4491ff53557a1c99b5cce21ce6ee94aeae908243
[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-libx264         enable H.264 encoding via x264 [no]
206   --enable-libxavs         enable AVS encoding via xavs [no]
207   --enable-libxvid         enable Xvid encoding via xvidcore,
208                            native MPEG-4/Xvid encoder exists [no]
209   --enable-openssl         enable openssl [no]
210   --enable-x11grab         enable X11 grabbing [no]
211   --enable-zlib            enable zlib [autodetect]
212
213 Advanced options (experts only):
214   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
215   --enable-cross-compile   assume a cross-compiler is used
216   --sysroot=PATH           root of cross-build tree
217   --sysinclude=PATH        location of cross-build system headers
218   --target-os=OS           compiler targets OS [$target_os]
219   --target-exec=CMD        command to run executables on target
220   --target-path=DIR        path to view of build directory on target
221   --target-samples=DIR     path to samples directory on target
222   --toolchain=NAME         set tool defaults according to NAME
223   --nm=NM                  use nm tool
224   --ar=AR                  use archive tool AR [$ar_default]
225   --as=AS                  use assembler AS [$as_default]
226   --cc=CC                  use C compiler CC [$cc_default]
227   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
228   --ld=LD                  use linker LD
229   --host-cc=HOSTCC         use host C compiler HOSTCC
230   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
231   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
232   --host-ld=HOSTLD         use host linker HOSTLD
233   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
234   --host-libs=HLIBS        use libs HLIBS when linking for host
235   --host-os=OS             compiler host OS [$target_os]
236   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
237   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
238   --extra-libs=ELIBS       add ELIBS [$ELIBS]
239   --extra-version=STRING   version string suffix []
240   --optflags=OPTFLAGS      override optimization-related compiler flags
241   --build-suffix=SUFFIX    library name suffix []
242   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
243   --arch=ARCH              select architecture [$arch]
244   --cpu=CPU                select the minimum required CPU (affects
245                            instruction selection, may crash on older CPUs)
246   --enable-pic             build position-independent code
247   --enable-sram            allow use of on-chip SRAM
248   --enable-thumb           compile for Thumb instruction set
249   --disable-symver         disable symbol versioning
250   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
251   --disable-safe-bitstream-reader
252                            disable buffer boundary checking in bitreaders
253                            (faster, but may crash)
254   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
255   --enable-lto             use link-time optimization
256
257 Optimization options (experts only):
258   --disable-asm            disable all assembler optimizations
259   --disable-altivec        disable AltiVec optimizations
260   --disable-amd3dnow       disable 3DNow! optimizations
261   --disable-amd3dnowext    disable 3DNow! extended optimizations
262   --disable-mmx            disable MMX optimizations
263   --disable-mmxext         disable MMXEXT optimizations
264   --disable-sse            disable SSE optimizations
265   --disable-sse2           disable SSE2 optimizations
266   --disable-sse3           disable SSE3 optimizations
267   --disable-ssse3          disable SSSE3 optimizations
268   --disable-sse4           disable SSE4 optimizations
269   --disable-sse42          disable SSE4.2 optimizations
270   --disable-avx            disable AVX optimizations
271   --disable-fma4           disable FMA4 optimizations
272   --disable-avx2           disable AVX2 optimizations
273   --disable-armv5te        disable armv5te optimizations
274   --disable-armv6          disable armv6 optimizations
275   --disable-armv6t2        disable armv6t2 optimizations
276   --disable-vfp            disable VFP optimizations
277   --disable-neon           disable NEON optimizations
278   --disable-vis            disable VIS optimizations
279   --disable-inline-asm     disable use of inline assembler
280   --disable-yasm           disable use of yasm assembler
281
282 Developer options (useful when working on Libav itself):
283   --disable-debug          disable debugging symbols
284   --enable-debug=LEVEL     set the debug level [$debuglevel]
285   --disable-optimizations  disable compiler optimizations
286   --enable-extra-warnings  enable more compiler warnings
287   --samples=PATH           location of test samples for FATE, if not set use
288                            \$LIBAV_SAMPLES at make invocation time.
289   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
290                            should be used only for debugging purposes)
291   --enable-random          randomly enable/disable components
292   --disable-random
293   --enable-random=LIST     randomly enable/disable specific components or
294   --disable-random=LIST    component groups. LIST is a comma-separated list
295                            of NAME[:PROB] entries where NAME is a component
296                            (group) and PROB the probability associated with
297                            NAME (default 0.5).
298   --random-seed=VALUE      seed value for --enable/disable-random
299
300 NOTE: Object files are built at the place where configure is launched.
301 EOF
302   exit 0
303 }
304
305 quotes='""'
306
307 log(){
308     echo "$@" >> $logfile
309 }
310
311 log_file(){
312     log BEGIN $1
313     pr -n -t $1 >> $logfile
314     log END $1
315 }
316
317 echolog(){
318     log "$@"
319     echo "$@"
320 }
321
322 warn(){
323     log "WARNING: $*"
324     WARNINGS="${WARNINGS}WARNING: $*\n"
325 }
326
327 die(){
328     echolog "$@"
329     cat <<EOF
330
331 If you think configure made a mistake, make sure you are using the latest
332 version from Git.  If the latest version fails, report the problem to the
333 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
334 EOF
335     if disabled logging; then
336         cat <<EOF
337 Rerun configure with logging enabled (do not use --disable-logging), and
338 include the log this produces with your report.
339 EOF
340     else
341         cat <<EOF
342 Include the log file "$logfile" produced by configure as this will help
343 solving the problem.
344 EOF
345     fi
346     exit 1
347 }
348
349 # Avoid locale weirdness, besides we really just want to translate ASCII.
350 toupper(){
351     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
352 }
353
354 tolower(){
355     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
356 }
357
358 c_escape(){
359     echo "$*" | sed 's/["\\]/\\\0/g'
360 }
361
362 sh_quote(){
363     v=$(echo "$1" | sed "s/'/'\\\\''/g")
364     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
365     echo "$v"
366 }
367
368 cleanws(){
369     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
370 }
371
372 filter(){
373     pat=$1
374     shift
375     for v; do
376         eval "case $v in $pat) echo $v ;; esac"
377     done
378 }
379
380 filter_out(){
381     pat=$1
382     shift
383     for v; do
384         eval "case $v in $pat) ;; *) echo $v ;; esac"
385     done
386 }
387
388 map(){
389     m=$1
390     shift
391     for v; do eval $m; done
392 }
393
394 add_suffix(){
395     suffix=$1
396     shift
397     for v; do echo ${v}${suffix}; done
398 }
399
400 set_all(){
401     value=$1
402     shift
403     for var in $*; do
404         eval $var=$value
405     done
406 }
407
408 set_weak(){
409     value=$1
410     shift
411     for var; do
412         eval : \${$var:=$value}
413     done
414 }
415
416 sanitize_var_name(){
417     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
418 }
419
420 set_safe(){
421     var=$1
422     shift
423     eval $(sanitize_var_name "$var")='$*'
424 }
425
426 get_safe(){
427     eval echo \$$(sanitize_var_name "$1")
428 }
429
430 pushvar(){
431     for pvar in $*; do
432         eval level=\${${pvar}_level:=0}
433         eval ${pvar}_${level}="\$$pvar"
434         eval ${pvar}_level=$(($level+1))
435     done
436 }
437
438 popvar(){
439     for pvar in $*; do
440         eval level=\${${pvar}_level:-0}
441         test $level = 0 && continue
442         eval level=$(($level-1))
443         eval $pvar="\${${pvar}_${level}}"
444         eval ${pvar}_level=$level
445         eval unset ${pvar}_${level}
446     done
447 }
448
449 enable(){
450     set_all yes $*
451 }
452
453 disable(){
454     set_all no $*
455 }
456
457 enable_weak(){
458     set_weak yes $*
459 }
460
461 disable_weak(){
462     set_weak no $*
463 }
464
465 enable_safe(){
466     for var; do
467         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
468     done
469 }
470
471 disable_safe(){
472     for var; do
473         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
474     done
475 }
476
477 do_enable_deep(){
478     for var; do
479         enabled $var && continue
480         eval sel="\$${var}_select"
481         eval sgs="\$${var}_suggest"
482         pushvar var sgs
483         enable_deep $sel
484         popvar sgs
485         enable_deep_weak $sgs
486         popvar var
487     done
488 }
489
490 enable_deep(){
491     do_enable_deep $*
492     enable $*
493 }
494
495 enable_deep_weak(){
496     for var; do
497         disabled $var && continue
498         pushvar var
499         do_enable_deep $var
500         popvar var
501         enable_weak $var
502     done
503 }
504
505 enabled(){
506     test "${1#!}" = "$1" && op== || op=!=
507     eval test "x\$${1#!}" $op "xyes"
508 }
509
510 disabled(){
511     test "${1#!}" = "$1" && op== || op=!=
512     eval test "x\$${1#!}" $op "xno"
513 }
514
515 enabled_all(){
516     for opt; do
517         enabled $opt || return 1
518     done
519 }
520
521 disabled_all(){
522     for opt; do
523         disabled $opt || return 1
524     done
525 }
526
527 enabled_any(){
528     for opt; do
529         enabled $opt && return 0
530     done
531 }
532
533 disabled_any(){
534     for opt; do
535         disabled $opt && return 0
536     done
537     return 1
538 }
539
540 set_default(){
541     for opt; do
542         eval : \${$opt:=\$${opt}_default}
543     done
544 }
545
546 is_in(){
547     value=$1
548     shift
549     for var in $*; do
550         [ $var = $value ] && return 0
551     done
552     return 1
553 }
554
555 do_check_deps(){
556     for cfg; do
557         cfg="${cfg#!}"
558         enabled ${cfg}_checking && die "Circular dependency for $cfg."
559         disabled ${cfg}_checking && continue
560         enable ${cfg}_checking
561         append allopts $cfg
562
563         eval dep_all="\$${cfg}_deps"
564         eval dep_any="\$${cfg}_deps_any"
565         eval dep_sel="\$${cfg}_select"
566         eval dep_sgs="\$${cfg}_suggest"
567         eval dep_ifa="\$${cfg}_if"
568         eval dep_ifn="\$${cfg}_if_any"
569
570         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
571         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
572         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
573
574         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
575         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
576         enabled_all  $dep_all || disable $cfg
577         enabled_any  $dep_any || disable $cfg
578         disabled_any $dep_sel && disable $cfg
579
580         if enabled $cfg; then
581             enable_deep $dep_sel
582             enable_deep_weak $dep_sgs
583         fi
584
585         disable ${cfg}_checking
586     done
587 }
588
589 check_deps(){
590     unset allopts
591
592     do_check_deps "$@"
593
594     for cfg in $allopts; do
595         enabled $cfg || continue
596         eval dep_extralibs="\$${cfg}_extralibs"
597         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
598     done
599 }
600
601 print_config(){
602     pfx=$1
603     files=$2
604     shift 2
605     map 'eval echo "$v \${$v:-no}"' "$@" |
606     awk "BEGIN { split(\"$files\", files) }
607         {
608             c = \"$pfx\" toupper(\$1);
609             v = \$2;
610             sub(/yes/, 1, v);
611             sub(/no/,  0, v);
612             for (f in files) {
613                 file = files[f];
614                 if (file ~ /\\.h\$/) {
615                     printf(\"#define %s %d\\n\", c, v) >>file;
616                 } else if (file ~ /\\.asm\$/) {
617                     printf(\"%%define %s %d\\n\", c, v) >>file;
618                 } else if (file ~ /\\.mak\$/) {
619                     n = -v ? \"\" : \"!\";
620                     printf(\"%s%s=yes\\n\", n, c) >>file;
621                 }
622             }
623         }"
624 }
625
626 print_enabled(){
627     suf=$1
628     shift
629     for v; do
630         enabled $v && printf "%s\n" ${v%$suf};
631     done
632 }
633
634 append(){
635     var=$1
636     shift
637     eval "$var=\"\$$var $*\""
638 }
639
640 prepend(){
641     var=$1
642     shift
643     eval "$var=\"$* \$$var\""
644 }
645
646 add_cppflags(){
647     append CPPFLAGS "$@"
648 }
649
650 add_cflags(){
651     append CFLAGS $($cflags_filter "$@")
652 }
653
654 add_asflags(){
655     append ASFLAGS $($asflags_filter "$@")
656 }
657
658 add_ldflags(){
659     append LDFLAGS $($ldflags_filter "$@")
660 }
661
662 add_stripflags(){
663     append STRIPFLAGS "$@"
664 }
665
666 add_extralibs(){
667     prepend extralibs $($ldflags_filter "$@")
668 }
669
670 add_host_cppflags(){
671     append host_cppflags "$@"
672 }
673
674 add_host_cflags(){
675     append host_cflags $($host_cflags_filter "$@")
676 }
677
678 add_host_ldflags(){
679     append host_ldflags $($host_ldflags_filter "$@")
680 }
681
682 add_compat(){
683     append compat_objs $1
684     shift
685     map 'add_cppflags -D$v' "$@"
686 }
687
688 check_cmd(){
689     log "$@"
690     "$@" >> $logfile 2>&1
691 }
692
693 cc_o(){
694     eval printf '%s\\n' $CC_O
695 }
696
697 cc_e(){
698     eval printf '%s\\n' $CC_E
699 }
700
701 check_cc(){
702     log check_cc "$@"
703     cat > $TMPC
704     log_file $TMPC
705     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
706 }
707
708 check_cpp(){
709     log check_cpp "$@"
710     cat > $TMPC
711     log_file $TMPC
712     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
713 }
714
715 as_o(){
716     eval printf '%s\\n' $AS_O
717 }
718
719 check_as(){
720     log check_as "$@"
721     cat > $TMPS
722     log_file $TMPS
723     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
724 }
725
726 check_inline_asm(){
727     log check_inline_asm "$@"
728     name="$1"
729     code="$2"
730     shift 2
731     disable $name
732     check_cc "$@" <<EOF && enable $name
733 void foo(void){ __asm__ volatile($code); }
734 EOF
735 }
736
737 check_insn(){
738     log check_insn "$@"
739     check_inline_asm ${1}_inline "\"$2\""
740     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
741 }
742
743 check_yasm(){
744     log check_yasm "$@"
745     echo "$1" > $TMPS
746     log_file $TMPS
747     shift 1
748     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
749 }
750
751 ld_o(){
752     eval printf '%s\\n' $LD_O
753 }
754
755 check_ld(){
756     log check_ld "$@"
757     flags=$(filter_out '-l*' "$@")
758     libs=$(filter '-l*' "$@")
759     check_cc $($cflags_filter $flags) || return
760     flags=$($ldflags_filter $flags)
761     libs=$($ldflags_filter $libs)
762     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
763 }
764
765 check_code(){
766     log check_code "$@"
767     check=$1
768     headers=$2
769     code=$3
770     shift 3
771     {
772         for hdr in $headers; do
773             echo "#include <$hdr>"
774         done
775         echo "int main(void) { $code; return 0; }"
776     } | check_$check "$@"
777 }
778
779 check_cppflags(){
780     log check_cppflags "$@"
781     check_cc "$@" <<EOF && append CPPFLAGS "$@"
782 int x;
783 EOF
784 }
785
786 test_cflags(){
787     log test_cflags "$@"
788     set -- $($cflags_filter "$@")
789     check_cc "$@" <<EOF
790 int x;
791 EOF
792 }
793
794 check_cflags(){
795     log check_cflags "$@"
796     test_cflags "$@" && add_cflags "$@"
797 }
798
799 test_ldflags(){
800     log test_ldflags "$@"
801     check_ld "$@" <<EOF
802 int main(void){ return 0; }
803 EOF
804 }
805
806 check_ldflags(){
807     log check_ldflags "$@"
808     test_ldflags "$@" && add_ldflags "$@"
809 }
810
811 test_stripflags(){
812     log test_stripflags "$@"
813     # call check_cc to get a fresh TMPO
814     check_cc <<EOF
815 int main(void) { return 0; }
816 EOF
817     check_cmd $strip $STRIPFLAGS "$@" $TMPO
818 }
819
820 check_stripflags(){
821     log check_stripflags "$@"
822     test_stripflags "$@" && add_stripflags "$@"
823 }
824
825 check_header(){
826     log check_header "$@"
827     header=$1
828     shift
829     disable_safe $header
830     check_cpp "$@" <<EOF && enable_safe $header
831 #include <$header>
832 int x;
833 EOF
834 }
835
836 check_func(){
837     log check_func "$@"
838     func=$1
839     shift
840     disable $func
841     check_ld "$@" <<EOF && enable $func
842 extern int $func();
843 int main(void){ $func(); }
844 EOF
845 }
846
847 check_mathfunc(){
848     log check_mathfunc "$@"
849     func=$1
850     narg=$2
851     shift 2
852     test $narg = 2 && args="f, g" || args="f"
853     disable $func
854     check_ld "$@" <<EOF && enable $func
855 #include <math.h>
856 float foo(float f, float g) { return $func($args); }
857 int main(void){ return 0; }
858 EOF
859 }
860
861 check_func_headers(){
862     log check_func_headers "$@"
863     headers=$1
864     funcs=$2
865     shift 2
866     {
867         for hdr in $headers; do
868             echo "#include <$hdr>"
869         done
870         for func in $funcs; do
871             echo "long check_$func(void) { return (long) $func; }"
872         done
873         echo "int main(void) { return 0; }"
874     } | check_ld "$@" && enable $funcs && enable_safe $headers
875 }
876
877 check_cpp_condition(){
878     log check_cpp_condition "$@"
879     header=$1
880     condition=$2
881     shift 2
882     check_cpp "$@" <<EOF
883 #include <$header>
884 #if !($condition)
885 #error "unsatisfied condition: $condition"
886 #endif
887 EOF
888 }
889
890 check_lib(){
891     log check_lib "$@"
892     header="$1"
893     func="$2"
894     shift 2
895     check_header $header && check_func $func "$@" && add_extralibs "$@"
896 }
897
898 check_lib2(){
899     log check_lib2 "$@"
900     headers="$1"
901     funcs="$2"
902     shift 2
903     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
904 }
905
906 check_pkg_config(){
907     log check_pkg_config "$@"
908     pkg="$1"
909     headers="$2"
910     funcs="$3"
911     shift 3
912     check_cmd $pkg_config --exists --print-errors $pkg || return
913     pkg_cflags=$($pkg_config --cflags $pkg)
914     pkg_libs=$($pkg_config --libs $pkg)
915     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
916         set_safe ${pkg}_cflags $pkg_cflags   &&
917         set_safe ${pkg}_libs   $pkg_libs
918 }
919
920 check_exec(){
921     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
922 }
923
924 check_exec_crash(){
925     code=$(cat)
926
927     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
928     # are safe but may not be available everywhere.  Thus we use
929     # raise(SIGTERM) instead.  The check is run in a subshell so we
930     # can redirect the "Terminated" message from the shell.  SIGBUS
931     # is not defined by standard C so it is used conditionally.
932
933     (check_exec "$@") >> $logfile 2>&1 <<EOF
934 #include <signal.h>
935 static void sighandler(int sig){
936     raise(SIGTERM);
937 }
938 int foo(void){
939     $code
940 }
941 int (*func_ptr)(void) = foo;
942 int main(void){
943     signal(SIGILL, sighandler);
944     signal(SIGFPE, sighandler);
945     signal(SIGSEGV, sighandler);
946 #ifdef SIGBUS
947     signal(SIGBUS, sighandler);
948 #endif
949     return func_ptr();
950 }
951 EOF
952 }
953
954 check_type(){
955     log check_type "$@"
956     headers=$1
957     type=$2
958     shift 2
959     disable_safe "$type"
960     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
961 }
962
963 check_struct(){
964     log check_struct "$@"
965     headers=$1
966     struct=$2
967     member=$3
968     shift 3
969     disable_safe "${struct}_${member}"
970     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
971         enable_safe "${struct}_${member}"
972 }
973
974 check_builtin(){
975     log check_builtin "$@"
976     name=$1
977     headers=$2
978     builtin=$3
979     shift 3
980     disable "$name"
981     check_code ld "$headers" "$builtin" "$@" && enable "$name"
982 }
983
984 require(){
985     name="$1"
986     header="$2"
987     func="$3"
988     shift 3
989     check_lib $header $func "$@" || die "ERROR: $name not found"
990 }
991
992 require2(){
993     name="$1"
994     headers="$2"
995     func="$3"
996     shift 3
997     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
998 }
999
1000 require_pkg_config(){
1001     pkg="$1"
1002     check_pkg_config "$@" || die "ERROR: $pkg not found"
1003     add_cflags    $(get_safe ${pkg}_cflags)
1004     add_extralibs $(get_safe ${pkg}_libs)
1005 }
1006
1007 hostcc_e(){
1008     eval printf '%s\\n' $HOSTCC_E
1009 }
1010
1011 hostcc_o(){
1012     eval printf '%s\\n' $HOSTCC_O
1013 }
1014
1015 check_host_cc(){
1016     log check_host_cc "$@"
1017     cat > $TMPC
1018     log_file $TMPC
1019     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1020 }
1021
1022 check_host_cpp(){
1023     log check_host_cpp "$@"
1024     cat > $TMPC
1025     log_file $TMPC
1026     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1027 }
1028
1029 check_host_cppflags(){
1030     log check_host_cppflags "$@"
1031     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1032 int x;
1033 EOF
1034 }
1035
1036 check_host_cflags(){
1037     log check_host_cflags "$@"
1038     set -- $($host_cflags_filter "$@")
1039     check_host_cc "$@" <<EOF && append host_cflags "$@"
1040 int x;
1041 EOF
1042 }
1043
1044 check_host_cpp_condition(){
1045     log check_host_cpp_condition "$@"
1046     header=$1
1047     condition=$2
1048     shift 2
1049     check_host_cpp "$@" <<EOF
1050 #include <$header>
1051 #if !($condition)
1052 #error "unsatisfied condition: $condition"
1053 #endif
1054 EOF
1055 }
1056
1057 apply(){
1058     file=$1
1059     shift
1060     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1061 }
1062
1063 cp_if_changed(){
1064     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1065     mkdir -p "$(dirname $2)"
1066     $cp_f "$1" "$2"
1067 }
1068
1069 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1070 # system-dependent things.
1071
1072 COMPONENT_LIST="
1073     bsfs
1074     decoders
1075     demuxers
1076     encoders
1077     filters
1078     hwaccels
1079     indevs
1080     muxers
1081     outdevs
1082     parsers
1083     protocols
1084 "
1085
1086 EXAMPLE_LIST="
1087     output_example
1088     transcode_aac_example
1089 "
1090
1091 EXTERNAL_LIBRARY_LIST="
1092     avisynth
1093     bzlib
1094     frei0r
1095     gnutls
1096     libcdio
1097     libdc1394
1098     libfaac
1099     libfdk_aac
1100     libfreetype
1101     libgsm
1102     libilbc
1103     libmp3lame
1104     libopencore_amrnb
1105     libopencore_amrwb
1106     libopencv
1107     libopenjpeg
1108     libopus
1109     libpulse
1110     librtmp
1111     libschroedinger
1112     libspeex
1113     libtheora
1114     libvo_aacenc
1115     libvo_amrwbenc
1116     libvorbis
1117     libvpx
1118     libwavpack
1119     libx264
1120     libxavs
1121     libxvid
1122     openssl
1123     x11grab
1124     zlib
1125 "
1126
1127 HWACCEL_LIST="
1128     dxva2
1129     vaapi
1130     vda
1131     vdpau
1132 "
1133 LIBRARY_LIST="
1134     avcodec
1135     avdevice
1136     avfilter
1137     avformat
1138     avresample
1139     avutil
1140     swscale
1141 "
1142
1143 PROGRAM_LIST="
1144     avconv
1145     avplay
1146     avprobe
1147     avserver
1148 "
1149
1150 CONFIG_LIST="
1151     $COMPONENT_LIST
1152     $EXAMPLE_LIST
1153     $EXTERNAL_LIBRARY_LIST
1154     $HWACCEL_LIST
1155     $LIBRARY_LIST
1156     $PROGRAM_LIST
1157     dct
1158     doc
1159     error_resilience
1160     fft
1161     gpl
1162     gray
1163     hardcoded_tables
1164     lsp
1165     lzo
1166     mdct
1167     memalign_hack
1168     network
1169     nonfree
1170     pod2man
1171     pic
1172     rdft
1173     runtime_cpudetect
1174     safe_bitstream_reader
1175     shared
1176     small
1177     sram
1178     static
1179     swscale_alpha
1180     texi2html
1181     thumb
1182     version3
1183     xmm_clobber_test
1184 "
1185
1186 THREADS_LIST='
1187     pthreads
1188     w32threads
1189 '
1190
1191 ATOMICS_LIST='
1192     atomics_gcc
1193     atomics_suncc
1194     atomics_win32
1195 '
1196
1197 ARCH_LIST='
1198     aarch64
1199     alpha
1200     arm
1201     avr32
1202     avr32_ap
1203     avr32_uc
1204     bfin
1205     ia64
1206     m68k
1207     mips
1208     mips64
1209     parisc
1210     ppc
1211     ppc64
1212     s390
1213     sh4
1214     sparc
1215     sparc64
1216     tilegx
1217     tilepro
1218     tomi
1219     x86
1220     x86_32
1221     x86_64
1222 '
1223
1224 ARCH_EXT_LIST_ARM='
1225     armv5te
1226     armv6
1227     armv6t2
1228     neon
1229     vfp
1230     vfpv3
1231 '
1232
1233 ARCH_EXT_LIST_X86='
1234     amd3dnow
1235     amd3dnowext
1236     avx
1237     avx2
1238     fma4
1239     i686
1240     mmx
1241     mmxext
1242     sse
1243     sse2
1244     sse3
1245     sse4
1246     sse42
1247     ssse3
1248 '
1249
1250 ARCH_EXT_LIST="
1251     $ARCH_EXT_LIST_ARM
1252     $ARCH_EXT_LIST_X86
1253     altivec
1254     ppc4xx
1255     vis
1256 "
1257
1258 HAVE_LIST_CMDLINE='
1259     inline_asm
1260     symver
1261     yasm
1262 '
1263
1264 HAVE_LIST_PUB='
1265     bigendian
1266     fast_unaligned
1267 '
1268
1269 MATH_FUNCS="
1270     atanf
1271     atan2f
1272     cbrtf
1273     cosf
1274     exp2
1275     exp2f
1276     expf
1277     isinf
1278     isnan
1279     ldexpf
1280     llrint
1281     llrintf
1282     log2
1283     log2f
1284     log10f
1285     lrint
1286     lrintf
1287     powf
1288     rint
1289     round
1290     roundf
1291     sinf
1292     trunc
1293     truncf
1294 "
1295
1296 HAVE_LIST="
1297     $ARCH_EXT_LIST
1298     $(add_suffix _external $ARCH_EXT_LIST)
1299     $(add_suffix _inline   $ARCH_EXT_LIST)
1300     $HAVE_LIST_CMDLINE
1301     $HAVE_LIST_PUB
1302     $THREADS_LIST
1303     $ATOMICS_LIST
1304     $MATH_FUNCS
1305     aligned_malloc
1306     aligned_stack
1307     alsa_asoundlib_h
1308     altivec_h
1309     arpa_inet_h
1310     asm_mod_q
1311     asm_mod_y
1312     atomic_cas_ptr
1313     atomics_native
1314     attribute_may_alias
1315     attribute_packed
1316     cdio_paranoia_h
1317     cdio_paranoia_paranoia_h
1318     closesocket
1319     CommandLineToArgvW
1320     cpunop
1321     CryptGenRandom
1322     dcbzl
1323     dev_bktr_ioctl_bt848_h
1324     dev_bktr_ioctl_meteor_h
1325     dev_ic_bt8xx_h
1326     dev_video_bktr_ioctl_bt848_h
1327     dev_video_meteor_ioctl_meteor_h
1328     direct_h
1329     dlfcn_h
1330     dlopen
1331     dos_paths
1332     dxva_h
1333     ebp_available
1334     ebx_available
1335     fast_64bit
1336     fast_clz
1337     fast_cmov
1338     fcntl
1339     fork
1340     getaddrinfo
1341     gethrtime
1342     getopt
1343     GetProcessAffinityMask
1344     GetProcessMemoryInfo
1345     GetProcessTimes
1346     GetSystemTimeAsFileTime
1347     getrusage
1348     getservbyport
1349     gettimeofday
1350     gnu_as
1351     gsm_h
1352     ibm_asm
1353     inet_aton
1354     io_h
1355     inline_asm_labels
1356     isatty
1357     jack_port_get_latency_range
1358     ldbrx
1359     libc_msvcrt
1360     libdc1394_1
1361     libdc1394_2
1362     local_aligned_16
1363     local_aligned_8
1364     localtime_r
1365     loongson
1366     machine_ioctl_bt848_h
1367     machine_ioctl_meteor_h
1368     machine_rw_barrier
1369     malloc_h
1370     MapViewOfFile
1371     memalign
1372     MemoryBarrier
1373     mkstemp
1374     mm_empty
1375     mmap
1376     mprotect
1377     nanosleep
1378     poll_h
1379     posix_memalign
1380     pragma_deprecated
1381     rdtsc
1382     sched_getaffinity
1383     sdl
1384     SetConsoleTextAttribute
1385     setmode
1386     setrlimit
1387     Sleep
1388     sndio_h
1389     socklen_t
1390     soundcard_h
1391     strerror_r
1392     strptime
1393     strtok_r
1394     struct_addrinfo
1395     struct_group_source_req
1396     struct_ip_mreq_source
1397     struct_ipv6_mreq
1398     struct_pollfd
1399     struct_rusage_ru_maxrss
1400     struct_sockaddr_in6
1401     struct_sockaddr_sa_len
1402     struct_sockaddr_storage
1403     struct_v4l2_frmivalenum_discrete
1404     symver_asm_label
1405     symver_gnu_asm
1406     sync_val_compare_and_swap
1407     sysconf
1408     sysctl
1409     sys_mman_h
1410     sys_param_h
1411     sys_resource_h
1412     sys_select_h
1413     sys_soundcard_h
1414     sys_time_h
1415     sys_un_h
1416     sys_videoio_h
1417     threads
1418     unistd_h
1419     usleep
1420     vdpau_x11
1421     vfp_args
1422     VirtualAlloc
1423     windows_h
1424     winsock2_h
1425     xform_asm
1426     xlib
1427     xmm_clobbers
1428 "
1429
1430 # options emitted with CONFIG_ prefix but not available on the command line
1431 CONFIG_EXTRA="
1432     aandcttables
1433     ac3dsp
1434     audio_frame_queue
1435     dsputil
1436     gcrypt
1437     golomb
1438     gplv3
1439     h263dsp
1440     h264chroma
1441     h264dsp
1442     h264pred
1443     h264qpel
1444     hpeldsp
1445     huffman
1446     lgplv3
1447     lpc
1448     mpegaudio
1449     mpegaudiodsp
1450     mpegvideo
1451     mpegvideoenc
1452     nettle
1453     rangecoder
1454     riffdec
1455     riffenc
1456     rtpdec
1457     rtpenc_chain
1458     sinewin
1459     videodsp
1460     vp3dsp
1461 "
1462
1463 CMDLINE_SELECT="
1464     $ARCH_EXT_LIST
1465     $CONFIG_LIST
1466     $HAVE_LIST_CMDLINE
1467     $THREADS_LIST
1468     asm
1469     cross_compile
1470     debug
1471     extra_warnings
1472     logging
1473     lto
1474     optimizations
1475 "
1476
1477 PATHS_LIST='
1478     bindir
1479     datadir
1480     docdir
1481     incdir
1482     libdir
1483     mandir
1484     prefix
1485     shlibdir
1486 '
1487
1488 CMDLINE_SET="
1489     $PATHS_LIST
1490     ar
1491     arch
1492     as
1493     build_suffix
1494     cc
1495     cpu
1496     cross_prefix
1497     dep_cc
1498     extra_version
1499     host_cc
1500     host_cflags
1501     host_ld
1502     host_ldflags
1503     host_libs
1504     host_os
1505     ld
1506     logfile
1507     malloc_prefix
1508     nm
1509     optflags
1510     pkg_config
1511     random_seed
1512     samples
1513     sysinclude
1514     sysroot
1515     target_exec
1516     target_os
1517     target_path
1518     target_samples
1519     toolchain
1520 "
1521
1522 CMDLINE_APPEND="
1523     extra_cflags
1524     host_cppflags
1525 "
1526
1527 # code dependency declarations
1528
1529 # architecture extensions
1530
1531 armv5te_deps="arm"
1532 armv6_deps="arm"
1533 armv6t2_deps="arm"
1534 neon_deps="arm"
1535 vfp_deps="arm"
1536 vfpv3_deps="vfp"
1537
1538 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1539
1540 altivec_deps="ppc"
1541 ppc4xx_deps="ppc"
1542
1543 vis_deps="sparc"
1544
1545 cpunop_deps="i686"
1546 x86_64_select="i686"
1547 x86_64_suggest="fast_cmov"
1548
1549 amd3dnow_deps="mmx"
1550 amd3dnowext_deps="amd3dnow"
1551 mmx_deps="x86"
1552 mmxext_deps="mmx"
1553 sse_deps="mmxext"
1554 sse2_deps="sse"
1555 sse3_deps="sse2"
1556 ssse3_deps="sse3"
1557 sse4_deps="ssse3"
1558 sse42_deps="sse4"
1559 avx_deps="sse42"
1560 fma4_deps="avx"
1561 avx2_deps="avx"
1562
1563 mmx_external_deps="yasm"
1564 mmx_inline_deps="inline_asm"
1565 mmx_suggest="mmx_external mmx_inline"
1566
1567 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1568     eval dep=\$${ext}_deps
1569     eval ${ext}_external_deps='"${dep}_external"'
1570     eval ${ext}_inline_deps='"${dep}_inline"'
1571     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1572 done
1573
1574 aligned_stack_if_any="ppc x86"
1575 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1576 fast_clz_if_any="alpha avr32 mips ppc x86"
1577 fast_unaligned_if_any="ppc x86"
1578
1579 need_memalign="altivec neon sse"
1580
1581 symver_if_any="symver_asm_label symver_gnu_asm"
1582
1583 # subsystems
1584 dct_select="rdft"
1585 error_resilience_select="dsputil"
1586 lpc_select="dsputil"
1587 mdct_select="fft"
1588 rdft_select="fft"
1589 mpegaudio_select="mpegaudiodsp"
1590 mpegaudiodsp_select="dct"
1591 mpegvideo_select="dsputil hpeldsp videodsp"
1592 mpegvideoenc_select="mpegvideo"
1593
1594 # decoders / encoders
1595 aac_decoder_select="mdct sinewin"
1596 aac_encoder_select="audio_frame_queue mdct sinewin"
1597 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1598 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1599 ac3_encoder_select="mdct ac3dsp dsputil"
1600 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1601 aic_decoder_select="dsputil golomb"
1602 alac_encoder_select="lpc"
1603 als_decoder_select="dsputil"
1604 amrnb_decoder_select="lsp"
1605 amrwb_decoder_select="lsp"
1606 amv_decoder_select="dsputil hpeldsp"
1607 ape_decoder_select="dsputil"
1608 asv1_decoder_select="dsputil"
1609 asv1_encoder_select="dsputil"
1610 asv2_decoder_select="dsputil"
1611 asv2_encoder_select="dsputil"
1612 atrac1_decoder_select="mdct sinewin"
1613 atrac3_decoder_select="mdct"
1614 bink_decoder_select="dsputil hpeldsp"
1615 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1616 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1617 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1618 cllc_decoder_select="dsputil"
1619 comfortnoise_encoder_select="lpc"
1620 cook_decoder_select="dsputil mdct sinewin"
1621 cscd_decoder_select="lzo"
1622 cscd_decoder_suggest="zlib"
1623 dca_decoder_select="mdct"
1624 dnxhd_decoder_select="dsputil"
1625 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1626 dvvideo_decoder_select="dsputil"
1627 dvvideo_encoder_select="dsputil"
1628 dxa_decoder_deps="zlib"
1629 eac3_decoder_select="ac3_decoder"
1630 eac3_encoder_select="ac3_encoder"
1631 eamad_decoder_select="aandcttables dsputil mpegvideo"
1632 eatgq_decoder_select="aandcttables dsputil"
1633 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1634 ffv1_decoder_select="dsputil golomb rangecoder"
1635 ffv1_encoder_select="dsputil rangecoder"
1636 ffvhuff_decoder_select="dsputil"
1637 ffvhuff_encoder_select="dsputil huffman"
1638 flac_decoder_select="golomb"
1639 flac_encoder_select="dsputil golomb lpc"
1640 flashsv_decoder_deps="zlib"
1641 flashsv_encoder_deps="zlib"
1642 flashsv2_decoder_deps="zlib"
1643 flv_decoder_select="h263_decoder"
1644 flv_encoder_select="h263_encoder"
1645 fourxm_decoder_select="dsputil"
1646 fraps_decoder_select="dsputil huffman"
1647 g2m_decoder_deps="zlib"
1648 g2m_decoder_select="dsputil"
1649 h261_decoder_select="error_resilience mpegvideo"
1650 h261_encoder_select="aandcttables mpegvideoenc"
1651 h263_decoder_select="error_resilience h263_parser h263dsp mpegvideo"
1652 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
1653 h263i_decoder_select="h263_decoder"
1654 h263p_encoder_select="h263_encoder"
1655 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1656 h264_decoder_suggest="error_resilience"
1657 hevc_decoder_select="dsputil golomb videodsp"
1658 huffyuv_decoder_select="dsputil"
1659 huffyuv_encoder_select="dsputil huffman"
1660 iac_decoder_select="dsputil fft mdct sinewin"
1661 imc_decoder_select="dsputil fft mdct sinewin"
1662 indeo3_decoder_select="hpeldsp"
1663 interplay_video_decoder_select="hpeldsp"
1664 jpegls_decoder_select="dsputil golomb hpeldsp"
1665 jpegls_encoder_select="golomb"
1666 jv_decoder_select="dsputil"
1667 lagarith_decoder_select="dsputil"
1668 ljpeg_encoder_select="aandcttables mpegvideoenc"
1669 loco_decoder_select="golomb"
1670 mdec_decoder_select="dsputil error_resilience mpegvideo"
1671 metasound_decoder_select="lsp mdct sinewin"
1672 mimic_decoder_select="dsputil hpeldsp"
1673 mjpeg_decoder_select="dsputil hpeldsp"
1674 mjpegb_decoder_select="dsputil hpeldsp"
1675 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1676 mlp_decoder_select="dsputil mlp_parser"
1677 motionpixels_decoder_select="dsputil"
1678 mp1_decoder_select="mpegaudio"
1679 mp1float_decoder_select="mpegaudio"
1680 mp2_decoder_select="mpegaudio"
1681 mp2float_decoder_select="mpegaudio"
1682 mp3_decoder_select="mpegaudio"
1683 mp3adu_decoder_select="mpegaudio"
1684 mp3adufloat_decoder_select="mpegaudio"
1685 mp3float_decoder_select="mpegaudio"
1686 mp3on4_decoder_select="mpegaudio"
1687 mp3on4float_decoder_select="mpegaudio"
1688 mpc7_decoder_select="dsputil mpegaudiodsp"
1689 mpc8_decoder_select="dsputil mpegaudiodsp"
1690 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1691 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1692 mpeg1video_decoder_select="error_resilience mpegvideo"
1693 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1694 mpeg2video_decoder_select="error_resilience mpegvideo"
1695 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1696 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1697 mpeg4_encoder_select="h263_encoder"
1698 msmpeg4v1_decoder_select="h263_decoder"
1699 msmpeg4v2_decoder_select="h263_decoder"
1700 msmpeg4v2_encoder_select="h263_encoder"
1701 msmpeg4v3_decoder_select="h263_decoder"
1702 msmpeg4v3_encoder_select="h263_encoder"
1703 mss2_decoder_select="error_resilience vc1_decoder"
1704 mxpeg_decoder_select="dsputil hpeldsp"
1705 nellymoser_decoder_select="mdct sinewin"
1706 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1707 nuv_decoder_select="dsputil lzo"
1708 png_decoder_deps="zlib"
1709 png_decoder_select="dsputil"
1710 png_encoder_deps="zlib"
1711 png_encoder_select="dsputil"
1712 prores_decoder_select="dsputil"
1713 prores_encoder_select="dsputil"
1714 qcelp_decoder_select="lsp"
1715 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1716 ra_144_encoder_select="audio_frame_queue lpc"
1717 ralf_decoder_select="golomb"
1718 rv10_decoder_select="error_resilience h263_decoder h263dsp"
1719 rv10_encoder_select="h263_encoder"
1720 rv20_decoder_select="error_resilience h263_decoder h263dsp"
1721 rv20_encoder_select="h263_encoder"
1722 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1723 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1724 shorten_decoder_select="golomb"
1725 sipr_decoder_select="lsp"
1726 sp5x_decoder_select="dsputil hpeldsp"
1727 svq1_decoder_select="hpeldsp"
1728 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1729 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1730 svq3_decoder_suggest="error_resilience zlib"
1731 tak_decoder_select="dsputil"
1732 theora_decoder_select="vp3_decoder"
1733 tiff_decoder_suggest="zlib"
1734 tiff_encoder_suggest="zlib"
1735 thp_decoder_select="dsputil hpeldsp"
1736 truehd_decoder_select="mlp_decoder"
1737 truemotion2_decoder_select="dsputil"
1738 truespeech_decoder_select="dsputil"
1739 tscc_decoder_deps="zlib"
1740 twinvq_decoder_select="mdct lsp sinewin"
1741 utvideo_decoder_select="dsputil"
1742 utvideo_encoder_select="dsputil huffman"
1743 vble_decoder_select="dsputil"
1744 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1745 vc1image_decoder_select="vc1_decoder"
1746 vorbis_decoder_select="mdct"
1747 vorbis_encoder_select="mdct"
1748 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1749 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1750 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1751 vp6a_decoder_select="vp6_decoder"
1752 vp6f_decoder_select="vp6_decoder"
1753 vp8_decoder_select="h264pred videodsp"
1754 vp9_decoder_select="videodsp"
1755 webp_decoder_select="vp8_decoder"
1756 wmapro_decoder_select="mdct sinewin"
1757 wmav1_decoder_select="mdct sinewin"
1758 wmav1_encoder_select="mdct sinewin"
1759 wmav2_decoder_select="mdct sinewin"
1760 wmav2_encoder_select="mdct sinewin"
1761 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1762 wmv1_decoder_select="h263_decoder"
1763 wmv1_encoder_select="h263_encoder"
1764 wmv2_decoder_select="h263_decoder videodsp"
1765 wmv2_encoder_select="h263_encoder"
1766 wmv3_decoder_select="vc1_decoder"
1767 wmv3image_decoder_select="wmv3_decoder"
1768 zerocodec_decoder_deps="zlib"
1769 zlib_decoder_deps="zlib"
1770 zlib_encoder_deps="zlib"
1771 zmbv_decoder_deps="zlib"
1772 zmbv_encoder_deps="zlib"
1773
1774 # hardware accelerators
1775 dxva2_deps="dxva2api_h"
1776 vaapi_deps="va_va_h"
1777 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1778 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1779 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1780
1781 h263_vaapi_hwaccel_deps="vaapi"
1782 h263_vaapi_hwaccel_select="h263_decoder"
1783 h263_vdpau_hwaccel_deps="vdpau"
1784 h263_vdpau_hwaccel_select="h263_decoder"
1785 h264_dxva2_hwaccel_deps="dxva2"
1786 h264_dxva2_hwaccel_select="h264_decoder"
1787 h264_vaapi_hwaccel_deps="vaapi"
1788 h264_vaapi_hwaccel_select="h264_decoder"
1789 h264_vda_hwaccel_deps="vda"
1790 h264_vda_hwaccel_select="h264_decoder"
1791 h264_vdpau_hwaccel_deps="vdpau"
1792 h264_vdpau_hwaccel_select="h264_decoder"
1793 mpeg1_vdpau_hwaccel_deps="vdpau"
1794 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1795 mpeg2_dxva2_hwaccel_deps="dxva2"
1796 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1797 mpeg2_vaapi_hwaccel_deps="vaapi"
1798 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1799 mpeg2_vdpau_hwaccel_deps="vdpau"
1800 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1801 mpeg4_vaapi_hwaccel_deps="vaapi"
1802 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1803 mpeg4_vdpau_hwaccel_deps="vdpau"
1804 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1805 vc1_dxva2_hwaccel_deps="dxva2"
1806 vc1_dxva2_hwaccel_select="vc1_decoder"
1807 vc1_vaapi_hwaccel_deps="vaapi"
1808 vc1_vaapi_hwaccel_select="vc1_decoder"
1809 vc1_vdpau_hwaccel_deps="vdpau"
1810 vc1_vdpau_hwaccel_select="vc1_decoder"
1811 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1812 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1813 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1814
1815 # parsers
1816 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1817 mpeg4video_parser_select="error_resilience mpegvideo"
1818 mpegvideo_parser_select="error_resilience mpegvideo"
1819 vc1_parser_select="mpegvideo"
1820
1821 # external libraries
1822 libfaac_encoder_deps="libfaac"
1823 libfaac_encoder_select="audio_frame_queue"
1824 libfdk_aac_decoder_deps="libfdk_aac"
1825 libfdk_aac_encoder_deps="libfdk_aac"
1826 libfdk_aac_encoder_select="audio_frame_queue"
1827 libgsm_decoder_deps="libgsm"
1828 libgsm_encoder_deps="libgsm"
1829 libgsm_ms_decoder_deps="libgsm"
1830 libgsm_ms_encoder_deps="libgsm"
1831 libilbc_decoder_deps="libilbc"
1832 libilbc_encoder_deps="libilbc"
1833 libmp3lame_encoder_deps="libmp3lame"
1834 libmp3lame_encoder_select="audio_frame_queue"
1835 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1836 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1837 libopencore_amrnb_encoder_select="audio_frame_queue"
1838 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1839 libopenjpeg_decoder_deps="libopenjpeg"
1840 libopenjpeg_encoder_deps="libopenjpeg"
1841 libopus_decoder_deps="libopus"
1842 libopus_encoder_deps="libopus"
1843 libopus_encoder_select="audio_frame_queue"
1844 libschroedinger_decoder_deps="libschroedinger"
1845 libschroedinger_encoder_deps="libschroedinger"
1846 libspeex_decoder_deps="libspeex"
1847 libspeex_encoder_deps="libspeex"
1848 libspeex_encoder_select="audio_frame_queue"
1849 libtheora_encoder_deps="libtheora"
1850 libvo_aacenc_encoder_deps="libvo_aacenc"
1851 libvo_aacenc_encoder_select="audio_frame_queue"
1852 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1853 libvorbis_encoder_deps="libvorbis"
1854 libvorbis_encoder_select="audio_frame_queue"
1855 libvpx_vp8_decoder_deps="libvpx"
1856 libvpx_vp8_encoder_deps="libvpx"
1857 libvpx_vp9_decoder_deps="libvpx"
1858 libvpx_vp9_encoder_deps="libvpx"
1859 libwavpack_encoder_deps="libwavpack"
1860 libx264_encoder_deps="libx264"
1861 libxavs_encoder_deps="libxavs"
1862 libxvid_encoder_deps="libxvid"
1863
1864 # demuxers / muxers
1865 ac3_demuxer_select="ac3_parser"
1866 asf_demuxer_select="riffdec"
1867 asf_muxer_select="riffenc"
1868 asf_stream_muxer_select="asf_muxer"
1869 avi_demuxer_select="riffdec"
1870 avi_muxer_select="riffenc"
1871 avisynth_demuxer_deps="avisynth"
1872 avisynth_demuxer_select="riffdec"
1873 caf_demuxer_select="riffdec"
1874 dirac_demuxer_select="dirac_parser"
1875 dxa_demuxer_select="riffdec"
1876 eac3_demuxer_select="ac3_parser"
1877 f4v_muxer_select="mov_muxer"
1878 flac_demuxer_select="flac_parser"
1879 hds_muxer_select="flv_muxer"
1880 hls_muxer_select="mpegts_muxer"
1881 ipod_muxer_select="mov_muxer"
1882 ismv_muxer_select="mov_muxer"
1883 matroska_audio_muxer_select="matroska_muxer"
1884 matroska_demuxer_select="riffdec"
1885 matroska_demuxer_suggest="bzlib lzo zlib"
1886 matroska_muxer_select="riffenc"
1887 mmf_muxer_select="riffenc"
1888 mov_demuxer_select="riffdec"
1889 mov_demuxer_suggest="zlib"
1890 mov_muxer_select="riffenc rtpenc_chain"
1891 mp3_demuxer_select="mpegaudio_parser"
1892 mp4_muxer_select="mov_muxer"
1893 mpegts_muxer_select="adts_muxer latm_muxer"
1894 mpegtsraw_demuxer_select="mpegts_demuxer"
1895 mxf_d10_muxer_select="mxf_muxer"
1896 nut_muxer_select="riffenc"
1897 nuv_demuxer_select="riffdec"
1898 ogg_demuxer_select="golomb"
1899 psp_muxer_select="mov_muxer"
1900 rtp_demuxer_select="sdp_demuxer"
1901 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1902 rtsp_demuxer_select="http_protocol rtpdec"
1903 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1904 sap_demuxer_select="sdp_demuxer"
1905 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1906 sdp_demuxer_select="rtpdec"
1907 smoothstreaming_muxer_select="ismv_muxer"
1908 spdif_muxer_select="aac_parser"
1909 tak_demuxer_select="tak_parser"
1910 tg2_muxer_select="mov_muxer"
1911 tgp_muxer_select="mov_muxer"
1912 w64_demuxer_select="wav_demuxer"
1913 wav_demuxer_select="riffdec"
1914 wav_muxer_select="riffenc"
1915 webm_muxer_select="riffenc"
1916 wtv_demuxer_select="riffdec"
1917 xmv_demuxer_select="riffdec"
1918 xwma_demuxer_select="riffdec"
1919
1920 # indevs / outdevs
1921 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1922 alsa_outdev_deps="alsa_asoundlib_h"
1923 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1924 dv1394_indev_deps="dv1394"
1925 dv1394_indev_select="dv_demuxer"
1926 fbdev_indev_deps="linux_fb_h"
1927 jack_indev_deps="jack_jack_h pthreads"
1928 libcdio_indev_deps="libcdio"
1929 libdc1394_indev_deps="libdc1394"
1930 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1931 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1932 pulse_indev_deps="libpulse"
1933 sndio_indev_deps="sndio_h"
1934 sndio_outdev_deps="sndio_h"
1935 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1936 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1937 vfwcap_indev_extralibs="-lavicap32"
1938 x11grab_indev_deps="x11grab XShmCreateImage"
1939
1940 # protocols
1941 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1942 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1943 ffrtmpcrypt_protocol_select="tcp_protocol"
1944 ffrtmphttp_protocol_deps="!librtmp_protocol"
1945 ffrtmphttp_protocol_select="http_protocol"
1946 gopher_protocol_select="network"
1947 httpproxy_protocol_select="tcp_protocol"
1948 http_protocol_select="tcp_protocol"
1949 https_protocol_select="tls_protocol"
1950 librtmp_protocol_deps="librtmp"
1951 librtmpe_protocol_deps="librtmp"
1952 librtmps_protocol_deps="librtmp"
1953 librtmpt_protocol_deps="librtmp"
1954 librtmpte_protocol_deps="librtmp"
1955 mmsh_protocol_select="http_protocol"
1956 mmst_protocol_select="network"
1957 rtmp_protocol_deps="!librtmp_protocol"
1958 rtmp_protocol_select="tcp_protocol"
1959 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1960 rtmps_protocol_deps="!librtmp_protocol"
1961 rtmps_protocol_select="tls_protocol"
1962 rtmpt_protocol_select="ffrtmphttp_protocol"
1963 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1964 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1965 rtp_protocol_select="udp_protocol"
1966 sctp_protocol_deps="struct_sctp_event_subscribe"
1967 sctp_protocol_select="network"
1968 srtp_protocol_select="rtp_protocol"
1969 tcp_protocol_select="network"
1970 tls_protocol_deps_any="openssl gnutls"
1971 tls_protocol_select="tcp_protocol"
1972 udp_protocol_select="network"
1973 unix_protocol_deps="sys_un_h"
1974 unix_protocol_select="network"
1975
1976 # filters
1977 blackframe_filter_deps="gpl"
1978 boxblur_filter_deps="gpl"
1979 cropdetect_filter_deps="gpl"
1980 delogo_filter_deps="gpl"
1981 drawtext_filter_deps="libfreetype"
1982 frei0r_filter_deps="frei0r dlopen strtok_r"
1983 frei0r_filter_extralibs='$ldl'
1984 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1985 frei0r_src_filter_extralibs='$ldl'
1986 hqdn3d_filter_deps="gpl"
1987 interlace_filter_deps="gpl"
1988 resample_filter_deps="avresample"
1989 ocv_filter_deps="libopencv"
1990 scale_filter_deps="swscale"
1991 yadif_filter_deps="gpl"
1992
1993 # examples
1994 output_example_deps="avcodec avformat avutil swscale"
1995 transcode_aac_example_deps="avcodec avformat avresample"
1996
1997 # libraries
1998 avcodec_deps="avutil"
1999 avdevice_deps="avutil avcodec avformat"
2000 avfilter_deps="avutil"
2001 avformat_deps="avutil avcodec"
2002 avresample_deps="avutil"
2003 swscale_deps="avutil"
2004
2005 # programs
2006 avconv_deps="avcodec avfilter avformat avresample swscale"
2007 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2008                fps_filter null_filter resample_filter scale_filter
2009                setpts_filter trim_filter"
2010 avplay_deps="avcodec avformat avresample swscale sdl"
2011 avplay_select="rdft"
2012 avprobe_deps="avcodec avformat"
2013 avserver_deps="avformat fork !shared"
2014 avserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2015 avserver_extralibs='$ldl'
2016
2017 # documentation
2018 pod2man_deps="doc"
2019 texi2html_deps="doc"
2020
2021 # default parameters
2022
2023 logfile="config.log"
2024
2025 # installation paths
2026 prefix_default="/usr/local"
2027 bindir_default='${prefix}/bin'
2028 datadir_default='${prefix}/share/avconv'
2029 docdir_default='${prefix}/share/doc/libav'
2030 incdir_default='${prefix}/include'
2031 libdir_default='${prefix}/lib'
2032 mandir_default='${prefix}/share/man'
2033 shlibdir_default="$libdir_default"
2034
2035 # toolchain
2036 ar_default="ar"
2037 cc_default="gcc"
2038 host_cc_default="gcc"
2039 cp_f="cp -f"
2040 ln_s="ln -s -f"
2041 nm_default="nm -g"
2042 objformat="elf"
2043 pkg_config_default=pkg-config
2044 ranlib="ranlib"
2045 strip="strip"
2046 yasmexe="yasm"
2047
2048 nogas=":"
2049
2050 # machine
2051 arch_default=$(uname -m)
2052 cpu="generic"
2053
2054 # OS
2055 target_os_default=$(tolower $(uname -s))
2056 host_os=$target_os_default
2057
2058 # configurable options
2059 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2060
2061 enable asm
2062 enable debug
2063 enable doc
2064 enable optimizations
2065 enable safe_bitstream_reader
2066 enable static
2067 enable swscale_alpha
2068
2069 # By default, enable only those hwaccels that have no external dependencies.
2070 enable dxva2 vdpau
2071
2072 # build settings
2073 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2074 LIBPREF="lib"
2075 LIBSUF=".a"
2076 FULLNAME='$(NAME)$(BUILDSUF)'
2077 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2078 SLIBPREF="lib"
2079 SLIBSUF=".so"
2080 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2081 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2082 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2083 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2084 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2085 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2086
2087 asflags_filter=echo
2088 cflags_filter=echo
2089 ldflags_filter=echo
2090
2091 AS_C='-c'
2092 AS_O='-o $@'
2093 CC_C='-c'
2094 CC_E='-E -o $@'
2095 CC_O='-o $@'
2096 LD_O='-o $@'
2097 LD_LIB='-l%'
2098 LD_PATH='-L'
2099 HOSTCC_C='-c'
2100 HOSTCC_E='-E -o $@'
2101 HOSTCC_O='-o $@'
2102 HOSTLD_O='-o $@'
2103
2104 host_cflags='-O3 -g'
2105 host_cppflags='-D_ISOC99_SOURCE'
2106 host_libs='-lm'
2107 host_cflags_filter=echo
2108 host_ldflags_filter=echo
2109
2110 target_path='$(CURDIR)'
2111
2112 # since the object filename is not given with the -MM flag, the compiler
2113 # is only able to print the basename, and we must add the path ourselves
2114 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2115 DEPFLAGS='-MM'
2116
2117 # find source path
2118 if test -f configure; then
2119     source_path=.
2120 else
2121     source_path=$(cd $(dirname "$0"); pwd)
2122     echo "$source_path" | grep -q '[[:blank:]]' &&
2123         die "Out of tree builds are impossible with whitespace in source path."
2124     test -e "$source_path/config.h" &&
2125         die "Out of tree builds are impossible with config.h in source dir."
2126 fi
2127
2128 for v in "$@"; do
2129     r=${v#*=}
2130     l=${v%"$r"}
2131     r=$(sh_quote "$r")
2132     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2133 done
2134
2135 find_things(){
2136     thing=$1
2137     pattern=$2
2138     file=$source_path/$3
2139     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2140 }
2141
2142 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2143 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2144 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2145 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2146 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2147 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2148 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2149 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2150 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2151 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2152 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2153
2154 ALL_COMPONENTS="
2155     $BSF_LIST
2156     $DECODER_LIST
2157     $DEMUXER_LIST
2158     $ENCODER_LIST
2159     $FILTER_LIST
2160     $HWACCEL_LIST
2161     $INDEV_LIST
2162     $MUXER_LIST
2163     $OUTDEV_LIST
2164     $PARSER_LIST
2165     $PROTOCOL_LIST
2166 "
2167
2168 for n in $COMPONENT_LIST; do
2169     v=$(toupper ${n%s})_LIST
2170     eval enable \$$v
2171     eval ${n}_if_any="\$$v"
2172 done
2173
2174 enable $ARCH_EXT_LIST
2175
2176 die_unknown(){
2177     echo "Unknown option \"$1\"."
2178     echo "See $0 --help for available options."
2179     exit 1
2180 }
2181
2182 print_3_columns() {
2183     cat | tr ' ' '\n' | sort | pr -r -3 -t
2184 }
2185
2186 show_list() {
2187     suffix=_$1
2188     shift
2189     echo $* | sed s/$suffix//g | print_3_columns
2190     exit 0
2191 }
2192
2193 rand_list(){
2194     IFS=', '
2195     set -- $*
2196     unset IFS
2197     for thing; do
2198         comp=${thing%:*}
2199         prob=${thing#$comp}
2200         prob=${prob#:}
2201         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2202         echo "prob ${prob:-0.5}"
2203         printf '%s\n' $comp
2204     done
2205 }
2206
2207 do_random(){
2208     action=$1
2209     shift
2210     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2211     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2212 }
2213
2214 for opt do
2215     optval="${opt#*=}"
2216     case "$opt" in
2217         --extra-ldflags=*)
2218             add_ldflags $optval
2219         ;;
2220         --extra-libs=*)
2221             add_extralibs $optval
2222         ;;
2223         --disable-devices)
2224             disable $INDEV_LIST $OUTDEV_LIST
2225         ;;
2226         --enable-debug=*)
2227             debuglevel="$optval"
2228         ;;
2229         --disable-programs)
2230             disable $PROGRAM_LIST
2231         ;;
2232         --disable-everything)
2233             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2234         ;;
2235         --disable-all)
2236             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2237             disable $LIBRARY_LIST $PROGRAM_LIST doc
2238         ;;
2239         --enable-random|--disable-random)
2240             action=${opt%%-random}
2241             do_random ${action#--} $COMPONENT_LIST
2242         ;;
2243         --enable-random=*|--disable-random=*)
2244             action=${opt%%-random=*}
2245             do_random ${action#--} $optval
2246         ;;
2247         --enable-*=*|--disable-*=*)
2248             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2249             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2250             eval list=\$$(toupper $thing)_LIST
2251             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2252             $action $(filter "$name" $list)
2253         ;;
2254         --enable-?*|--disable-?*)
2255             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2256             if is_in $option $COMPONENT_LIST; then
2257                 test $action = disable && action=unset
2258                 eval $action \$$(toupper ${option%s})_LIST
2259             elif is_in $option $CMDLINE_SELECT; then
2260                 $action $option
2261             else
2262                 die_unknown $opt
2263             fi
2264         ;;
2265         --list-*)
2266             NAME="${opt#--list-}"
2267             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2268             NAME=${NAME%s}
2269             eval show_list $NAME \$$(toupper $NAME)_LIST
2270         ;;
2271         --help|-h) show_help
2272         ;;
2273         *)
2274             optname="${opt%%=*}"
2275             optname="${optname#--}"
2276             optname=$(echo "$optname" | sed 's/-/_/g')
2277             if is_in $optname $CMDLINE_SET; then
2278                 eval $optname='$optval'
2279             elif is_in $optname $CMDLINE_APPEND; then
2280                 append $optname "$optval"
2281             else
2282                 die_unknown $opt
2283             fi
2284         ;;
2285     esac
2286 done
2287
2288 disabled logging && logfile=/dev/null
2289
2290 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2291 set >> $logfile
2292
2293 test -n "$cross_prefix" && enable cross_compile
2294
2295 if enabled cross_compile; then
2296     test -n "$arch" && test -n "$target_os" ||
2297         die "Must specify target arch and OS when cross-compiling"
2298 fi
2299
2300 ar_default="${cross_prefix}${ar_default}"
2301 cc_default="${cross_prefix}${cc_default}"
2302 nm_default="${cross_prefix}${nm_default}"
2303 pkg_config_default="${cross_prefix}${pkg_config_default}"
2304 ranlib="${cross_prefix}${ranlib}"
2305 strip="${cross_prefix}${strip}"
2306
2307 sysinclude_default="${sysroot}/usr/include"
2308
2309 case "$toolchain" in
2310     clang-asan)
2311         cc_default="clang"
2312         add_cflags  -fsanitize=address
2313         add_ldflags -fsanitize=address
2314     ;;
2315     clang-tsan)
2316         cc_default="clang"
2317         add_cflags  -fsanitize=thread -pie
2318         add_ldflags -fsanitize=thread -pie
2319     ;;
2320     gcc-asan)
2321         cc_default="gcc"
2322         add_cflags  -fsanitize=address
2323         add_ldflags -fsanitize=address
2324     ;;
2325     gcc-tsan)
2326         cc_default="gcc"
2327         add_cflags  -fsanitize=thread -pie -fPIC
2328         add_ldflags -fsanitize=thread -pie -fPIC
2329     ;;
2330     valgrind-massif)
2331         target_exec_default="valgrind"
2332         target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2333     ;;
2334     valgrind-memcheck)
2335         target_exec_default="valgrind"
2336         target_exec_args="--track-origins=yes --leak-check=full"
2337     ;;
2338     msvc)
2339         # Check whether the current MSVC version needs the C99 converter.
2340         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2341         # support enough of C99 to build libav. Default to the new
2342         # behaviour if the regexp was unable to match anything, since this
2343         # successfully parses the version number of existing supported
2344         # versions that require the converter (MSVC 2010 and 2012).
2345         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2346         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2347             cc_default="cl"
2348         else
2349             cc_default="c99wrap cl"
2350         fi
2351         ld_default="link"
2352         nm_default="dumpbin -symbols"
2353         ar_default="lib"
2354         target_os_default="win32"
2355         # Use a relative path for TMPDIR. This makes sure all the
2356         # ffconf temp files are written with a relative path, avoiding
2357         # issues with msys/win32 path conversion for MSVC parameters
2358         # such as -Fo<file> or -out:<file>.
2359         TMPDIR=.
2360     ;;
2361     icl)
2362         cc_default="icl"
2363         ld_default="xilink"
2364         nm_default="dumpbin -symbols"
2365         ar_default="xilib"
2366         target_os_default="win32"
2367         TMPDIR=.
2368     ;;
2369     gcov)
2370         add_cflags  -fprofile-arcs -ftest-coverage
2371         add_ldflags -fprofile-arcs -ftest-coverage
2372     ;;
2373     hardened)
2374         add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
2375         add_ldflags -Wl,-z,relro -Wl,-z,now
2376     ;;
2377     ?*)
2378         die "Unknown toolchain $toolchain"
2379     ;;
2380 esac
2381
2382 set_default arch cc pkg_config sysinclude target_exec target_os
2383 enabled cross_compile || host_cc_default=$cc
2384 set_default host_cc
2385
2386 if ! $pkg_config --version >/dev/null 2>&1; then
2387     warn "$pkg_config not found, library detection may fail."
2388     pkg_config=false
2389 fi
2390
2391 exesuf() {
2392     case $1 in
2393         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2394     esac
2395 }
2396
2397 EXESUF=$(exesuf $target_os)
2398 HOSTEXESUF=$(exesuf $host_os)
2399
2400 # set temporary file name
2401 : ${TMPDIR:=$TEMPDIR}
2402 : ${TMPDIR:=$TMP}
2403 : ${TMPDIR:=/tmp}
2404
2405 if ! check_cmd mktemp -u XXXXXX; then
2406     # simple replacement for missing mktemp
2407     # NOT SAFE FOR GENERAL USE
2408     mktemp(){
2409         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2410     }
2411 fi
2412
2413 tmpfile(){
2414     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2415         (set -C; exec > $tmp) 2>/dev/null ||
2416         die "Unable to create temporary file in $TMPDIR."
2417     append TMPFILES $tmp
2418     eval $1=$tmp
2419 }
2420
2421 trap 'rm -f -- $TMPFILES' EXIT
2422
2423 tmpfile TMPASM .asm
2424 tmpfile TMPC   .c
2425 tmpfile TMPE   $EXESUF
2426 tmpfile TMPH   .h
2427 tmpfile TMPO   .o
2428 tmpfile TMPS   .S
2429 tmpfile TMPSH  .sh
2430 tmpfile TMPV   .ver
2431
2432 unset -f mktemp
2433
2434 chmod +x $TMPE
2435
2436 # make sure we can execute files in $TMPDIR
2437 cat > $TMPSH 2>> $logfile <<EOF
2438 #! /bin/sh
2439 EOF
2440 chmod +x $TMPSH >> $logfile 2>&1
2441 if ! $TMPSH >> $logfile 2>&1; then
2442     cat <<EOF
2443 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2444 variable to another directory and make sure that it is not mounted noexec.
2445 EOF
2446     die "Sanity test failed."
2447 fi
2448
2449 ccc_flags(){
2450     for flag; do
2451         case $flag in
2452             -std=c99)           echo -c99                       ;;
2453             -mcpu=*)            echo -arch ${flag#*=}           ;;
2454             -mieee)             echo -ieee                      ;;
2455             -O*|-fast)          echo $flag                      ;;
2456             -fno-math-errno)    echo -assume nomath_errno       ;;
2457             -g)                 echo -g3                        ;;
2458             -Wall)              echo -msg_enable level2         ;;
2459             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2460             -Wl,*)              echo $flag                      ;;
2461             -f*|-W*)                                            ;;
2462             *)                  echo $flag                      ;;
2463         esac
2464    done
2465 }
2466
2467 cparser_flags(){
2468     for flag; do
2469         case $flag in
2470             -Wno-switch)             echo -Wno-switch-enum ;;
2471             -Wno-format-zero-length) ;;
2472             -Wdisabled-optimization) ;;
2473             -Wno-pointer-sign)       echo -Wno-other ;;
2474             *)                       echo $flag ;;
2475         esac
2476     done
2477 }
2478
2479 msvc_common_flags(){
2480     for flag; do
2481         case $flag in
2482             # In addition to specifying certain flags under the compiler
2483             # specific filters, they must be specified here as well or else the
2484             # generic catch all at the bottom will print the original flag.
2485             -Wall)                ;;
2486             -std=c99)             ;;
2487             # Common flags
2488             -fomit-frame-pointer) ;;
2489             -g)                   echo -Z7 ;;
2490             -fno-math-errno)      ;;
2491             -fno-common)          ;;
2492             -fno-signed-zeros)    ;;
2493             -fPIC)                ;;
2494             -mthumb)              ;;
2495             -march=*)             ;;
2496             -lz)                  echo zlib.lib ;;
2497             -lavifil32)           echo vfw32.lib ;;
2498             -lavicap32)           echo vfw32.lib user32.lib ;;
2499             -l*)                  echo ${flag#-l}.lib ;;
2500             *)                    echo $flag ;;
2501         esac
2502     done
2503 }
2504
2505 msvc_flags(){
2506     msvc_common_flags "$@"
2507     for flag; do
2508         case $flag in
2509             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
2510                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2511                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2512                                        -wd4273 ;;
2513         esac
2514     done
2515 }
2516
2517 icl_flags(){
2518     msvc_common_flags "$@"
2519     for flag; do
2520         case $flag in
2521             # Despite what Intel's documentation says -Wall, which is supported
2522             # on Windows, does enable remarks so disable them here.
2523             -Wall)                echo $flag -Qdiag-disable:remark ;;
2524             -std=c99)             echo -Qstd=c99 ;;
2525         esac
2526     done
2527 }
2528
2529 pgi_flags(){
2530     for flag; do
2531         case $flag in
2532             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2533             -fomit-frame-pointer) echo -Mnoframe ;;
2534             -g)                   echo -gopt ;;
2535             *)                    echo $flag ;;
2536         esac
2537     done
2538 }
2539
2540 suncc_flags(){
2541     for flag; do
2542         case $flag in
2543             -march=*|-mcpu=*)
2544                 case "${flag#*=}" in
2545                     native)                   echo -xtarget=native       ;;
2546                     v9|niagara)               echo -xarch=sparc          ;;
2547                     ultrasparc)               echo -xarch=sparcvis       ;;
2548                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2549                     i586|pentium)             echo -xchip=pentium        ;;
2550                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2551                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2552                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2553                     pentium4*)          echo -xtarget=pentium4           ;;
2554                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2555                     *-sse3)             echo -xarch=sse3                 ;;
2556                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2557                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2558                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2559                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2560                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
2561                     k8|opteron|athlon64|athlon-fx)
2562                                                echo -xarch=sse2a         ;;
2563                     athlon*)                   echo -xarch=pentium_proa  ;;
2564                 esac
2565                 ;;
2566             -std=c99)             echo -xc99              ;;
2567             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2568             -fPIC)                echo -KPIC -xcode=pic32 ;;
2569             -W*,*)                echo $flag              ;;
2570             -f*-*|-W*|-mimpure-text)                      ;;
2571             -shared)              echo -G                 ;;
2572             *)                    echo $flag              ;;
2573         esac
2574     done
2575 }
2576
2577 tms470_flags(){
2578     for flag; do
2579         case $flag in
2580             -march=*|-mcpu=*)
2581                 case "${flag#*=}" in
2582                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2583                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2584                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2585                     armv6*|arm11*)          echo -mv=6   ;;
2586                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2587                                             echo -mv=5e  ;;
2588                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2589                 esac
2590                 ;;
2591             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2592             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2593             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2594             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2595             -msoft-float)   echo --float_support=vfplib       ;;
2596             -O[0-3]|-mf=*)  echo $flag                        ;;
2597             -g)             echo -g -mn                       ;;
2598             -pds=*)         echo $flag                        ;;
2599             -D*|-I*)        echo $flag                        ;;
2600             --gcc|--abi=*)  echo $flag                        ;;
2601             -me)            echo $flag                        ;;
2602         esac
2603     done
2604 }
2605
2606 probe_cc(){
2607     pfx=$1
2608     _cc=$2
2609
2610     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2611     unset _ld_o _ldflags _ld_lib _ld_path
2612     unset _depflags _DEPCMD _DEPFLAGS
2613     _flags_filter=echo
2614
2615     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2616         _type=llvm_gcc
2617         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2618         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2619         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2620         _cflags_speed='-O3'
2621         _cflags_size='-Os'
2622     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2623         _type=gcc
2624         gcc_version=$($_cc --version | head -n1)
2625         gcc_basever=$($_cc -dumpversion)
2626         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2627         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2628         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2629         if ! $_cc -dumpversion | grep -q '^2\.'; then
2630             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2631         fi
2632         _cflags_speed='-O3'
2633         _cflags_size='-Os'
2634     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2635         _type=icc
2636         _ident=$($_cc --version | head -n1)
2637         _depflags='-MMD'
2638         _cflags_speed='-O3'
2639         _cflags_size='-Os'
2640         _cflags_noopt='-O1'
2641     elif $_cc -v 2>&1 | grep -q xlc; then
2642         _type=xlc
2643         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2644         _cflags_speed='-O5'
2645         _cflags_size='-O5 -qcompact'
2646     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2647         _type=ccc
2648         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2649         _DEPFLAGS='-M'
2650         _cflags_speed='-fast'
2651         _cflags_size='-O1'
2652         _flags_filter=ccc_flags
2653     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2654         test -d "$sysroot" || die "No valid sysroot specified."
2655         _type=armcc
2656         _ident=$($_cc --vsn | head -n1)
2657         armcc_conf="$PWD/armcc.conf"
2658         $_cc --arm_linux_configure                 \
2659              --arm_linux_config_file="$armcc_conf" \
2660              --configure_sysroot="$sysroot"        \
2661              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2662              die "Error creating armcc configuration file."
2663         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2664         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2665         as_default="${cross_prefix}gcc"
2666         _depflags='-MMD'
2667         _cflags_speed='-O3'
2668         _cflags_size='-Os'
2669     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2670         _type=tms470
2671         _ident=$($_cc -version | head -n1 | tr -s ' ')
2672         _flags='--gcc --abi=eabi -me'
2673         _cc_e='-ppl -fe=$@'
2674         _cc_o='-fe=$@'
2675         _depflags='-ppa -ppd=$(@:.o=.d)'
2676         _cflags_speed='-O3 -mf=5'
2677         _cflags_size='-O3 -mf=2'
2678         _flags_filter=tms470_flags
2679     elif $_cc -v 2>&1 | grep -q clang; then
2680         _type=clang
2681         _ident=$($_cc --version | head -n1)
2682         _depflags='-MMD'
2683         _cflags_speed='-O3'
2684         _cflags_size='-Os'
2685     elif $_cc -V 2>&1 | grep -q Sun; then
2686         _type=suncc
2687         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2688         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2689         _DEPFLAGS='-xM1 -xc99'
2690         _ldflags='-std=c99'
2691         _cflags_speed='-O5'
2692         _cflags_size='-O5 -xspace'
2693         _flags_filter=suncc_flags
2694     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2695         _type=pathscale
2696         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2697         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2698         _cflags_speed='-O2'
2699         _cflags_size='-Os'
2700         _flags_filter='filter_out -Wdisabled-optimization'
2701     elif $_cc -v 2>&1 | grep -q Open64; then
2702         _type=open64
2703         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2704         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2705         _cflags_speed='-O2'
2706         _cflags_size='-Os'
2707         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2708     elif $_cc -V 2>&1 | grep -q Portland; then
2709         _type=pgi
2710         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2711         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2712         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2713         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2714         _cflags_noopt="-O1"
2715         _flags_filter=pgi_flags
2716     elif $_cc 2>&1 | grep -q Microsoft; then
2717         _type=msvc
2718         _ident=$($cc 2>&1 | head -n1)
2719         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2720         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2721         _cflags_speed="-O2"
2722         _cflags_size="-O1"
2723         if $_cc 2>&1 | grep -q Linker; then
2724             _ld_o='-out:$@'
2725         else
2726             _ld_o='-Fe$@'
2727         fi
2728         _cc_o='-Fo$@'
2729         _cc_e='-P -Fi$@'
2730         _flags_filter=msvc_flags
2731         _ld_lib='lib%.a'
2732         _ld_path='-libpath:'
2733         _flags='-nologo'
2734         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2735         if [ $pfx = hostcc ]; then
2736             append _cflags -Dsnprintf=_snprintf
2737         fi
2738     elif $_cc 2>&1 | grep -q Intel; then
2739         _type=icl
2740         _ident=$($cc 2>&1 | head -n1)
2741         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2742         # Not only is O3 broken on 13.x+ but it is slower on all previous
2743         # versions (tested) as well.
2744         _cflags_speed="-O2"
2745         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
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'
2753         _flags_filter=icl_flags
2754         _ld_lib='lib%.a'
2755         _ld_path='-libpath:'
2756         # -Qdiag-error to make icl error when seeing certain unknown arguments
2757         _flags='-nologo -Qdiag-error:4044,10157'
2758         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
2759         # with MSVC which enables it by default.
2760         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS'
2761         if [ $pfx = hostcc ]; then
2762             append _cflags -Dsnprintf=_snprintf
2763         fi
2764     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
2765         _type=cparser
2766         _ident=$($_cc --version | head -n1)
2767         _depflags='-MMD'
2768         _cflags_speed='-O4'
2769         _cflags_size='-O2'
2770         _flags_filter=cparser_flags
2771     fi
2772
2773     eval ${pfx}_type=\$_type
2774     eval ${pfx}_ident=\$_ident
2775 }
2776
2777 set_ccvars(){
2778     eval ${1}_C=\${_cc_c-\${${1}_C}}
2779     eval ${1}_E=\${_cc_e-\${${1}_E}}
2780     eval ${1}_O=\${_cc_o-\${${1}_O}}
2781
2782     if [ -n "$_depflags" ]; then
2783         eval ${1}_DEPFLAGS=\$_depflags
2784     else
2785         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2786         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2787         eval DEP${1}FLAGS=\$_flags
2788     fi
2789 }
2790
2791 probe_cc cc "$cc"
2792 cflags_filter=$_flags_filter
2793 cflags_speed=$_cflags_speed
2794 cflags_size=$_cflags_size
2795 cflags_noopt=$_cflags_noopt
2796 add_cflags $_flags $_cflags
2797 cc_ldflags=$_ldflags
2798 set_ccvars CC
2799
2800 probe_cc hostcc "$host_cc"
2801 host_cflags_filter=$_flags_filter
2802 add_host_cflags  $_flags $_cflags
2803 set_ccvars HOSTCC
2804
2805 test -n "$cc_type" && enable $cc_type ||
2806     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2807
2808 : ${as_default:=$cc}
2809 : ${dep_cc_default:=$cc}
2810 : ${ld_default:=$cc}
2811 : ${host_ld_default:=$host_cc}
2812 set_default ar as dep_cc ld host_ld
2813
2814 probe_cc as "$as"
2815 asflags_filter=$_flags_filter
2816 add_asflags $_flags $_cflags
2817 set_ccvars AS
2818
2819 probe_cc ld "$ld"
2820 ldflags_filter=$_flags_filter
2821 add_ldflags $_flags $_ldflags
2822 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2823 LD_O=${_ld_o-$LD_O}
2824 LD_LIB=${_ld_lib-$LD_LIB}
2825 LD_PATH=${_ld_path-$LD_PATH}
2826
2827 probe_cc hostld "$host_ld"
2828 host_ldflags_filter=$_flags_filter
2829 add_host_ldflags $_flags $_ldflags
2830 HOSTLD_O=${_ld_o-$HOSTLD_O}
2831
2832 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2833     probe_cc depcc "$dep_cc"
2834     CCDEP=${_DEPCMD:-$DEPCMD}
2835     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2836     DEPCCFLAGS=$_flags
2837 fi
2838
2839 if $ar 2>&1 | grep -q Microsoft; then
2840     arflags="-nologo"
2841     ar_o='-out:$@'
2842 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2843     arflags="rq"
2844     ar_o='$@'
2845 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
2846     arflags='-Xany -r -c'
2847     ar_o='$@'
2848 else
2849     arflags="rc"
2850     ar_o='$@'
2851 fi
2852
2853 add_cflags $extra_cflags
2854 add_asflags $extra_cflags
2855
2856 if test -n "$sysroot"; then
2857     case "$cc_type" in
2858         gcc|llvm_gcc|clang)
2859             add_cppflags --sysroot="$sysroot"
2860             add_ldflags --sysroot="$sysroot"
2861         ;;
2862         tms470)
2863             add_cppflags -I"$sysinclude"
2864             add_ldflags  --sysroot="$sysroot"
2865         ;;
2866     esac
2867 fi
2868
2869 if test "$cpu" = host; then
2870     enabled cross_compile &&
2871         die "--cpu=host makes no sense when cross-compiling."
2872
2873     case "$cc_type" in
2874         gcc|llvm_gcc)
2875             check_native(){
2876                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2877                 sed -n "/cc1.*$1=/{
2878                             s/.*$1=\\([^ ]*\\).*/\\1/
2879                             p
2880                             q
2881                         }" $TMPE
2882             }
2883             cpu=$(check_native -march || check_native -mcpu)
2884         ;;
2885     esac
2886
2887     test "${cpu:-host}" = host &&
2888         die "--cpu=host not supported with compiler $cc"
2889 fi
2890
2891 # Deal with common $arch aliases
2892 case "$arch" in
2893     aarch64|arm64)
2894         arch="aarch64"
2895     ;;
2896     arm*)
2897         arch="arm"
2898     ;;
2899     mips*|IP*)
2900         arch="mips"
2901     ;;
2902     parisc*|hppa*)
2903         arch="parisc"
2904     ;;
2905     "Power Macintosh"|ppc*|powerpc*)
2906         arch="ppc"
2907     ;;
2908     s390|s390x)
2909         arch="s390"
2910     ;;
2911     sh4|sh)
2912         arch="sh4"
2913     ;;
2914     sun4u|sparc*)
2915         arch="sparc"
2916     ;;
2917     tilegx|tile-gx)
2918         arch="tilegx"
2919     ;;
2920     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2921         arch="x86"
2922     ;;
2923 esac
2924
2925 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2926 enable $arch
2927
2928 # Add processor-specific flags
2929 if enabled aarch64; then
2930
2931     case $cpu in
2932         armv*)
2933             cpuflags="-march=$cpu"
2934         ;;
2935         *)
2936             cpuflags="-mcpu=$cpu"
2937         ;;
2938     esac
2939
2940 elif enabled alpha; then
2941
2942     cpuflags="-mcpu=$cpu"
2943
2944 elif enabled arm; then
2945
2946     check_arm_arch() {
2947         check_cpp_condition stddef.h \
2948             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2949             $cpuflags
2950     }
2951
2952     probe_arm_arch() {
2953         if   check_arm_arch 4;        then echo armv4;
2954         elif check_arm_arch 4T;       then echo armv4t;
2955         elif check_arm_arch 5;        then echo armv5;
2956         elif check_arm_arch 5E;       then echo armv5e;
2957         elif check_arm_arch 5T;       then echo armv5t;
2958         elif check_arm_arch 5TE;      then echo armv5te;
2959         elif check_arm_arch 5TEJ;     then echo armv5te;
2960         elif check_arm_arch 6;        then echo armv6;
2961         elif check_arm_arch 6J;       then echo armv6j;
2962         elif check_arm_arch 6K;       then echo armv6k;
2963         elif check_arm_arch 6Z;       then echo armv6z;
2964         elif check_arm_arch 6ZK;      then echo armv6zk;
2965         elif check_arm_arch 6T2;      then echo armv6t2;
2966         elif check_arm_arch 7;        then echo armv7;
2967         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2968         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2969         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2970         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2971         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2972         fi
2973     }
2974
2975     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2976
2977     case $cpu in
2978         armv*)
2979             cpuflags="-march=$cpu"
2980             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2981         ;;
2982         *)
2983             cpuflags="-mcpu=$cpu"
2984             case $cpu in
2985                 cortex-a*)                               subarch=armv7a  ;;
2986                 cortex-r*)                               subarch=armv7r  ;;
2987                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2988                 arm11*)                                  subarch=armv6   ;;
2989                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2990                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2991                 *)                             subarch=$(probe_arm_arch) ;;
2992             esac
2993         ;;
2994     esac
2995
2996     case "$subarch" in
2997         armv5t*)    enable fast_clz                ;;
2998         armv[6-8]*) enable fast_clz fast_unaligned ;;
2999     esac
3000
3001 elif enabled avr32; then
3002
3003     case $cpu in
3004         ap7[02]0[0-2])
3005             subarch="avr32_ap"
3006             cpuflags="-mpart=$cpu"
3007         ;;
3008         ap)
3009             subarch="avr32_ap"
3010             cpuflags="-march=$cpu"
3011         ;;
3012         uc3[ab]*)
3013             subarch="avr32_uc"
3014             cpuflags="-mcpu=$cpu"
3015         ;;
3016         uc)
3017             subarch="avr32_uc"
3018             cpuflags="-march=$cpu"
3019         ;;
3020     esac
3021
3022 elif enabled bfin; then
3023
3024     cpuflags="-mcpu=$cpu"
3025
3026 elif enabled mips; then
3027
3028     cpuflags="-march=$cpu"
3029
3030 elif enabled ppc; then
3031
3032     case $(tolower $cpu) in
3033         601|ppc601|powerpc601)
3034             cpuflags="-mcpu=601"
3035             disable altivec
3036         ;;
3037         603*|ppc603*|powerpc603*)
3038             cpuflags="-mcpu=603"
3039             disable altivec
3040         ;;
3041         604*|ppc604*|powerpc604*)
3042             cpuflags="-mcpu=604"
3043             disable altivec
3044         ;;
3045         g3|75*|ppc75*|powerpc75*)
3046             cpuflags="-mcpu=750"
3047             disable altivec
3048         ;;
3049         g4|745*|ppc745*|powerpc745*)
3050             cpuflags="-mcpu=7450"
3051         ;;
3052         74*|ppc74*|powerpc74*)
3053             cpuflags="-mcpu=7400"
3054         ;;
3055         g5|970|ppc970|powerpc970)
3056             cpuflags="-mcpu=970"
3057         ;;
3058         power[3-7]*)
3059             cpuflags="-mcpu=$cpu"
3060         ;;
3061         cell)
3062             cpuflags="-mcpu=cell"
3063             enable ldbrx
3064         ;;
3065         e500mc)
3066             cpuflags="-mcpu=e500mc"
3067             disable altivec
3068         ;;
3069         e500v2)
3070             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3071             disable altivec
3072         ;;
3073         e500)
3074             cpuflags="-mcpu=8540 -mhard-float"
3075             disable altivec
3076         ;;
3077     esac
3078
3079 elif enabled sparc; then
3080
3081     case $cpu in
3082         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3083             cpuflags="-mcpu=$cpu"
3084             disable vis
3085         ;;
3086         ultrasparc*|niagara[234])
3087             cpuflags="-mcpu=$cpu"
3088         ;;
3089     esac
3090
3091 elif enabled x86; then
3092
3093     case $cpu in
3094         i[345]86|pentium)
3095             cpuflags="-march=$cpu"
3096             disable mmx
3097         ;;
3098         # targets that do NOT support nopl and conditional mov (cmov)
3099         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3100             cpuflags="-march=$cpu"
3101             disable i686
3102         ;;
3103         # targets that do support nopl and conditional mov (cmov)
3104         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3105             cpuflags="-march=$cpu"
3106             enable i686
3107             enable fast_cmov
3108         ;;
3109         # targets that do support conditional mov but on which it's slow
3110         pentium4|pentium4m|prescott|nocona)
3111             cpuflags="-march=$cpu"
3112             enable i686
3113             disable fast_cmov
3114         ;;
3115     esac
3116
3117 fi
3118
3119 if [ "$cpu" != generic ]; then
3120     add_cflags  $cpuflags
3121     add_asflags $cpuflags
3122 fi
3123
3124 # compiler sanity check
3125 check_exec <<EOF
3126 int main(void){ return 0; }
3127 EOF
3128 if test "$?" != 0; then
3129     echo "$cc is unable to create an executable file."
3130     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3131         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3132         echo "Only do this if you know what cross compiling means."
3133     fi
3134     die "C compiler test failed."
3135 fi
3136
3137 add_cppflags -D_ISOC99_SOURCE
3138 check_cflags -std=c99
3139 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3140 #include <stdlib.h>
3141 EOF
3142 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3143 #include <stdlib.h>
3144 EOF
3145
3146 check_host_cflags -std=c99
3147 check_host_cflags -Wall
3148
3149 check_64bit(){
3150     arch32=$1
3151     arch64=$2
3152     expr=$3
3153     check_code cc "" "int test[2*($expr) - 1]" &&
3154         subarch=$arch64 || subarch=$arch32
3155 }
3156
3157 case "$arch" in
3158     aarch64|alpha|ia64)
3159         spic=$shared
3160     ;;
3161     mips)
3162         check_64bit mips mips64 '_MIPS_SIM > 1'
3163         spic=$shared
3164     ;;
3165     parisc)
3166         check_64bit parisc parisc64 'sizeof(void *) > 4'
3167         spic=$shared
3168     ;;
3169     ppc)
3170         check_64bit ppc ppc64 'sizeof(void *) > 4'
3171         spic=$shared
3172     ;;
3173     sparc)
3174         check_64bit sparc sparc64 'sizeof(void *) > 4'
3175         spic=$shared
3176     ;;
3177     x86)
3178         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3179         if test "$subarch" = "x86_64"; then
3180             spic=$shared
3181         fi
3182     ;;
3183 esac
3184
3185 enable $subarch
3186 enabled spic && enable_weak pic
3187
3188 # OS specific
3189 case $target_os in
3190     aix)
3191         SHFLAGS=-shared
3192         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3193         enabled shared && add_ldflags -Wl,-brtl
3194         ;;
3195     haiku)
3196         prefix_default="/boot/common"
3197         network_extralibs="-lnetwork"
3198         host_libs=
3199         ;;
3200     sunos)
3201         SHFLAGS='-shared -Wl,-h,$$(@F)'
3202         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3203         network_extralibs="-lsocket -lnsl"
3204         # When using suncc to build, the Solaris linker will mark
3205         # an executable with each instruction set encountered by
3206         # the Solaris assembler.  As our libraries contain their own
3207         # guards for processor-specific code, instead suppress
3208         # generation of the HWCAPS ELF section on Solaris x86 only.
3209         enabled_all suncc x86 &&
3210             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3211             add_ldflags -Wl,-M,mapfile
3212         nm_default='nm -P -g'
3213         ;;
3214     netbsd)
3215         disable symver
3216         oss_indev_extralibs="-lossaudio"
3217         oss_outdev_extralibs="-lossaudio"
3218         ;;
3219     openbsd|bitrig)
3220         disable symver
3221         SHFLAGS='-shared'
3222         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3223         SLIB_INSTALL_LINKS=
3224         oss_indev_extralibs="-lossaudio"
3225         oss_outdev_extralibs="-lossaudio"
3226         ;;
3227     dragonfly)
3228         disable symver
3229         ;;
3230     freebsd)
3231         ;;
3232     bsd/os)
3233         add_extralibs -lpoll -lgnugetopt
3234         ;;
3235     darwin)
3236         gas="gas-preprocessor.pl $cc"
3237         enabled ppc && add_asflags -force_cpusubtype_ALL
3238         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3239         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3240         add_ldflags -Wl,-dynamic,-search_paths_first
3241         SLIBSUF=".dylib"
3242         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3243         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3244         objformat="macho"
3245         enabled x86_64 && objformat="macho64"
3246         enabled_any pic shared ||
3247             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3248         ;;
3249     mingw32*)
3250         if test $target_os = "mingw32ce"; then
3251             disable network
3252         else
3253             target_os=mingw32
3254         fi
3255         LIBTARGET=i386
3256         if enabled x86_64; then
3257             LIBTARGET="i386:x86-64"
3258         elif enabled arm; then
3259             LIBTARGET=arm-wince
3260         fi
3261         check_ldflags -Wl,--nxcompat
3262         check_ldflags -Wl,--dynamicbase
3263         shlibdir_default="$bindir_default"
3264         SLIBPREF=""
3265         SLIBSUF=".dll"
3266         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3267         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3268         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3269         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3270         SLIB_INSTALL_LINKS=
3271         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3272         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3273         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3274         objformat="win32"
3275         dlltool="${cross_prefix}dlltool"
3276         ranlib=:
3277         enable dos_paths
3278         ;;
3279     win32|win64)
3280         disable symver
3281         if enabled shared; then
3282             # Link to the import library instead of the normal static library
3283             # for shared libs.
3284             LD_LIB='%.lib'
3285             # Cannot build both shared and static libs with MSVC or icl.
3286             disable static
3287         fi
3288         shlibdir_default="$bindir_default"
3289         SLIBPREF=""
3290         SLIBSUF=".dll"
3291         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3292         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3293         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3294         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3295         SLIB_INSTALL_LINKS=
3296         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3297         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3298         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3299         objformat="win32"
3300         ranlib=:
3301         enable dos_paths
3302         ;;
3303     cygwin*)
3304         target_os=cygwin
3305         shlibdir_default="$bindir_default"
3306         SLIBPREF="cyg"
3307         SLIBSUF=".dll"
3308         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3309         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3310         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3311         SLIB_INSTALL_LINKS=
3312         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3313         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3314         objformat="win32"
3315         enable dos_paths
3316         ;;
3317     *-dos|freedos|opendos)
3318         network_extralibs="-lsocket"
3319         objformat="coff"
3320         enable dos_paths
3321         add_cppflags -U__STRICT_ANSI__
3322         ;;
3323     linux)
3324         enable dv1394
3325         ;;
3326     irix*)
3327         target_os=irix
3328         ranlib="echo ignoring ranlib"
3329         ;;
3330     os/2*)
3331         ln_s="cp -f"
3332         objformat="aout"
3333         add_cppflags -D_GNU_SOURCE
3334         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3335         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3336         LIBSUF="_s.a"
3337         SLIBPREF=""
3338         SLIBSUF=".dll"
3339         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3340         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3341         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3342             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3343             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3344             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3345             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3346             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3347         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3348             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3349         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3350         enable dos_paths
3351         ;;
3352     gnu/kfreebsd)
3353         add_cppflags -D_BSD_SOURCE
3354         ;;
3355     gnu)
3356         ;;
3357     qnx)
3358         add_cppflags -D_QNX_SOURCE
3359         network_extralibs="-lsocket"
3360         ;;
3361     symbian)
3362         SLIBSUF=".dll"
3363         enable dos_paths
3364         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3365         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3366         add_ldflags -Wl,--target1-abs,--no-undefined \
3367                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3368                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3369         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3370                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3371                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3372         ;;
3373     osf1)
3374         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3375         ;;
3376     minix)
3377         ;;
3378     plan9)
3379         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3380                      -D_REENTRANT_SOURCE        \
3381                      -D_RESEARCH_SOURCE         \
3382                      -DFD_SETSIZE=96            \
3383                      -DHAVE_SOCK_OPTS
3384         add_compat strtod.o strtod=avpriv_strtod
3385         network_extralibs='-lbsd'
3386         exeobjs=compat/plan9/main.o
3387         disable avserver
3388         cp_f='cp'
3389         ;;
3390     none)
3391         ;;
3392     *)
3393         die "Unknown OS '$target_os'."
3394         ;;
3395 esac
3396
3397 # determine libc flavour
3398
3399 probe_libc(){
3400     pfx=$1
3401     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3402     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
3403         eval ${pfx}libc_type=uclibc
3404         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3405     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
3406         eval ${pfx}libc_type=glibc
3407         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3408     # MinGW headers can be installed on Cygwin, so check for newlib first.
3409     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3410         eval ${pfx}libc_type=newlib
3411         add_${pfx}cppflags -U__STRICT_ANSI__
3412     # MinGW64 is backwards compatible with MinGW32, so check for it first.
3413     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
3414         eval ${pfx}libc_type=mingw64
3415         add_${pfx}cppflags -U__STRICT_ANSI__
3416     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
3417         eval ${pfx}libc_type=mingw32
3418         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
3419             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3420             die "ERROR: MinGW32 runtime version must be >= 3.15."
3421         add_${pfx}cppflags -U__STRICT_ANSI__
3422     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
3423         eval ${pfx}libc_type=msvcrt
3424         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3425         # 0x601 by default unless something else is set by the user.
3426         # This can easily lead to us detecting functions only present
3427         # in such new versions and producing binaries requiring windows 7.0.
3428         # Therefore explicitly set the default to XP unless the user has
3429         # set something else on the command line.
3430         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
3431             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
3432     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
3433         eval ${pfx}libc_type=klibc
3434     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3435         eval ${pfx}libc_type=bionic
3436     elif check_${pfx}cpp_condition sys/brand.h "defined SOLARIS_BRAND_NAME"; then
3437         eval ${pfx}libc_type=solaris
3438         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3439     fi
3440 }
3441
3442 probe_libc
3443 test -n "$libc_type" && enable libc_$libc_type
3444 probe_libc host_
3445 test -n "$host_libc_type" && enable host_libc_$host_libc_type
3446
3447 case $libc_type in
3448     bionic)
3449         add_compat strtod.o strtod=avpriv_strtod
3450         ;;
3451     msvcrt)
3452         add_compat strtod.o strtod=avpriv_strtod
3453         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3454                                      _snprintf=avpriv_snprintf  \
3455                                      vsnprintf=avpriv_vsnprintf
3456         disable log2
3457         ;;
3458 esac
3459
3460 # hacks for compiler/libc/os combinations
3461
3462 if enabled_all tms470 libc_glibc; then
3463     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3464     add_cppflags -D__USER_LABEL_PREFIX__=
3465     add_cppflags -D__builtin_memset=memset
3466     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3467     add_cflags   -pds=48    # incompatible redefinition of macro
3468 fi
3469
3470 if enabled_all ccc libc_glibc; then
3471     add_ldflags -Wl,-z,now  # calls to libots crash without this
3472 fi
3473
3474 esc(){
3475     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3476 }
3477
3478 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3479
3480 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3481
3482 set_default $PATHS_LIST
3483 set_default nm
3484
3485 # we need to build at least one lib type
3486 if ! enabled_any static shared; then
3487     cat <<EOF
3488 At least one library type must be built.
3489 Specify --enable-static to build the static libraries or --enable-shared to
3490 build the shared libraries as well. To only build the shared libraries specify
3491 --disable-static in addition to --enable-shared.
3492 EOF
3493     exit 1;
3494 fi
3495
3496 die_license_disabled() {
3497     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3498 }
3499
3500 die_license_disabled gpl libcdio
3501 die_license_disabled gpl libx264
3502 die_license_disabled gpl libxavs
3503 die_license_disabled gpl libxvid
3504 die_license_disabled gpl x11grab
3505
3506 die_license_disabled nonfree libfaac
3507 die_license_disabled nonfree libfdk_aac
3508 die_license_disabled nonfree openssl
3509
3510 die_license_disabled version3 libopencore_amrnb
3511 die_license_disabled version3 libopencore_amrwb
3512 die_license_disabled version3 libvo_aacenc
3513 die_license_disabled version3 libvo_amrwbenc
3514
3515 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3516
3517 disabled optimizations || check_cflags -fomit-frame-pointer
3518
3519 enable_weak_pic() {
3520     disabled pic && return
3521     enable pic
3522     add_cppflags -DPIC
3523     case "$target_os" in
3524     mingw*|cygwin*)
3525         ;;
3526     *)
3527         add_cflags -fPIC
3528         ;;
3529     esac
3530     add_asflags  -fPIC
3531 }
3532
3533 enabled pic && enable_weak_pic
3534
3535 check_cc <<EOF || die "Symbol mangling check failed."
3536 int ff_extern;
3537 EOF
3538 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3539 extern_prefix=${sym%%ff_extern*}
3540
3541 check_cc <<EOF && enable_weak inline_asm
3542 void foo(void) { __asm__ volatile ("" ::); }
3543 EOF
3544
3545 _restrict=
3546 for restrict_keyword in restrict __restrict__ __restrict; do
3547     check_cc <<EOF && _restrict=$restrict_keyword && break
3548 void foo(char * $restrict_keyword p);
3549 EOF
3550 done
3551
3552 check_cc <<EOF && enable pragma_deprecated
3553 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
3554 EOF
3555
3556 check_cc <<EOF && enable attribute_packed
3557 struct { int x; } __attribute__((packed)) x;
3558 EOF
3559
3560 check_cc <<EOF && enable attribute_may_alias
3561 union { int x; } __attribute__((may_alias)) x;
3562 EOF
3563
3564 check_cc <<EOF || die "endian test failed"
3565 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3566 EOF
3567 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3568
3569 check_inline_asm inline_asm_labels '"1:\n"'
3570
3571 if enabled alpha; then
3572
3573     check_cflags -mieee
3574
3575 elif enabled arm; then
3576
3577     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3578     enabled thumb && check_cflags -mthumb || check_cflags -marm
3579     nogas=die
3580
3581     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3582         enable vfp_args
3583     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3584         case "${cross_prefix:-$cc}" in
3585             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3586             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3587 __asm__ (".eabi_attribute 28, 1");
3588 int main(void) { return 0; }
3589 EOF
3590         esac
3591         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3592     fi
3593
3594     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3595     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3596     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3597     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3598     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3599     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3600
3601     [ $target_os = linux ] ||
3602         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3603             $ARCH_EXT_LIST_ARM
3604
3605     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3606     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3607
3608     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
3609
3610 elif enabled mips; then
3611
3612     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3613
3614 elif enabled parisc; then
3615
3616     if enabled gcc; then
3617         case $($cc -dumpversion) in
3618             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3619         esac
3620     fi
3621
3622 elif enabled ppc; then
3623
3624     enable local_aligned_8 local_aligned_16
3625
3626     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3627     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3628     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3629     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3630
3631     # AltiVec flags: The FSF version of GCC differs from the Apple version
3632     if enabled altivec; then
3633         nogas=warn
3634         check_cflags -maltivec -mabi=altivec &&
3635         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3636         check_cflags -faltivec
3637
3638         # check if our compiler supports Motorola AltiVec C API
3639         check_cc <<EOF || disable altivec
3640 $inc_altivec_h
3641 int main(void) {
3642     vector signed int v1 = (vector signed int) { 0 };
3643     vector signed int v2 = (vector signed int) { 1 };
3644     v1 = vec_add(v1, v2);
3645     return 0;
3646 }
3647 EOF
3648
3649         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3650     fi
3651
3652 elif enabled sparc; then
3653
3654     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3655
3656 elif enabled x86; then
3657
3658     check_builtin rdtsc    intrin.h   "__rdtsc()"
3659     check_builtin mm_empty mmintrin.h "_mm_empty()"
3660
3661     enable local_aligned_8 local_aligned_16
3662
3663     # check whether EBP is available on x86
3664     # As 'i' is stored on the stack, this program will crash
3665     # if the base pointer is used to access it because the
3666     # base pointer is cleared in the inline assembly code.
3667     check_exec_crash <<EOF && enable ebp_available
3668 volatile int i=0;
3669 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3670 return i;
3671 EOF
3672
3673     # check whether EBX is available on x86
3674     check_inline_asm ebx_available '""::"b"(0)' &&
3675         check_inline_asm ebx_available '"":::"%ebx"'
3676
3677     # check whether xmm clobbers are supported
3678     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3679
3680     # check whether binutils is new enough to compile SSSE3/MMXEXT
3681     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3682     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3683
3684     if ! disabled_any asm mmx yasm; then
3685         if check_cmd $yasmexe --version; then
3686             enabled x86_64 && yasm_extra="-m amd64"
3687             yasm_debug="-g dwarf2"
3688         elif check_cmd nasm -v; then
3689             yasmexe=nasm
3690             yasm_debug="-g -F dwarf"
3691             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3692         fi
3693
3694         YASMFLAGS="-f $objformat $yasm_extra"
3695         enabled pic               && append YASMFLAGS "-DPIC"
3696         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3697         case "$objformat" in
3698             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3699         esac
3700
3701         check_yasm "movbe ecx, [5]" && enable yasm ||
3702             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
3703         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3704         check_yasm "CPU amdnop" && enable cpunop
3705     fi
3706
3707     case "$cpu" in
3708         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3709             disable fast_clz
3710         ;;
3711     esac
3712
3713 fi
3714
3715 if enabled asm; then
3716     as=${gas:=$as}
3717     check_as <<EOF && enable gnu_as || \
3718         $nogas "GNU assembler not found, install gas-preprocessor"
3719 .macro m n
3720 \n: .int 0
3721 .endm
3722 m x
3723 EOF
3724 fi
3725
3726 check_ldflags -Wl,--as-needed
3727
3728 if check_func dlopen; then
3729     ldl=
3730 elif check_func dlopen -ldl; then
3731     ldl=-ldl
3732 fi
3733
3734 if ! disabled network; then
3735     check_type "sys/types.h sys/socket.h" socklen_t
3736     check_type netdb.h "struct addrinfo"
3737     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3738     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3739     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3740     check_type netinet/in.h "struct sockaddr_in6"
3741     check_type poll.h "struct pollfd"
3742     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3743     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3744     check_type netinet/sctp.h "struct sctp_event_subscribe"
3745     check_func getaddrinfo $network_extralibs
3746     check_func getservbyport $network_extralibs
3747     # Prefer arpa/inet.h over winsock2
3748     if check_header arpa/inet.h ; then
3749         check_func closesocket
3750     elif check_header winsock2.h ; then
3751         check_func_headers winsock2.h closesocket -lws2 &&
3752             network_extralibs="-lws2" ||
3753         { check_func_headers winsock2.h closesocket -lws2_32 &&
3754             network_extralibs="-lws2_32"; }
3755         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3756         check_type ws2tcpip.h socklen_t
3757         check_type ws2tcpip.h "struct addrinfo"
3758         check_type ws2tcpip.h "struct group_source_req"
3759         check_type ws2tcpip.h "struct ip_mreq_source"
3760         check_type ws2tcpip.h "struct ipv6_mreq"
3761         check_type winsock2.h "struct pollfd"
3762         check_type ws2tcpip.h "struct sockaddr_in6"
3763         check_type ws2tcpip.h "struct sockaddr_storage"
3764         check_struct winsock2.h "struct sockaddr" sa_len
3765     else
3766         disable network
3767     fi
3768 fi
3769
3770 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3771 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3772
3773 check_func  fcntl
3774 check_func  fork
3775 check_func_headers stdlib.h getenv
3776 check_func  gethrtime
3777 check_func  getopt
3778 check_func  getrusage
3779 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3780 check_func  gettimeofday
3781 check_func  inet_aton $network_extralibs
3782 check_func  isatty
3783 check_func  localtime_r
3784 check_func  ${malloc_prefix}memalign            && enable memalign
3785 check_func  mkstemp
3786 check_func  mmap
3787 check_func  mprotect
3788 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3789 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3790 check_func  setrlimit
3791 check_func  strerror_r
3792 check_func  strptime
3793 check_func  strtok_r
3794 check_func  sched_getaffinity
3795 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3796 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3797 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3798 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3799 check_func  sysconf
3800 check_func  sysctl
3801 check_func  usleep
3802 check_func_headers io.h setmode
3803 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3804 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3805 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3806 check_func_headers windows.h GetProcessAffinityMask
3807 check_func_headers windows.h GetProcessTimes
3808 check_func_headers windows.h GetSystemTimeAsFileTime
3809 check_func_headers windows.h MapViewOfFile
3810 check_func_headers windows.h SetConsoleTextAttribute
3811 check_func_headers windows.h Sleep
3812 check_func_headers windows.h VirtualAlloc
3813
3814 check_header direct.h
3815 check_header dlfcn.h
3816 check_header dxva.h
3817 check_header dxva2api.h
3818 check_header io.h
3819 check_header malloc.h
3820 check_header poll.h
3821 check_header sys/mman.h
3822 check_header sys/param.h
3823 check_header sys/resource.h
3824 check_header sys/select.h
3825 check_header sys/time.h
3826 check_header sys/un.h
3827 check_header unistd.h
3828 check_header vdpau/vdpau.h
3829 check_header vdpau/vdpau_x11.h
3830 check_header VideoDecodeAcceleration/VDADecoder.h
3831 check_header windows.h
3832 check_header X11/extensions/XvMClib.h
3833
3834 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3835 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3836
3837 if ! disabled w32threads && ! enabled pthreads; then
3838     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3839 fi
3840
3841 # check for some common methods of building with pthread support
3842 # do this before the optional library checks as some of them require pthreads
3843 if ! disabled pthreads && ! enabled w32threads; then
3844     enable pthreads
3845     if check_func pthread_join; then
3846         :
3847     elif check_func pthread_join -pthread; then
3848         add_cflags -pthread
3849         add_extralibs -pthread
3850     elif check_func pthread_join -pthreads; then
3851         add_cflags -pthreads
3852         add_extralibs -pthreads
3853     elif check_func pthread_join -lpthreadGC2; then
3854         add_extralibs -lpthreadGC2
3855     elif ! check_lib pthread.h pthread_join -lpthread; then
3856         disable pthreads
3857     fi
3858 fi
3859
3860 for thread in $THREADS_LIST; do
3861     if enabled $thread; then
3862         test -n "$thread_type" &&
3863             die "ERROR: Only one thread type must be selected." ||
3864             thread_type="$thread"
3865     fi
3866 done
3867
3868 enabled sync_val_compare_and_swap && enable atomics_gcc
3869 enabled_all atomic_cas_ptr machine_rw_barrier && enable atomics_suncc
3870 enabled MemoryBarrier && enable atomics_win32
3871
3872 check_lib math.h sin -lm && LIBM="-lm"
3873 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3874
3875 atan2f_args=2
3876 ldexpf_args=2
3877 powf_args=2
3878
3879 for func in $MATH_FUNCS; do
3880     eval check_mathfunc $func \${${func}_args:-1}
3881 done
3882
3883 # these are off by default, so fail if requested and not available
3884 enabled avisynth          && { { check_header "avisynth/avisynth_c.h" && check_lib2 "windows.h" LoadLibrary; } ||
3885                                { check_header "avxsynth/avxsynth_c.h" && check_lib2 "dlfcn.h" dlopen -ldl; } ||
3886                                die "ERROR: LoadLibrary/dlopen not found, or avisynth header not found"; }
3887 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3888 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3889 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3890 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3891 enabled libfreetype       && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3892 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3893                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3894                                done || die "ERROR: libgsm not found"; }
3895 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3896 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3897 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3898 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3899 enabled libopencv         && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3900 enabled libopenjpeg       && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3901 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3902 enabled libpulse          && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3903 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3904 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3905 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
3906 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3907 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3908 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3909 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3910 enabled libvpx            && {
3911     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3912                                     die "ERROR: libvpx decoder version must be >=0.9.1"; }
3913     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3914                                     die "ERROR: libvpx encoder version must be >=0.9.6"; }
3915     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder; }
3916     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3917 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
3918 enabled libx264           && require libx264 x264.h x264_encoder_encode -lx264 &&
3919                              { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3920                                die "ERROR: libx264 version must be >= 0.118."; }
3921 enabled libxavs           && require libxavs xavs.h xavs_encoder_encode -lxavs
3922 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
3923 enabled openssl           && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3924                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3925                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3926                                die "ERROR: openssl not found"; }
3927
3928 if enabled gnutls; then
3929     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3930     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3931 fi
3932
3933 # libdc1394 check
3934 if enabled libdc1394; then
3935     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3936         enable libdc1394_2; } ||
3937     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3938         enable libdc1394_1; } ||
3939     die "ERROR: No version of libdc1394 found "
3940 fi
3941
3942 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3943     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3944     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x010300" $sdl_cflags &&
3945     enable sdl
3946 fi
3947
3948 pod2man --help     > /dev/null 2>&1 && enable pod2man   || disable pod2man
3949 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3950
3951 check_header linux/fb.h
3952 check_header linux/videodev2.h
3953 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3954
3955 check_header sys/videoio.h
3956
3957 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3958 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3959 # w32api 3.12 had it defined wrong
3960 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3961
3962 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3963 { check_header dev/bktr/ioctl_meteor.h &&
3964   check_header dev/bktr/ioctl_bt848.h; } ||
3965 { check_header machine/ioctl_meteor.h &&
3966   check_header machine/ioctl_bt848.h; } ||
3967 { check_header dev/video/meteor/ioctl_meteor.h &&
3968   check_header dev/video/bktr/ioctl_bt848.h; } ||
3969 check_header dev/ic/bt8xx.h
3970
3971 check_header sndio.h
3972 check_header sys/soundcard.h
3973 check_header soundcard.h
3974
3975 enabled_any alsa_indev alsa_outdev &&
3976     check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3977
3978 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3979     check_func jack_port_get_latency_range -ljack
3980
3981 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3982
3983 if enabled libcdio; then
3984     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
3985     check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3986 fi
3987
3988 check_lib X11/Xlib.h XOpenDisplay -lX11 && enable xlib
3989
3990 enabled x11grab                                           &&
3991 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3992 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes &&
3993 { enabled xlib || die "ERROR: Xlib not found"; }
3994
3995 enabled vdpau &&
3996     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3997     disable vdpau
3998
3999 enabled vdpau && enabled xlib &&
4000     check_lib2 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau &&
4001     enable vdpau_x11
4002
4003 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
4004
4005 # add some useful compiler flags if supported
4006 check_cflags -Wdeclaration-after-statement
4007 check_cflags -Wall
4008 check_cflags -Wdisabled-optimization
4009 check_cflags -Wpointer-arith
4010 check_cflags -Wredundant-decls
4011 check_cflags -Wcast-qual
4012 check_cflags -Wwrite-strings
4013 check_cflags -Wtype-limits
4014 check_cflags -Wundef
4015 check_cflags -Wmissing-prototypes
4016 check_cflags -Wstrict-prototypes
4017 enabled extra_warnings && check_cflags -Winline
4018
4019 check_disable_warning(){
4020     warning_flag=-W${1#-Wno-}
4021     test_cflags $warning_flag && add_cflags $1
4022 }
4023
4024 check_disable_warning -Wno-parentheses
4025 check_disable_warning -Wno-switch
4026 check_disable_warning -Wno-format-zero-length
4027 check_disable_warning -Wno-pointer-sign
4028
4029 # add some linker flags
4030 check_ldflags -Wl,--warn-common
4031 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
4032 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
4033
4034 # add some strip flags
4035 # -wN '..@*' is more selective than -x, but not available everywhere.
4036 check_stripflags -wN \'..@*\' || check_stripflags -x || strip='true'
4037
4038 enabled xmm_clobber_test &&
4039     check_ldflags -Wl,--wrap,avcodec_open2              \
4040                   -Wl,--wrap,avcodec_decode_audio4      \
4041                   -Wl,--wrap,avcodec_decode_video2      \
4042                   -Wl,--wrap,avcodec_decode_subtitle2   \
4043                   -Wl,--wrap,avcodec_encode_audio2      \
4044                   -Wl,--wrap,avcodec_encode_video2      \
4045                   -Wl,--wrap,avcodec_encode_subtitle    \
4046                   -Wl,--wrap,sws_scale ||
4047     disable xmm_clobber_test
4048
4049 echo "X{};" > $TMPV
4050 if test_ldflags -Wl,--version-script,$TMPV; then
4051     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
4052     check_cc <<EOF && enable symver_asm_label
4053 void ff_foo(void) __asm__ ("av_foo@VERSION");
4054 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
4055 EOF
4056     check_cc <<EOF && enable symver_gnu_asm
4057 __asm__(".symver ff_foo,av_foo@VERSION");
4058 void ff_foo(void) {}
4059 EOF
4060 fi
4061
4062 if [ -z "$optflags" ]; then
4063     if enabled small; then
4064         optflags=$cflags_size
4065     elif enabled optimizations; then
4066         optflags=$cflags_speed
4067     else
4068         optflags=$cflags_noopt
4069     fi
4070 fi
4071
4072 check_optflags(){
4073     check_cflags "$@"
4074     enabled lto && check_ldflags "$@"
4075 }
4076
4077
4078 if enabled lto; then
4079     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
4080     check_cflags  -flto
4081     check_ldflags -flto $cpuflags
4082 fi
4083
4084 check_optflags $optflags
4085 check_optflags -fno-math-errno
4086 check_optflags -fno-signed-zeros
4087
4088 if enabled icc; then
4089     # Just warnings, no remarks
4090     check_cflags -w1
4091     # -wd: Disable following warnings
4092     # 144, 167, 556: -Wno-pointer-sign
4093     # 1292: attribute "foo" ignored
4094     # 1419: external declaration in primary source file
4095     # 10006: ignoring unknown option -fno-signed-zeros
4096     # 10148: ignoring unknown option -Wno-parentheses
4097     # 10156: ignoring option '-W'; no argument required
4098     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
4099     # 11030: Warning unknown option --as-needed
4100     # 10156: ignoring option '-export'; no argument required
4101     check_ldflags -wd10156,11030
4102     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
4103     enable ebp_available
4104     if enabled x86_32; then
4105         icc_version=$($cc -dumpversion)
4106         test ${icc_version%%.*} -ge 11 &&
4107             check_cflags -falign-stack=maintain-16-byte ||
4108             disable aligned_stack
4109     fi
4110 elif enabled ccc; then
4111     # disable some annoying warnings
4112     add_cflags -msg_disable bitnotint
4113     add_cflags -msg_disable mixfuncvoid
4114     add_cflags -msg_disable nonstandcast
4115     add_cflags -msg_disable unsupieee
4116 elif enabled gcc; then
4117     check_optflags -fno-tree-vectorize
4118     check_cflags -Werror=implicit-function-declaration
4119     check_cflags -Werror=missing-prototypes
4120     check_cflags -Werror=return-type
4121     check_cflags -Werror=declaration-after-statement
4122     check_cflags -Werror=vla
4123     enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
4124 elif enabled llvm_gcc; then
4125     check_cflags -mllvm -stack-alignment=16
4126 elif enabled clang; then
4127     check_cflags -mllvm -stack-alignment=16
4128     check_cflags -Qunused-arguments
4129     check_cflags -Werror=implicit-function-declaration
4130     check_cflags -Werror=missing-prototypes
4131     check_cflags -Werror=return-type
4132 elif enabled cparser; then
4133     add_cflags -Wno-missing-variable-declarations
4134     add_cflags -Wno-empty-statement
4135 elif enabled armcc; then
4136     # 2523: use of inline assembler is deprecated
4137     add_cflags -W${armcc_opt},--diag_suppress=2523
4138     add_cflags -W${armcc_opt},--diag_suppress=1207
4139     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
4140     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
4141     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
4142     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
4143 elif enabled tms470; then
4144     add_cflags -pds=824 -pds=837
4145     disable inline_asm
4146 elif enabled pathscale; then
4147     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
4148 elif enabled_any msvc icl; then
4149     enabled x86_32 && disable aligned_stack
4150     enabled_all x86_32 debug && add_cflags -Oy-
4151     enabled debug && add_ldflags -debug
4152     enable pragma_deprecated
4153     if enabled icl; then
4154         # -Qansi-alias is basically -fstrict-aliasing, but does not work
4155         # (correctly) on icl 13.x.
4156         check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
4157             add_cflags -Qansi-alias
4158         # icl will pass the inline asm tests but inline asm is currently
4159         # not supported (build will fail)
4160         disable inline_asm
4161     fi
4162 fi
4163
4164 case $target_os in
4165     osf1)
4166         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
4167     ;;
4168     plan9)
4169         add_cppflags -Dmain=plan9_main
4170     ;;
4171 esac
4172
4173 enabled_any $THREADS_LIST      && enable threads
4174 enabled_any $ATOMICS_LIST      && enable atomics_native
4175
4176 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
4177
4178 check_deps $CONFIG_LIST       \
4179            $CONFIG_EXTRA      \
4180            $HAVE_LIST         \
4181            $ALL_COMPONENTS    \
4182
4183 ! enabled_any memalign posix_memalign aligned_malloc &&
4184     enabled_any $need_memalign && enable memalign_hack
4185
4186 echo "install prefix            $prefix"
4187 echo "source path               $source_path"
4188 echo "C compiler                $cc"
4189 echo "C library                 $libc_type"
4190 if test "$host_cc" != "$cc"; then
4191     echo "host C compiler           $host_cc"
4192     echo "host C library            $host_libc_type"
4193 fi
4194 echo "ARCH                      $arch ($cpu)"
4195 if test "$build_suffix" != ""; then
4196     echo "build suffix              $build_suffix"
4197 fi
4198 if test "$extra_version" != ""; then
4199     echo "version string suffix     $extra_version"
4200 fi
4201 echo "big-endian                ${bigendian-no}"
4202 echo "runtime cpu detection     ${runtime_cpudetect-no}"
4203 if enabled x86; then
4204     echo "${yasmexe}                      ${yasm-no}"
4205     echo "MMX enabled               ${mmx-no}"
4206     echo "MMXEXT enabled            ${mmxext-no}"
4207     echo "3DNow! enabled            ${amd3dnow-no}"
4208     echo "3DNow! extended enabled   ${amd3dnowext-no}"
4209     echo "SSE enabled               ${sse-no}"
4210     echo "SSSE3 enabled             ${ssse3-no}"
4211     echo "AVX enabled               ${avx-no}"
4212     echo "FMA4 enabled              ${fma4-no}"
4213     echo "i686 features enabled     ${i686-no}"
4214     echo "CMOV is fast              ${fast_cmov-no}"
4215     echo "EBX available             ${ebx_available-no}"
4216     echo "EBP available             ${ebp_available-no}"
4217 fi
4218 if enabled arm; then
4219     echo "ARMv5TE enabled           ${armv5te-no}"
4220     echo "ARMv6 enabled             ${armv6-no}"
4221     echo "ARMv6T2 enabled           ${armv6t2-no}"
4222     echo "VFP enabled               ${vfp-no}"
4223     echo "NEON enabled              ${neon-no}"
4224 fi
4225 if enabled ppc; then
4226     echo "AltiVec enabled           ${altivec-no}"
4227     echo "PPC 4xx optimizations     ${ppc4xx-no}"
4228     echo "dcbzl available           ${dcbzl-no}"
4229 fi
4230 if enabled sparc; then
4231     echo "VIS enabled               ${vis-no}"
4232 fi
4233 echo "debug symbols             ${debug-no}"
4234 echo "optimize for size         ${small-no}"
4235 echo "optimizations             ${optimizations-no}"
4236 echo "static                    ${static-no}"
4237 echo "shared                    ${shared-no}"
4238 echo "new filter support        ${avfilter-no}"
4239 echo "network support           ${network-no}"
4240 echo "threading support         ${thread_type-no}"
4241 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
4242 echo "SDL support               ${sdl-no}"
4243 test -n "$random_seed" &&
4244     echo "random seed               ${random_seed}"
4245 echo
4246
4247 echo "External libraries:"
4248 print_enabled '' $EXTERNAL_LIBRARY_LIST | print_3_columns
4249 echo
4250
4251 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
4252     echo "Enabled ${type}s:"
4253     eval list=\$$(toupper $type)_LIST
4254     print_enabled '_*' $list | print_3_columns
4255     echo
4256 done
4257
4258 license="LGPL version 2.1 or later"
4259 if enabled nonfree; then
4260     license="nonfree and unredistributable"
4261 elif enabled gplv3; then
4262     license="GPL version 3 or later"
4263 elif enabled lgplv3; then
4264     license="LGPL version 3 or later"
4265 elif enabled gpl; then
4266     license="GPL version 2 or later"
4267 fi
4268
4269 echo "License: $license"
4270
4271 echo "Creating config.mak and config.h..."
4272
4273 test -e Makefile || echo "include $source_path/Makefile" > Makefile
4274
4275 config_files="$TMPH config.mak"
4276
4277 cat > config.mak <<EOF
4278 # Automatically generated by configure - do not modify!
4279 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
4280 prefix=$prefix
4281 LIBDIR=\$(DESTDIR)$libdir
4282 SHLIBDIR=\$(DESTDIR)$shlibdir
4283 INCDIR=\$(DESTDIR)$incdir
4284 BINDIR=\$(DESTDIR)$bindir
4285 DATADIR=\$(DESTDIR)$datadir
4286 DOCDIR=\$(DESTDIR)$docdir
4287 MANDIR=\$(DESTDIR)$mandir
4288 SRC_PATH=$source_path
4289 CC_IDENT=$cc_ident
4290 ARCH=$arch
4291 CC=$cc
4292 AS=$as
4293 LD=$ld
4294 DEPCC=$dep_cc
4295 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
4296 DEPAS=$as
4297 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
4298 YASM=$yasmexe
4299 DEPYASM=$yasmexe
4300 AR=$ar
4301 ARFLAGS=$arflags
4302 AR_O=$ar_o
4303 RANLIB=$ranlib
4304 STRIP=$strip
4305 LN_S=$ln_s
4306 CPPFLAGS=$CPPFLAGS
4307 CFLAGS=$CFLAGS
4308 ASFLAGS=$ASFLAGS
4309 AS_C=$AS_C
4310 AS_O=$AS_O
4311 CC_C=$CC_C
4312 CC_E=$CC_E
4313 CC_O=$CC_O
4314 LD_O=$LD_O
4315 LD_LIB=$LD_LIB
4316 LD_PATH=$LD_PATH
4317 DLLTOOL=$dlltool
4318 LDFLAGS=$LDFLAGS
4319 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
4320 STRIPFLAGS=$STRIPFLAGS
4321 YASMFLAGS=$YASMFLAGS
4322 BUILDSUF=$build_suffix
4323 FULLNAME=$FULLNAME
4324 LIBPREF=$LIBPREF
4325 LIBSUF=$LIBSUF
4326 LIBNAME=$LIBNAME
4327 SLIBPREF=$SLIBPREF
4328 SLIBSUF=$SLIBSUF
4329 EXESUF=$EXESUF
4330 EXTRA_VERSION=$extra_version
4331 CCDEP=$CCDEP
4332 CCDEP_FLAGS=$CCDEP_FLAGS
4333 ASDEP=$ASDEP
4334 ASDEP_FLAGS=$ASDEP_FLAGS
4335 CC_DEPFLAGS=$CC_DEPFLAGS
4336 AS_DEPFLAGS=$AS_DEPFLAGS
4337 HOSTCC=$host_cc
4338 HOSTLD=$host_ld
4339 HOSTCFLAGS=$host_cflags
4340 HOSTCPPFLAGS=$host_cppflags
4341 HOSTEXESUF=$HOSTEXESUF
4342 HOSTLDFLAGS=$host_ldflags
4343 HOSTLIBS=$host_libs
4344 DEPHOSTCC=$host_cc
4345 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
4346 HOSTCCDEP=$HOSTCCDEP
4347 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
4348 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
4349 HOSTCC_C=$HOSTCC_C
4350 HOSTCC_O=$HOSTCC_O
4351 HOSTLD_O=$HOSTLD_O
4352 TARGET_EXEC=$target_exec $target_exec_args
4353 TARGET_PATH=$target_path
4354 TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
4355 LIBS-avplay=$sdl_libs
4356 CFLAGS-avplay=$sdl_cflags
4357 ZLIB=$($ldflags_filter -lz)
4358 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
4359 EXTRALIBS=$extralibs
4360 COMPAT_OBJS=$compat_objs
4361 EXEOBJS=$exeobjs
4362 INSTALL=install
4363 LIBTARGET=${LIBTARGET}
4364 SLIBNAME=${SLIBNAME}
4365 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
4366 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
4367 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
4368 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
4369 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
4370 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
4371 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
4372 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
4373 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
4374 EOF
4375
4376 get_version(){
4377     lcname=lib${1}
4378     name=$(toupper $lcname)
4379     file=$source_path/$lcname/version.h
4380     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
4381     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
4382     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
4383     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
4384     eval echo "${lcname}_VERSION_MINOR=\$${name}_VERSION_MINOR" >> config.mak
4385 }
4386
4387 map 'get_version $v' $LIBRARY_LIST
4388
4389 cat > $TMPH <<EOF
4390 /* Automatically generated by configure - do not modify! */
4391 #ifndef LIBAV_CONFIG_H
4392 #define LIBAV_CONFIG_H
4393 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
4394 #define LIBAV_LICENSE "$(c_escape $license)"
4395 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
4396 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
4397 #define restrict $_restrict
4398 #define EXTERN_PREFIX "${extern_prefix}"
4399 #define EXTERN_ASM ${extern_prefix}
4400 #define SLIBSUF "$SLIBSUF"
4401 EOF
4402
4403 test -n "$malloc_prefix" &&
4404     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
4405
4406 if enabled yasm; then
4407     append config_files $TMPASM
4408     printf '' >$TMPASM
4409 fi
4410
4411 enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
4412
4413 print_config ARCH_   "$config_files" $ARCH_LIST
4414 print_config HAVE_   "$config_files" $HAVE_LIST
4415 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
4416                                      $CONFIG_EXTRA      \
4417                                      $ALL_COMPONENTS    \
4418
4419 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
4420
4421 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
4422 cp_if_changed $TMPH config.h
4423 touch .config
4424
4425 enabled yasm && cp_if_changed $TMPASM config.asm
4426
4427 cat > $TMPH <<EOF
4428 /* Generated by ffconf */
4429 #ifndef AVUTIL_AVCONFIG_H
4430 #define AVUTIL_AVCONFIG_H
4431 EOF
4432
4433 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4434
4435 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4436
4437 cp_if_changed $TMPH libavutil/avconfig.h
4438
4439 test -n "$WARNINGS" && printf "\n$WARNINGS"
4440
4441 # build pkg-config files
4442
4443 pkgconfig_generate(){
4444     name=$1
4445     shortname=${name#lib}${build_suffix}
4446     comment=$2
4447     version=$3
4448     libs=$4
4449     requires=$5
4450     enabled ${name#lib} || return 0
4451     mkdir -p $name
4452     cat <<EOF > $name/$name.pc
4453 prefix=$prefix
4454 exec_prefix=\${prefix}
4455 libdir=$libdir
4456 includedir=$incdir
4457
4458 Name: $name
4459 Description: $comment
4460 Version: $version
4461 Requires: $(enabled shared || echo $requires)
4462 Requires.private: $(enabled shared && echo $requires)
4463 Conflicts:
4464 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4465 Libs.private: $(enabled shared && echo $libs)
4466 Cflags: -I\${includedir}
4467 EOF
4468     cat <<EOF > $name/$name-uninstalled.pc
4469 prefix=
4470 exec_prefix=
4471 libdir=\${pcfiledir}
4472 includedir=${source_path}
4473
4474 Name: $name
4475 Description: $comment
4476 Version: $version
4477 Requires: $requires
4478 Conflicts:
4479 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4480 Cflags: -I\${includedir}
4481 EOF
4482 }
4483
4484 lavfi_libs="libavutil = $LIBAVUTIL_VERSION"
4485 enabled movie_filter    && prepend lavfi_libs "libavformat >= $LIBAVFORMAT_VERSION, libavcodec >= $LIBAVCODEC_VERSION,"
4486 enabled resample_filter && prepend lavfi_libs "libavresample >= $LIBAVRESAMPLE_VERSION,"
4487 enabled scale_filter    && prepend lavfi_libs "libswscale >= $LIBSWSCALE_VERSION,"
4488
4489 pkgconfig_generate libavutil     "Libav utility library"          "$LIBAVUTIL_VERSION"     "$LIBM"
4490 pkgconfig_generate libavcodec    "Libav codec library"            "$LIBAVCODEC_VERSION"    "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4491 pkgconfig_generate libavformat   "Libav container format library" "$LIBAVFORMAT_VERSION"   "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4492 pkgconfig_generate libavdevice   "Libav device handling library"  "$LIBAVDEVICE_VERSION"   "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4493 pkgconfig_generate libavfilter   "Libav video filtering library"  "$LIBAVFILTER_VERSION"   "$extralibs" "$lavfi_libs"
4494 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4495 pkgconfig_generate libswscale    "Libav image rescaling library"  "$LIBSWSCALE_VERSION"    "$LIBM"      "libavutil = $LIBAVUTIL_VERSION"