jpeg2000dwt: add float based 9/7 dwt
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --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   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller 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-ffmpeg         disable ffmpeg build
109   --disable-ffplay         disable ffplay build
110   --disable-ffprobe        disable ffprobe build
111   --disable-ffserver       disable ffserver build
112
113 Documentation options:
114   --disable-doc            do not build documentation
115   --disable-htmlpages      do not build HTML documentation pages
116   --disable-manpages       do not build man documentation pages
117   --disable-podpages       do not build POD documentation pages
118   --disable-txtpages       do not build text documentation pages
119
120 Component options:
121   --disable-avdevice       disable libavdevice build
122   --disable-avcodec        disable libavcodec build
123   --disable-avformat       disable libavformat build
124   --disable-avutil         disable libavutil build
125   --disable-swresample     disable libswresample build
126   --disable-swscale        disable libswscale build
127   --disable-postproc       disable libpostproc build
128   --disable-avfilter       disable libavfilter build
129   --enable-avresample      enable libavresample build [no]
130   --disable-pthreads       disable pthreads [auto]
131   --disable-w32threads     disable Win32 threads [auto]
132   --disable-os2threads     disable OS/2 threads [auto]
133   --disable-network        disable network support [no]
134   --disable-dct            disable DCT code
135   --disable-dwt            disable DWT code
136   --disable-error-resilience disable error resilience code
137   --disable-lsp            disable LSP code
138   --disable-lzo            disable LZO decoder code
139   --disable-mdct           disable MDCT code
140   --disable-rdft           disable RDFT code
141   --disable-fft            disable FFT code
142
143 Hardware accelerators:
144   --disable-dxva2          disable DXVA2 code [autodetect]
145   --disable-vaapi          disable VAAPI code [autodetect]
146   --enable-vda             enable VDA code
147   --disable-vdpau          disable VDPAU code [autodetect]
148
149 Individual component options:
150   --disable-everything     disable all components listed below
151   --disable-encoder=NAME   disable encoder NAME
152   --enable-encoder=NAME    enable encoder NAME
153   --disable-encoders       disable all encoders
154   --disable-decoder=NAME   disable decoder NAME
155   --enable-decoder=NAME    enable decoder NAME
156   --disable-decoders       disable all decoders
157   --disable-hwaccel=NAME   disable hwaccel NAME
158   --enable-hwaccel=NAME    enable hwaccel NAME
159   --disable-hwaccels       disable all hwaccels
160   --disable-muxer=NAME     disable muxer NAME
161   --enable-muxer=NAME      enable muxer NAME
162   --disable-muxers         disable all muxers
163   --disable-demuxer=NAME   disable demuxer NAME
164   --enable-demuxer=NAME    enable demuxer NAME
165   --disable-demuxers       disable all demuxers
166   --enable-parser=NAME     enable parser NAME
167   --disable-parser=NAME    disable parser NAME
168   --disable-parsers        disable all parsers
169   --enable-bsf=NAME        enable bitstream filter NAME
170   --disable-bsf=NAME       disable bitstream filter NAME
171   --disable-bsfs           disable all bitstream filters
172   --enable-protocol=NAME   enable protocol NAME
173   --disable-protocol=NAME  disable protocol NAME
174   --disable-protocols      disable all protocols
175   --enable-indev=NAME      enable input device NAME
176   --disable-indev=NAME     disable input device NAME
177   --disable-indevs         disable input devices
178   --enable-outdev=NAME     enable output device NAME
179   --disable-outdev=NAME    disable output device NAME
180   --disable-outdevs        disable output devices
181   --disable-devices        disable all devices
182   --enable-filter=NAME     enable filter NAME
183   --disable-filter=NAME    disable filter NAME
184   --disable-filters        disable all filters
185
186 External library support:
187   --enable-avisynth        enable reading of AVISynth script files [no]
188   --disable-bzlib          disable bzlib [autodetect]
189   --enable-fontconfig      enable fontconfig
190   --enable-frei0r          enable frei0r video filtering
191   --enable-gnutls          enable gnutls [no]
192   --disable-iconv          disable iconv [autodetect]
193   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
194   --enable-libass          enable libass subtitles rendering [no]
195   --enable-libbluray       enable BluRay reading using libbluray [no]
196   --enable-libcaca         enable textual display using libcaca
197   --enable-libcelt         enable CELT decoding via libcelt [no]
198   --enable-libcdio         enable audio CD grabbing with libcdio
199   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
200                            and libraw1394 [no]
201   --enable-libfaac         enable AAC encoding via libfaac [no]
202   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
203   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
204   --enable-libfreetype     enable libfreetype [no]
205   --enable-libgsm          enable GSM de/encoding via libgsm [no]
206   --enable-libiec61883     enable iec61883 via libiec61883 [no]
207   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
208   --enable-libmodplug      enable ModPlug via libmodplug [no]
209   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
210   --enable-libnut          enable NUT (de)muxing via libnut,
211                            native (de)muxer exists [no]
212   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
213   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
214   --enable-libopencv       enable video filtering via libopencv [no]
215   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
216   --enable-libopus         enable Opus decoding via libopus [no]
217   --enable-libpulse        enable Pulseaudio input via libpulse [no]
218   --enable-libquvi         enable quvi input via libquvi [no]
219   --enable-librtmp         enable RTMP[E] support via librtmp [no]
220   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
221   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
222   --enable-libsoxr         enable Include libsoxr resampling [no]
223   --enable-libspeex        enable Speex de/encoding via libspeex [no]
224   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
225   --enable-libtheora       enable Theora encoding via libtheora [no]
226   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
227   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
228   --enable-libv4l2         enable libv4l2/v4l-utils [no]
229   --enable-libvidstab      enable video stabilization using vid.stab [no]
230   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
231   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
232   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
233                            native implementation exists [no]
234   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
235   --enable-libx264         enable H.264 encoding via x264 [no]
236   --enable-libxavs         enable AVS encoding via xavs [no]
237   --enable-libxvid         enable Xvid encoding via xvidcore,
238                            native MPEG-4/Xvid encoder exists [no]
239   --enable-libzmq          enable message passing via libzmq [no]
240   --enable-openal          enable OpenAL 1.1 capture support [no]
241   --enable-opencl          enable OpenCL code
242   --enable-openssl         enable openssl [no]
243   --enable-x11grab         enable X11 grabbing [no]
244   --disable-zlib           disable zlib [autodetect]
245
246 Advanced options (experts only):
247   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
248   --enable-cross-compile   assume a cross-compiler is used
249   --sysroot=PATH           root of cross-build tree
250   --sysinclude=PATH        location of cross-build system headers
251   --target-os=OS           compiler targets OS [$target_os]
252   --target-exec=CMD        command to run executables on target
253   --target-path=DIR        path to view of build directory on target
254   --toolchain=NAME         set tool defaults according to NAME
255   --nm=NM                  use nm tool NM [$nm_default]
256   --ar=AR                  use archive tool AR [$ar_default]
257   --as=AS                  use assembler AS [$as_default]
258   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
259   --cc=CC                  use C compiler CC [$cc_default]
260   --cxx=CXX                use C compiler CXX [$cxx_default]
261   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
262   --ld=LD                  use linker LD [$ld_default]
263   --host-cc=HOSTCC         use host C compiler HOSTCC
264   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
265   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
266   --host-ld=HOSTLD         use host linker HOSTLD
267   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
268   --host-libs=HLIBS        use libs HLIBS when linking for host
269   --host-os=OS             compiler host OS [$target_os]
270   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
271   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
272   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
273   --extra-libs=ELIBS       add ELIBS [$ELIBS]
274   --extra-version=STRING   version string suffix []
275   --optflags=OPTFLAGS      override optimization-related compiler flags
276   --build-suffix=SUFFIX    library name suffix []
277   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
278   --progs-suffix=SUFFIX    program name suffix []
279   --arch=ARCH              select architecture [$arch]
280   --cpu=CPU                select the minimum required CPU (affects
281                            instruction selection, may crash on older CPUs)
282   --enable-pic             build position-independent code
283   --enable-sram            allow use of on-chip SRAM
284   --enable-thumb           compile for Thumb instruction set
285   --disable-symver         disable symbol versioning
286   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
287   --disable-safe-bitstream-reader
288                            disable buffer boundary checking in bitreaders
289                            (faster, but may crash)
290   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
291   --enable-lto             use link-time optimization
292
293 Optimization options (experts only):
294   --disable-asm            disable all assembler optimizations
295   --disable-altivec        disable AltiVec optimizations
296   --disable-amd3dnow       disable 3DNow! optimizations
297   --disable-amd3dnowext    disable 3DNow! extended optimizations
298   --disable-mmx            disable MMX optimizations
299   --disable-mmxext         disable MMXEXT optimizations
300   --disable-sse            disable SSE optimizations
301   --disable-sse2           disable SSE2 optimizations
302   --disable-sse3           disable SSE3 optimizations
303   --disable-ssse3          disable SSSE3 optimizations
304   --disable-sse4           disable SSE4 optimizations
305   --disable-sse42          disable SSE4.2 optimizations
306   --disable-avx            disable AVX optimizations
307   --disable-fma4           disable FMA4 optimizations
308   --disable-armv5te        disable armv5te optimizations
309   --disable-armv6          disable armv6 optimizations
310   --disable-armv6t2        disable armv6t2 optimizations
311   --disable-vfp            disable VFP optimizations
312   --disable-neon           disable NEON optimizations
313   --disable-vis            disable VIS optimizations
314   --disable-inline-asm     disable use of inline assembler
315   --disable-yasm           disable use of yasm assembler
316   --disable-mips32r2       disable MIPS32R2 optimizations
317   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
318   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
319   --disable-mipsfpu        disable floating point MIPS optimizations
320   --disable-fast-unaligned consider unaligned accesses slow
321
322 Developer options (useful when working on FFmpeg itself):
323   --disable-debug          disable debugging symbols
324   --enable-debug=LEVEL     set the debug level [$debuglevel]
325   --disable-optimizations  disable compiler optimizations
326   --enable-extra-warnings  enable more compiler warnings
327   --disable-stripping      disable stripping of executables and shared libraries
328   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
329                            2 causes a slowdown at runtime.
330   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
331   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
332                            leaks and errors, using the specified valgrind binary.
333                            Cannot be combined with --target-exec
334   --enable-ftrapv          Trap arithmetic overflows
335   --samples=PATH           location of test samples for FATE, if not set use
336                            \$FATE_SAMPLES at make invocation time.
337   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
338                            should be used only for debugging purposes)
339   --enable-random          randomly enable/disable components
340   --disable-random
341   --enable-random=LIST     randomly enable/disable specific components or
342   --disable-random=LIST    component groups. LIST is a comma-separated list
343                            of NAME[:PROB] entries where NAME is a component
344                            (group) and PROB the probability associated with
345                            NAME (default 0.5).
346   --random-seed=VALUE      seed value for --enable/disable-random
347
348 NOTE: Object files are built at the place where configure is launched.
349 EOF
350   exit 0
351 }
352
353 quotes='""'
354
355 log(){
356     echo "$@" >> $logfile
357 }
358
359 log_file(){
360     log BEGIN $1
361     pr -n -t $1 >> $logfile
362     log END $1
363 }
364
365 echolog(){
366     log "$@"
367     echo "$@"
368 }
369
370 warn(){
371     log "WARNING: $*"
372     WARNINGS="${WARNINGS}WARNING: $*\n"
373 }
374
375 die(){
376     echolog "$@"
377     cat <<EOF
378
379 If you think configure made a mistake, make sure you are using the latest
380 version from Git.  If the latest version fails, report the problem to the
381 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
382 EOF
383     if disabled logging; then
384         cat <<EOF
385 Rerun configure with logging enabled (do not use --disable-logging), and
386 include the log this produces with your report.
387 EOF
388     else
389         cat <<EOF
390 Include the log file "$logfile" produced by configure as this will help
391 solving the problem.
392 EOF
393     fi
394     exit 1
395 }
396
397 # Avoid locale weirdness, besides we really just want to translate ASCII.
398 toupper(){
399     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
400 }
401
402 tolower(){
403     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
404 }
405
406 c_escape(){
407     echo "$*" | sed 's/["\\]/\\\0/g'
408 }
409
410 sh_quote(){
411     v=$(echo "$1" | sed "s/'/'\\\\''/g")
412     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
413     echo "$v"
414 }
415
416 cleanws(){
417     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
418 }
419
420 filter(){
421     pat=$1
422     shift
423     for v; do
424         eval "case $v in $pat) echo $v ;; esac"
425     done
426 }
427
428 filter_out(){
429     pat=$1
430     shift
431     for v; do
432         eval "case $v in $pat) ;; *) echo $v ;; esac"
433     done
434 }
435
436 map(){
437     m=$1
438     shift
439     for v; do eval $m; done
440 }
441
442 add_suffix(){
443     suffix=$1
444     shift
445     for v; do echo ${v}${suffix}; done
446 }
447
448 set_all(){
449     value=$1
450     shift
451     for var in $*; do
452         eval $var=$value
453     done
454 }
455
456 set_weak(){
457     value=$1
458     shift
459     for var; do
460         eval : \${$var:=$value}
461     done
462 }
463
464 sanitize_var_name(){
465     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
466 }
467
468 set_safe(){
469     var=$1
470     shift
471     eval $(sanitize_var_name "$var")='$*'
472 }
473
474 get_safe(){
475     eval echo \$$(sanitize_var_name "$1")
476 }
477
478 pushvar(){
479     for pvar in $*; do
480         eval level=\${${pvar}_level:=0}
481         eval ${pvar}_${level}="\$$pvar"
482         eval ${pvar}_level=$(($level+1))
483     done
484 }
485
486 popvar(){
487     for pvar in $*; do
488         eval level=\${${pvar}_level:-0}
489         test $level = 0 && continue
490         eval level=$(($level-1))
491         eval $pvar="\${${pvar}_${level}}"
492         eval ${pvar}_level=$level
493         eval unset ${pvar}_${level}
494     done
495 }
496
497 enable(){
498     set_all yes $*
499 }
500
501 disable(){
502     set_all no $*
503 }
504
505 enable_weak(){
506     set_weak yes $*
507 }
508
509 disable_weak(){
510     set_weak no $*
511 }
512
513 enable_safe(){
514     for var; do
515         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
516     done
517 }
518
519 disable_safe(){
520     for var; do
521         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
522     done
523 }
524
525 do_enable_deep(){
526     for var; do
527         enabled $var && continue
528         eval sel="\$${var}_select"
529         eval sgs="\$${var}_suggest"
530         pushvar var sgs
531         enable_deep $sel
532         popvar sgs
533         enable_deep_weak $sgs
534         popvar var
535     done
536 }
537
538 enable_deep(){
539     do_enable_deep $*
540     enable $*
541 }
542
543 enable_deep_weak(){
544     for var; do
545         disabled $var && continue
546         pushvar var
547         do_enable_deep $var
548         popvar var
549         enable_weak $var
550     done
551 }
552
553 enabled(){
554     test "${1#!}" = "$1" && op== || op=!=
555     eval test "x\$${1#!}" $op "xyes"
556 }
557
558 disabled(){
559     test "${1#!}" = "$1" && op== || op=!=
560     eval test "x\$${1#!}" $op "xno"
561 }
562
563 enabled_all(){
564     for opt; do
565         enabled $opt || return 1
566     done
567 }
568
569 disabled_all(){
570     for opt; do
571         disabled $opt || return 1
572     done
573 }
574
575 enabled_any(){
576     for opt; do
577         enabled $opt && return 0
578     done
579 }
580
581 disabled_any(){
582     for opt; do
583         disabled $opt && return 0
584     done
585     return 1
586 }
587
588 set_default(){
589     for opt; do
590         eval : \${$opt:=\$${opt}_default}
591     done
592 }
593
594 is_in(){
595     value=$1
596     shift
597     for var in $*; do
598         [ $var = $value ] && return 0
599     done
600     return 1
601 }
602
603 do_check_deps(){
604     for cfg; do
605         cfg="${cfg#!}"
606         enabled ${cfg}_checking && die "Circular dependency for $cfg."
607         disabled ${cfg}_checking && continue
608         enable ${cfg}_checking
609         append allopts $cfg
610
611         eval dep_all="\$${cfg}_deps"
612         eval dep_any="\$${cfg}_deps_any"
613         eval dep_sel="\$${cfg}_select"
614         eval dep_sgs="\$${cfg}_suggest"
615         eval dep_ifa="\$${cfg}_if"
616         eval dep_ifn="\$${cfg}_if_any"
617
618         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
619         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
620         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
621
622         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
623         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
624         enabled_all  $dep_all || disable $cfg
625         enabled_any  $dep_any || disable $cfg
626         disabled_any $dep_sel && disable $cfg
627
628         if enabled $cfg; then
629             enable_deep $dep_sel
630             enable_deep_weak $dep_sgs
631         fi
632
633         disable ${cfg}_checking
634     done
635 }
636
637 check_deps(){
638     unset allopts
639
640     do_check_deps "$@"
641
642     for cfg in $allopts; do
643         enabled $cfg || continue
644         eval dep_extralibs="\$${cfg}_extralibs"
645         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
646     done
647 }
648
649 print_config(){
650     pfx=$1
651     files=$2
652     shift 2
653     map 'eval echo "$v \${$v:-no}"' "$@" |
654     awk "BEGIN { split(\"$files\", files) }
655         {
656             c = \"$pfx\" toupper(\$1);
657             v = \$2;
658             sub(/yes/, 1, v);
659             sub(/no/,  0, v);
660             for (f in files) {
661                 file = files[f];
662                 if (file ~ /\\.h\$/) {
663                     printf(\"#define %s %d\\n\", c, v) >>file;
664                 } else if (file ~ /\\.asm\$/) {
665                     printf(\"%%define %s %d\\n\", c, v) >>file;
666                 } else if (file ~ /\\.mak\$/) {
667                     n = -v ? \"\" : \"!\";
668                     printf(\"%s%s=yes\\n\", n, c) >>file;
669                 } else if (file ~ /\\.texi\$/) {
670                     pre = -v ? \"\" : \"@c \";
671                     yesno = \$2;
672                     c2 = tolower(c);
673                     gsub(/_/, \"-\", c2);
674                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
675                 }
676             }
677         }"
678 }
679
680 print_enabled(){
681     suf=$1
682     shift
683     for v; do
684         enabled $v && printf "%s\n" ${v%$suf};
685     done
686 }
687
688 append(){
689     var=$1
690     shift
691     eval "$var=\"\$$var $*\""
692 }
693
694 prepend(){
695     var=$1
696     shift
697     eval "$var=\"$* \$$var\""
698 }
699
700 add_cppflags(){
701     append CPPFLAGS "$@"
702 }
703
704 add_cflags(){
705     append CFLAGS $($cflags_filter "$@")
706 }
707
708 add_cxxflags(){
709     append CXXFLAGS $($cflags_filter "$@")
710 }
711
712 add_asflags(){
713     append ASFLAGS $($asflags_filter "$@")
714 }
715
716 add_ldflags(){
717     append LDFLAGS $($ldflags_filter "$@")
718 }
719
720 add_extralibs(){
721     prepend extralibs $($ldflags_filter "$@")
722 }
723
724 add_host_cppflags(){
725     append host_cppflags "$@"
726 }
727
728 add_host_cflags(){
729     append host_cflags $($host_cflags_filter "$@")
730 }
731
732 add_host_ldflags(){
733     append host_ldflags $($host_ldflags_filter "$@")
734 }
735
736 add_compat(){
737     append compat_objs $1
738     shift
739     map 'add_cppflags -D$v' "$@"
740 }
741
742 check_cmd(){
743     log "$@"
744     "$@" >> $logfile 2>&1
745 }
746
747 cc_o(){
748     eval printf '%s\\n' $CC_O
749 }
750
751 cc_e(){
752     eval printf '%s\\n' $CC_E
753 }
754
755 check_cc(){
756     log check_cc "$@"
757     cat > $TMPC
758     log_file $TMPC
759     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
760 }
761
762 check_cxx(){
763     log check_cxx "$@"
764     cat > $TMPCPP
765     log_file $TMPCPP
766     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
767 }
768
769 check_cpp(){
770     log check_cpp "$@"
771     cat > $TMPC
772     log_file $TMPC
773     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
774 }
775
776 as_o(){
777     eval printf '%s\\n' $AS_O
778 }
779
780 check_as(){
781     log check_as "$@"
782     cat > $TMPS
783     log_file $TMPS
784     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
785 }
786
787 check_inline_asm(){
788     log check_inline_asm "$@"
789     name="$1"
790     code="$2"
791     shift 2
792     disable $name
793     check_cc "$@" <<EOF && enable $name
794 void foo(void){ __asm__ volatile($code); }
795 EOF
796 }
797
798 check_insn(){
799     log check_insn "$@"
800     check_inline_asm ${1}_inline "\"$2\""
801     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
802 }
803
804 check_yasm(){
805     log check_yasm "$@"
806     echo "$1" > $TMPS
807     log_file $TMPS
808     shift 1
809     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
810 }
811
812 ld_o(){
813     eval printf '%s\\n' $LD_O
814 }
815
816 check_ld(){
817     log check_ld "$@"
818     type=$1
819     shift 1
820     flags=$(filter_out '-l*|*.so' $@)
821     libs=$(filter '-l*|*.so' $@)
822     check_$type $($cflags_filter $flags) || return
823     flags=$($ldflags_filter $flags)
824     libs=$($ldflags_filter $libs)
825     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
826 }
827
828 check_code(){
829     log check_code "$@"
830     check=$1
831     headers=$2
832     code=$3
833     shift 3
834     {
835         for hdr in $headers; do
836             echo "#include <$hdr>"
837         done
838         echo "int main(void) { $code; return 0; }"
839     } | check_$check "$@"
840 }
841
842 check_cppflags(){
843     log check_cppflags "$@"
844     check_cc "$@" <<EOF && append CPPFLAGS "$@"
845 int x;
846 EOF
847 }
848
849 check_cflags(){
850     log check_cflags "$@"
851     set -- $($cflags_filter "$@")
852     check_cc "$@" <<EOF && append CFLAGS "$@"
853 int x;
854 EOF
855 }
856
857 check_cxxflags(){
858     log check_cxxflags "$@"
859     set -- $($cflags_filter "$@")
860     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
861 int x;
862 EOF
863 }
864
865 test_ldflags(){
866     log test_ldflags "$@"
867     check_ld "cc" "$@" <<EOF
868 int main(void){ return 0; }
869 EOF
870 }
871
872 check_ldflags(){
873     log check_ldflags "$@"
874     test_ldflags "$@" && add_ldflags "$@"
875 }
876
877 check_header(){
878     log check_header "$@"
879     header=$1
880     shift
881     disable_safe $header
882     check_cpp "$@" <<EOF && enable_safe $header
883 #include <$header>
884 int x;
885 EOF
886 }
887
888 check_func(){
889     log check_func "$@"
890     func=$1
891     shift
892     disable $func
893     check_ld "cc" "$@" <<EOF && enable $func
894 extern int $func();
895 int main(void){ $func(); }
896 EOF
897 }
898
899 check_mathfunc(){
900     log check_mathfunc "$@"
901     func=$1
902     narg=$2
903     shift 2
904     test $narg = 2 && args="f, g" || args="f"
905     disable $func
906     check_ld "cc" "$@" <<EOF && enable $func
907 #include <math.h>
908 float foo(float f, float g) { return $func($args); }
909 int main(void){ return (int) foo; }
910 EOF
911 }
912
913 check_func_headers(){
914     log check_func_headers "$@"
915     headers=$1
916     funcs=$2
917     shift 2
918     {
919         for hdr in $headers; do
920             echo "#include <$hdr>"
921         done
922         for func in $funcs; do
923             echo "long check_$func(void) { return (long) $func; }"
924         done
925         echo "int main(void) { return 0; }"
926     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
927 }
928
929 check_class_headers_cpp(){
930     log check_class_headers_cpp "$@"
931     headers=$1
932     classes=$2
933     shift 2
934     {
935         for hdr in $headers; do
936             echo "#include <$hdr>"
937         done
938         echo "int main(void) { "
939         i=1
940         for class in $classes; do
941             echo "$class obj$i;"
942             i=$(expr $i + 1)
943         done
944         echo "return 0; }"
945     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
946 }
947
948 check_cpp_condition(){
949     log check_cpp_condition "$@"
950     header=$1
951     condition=$2
952     shift 2
953     check_cpp "$@" <<EOF
954 #include <$header>
955 #if !($condition)
956 #error "unsatisfied condition: $condition"
957 #endif
958 EOF
959 }
960
961 check_lib(){
962     log check_lib "$@"
963     header="$1"
964     func="$2"
965     shift 2
966     check_header $header && check_func $func "$@" && add_extralibs "$@"
967 }
968
969 check_lib2(){
970     log check_lib2 "$@"
971     headers="$1"
972     funcs="$2"
973     shift 2
974     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
975 }
976
977 check_lib_cpp(){
978     log check_lib_cpp "$@"
979     headers="$1"
980     classes="$2"
981     shift 2
982     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
983 }
984
985 check_pkg_config(){
986     log check_pkg_config "$@"
987     pkg="$1"
988     headers="$2"
989     funcs="$3"
990     shift 3
991     $pkg_config --exists $pkg 2>/dev/null || return
992     pkg_cflags=$($pkg_config --cflags $pkg)
993     pkg_libs=$($pkg_config --libs $pkg)
994     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
995         set_safe ${pkg}_cflags $pkg_cflags   &&
996         set_safe ${pkg}_libs   $pkg_libs
997 }
998
999 check_exec(){
1000     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1001 }
1002
1003 check_exec_crash(){
1004     code=$(cat)
1005
1006     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1007     # are safe but may not be available everywhere.  Thus we use
1008     # raise(SIGTERM) instead.  The check is run in a subshell so we
1009     # can redirect the "Terminated" message from the shell.  SIGBUS
1010     # is not defined by standard C so it is used conditionally.
1011
1012     (check_exec "$@") >> $logfile 2>&1 <<EOF
1013 #include <signal.h>
1014 static void sighandler(int sig){
1015     raise(SIGTERM);
1016 }
1017 int foo(void){
1018     $code
1019 }
1020 int (*func_ptr)(void) = foo;
1021 int main(void){
1022     signal(SIGILL, sighandler);
1023     signal(SIGFPE, sighandler);
1024     signal(SIGSEGV, sighandler);
1025 #ifdef SIGBUS
1026     signal(SIGBUS, sighandler);
1027 #endif
1028     return func_ptr();
1029 }
1030 EOF
1031 }
1032
1033 check_type(){
1034     log check_type "$@"
1035     headers=$1
1036     type=$2
1037     shift 2
1038     disable_safe "$type"
1039     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1040 }
1041
1042 check_struct(){
1043     log check_struct "$@"
1044     headers=$1
1045     struct=$2
1046     member=$3
1047     shift 3
1048     disable_safe "${struct}_${member}"
1049     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1050         enable_safe "${struct}_${member}"
1051 }
1052
1053 check_builtin(){
1054     log check_builtin "$@"
1055     name=$1
1056     headers=$2
1057     builtin=$3
1058     shift 3
1059     disable "$name"
1060     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1061 }
1062
1063 require(){
1064     name="$1"
1065     header="$2"
1066     func="$3"
1067     shift 3
1068     check_lib $header $func "$@" || die "ERROR: $name not found"
1069 }
1070
1071 require2(){
1072     name="$1"
1073     headers="$2"
1074     func="$3"
1075     shift 3
1076     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1077 }
1078
1079 require_cpp(){
1080     name="$1"
1081     headers="$2"
1082     classes="$3"
1083     shift 3
1084     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1085 }
1086
1087 require_pkg_config(){
1088     pkg="$1"
1089     check_pkg_config "$@" || die "ERROR: $pkg not found"
1090     add_cflags    $(get_safe ${pkg}_cflags)
1091     add_extralibs $(get_safe ${pkg}_libs)
1092 }
1093
1094 hostcc_o(){
1095     eval printf '%s\\n' $HOSTCC_O
1096 }
1097
1098 check_host_cc(){
1099     log check_host_cc "$@"
1100     cat > $TMPC
1101     log_file $TMPC
1102     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1103 }
1104
1105 check_host_cppflags(){
1106     log check_host_cppflags "$@"
1107     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1108 int x;
1109 EOF
1110 }
1111
1112 check_host_cflags(){
1113     log check_host_cflags "$@"
1114     set -- $($host_cflags_filter "$@")
1115     check_host_cc "$@" <<EOF && append host_cflags "$@"
1116 int x;
1117 EOF
1118 }
1119
1120 apply(){
1121     file=$1
1122     shift
1123     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1124 }
1125
1126 cp_if_changed(){
1127     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1128     mkdir -p "$(dirname $2)"
1129     $cp_f "$1" "$2"
1130 }
1131
1132 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1133 # system-dependent things.
1134
1135 COMPONENT_LIST="
1136     bsfs
1137     decoders
1138     demuxers
1139     encoders
1140     filters
1141     hwaccels
1142     indevs
1143     muxers
1144     outdevs
1145     parsers
1146     protocols
1147 "
1148
1149 EXTERNAL_LIBRARY_LIST="
1150     avisynth
1151     bzlib
1152     crystalhd
1153     fontconfig
1154     frei0r
1155     gnutls
1156     iconv
1157     libaacplus
1158     libass
1159     libbluray
1160     libcaca
1161     libcdio
1162     libcelt
1163     libdc1394
1164     libfaac
1165     libfdk_aac
1166     libflite
1167     libfreetype
1168     libgsm
1169     libiec61883
1170     libilbc
1171     libmodplug
1172     libmp3lame
1173     libnut
1174     libopencore_amrnb
1175     libopencore_amrwb
1176     libopencv
1177     libopenjpeg
1178     libopus
1179     libpulse
1180     libquvi
1181     librtmp
1182     libschroedinger
1183     libshine
1184     libsoxr
1185     libspeex
1186     libstagefright_h264
1187     libtheora
1188     libtwolame
1189     libutvideo
1190     libv4l2
1191     libvidstab
1192     libvo_aacenc
1193     libvo_amrwbenc
1194     libvorbis
1195     libvpx
1196     libx264
1197     libxavs
1198     libxvid
1199     libzmq
1200     openal
1201     opencl
1202     openssl
1203     x11grab
1204     zlib
1205 "
1206
1207 DOCUMENT_LIST="
1208     doc
1209     htmlpages
1210     manpages
1211     podpages
1212     txtpages
1213 "
1214
1215 HWACCEL_LIST="
1216     dxva2
1217     vaapi
1218     vda
1219     vdpau
1220 "
1221
1222 LIBRARY_LIST="
1223     avcodec
1224     avdevice
1225     avfilter
1226     avformat
1227     avresample
1228     avutil
1229     postproc
1230     swresample
1231     swscale
1232 "
1233
1234 PROGRAM_LIST="
1235     ffplay
1236     ffprobe
1237     ffserver
1238     ffmpeg
1239 "
1240
1241 CONFIG_LIST="
1242     $COMPONENT_LIST
1243     $DOCUMENT_LIST
1244     $EXTERNAL_LIBRARY_LIST
1245     $HWACCEL_LIST
1246     $LIBRARY_LIST
1247     $PROGRAM_LIST
1248     dct
1249     dwt
1250     error_resilience
1251     fast_unaligned
1252     fft
1253     ftrapv
1254     gpl
1255     gray
1256     hardcoded_tables
1257     incompatible_fork_abi
1258     lsp
1259     lzo
1260     mdct
1261     memalign_hack
1262     memory_poisoning
1263     network
1264     nonfree
1265     pic
1266     rdft
1267     runtime_cpudetect
1268     safe_bitstream_reader
1269     shared
1270     small
1271     sram
1272     static
1273     swscale_alpha
1274     thumb
1275     version3
1276     xmm_clobber_test
1277 "
1278
1279 THREADS_LIST='
1280     pthreads
1281     w32threads
1282     os2threads
1283 '
1284
1285 ATOMICS_LIST='
1286     atomics_gcc
1287     atomics_suncc
1288     atomics_win32
1289 '
1290
1291 ARCH_LIST='
1292     aarch64
1293     alpha
1294     arm
1295     avr32
1296     avr32_ap
1297     avr32_uc
1298     bfin
1299     ia64
1300     m68k
1301     mips
1302     mips64
1303     parisc
1304     ppc
1305     ppc64
1306     s390
1307     sh4
1308     sparc
1309     sparc64
1310     tilegx
1311     tilepro
1312     tomi
1313     x86
1314     x86_32
1315     x86_64
1316 '
1317
1318 ARCH_EXT_LIST_ARM='
1319     armv5te
1320     armv6
1321     armv6t2
1322     neon
1323     vfp
1324     vfpv3
1325 '
1326
1327 ARCH_EXT_LIST_X86='
1328     amd3dnow
1329     amd3dnowext
1330     avx
1331     fma4
1332     mmx
1333     mmxext
1334     sse
1335     sse2
1336     sse3
1337     sse4
1338     sse42
1339     ssse3
1340 '
1341
1342 ARCH_EXT_LIST="
1343     $ARCH_EXT_LIST_ARM
1344     $ARCH_EXT_LIST_X86
1345     altivec
1346     ppc4xx
1347     vis
1348     mipsfpu
1349     mips32r2
1350     mipsdspr1
1351     mipsdspr2
1352 "
1353
1354 HAVE_LIST_CMDLINE='
1355     inline_asm
1356     symver
1357     yasm
1358 '
1359
1360 HAVE_LIST_PUB='
1361     bigendian
1362     fast_unaligned
1363     incompatible_fork_abi
1364 '
1365
1366 MATH_FUNCS="
1367     atanf
1368     atan2f
1369     cbrt
1370     cbrtf
1371     cosf
1372     exp2
1373     exp2f
1374     expf
1375     isinf
1376     isnan
1377     ldexpf
1378     llrint
1379     llrintf
1380     log2
1381     log2f
1382     log10f
1383     lrint
1384     lrintf
1385     powf
1386     rint
1387     round
1388     roundf
1389     sinf
1390     trunc
1391     truncf
1392 "
1393
1394 HAVE_LIST="
1395     $ARCH_EXT_LIST
1396     $(add_suffix _external $ARCH_EXT_LIST)
1397     $(add_suffix _inline   $ARCH_EXT_LIST)
1398     $HAVE_LIST_CMDLINE
1399     $HAVE_LIST_PUB
1400     $THREADS_LIST
1401     $ATOMICS_LIST
1402     $MATH_FUNCS
1403     access
1404     aligned_malloc
1405     aligned_stack
1406     alsa_asoundlib_h
1407     altivec_h
1408     arpa_inet_h
1409     asm_mod_q
1410     asm_mod_y
1411     asm_types_h
1412     atomic_cas_ptr
1413     atomics_native
1414     attribute_may_alias
1415     attribute_packed
1416     cdio_paranoia_h
1417     cdio_paranoia_paranoia_h
1418     CL_cl_h
1419     clock_gettime
1420     closesocket
1421     CommandLineToArgvW
1422     cpunop
1423     CryptGenRandom
1424     dcbzl
1425     dev_bktr_ioctl_bt848_h
1426     dev_bktr_ioctl_meteor_h
1427     dev_ic_bt8xx_h
1428     dev_video_bktr_ioctl_bt848_h
1429     dev_video_meteor_ioctl_meteor_h
1430     direct_h
1431     dlfcn_h
1432     dlopen
1433     dos_paths
1434     dxva_h
1435     ebp_available
1436     ebx_available
1437     fast_64bit
1438     fast_clz
1439     fast_cmov
1440     fcntl
1441     fork
1442     getaddrinfo
1443     gethrtime
1444     getopt
1445     GetProcessAffinityMask
1446     GetProcessMemoryInfo
1447     GetProcessTimes
1448     GetSystemTimeAsFileTime
1449     getrusage
1450     getservbyport
1451     gettimeofday
1452     glob
1453     gnu_as
1454     gsm_h
1455     i686
1456     ibm_asm
1457     inet_aton
1458     io_h
1459     isatty
1460     jack_port_get_latency_range
1461     kbhit
1462     ldbrx
1463     libdc1394_1
1464     libdc1394_2
1465     local_aligned_16
1466     local_aligned_8
1467     localtime_r
1468     loongson
1469     lzo1x_999_compress
1470     machine_ioctl_bt848_h
1471     machine_ioctl_meteor_h
1472     machine_rw_barrier
1473     makeinfo
1474     malloc_h
1475     MapViewOfFile
1476     memalign
1477     MemoryBarrier
1478     mkstemp
1479     mm_empty
1480     mmap
1481     mprotect
1482     msvcrt
1483     nanosleep
1484     openjpeg_1_5_openjpeg_h
1485     PeekNamedPipe
1486     perl
1487     pod2man
1488     poll_h
1489     posix_memalign
1490     pthread_cancel
1491     rdtsc
1492     rsync_contimeout
1493     sched_getaffinity
1494     sdl
1495     SetConsoleTextAttribute
1496     setmode
1497     setrlimit
1498     Sleep
1499     sndio_h
1500     socklen_t
1501     soundcard_h
1502     strerror_r
1503     struct_addrinfo
1504     struct_group_source_req
1505     struct_ip_mreq_source
1506     struct_ipv6_mreq
1507     struct_pollfd
1508     struct_rusage_ru_maxrss
1509     struct_sctp_event_subscribe
1510     struct_sockaddr_in6
1511     struct_sockaddr_sa_len
1512     struct_sockaddr_storage
1513     struct_v4l2_frmivalenum_discrete
1514     symver_asm_label
1515     symver_gnu_asm
1516     sync_val_compare_and_swap
1517     sysconf
1518     sysctl
1519     sys_mman_h
1520     sys_param_h
1521     sys_resource_h
1522     sys_select_h
1523     sys_soundcard_h
1524     sys_time_h
1525     sys_videoio_h
1526     termios_h
1527     texi2html
1528     threads
1529     unistd_h
1530     usleep
1531     vfp_args
1532     VirtualAlloc
1533     windows_h
1534     winsock2_h
1535     xform_asm
1536     xmm_clobbers
1537 "
1538
1539 # options emitted with CONFIG_ prefix but not available on the command line
1540 CONFIG_EXTRA="
1541     aandcttables
1542     ac3dsp
1543     audio_frame_queue
1544     dsputil
1545     frame_thread_encoder
1546     gcrypt
1547     golomb
1548     gplv3
1549     h264chroma
1550     h264dsp
1551     h264pred
1552     h264qpel
1553     hpeldsp
1554     huffman
1555     lgplv3
1556     lpc
1557     mpegaudio
1558     mpegaudiodsp
1559     mpegvideo
1560     mpegvideoenc
1561     nettle
1562     rangecoder
1563     rtpdec
1564     rtpenc_chain
1565     sinewin
1566     videodsp
1567     vp3dsp
1568 "
1569
1570 CMDLINE_SELECT="
1571     $ARCH_EXT_LIST
1572     $CONFIG_LIST
1573     $HAVE_LIST_CMDLINE
1574     $THREADS_LIST
1575     asm
1576     cross_compile
1577     debug
1578     extra_warnings
1579     logging
1580     lto
1581     optimizations
1582     stripping
1583 "
1584
1585 PATHS_LIST='
1586     bindir
1587     datadir
1588     incdir
1589     libdir
1590     mandir
1591     prefix
1592     shlibdir
1593 '
1594
1595 CMDLINE_SET="
1596     $PATHS_LIST
1597     ar
1598     arch
1599     as
1600     assert_level
1601     build_suffix
1602     cc
1603     cpu
1604     cross_prefix
1605     cxx
1606     dep_cc
1607     extra_version
1608     host_cc
1609     host_cflags
1610     host_ld
1611     host_ldflags
1612     host_libs
1613     host_os
1614     install
1615     ld
1616     logfile
1617     malloc_prefix
1618     nm
1619     optflags
1620     pkg_config
1621     progs_suffix
1622     random_seed
1623     samples
1624     strip
1625     sysinclude
1626     sysroot
1627     target_exec
1628     target_os
1629     target_path
1630     toolchain
1631     valgrind
1632     yasmexe
1633 "
1634
1635 CMDLINE_APPEND="
1636     extra_cflags
1637     extra_cxxflags
1638     host_cppflags
1639 "
1640
1641 # code dependency declarations
1642
1643 # architecture extensions
1644
1645 armv5te_deps="arm"
1646 armv6_deps="arm"
1647 armv6t2_deps="arm"
1648 neon_deps="arm"
1649 vfp_deps="arm"
1650 vfpv3_deps="vfp"
1651
1652 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1653
1654 mipsfpu_deps="mips"
1655 mips32r2_deps="mips"
1656 mipsdspr1_deps="mips"
1657 mipsdspr2_deps="mips"
1658
1659 altivec_deps="ppc"
1660 ppc4xx_deps="ppc"
1661
1662 vis_deps="sparc"
1663
1664 x86_64_suggest="fast_cmov i686"
1665
1666 amd3dnow_deps="mmx"
1667 amd3dnowext_deps="amd3dnow"
1668 mmx_deps="x86"
1669 mmxext_deps="mmx"
1670 sse_deps="mmxext"
1671 sse2_deps="sse"
1672 sse3_deps="sse2"
1673 ssse3_deps="sse3"
1674 sse4_deps="ssse3"
1675 sse42_deps="sse4"
1676 avx_deps="sse42"
1677 fma4_deps="avx"
1678
1679 mmx_external_deps="yasm"
1680 mmx_inline_deps="inline_asm"
1681 mmx_suggest="mmx_external mmx_inline"
1682
1683 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1684     eval dep=\$${ext}_deps
1685     eval ${ext}_external_deps='"${dep}_external"'
1686     eval ${ext}_inline_deps='"${dep}_inline"'
1687     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1688 done
1689
1690 aligned_stack_if_any="ppc x86"
1691 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1692 fast_clz_if_any="alpha avr32 mips ppc x86"
1693 fast_unaligned_if_any="ppc x86"
1694
1695 inline_asm_deps="!tms470"
1696 need_memalign="altivec neon sse"
1697
1698 symver_if_any="symver_asm_label symver_gnu_asm"
1699
1700 log2_deps="!msvcrt"
1701
1702 # subsystems
1703 dct_select="rdft"
1704 error_resilience_select="dsputil"
1705 frame_thread_encoder_deps="encoders threads"
1706 lpc_select="dsputil"
1707 mdct_select="fft"
1708 rdft_select="fft"
1709 mpegaudio_select="mpegaudiodsp"
1710 mpegaudiodsp_select="dct"
1711 mpegvideo_select="dsputil h264chroma hpeldsp videodsp"
1712 mpegvideoenc_select="mpegvideo"
1713
1714 # decoders / encoders
1715 aac_decoder_select="mdct sinewin"
1716 aac_encoder_select="audio_frame_queue mdct sinewin"
1717 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1718 ac3_decoder_select="mdct ac3dsp ac3_parser dsputil"
1719 ac3_encoder_select="mdct ac3dsp dsputil"
1720 ac3_fixed_encoder_select="mdct ac3dsp dsputil"
1721 aic_decoder_select="dsputil golomb"
1722 alac_encoder_select="lpc"
1723 als_decoder_select="dsputil"
1724 amrnb_decoder_select="lsp"
1725 amrwb_decoder_select="lsp"
1726 amv_decoder_select="dsputil hpeldsp"
1727 amv_encoder_select="aandcttables"
1728 ape_decoder_select="dsputil"
1729 asv1_decoder_select="dsputil"
1730 asv1_encoder_select="dsputil"
1731 asv2_decoder_select="dsputil"
1732 asv2_encoder_select="dsputil"
1733 atrac1_decoder_select="mdct sinewin"
1734 atrac3_decoder_select="mdct"
1735 bink_decoder_select="dsputil hpeldsp"
1736 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1737 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1738 cavs_decoder_select="dsputil golomb h264chroma videodsp"
1739 cllc_decoder_select="dsputil"
1740 comfortnoise_encoder_select="lpc"
1741 cook_decoder_select="dsputil mdct sinewin"
1742 cscd_decoder_select="lzo"
1743 cscd_decoder_suggest="zlib"
1744 dca_decoder_select="mdct"
1745 dirac_decoder_select="dsputil dwt golomb videodsp"
1746 dnxhd_decoder_select="dsputil"
1747 dnxhd_encoder_select="aandcttables dsputil mpegvideoenc"
1748 dvvideo_decoder_select="dsputil"
1749 dvvideo_encoder_select="dsputil"
1750 dxa_decoder_select="zlib"
1751 eac3_decoder_select="ac3_decoder"
1752 eac3_encoder_select="ac3_encoder"
1753 eamad_decoder_select="aandcttables dsputil mpegvideo"
1754 eatgq_decoder_select="aandcttables"
1755 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1756 exr_decoder_select="zlib"
1757 ffv1_decoder_select="dsputil golomb rangecoder"
1758 ffv1_encoder_select="dsputil rangecoder"
1759 ffvhuff_decoder_select="dsputil"
1760 ffvhuff_encoder_select="dsputil huffman"
1761 flac_decoder_select="golomb"
1762 flac_encoder_select="dsputil golomb lpc"
1763 flashsv_decoder_select="zlib"
1764 flashsv_encoder_select="zlib"
1765 flashsv2_encoder_select="zlib"
1766 flashsv2_decoder_select="zlib"
1767 flv_decoder_select="h263_decoder"
1768 flv_encoder_select="h263_encoder"
1769 fourxm_decoder_select="dsputil"
1770 fraps_decoder_select="dsputil huffman"
1771 g729_decoder_select="dsputil"
1772 h261_decoder_select="error_resilience mpegvideo"
1773 h261_encoder_select="aandcttables mpegvideoenc"
1774 h263_decoder_select="error_resilience h263_parser mpegvideo"
1775 h263_encoder_select="aandcttables mpegvideoenc"
1776 h263i_decoder_select="h263_decoder"
1777 h263p_encoder_select="h263_encoder"
1778 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1779 h264_decoder_suggest="error_resilience"
1780 huffyuv_decoder_select="dsputil"
1781 huffyuv_encoder_select="dsputil huffman"
1782 iac_decoder_select="dsputil fft mdct sinewin"
1783 imc_decoder_select="dsputil fft mdct sinewin"
1784 indeo3_decoder_select="hpeldsp"
1785 interplay_video_decoder_select="hpeldsp"
1786 jpegls_decoder_select="dsputil golomb hpeldsp"
1787 jpegls_encoder_select="golomb"
1788 jv_decoder_select="dsputil"
1789 lagarith_decoder_select="dsputil"
1790 ljpeg_encoder_select="aandcttables mpegvideoenc"
1791 loco_decoder_select="golomb"
1792 mdec_decoder_select="dsputil error_resilience mpegvideo"
1793 mimic_decoder_select="dsputil hpeldsp"
1794 mjpeg_decoder_select="dsputil hpeldsp"
1795 mjpegb_decoder_select="dsputil hpeldsp"
1796 mjpeg_encoder_select="aandcttables dsputil mpegvideoenc"
1797 mlp_decoder_select="dsputil mlp_parser"
1798 motionpixels_decoder_select="dsputil"
1799 mp1_decoder_select="mpegaudio"
1800 mp1float_decoder_select="mpegaudio"
1801 mp2_decoder_select="mpegaudio"
1802 mp2float_decoder_select="mpegaudio"
1803 mp3_decoder_select="mpegaudio"
1804 mp3adu_decoder_select="mpegaudio"
1805 mp3adufloat_decoder_select="mpegaudio"
1806 mp3float_decoder_select="mpegaudio"
1807 mp3on4_decoder_select="mpegaudio"
1808 mp3on4float_decoder_select="mpegaudio"
1809 mpc7_decoder_select="dsputil mpegaudiodsp"
1810 mpc8_decoder_select="dsputil mpegaudiodsp"
1811 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1812 mpeg_xvmc_decoder_select="mpeg2video_decoder"
1813 mpeg1video_decoder_select="error_resilience mpegvideo"
1814 mpeg1video_encoder_select="aandcttables mpegvideoenc"
1815 mpeg2video_decoder_select="error_resilience mpegvideo"
1816 mpeg2video_encoder_select="aandcttables mpegvideoenc"
1817 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1818 mpeg4_encoder_select="h263_encoder"
1819 msmpeg4v1_decoder_select="h263_decoder"
1820 msmpeg4v2_decoder_select="h263_decoder"
1821 msmpeg4v2_encoder_select="h263_encoder"
1822 msmpeg4v3_decoder_select="h263_decoder"
1823 msmpeg4v3_encoder_select="h263_encoder"
1824 mss2_decoder_select="error_resilience vc1_decoder"
1825 mxpeg_decoder_select="dsputil hpeldsp"
1826 nellymoser_decoder_select="mdct sinewin"
1827 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
1828 nuv_decoder_select="dsputil lzo"
1829 png_decoder_select="zlib"
1830 png_encoder_select="dsputil zlib"
1831 prores_decoder_select="dsputil"
1832 prores_encoder_select="dsputil"
1833 qcelp_decoder_select="lsp"
1834 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1835 ra_144_encoder_select="audio_frame_queue lpc"
1836 ralf_decoder_select="golomb"
1837 rtjpeg_decoder_select="dsputil"
1838 rv10_decoder_select="error_resilience h263_decoder"
1839 rv10_encoder_select="h263_encoder"
1840 rv20_decoder_select="error_resilience h263_decoder"
1841 rv20_encoder_select="h263_encoder"
1842 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1843 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo videodsp"
1844 shorten_decoder_select="golomb"
1845 sipr_decoder_select="lsp"
1846 snow_decoder_select="dsputil dwt h264qpel hpeldsp rangecoder"
1847 snow_encoder_select="aandcttables dsputil dwt h264qpel hpeldsp mpegvideoenc rangecoder"
1848 sonic_decoder_select="golomb"
1849 sonic_encoder_select="golomb"
1850 sonic_ls_encoder_select="golomb"
1851 sp5x_decoder_select="dsputil hpeldsp"
1852 svq1_decoder_select="hpeldsp"
1853 svq1_encoder_select="aandcttables dsputil hpeldsp mpegvideoenc"
1854 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel hpeldsp mpegvideo videodsp"
1855 svq3_decoder_suggest="error_resilience zlib"
1856 tak_decoder_select="dsputil"
1857 theora_decoder_select="vp3_decoder"
1858 tiff_decoder_suggest="zlib"
1859 tiff_encoder_suggest="zlib"
1860 thp_decoder_select="dsputil hpeldsp"
1861 truehd_decoder_select="mlp_parser"
1862 truemotion2_decoder_select="dsputil"
1863 truespeech_decoder_select="dsputil"
1864 tscc_decoder_select="zlib"
1865 twinvq_decoder_select="mdct lsp sinewin"
1866 utvideo_decoder_select="dsputil"
1867 utvideo_encoder_select="dsputil huffman"
1868 vble_decoder_select="dsputil"
1869 vc1_decoder_select="error_resilience h263_decoder h264chroma h264qpel"
1870 vc1image_decoder_select="vc1_decoder"
1871 vorbis_decoder_select="mdct"
1872 vorbis_encoder_select="mdct"
1873 vp3_decoder_select="hpeldsp vp3dsp videodsp"
1874 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
1875 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
1876 vp6a_decoder_select="vp6_decoder"
1877 vp6f_decoder_select="vp6_decoder"
1878 vp8_decoder_select="h264pred videodsp"
1879 wmapro_decoder_select="mdct sinewin"
1880 wmav1_decoder_select="mdct sinewin"
1881 wmav1_encoder_select="mdct sinewin"
1882 wmav2_decoder_select="mdct sinewin"
1883 wmav2_encoder_select="mdct sinewin"
1884 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1885 wmv1_decoder_select="h263_decoder"
1886 wmv1_encoder_select="h263_encoder"
1887 wmv2_decoder_select="h263_decoder videodsp"
1888 wmv2_encoder_select="h263_encoder"
1889 wmv3_decoder_select="vc1_decoder"
1890 wmv3image_decoder_select="wmv3_decoder"
1891 zerocodec_decoder_select="zlib"
1892 zlib_decoder_select="zlib"
1893 zlib_encoder_select="zlib"
1894 zmbv_decoder_select="zlib"
1895 zmbv_encoder_select="zlib"
1896
1897 # hardware accelerators
1898 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1899 dxva2_deps="dxva2api_h"
1900 vaapi_deps="va_va_h"
1901 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1902 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
1903 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1904
1905 h263_vaapi_hwaccel_deps="vaapi"
1906 h263_vaapi_hwaccel_select="h263_decoder"
1907 h263_vdpau_hwaccel_deps="vdpau"
1908 h263_vdpau_hwaccel_select="h263_decoder"
1909 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1910 h264_dxva2_hwaccel_deps="dxva2"
1911 h264_dxva2_hwaccel_select="h264_decoder"
1912 h264_vaapi_hwaccel_deps="vaapi"
1913 h264_vaapi_hwaccel_select="h264_decoder"
1914 h264_vda_decoder_deps="vda"
1915 h264_vda_decoder_select="h264_decoder"
1916 h264_vda_hwaccel_deps="vda"
1917 h264_vda_hwaccel_select="h264_decoder"
1918 h264_vdpau_decoder_deps="vdpau"
1919 h264_vdpau_decoder_select="h264_decoder"
1920 h264_vdpau_hwaccel_deps="vdpau"
1921 h264_vdpau_hwaccel_select="h264_decoder"
1922 mpeg_vdpau_decoder_deps="vdpau"
1923 mpeg_vdpau_decoder_select="mpeg2video_decoder"
1924 mpeg1_vdpau_decoder_deps="vdpau"
1925 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
1926 mpeg1_vdpau_hwaccel_deps="vdpau"
1927 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
1928 mpeg2_crystalhd_decoder_select="crystalhd"
1929 mpeg2_dxva2_hwaccel_deps="dxva2"
1930 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
1931 mpeg2_vaapi_hwaccel_deps="vaapi"
1932 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
1933 mpeg2_vdpau_hwaccel_deps="vdpau"
1934 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
1935 mpeg4_crystalhd_decoder_select="crystalhd"
1936 mpeg4_vaapi_hwaccel_deps="vaapi"
1937 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
1938 mpeg4_vdpau_decoder_deps="vdpau"
1939 mpeg4_vdpau_decoder_select="mpeg4_decoder"
1940 mpeg4_vdpau_hwaccel_deps="vdpau"
1941 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
1942 msmpeg4_crystalhd_decoder_select="crystalhd"
1943 vc1_crystalhd_decoder_select="crystalhd"
1944 vc1_dxva2_hwaccel_deps="dxva2"
1945 vc1_dxva2_hwaccel_select="vc1_decoder"
1946 vc1_vaapi_hwaccel_deps="vaapi"
1947 vc1_vaapi_hwaccel_select="vc1_decoder"
1948 vc1_vdpau_decoder_deps="vdpau"
1949 vc1_vdpau_decoder_select="vc1_decoder"
1950 vc1_vdpau_hwaccel_deps="vdpau"
1951 vc1_vdpau_hwaccel_select="vc1_decoder"
1952 wmv3_crystalhd_decoder_select="crystalhd"
1953 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1954 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1955 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1956 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1957
1958 # parsers
1959 h264_parser_select="golomb h264chroma h264dsp h264pred h264qpel videodsp"
1960 mpeg4video_parser_select="error_resilience mpegvideo"
1961 mpegvideo_parser_select="error_resilience mpegvideo"
1962 vc1_parser_select="mpegvideo"
1963
1964 # external libraries
1965 libaacplus_encoder_deps="libaacplus"
1966 libcelt_decoder_deps="libcelt"
1967 libfaac_encoder_deps="libfaac"
1968 libfaac_encoder_select="audio_frame_queue"
1969 libfdk_aac_encoder_deps="libfdk_aac"
1970 libfdk_aac_encoder_select="audio_frame_queue"
1971 libgsm_decoder_deps="libgsm"
1972 libgsm_encoder_deps="libgsm"
1973 libgsm_ms_decoder_deps="libgsm"
1974 libgsm_ms_encoder_deps="libgsm"
1975 libilbc_decoder_deps="libilbc"
1976 libilbc_encoder_deps="libilbc"
1977 libmodplug_demuxer_deps="libmodplug"
1978 libmp3lame_encoder_deps="libmp3lame"
1979 libmp3lame_encoder_select="audio_frame_queue"
1980 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1981 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1982 libopencore_amrnb_encoder_select="audio_frame_queue"
1983 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1984 libopenjpeg_decoder_deps="libopenjpeg"
1985 libopenjpeg_encoder_deps="libopenjpeg"
1986 libopus_decoder_deps="libopus"
1987 libopus_encoder_deps="libopus"
1988 libopus_encoder_select="audio_frame_queue"
1989 libquvi_demuxer_deps="libquvi"
1990 libschroedinger_decoder_deps="libschroedinger"
1991 libschroedinger_encoder_deps="libschroedinger"
1992 libshine_encoder_deps="libshine"
1993 libshine_encoder_select="audio_frame_queue"
1994 libspeex_decoder_deps="libspeex"
1995 libspeex_encoder_deps="libspeex"
1996 libspeex_encoder_select="audio_frame_queue"
1997 libstagefright_h264_decoder_deps="libstagefright_h264"
1998 libtheora_encoder_deps="libtheora"
1999 libtwolame_encoder_deps="libtwolame"
2000 libvo_aacenc_encoder_deps="libvo_aacenc"
2001 libvo_aacenc_encoder_select="audio_frame_queue"
2002 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2003 libvorbis_decoder_deps="libvorbis"
2004 libvorbis_encoder_deps="libvorbis"
2005 libvorbis_encoder_select="audio_frame_queue"
2006 libvpx_vp8_decoder_deps="libvpx"
2007 libvpx_vp8_encoder_deps="libvpx"
2008 libvpx_vp9_decoder_deps="libvpx"
2009 libvpx_vp9_encoder_deps="libvpx"
2010 libx264_encoder_deps="libx264"
2011 libx264rgb_encoder_deps="libx264"
2012 libxavs_encoder_deps="libxavs"
2013 libxvid_encoder_deps="libxvid"
2014 libutvideo_decoder_deps="libutvideo"
2015 libutvideo_encoder_deps="libutvideo"
2016
2017 # demuxers / muxers
2018 ac3_demuxer_select="ac3_parser"
2019 asf_stream_muxer_select="asf_muxer"
2020 avisynth_demuxer_deps="avisynth"
2021 dirac_demuxer_select="dirac_parser"
2022 dts_demuxer_select="dca_parser"
2023 dtshd_demuxer_select="dca_parser"
2024 eac3_demuxer_select="ac3_parser"
2025 f4v_muxer_select="mov_muxer"
2026 flac_demuxer_select="flac_parser"
2027 ipod_muxer_select="mov_muxer"
2028 ismv_muxer_select="mov_muxer"
2029 libnut_demuxer_deps="libnut"
2030 libnut_muxer_deps="libnut"
2031 matroska_audio_muxer_select="matroska_muxer"
2032 matroska_demuxer_suggest="bzlib lzo zlib"
2033 mov_demuxer_suggest="zlib"
2034 mov_muxer_select="rtpenc_chain"
2035 mp3_demuxer_select="mpegaudio_parser"
2036 mp4_muxer_select="mov_muxer"
2037 mpegts_muxer_select="adts_muxer latm_muxer"
2038 mpegtsraw_demuxer_select="mpegts_demuxer"
2039 mxf_d10_muxer_select="mxf_muxer"
2040 ogg_demuxer_select="golomb"
2041 psp_muxer_select="mov_muxer"
2042 rtp_demuxer_select="sdp_demuxer"
2043 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2044 rtsp_demuxer_select="http_protocol rtpdec"
2045 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2046 sap_demuxer_select="sdp_demuxer"
2047 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2048 sdp_demuxer_select="rtpdec"
2049 smoothstreaming_muxer_select="ismv_muxer"
2050 spdif_muxer_select="aac_parser"
2051 tak_demuxer_select="tak_parser"
2052 tg2_muxer_select="mov_muxer"
2053 tgp_muxer_select="mov_muxer"
2054 vobsub_demuxer_select="mpegps_demuxer"
2055 w64_demuxer_deps="wav_demuxer"
2056 w64_muxer_deps="wav_muxer"
2057
2058 # indevs / outdevs
2059 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2060 alsa_outdev_deps="alsa_asoundlib_h"
2061 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2062 caca_outdev_deps="libcaca"
2063 dshow_indev_deps="IBaseFilter"
2064 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2065 dv1394_indev_deps="dv1394 dv_demuxer"
2066 fbdev_indev_deps="linux_fb_h"
2067 iec61883_indev_deps="libiec61883"
2068 jack_indev_deps="jack_jack_h pthreads"
2069 lavfi_indev_deps="avfilter"
2070 libcdio_indev_deps="libcdio"
2071 libdc1394_indev_deps="libdc1394"
2072 libv4l2_indev_deps="libv4l2"
2073 openal_indev_deps="openal"
2074 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2075 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2076 pulse_indev_deps="libpulse"
2077 sdl_outdev_deps="sdl"
2078 sndio_indev_deps="sndio_h"
2079 sndio_outdev_deps="sndio_h"
2080 v4l_indev_deps="linux_videodev_h"
2081 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2082 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2083 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2084 vfwcap_indev_extralibs="-lavicap32"
2085 x11grab_indev_deps="x11grab"
2086
2087 # protocols
2088 bluray_protocol_deps="libbluray"
2089 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2090 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2091 ffrtmpcrypt_protocol_select="tcp_protocol"
2092 ffrtmphttp_protocol_deps="!librtmp_protocol"
2093 ffrtmphttp_protocol_select="http_protocol"
2094 ftp_protocol_select="tcp_protocol"
2095 gopher_protocol_select="network"
2096 httpproxy_protocol_select="tcp_protocol"
2097 http_protocol_select="tcp_protocol"
2098 https_protocol_select="tls_protocol"
2099 librtmp_protocol_deps="librtmp"
2100 librtmpe_protocol_deps="librtmp"
2101 librtmps_protocol_deps="librtmp"
2102 librtmpt_protocol_deps="librtmp"
2103 librtmpte_protocol_deps="librtmp"
2104 mmsh_protocol_select="http_protocol"
2105 mmst_protocol_select="network"
2106 rtmp_protocol_deps="!librtmp_protocol"
2107 rtmp_protocol_select="tcp_protocol"
2108 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2109 rtmps_protocol_deps="!librtmp_protocol"
2110 rtmps_protocol_select="tls_protocol"
2111 rtmpt_protocol_select="ffrtmphttp_protocol"
2112 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2113 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2114 rtp_protocol_select="udp_protocol"
2115 sctp_protocol_deps="struct_sctp_event_subscribe"
2116 sctp_protocol_select="network"
2117 srtp_protocol_select="rtp_protocol"
2118 tcp_protocol_select="network"
2119 tls_protocol_deps_any="openssl gnutls"
2120 tls_protocol_select="tcp_protocol"
2121 udp_protocol_select="network"
2122
2123 # filters
2124 aconvert_filter_deps="swresample"
2125 amovie_filter_deps="avcodec avformat"
2126 aresample_filter_deps="swresample"
2127 ass_filter_deps="libass"
2128 asyncts_filter_deps="avresample"
2129 atempo_filter_deps="avcodec rdft"
2130 azmq_filter_deps="libzmq"
2131 blackframe_filter_deps="gpl"
2132 boxblur_filter_deps="gpl"
2133 colormatrix_filter_deps="gpl"
2134 cropdetect_filter_deps="gpl"
2135 dctdnoiz_filter_deps="avcodec fft"
2136 delogo_filter_deps="gpl"
2137 deshake_filter_deps="avcodec"
2138 deshake_filter_select="dsputil"
2139 drawtext_filter_deps="libfreetype"
2140 ebur128_filter_deps="gpl"
2141 flite_filter_deps="libflite"
2142 frei0r_filter_deps="frei0r dlopen"
2143 frei0r_filter_extralibs='$ldl'
2144 frei0r_src_filter_deps="frei0r dlopen"
2145 frei0r_src_filter_extralibs='$ldl'
2146 geq_filter_deps="gpl"
2147 histeq_filter_deps="gpl"
2148 hqdn3d_filter_deps="gpl"
2149 hue_filter_deps="gpl"
2150 interlace_filter_deps="gpl"
2151 kerndeint_filter_deps="gpl"
2152 movie_filter_deps="avcodec avformat"
2153 mp_filter_deps="gpl avcodec swscale inline_asm"
2154 mpdecimate_filter_deps="gpl avcodec"
2155 mptestsrc_filter_deps="gpl"
2156 negate_filter_deps="lut_filter"
2157 noise_filter_deps="gpl"
2158 resample_filter_deps="avresample"
2159 ocv_filter_deps="libopencv"
2160 owdenoise_filter_deps="gpl"
2161 pan_filter_deps="swresample"
2162 pp_filter_deps="gpl postproc"
2163 removelogo_filter_deps="avcodec avformat swscale"
2164 scale_filter_deps="swscale"
2165 smartblur_filter_deps="gpl swscale"
2166 showspectrum_filter_deps="avcodec rdft"
2167 stereo3d_filter_deps="gpl"
2168 subtitles_filter_deps="avformat avcodec libass"
2169 super2xsai_filter_deps="gpl"
2170 tinterlace_filter_deps="gpl"
2171 vidstabdetect_filter_deps="libvidstab"
2172 vidstabtransform_filter_deps="libvidstab"
2173 yadif_filter_deps="gpl"
2174 pixfmts_super2xsai_test_deps="super2xsai_filter"
2175 tinterlace_merge_test_deps="tinterlace_filter"
2176 tinterlace_pad_test_deps="tinterlace_filter"
2177 zmq_filter_deps="libzmq"
2178
2179 # libraries
2180 avcodec_deps="avutil"
2181 avdevice_deps="avutil avcodec avformat"
2182 avfilter_deps="avutil"
2183 avformat_deps="avutil avcodec"
2184 avresample_deps="avutil"
2185 postproc_deps="avutil gpl"
2186 swscale_deps="avutil"
2187
2188 # programs
2189 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
2190 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2191                null_filter
2192                setpts_filter trim_filter"
2193 ffplay_deps="avcodec avformat swscale swresample sdl"
2194 ffplay_select="rdft crop_filter"
2195 ffprobe_deps="avcodec avformat"
2196 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
2197 ffserver_extralibs='$ldl'
2198
2199 # documentation
2200 podpages_deps="perl"
2201 manpages_deps="perl pod2man"
2202 htmlpages_deps="texi2html"
2203 txtpages_deps="makeinfo"
2204 doc_deps_any="manpages htmlpages podpages txtpages"
2205
2206 # default parameters
2207
2208 logfile="config.log"
2209
2210 # installation paths
2211 prefix_default="/usr/local"
2212 bindir_default='${prefix}/bin'
2213 datadir_default='${prefix}/share/ffmpeg'
2214 incdir_default='${prefix}/include'
2215 libdir_default='${prefix}/lib'
2216 mandir_default='${prefix}/share/man'
2217 shlibdir_default="$libdir_default"
2218
2219 # toolchain
2220 ar_default="ar"
2221 cc_default="gcc"
2222 cxx_default="g++"
2223 host_cc_default="gcc"
2224 cp_f="cp -f"
2225 install="install"
2226 ln_s="ln -s -f"
2227 nm_default="nm -g"
2228 objformat="elf"
2229 pkg_config_default=pkg-config
2230 ranlib="ranlib"
2231 strip_default="strip"
2232 yasmexe_default="yasm"
2233
2234 nogas=":"
2235
2236 # machine
2237 arch_default=$(uname -m)
2238 cpu="generic"
2239
2240 # OS
2241 target_os_default=$(tolower $(uname -s))
2242 host_os=$target_os_default
2243
2244 # configurable options
2245 enable $PROGRAM_LIST
2246 enable $DOCUMENT_LIST
2247 enable $(filter_out avresample $LIBRARY_LIST)
2248 enable stripping
2249
2250 enable asm
2251 enable debug
2252 enable doc
2253 enable optimizations
2254 enable runtime_cpudetect
2255 enable safe_bitstream_reader
2256 enable static
2257 enable swscale_alpha
2258
2259 # Enable hwaccels by default.
2260 enable dxva2 vaapi vdpau
2261
2262 # build settings
2263 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2264 FFSERVERLDFLAGS=-Wl,-E
2265 LIBPREF="lib"
2266 LIBSUF=".a"
2267 FULLNAME='$(NAME)$(BUILDSUF)'
2268 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2269 SLIBPREF="lib"
2270 SLIBSUF=".so"
2271 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2272 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2273 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2274 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2275 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2276 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2277
2278 asflags_filter=echo
2279 cflags_filter=echo
2280 ldflags_filter=echo
2281
2282 AS_C='-c'
2283 AS_O='-o $@'
2284 CC_C='-c'
2285 CC_E='-E -o $@'
2286 CC_O='-o $@'
2287 CXX_C='-c'
2288 CXX_O='-o $@'
2289 LD_O='-o $@'
2290 LD_LIB='-l%'
2291 LD_PATH='-L'
2292 HOSTCC_C='-c'
2293 HOSTCC_O='-o $@'
2294 HOSTLD_O='-o $@'
2295
2296 host_cflags='-O3 -g'
2297 host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
2298 host_libs='-lm'
2299 host_cflags_filter=echo
2300 host_ldflags_filter=echo
2301
2302 target_path='$(CURDIR)'
2303
2304 # since the object filename is not given with the -MM flag, the compiler
2305 # is only able to print the basename, and we must add the path ourselves
2306 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2307 DEPFLAGS='-MM'
2308
2309 # find source path
2310 if test -f configure; then
2311     source_path=.
2312 else
2313     source_path=$(cd $(dirname "$0"); pwd)
2314     echo "$source_path" | grep -q '[[:blank:]]' &&
2315         die "Out of tree builds are impossible with whitespace in source path."
2316     test -e "$source_path/config.h" &&
2317         die "Out of tree builds are impossible with config.h in source dir."
2318 fi
2319
2320 for v in "$@"; do
2321     r=${v#*=}
2322     l=${v%"$r"}
2323     r=$(sh_quote "$r")
2324     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2325 done
2326
2327 find_things(){
2328     thing=$1
2329     pattern=$2
2330     file=$source_path/$3
2331     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2332 }
2333
2334 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2335 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2336 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2337 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2338 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2339 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2340 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2341 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2342 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2343 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2344 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2345
2346 ALL_COMPONENTS="
2347     $BSF_LIST
2348     $DECODER_LIST
2349     $DEMUXER_LIST
2350     $ENCODER_LIST
2351     $FILTER_LIST
2352     $HWACCEL_LIST
2353     $INDEV_LIST
2354     $MUXER_LIST
2355     $OUTDEV_LIST
2356     $PARSER_LIST
2357     $PROTOCOL_LIST
2358 "
2359
2360 for n in $COMPONENT_LIST; do
2361     v=$(toupper ${n%s})_LIST
2362     eval enable \$$v
2363     eval ${n}_if_any="\$$v"
2364 done
2365
2366 enable $ARCH_EXT_LIST
2367
2368 die_unknown(){
2369     echo "Unknown option \"$1\"."
2370     echo "See $0 --help for available options."
2371     exit 1
2372 }
2373
2374 print_3_columns() {
2375     cat | tr ' ' '\n' | sort | pr -r -3 -t
2376 }
2377
2378 show_list() {
2379     suffix=_$1
2380     shift
2381     echo $* | sed s/$suffix//g | print_3_columns
2382     exit 0
2383 }
2384
2385 rand_list(){
2386     IFS=', '
2387     set -- $*
2388     unset IFS
2389     for thing; do
2390         comp=${thing%:*}
2391         prob=${thing#$comp}
2392         prob=${prob#:}
2393         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2394         echo "prob ${prob:-0.5}"
2395         printf '%s\n' $comp
2396     done
2397 }
2398
2399 do_random(){
2400     action=$1
2401     shift
2402     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2403     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2404 }
2405
2406 for opt do
2407     optval="${opt#*=}"
2408     case "$opt" in
2409         --extra-ldflags=*)
2410             add_ldflags $optval
2411         ;;
2412         --extra-libs=*)
2413             add_extralibs $optval
2414         ;;
2415         --disable-devices)
2416             disable $INDEV_LIST $OUTDEV_LIST
2417         ;;
2418         --enable-debug=*)
2419             debuglevel="$optval"
2420         ;;
2421         --disable-programs)
2422             disable $PROGRAM_LIST
2423         ;;
2424         --disable-everything)
2425             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2426         ;;
2427         --disable-all)
2428             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2429             disable $LIBRARY_LIST $PROGRAM_LIST doc
2430         ;;
2431         --enable-random|--disable-random)
2432             action=${opt%%-random}
2433             do_random ${action#--} $COMPONENT_LIST
2434         ;;
2435         --enable-random=*|--disable-random=*)
2436             action=${opt%%-random=*}
2437             do_random ${action#--} $optval
2438         ;;
2439         --enable-*=*|--disable-*=*)
2440             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2441             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2442             eval list=\$$(toupper $thing)_LIST
2443             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2444             list=$(filter "$name" $list)
2445             [ "$list" = "" ] && warn "Option $opt did not match anything"
2446             $action $list
2447         ;;
2448         --enable-?*|--disable-?*)
2449             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2450             if is_in $option $COMPONENT_LIST; then
2451                 test $action = disable && action=unset
2452                 eval $action \$$(toupper ${option%s})_LIST
2453             elif is_in $option $CMDLINE_SELECT; then
2454                 $action $option
2455             else
2456                 die_unknown $opt
2457             fi
2458         ;;
2459         --list-*)
2460             NAME="${opt#--list-}"
2461             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2462             NAME=${NAME%s}
2463             eval show_list $NAME \$$(toupper $NAME)_LIST
2464         ;;
2465         --help|-h) show_help
2466         ;;
2467         --fatal-warnings) enable fatal_warnings
2468         ;;
2469         *)
2470             optname="${opt%%=*}"
2471             optname="${optname#--}"
2472             optname=$(echo "$optname" | sed 's/-/_/g')
2473             if is_in $optname $CMDLINE_SET; then
2474                 eval $optname='$optval'
2475             elif is_in $optname $CMDLINE_APPEND; then
2476                 append $optname "$optval"
2477             else
2478                 die_unknown $opt
2479             fi
2480         ;;
2481     esac
2482 done
2483
2484 disabled logging && logfile=/dev/null
2485
2486 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2487 set >> $logfile
2488
2489 test -n "$cross_prefix" && enable cross_compile
2490
2491 if enabled cross_compile; then
2492     test -n "$arch" && test -n "$target_os" ||
2493         die "Must specify target arch and OS when cross-compiling"
2494 fi
2495
2496 ar_default="${cross_prefix}${ar_default}"
2497 cc_default="${cross_prefix}${cc_default}"
2498 cxx_default="${cross_prefix}${cxx_default}"
2499 nm_default="${cross_prefix}${nm_default}"
2500 pkg_config_default="${cross_prefix}${pkg_config_default}"
2501 ranlib="${cross_prefix}${ranlib}"
2502 strip_default="${cross_prefix}${strip_default}"
2503
2504 sysinclude_default="${sysroot}/usr/include"
2505
2506 test -n "$valgrind" && toolchain="valgrind-memcheck"
2507
2508 case "$toolchain" in
2509     clang-asan)
2510         cc_default="clang"
2511         add_cflags  -fsanitize=address
2512         add_ldflags -fsanitize=address
2513     ;;
2514     clang-tsan)
2515         cc_default="clang"
2516         add_cflags  -fsanitize=thread -pie
2517         add_ldflags -fsanitize=thread -pie
2518     ;;
2519     valgrind-massif)
2520         target_exec_default=${valgrind:-"valgrind"}
2521         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2522     ;;
2523     valgrind-memcheck)
2524         target_exec_default=${valgrind:-"valgrind"}
2525         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2526     ;;
2527     msvc)
2528         cc_default="c99wrap cl"
2529         ld_default="c99wrap link"
2530         nm_default="dumpbin -symbols"
2531         ar_default="lib"
2532         target_os_default="win32"
2533     ;;
2534     icl)
2535         cc_default="c99wrap -noconv icl"
2536         ld_default="c99wrap xilink"
2537         nm_default="dumpbin -symbols"
2538         ar_default="xilib"
2539         target_os_default="win32"
2540     ;;
2541     gcov)
2542         add_cflags  -fprofile-arcs -ftest-coverage
2543         add_ldflags -fprofile-arcs -ftest-coverage
2544     ;;
2545     ?*)
2546         die "Unknown toolchain $toolchain"
2547     ;;
2548 esac
2549
2550 set_default arch cc cxx pkg_config strip sysinclude target_exec target_os yasmexe
2551 enabled cross_compile || host_cc_default=$cc
2552 set_default host_cc
2553
2554 if ! $pkg_config --version >/dev/null 2>&1; then
2555     warn "$pkg_config not found, library detection may fail."
2556     pkg_config=false
2557 fi
2558
2559 exesuf() {
2560     case $1 in
2561         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2562     esac
2563 }
2564
2565 EXESUF=$(exesuf $target_os)
2566 HOSTEXESUF=$(exesuf $host_os)
2567
2568 # set temporary file name
2569 : ${TMPDIR:=$TEMPDIR}
2570 : ${TMPDIR:=$TMP}
2571 : ${TMPDIR:=/tmp}
2572
2573 if ! check_cmd mktemp -u XXXXXX; then
2574     # simple replacement for missing mktemp
2575     # NOT SAFE FOR GENERAL USE
2576     mktemp(){
2577         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2578     }
2579 fi
2580
2581 tmpfile(){
2582     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2583         (set -C; exec > $tmp) 2>/dev/null ||
2584         die "Unable to create temporary file in $TMPDIR."
2585     append TMPFILES $tmp
2586     eval $1=$tmp
2587 }
2588
2589 trap 'rm -f -- $TMPFILES' EXIT
2590
2591 tmpfile TMPASM .asm
2592 tmpfile TMPC   .c
2593 tmpfile TMPCPP .cpp
2594 tmpfile TMPE   $EXESUF
2595 tmpfile TMPH   .h
2596 tmpfile TMPO   .o
2597 tmpfile TMPS   .S
2598 tmpfile TMPSH  .sh
2599 tmpfile TMPV   .ver
2600
2601 unset -f mktemp
2602
2603 chmod +x $TMPE
2604
2605 # make sure we can execute files in $TMPDIR
2606 cat > $TMPSH 2>> $logfile <<EOF
2607 #! /bin/sh
2608 EOF
2609 chmod +x $TMPSH >> $logfile 2>&1
2610 if ! $TMPSH >> $logfile 2>&1; then
2611     cat <<EOF
2612 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2613 variable to another directory and make sure that it is not mounted noexec.
2614 EOF
2615     die "Sanity test failed."
2616 fi
2617
2618 ccc_flags(){
2619     for flag; do
2620         case $flag in
2621             -std=c99)           echo -c99                       ;;
2622             -mcpu=*)            echo -arch ${flag#*=}           ;;
2623             -mieee)             echo -ieee                      ;;
2624             -O*|-fast)          echo $flag                      ;;
2625             -fno-math-errno)    echo -assume nomath_errno       ;;
2626             -g)                 echo -g3                        ;;
2627             -Wall)              echo -msg_enable level2         ;;
2628             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2629             -Wl,*)              echo $flag                      ;;
2630             -f*|-W*)                                            ;;
2631             *)                  echo $flag                      ;;
2632         esac
2633    done
2634 }
2635
2636 msvc_flags(){
2637     for flag; do
2638         case $flag in
2639             -fomit-frame-pointer) echo -Oy ;;
2640             -g)                   echo -Z7 ;;
2641             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2642                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2643                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2644                                        -wd4554 \
2645                                        -wd4996 -wd4273 ;;
2646             -std=c99)             ;;
2647             -fno-math-errno)      ;;
2648             -fno-common)          ;;
2649             -fno-signed-zeros)    ;;
2650             -fPIC)                ;;
2651             -lz)                  echo zlib.lib ;;
2652             -lavifil32)           echo vfw32.lib ;;
2653             -lavicap32)           echo vfw32.lib user32.lib ;;
2654             -l*)                  echo ${flag#-l}.lib ;;
2655             *)                    echo $flag ;;
2656         esac
2657     done
2658 }
2659
2660 pgi_flags(){
2661     for flag; do
2662         case $flag in
2663             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2664             -fomit-frame-pointer) echo -Mnoframe ;;
2665             -g)                   echo -gopt ;;
2666             *)                    echo $flag ;;
2667         esac
2668     done
2669 }
2670
2671 suncc_flags(){
2672     for flag; do
2673         case $flag in
2674             -march=*|-mcpu=*)
2675                 case "${flag#*=}" in
2676                     native)                   echo -xtarget=native       ;;
2677                     v9|niagara)               echo -xarch=sparc          ;;
2678                     ultrasparc)               echo -xarch=sparcvis       ;;
2679                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2680                     i586|pentium)             echo -xchip=pentium        ;;
2681                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2682                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2683                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2684                     pentium4*)          echo -xtarget=pentium4           ;;
2685                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2686                     *-sse3)             echo -xarch=sse3                 ;;
2687                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2688                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2689                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2690                     amdfam10|barcelona)       echo -xtarget=barcelona    ;;
2691                     bdver*)                   echo -xarch=avx            ;;
2692                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2693                     k8|opteron|athlon64|athlon-fx)
2694                                               echo -xarch=sse2a          ;;
2695                     athlon*)                  echo -xarch=pentium_proa   ;;
2696                 esac
2697                 ;;
2698             -std=c99)             echo -xc99              ;;
2699             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2700             -fPIC)                echo -KPIC -xcode=pic32 ;;
2701             -W*,*)                echo $flag              ;;
2702             -f*-*|-W*|-mimpure-text)                      ;;
2703             -shared)              echo -G                 ;;
2704             *)                    echo $flag              ;;
2705         esac
2706     done
2707 }
2708
2709 tms470_flags(){
2710     for flag; do
2711         case $flag in
2712             -march=*|-mcpu=*)
2713                 case "${flag#*=}" in
2714                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2715                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2716                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2717                     armv6*|arm11*)          echo -mv=6   ;;
2718                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2719                                             echo -mv=5e  ;;
2720                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2721                 esac
2722                 ;;
2723             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2724             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2725             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2726             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2727             -msoft-float)   echo --float_support=vfplib       ;;
2728             -O[0-3]|-mf=*)  echo $flag                        ;;
2729             -g)             echo -g -mn                       ;;
2730             -pds=*)         echo $flag                        ;;
2731             -D*|-I*)        echo $flag                        ;;
2732             --gcc|--abi=*)  echo $flag                        ;;
2733             -me)            echo $flag                        ;;
2734         esac
2735     done
2736 }
2737
2738 probe_cc(){
2739     pfx=$1
2740     _cc=$2
2741
2742     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2743     unset _ld_o _ldflags _ld_lib _ld_path
2744     unset _depflags _DEPCMD _DEPFLAGS
2745     _flags_filter=echo
2746
2747     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2748         _type=llvm_gcc
2749         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2750         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2751         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2752         _cflags_speed='-O3'
2753         _cflags_size='-Os'
2754     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2755         _type=gcc
2756         gcc_version=$($_cc --version | head -n1)
2757         gcc_basever=$($_cc -dumpversion)
2758         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2759         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2760         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2761         if ! $_cc -dumpversion | grep -q '^2\.'; then
2762             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2763         fi
2764         _cflags_speed='-O3'
2765         _cflags_size='-Os'
2766     elif $_cc --version 2>/dev/null | grep -q ^icc; then
2767         _type=icc
2768         _ident=$($_cc --version | head -n1)
2769         _depflags='-MMD'
2770         _cflags_speed='-O3'
2771         _cflags_size='-Os'
2772         _cflags_noopt='-O1'
2773     elif $_cc -v 2>&1 | grep -q xlc; then
2774         _type=xlc
2775         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2776         _cflags_speed='-O5'
2777         _cflags_size='-O5 -qcompact'
2778     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2779         _type=ccc
2780         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2781         _DEPFLAGS='-M'
2782         _cflags_speed='-fast'
2783         _cflags_size='-O1'
2784         _flags_filter=ccc_flags
2785     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2786         test -d "$sysroot" || die "No valid sysroot specified."
2787         _type=armcc
2788         _ident=$($_cc --vsn | head -n1)
2789         armcc_conf="$PWD/armcc.conf"
2790         $_cc --arm_linux_configure                 \
2791              --arm_linux_config_file="$armcc_conf" \
2792              --configure_sysroot="$sysroot"        \
2793              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2794              die "Error creating armcc configuration file."
2795         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2796         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2797         as_default="${cross_prefix}gcc"
2798         _depflags='-MMD'
2799         _cflags_speed='-O3'
2800         _cflags_size='-Os'
2801     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2802         _type=tms470
2803         _ident=$($_cc -version | head -n1 | tr -s ' ')
2804         _flags='--gcc --abi=eabi -me'
2805         _cc_e='-ppl -fe=$@'
2806         _cc_o='-fe=$@'
2807         _depflags='-ppa -ppd=$(@:.o=.d)'
2808         _cflags_speed='-O3 -mf=5'
2809         _cflags_size='-O3 -mf=2'
2810         _flags_filter=tms470_flags
2811     elif $_cc -v 2>&1 | grep -q clang; then
2812         _type=clang
2813         _ident=$($_cc --version | head -n1)
2814         _depflags='-MMD'
2815         _cflags_speed='-O3'
2816         _cflags_size='-Os'
2817     elif $_cc -V 2>&1 | grep -q Sun; then
2818         _type=suncc
2819         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2820         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2821         _DEPFLAGS='-xM1 -xc99'
2822         _ldflags='-std=c99'
2823         _cflags_speed='-O5'
2824         _cflags_size='-O5 -xspace'
2825         _flags_filter=suncc_flags
2826     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2827         _type=pathscale
2828         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2829         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2830         _cflags_speed='-O2'
2831         _cflags_size='-Os'
2832         _flags_filter='filter_out -Wdisabled-optimization'
2833     elif $_cc -v 2>&1 | grep -q Open64; then
2834         _type=open64
2835         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2836         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2837         _cflags_speed='-O2'
2838         _cflags_size='-Os'
2839         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2840     elif $_cc -V 2>&1 | grep -q Portland; then
2841         _type=pgi
2842         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2843         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2844         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2845         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2846         _cflags_noopt="-O"
2847         _flags_filter=pgi_flags
2848     elif $_cc 2>&1 | grep -q Microsoft; then
2849         _type=msvc
2850         _ident=$($cc 2>&1 | head -n1)
2851         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2852         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2853         _cflags_speed="-O2"
2854         _cflags_size="-O1"
2855         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2856         if $_cc 2>&1 | grep -q Linker; then
2857             _ld_o='-out $@'
2858         else
2859             _ld_o='-Fe$@'
2860         fi
2861         _cc_o='-Fo $@'
2862         _cc_e='-P -Fi $@'
2863         _flags_filter=msvc_flags
2864         _ld_lib='lib%.a'
2865         _ld_path='-libpath:'
2866         _flags='-nologo'
2867         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2868         if [ $pfx = hostcc ]; then
2869             append _cflags -Dsnprintf=_snprintf
2870         fi
2871         disable stripping
2872     elif $_cc 2>&1 | grep -q Intel; then
2873         _type=icl
2874         _ident=$($cc 2>&1 | head -n1)
2875         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
2876         # Not only is O3 broken on 13.x+ but it's slower on all previous versions (tested) as well
2877         _cflags_speed="-O2"
2878         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
2879         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2880         if $_cc 2>&1 | grep -q Linker; then
2881             _ld_o='-out $@'
2882         else
2883             _ld_o='-Fe$@'
2884         fi
2885         _cc_o='-Fo $@'
2886         _cc_e='-P'
2887         _flags_filter=msvc_flags
2888         _ld_lib='lib%.a'
2889         _ld_path='-libpath:'
2890         # -Qdiag-error to make icl error when presented with certain unknown arguments
2891         _flags='-nologo -Qdiag-error:10157 -Qdiag-error:4044'
2892         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency with msvc which enables it by default
2893         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64 -Qstd=c99 -Qms0 -Qvec- -Qsimd- -GS'
2894         if [ $pfx = hostcc ]; then
2895             append _cflags -Dsnprintf=_snprintf
2896         fi
2897     fi
2898
2899     eval ${pfx}_type=\$_type
2900     eval ${pfx}_ident=\$_ident
2901 }
2902
2903 set_ccvars(){
2904     eval ${1}_C=\${_cc_c-\${${1}_C}}
2905     eval ${1}_E=\${_cc_e-\${${1}_E}}
2906     eval ${1}_O=\${_cc_o-\${${1}_O}}
2907
2908     if [ -n "$_depflags" ]; then
2909         eval ${1}_DEPFLAGS=\$_depflags
2910     else
2911         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2912         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2913         eval DEP${1}FLAGS=\$_flags
2914     fi
2915 }
2916
2917 probe_cc cc "$cc"
2918 cflags_filter=$_flags_filter
2919 cflags_speed=$_cflags_speed
2920 cflags_size=$_cflags_size
2921 cflags_noopt=$_cflags_noopt
2922 add_cflags $_flags $_cflags
2923 cc_ldflags=$_ldflags
2924 set_ccvars CC
2925
2926 probe_cc hostcc "$host_cc"
2927 host_cflags_filter=$_flags_filter
2928 add_host_cflags  $_flags $_cflags
2929 set_ccvars HOSTCC
2930
2931 test -n "$cc_type" && enable $cc_type ||
2932     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2933
2934 : ${as_default:=$cc}
2935 : ${dep_cc_default:=$cc}
2936 : ${ld_default:=$cc}
2937 : ${host_ld_default:=$host_cc}
2938 set_default ar as dep_cc ld host_ld
2939
2940 probe_cc as "$as"
2941 asflags_filter=$_flags_filter
2942 add_asflags $_flags $_cflags
2943 set_ccvars AS
2944
2945 probe_cc ld "$ld"
2946 ldflags_filter=$_flags_filter
2947 add_ldflags $_flags $_ldflags
2948 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2949 LD_O=${_ld_o-$LD_O}
2950 LD_LIB=${_ld_lib-$LD_LIB}
2951 LD_PATH=${_ld_path-$LD_PATH}
2952
2953 probe_cc hostld "$host_ld"
2954 host_ldflags_filter=$_flags_filter
2955 add_host_ldflags $_flags $_ldflags
2956 HOSTLD_O=${_ld_o-$HOSTLD_O}
2957
2958 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2959     probe_cc depcc "$dep_cc"
2960     CCDEP=${_DEPCMD:-$DEPCMD}
2961     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2962     DEPCCFLAGS=$_flags
2963 fi
2964
2965 if $ar 2>&1 | grep -q Microsoft; then
2966     arflags="-nologo"
2967     ar_o='-out:$@'
2968 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2969     arflags="rq"
2970     ar_o='$@'
2971 else
2972     arflags="rc"
2973     ar_o='$@'
2974 fi
2975
2976 add_cflags $extra_cflags
2977 add_cxxflags $extra_cxxflags
2978 add_asflags $extra_cflags
2979
2980 if test -n "$sysroot"; then
2981     case "$cc_type" in
2982         gcc|llvm_gcc|clang)
2983             add_cppflags --sysroot="$sysroot"
2984             add_ldflags --sysroot="$sysroot"
2985         ;;
2986         tms470)
2987             add_cppflags -I"$sysinclude"
2988             add_ldflags  --sysroot="$sysroot"
2989         ;;
2990     esac
2991 fi
2992
2993 if test "$cpu" = host; then
2994     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2995
2996     case "$cc_type" in
2997         gcc|llvm_gcc)
2998             check_native(){
2999                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3000                 sed -n "/cc1.*$1=/{
3001                             s/.*$1=\\([^ ]*\\).*/\\1/
3002                             p
3003                             q
3004                         }" $TMPE
3005             }
3006             cpu=$(check_native -march || check_native -mcpu)
3007         ;;
3008     esac
3009
3010     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
3011 fi
3012
3013 # Deal with common $arch aliases
3014 case "$arch" in
3015     aarch64|arm64)
3016         arch="aarch64"
3017     ;;
3018     arm*|iPad*)
3019         arch="arm"
3020     ;;
3021     mips*|IP*)
3022         arch="mips"
3023     ;;
3024     parisc*|hppa*)
3025         arch="parisc"
3026     ;;
3027     "Power Macintosh"|ppc*|powerpc*)
3028         arch="ppc"
3029     ;;
3030     s390|s390x)
3031         arch="s390"
3032     ;;
3033     sh4|sh)
3034         arch="sh4"
3035     ;;
3036     sun4u|sparc*)
3037         arch="sparc"
3038     ;;
3039     tilegx|tile-gx)
3040         arch="tilegx"
3041     ;;
3042     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3043         arch="x86"
3044     ;;
3045 esac
3046
3047 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3048 enable $arch
3049
3050 # Add processor-specific flags
3051 if enabled aarch64; then
3052
3053     case $cpu in
3054         armv*)
3055             cpuflags="-march=$cpu"
3056         ;;
3057         *)
3058             cpuflags="-mcpu=$cpu"
3059         ;;
3060     esac
3061
3062 elif enabled alpha; then
3063
3064     cpuflags="-mcpu=$cpu"
3065
3066 elif enabled arm; then
3067
3068     check_arm_arch() {
3069         check_cpp_condition stddef.h \
3070             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3071             $cpuflags
3072     }
3073
3074     probe_arm_arch() {
3075         if   check_arm_arch 4;        then echo armv4;
3076         elif check_arm_arch 4T;       then echo armv4t;
3077         elif check_arm_arch 5;        then echo armv5;
3078         elif check_arm_arch 5E;       then echo armv5e;
3079         elif check_arm_arch 5T;       then echo armv5t;
3080         elif check_arm_arch 5TE;      then echo armv5te;
3081         elif check_arm_arch 5TEJ;     then echo armv5te;
3082         elif check_arm_arch 6;        then echo armv6;
3083         elif check_arm_arch 6J;       then echo armv6j;
3084         elif check_arm_arch 6K;       then echo armv6k;
3085         elif check_arm_arch 6Z;       then echo armv6z;
3086         elif check_arm_arch 6ZK;      then echo armv6zk;
3087         elif check_arm_arch 6T2;      then echo armv6t2;
3088         elif check_arm_arch 7;        then echo armv7;
3089         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3090         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3091         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3092         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3093         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3094         fi
3095     }
3096
3097     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3098
3099     case $cpu in
3100         armv*)
3101             cpuflags="-march=$cpu"
3102             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3103         ;;
3104         *)
3105             cpuflags="-mcpu=$cpu"
3106             case $cpu in
3107                 cortex-a*)                               subarch=armv7a  ;;
3108                 cortex-r*)                               subarch=armv7r  ;;
3109                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3110                 arm11*)                                  subarch=armv6   ;;
3111                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3112                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3113                 *)                             subarch=$(probe_arm_arch) ;;
3114             esac
3115         ;;
3116     esac
3117
3118     case "$subarch" in
3119         armv5t*)    enable fast_clz                ;;
3120         armv[6-8]*) enable fast_clz fast_unaligned ;;
3121     esac
3122
3123 elif enabled avr32; then
3124
3125     case $cpu in
3126         ap7[02]0[0-2])
3127             subarch="avr32_ap"
3128             cpuflags="-mpart=$cpu"
3129         ;;
3130         ap)
3131             subarch="avr32_ap"
3132             cpuflags="-march=$cpu"
3133         ;;
3134         uc3[ab]*)
3135             subarch="avr32_uc"
3136             cpuflags="-mcpu=$cpu"
3137         ;;
3138         uc)
3139             subarch="avr32_uc"
3140             cpuflags="-march=$cpu"
3141         ;;
3142     esac
3143
3144 elif enabled bfin; then
3145
3146     cpuflags="-mcpu=$cpu"
3147
3148 elif enabled mips; then
3149
3150     cpuflags="-march=$cpu"
3151
3152     case $cpu in
3153         24kc)
3154             disable mipsfpu
3155             disable mipsdspr1
3156             disable mipsdspr2
3157         ;;
3158         24kf*)
3159             disable mipsdspr1
3160             disable mipsdspr2
3161         ;;
3162         24kec|34kc|1004kc)
3163             disable mipsfpu
3164             disable mipsdspr2
3165         ;;
3166         24kef*|34kf*|1004kf*)
3167             disable mipsdspr2
3168         ;;
3169         74kc)
3170             disable mipsfpu
3171         ;;
3172     esac
3173
3174 elif enabled ppc; then
3175
3176     case $(tolower $cpu) in
3177         601|ppc601|powerpc601)
3178             cpuflags="-mcpu=601"
3179             disable altivec
3180         ;;
3181         603*|ppc603*|powerpc603*)
3182             cpuflags="-mcpu=603"
3183             disable altivec
3184         ;;
3185         604*|ppc604*|powerpc604*)
3186             cpuflags="-mcpu=604"
3187             disable altivec
3188         ;;
3189         g3|75*|ppc75*|powerpc75*)
3190             cpuflags="-mcpu=750"
3191             disable altivec
3192         ;;
3193         g4|745*|ppc745*|powerpc745*)
3194             cpuflags="-mcpu=7450"
3195         ;;
3196         74*|ppc74*|powerpc74*)
3197             cpuflags="-mcpu=7400"
3198         ;;
3199         g5|970|ppc970|powerpc970)
3200             cpuflags="-mcpu=970"
3201         ;;
3202         power[3-7]*)
3203             cpuflags="-mcpu=$cpu"
3204         ;;
3205         cell)
3206             cpuflags="-mcpu=cell"
3207             enable ldbrx
3208         ;;
3209         e500mc)
3210             cpuflags="-mcpu=e500mc"
3211             disable altivec
3212         ;;
3213         e500v2)
3214             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3215             disable altivec
3216         ;;
3217         e500)
3218             cpuflags="-mcpu=8540 -mhard-float"
3219             disable altivec
3220         ;;
3221     esac
3222
3223 elif enabled sparc; then
3224
3225     case $cpu in
3226         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3227             cpuflags="-mcpu=$cpu"
3228             disable vis
3229         ;;
3230         ultrasparc*|niagara[234])
3231             cpuflags="-mcpu=$cpu"
3232         ;;
3233     esac
3234
3235 elif enabled x86; then
3236
3237     case $cpu in
3238         i[345]86|pentium)
3239             cpuflags="-march=$cpu"
3240             disable mmx
3241         ;;
3242         # targets that do NOT support nopl and conditional mov (cmov)
3243         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3244             cpuflags="-march=$cpu"
3245             disable i686
3246         ;;
3247         # targets that do support nopl and conditional mov (cmov)
3248         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3249             cpuflags="-march=$cpu"
3250             enable i686
3251             enable fast_cmov
3252         ;;
3253         # targets that do support conditional mov but on which it's slow
3254         pentium4|pentium4m|prescott|nocona)
3255             cpuflags="-march=$cpu"
3256             enable i686
3257             disable fast_cmov
3258         ;;
3259     esac
3260
3261 fi
3262
3263 if [ "$cpu" != generic ]; then
3264     add_cflags  $cpuflags
3265     add_asflags $cpuflags
3266 fi
3267
3268 # compiler sanity check
3269 check_exec <<EOF
3270 int main(void){ return 0; }
3271 EOF
3272 if test "$?" != 0; then
3273     echo "$cc is unable to create an executable file."
3274     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3275         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3276         echo "Only do this if you know what cross compiling means."
3277     fi
3278     die "C compiler test failed."
3279 fi
3280
3281 add_cppflags -D_ISOC99_SOURCE
3282 add_cxxflags -D__STDC_CONSTANT_MACROS
3283 check_cflags -std=c99
3284 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3285 #include <stdlib.h>
3286 EOF
3287 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3288 #include <stdlib.h>
3289 EOF
3290
3291 check_host_cflags -std=c99
3292 check_host_cflags -Wall
3293
3294 check_64bit(){
3295     arch32=$1
3296     arch64=$2
3297     expr=$3
3298     check_code cc "" "int test[2*($expr) - 1]" &&
3299         subarch=$arch64 || subarch=$arch32
3300 }
3301
3302 case "$arch" in
3303     aarch64|alpha|ia64)
3304         spic=$shared
3305     ;;
3306     mips)
3307         check_64bit mips mips64 '_MIPS_SIM > 1'
3308         spic=$shared
3309     ;;
3310     parisc)
3311         check_64bit parisc parisc64 'sizeof(void *) > 4'
3312         spic=$shared
3313     ;;
3314     ppc)
3315         check_64bit ppc ppc64 'sizeof(void *) > 4'
3316         spic=$shared
3317     ;;
3318     sparc)
3319         check_64bit sparc sparc64 'sizeof(void *) > 4'
3320         spic=$shared
3321     ;;
3322     x86)
3323         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3324         if test "$subarch" = "x86_64"; then
3325             spic=$shared
3326         fi
3327     ;;
3328     ppc)
3329         check_cc <<EOF && subarch="ppc64"
3330         int test[(int)sizeof(char*) - 7];
3331 EOF
3332     ;;
3333 esac
3334
3335 enable $subarch
3336 enabled spic && enable_weak pic
3337
3338 # OS specific
3339 case $target_os in
3340     haiku)
3341         prefix_default="/boot/common"
3342         network_extralibs="-lnetwork"
3343         host_libs=
3344         ;;
3345     sunos)
3346         FFSERVERLDFLAGS=""
3347         SHFLAGS='-shared -Wl,-h,$$(@F)'
3348         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3349         network_extralibs="-lsocket -lnsl"
3350         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
3351         # When using suncc to build, the Solaris linker will mark
3352         # an executable with each instruction set encountered by
3353         # the Solaris assembler.  As our libraries contain their own
3354         # guards for processor-specific code, instead suppress
3355         # generation of the HWCAPS ELF section on Solaris x86 only.
3356         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
3357         nm_default='nm -P -g'
3358         ;;
3359     netbsd)
3360         disable symver
3361         oss_indev_extralibs="-lossaudio"
3362         oss_outdev_extralibs="-lossaudio"
3363         enabled gcc || check_ldflags -Wl,-zmuldefs
3364         ;;
3365     openbsd|bitrig)
3366         disable symver
3367         SHFLAGS='-shared'
3368         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3369         SLIB_INSTALL_LINKS=
3370         oss_indev_extralibs="-lossaudio"
3371         oss_outdev_extralibs="-lossaudio"
3372         ;;
3373     dragonfly)
3374         disable symver
3375         ;;
3376     freebsd)
3377         ;;
3378     bsd/os)
3379         add_extralibs -lpoll -lgnugetopt
3380         strip="strip -d"
3381         ;;
3382     darwin)
3383         gas="gas-preprocessor.pl $cc"
3384         enabled ppc && add_asflags -force_cpusubtype_ALL
3385         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3386         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3387         strip="${strip} -x"
3388         add_ldflags -Wl,-dynamic,-search_paths_first
3389         SLIBSUF=".dylib"
3390         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3391         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3392         FFSERVERLDFLAGS=-Wl,-bind_at_load
3393         objformat="macho"
3394         enabled x86_64 && objformat="macho64"
3395         enabled_any pic shared ||
3396             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3397         ;;
3398     mingw32*)
3399         if test $target_os = "mingw32ce"; then
3400             disable network
3401         else
3402             target_os=mingw32
3403         fi
3404         LIBTARGET=i386
3405         if enabled x86_64; then
3406             LIBTARGET="i386:x86-64"
3407         elif enabled arm; then
3408             LIBTARGET=arm-wince
3409         fi
3410         check_ldflags -Wl,--nxcompat
3411         check_ldflags -Wl,--dynamicbase
3412         shlibdir_default="$bindir_default"
3413         SLIBPREF=""
3414         SLIBSUF=".dll"
3415         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3416         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3417         dlltool="${cross_prefix}dlltool"
3418         if check_cmd lib.exe -list; then
3419             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3420             if enabled x86_64; then
3421                 LIBTARGET=x64
3422             fi
3423         elif check_cmd $dlltool --version; then
3424             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
3425         fi
3426         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3427         SLIB_INSTALL_LINKS=
3428         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3429         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3430         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
3431         objformat="win32"
3432         ranlib=:
3433         enable dos_paths
3434         disable pic
3435         ;;
3436     win32|win64)
3437         if enabled shared; then
3438             # Link to the import library instead of the normal static library
3439             # for shared libs.
3440             LD_LIB='%.lib'
3441             # Cannot build shared and static libraries at the same time with
3442             # MSVC.
3443             disable static
3444         fi
3445         shlibdir_default="$bindir_default"
3446         SLIBPREF=""
3447         SLIBSUF=".dll"
3448         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3449         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3450         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
3451         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3452         SLIB_INSTALL_LINKS=
3453         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
3454         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
3455         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
3456         objformat="win32"
3457         ranlib=:
3458         enable dos_paths
3459         disable pic
3460         ;;
3461     cygwin*)
3462         target_os=cygwin
3463         shlibdir_default="$bindir_default"
3464         SLIBPREF="cyg"
3465         SLIBSUF=".dll"
3466         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
3467         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
3468         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
3469         SLIB_INSTALL_LINKS=
3470         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
3471         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
3472         objformat="win32"
3473         enable dos_paths
3474         disable pic
3475         ;;
3476     *-dos|freedos|opendos)
3477         network_extralibs="-lsocket"
3478         objformat="coff"
3479         enable dos_paths
3480         add_cppflags -U__STRICT_ANSI__
3481         ;;
3482     linux)
3483         enable dv1394
3484         ;;
3485     irix*)
3486         target_os=irix
3487         ranlib="echo ignoring ranlib"
3488         ;;
3489     os/2*)
3490         strip="lxlite -CS"
3491         ln_s="cp -f"
3492         objformat="aout"
3493         add_cppflags -D_GNU_SOURCE
3494         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
3495         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
3496         FFSERVERLDFLAGS=""
3497         LIBSUF="_s.a"
3498         SLIBPREF=""
3499         SLIBSUF=".dll"
3500         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
3501         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
3502         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
3503             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
3504             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
3505             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
3506             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
3507             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
3508         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
3509             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
3510         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
3511         enable dos_paths
3512         enable_weak os2threads
3513         ;;
3514     gnu/kfreebsd)
3515         add_cppflags -D_BSD_SOURCE
3516         ;;
3517     gnu)
3518         ;;
3519     qnx)
3520         add_cppflags -D_QNX_SOURCE
3521         network_extralibs="-lsocket"
3522         ;;
3523     symbian)
3524         SLIBSUF=".dll"
3525         enable dos_paths
3526         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3527         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3528         add_ldflags -Wl,--target1-abs,--no-undefined \
3529                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3530                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3531         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3532                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3533                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3534         ;;
3535     osf1)
3536         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3537         FFSERVERLDFLAGS=
3538         ;;
3539     minix)
3540         ;;
3541     plan9)
3542         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3543                      -D_REENTRANT_SOURCE        \
3544                      -D_RESEARCH_SOURCE         \
3545                      -DFD_SETSIZE=96            \
3546                      -DHAVE_SOCK_OPTS
3547         add_compat strtod.o strtod=avpriv_strtod
3548         network_extralibs='-lbsd'
3549         exeobjs=compat/plan9/main.o
3550         disable ffserver
3551         cp_f='cp'
3552         ;;
3553     none)
3554         ;;
3555     *)
3556         die "Unknown OS '$target_os'."
3557         ;;
3558 esac
3559
3560 # determine libc flavour
3561
3562 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3563 if check_cpp_condition features.h "defined __UCLIBC__"; then
3564     libc_type=uclibc
3565     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3566 elif check_cpp_condition features.h "defined __GLIBC__"; then
3567     libc_type=glibc
3568     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3569 # MinGW headers can be installed on Cygwin, so check for newlib first.
3570 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3571     libc_type=newlib
3572     add_cppflags -U__STRICT_ANSI__
3573 elif check_header _mingw.h; then
3574     libc_type=mingw
3575     check_cpp_condition _mingw.h \
3576         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3577             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3578         die "ERROR: MinGW runtime version must be >= 3.15."
3579     add_cppflags -U__STRICT_ANSI__
3580     if check_cpp_condition _mingw.h "defined(__MINGW64_VERSION_MAJOR) && \
3581             __MINGW64_VERSION_MAJOR < 3"; then
3582         add_compat msvcrt/snprintf.o
3583         add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
3584     fi
3585 elif check_func_headers stdlib.h _get_doserrno; then
3586     libc_type=msvcrt
3587     add_compat strtod.o strtod=avpriv_strtod
3588     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3589                                  _snprintf=avpriv_snprintf  \
3590                                  vsnprintf=avpriv_vsnprintf
3591     # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
3592     # 0x601 by default unless something else is set by the user.
3593     # This can easily lead to us detecting functions only present
3594     # in such new versions and producing binaries requiring windows 7.0.
3595     # Therefore explicitly set the default to XP unless the user has
3596     # set something else on the command line.
3597     check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
3598 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3599     libc_type=klibc
3600 elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
3601     libc_type=bionic
3602     add_compat strtod.o strtod=avpriv_strtod
3603 fi
3604
3605 test -n "$libc_type" && enable $libc_type
3606
3607 # hacks for compiler/libc/os combinations
3608
3609 if enabled_all tms470 glibc; then
3610     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3611     add_cppflags -D__USER_LABEL_PREFIX__=
3612     add_cppflags -D__builtin_memset=memset
3613     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3614     add_cflags   -pds=48    # incompatible redefinition of macro
3615 fi
3616
3617 if enabled_all ccc glibc; then
3618     add_ldflags -Wl,-z,now  # calls to libots crash without this
3619 fi
3620
3621 esc(){
3622     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3623 }
3624
3625 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
3626
3627 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
3628
3629 set_default $PATHS_LIST
3630 set_default nm
3631
3632 # we need to build at least one lib type
3633 if ! enabled_any static shared; then
3634     cat <<EOF
3635 At least one library type must be built.
3636 Specify --enable-static to build the static libraries or --enable-shared to
3637 build the shared libraries as well. To only build the shared libraries specify
3638 --disable-static in addition to --enable-shared.
3639 EOF
3640     exit 1;
3641 fi
3642
3643 die_license_disabled() {
3644     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3645 }
3646
3647 die_license_disabled_gpl() {
3648     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
3649 }
3650
3651 die_license_disabled gpl libcdio
3652 die_license_disabled gpl libutvideo
3653 die_license_disabled gpl libvidstab
3654 die_license_disabled gpl libx264
3655 die_license_disabled gpl libxavs
3656 die_license_disabled gpl libxvid
3657 die_license_disabled gpl x11grab
3658
3659 die_license_disabled nonfree libaacplus
3660 die_license_disabled nonfree libfaac
3661 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
3662 enabled gpl && die_license_disabled_gpl nonfree openssl
3663
3664 die_license_disabled version3 libopencore_amrnb
3665 die_license_disabled version3 libopencore_amrwb
3666 die_license_disabled version3 libvo_aacenc
3667 die_license_disabled version3 libvo_amrwbenc
3668
3669 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3670
3671 disabled optimizations || check_cflags -fomit-frame-pointer
3672
3673 enable_weak_pic() {
3674     disabled pic && return
3675     enable pic
3676     add_cppflags -DPIC
3677     add_cflags   -fPIC
3678     add_asflags  -fPIC
3679 }
3680
3681 enabled pic && enable_weak_pic
3682
3683 check_cc <<EOF || die "Symbol mangling check failed."
3684 int ff_extern;
3685 EOF
3686 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3687 extern_prefix=${sym%%ff_extern*}
3688
3689 check_cc <<EOF && enable_weak inline_asm
3690 void foo(void) { __asm__ volatile ("" ::); }
3691 EOF
3692
3693 _restrict=
3694 for restrict_keyword in restrict __restrict__ __restrict; do
3695     check_cc <<EOF && _restrict=$restrict_keyword && break
3696 void foo(char * $restrict_keyword p);
3697 EOF
3698 done
3699
3700 check_cc <<EOF && enable attribute_packed
3701 struct { int x; } __attribute__((packed)) x;
3702 EOF
3703
3704 check_cc <<EOF && enable attribute_may_alias
3705 union { int x; } __attribute__((may_alias)) x;
3706 EOF
3707
3708 check_cc <<EOF || die "endian test failed"
3709 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3710 EOF
3711 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3712
3713 if enabled alpha; then
3714
3715     check_cflags -mieee
3716
3717 elif enabled arm; then
3718
3719     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
3720 float func(float a, float b){ return a+b; }
3721 EOF
3722
3723     enabled thumb && check_cflags -mthumb || check_cflags -marm
3724     nogas=die
3725
3726     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3727         enable vfp_args
3728     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3729         case "${cross_prefix:-$cc}" in
3730             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3731             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3732 __asm__ (".eabi_attribute 28, 1");
3733 int main(void) { return 0; }
3734 EOF
3735         esac
3736         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3737     fi
3738
3739     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3740     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3741     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3742     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3743     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3744     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3745
3746     [ $target_os = linux ] ||
3747         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3748             $ARCH_EXT_LIST_ARM
3749
3750     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3751     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3752
3753     enabled_all armv6t2 shared !pic && enable_weak_pic
3754
3755 elif enabled mips; then
3756
3757     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3758     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
3759      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
3760     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3761      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3762     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3763      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3764     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
3765      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3766
3767 elif enabled parisc; then
3768
3769     if enabled gcc; then
3770         case $($cc -dumpversion) in
3771             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3772         esac
3773     fi
3774
3775 elif enabled ppc; then
3776
3777     enable local_aligned_8 local_aligned_16
3778
3779     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3780     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3781     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3782     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3783
3784     # AltiVec flags: The FSF version of GCC differs from the Apple version
3785     if enabled altivec; then
3786         nogas=warn
3787         check_cflags -maltivec -mabi=altivec &&
3788         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3789         check_cflags -faltivec
3790
3791         # check if our compiler supports Motorola AltiVec C API
3792         check_cc <<EOF || disable altivec
3793 $inc_altivec_h
3794 int main(void) {
3795     vector signed int v1 = (vector signed int) { 0 };
3796     vector signed int v2 = (vector signed int) { 1 };
3797     v1 = vec_add(v1, v2);
3798     return 0;
3799 }
3800 EOF
3801
3802         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3803     fi
3804
3805 elif enabled sparc; then
3806
3807     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3808
3809 elif enabled x86; then
3810
3811     check_builtin rdtsc    intrin.h   "__rdtsc()"
3812     check_builtin mm_empty mmintrin.h "_mm_empty()"
3813
3814     enable local_aligned_8 local_aligned_16
3815
3816     # check whether EBP is available on x86
3817     # As 'i' is stored on the stack, this program will crash
3818     # if the base pointer is used to access it because the
3819     # base pointer is cleared in the inline assembly code.
3820     check_exec_crash <<EOF && enable ebp_available
3821 volatile int i=0;
3822 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3823 return i;
3824 EOF
3825
3826     # check whether EBX is available on x86
3827     check_inline_asm ebx_available '""::"b"(0)' &&
3828         check_inline_asm ebx_available '"":::"%ebx"'
3829
3830     # check whether xmm clobbers are supported
3831     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3832
3833     # check whether binutils is new enough to compile SSSE3/MMXEXT
3834     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3835     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3836
3837     if ! disabled_any asm mmx yasm; then
3838         if check_cmd $yasmexe --version; then
3839             enabled x86_64 && yasm_extra="-m amd64"
3840             yasm_debug="-g dwarf2"
3841         elif check_cmd nasm -v; then
3842             yasmexe=nasm
3843             yasm_debug="-g -F dwarf"
3844             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3845         fi
3846
3847         YASMFLAGS="-f $objformat $yasm_extra"
3848         enabled pic               && append YASMFLAGS "-DPIC"
3849         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3850         case "$objformat" in
3851             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3852         esac
3853
3854         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3855             die "yasm not found, use --disable-yasm for a crippled build"
3856         check_yasm "vextractf128 xmm0, ymm0, 0"      || disable avx_external
3857         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3858         check_yasm "CPU amdnop" && enabled i686 && enable cpunop
3859     fi
3860
3861     case "$cpu" in
3862         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3863             disable fast_clz
3864         ;;
3865     esac
3866
3867 fi
3868
3869 if enabled asm; then
3870     as=${gas:=$as}
3871     check_as <<EOF && enable gnu_as || \
3872         $nogas "GNU assembler not found, install gas-preprocessor"
3873 .macro m n
3874 \n: .int 0
3875 .endm
3876 m x
3877 EOF
3878 fi
3879
3880 check_ldflags -Wl,--as-needed
3881
3882 if check_func dlopen; then
3883     ldl=
3884 elif check_func dlopen -ldl; then
3885     ldl=-ldl
3886 fi
3887
3888 if ! disabled network; then
3889     check_type "sys/types.h sys/socket.h" socklen_t
3890     check_type netdb.h "struct addrinfo"
3891     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3892     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3893     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3894     check_type netinet/in.h "struct sockaddr_in6"
3895     check_type poll.h "struct pollfd"
3896     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3897     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3898     check_type netinet/sctp.h "struct sctp_event_subscribe"
3899     check_func getaddrinfo $network_extralibs
3900     check_func getservbyport $network_extralibs
3901     # Prefer arpa/inet.h over winsock2
3902     if check_header arpa/inet.h ; then
3903         check_func closesocket
3904     elif check_header winsock2.h ; then
3905         check_func_headers winsock2.h closesocket -lws2 &&
3906             network_extralibs="-lws2" ||
3907         { check_func_headers winsock2.h closesocket -lws2_32 &&
3908             network_extralibs="-lws2_32"; }
3909         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3910         check_type ws2tcpip.h socklen_t
3911         check_type ws2tcpip.h "struct addrinfo"
3912         check_type ws2tcpip.h "struct group_source_req"
3913         check_type ws2tcpip.h "struct ip_mreq_source"
3914         check_type ws2tcpip.h "struct ipv6_mreq"
3915         check_type winsock2.h "struct pollfd"
3916         check_type ws2tcpip.h "struct sockaddr_in6"
3917         check_type ws2tcpip.h "struct sockaddr_storage"
3918         check_struct winsock2.h "struct sockaddr" sa_len
3919     else
3920         disable network
3921     fi
3922 fi
3923
3924 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3925 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3926
3927 check_func  access
3928 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3929 check_func  fcntl
3930 check_func  fork
3931 check_func_headers stdlib.h getenv
3932 check_func  gethrtime
3933 check_func  getopt
3934 check_func  getrusage
3935 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3936 check_func  gettimeofday
3937 check_func  inet_aton $network_extralibs
3938 check_func  isatty
3939 check_func  localtime_r
3940 check_func  ${malloc_prefix}memalign            && enable memalign
3941 check_func  mkstemp
3942 check_func  mmap
3943 check_func  mprotect
3944 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3945 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3946 check_func  setrlimit
3947 check_func  strerror_r
3948 check_func  sched_getaffinity
3949 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
3950 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
3951 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
3952 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
3953 check_func  sysconf
3954 check_func  sysctl
3955 check_func  usleep
3956 check_func_headers conio.h kbhit
3957 check_func_headers windows.h PeekNamedPipe
3958 check_func_headers io.h setmode
3959 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3960 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3961 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3962 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3963 check_func_headers windows.h GetProcessAffinityMask
3964 check_func_headers windows.h GetProcessTimes
3965 check_func_headers windows.h GetSystemTimeAsFileTime
3966 check_func_headers windows.h MapViewOfFile
3967 check_func_headers windows.h SetConsoleTextAttribute
3968 check_func_headers windows.h Sleep
3969 check_func_headers windows.h VirtualAlloc
3970 check_func_headers glob.h glob
3971
3972 check_header cl/cl.h
3973 check_header direct.h
3974 check_header dlfcn.h
3975 check_header dxva.h
3976 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3977 check_header io.h
3978 check_header libcrystalhd/libcrystalhd_if.h
3979 check_header malloc.h
3980 check_header poll.h
3981 check_header sys/mman.h
3982 check_header sys/param.h
3983 check_header sys/resource.h
3984 check_header sys/select.h
3985 check_header sys/time.h
3986 check_header termios.h
3987 check_header unistd.h
3988 check_header vdpau/vdpau.h
3989 check_header vdpau/vdpau_x11.h
3990 check_header VideoDecodeAcceleration/VDADecoder.h
3991 check_header windows.h
3992 check_header X11/extensions/XvMClib.h
3993 check_header asm/types.h
3994
3995 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3996 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3997
3998 if ! disabled w32threads && ! enabled pthreads; then
3999     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
4000 fi
4001
4002 # check for some common methods of building with pthread support
4003 # do this before the optional library checks as some of them require pthreads
4004 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4005     enable pthreads
4006     if check_func pthread_create; then
4007         :
4008     elif check_func pthread_create -pthread; then
4009         add_cflags -pthread
4010         add_extralibs -pthread
4011     elif check_func pthread_create -pthreads; then
4012         add_cflags -pthreads
4013         add_extralibs -pthreads
4014     elif check_func pthread_create -lpthreadGC2; then
4015         add_extralibs -lpthreadGC2
4016     elif ! check_lib pthread.h pthread_create -lpthread; then
4017         disable pthreads
4018     fi
4019 fi
4020
4021 for thread in $THREADS_LIST; do
4022     if enabled $thread; then
4023         test -n "$thread_type" &&
4024             die "ERROR: Only one thread type must be selected." ||
4025             thread_type="$thread"
4026     fi
4027 done
4028
4029 if enabled pthreads; then
4030   check_func pthread_cancel
4031 fi
4032
4033 enabled sync_val_compare_and_swap && enable atomics_gcc
4034 enabled machine_rw_barrier && enabled atomic_cas_ptr && enable atomics_suncc
4035 enabled MemoryBarrier && enable atomics_win32
4036
4037 check_lib math.h sin -lm && LIBM="-lm"
4038 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4039
4040 atan2f_args=2