]> granicus.if.org Git - libvpx/blob - configure
Merge "cosmetics: Change few types to their posix version"
[libvpx] / configure
1 #!/bin/sh
2 ##
3 ##  configure
4 ##
5 ##  This script is the front-end to the build system. It provides a similar
6 ##  interface to standard configure scripts with some extra bits for dealing
7 ##  with toolchains that differ from the standard POSIX interface and
8 ##  for extracting subsets of the source tree. In theory, reusable parts
9 ##  of this script were intended to live in build/make/configure.sh,
10 ##  but in practice, the line is pretty blurry.
11 ##
12 ##  This build system is based in part on the FFmpeg configure script.
13 ##
14
15 #source_path="`dirname \"$0\"`"
16 source_path=${0%/*}
17 . "${source_path}/build/make/configure.sh"
18
19 show_help(){
20     show_help_pre
21     cat << EOF
22 Advanced options:
23   ${toggle_libs}                  libraries
24   ${toggle_examples}              examples
25   ${toggle_docs}                  documentation
26   ${toggle_unit_tests}            unit tests
27   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
28   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
29   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
30   --libc=PATH                     path to alternate libc
31   --size-limit=WxH                max size to allow in the decoder
32   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
33   --sdk-path=PATH                 path to root of sdk (android builds only)
34   ${toggle_codec_srcs}            in/exclude codec library source code
35   ${toggle_debug_libs}            in/exclude debug version of libraries
36   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
37   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
38   ${toggle_better_hw_compatibility}
39                                   enable encoder to produce streams with better
40                                   hardware decoder compatibility
41   ${toggle_vp8}                   VP8 codec support
42   ${toggle_vp9}                   VP9 codec support
43   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
44   ${toggle_postproc}              postprocessing
45   ${toggle_vp9_postproc}          vp9 specific postprocessing
46   ${toggle_multithread}           multithreaded encoding and decoding
47   ${toggle_spatial_resampling}    spatial sampling (scaling) support
48   ${toggle_realtime_only}         enable this option while building for real-time encoding
49   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
50   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
51   ${toggle_coefficient_range_checking}
52                                   enable decoder to check if intermediate
53                                   transform coefficients are in valid range
54   ${toggle_runtime_cpu_detect}    runtime cpu detection
55   ${toggle_shared}                shared library support
56   ${toggle_static}                static library support
57   ${toggle_small}                 favor smaller size over speed
58   ${toggle_postproc_visualizer}   macro block / block level visualizers
59   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
60   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
61   ${toggle_vp9_temporal_denoising}
62                                   enable vp9 temporal denoising
63   ${toggle_webm_io}               enable input from and output to WebM container
64   ${toggle_libyuv}                enable libyuv
65
66 Codecs:
67   Codecs can be selectively enabled or disabled individually, or by family:
68       --disable-<codec>
69   is equivalent to:
70       --disable-<codec>-encoder
71       --disable-<codec>-decoder
72
73   Codecs available in this distribution:
74 EOF
75 #restore editor state '
76
77     family="";
78     last_family="";
79     c="";
80     str="";
81     for c in ${CODECS}; do
82         family=${c%_*}
83         if [ "${family}" != "${last_family}" ]; then
84             [ -z "${str}" ] || echo "${str}"
85             str="$(printf '    %10s:' ${family})"
86         fi
87         str="${str} $(printf '%10s' ${c#*_})"
88         last_family=${family}
89     done
90     echo "${str}"
91     show_help_post
92 }
93
94 ##
95 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
96 ##
97
98 # all_platforms is a list of all supported target platforms. Maintain
99 # alphabetically by architecture, generic-gnu last.
100 all_platforms="${all_platforms} arm64-darwin-gcc"
101 all_platforms="${all_platforms} arm64-linux-gcc"
102 all_platforms="${all_platforms} armv6-linux-rvct"
103 all_platforms="${all_platforms} armv6-linux-gcc"
104 all_platforms="${all_platforms} armv6-none-rvct"
105 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
106 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
107 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
108 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
109 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
110 all_platforms="${all_platforms} armv7-win32-vs11"
111 all_platforms="${all_platforms} armv7-win32-vs12"
112 all_platforms="${all_platforms} armv7-win32-vs14"
113 all_platforms="${all_platforms} armv7s-darwin-gcc"
114 all_platforms="${all_platforms} armv8-linux-gcc"
115 all_platforms="${all_platforms} mips32-linux-gcc"
116 all_platforms="${all_platforms} mips64-linux-gcc"
117 all_platforms="${all_platforms} sparc-solaris-gcc"
118 all_platforms="${all_platforms} x86-android-gcc"
119 all_platforms="${all_platforms} x86-darwin8-gcc"
120 all_platforms="${all_platforms} x86-darwin8-icc"
121 all_platforms="${all_platforms} x86-darwin9-gcc"
122 all_platforms="${all_platforms} x86-darwin9-icc"
123 all_platforms="${all_platforms} x86-darwin10-gcc"
124 all_platforms="${all_platforms} x86-darwin11-gcc"
125 all_platforms="${all_platforms} x86-darwin12-gcc"
126 all_platforms="${all_platforms} x86-darwin13-gcc"
127 all_platforms="${all_platforms} x86-darwin14-gcc"
128 all_platforms="${all_platforms} x86-darwin15-gcc"
129 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
130 all_platforms="${all_platforms} x86-linux-gcc"
131 all_platforms="${all_platforms} x86-linux-icc"
132 all_platforms="${all_platforms} x86-os2-gcc"
133 all_platforms="${all_platforms} x86-solaris-gcc"
134 all_platforms="${all_platforms} x86-win32-gcc"
135 all_platforms="${all_platforms} x86-win32-vs7"
136 all_platforms="${all_platforms} x86-win32-vs8"
137 all_platforms="${all_platforms} x86-win32-vs9"
138 all_platforms="${all_platforms} x86-win32-vs10"
139 all_platforms="${all_platforms} x86-win32-vs11"
140 all_platforms="${all_platforms} x86-win32-vs12"
141 all_platforms="${all_platforms} x86-win32-vs14"
142 all_platforms="${all_platforms} x86_64-android-gcc"
143 all_platforms="${all_platforms} x86_64-darwin9-gcc"
144 all_platforms="${all_platforms} x86_64-darwin10-gcc"
145 all_platforms="${all_platforms} x86_64-darwin11-gcc"
146 all_platforms="${all_platforms} x86_64-darwin12-gcc"
147 all_platforms="${all_platforms} x86_64-darwin13-gcc"
148 all_platforms="${all_platforms} x86_64-darwin14-gcc"
149 all_platforms="${all_platforms} x86_64-darwin15-gcc"
150 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
151 all_platforms="${all_platforms} x86_64-linux-gcc"
152 all_platforms="${all_platforms} x86_64-linux-icc"
153 all_platforms="${all_platforms} x86_64-solaris-gcc"
154 all_platforms="${all_platforms} x86_64-win64-gcc"
155 all_platforms="${all_platforms} x86_64-win64-vs8"
156 all_platforms="${all_platforms} x86_64-win64-vs9"
157 all_platforms="${all_platforms} x86_64-win64-vs10"
158 all_platforms="${all_platforms} x86_64-win64-vs11"
159 all_platforms="${all_platforms} x86_64-win64-vs12"
160 all_platforms="${all_platforms} x86_64-win64-vs14"
161 all_platforms="${all_platforms} generic-gnu"
162
163 # all_targets is a list of all targets that can be configured
164 # note that these should be in dependency order for now.
165 all_targets="libs examples docs"
166
167 # all targets available are enabled, by default.
168 for t in ${all_targets}; do
169     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
170 done
171
172 if ! perl --version >/dev/null; then
173     die "Perl is required to build"
174 fi
175
176
177 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
178   # test to see if source_path already configured
179   if [ -f "${source_path}/vpx_config.h" ]; then
180     die "source directory already configured; run 'make distclean' there first"
181   fi
182 fi
183
184 # check installed doxygen version
185 doxy_version=$(doxygen --version 2>/dev/null)
186 doxy_major=${doxy_version%%.*}
187 if [ ${doxy_major:-0} -ge 1 ]; then
188     doxy_version=${doxy_version#*.}
189     doxy_minor=${doxy_version%%.*}
190     doxy_patch=${doxy_version##*.}
191
192     [ $doxy_major -gt 1 ] && enable_feature doxygen
193     [ $doxy_minor -gt 5 ] && enable_feature doxygen
194     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
195 fi
196
197 # disable codecs when their source directory does not exist
198 [ -d "${source_path}/vp8" ] || disable_codec vp8
199 [ -d "${source_path}/vp9" ] || disable_codec vp9
200
201 # install everything except the sources, by default. sources will have
202 # to be enabled when doing dist builds, since that's no longer a common
203 # case.
204 enabled doxygen && enable_feature install_docs
205 enable_feature install_bins
206 enable_feature install_libs
207
208 enable_feature static
209 enable_feature optimizations
210 enable_feature dependency_tracking
211 enable_feature spatial_resampling
212 enable_feature multithread
213 enable_feature os_support
214 enable_feature temporal_denoising
215
216 CODECS="
217     vp8_encoder
218     vp8_decoder
219     vp9_encoder
220     vp9_decoder
221 "
222 CODEC_FAMILIES="
223     vp8
224     vp9
225 "
226
227 ARCH_LIST="
228     arm
229     mips
230     x86
231     x86_64
232 "
233 ARCH_EXT_LIST_X86="
234     mmx
235     sse
236     sse2
237     sse3
238     ssse3
239     sse4_1
240     avx
241     avx2
242 "
243 ARCH_EXT_LIST="
244     edsp
245     media
246     neon
247     neon_asm
248
249     mips32
250     dspr2
251     msa
252     mips64
253
254     ${ARCH_EXT_LIST_X86}
255 "
256 HAVE_LIST="
257     ${ARCH_EXT_LIST}
258     vpx_ports
259     pthread_h
260     unistd_h
261 "
262 EXPERIMENT_LIST="
263     spatial_svc
264     fp_mb_stats
265     emulate_hardware
266     misc_fixes
267 "
268 CONFIG_LIST="
269     dependency_tracking
270     external_build
271     install_docs
272     install_bins
273     install_libs
274     install_srcs
275     use_x86inc
276     debug
277     gprof
278     gcov
279     rvct
280     gcc
281     msvs
282     pic
283     big_endian
284
285     codec_srcs
286     debug_libs
287
288     dequant_tokens
289     dc_recon
290     runtime_cpu_detect
291     postproc
292     vp9_postproc
293     multithread
294     internal_stats
295     ${CODECS}
296     ${CODEC_FAMILIES}
297     encoders
298     decoders
299     static_msvcrt
300     spatial_resampling
301     realtime_only
302     onthefly_bitpacking
303     error_concealment
304     shared
305     static
306     small
307     postproc_visualizer
308     os_support
309     unit_tests
310     webm_io
311     libyuv
312     decode_perf_tests
313     encode_perf_tests
314     multi_res_encoding
315     temporal_denoising
316     vp9_temporal_denoising
317     coefficient_range_checking
318     vp9_highbitdepth
319     better_hw_compatibility
320     experimental
321     size_limit
322     ${EXPERIMENT_LIST}
323 "
324 CMDLINE_SELECT="
325     dependency_tracking
326     external_build
327     extra_warnings
328     werror
329     install_docs
330     install_bins
331     install_libs
332     install_srcs
333     debug
334     gprof
335     gcov
336     pic
337     use_x86inc
338     optimizations
339     ccache
340     runtime_cpu_detect
341     thumb
342
343     libs
344     examples
345     docs
346     libc
347     as
348     size_limit
349     codec_srcs
350     debug_libs
351
352     dequant_tokens
353     dc_recon
354     postproc
355     vp9_postproc
356     multithread
357     internal_stats
358     ${CODECS}
359     ${CODEC_FAMILIES}
360     static_msvcrt
361     spatial_resampling
362     realtime_only
363     onthefly_bitpacking
364     error_concealment
365     shared
366     static
367     small
368     postproc_visualizer
369     unit_tests
370     webm_io
371     libyuv
372     decode_perf_tests
373     encode_perf_tests
374     multi_res_encoding
375     temporal_denoising
376     vp9_temporal_denoising
377     coefficient_range_checking
378     better_hw_compatibility
379     vp9_highbitdepth
380     experimental
381 "
382
383 process_cmdline() {
384     for opt do
385         optval="${opt#*=}"
386         case "$opt" in
387         --disable-codecs)
388           for c in ${CODEC_FAMILIES}; do disable_codec $c; done
389           ;;
390         --enable-?*|--disable-?*)
391         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
392         if is_in ${option} ${EXPERIMENT_LIST}; then
393             if enabled experimental; then
394                 ${action}_feature $option
395             else
396                 log_echo "Ignoring $opt -- not in experimental mode."
397             fi
398         elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
399             ${action}_codec ${option}
400         else
401             process_common_cmdline $opt
402         fi
403         ;;
404         *) process_common_cmdline "$opt"
405         ;;
406         esac
407     done
408 }
409
410 post_process_cmdline() {
411     c=""
412
413     # Enable all detected codecs, if they haven't been disabled
414     for c in ${CODECS}; do soft_enable $c; done
415
416     # Enable the codec family if any component of that family is enabled
417     for c in ${CODECS}; do
418         enabled $c && enable_feature ${c%_*}
419     done
420
421     # Set the {en,de}coders variable if any algorithm in that class is enabled
422     for c in ${CODECS}; do
423         enabled ${c} && enable_feature ${c##*_}s
424     done
425 }
426
427
428 process_targets() {
429     enabled child || write_common_config_banner
430     write_common_target_config_h ${BUILD_PFX}vpx_config.h
431     write_common_config_targets
432
433     # Calculate the default distribution name, based on the enabled features
434     cf=""
435     DIST_DIR=vpx
436     for cf in $CODEC_FAMILIES; do
437         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
438             DIST_DIR="${DIST_DIR}-${cf}"
439         elif enabled ${cf}_encoder; then
440             DIST_DIR="${DIST_DIR}-${cf}cx"
441         elif enabled ${cf}_decoder; then
442             DIST_DIR="${DIST_DIR}-${cf}dx"
443         fi
444     done
445     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
446     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
447     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
448     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
449     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
450     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
451     case "${tgt_os}" in
452     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
453           DIST_DIR="${DIST_DIR}-${tgt_cc}"
454           ;;
455     esac
456     if [ -f "${source_path}/build/make/version.sh" ]; then
457         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
458         DIST_DIR="${DIST_DIR}-${ver}"
459         VERSION_STRING=${ver}
460         ver=${ver%%-*}
461         VERSION_PATCH=${ver##*.}
462         ver=${ver%.*}
463         VERSION_MINOR=${ver##*.}
464         ver=${ver#v}
465         VERSION_MAJOR=${ver%.*}
466     fi
467     enabled child || cat <<EOF >> config.mk
468
469 PREFIX=${prefix}
470 ifeq (\$(MAKECMDGOALS),dist)
471 DIST_DIR?=${DIST_DIR}
472 else
473 DIST_DIR?=\$(DESTDIR)${prefix}
474 endif
475 LIBSUBDIR=${libdir##${prefix}/}
476
477 VERSION_STRING=${VERSION_STRING}
478
479 VERSION_MAJOR=${VERSION_MAJOR}
480 VERSION_MINOR=${VERSION_MINOR}
481 VERSION_PATCH=${VERSION_PATCH}
482
483 CONFIGURE_ARGS=${CONFIGURE_ARGS}
484 EOF
485     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
486
487     #
488     # Write makefiles for all enabled targets
489     #
490     for tgt in libs examples docs solution; do
491         tgt_fn="$tgt-$toolchain.mk"
492
493         if enabled $tgt; then
494             echo "Creating makefiles for ${toolchain} ${tgt}"
495             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
496             #write_${tgt}_config
497         fi
498     done
499
500 }
501
502 process_detect() {
503     if enabled shared; then
504         # Can only build shared libs on a subset of platforms. Doing this check
505         # here rather than at option parse time because the target auto-detect
506         # magic happens after the command line has been parsed.
507         case "${tgt_os}" in
508         linux|os2|darwin*|iphonesimulator*)
509             # Supported platforms
510             ;;
511         *)
512             if enabled gnu; then
513                 echo "--enable-shared is only supported on ELF; assuming this is OK"
514             else
515                 die "--enable-shared only supported on ELF, OS/2, and Darwin for now"
516             fi
517             ;;
518         esac
519     fi
520     if [ -z "$CC" ] || enabled external_build; then
521         echo "Bypassing toolchain for environment detection."
522         enable_feature external_build
523         check_header() {
524             log fake_check_header "$@"
525             header=$1
526             shift
527             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
528             disable_feature $var
529             # Headers common to all environments
530             case $header in
531                 stdio.h)
532                     true;
533                 ;;
534                 *)
535                     result=false
536                     for d in "$@"; do
537                         [ -f "${d##-I}/$header" ] && result=true && break
538                     done
539                     ${result:-true}
540             esac && enable_feature $var
541
542             # Specialize windows and POSIX environments.
543             case $toolchain in
544                 *-win*-*)
545                     # Don't check for any headers in Windows builds.
546                     false
547                 ;;
548                 *)
549                     case $header in
550                         pthread.h) true;;
551                         unistd.h) true;;
552                         *) false;;
553                     esac && enable_feature $var
554             esac
555             enabled $var
556         }
557         check_ld() {
558             true
559         }
560     fi
561     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
562     check_ld <<EOF || die "Toolchain is unable to link executables"
563 int main(void) {return 0;}
564 EOF
565     # check system headers
566     check_header pthread.h
567     check_header unistd.h # for sysconf(3) and friends.
568
569     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
570 }
571
572 process_toolchain() {
573     process_common_toolchain
574
575     # Enable some useful compiler flags
576     if enabled gcc; then
577         enabled werror && check_add_cflags -Werror
578         check_add_cflags -Wall
579         check_add_cflags -Wdeclaration-after-statement
580         check_add_cflags -Wdisabled-optimization
581         check_add_cflags -Wpointer-arith
582         check_add_cflags -Wtype-limits
583         check_add_cflags -Wcast-qual
584         check_add_cflags -Wvla
585         check_add_cflags -Wimplicit-function-declaration
586         check_add_cflags -Wuninitialized
587         check_add_cflags -Wunused-variable
588         case ${CC} in
589           *clang*)
590               # libvpx and/or clang have issues with aliasing:
591               # https://code.google.com/p/webm/issues/detail?id=603
592               # work around them until they are fixed
593               check_add_cflags -fno-strict-aliasing
594           ;;
595           *) check_add_cflags -Wunused-but-set-variable ;;
596         esac
597         if enabled mips || [ -z "${INLINE}" ]; then
598           enabled extra_warnings || check_add_cflags -Wno-unused-function
599         else
600           check_add_cflags -Wunused-function
601         fi
602     fi
603
604     if enabled icc; then
605         enabled werror && check_add_cflags -Werror
606         check_add_cflags -Wall
607         check_add_cflags -Wpointer-arith
608
609         # ICC has a number of floating point optimizations that we disable
610         # in favor of deterministic output WRT to other compilers
611         add_cflags -fp-model precise
612     fi
613
614     # Enable extra, harmless warnings. These might provide additional insight
615     # to what the compiler is doing and why, but in general, but they shouldn't
616     # be treated as fatal, even if we're treating warnings as errors.
617     GCC_EXTRA_WARNINGS="
618         -Wdisabled-optimization
619         -Winline
620     "
621     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
622     RVCT_EXTRA_WARNINGS="
623         --remarks
624     "
625     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
626     if enabled extra_warnings; then
627         for w in ${EXTRA_WARNINGS}; do
628             check_add_cflags ${w}
629             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
630         done
631     fi
632
633     # ccache only really works on gcc toolchains
634     enabled gcc || soft_disable ccache
635     if enabled mips; then
636         enable_feature dequant_tokens
637         enable_feature dc_recon
638     fi
639
640     if enabled internal_stats; then
641         enable_feature vp9_postproc
642     fi
643
644     # Enable the postbuild target if building for visual studio.
645     case "$tgt_cc" in
646         vs*) enable_feature msvs
647              enable_feature solution
648              vs_version=${tgt_cc##vs}
649              case $vs_version in
650              [789])
651                  VCPROJ_SFX=vcproj
652                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
653                  ;;
654              10|11|12|14)
655                  VCPROJ_SFX=vcxproj
656                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
657                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
658                  ;;
659              esac
660              all_targets="${all_targets} solution"
661              INLINE="__forceinline"
662         ;;
663     esac
664
665     # Other toolchain specific defaults
666     case $toolchain in x86*) soft_enable postproc;; esac
667
668     if enabled postproc_visualizer; then
669         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
670     fi
671
672     # Enable unit tests by default if we have a working C++ compiler.
673     case "$toolchain" in
674         *-vs*)
675             soft_enable unit_tests
676             soft_enable webm_io
677             soft_enable libyuv
678         ;;
679         *-android-*)
680             soft_enable webm_io
681             soft_enable libyuv
682             # GTestLog must be modified to use Android logging utilities.
683         ;;
684         *-darwin-*)
685             # iOS/ARM builds do not work with gtest. This does not match
686             # x86 targets.
687         ;;
688         *-iphonesimulator-*)
689             soft_enable webm_io
690             soft_enable libyuv
691         ;;
692         *-win*)
693             # Some mingw toolchains don't have pthread available by default.
694             # Treat these more like visual studio where threading in gtest
695             # would be disabled for the same reason.
696             check_cxx "$@" <<EOF && soft_enable unit_tests
697 int z;
698 EOF
699             check_cxx "$@" <<EOF && soft_enable webm_io
700 int z;
701 EOF
702             check_cxx "$@" <<EOF && soft_enable libyuv
703 int z;
704 EOF
705         ;;
706         *)
707             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
708 int z;
709 EOF
710             check_cxx "$@" <<EOF && soft_enable webm_io
711 int z;
712 EOF
713             check_cxx "$@" <<EOF && soft_enable libyuv
714 int z;
715 EOF
716         ;;
717     esac
718     # libwebm needs to be linked with C++ standard library
719     enabled webm_io && LD=${CXX}
720
721     # append any user defined extra cflags
722     if [ -n "${extra_cflags}" ] ; then
723         check_add_cflags ${extra_cflags} || \
724         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
725     fi
726     if [ -n "${extra_cxxflags}" ]; then
727         check_add_cxxflags ${extra_cxxflags} || \
728         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
729     fi
730 }
731
732
733 ##
734 ## END APPLICATION SPECIFIC CONFIGURATION
735 ##
736 CONFIGURE_ARGS="$@"
737 process "$@"
738 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
739 cat <<EOF >> ${BUILD_PFX}vpx_config.c
740 #include "vpx/vpx_codec.h"
741 static const char* const cfg = "$CONFIGURE_ARGS";
742 const char *vpx_codec_build_config(void) {return cfg;}
743 EOF