-z,relro -Wl,-z,now
2399     ;;
2400     ?*)
2401         die "Unknown toolchain $toolchain"
2402     ;;
2403 esac
2404
2405 set_default arch cc pkg_config sysinclude target_exec target_os
2406 enabled cross_compile || host_cc_default=$cc
2407 set_default host_cc
2408
2409 if ! $pkg_config --version >/dev/null 2>&1; then
2410     warn "$pkg_config not found, library detection may fail."
2411     pkg_config=false
2412 fi
2413
2414 exesuf() {
2415     case $1 in
2416         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2417     esac
2418 }
2419
2420 EXESUF=$(exesuf $target_os)
2421 HOSTEXESUF=$(exesuf $host_os)
2422
2423 # set temporary file name
2424 : ${TMPDIR:=$TEMPDIR}
2425 : ${TMPDIR:=$TMP}
2426 : ${TMPDIR:=/tmp}
2427
2428 if ! check_cmd mktemp -u XXXXXX; then
2429     # simple replacement for missing mktemp
2430     # NOT SAFE FOR GENERAL USE
2431     mktemp(){
2432         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2433     }
2434 fi
2435
2436 tmpfile(){
2437     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2438         (set -C; exec > $tmp) 2>/dev/null ||
2439         die "Unable to create temporary file in $TMPDIR."
2440     append TMPFILES $tmp
2441     eval $1=$tmp
2442 }
2443
2444 trap 'rm -f -- $TMPFILES' EXIT
2445
2446 tmpfile TMPASM .asm
2447 tmpfile TMPC   .c
2448 tmpfile TMPE   $EXESUF
2449 tmpfile TMPH   .h
2450 tmpfile TMPO   .o
2451 tmpfile TMPS   .S
2452 tmpfile TMPSH  .sh
2453 tmpfile TMPV   .ver
2454
2455 unset -f mktemp
2456
2457 chmod +x $TMPE
2458
2459 # make sure we can execute files in $TMPDIR
2460 cat > $TMPSH 2>> $logfile <<EOF
2461 #! /bin/sh
2462 EOF
2463 chmod +x $TMPSH >> $logfile 2>&1
2464 if ! $TMPSH >> $logfile 2>&1; then
2465     cat <<EOF
2466 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2467 variable to another directory and make sure that it is not mounted noexec.
2468 EOF
2469     die "Sanity test failed."
2470 fi
2471
2472 ccc_flags(){
2473     for flag; do
2474         case $flag in
2475             -std=c99)           echo -c99                       ;;
2476             -mcpu=*)            echo -arch ${flag#*=}           ;;
2477             -mieee)             echo -ieee                      ;;
2478             -O*|-fast)          echo $flag                      ;;
2479             -fno-math-errno)    echo -assume nomath_errno       ;;
2480             -g)                 echo -g3                        ;;
2481             -Wall)              echo -msg_enable level2         ;;
2482             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2483             -Wl,*)              echo $flag                      ;;
2484             -f*|-W*)                                            ;;
2485             *)                  echo $flag                      ;;
2486         esac
2487    done
2488 }
2489
2490 cparser_flags(){
2491     for flag; do
2492         case $flag in
2493             -Wno-switch)             echo -Wno-switch-enum ;;
2494             -Wno-format-zero-length) ;;
2495             -Wdisabled-optimization) ;;
2496             -Wno-pointer-sign)       echo -Wno-other ;;
2497             *)                       echo $flag ;;
2498         esac
2499     done
2500 }
2501
2502 msvc_common_flags(){
2503     for flag; do
2504         case $flag in
2505             # In addition to specifying certain flags under the compiler
2506             # specific filters, they must be specified here as well or else the
2507             # generic catch all at the bottom will print the original flag.
2508             -Wall)                ;;
2509             -std=c99)             ;;
2510             # Common flags
2511             -fomit-frame-pointer) ;;
2512             -g)                   echo -Z7 ;;
2513             -fno-math-errno)      ;;
2514             -fno-common)          ;;
2515             -fno-signed-zeros)    ;;
2516             -fPIC)                ;;
2517             -mthumb)              ;;
2518             -march=*)             ;;
2519             -lz)                  echo zlib.lib ;;
2520             -lavifil32)           echo vfw32.lib ;;
2521             -lavicap32)           echo vfw32.lib user32.lib ;;
2522             -l*)                  echo ${flag#-l}.lib ;;
2523             *)                    echo $flag ;;
2524         esac
2525     done
2526 }
2527
2528 msvc_flags(){
2529     msvc_common_flags "$@"
2530     for flag; do
2531         case $flag in
2532             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2533                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2534                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2535                                        -wd4273 ;;
2536         esac
2537     done
2538 }
2539
2540 icl_flags(){
2541     msvc_common_flags "$@"
2542     for flag; do
2543         case $flag in
2544             # Despite what Intel's documentation says -Wall, which is supported
2545             # on Windows, does enable remarks so disable them here.
2546             -Wall)                echo $flag -Qdiag-disable:remark ;;
2547             -std=c99)             echo -Qstd=c99 ;;
2548         esac
2549     done
2550 }
2551
2552 pgi_flags(){
2553     for flag; do
2554         case $flag in
2555             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2556             -fomit-frame-pointer) echo -Mnoframe ;;
2557             -g)                   echo -gopt ;;
2558             *)                    echo $flag ;;
2559         esac
2560     done
2561 }
2562
2563 suncc_flags(){
2564     for flag; do
2565         case $flag in
2566             -march=*|-mcpu=*)
2567                 case "${flag#*=}" in
2568                     native)                   echo -xtarget=native       ;;
2569                     v9|niagara)               echo -xarch=sparc          ;;
2570                     ultrasparc)               echo -xarch=sparcvis       ;;
2571                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2572                     i586|pentium)             echo -xchip=pentium        ;;
2573                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2574                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2575                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2576                     pentium4*)          echo -xtarget=pentium4           ;;
2577                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2578                     *-sse3)             echo -xarch=sse3                 ;;
2579                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2580                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2581                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2582                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2583                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2584                     k8|opteron|athlon64|athlon-fx)
2585                                                echo -xarch=sse2a         ;;
2586                     athlon*)                   echo -xarch=pentium_proa  ;;
2587                 esac
2588                 ;;
2589             -std=c99)             echo -xc99              ;;
2590             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2591             -fPIC)                echo -KPIC -xcode=pic32 ;;
2592             -W*,*)                echo $flag              ;;
2593             -f*-*|-W*|-mimpure-text)                      ;;
2594             -shared)              echo -G                 ;;
2595             *)                    echo $flag              ;;
2596         esac
2597     done
2598 }
2599
2600 tms470_flags(){
2601     for flag; do
2602         case $flag in
2603             -march=*|-mcpu=*)
2604                 case "${flag#*=}" in
2605                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2606                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2607                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2608                     armv6*|arm11*)          echo -mv=6   ;;
2609                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2610                                             echo -mv=5e  ;;
2611                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2612                 esac
2613                 ;;
2614             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2615             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2616             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2617             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2618             -msoft-float)   echo --float_support=vfplib       ;;
2619             -O[0-3]|-mf=*)  echo $flag                        ;;
2620             -g)             echo -g -mn                       ;;
2621             -pds=*)         echo $flag                        ;;
2622             -D*|-I*)        echo $flag                        ;;
2623             --gcc|--abi=*)  echo $flag                        ;;
2624             -me)            echo $flag                        ;;
2625         esac
2626     done
2627 }
2628
2629 probe_cc(){
2630     pfx=$1
2631     _cc=$2
2632
2633     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2634     unset _ld_o _ldflags _ld_lib _ld_path
2635     unset _depflags _DEPCMD _DEPFLAGS
2636     _flags_filter=echo
2637
2638     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2639         _type=llvm_gcc
2640         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2641         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2642         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2643         _cflags_speed='-O3'
2644         _cflags_size='-Os'
2645     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2646         _type=gcc
2647         gcc_version=$($_cc --version | head -n1)
2648         gcc_basever=$($_cc -dumpversion)
2649         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2650         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2651         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2652         if ! $_cc -dumpversion | grep -q '^2\.'; then
2653             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2654         fi
2655         _cflags_speed='-O3'
2656         _cflags_size='-Os'
2657     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2658         _type=icc
2659         _ident=$($_cc --version | head -n1)
2660         _depflags='-MMD'
2661         _cflags_speed='-O3'
2662         _cflags_size='-Os'
2663         _cflags_noopt='-O1'
2664     elif $_cc -v 2>&1 | grep -q xlc; then
2665         _type=xlc
2666         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2667         _cflags_speed='-O5'
2668         _cflags_size='-O5 -qcompact'
2669     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2670         _type=ccc
2671         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2672         _DEPFLAGS='-M'
2673         _cflags_speed='-fast'
2674         _cflags_size='-O1'
2675         _flags_filter=ccc_flags
2676     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2677         test -d "$sysroot" || die "No valid sysroot specified."
2678         _type=armcc
2679         _ident=$($_cc --vsn | head -n1)
2680         armcc_conf="$PWD/armcc.conf"
2681         $_cc --arm_linux_configure                 \
2682              --arm_linux_config_file="$armcc_conf" \
2683              --configure_sysroot="$sysroot"        \
2684              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2685              die "Error creating armcc configuration file."
2686         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2687         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2688         as_default="${cross_prefix}gcc"
2689         _depflags='-MMD'
2690         _cflags_speed='-O3'
2691         _cflags_size='-Os'
2692     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2693         _type=tms470
2694         _ident=$($_cc -version | head -n1 | tr -s ' ')
2695         _flags='--gcc --abi=eabi -me'
2696         _cc_e='-ppl -fe=$@'
2697         _cc_o='-fe=$@'
2698         _depflags='-ppa -ppd=$(@:.o=.d)'
2699         _cflags_speed='-O3 -mf=5'
2700         _cflags_size='-O3 -mf=2'
2701         _flags_filter=tms470_flags
2702     elif $_cc -v 2>&1 | grep -q clang; then
2703         _type=clang
2704         _ident=$($_cc --version | head -n1)
2705         _depflags='-MMD'
2706         _cflags_speed='-O3'
2707         _cflags_size='-Os'
2708     elif $_cc -V 2>&1 | grep -q Sun; then
2709         _type=suncc
2710         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2711         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2712         _DEPFLAGS='-xM1 -xc99'
2713         _ldflags='-std=c99'
2714         _cflags_speed='-O5'
2715         _cflags_size='-O5 -xspace'
2716         _flags_filter=suncc_flags
2717     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2718         _type=pathscale
2719         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2720         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2721         _cflags_speed='-O2'
2722         _cflags_size='-Os'
2723         _flags_filter='filter_out -Wdisabled-optimization'
2724     elif $_cc -v 2>&1 | grep -q Open64; then
2725         _type=open64
2726         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2727         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2728         _cflags_speed='-O2'
2729         _cflags_size='-Os'
2730         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2731     elif $_cc -V 2>&1 | grep -q Portland; then
2732         _type=pgi
2733         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2734         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2735         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2736         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2737         _cflags_noopt="-O1"
2738         _flags_filter=pgi_flags
2739     elif $_cc 2>&1 | grep -q Microsoft; then
2740         _type=msvc
2741         _ident=$($cc 2>&1 | head -n1)
2742         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2743         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2744         _cflags_speed="-O2"
2745         _cflags_size="-O1"
2746         if $_cc 2>&1 | grep -q Linker; then
2747             _ld_o='-out:$@'
2748         else
2749             _ld_o='-Fe$@'
2750         fi
2751         _cc_o='-Fo$@'
2752         _cc_e='-P -Fi$@'
2753         _flags_filter=msvc_flags
2754         _ld_lib='lib%.a'
2755         _ld_path='-libpath:'
2756         _flags='-nologo'
2757         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2758         if [ $pfx = hostcc ]; then
2759             append _cflags -Dsnprintf=_snprintf
2760         fi
2761     elif $_cc 2>&1 | grep -q Intel; then
2762         _type=icl
2763         _ident=$($cc 2>&1 | head -n1)
2764         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2765         # Not only is O3 broken on 13.x+ but it is slower on all previous
2766         # versions (tested) as well.
2767         _cflags_speed="-O2"
2768         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2769         if $_cc 2>&1 | grep -q Linker; then
2770             _ld_o='-out:$@'
2771         else
2772             _ld_o='-Fe$@'
2773         fi
2774         _cc_o='-Fo$@'
2775         _cc_e='-P'
2776         _flags_filter=icl_flags
2777         _ld_lib='lib%.a'
2778         _ld_path='-libpath:'
2779         # -Qdiag-error to make icl error when seeing certain unknown arguments
2780         _flags='-nologo -Qdiag-error:4044,10157'
2781         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2782         # with MSVC which enables it by default.
2783         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2784         if [ $pfx = hostcc ]; then
2785             append _cflags -Dsnprintf=_snprintf
2786         fi
2787     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2788         _type=cparser
2789         _ident=$($_cc --version | head -n1)
2790         _depflags='-MMD'
2791         _cflags_speed='-O4'
2792         _cflags_size='-O2'
2793         _flags_filter=cparser_flags
2794     fi
2795
2796     eval ${pfx}_type=\$_type
2797     eval ${pfx}_ident=\$_ident
2798 }
2799
2800 set_ccvars(){
2801     eval ${1}_C=\${_cc_c-\${${1}_C}}
2802     eval ${1}_E=\${_cc_e-\${${1}_E}}
2803     eval ${1}_O=\${_cc_o-\${${1}_O}}
2804
2805     if [ -n "$_depflags" ]; then
2806         eval ${1}_DEPFLAGS=\$_depflags
2807     else
2808         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2809         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2810         eval DEP${1}FLAGS=\$_flags
2811     fi
2812 }
2813
2814 probe_cc cc "$cc"
2815 cflags_filter=$_flags_filter
2816 cflags_speed=$_cflags_speed
2817 cflags_size=$_cflags_size
2818 cflags_noopt=$_cflags_noopt
2819 add_cflags $_flags $_cflags
2820 cc_ldflags=$_ldflags
2821 set_ccvars CC
2822
2823 probe_cc hostcc "$host_cc"
2824 host_cflags_filter=$_flags_filter
2825 add_host_cflags  $_flags $_cflags
2826 set_ccvars HOSTCC
2827
2828 test -n "$cc_type" && enable $cc_type ||
2829     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2830
2831 : ${as_default:=$cc}
2832 : ${dep_cc_default:=$cc}
2833 : ${ld_default:=$cc}
2834 : ${host_ld_default:=$host_cc}
2835 set_default ar as dep_cc ld host_ld
2836
2837 probe_cc as "$as"
2838 asflags_filter=$_flags_filter
2839 add_asflags $_flags $_cflags
2840 set_ccvars AS
2841
2842 probe_cc ld "$ld"
2843 ldflags_filter=$_flags_filter
2844 add_ldflags $_flags $_ldflags
2845 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2846 LD_O=${_ld_o-$LD_O}
2847 LD_LIB=${_ld_lib-$LD_LIB}
2848 LD_PATH=${_ld_path-$LD_PATH}
2849
2850 probe_cc hostld "$host_ld"
2851 host_ldflags_filter=$_flags_filter
2852 add_host_ldflags $_flags $_ldflags
2853 HOSTLD_O=${_ld_o-$HOSTLD_O}
2854
2855 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2856     probe_cc depcc "$dep_cc"
2857     CCDEP=${_DEPCMD:-$DEPCMD}
2858     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2859     DEPCCFLAGS=$_flags
2860 fi
2861
2862 if $ar 2>&1 | grep -q Microsoft; then
2863     arflags="-nologo"
2864     ar_o='-out:$@'
2865 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2866     arflags="rq"
2867     ar_o='$@'
2868 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2869     arflags='-Xany -r -c'
2870     ar_o='$@'
2871 else
2872     arflags="rc"
2873     ar_o='$@'
2874 fi
2875
2876 add_cflags $extra_cflags
2877 add_asflags $extra_cflags
2878
2879 if test -n "$sysroot"; then
2880     case "$cc_type" in
2881         gcc|llvm_gcc|clang)
2882             add_cppflags --sysroot="$sysroot"
2883             add_ldflags --sysroot="$sysroot"
2884         ;;
2885         tms470)
2886             add_cppflags -I"$sysinclude"
2887             add_ldflags  --sysroot="$sysroot"
2888         ;;
2889     esac
2890 fi
2891
2892 if test "$cpu" = host; then
2893     enabled cross_compile &&
2894         die "--cpu=host makes no sense when cross-compiling."
2895
2896     case "$cc_type" in
2897         gcc|llvm_gcc)
2898             check_native(){
2899                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2900                 sed -n "/cc1.*$1=/{
2901                             s/.*$1=\\([^ ]*\\).*/\\1/
2902                             p
2903                             q
2904                         }" $TMPE
2905             }
2906             cpu=$(check_native -march || check_native -mcpu)
2907         ;;
2908     esac
2909
2910     test "${cpu:-host}" = host &&
2911         die "--cpu=host not supported with compiler $cc"
2912 fi
2913
2914 # Deal with common $arch aliases
2915 case "$arch" in
2916     aarch64|arm64)
2917         arch="aarch64"
2918     ;;
2919     arm*)
2920         arch="arm"
2921     ;;
2922     mips*|IP*)
2923         arch="mips"
2924     ;;
2925     parisc*|hppa*)
2926         arch="parisc"
2927     ;;
2928     "Power Macintosh"|ppc*|powerpc*)
2929         arch="ppc"
2930     ;;
2931     s390|s390x)
2932         arch="s390"
2933     ;;
2934     sh4|sh)
2935         arch="sh4"
2936     ;;
2937     sun4u|sparc*)
2938         arch="sparc"
2939     ;;
2940     tilegx|tile-gx)
2941         arch="tilegx"
2942     ;;
2943     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2944         arch="x86"
2945     ;;
2946 esac
2947
2948 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2949 enable $arch
2950
2951 # Add processor-specific flags
2952 if enabled aarch64; then
2953
2954     case $cpu in
2955         armv*)
2956             cpuflags="-march=$cpu"
2957         ;;
2958         *)
2959             cpuflags="-mcpu=$cpu"
2960         ;;
2961     esac
2962
2963 elif enabled alpha; then
2964
2965     cpuflags="-mcpu=$cpu"
2966
2967 elif enabled arm; then
2968
2969     check_arm_arch() {
2970         check_cpp_condition stddef.h \
2971             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2972             $cpuflags
2973     }
2974
2975     probe_arm_arch() {
2976         if   check_arm_arch 4;        then echo armv4;
2977         elif check_arm_arch 4T;       then echo armv4t;
2978         elif check_arm_arch 5;        then echo armv5;
2979         elif check_arm_arch 5E;       then echo armv5e;
2980         elif check_arm_arch 5T;       then echo armv5t;
2981         elif check_arm_arch 5TE;      then echo armv5te;
2982         elif check_arm_arch 5TEJ;     then echo armv5te;
2983         elif check_arm_arch 6;        then echo armv6;
2984         elif check_arm_arch 6J;       then echo armv6j;
2985         elif check_arm_arch 6K;       then echo armv6k;
2986         elif check_arm_arch 6Z;       then echo armv6z;
2987         elif check_arm_arch 6ZK;      then echo armv6zk;
2988         elif check_arm_arch 6T2;      then echo armv6t2;
2989         elif check_arm_arch 7;        then echo armv7;
2990         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2991         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2992         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2993         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2994         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2995         fi
2996     }
2997
2998     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2999
3000     case $cpu in
3001         armv*)
3002             cpuflags="-march=$cpu"
3003             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3004         ;;
3005         *)
3006             cpuflags="-mcpu=$cpu"
3007             case $cpu in
3008                 cortex-a*)                               subarch=armv7a  ;;
3009                 cortex-r*)                               subarch=armv7r  ;;
3010                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3011                 arm11*)                                  subarch=armv6   ;;
3012                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3013                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3014                 *)                             subarch=$(probe_arm_arch) ;;
3015             esac
3016         ;;
3017     esac
3018
3019     case "$subarch" in
3020         armv5t*)    enable fast_clz                ;;
3021         armv[6-8]*) enable fast_clz fast_unaligned ;;
3022     esac
3023
3024 elif enabled avr32; then
3025
3026     case $cpu in
3027         ap7[02]0[0-2])
3028             subarch="avr32_ap"
3029             cpuflags="-mpart=$cpu"
3030         ;;
3031         ap)
3032             subarch="avr32_ap"
3033             cpuflags="-march=$cpu"
3034         ;;
3035         uc3[ab]*)
3036             subarch="avr32_uc"
3037             cpuflags="-mcpu=$cpu"
3038         ;;
3039         uc)
3040             subarch="avr32_uc"
3041             cpuflags="-march=$cpu"
3042         ;;
3043     esac
3044
3045 elif enabled bfin; then
3046
3047     cpuflags="-mcpu=$cpu"
3048
3049 elif enabled mips; then
3050
3051     cpuflags="-march=$cpu"
3052
3053 elif enabled ppc; then
3054
3055     case $(tolower $cpu) in
3056         601|ppc601|powerpc601)
3057             cpuflags="-mcpu=601"
3058             disable altivec
3059         ;;
3060         603*|ppc603*|powerpc603*)
3061             cpuflags="-mcpu=603"
3062             disable altivec
3063         ;;
3064         604*|ppc604*|powerpc604*)
3065             cpuflags="-mcpu=604"
3066             disable altivec
3067         ;;
3068         g3|75*|ppc75*|powerpc75*)
3069             cpuflags="-mcpu=750"
3070             disable altivec
3071         ;;
3072         g4|745*|ppc745*|powerpc745*)
3073             cpuflags="-mcpu=7450"
3074         ;;
3075         74*|ppc74*|powerpc74*)
3076             cpuflags="-mcpu=7400"
3077         ;;
3078         g5|970|ppc970|powerpc970)
3079             cpuflags="-mcpu=970"
3080         ;;
3081         power[3-7]*)
3082             cpuflags="-mcpu=$cpu"
3083         ;;
3084         cell)
3085             cpuflags="-mcpu=cell"
3086             enable ldbrx
3087         ;;
3088         e500mc)
3089             cpuflags="-mcpu=e500mc"
3090             disable altivec
3091         ;;
3092         e500v2)
3093             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3094             disable altivec
3095         ;;
3096         e500)
3097             cpuflags="-mcpu=8540 -mhard-float"
3098             disable altivec
3099         ;;
3100     esac
3101
3102 elif enabled sparc; then
3103
3104     case $cpu in
3105         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3106             cpuflags="-mcpu=$cpu"
3107             disable vis
3108         ;;
3109         ultrasparc*|niagara[234])
3110             cpuflags="-mcpu=$cpu"
3111         ;;
3112     esac
3113
3114 elif enabled x86; then
3115
3116     case $cpu in
3117         i[345]86|pentium)
3118             cpuflags="-march=$cpu"
3119             disable mmx
3120         ;;
3121         # targets that do NOT support nopl and conditional mov (cmov)
3122         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3123             cpuflags="-march=$cpu"
3124             disable i686
3125         ;;
3126         # targets that do support nopl and conditional mov (cmov)
3127         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3128             cpuflags="-march=$cpu"
3129             enable i686
3130             enable fast_cmov
3131         ;;
3132         # targets that do support conditional mov but on which it's slow
3133         pentium4|pentium4m|prescott|nocona)
3134             cpuflags="-march=$cpu"
3135             enable i686
3136             disable fast_cmov
3137         ;;
3138     esac
3139
3140 fi
3141
3142 if [ "$cpu" != generic ]; then
3143     add_cflags  $cpuflags
3144     add_asflags $cpuflags
3145 fi
3146
3147 # compiler sanity check
3148 check_exec <<EOF
3149 int main(void){ return 0; }
3150 EOF
3151 if test "$?" != 0; then
3152     echo "$cc is unable to create an executable file."
3153     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3154         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3155         echo "Only do this if you know what cross compiling means."
3156     fi
3157     die "C compiler test failed."
3158 fi
3159
3160 add_cppflags -D_ISOC99_SOURCE
3161 check_cflags -std=c99
3162 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3163 #include <stdlib.h>
3164 EOF
3165 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3166 #include <stdlib.h>
3167 EOF
3168
3169 check_host_cflags -std=c99
3170 check_host_cflags -Wall
3171
3172 check_64bit(){
3173     arch32=$1
3174     arch64=$2
3175     expr=$3
3176     check_code cc "" "int test[2*($expr) - 1]" &&
3177         subarch=$arch64 || subarch=$arch32
3178 }
3179
3180 case "$arch" in
3181     aarch64|alpha|ia64)
3182         spic=$shared
3183     ;;
3184     mips)
3185         check_64bit mips mips64 '_MIPS_SIM > 1'
3186         spic=$shared
3187     ;;
3188     parisc)
3189         check_64bit parisc parisc64 'sizeof(void *) > 4'
3190         spic=$shared
3191     ;;
3192     ppc)
3193         check_64bit ppc ppc64 'sizeof(void *) > 4'
3194         spic=$shared
3195     ;;
3196     sparc)
3197         check_64bit sparc sparc64 'sizeof(void *) > 4'
3198         spic=$shared
3199     ;;
3200     x86)
3201         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3202         if test "$subarch" = "x86_64"; then
3203             spic=$shared
3204         fi
3205     ;;
3206 esac
3207
3208 enable $subarch
3209 enabled spic && enable_weak pic
3210
3211 # OS specific
3212 case $target_os in
3213     aix)
3214         SHFLAGS=-shared
3215         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3216         enabled shared && add_ldflags -Wl,-brtl
3217         ;;
3218     haiku)
3219         prefix_default="/boot/common"
3220         network_extralibs="-lnetwork"
3221         host_libs=
3222         ;;
3223     sunos)
3224         SHFLAGS='-shared -Wl,-h,$$(@F)'
3225         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3226         network_extralibs="-lsocket -lnsl"
3227         # When using suncc to build, the Solaris linker will mark
3228         # an executable with each instruction set encountered by
3229         # the Solaris assembler.  As our libraries contain their own
3230         # guards for processor-specific code, instead suppress
3231         # generation of the HWCAPS ELF section on Solaris x86 only.
3232         enabled_all suncc x86 &&
3233             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3234             add_ldflags -Wl,-M,mapfile
3235         nm_default='nm -P -g'
3236         ;;
3237     netbsd)
3238         disable symver
3239         oss_indev_extralibs="-lossaudio"
3240         oss_outdev_extralibs="-lossaudio"
3241         ;;
3242     openbsd|bitrig)
3243         disable symver
3244         SHFLAGS='-shared'
3245         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3246         SLIB_INSTALL_LINKS=
3247         oss_indev_extralibs="-lossaudio"
3248         oss_outdev_extralibs="-lossaudio"
3249         ;;
3250     dragonfly)
3251         disable symver
3252         ;;
3253     freebsd)
3254         ;;
3255     bsd/os)
3256         add_extralibs -lpoll -lgnugetopt
3257         ;;
3258     darwin)
3259         gas="gas-preprocessor.pl $cc"
3260         enabled ppc && add_asflags -force_cpusubtype_ALL
3261         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3262         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3263         add_ldflags -Wl,-dynamic,-search_paths_first
3264         SLIBSUF=".dylib"
3265         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3266         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3267         objformat="macho"
3268         enabled x86_64 && objformat="macho64"
3269         enabled_any pic shared ||
3270             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3271         ;;
3272     mingw32*)
3273         if test $target_os = "mingw32ce"; then
3274             disable network
3275         else
3276             target_os=mingw32
3277         fi
3278         LIBTARGET=i386
3279         if enabled x86_64; then
3280             LIBTARGET="i386:x86-64"
3281         elif enabled arm; then
3282             LIBTARGET=arm-wince
3283         fi
3284         check_ldflags -Wl,--nxcompat
3285         check_ldflags -Wl,--dynamicbase
3286         shlibdir_default="$bindir_default"
3287         SLIBPREF=""
3288         SLIBSUF=".dll"
3289         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3290         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3291         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3292         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3293         SLIB_INSTALL_LINKS=
3294         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3295         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3296         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3297         objformat="win32"
3298         dlltool="${cross_prefix}dlltool"
3299         ranlib=:
3300         enable dos_paths
3301         ;;
3302     win32|win64)
3303         disable symver
3304         if enabled shared; then
3305             # Link to the import library instead of the normal static library
3306             # for shared libs.
3307             LD_LIB='%.lib'
3308             # Cannot build both shared and static libs with MSVC or icl.
3309             disable static
3310         fi
3311         shlibdir_default="$bindir_default"
3312         SLIBPREF=""
3313         SLIBSUF=".dll"
3314         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3315         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3316         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3317         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3318         SLIB_INSTALL_LINKS=
3319         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3320         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3321         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3322         objformat="win32"
3323         ranlib=:
3324         enable dos_paths
3325         ;;
3326     cygwin*)
3327         target_os=cygwin
3328         shlibdir_default="$bindir_default"
3329         SLIBPREF="cyg"
3330         SLIBSUF=".dll"
3331         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3332         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3333         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3334         SLIB_INSTALL_LINKS=
3335         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3336         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3337         objformat="win32"
3338         enable dos_paths
3339         ;;
3340     *-dos|freedos|opendos)
3341         network_extralibs="-lsocket"
3342         objformat="coff"
3343         enable dos_paths
3344         add_cppflags -U__STRICT_ANSI__
3345         ;;
3346     linux)
3347         enable dv1394
3348         ;;
3349     irix*)
3350         target_os=irix
3351         ranlib="echo ignoring ranlib"
3352         ;;
3353     os/2*)
3354         ln_s="cp -f"
3355         objformat="aout"
3356         add_cppflags -D_GNU_SOURCE
3357         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3358         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3359         LIBSUF="_s.a"
3360         SLIBPREF=""
3361         SLIBSUF=".dll"
3362         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3363         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3364         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3365             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3366             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3367             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3368             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3369             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3370         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3371             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3372         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3373         enable dos_paths
3374         ;;
3375     gnu/kfreebsd)
3376         add_cppflags -D_BSD_SOURCE
3377         ;;
3378     gnu)
3379         ;;
3380     qnx)
3381         add_cppflags -D_QNX_SOURCE
3382         network_extralibs="-lsocket"
3383         ;;
3384     symbian)
3385         SLIBSUF=".dll"
3386         enable dos_paths
3387         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3388         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3389         add_ldflags -Wl,--target1-abs,--no-undefined \
3390                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3391                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3392         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3393                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3394                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3395         ;;
3396     osf1)
3397         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3398         ;;
3399     minix)
3400         ;;
3401     plan9)
3402         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3403                      -D_REENTRANT_SOURCE        \
3404                      -D_RESEARCH_SOURCE         \
3405                      -DFD_SETSIZE=96            \
3406                      -DHAVE_SOCK_OPTS
3407         add_compat strtod.o strtod=avpriv_strtod
3408         network_extralibs='-lbsd'
3409         exeobjs=compat/plan9/main.o
3410         disable avserver
3411         cp_f='cp'
3412         ;;
3413     none)
3414         ;;
3415     *)
3416         die "Unknown OS '$target_os'."
3417         ;;
3418 esac
3419
3420 # determine libc flavour
3421
3422 probe_libc(){
3423     pfx=$1
3424     pfx_no_=${pfx%_}
3425     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3426     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3427         eval ${pfx}libc_type=uclibc
3428         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3429     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3430         eval ${pfx}libc_type=glibc
3431         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3432     # MinGW headers can be installed on Cygwin, so check for newlib first.
3433     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3434         eval ${pfx}libc_type=newlib
3435         add_${pfx}cppflags -U__STRICT_ANSI__
3436     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3437     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3438         eval ${pfx}libc_type=mingw64
3439         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3440         eval test \$${pfx_no_}cc_type = "gcc" &&
3441             add_${pfx}cppflags -D__printf__=__gnu_printf__
3442     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
3443          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3444         eval ${pfx}libc_type=mingw32
3445         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3446             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3447             die "ERROR: MinGW32 runtime version must be >= 3.15."
3448         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
3449         eval test \$${pfx_no_}cc_type = "gcc" &&
3450             add_${pfx}cppflags -D__printf__=__gnu_printf__
3451     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3452         eval ${pfx}libc_type=msvcrt
3453         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3454         # 0x601 by default unless something else is set by the user.
3455         # This can easily lead to us detecting functions only present
3456         # in such new versions and producing binaries requiring windows 7.0.
3457         # Therefore explicitly set the default to XP unless the user has
3458         # set something else on the command line.
3459         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3460             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3461     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3462         eval ${pfx}libc_type=klibc
3463     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3464         eval ${pfx}libc_type=bionic
3465     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
3466         eval ${pfx}libc_type=solaris
3467         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3468     fi
3469 }
3470
3471 probe_libc
3472 test -n "$libc_type" && enable libc_$libc_type
3473 probe_libc host_
3474 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3475
3476 case $libc_type in
3477     bionic)
3478         add_compat strtod.o strtod=avpriv_strtod
3479         ;;
3480     msvcrt)
3481         add_compat strtod.o strtod=avpriv_strtod
3482         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3483                                      _snprintf=avpriv_snprintf  \
3484                                      vsnprintf=avpriv_vsnprintf
3485         ;;
3486 esac
3487
3488 # hacks for compiler/libc/os combinations
3489
3490 if enabled_all tms470 libc_glibc; then
3491     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3492     add_cppflags -D__USER_LABEL_PREFIX__=
3493     add_cppflags -D__builtin_memset=memset
3494     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3495     add_cflags   -pds=48    # incompatible redefinition of macro
3496 fi
3497
3498 if enabled_all ccc libc_glibc; then
3499     add_ldflags -Wl,-z,now  # calls to libots crash without this
3500 fi
3501
3502 esc(){
3503     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3504 }
3505
3506 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3507
3508 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3509
3510 set_default $PATHS_LIST
3511 set_default nm
3512
3513 # we need to build at least one lib type
3514 if ! enabled_any static shared; then
3515     cat <<EOF
3516 At least one library type must be built.
3517 Specify --enable-static to build the static libraries or --enable-shared to
3518 build the shared libraries as well. To only build the shared libraries specify
3519 --disable-static in addition to --enable-shared.
3520 EOF
3521     exit 1;
3522 fi
3523
3524 die_license_disabled() {
3525     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3526 }
3527
3528 die_license_disabled gpl libcdio
3529 die_license_disabled gpl libx264
3530 die_license_disabled gpl libxavs
3531 die_license_disabled gpl libxvid
3532 die_license_disabled gpl x11grab
3533
3534 die_license_disabled nonfree libfaac
3535 die_license_disabled nonfree libfdk_aac
3536 die_license_disabled nonfree openssl
3537
3538 die_license_disabled version3 libopencore_amrnb
3539 die_license_disabled version3 libopencore_amrwb
3540 die_license_disabled version3 libvo_aacenc
3541 die_license_disabled version3 libvo_amrwbenc
3542
3543 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3544
3545 disabled optimizations || check_cflags -fomit-frame-pointer
3546
3547 enable_weak_pic() {
3548     disabled pic && return
3549     enable pic
3550     add_cppflags -DPIC
3551     case "$target_os" in
3552     mingw*|cygwin*)
3553         ;;
3554     *)
3555         add_cflags -fPIC
3556         ;;
3557     esac
3558     add_asflags  -fPIC
3559 }
3560
3561 enabled pic && enable_weak_pic
3562
3563 check_cc <<EOF || die "Symbol mangling check failed."
3564 int ff_extern;
3565 EOF
3566 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3567 extern_prefix=${sym%%ff_extern*}
3568
3569 check_cc <<EOF && enable_weak inline_asm
3570 void foo(void) { __asm__ volatile ("" ::); }
3571 EOF
3572
3573 _restrict=
3574 for restrict_keyword in restrict __restrict__ __restrict; do
3575     check_cc <<EOF && _restrict=$restrict_keyword && break
3576 void foo(char * $restrict_keyword p);
3577 EOF
3578 done
3579
3580 check_cc <<EOF && enable pragma_deprecated
3581 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3582 EOF
3583
3584 check_cc <<EOF && enable attribute_packed
3585 struct { int x; } __attribute__((packed)) x;
3586 EOF
3587
3588 check_cc <<EOF && enable attribute_may_alias
3589 union { int x; } __attribute__((may_alias)) x;
3590 EOF
3591
3592 check_cc <<EOF || die "endian test failed"
3593 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3594 EOF
3595 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3596
3597 check_inline_asm inline_asm_labels '"1:\n"'
3598
3599 if enabled alpha; then
3600
3601     check_cflags -mieee
3602
3603 elif enabled arm; then
3604
3605     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3606     enabled thumb && check_cflags -mthumb || check_cflags -marm
3607     nogas=die
3608
3609     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3610         enable vfp_args
3611     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3612         case "${cross_prefix:-$cc}" in
3613             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3614             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3615 __asm__ (".eabi_attribute 28, 1");
3616 int main(void) { return 0; }
3617 EOF
3618         esac
3619         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3620     fi
3621
3622     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3623     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3624     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3625     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3626     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3627     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3628
3629     [ $target_os = linux ] ||
3630         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3631             $ARCH_EXT_LIST_ARM
3632
3633     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3634     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3635
3636     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3637
3638 elif enabled mips; then
3639
3640     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3641
3642 elif enabled parisc; then
3643
3644     if enabled gcc; then
3645         case $($cc -dumpversion) in
3646             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3647         esac
3648     fi
3649
3650 elif enabled ppc; then
3651
3652     enable local_aligned_8 local_aligned_16
3653
3654     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3655     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3656     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3657     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3658
3659     # AltiVec flags: The FSF version of GCC differs from the Apple version
3660     if enabled altivec; then
3661         nogas=warn
3662         check_cflags -maltivec -mabi=altivec &&
3663         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3664         check_cflags -faltivec
3665
3666         # check if our compiler supports Motorola AltiVec C API
3667         check_cc <<EOF || disable altivec
3668 $inc_altivec_h
3669 int main(void) {
3670     vector signed int v1 = (vector signed int) { 0 };
3671     vector signed int v2 = (vector signed int) { 1 };
3672     v1 = vec_add(v1, v2);
3673     return 0;
3674 }
3675 EOF
3676
3677         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3678     fi
3679
3680 elif enabled sparc; then
3681
3682     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3683
3684 elif enabled x86; then
3685
3686     check_builtin rdtsc    intrin.h   "__rdtsc()"
3687     check_builtin mm_empty mmintrin.h "_mm_empty()"
3688
3689     enable local_aligned_8 local_aligned_16
3690
3691     # check whether EBP is available on x86
3692     # As 'i' is stored on the stack, this program will crash
3693     # if the base pointer is used to access it because the
3694     # base pointer is cleared in the inline assembly code.
3695     check_exec_crash <<EOF && enable ebp_available
3696 volatile int i=0;
3697 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3698 return i;
3699 EOF
3700
3701     # check whether EBX is available on x86
3702     check_inline_asm ebx_available '""::"b"(0)' &&
3703         check_inline_asm ebx_available '"":::"%ebx"'
3704
3705     # check whether xmm clobbers are supported
3706     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3707
3708     # check whether binutils is new enough to compile SSSE3/MMXEXT
3709     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3710     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3711
3712     if ! disabled_any asm mmx yasm; then
3713         if check_cmd $yasmexe --version; then
3714             enabled x86_64 && yasm_extra="-m amd64"
3715             yasm_debug="-g dwarf2"
3716         elif check_cmd nasm -v; then
3717             yasmexe=nasm
3718             yasm_debug="-g -F dwarf"
3719             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3720         fi
3721
3722         YASMFLAGS="-f $objformat $yasm_extra"
3723         enabled pic               && append YASMFLAGS "-DPIC"
3724         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3725         case "$objformat" in
3726             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3727         esac
3728
3729         check_yasm "movbe ecx, [5]" && enable yasm ||
3730             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3731         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3732         check_yasm "CPU amdnop" && enable cpunop
3733     fi
3734
3735     case "$cpu" in
3736         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3737             disable fast_clz
3738         ;;
3739     esac
3740
3741 fi
3742
3743 if enabled asm; then
3744     as=${gas:=$as}
3745     check_as <<EOF && enable gnu_as || \
3746         $nogas "GNU assembler not found, install gas-preprocessor"
3747 .macro m n
3748 \n: .int 0
3749 .endm
3750 m x
3751 EOF
3752 fi
3753
3754 check_ldflags -Wl,--as-needed
3755
3756 if check_func dlopen; then
3757     ldl=
3758 elif check_func dlopen -ldl; then
3759     ldl=-ldl
3760 fi
3761
3762 if ! disabled network; then
3763     check_type "sys/types.h sys/socket.h" socklen_t
3764     check_type netdb.h "struct addrinfo"
3765     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3766     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3767     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3768     check_type netinet/in.h "struct sockaddr_in6"
3769     check_type poll.h "struct pollfd"
3770     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3771     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3772     check_type netinet/sctp.h "struct sctp_event_subscribe"
3773     check_func getaddrinfo $network_extralibs
3774     check_func getservbyport $network_extralibs
3775     # Prefer arpa/inet.h over winsock2
3776     if check_header arpa/inet.h ; then
3777         check_func closesocket
3778     elif check_header winsock2.h ; then
3779         check_func_headers winsock2.h closesocket -lws2 &&
3780             network_extralibs="-lws2" ||
3781         { check_func_headers winsock2.h closesocket -lws2_32 &&
3782             network_extralibs="-lws2_32"; } || disable winsock2_h network
3783         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3784         check_type ws2tcpip.h socklen_t
3785         check_type ws2tcpip.h "struct addrinfo"
3786         check_type ws2tcpip.h "struct group_source_req"
3787         check_type ws2tcpip.h "struct ip_mreq_source"
3788         check_type ws2tcpip.h "struct ipv6_mreq"
3789         check_type winsock2.h "struct pollfd"
3790         check_type ws2tcpip.h "struct sockaddr_in6"
3791         check_type ws2tcpip.h "struct sockaddr_storage"
3792         check_struct winsock2.h "struct sockaddr" sa_len
3793     else
3794         disable network
3795     fi
3796 fi
3797
3798 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3799 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3800
3801 check_func  fcntl
3802 check_func  fork
3803 check_func_headers stdlib.h getenv
3804 check_func  gethrtime
3805 check_func  getopt
3806 check_func  getrusage
3807 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3808 check_func  gettimeofday
3809 check_func  inet_aton $network_extralibs
3810 check_func  isatty
3811 check_func  localtime_r
3812 check_func  ${malloc_prefix}memalign            && enable memalign
3813 check_func  mkstemp
3814 check_func  mmap
3815 check_func  mprotect
3816 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3817 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3818 check_func  setrlimit
3819 check_func  strerror_r
3820 check_func  strptime
3821 check_func  strtok_r
3822 check_func  sched_getaffinity
3823 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3824 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3825 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3826 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3827 check_func  sysconf
3828 check_func  sysctl
3829 check_func  usleep
3830 check_func_headers io.h setmode
3831 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3832 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3833 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3834 check_func_headers windows.h GetProcessAffinityMask
3835 check_func_headers windows.h GetProcessTimes
3836 check_func_headers windows.h GetSystemTimeAsFileTime
3837 check_func_headers windows.h MapViewOfFile
3838 check_func_headers windows.h SetConsoleTextAttribute
3839 check_func_headers windows.h Sleep
3840 check_func_headers windows.h VirtualAlloc
3841
3842 check_header direct.h
3843 check_header dlfcn.h
3844 check_header dxva.h
3845 check_header dxva2api.h
3846 check_header io.h
3847 check_header malloc.h
3848 check_header poll.h
3849 check_header sys/mman.h
3850 check_header sys/param.h
3851 check_header sys/resource.h
3852 check_header sys/select.h
3853 check_header sys/time.h
3854 check_header sys/un.h
3855 check_header unistd.h
3856 check_header vdpau/vdpau.h
3857 check_header vdpau/vdpau_x11.h
3858 check_header VideoDecodeAcceleration/VDADecoder.h
3859 check_header windows.h
3860 check_header X11/extensions/XvMClib.h
3861
3862 if ! disabled w32threads && ! enabled pthreads; then
3863     check_func_headers "windows.h process.h" _beginthreadex &&
3864         enable w32threads || disable w32threads
3865 fi
3866
3867 # check for some common methods of building with pthread support
3868 # do this before the optional library checks as some of them require pthreads
3869 if ! disabled pthreads && ! enabled w32threads; then
3870     enable pthreads
3871     if check_func pthread_join -pthread; then
3872         add_cflags -pthread
3873         add_extralibs -pthread
3874     elif check_func pthread_join -pthreads; then
3875         add_cflags -pthreads
3876         add_extralibs -pthreads
3877     elif check_func pthread_join -lpthreadGC2; then
3878         add_extralibs -lpthreadGC2
3879     elif check_lib pthread.h pthread_join -lpthread; then
3880         :
3881     elif ! check_func pthread_join; then
3882         disable pthreads
3883     fi
3884 fi
3885
3886 for thread in $THREADS_LIST; do
3887     if enabled $thread; then
3888         test -n "$thread_type" &&
3889             die "ERROR: Only one thread type must be selected." ||
3890             thread_type="$thread"
3891     fi
3892 done
3893
3894 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3895 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3896
3897 check_lib math.h sin -lm && LIBM="-lm"
3898 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3899
3900 atan2f_args=2
3901 ldexpf_args=2
3902 powf_args=2
3903
3904 for func in $MATH_FUNCS; do
3905     eval check_mathfunc $func \${${func}_args:-1}
3906 done
3907
3908 # these are off by default, so fail if requested and not available
3909 enabled avisynth          && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3910                                { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3911                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3912 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3913 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3914 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3915 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3916 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
3917 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3918                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3919                                done || die "ERROR: libgsm not found"; }
3920 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3921 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3922 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3923 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3924 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3925 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3926 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3927 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3928 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3929 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3930 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3931 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3932 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3933 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3934 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3935 enabled libvpx            && {
3936     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3937                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3938     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3939                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3940     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3941     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3942 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3943 enabled libwebp           && require_pkg_config libwebp webp/encode.h WebPGetEncoderVersion
3944 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3945                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3946                                die "ERROR: libx264 version must be >= 0.118."; }
3947 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3948 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3949 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3950                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3951                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3952                                die "ERROR: openssl not found"; }
3953
3954 if enabled gnutls; then
3955     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3956     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3957 fi
3958
3959 # libdc1394 check
3960 if enabled libdc1394; then
3961     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3962         enable libdc1394_2; } ||
3963     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3964         enable libdc1394_1; } ||
3965     die "ERROR: No version of libdc1394 found "
3966 fi
3967
3968 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3969     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3970     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3971     enable sdl
3972 fi
3973
3974 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
3975 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3976
3977 check_header linux/fb.h
3978 check_header linux/videodev2.h
3979 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3980
3981 check_header sys/videoio.h
3982
3983 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3984 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3985 # w32api 3.12 had it defined wrong
3986 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3987
3988 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3989 { check_header dev/bktr/ioctl_meteor.h &&
3990   check_header dev/bktr/ioctl_bt848.h; } ||
3991 { check_header machine/ioctl_meteor.h &&
3992   check_header machine/ioctl_bt848.h; } ||
3993 { check_header dev/video/meteor/ioctl_meteor.h &&
3994   check_header dev/video/bktr/ioctl_bt848.h; } ||
3995 check_header dev/ic/bt8xx.h
3996
3997 check_header sndio.h
3998 check_header sys/soundcard.h
3999 check_header soundcard.h
4000
4001 enabled_any alsa_indev alsa_outdev &&
4002     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
4003
4004 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
4005     check_func jack_port_get_latency_range -ljack
4006
4007 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
4008
4009 if enabled libcdio; then
4010     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
4011     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
4012 fi
4013
4014 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
4015
4016 enabled x11grab                                           &&
4017 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
4018 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
4019 { enabled xlib || die "ERROR: Xlib not found"; }
4020
4021 enabled vdpau &&
4022     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
4023     disable vdpau
4024
4025 enabled vdpau && enabled xlib &&
4026     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4027     enable vdpau_x11
4028
4029 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4030
4031 # add some useful compiler flags if supported
4032 check_cflags -Wdeclaration-after-statement
4033 check_cflags -Wall
4034 check_cflags -Wdisabled-optimization
4035 check_cflags -Wpointer-arith
4036 check_cflags -Wredundant-decls
4037 check_cflags -Wcast-qual
4038 check_cflags -Wwrite-strings
4039 check_cflags -Wtype-limits
4040 check_cflags -Wundef
4041 check_cflags -Wmissing-prototypes
4042 check_cflags -Wstrict-prototypes
4043 enabled extra_warnings && check_cflags -Winline
4044
4045 check_disable_warning(){
4046     warning_flag=-W${1#-Wno-}
4047     test_cflags $warning_flag && add_cflags $1
4048 }
4049
4050 check_disable_warning -Wno-parentheses
4051 check_disable_warning -Wno-switch
4052 check_disable_warning -Wno-format-zero-length
4053 check_disable_warning -Wno-pointer-sign
4054
4055 # add some linker flags
4056 check_ldflags -Wl,--warn-common
4057 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4058 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4059
4060 # add some strip flags
4061 # -wN '..@*' is more selective than -x, but not available everywhere.
4062 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4063
4064 enabled neon_clobber_test &&
4065     check_ldflags -Wl,--wrap,avcodec_open2              \
4066                   -Wl,--wrap,avcodec_decode_audio4      \
4067                   -Wl,--wrap,avcodec_decode_video2      \
4068                   -Wl,--wrap,avcodec_decode_subtitle2   \
4069                   -Wl,--wrap,avcodec_encode_audio2      \
4070                   -Wl,--wrap,avcodec_encode_video2      \
4071                   -Wl,--wrap,avcodec_encode_subtitle    \
4072                   -Wl,--wrap,avresample_convert ||
4073     disable neon_clobber_test
4074
4075 enabled xmm_clobber_test &&
4076     check_ldflags -Wl,--wrap,avcodec_open2              \
4077                   -Wl,--wrap,avcodec_decode_audio4      \
4078                   -Wl,--wrap,avcodec_decode_video2      \
4079                   -Wl,--wrap,avcodec_decode_subtitle2   \
4080                   -Wl,--wrap,avcodec_encode_audio2      \
4081                   -Wl,--wrap,avcodec_encode_video2      \
4082                   -Wl,--wrap,avcodec_encode_subtitle    \
4083                   -Wl,--wrap,avresample_convert         \
4084                   -Wl,--wrap,sws_scale ||
4085     disable xmm_clobber_test
4086
4087 echo "X{};" > $TMPV
4088 if test_ldflags -Wl,--version-script,$TMPV; then
4089     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4090     check_cc <<EOF && enable symver_asm_label
4091 void ff_foo(void) __asm__ ("av_foo@VERSION");
4092 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4093 EOF
4094     check_cc <<EOF && enable symver_gnu_asm
4095 __asm__(".symver ff_foo,av_foo@VERSION");
4096 void ff_foo(void) {}
4097 EOF
4098 fi
4099
4100 if [ -z "$optflags" ]; then
4101     if enabled small; then
4102         optflags=$cflags_size
4103     elif enabled optimizations; then
4104         optflags=$cflags_speed
4105     else
4106         optflags=$cflags_noopt
4107     fi
4108 fi
4109
4110 check_optflags(){
4111     check_cflags "$@"
4112     enabled lto && check_ldflags "$@"
4113 }
4114
4115
4116 if enabled lto; then
4117     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4118     check_cflags  -flto
4119     check_ldflags -flto $cpuflags
4120 fi
4121
4122 check_optflags $optflags
4123 check_optflags -fno-math-errno
4124 check_optflags -fno-signed-zeros
4125
4126 if enabled icc; then
4127     # Just warnings, no remarks
4128     check_cflags -w1
4129     # -wd: Disable following warnings
4130     # 144, 167, 556: -Wno-pointer-sign
4131     # 1292: attribute "foo" ignored
4132     # 1419: external declaration in primary source file
4133     # 10006: ignoring unknown option -fno-signed-zeros
4134     # 10148: ignoring unknown option -Wno-parentheses
4135     # 10156: ignoring option '-W'; no argument required
4136     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4137     # 11030: Warning unknown option --as-needed
4138     # 10156: ignoring option '-export'; no argument required
4139     check_ldflags -wd10156,11030
4140     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4141     enable ebp_available
4142     if enabled x86_32; then
4143         icc_version=$($cc -dumpversion)
4144         test ${icc_version%%.*} -ge 11 &&
4145             check_cflags -falign-stack=maintain-16-byte ||
4146             disable aligned_stack
4147     fi
4148 elif enabled ccc; then
4149     # disable some annoying warnings
4150     add_cflags -msg_disable bitnotint
4151     add_cflags -msg_disable mixfuncvoid
4152     add_cflags -msg_disable nonstandcast
4153     add_cflags -msg_disable unsupieee
4154 elif enabled gcc; then
4155     check_optflags -fno-tree-vectorize
4156     check_cflags -Werror=implicit-function-declaration
4157     check_cflags -Werror=missing-prototypes
4158     check_cflags -Werror=return-type
4159     check_cflags -Werror=declaration-after-statement
4160     check_cflags -Werror=vla
4161     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4162 elif enabled llvm_gcc; then
4163     check_cflags -mllvm -stack-alignment=16
4164 elif enabled clang; then
4165     check_cflags -mllvm -stack-alignment=16
4166     check_cflags -Qunused-arguments
4167     check_cflags -Werror=implicit-function-declaration
4168     check_cflags -Werror=missing-prototypes
4169     check_cflags -Werror=return-type
4170 elif enabled cparser; then
4171     add_cflags -Wno-missing-variable-declarations
4172     add_cflags -Wno-empty-statement
4173 elif enabled armcc; then
4174     # 2523: use of inline assembler is deprecated
4175     add_cflags -W${armcc_opt},--diag_suppress=2523
4176     add_cflags -W${armcc_opt},--diag_suppress=1207
4177     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4178     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4179     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4180     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4181 elif enabled tms470; then
4182     add_cflags -pds=824 -pds=837
4183     disable inline_asm
4184 elif enabled pathscale; then
4185     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4186 elif enabled_any msvc icl; then
4187     enabled x86_32 && disable aligned_stack
4188     enabled_all x86_32 debug && add_cflags -Oy-
4189     enabled debug && add_ldflags -debug
4190     enable pragma_deprecated
4191     if enabled icl; then
4192         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4193         # (correctly) on icl 13.x.
4194         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4195             add_cflags -Qansi-alias
4196         # icl will pass the inline asm tests but inline asm is currently
4197         # not supported (build will fail)
4198         disable inline_asm
4199     fi
4200 fi
4201
4202 case $target_os in
4203     osf1)
4204         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4205     ;;
4206     plan9)
4207         add_cppflags -Dmain=plan9_main
4208     ;;
4209 esac
4210
4211 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4212
4213 check_deps $CONFIG_LIST       \
4214            $CONFIG_EXTRA      \
4215            $HAVE_LIST         \
4216            $ALL_COMPONENTS    \
4217
4218 ! enabled_any memalign posix_memalign aligned_malloc &&
4219     enabled_any $need_memalign && enable memalign_hack
4220
4221 echo "install prefix            $prefix"
4222 echo "source path               $source_path"
4223 echo "C compiler                $cc"
4224 echo "C library                 $libc_type"
4225 if test "$host_cc" != "$cc"; then
4226     echo "host C compiler           $host_cc"
4227     echo "host C library            $host_libc_type"
4228 fi
4229 echo "ARCH                      $arch ($cpu)"
4230 if test "$build_suffix" != ""; then
4231     echo "build suffix              $build_suffix"
4232 fi
4233 if test "$extra_version" != ""; then
4234     echo "version string suffix     $extra_version"
4235 fi
4236 echo "big-endian                ${bigendian-no}"
4237 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4238 if enabled x86; then
4239     echo "${yasmexe}                      ${yasm-no}"
4240     echo "MMX enabled               ${mmx-no}"
4241     echo "MMXEXT enabled            ${mmxext-no}"
4242     echo "3DNow! enabled            ${amd3dnow-no}"
4243     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4244     echo "SSE enabled               ${sse-no}"
4245     echo "SSSE3 enabled             ${ssse3-no}"
4246     echo "AVX enabled               ${avx-no}"
4247     echo "FMA4 enabled              ${fma4-no}"
4248     echo "i686 features enabled     ${i686-no}"
4249     echo "CMOV is fast              ${fast_cmov-no}"
4250     echo "EBX available             ${ebx_available-no}"
4251     echo "EBP available             ${ebp_available-no}"
4252 fi
4253 if enabled arm; then
4254     echo "ARMv5TE enabled           ${armv5te-no}"
4255     echo "ARMv6 enabled             ${armv6-no}"
4256     echo "ARMv6T2 enabled           ${armv6t2-no}"
4257     echo "VFP enabled               ${vfp-no}"
4258     echo "NEON enabled              ${neon-no}"
4259 fi
4260 if enabled ppc; then
4261     echo "AltiVec enabled           ${altivec-no}"
4262     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4263     echo "dcbzl available           ${dcbzl-no}"
4264 fi
4265 if enabled sparc; then
4266     echo "VIS enabled               ${vis-no}"
4267 fi
4268 echo "debug symbols             ${debug-no}"
4269 echo "optimize for size         ${small-no}"
4270 echo "optimizations             ${optimizations-no}"
4271 echo "static                    ${static-no}"
4272 echo "shared                    ${shared-no}"
4273 echo "new filter support        ${avfilter-no}"
4274 echo "network support           ${network-no}"
4275 echo "threading support         ${thread_type-no}"
4276 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4277 echo "SDL support               ${sdl-no}"
4278 test -n "$random_seed" &&
4279     echo "random seed               ${random_seed}"
4280 echo
4281
4282 echo "External libraries:"
4283 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4284 echo
4285
4286 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4287     echo "Enabled ${type}s:"
4288     eval list=\$$(toupper $type)_LIST
4289     print_enabled '_*' $list | print_3_columns
4290     echo
4291 done
4292
4293 license="LGPL version 2.1 or later"
4294 if enabled nonfree; then
4295     license="nonfree and unredistributable"
4296 elif enabled gplv3; then
4297     license="GPL version 3 or later"
4298 elif enabled lgplv3; then
4299     license="LGPL version 3 or later"
4300 elif enabled gpl; then
4301     license="GPL version 2 or later"
4302 fi
4303
4304 echo "License: $license"
4305
4306 echo "Creating config.mak and config.h..."
4307
4308 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4309
4310 config_files="$TMPH config.mak"
4311
4312 cat > config.mak <<EOF
4313 # Automatically generated by configure - do not modify!
4314 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4315 prefix=$prefix
4316 LIBDIR=\$(DESTDIR)$libdir
4317 SHLIBDIR=\$(DESTDIR)$shlibdir
4318 INCDIR=\$(DESTDIR)$incdir
4319 BINDIR=\$(DESTDIR)$bindir
4320 DATADIR=\$(DESTDIR)$datadir
4321 DOCDIR=\$(DESTDIR)$docdir
4322 MANDIR=\$(DESTDIR)$mandir
4323 SRC_PATH=$source_path
4324 CC_IDENT=$cc_ident
4325 ARCH=$arch
4326 CC=$cc
4327 AS=$as
4328 LD=$ld
4329 DEPCC=$dep_cc
4330 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4331 DEPAS=$as
4332 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4333 YASM=$yasmexe
4334 DEPYASM=$yasmexe
4335 AR=$ar
4336 ARFLAGS=$arflags
4337 AR_O=$ar_o
4338 RANLIB=$ranlib
4339 STRIP=$strip
4340 LN_S=$ln_s
4341 CPPFLAGS=$CPPFLAGS
4342 CFLAGS=$CFLAGS
4343 ASFLAGS=$ASFLAGS
4344 AS_C=$AS_C
4345 AS_O=$AS_O
4346 CC_C=$CC_C
4347 CC_E=$CC_E
4348 CC_O=$CC_O
4349 LD_O=$LD_O
4350 LD_LIB=$LD_LIB
4351 LD_PATH=$LD_PATH
4352 DLLTOOL=$dlltool
4353 LDFLAGS=$LDFLAGS
4354 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4355 STRIPFLAGS=$STRIPFLAGS
4356 YASMFLAGS=$YASMFLAGS
4357 BUILDSUF=$build_suffix
4358 FULLNAME=$FULLNAME
4359 LIBPREF=$LIBPREF
4360 LIBSUF=$LIBSUF
4361 LIBNAME=$LIBNAME
4362 SLIBPREF=$SLIBPREF
4363 SLIBSUF=$SLIBSUF
4364 EXESUF=$EXESUF
4365 EXTRA_VERSION=$extra_version
4366 CCDEP=$CCDEP
4367 CCDEP_FLAGS=$CCDEP_FLAGS
4368 ASDEP=$ASDEP
4369 ASDEP_FLAGS=$ASDEP_FLAGS
4370 CC_DEPFLAGS=$CC_DEPFLAGS
4371 AS_DEPFLAGS=$AS_DEPFLAGS
4372 HOSTCC=$host_cc
4373 HOSTLD=$host_ld
4374 HOSTCFLAGS=$host_cflags
4375 HOSTCPPFLAGS=$host_cppflags
4376 HOSTEXESUF=$HOSTEXESUF
4377 HOSTLDFLAGS=$host_ldflags
4378 HOSTLIBS=$host_libs
4379 DEPHOSTCC=$host_cc
4380 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4381 HOSTCCDEP=$HOSTCCDEP
4382 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4383 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4384 HOSTCC_C=$HOSTCC_C
4385 HOSTCC_O=$HOSTCC_O
4386 HOSTLD_O=$HOSTLD_O
4387 TARGET_EXEC=$target_exec $target_exec_args
4388 TARGET_PATH=$target_path
4389 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4390 LIBS-avplay=$sdl_libs
4391 CFLAGS-avplay=$sdl_cflags
4392 ZLIB=$($ldflags_filter -lz)
4393 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4394 EXTRALIBS=$extralibs
4395 COMPAT_OBJS=$compat_objs
4396 EXEOBJS=$exeobjs
4397 INSTALL=install
4398 LIBTARGET=${LIBTARGET}
4399 SLIBNAME=${SLIBNAME}
4400 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4401 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4402 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4403 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4404 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4405 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4406 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4407 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4408 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4409 EOF
4410
4411 get_version(){
4412     lcname=lib${1}
4413     name=$(toupper $lcname)
4414     file=$source_path/$lcname/version.h
4415     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4416     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4417     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4418     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4419     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4420 }
4421
4422 map 'get_version $v' $LIBRARY_LIST
4423
4424 cat > $TMPH <<EOF
4425 /* Automatically generated by configure - do not modify! */
4426 #ifndef LIBAV_CONFIG_H
4427 #define LIBAV_CONFIG_H
4428 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4429 #define LIBAV_LICENSE "$(c_escape $license)"
4430 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4431 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4432 #define restrict $_restrict
4433 #define EXTERN_PREFIX "${extern_prefix}"
4434 #define EXTERN_ASM ${extern_prefix}
4435 #define SLIBSUF "$SLIBSUF"
4436 EOF
4437
4438 test -n "$malloc_prefix" &&
4439     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4440
4441 if enabled yasm; then
4442     append config_files $TMPASM
4443     printf '' >$TMPASM
4444 fi
4445
4446 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4447
4448 print_config ARCH_   "$config_files" $ARCH_LIST
4449 print_config HAVE_   "$config_files" $HAVE_LIST
4450 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4451                                      $CONFIG_EXTRA      \
4452                                      $ALL_COMPONENTS    \
4453
4454 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4455
4456 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4457 cp_if_changed $TMPH config.h
4458 touch .config
4459
4460 enabled yasm && cp_if_changed $TMPASM config.asm
4461
4462 cat > $TMPH <<EOF
4463 /* Generated by ffconf */
4464 #ifndef AVUTIL_AVCONFIG_H
4465 #define AVUTIL_AVCONFIG_H
4466 EOF
4467
4468 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4469
4470 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4471
4472 cp_if_changed $TMPH libavutil/avconfig.h
4473
4474 test -n "$WARNINGS" && printf "\n$WARNINGS"
4475
4476 # build pkg-config files
4477
4478 pkgconfig_generate(){
4479     name=$1
4480     shortname=${name#lib}${build_suffix}
4481     comment=$2
4482     version=$3
4483     libs=$4
4484     requires=$5
4485     enabled ${name#lib} || return 0
4486     mkdir -p $name
4487     cat <<EOF > $name/$name.pc
4488 prefix=$prefix
4489 exec_prefix=\${prefix}
4490 libdir=$libdir
4491 includedir=$incdir
4492
4493 Name: $name
4494 Description: $comment
4495 Version: $version
4496 Requires: $(enabled shared || echo $requires)
4497 Requires.private: $(enabled shared && echo $requires)
4498 Conflicts:
4499 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4500 Libs.private: $(enabled shared && echo $libs)
4501 Cflags: -I\${includedir}
4502 EOF
4503     cat <<EOF > $name/$name-uninstalled.pc
4504 prefix=
4505 exec_prefix=
4506 libdir=\${pcfiledir}
4507 includedir=${source_path}
4508
4509 Name: $name
4510 Description: $comment
4511 Version: $version
4512 Requires: $requires
4513 Conflicts:
4514 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4515 Cflags: -I\${includedir}
4516 EOF
4517 }
4518
4519 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4520 enabled movie_filter    && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4521 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4522 enabled scale_filter    && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4523
4524 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4525 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4526 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4527 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4528 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4529 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4530 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil = $LIBAVUTIL_VERSION"