granicus.if.org Git - libvpx/blob - 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_tools}                 tools
  26   ${toggle_docs}                  documentation
  27   ${toggle_unit_tests}            unit tests
  28   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
  29   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
  30   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
  31   --libc=PATH                     path to alternate libc
  32   --size-limit=WxH                max size to allow in the decoder
  33   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  34   --sdk-path=PATH                 path to root of sdk (android builds only)
  35   ${toggle_codec_srcs}            in/exclude codec library source code
  36   ${toggle_debug_libs}            in/exclude debug version of libraries
  37   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  38   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
  39   ${toggle_better_hw_compatibility}
  40                                   enable encoder to produce streams with better
  41                                   hardware decoder compatibility
  42   ${toggle_vp8}                   VP8 codec support
  43   ${toggle_vp9}                   VP9 codec support
  44   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  45   ${toggle_postproc}              postprocessing
  46   ${toggle_vp9_postproc}          vp9 specific postprocessing
  47   ${toggle_multithread}           multithreaded encoding and decoding
  48   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  49   ${toggle_realtime_only}         enable this option while building for real-time encoding
  50   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  51   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  52   ${toggle_coefficient_range_checking}
  53                                   enable decoder to check if intermediate
  54                                   transform coefficients are in valid range
  55   ${toggle_runtime_cpu_detect}    runtime cpu detection
  56   ${toggle_shared}                shared library support
  57   ${toggle_static}                static library support
  58   ${toggle_small}                 favor smaller size over speed
  59   ${toggle_postproc_visualizer}   macro block / block level visualizers
  60   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  61   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  62   ${toggle_vp9_temporal_denoising}
  63                                   enable vp9 temporal denoising
  64   ${toggle_webm_io}               enable input from and output to WebM container
  65   ${toggle_libyuv}                enable libyuv
  66
  67 Codecs:
  68   Codecs can be selectively enabled or disabled individually, or by family:
  69       --disable-<codec>
  70   is equivalent to:
  71       --disable-<codec>-encoder
  72       --disable-<codec>-decoder
  73
  74   Codecs available in this distribution:
  75 EOF
  76 #restore editor state '
  77
  78     family="";
  79     last_family="";
  80     c="";
  81     str="";
  82     for c in ${CODECS}; do
  83         family=${c%_*}
  84         if [ "${family}" != "${last_family}" ]; then
  85             [ -z "${str}" ] || echo "${str}"
  86             str="$(printf '    %10s:' ${family})"
  87         fi
  88         str="${str} $(printf '%10s' ${c#*_})"
  89         last_family=${family}
  90     done
  91     echo "${str}"
  92     show_help_post
  93 }
  94
  95 ##
  96 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  97 ##
  98
  99 # all_platforms is a list of all supported target platforms. Maintain
 100 # alphabetically by architecture, generic-gnu last.
 101 all_platforms="${all_platforms} arm64-android-gcc"
 102 all_platforms="${all_platforms} arm64-darwin-gcc"
 103 all_platforms="${all_platforms} arm64-linux-gcc"
 104 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 105 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 106 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-win32-vs11"
 110 all_platforms="${all_platforms} armv7-win32-vs12"
 111 all_platforms="${all_platforms} armv7-win32-vs14"
 112 all_platforms="${all_platforms} armv7-win32-vs15"
 113 all_platforms="${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} ppc64-linux-gcc"
 118 all_platforms="${all_platforms} ppc64le-linux-gcc"
 119 all_platforms="${all_platforms} sparc-solaris-gcc"
 120 all_platforms="${all_platforms} x86-android-gcc"
 121 all_platforms="${all_platforms} x86-darwin8-gcc"
 122 all_platforms="${all_platforms} x86-darwin8-icc"
 123 all_platforms="${all_platforms} x86-darwin9-gcc"
 124 all_platforms="${all_platforms} x86-darwin9-icc"
 125 all_platforms="${all_platforms} x86-darwin10-gcc"
 126 all_platforms="${all_platforms} x86-darwin11-gcc"
 127 all_platforms="${all_platforms} x86-darwin12-gcc"
 128 all_platforms="${all_platforms} x86-darwin13-gcc"
 129 all_platforms="${all_platforms} x86-darwin14-gcc"
 130 all_platforms="${all_platforms} x86-darwin15-gcc"
 131 all_platforms="${all_platforms} x86-darwin16-gcc"
 132 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 133 all_platforms="${all_platforms} x86-linux-gcc"
 134 all_platforms="${all_platforms} x86-linux-icc"
 135 all_platforms="${all_platforms} x86-os2-gcc"
 136 all_platforms="${all_platforms} x86-solaris-gcc"
 137 all_platforms="${all_platforms} x86-win32-gcc"
 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="${all_platforms} x86-win32-vs15"
 143 all_platforms="${all_platforms} x86_64-android-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 150 all_platforms="${all_platforms} x86_64-darwin15-gcc"
 151 all_platforms="${all_platforms} x86_64-darwin16-gcc"
 152 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 153 all_platforms="${all_platforms} x86_64-linux-gcc"
 154 all_platforms="${all_platforms} x86_64-linux-icc"
 155 all_platforms="${all_platforms} x86_64-solaris-gcc"
 156 all_platforms="${all_platforms} x86_64-win64-gcc"
 157 all_platforms="${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} x86_64-win64-vs15"
 162 all_platforms="${all_platforms} generic-gnu"
 163
 164 # all_targets is a list of all targets that can be configured
 165 # note that these should be in dependency order for now.
 166 all_targets="libs examples tools docs"
 167
 168 # all targets available are enabled, by default.
 169 for t in ${all_targets}; do
 170     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 171 done
 172
 173 if ! diff --version >/dev/null; then
 174   die "diff missing: Try installing diffutils via your package manager."
 175 fi
 176
 177 if ! perl --version >/dev/null; then
 178     die "Perl is required to build"
 179 fi
 180
 181 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 182   # test to see if source_path already configured
 183   if [ -f "${source_path}/vpx_config.h" ]; then
 184     die "source directory already configured; run 'make distclean' there first"
 185   fi
 186 fi
 187
 188 # check installed doxygen version
 189 doxy_version=$(doxygen --version 2>/dev/null)
 190 doxy_major=${doxy_version%%.*}
 191 if [ ${doxy_major:-0} -ge 1 ]; then
 192     doxy_version=${doxy_version#*.}
 193     doxy_minor=${doxy_version%%.*}
 194     doxy_patch=${doxy_version##*.}
 195
 196     [ $doxy_major -gt 1 ] && enable_feature doxygen
 197     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 198     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 199 fi
 200
 201 # disable codecs when their source directory does not exist
 202 [ -d "${source_path}/vp8" ] || disable_codec vp8
 203 [ -d "${source_path}/vp9" ] || disable_codec vp9
 204
 205 # install everything except the sources, by default. sources will have
 206 # to be enabled when doing dist builds, since that's no longer a common
 207 # case.
 208 enabled doxygen && enable_feature install_docs
 209 enable_feature install_bins
 210 enable_feature install_libs
 211
 212 enable_feature static
 213 enable_feature optimizations
 214 enable_feature dependency_tracking
 215 enable_feature spatial_resampling
 216 enable_feature multithread
 217 enable_feature os_support
 218 enable_feature temporal_denoising
 219
 220 CODECS="
 221     vp8_encoder
 222     vp8_decoder
 223     vp9_encoder
 224     vp9_decoder
 225 "
 226 CODEC_FAMILIES="
 227     vp8
 228     vp9
 229 "
 230
 231 ARCH_LIST="
 232     arm
 233     mips
 234     x86
 235     x86_64
 236     ppc
 237 "
 238 ARCH_EXT_LIST_X86="
 239     mmx
 240     sse
 241     sse2
 242     sse3
 243     ssse3
 244     sse4_1
 245     avx
 246     avx2
 247     avx512
 248 "
 249
 250 ARCH_EXT_LIST_LOONGSON="
 251     mmi
 252 "
 253
 254 ARCH_EXT_LIST="
 255     neon
 256     neon_asm
 257
 258     mips32
 259     dspr2
 260     msa
 261     mips64
 262
 263     ${ARCH_EXT_LIST_X86}
 264
 265     vsx
 266
 267     ${ARCH_EXT_LIST_LOONGSON}
 268 "
 269 HAVE_LIST="
 270     ${ARCH_EXT_LIST}
 271     vpx_ports
 272     pthread_h
 273     unistd_h
 274 "
 275 EXPERIMENT_LIST="
 276     spatial_svc
 277     fp_mb_stats
 278     emulate_hardware
 279 "
 280 CONFIG_LIST="
 281     dependency_tracking
 282     external_build
 283     install_docs
 284     install_bins
 285     install_libs
 286     install_srcs
 287     debug
 288     gprof
 289     gcov
 290     rvct
 291     gcc
 292     msvs
 293     pic
 294     big_endian
 295
 296     codec_srcs
 297     debug_libs
 298
 299     dequant_tokens
 300     dc_recon
 301     runtime_cpu_detect
 302     postproc
 303     vp9_postproc
 304     multithread
 305     internal_stats
 306     ${CODECS}
 307     ${CODEC_FAMILIES}
 308     encoders
 309     decoders
 310     static_msvcrt
 311     spatial_resampling
 312     realtime_only
 313     onthefly_bitpacking
 314     error_concealment
 315     shared
 316     static
 317     small
 318     postproc_visualizer
 319     os_support
 320     unit_tests
 321     webm_io
 322     libyuv
 323     decode_perf_tests
 324     encode_perf_tests
 325     multi_res_encoding
 326     temporal_denoising
 327     vp9_temporal_denoising
 328     coefficient_range_checking
 329     vp9_highbitdepth
 330     better_hw_compatibility
 331     experimental
 332     size_limit
 333     always_adjust_bpm
 334     ${EXPERIMENT_LIST}
 335 "
 336 CMDLINE_SELECT="
 337     dependency_tracking
 338     external_build
 339     extra_warnings
 340     werror
 341     install_docs
 342     install_bins
 343     install_libs
 344     install_srcs
 345     debug
 346     gprof
 347     gcov
 348     pic
 349     optimizations
 350     ccache
 351     runtime_cpu_detect
 352     thumb
 353
 354     libs
 355     examples
 356     tools
 357     docs
 358     libc
 359     as
 360     size_limit
 361     codec_srcs
 362     debug_libs
 363
 364     dequant_tokens
 365     dc_recon
 366     postproc
 367     vp9_postproc
 368     multithread
 369     internal_stats
 370     ${CODECS}
 371     ${CODEC_FAMILIES}
 372     static_msvcrt
 373     spatial_resampling
 374     realtime_only
 375     onthefly_bitpacking
 376     error_concealment
 377     shared
 378     static
 379     small
 380     postproc_visualizer
 381     unit_tests
 382     webm_io
 383     libyuv
 384     decode_perf_tests
 385     encode_perf_tests
 386     multi_res_encoding
 387     temporal_denoising
 388     vp9_temporal_denoising
 389     coefficient_range_checking
 390     better_hw_compatibility
 391     vp9_highbitdepth
 392     experimental
 393     always_adjust_bpm
 394 "
 395
 396 process_cmdline() {
 397     for opt do
 398         optval="${opt#*=}"
 399         case "$opt" in
 400         --disable-codecs)
 401           for c in ${CODEC_FAMILIES}; do disable_codec $c; done
 402           ;;
 403         --enable-?*|--disable-?*)
 404         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 405         if is_in ${option} ${EXPERIMENT_LIST}; then
 406             if enabled experimental; then
 407                 ${action}_feature $option
 408             else
 409                 log_echo "Ignoring $opt -- not in experimental mode."
 410             fi
 411         elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
 412             ${action}_codec ${option}
 413         else
 414             process_common_cmdline $opt
 415         fi
 416         ;;
 417         *) process_common_cmdline "$opt"
 418         ;;
 419         esac
 420     done
 421 }
 422
 423 post_process_cmdline() {
 424     c=""
 425
 426     # Enable all detected codecs, if they haven't been disabled
 427     for c in ${CODECS}; do soft_enable $c; done
 428
 429     # Enable the codec family if any component of that family is enabled
 430     for c in ${CODECS}; do
 431         enabled $c && enable_feature ${c%_*}
 432     done
 433
 434     # Set the {en,de}coders variable if any algorithm in that class is enabled
 435     for c in ${CODECS}; do
 436         enabled ${c} && enable_feature ${c##*_}s
 437     done
 438 }
 439
 440
 441 process_targets() {
 442     enabled child || write_common_config_banner
 443     write_common_target_config_h ${BUILD_PFX}vpx_config.h
 444     write_common_config_targets
 445
 446     # Calculate the default distribution name, based on the enabled features
 447     cf=""
 448     DIST_DIR=vpx
 449     for cf in $CODEC_FAMILIES; do
 450         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 451             DIST_DIR="${DIST_DIR}-${cf}"
 452         elif enabled ${cf}_encoder; then
 453             DIST_DIR="${DIST_DIR}-${cf}cx"
 454         elif enabled ${cf}_decoder; then
 455             DIST_DIR="${DIST_DIR}-${cf}dx"
 456         fi
 457     done
 458     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 459     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 460     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 461     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 462     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 463     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 464     case "${tgt_os}" in
 465     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 466           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 467           ;;
 468     esac
 469     if [ -f "${source_path}/build/make/version.sh" ]; then
 470         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 471         DIST_DIR="${DIST_DIR}-${ver}"
 472         VERSION_STRING=${ver}
 473         ver=${ver%%-*}
 474         VERSION_PATCH=${ver##*.}
 475         ver=${ver%.*}
 476         VERSION_MINOR=${ver##*.}
 477         ver=${ver#v}
 478         VERSION_MAJOR=${ver%.*}
 479     fi
 480     enabled child || cat <<EOF >> config.mk
 481
 482 PREFIX=${prefix}
 483 ifeq (\$(MAKECMDGOALS),dist)
 484 DIST_DIR?=${DIST_DIR}
 485 else
 486 DIST_DIR?=\$(DESTDIR)${prefix}
 487 endif
 488 LIBSUBDIR=${libdir##${prefix}/}
 489
 490 VERSION_STRING=${VERSION_STRING}
 491
 492 VERSION_MAJOR=${VERSION_MAJOR}
 493 VERSION_MINOR=${VERSION_MINOR}
 494 VERSION_PATCH=${VERSION_PATCH}
 495
 496 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 497 EOF
 498     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 499
 500     #
 501     # Write makefiles for all enabled targets
 502     #
 503     for tgt in libs examples tools docs solution; do
 504         tgt_fn="$tgt-$toolchain.mk"
 505
 506         if enabled $tgt; then
 507             echo "Creating makefiles for ${toolchain} ${tgt}"
 508             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 509             #write_${tgt}_config
 510         fi
 511     done
 512
 513 }
 514
 515 process_detect() {
 516     if enabled shared; then
 517         # Can only build shared libs on a subset of platforms. Doing this check
 518         # here rather than at option parse time because the target auto-detect
 519         # magic happens after the command line has been parsed.
 520         case "${tgt_os}" in
 521         linux|os2|darwin*|iphonesimulator*)
 522             # Supported platforms
 523             ;;
 524         *)
 525             if enabled gnu; then
 526                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 527             else
 528                 die "--enable-shared only supported on ELF, OS/2, and Darwin for now"
 529             fi
 530             ;;
 531         esac
 532     fi
 533     if [ -z "$CC" ] || enabled external_build; then
 534         echo "Bypassing toolchain for environment detection."
 535         enable_feature external_build
 536         check_header() {
 537             log fake_check_header "$@"
 538             header=$1
 539             shift
 540             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 541             disable_feature $var
 542             # Headers common to all environments
 543             case $header in
 544                 stdio.h)
 545                     true;
 546                 ;;
 547                 *)
 548                     result=false
 549                     for d in "$@"; do
 550                         [ -f "${d##-I}/$header" ] && result=true && break
 551                     done
 552                     ${result:-true}
 553             esac && enable_feature $var
 554
 555             # Specialize windows and POSIX environments.
 556             case $toolchain in
 557                 *-win*-*)
 558                     # Don't check for any headers in Windows builds.
 559                     false
 560                 ;;
 561                 *)
 562                     case $header in
 563                         pthread.h) true;;
 564                         unistd.h) true;;
 565                         *) false;;
 566                     esac && enable_feature $var
 567             esac
 568             enabled $var
 569         }
 570         check_ld() {
 571             true
 572         }
 573     fi
 574     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 575     check_ld <<EOF || die "Toolchain is unable to link executables"
 576 int main(void) {return 0;}
 577 EOF
 578     # check system headers
 579     check_header pthread.h
 580     check_header unistd.h # for sysconf(3) and friends.
 581
 582     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 583 }
 584
 585 process_toolchain() {
 586     process_common_toolchain
 587
 588     # Enable some useful compiler flags
 589     if enabled gcc; then
 590         enabled werror && check_add_cflags -Werror
 591         check_add_cflags -Wall
 592         check_add_cflags -Wdeclaration-after-statement
 593         check_add_cflags -Wdisabled-optimization
 594         check_add_cflags -Wfloat-conversion
 595         check_add_cflags -Wparentheses-equality
 596         check_add_cflags -Wpointer-arith
 597         check_add_cflags -Wtype-limits
 598         check_add_cflags -Wcast-qual
 599         check_add_cflags -Wvla
 600         check_add_cflags -Wimplicit-function-declaration
 601         check_add_cflags -Wuninitialized
 602         check_add_cflags -Wunused
 603         # -Wextra has some tricky cases. Rather than fix them all now, get the
 604         # flag for as many files as possible and fix the remaining issues
 605         # piecemeal.
 606         # https://bugs.chromium.org/p/webm/issues/detail?id=1069
 607         check_add_cflags -Wextra
 608         # check_add_cflags also adds to cxxflags. gtest does not do well with
 609         # -Wundef so add it explicitly to CFLAGS only.
 610         check_cflags -Wundef && add_cflags_only -Wundef
 611         if enabled mips || [ -z "${INLINE}" ]; then
 612           enabled extra_warnings || check_add_cflags -Wno-unused-function
 613         fi
 614         # Avoid this warning for third_party C++ sources. Some reorganization
 615         # would be needed to apply this only to test/*.cc.
 616         check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
 617     fi
 618
 619     if enabled icc; then
 620         enabled werror && check_add_cflags -Werror
 621         check_add_cflags -Wall
 622         check_add_cflags -Wpointer-arith
 623
 624         # ICC has a number of floating point optimizations that we disable
 625         # in favor of deterministic output WRT to other compilers
 626         add_cflags -fp-model precise
 627     fi
 628
 629     # Enable extra, harmless warnings. These might provide additional insight
 630     # to what the compiler is doing and why, but in general, but they shouldn't
 631     # be treated as fatal, even if we're treating warnings as errors.
 632     GCC_EXTRA_WARNINGS="
 633         -Wdisabled-optimization
 634         -Winline
 635     "
 636     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 637     RVCT_EXTRA_WARNINGS="
 638         --remarks
 639     "
 640     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 641     if enabled extra_warnings; then
 642         for w in ${EXTRA_WARNINGS}; do
 643             check_add_cflags ${w}
 644             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 645         done
 646     fi
 647
 648     # ccache only really works on gcc toolchains
 649     enabled gcc || soft_disable ccache
 650     if enabled mips; then
 651         enable_feature dequant_tokens
 652         enable_feature dc_recon
 653     fi
 654
 655     if enabled internal_stats; then
 656         enable_feature vp9_postproc
 657     fi
 658
 659     # Enable the postbuild target if building for visual studio.
 660     case "$tgt_cc" in
 661         vs*) enable_feature msvs
 662              enable_feature solution
 663              vs_version=${tgt_cc##vs}
 664              VCPROJ_SFX=vcxproj
 665              gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 666              enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 667              all_targets="${all_targets} solution"
 668              INLINE="__inline"
 669         ;;
 670     esac
 671
 672     # Other toolchain specific defaults
 673     case $toolchain in x86*) soft_enable postproc;; esac
 674
 675     if enabled postproc_visualizer; then
 676         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 677     fi
 678
 679     # Enable unit tests by default if we have a working C++ compiler.
 680     case "$toolchain" in
 681         *-vs*)
 682             soft_enable unit_tests
 683             soft_enable webm_io
 684             soft_enable libyuv
 685         ;;
 686         *-android-*)
 687             soft_enable webm_io
 688             soft_enable libyuv
 689             # GTestLog must be modified to use Android logging utilities.
 690         ;;
 691         *-darwin-*)
 692             # iOS/ARM builds do not work with gtest. This does not match
 693             # x86 targets.
 694         ;;
 695         *-iphonesimulator-*)
 696             soft_enable webm_io
 697             soft_enable libyuv
 698         ;;
 699         *-win*)
 700             # Some mingw toolchains don't have pthread available by default.
 701             # Treat these more like visual studio where threading in gtest
 702             # would be disabled for the same reason.
 703             check_cxx "$@" <<EOF && soft_enable unit_tests
 704 int z;
 705 EOF
 706             check_cxx "$@" <<EOF && soft_enable webm_io
 707 int z;
 708 EOF
 709             check_cxx "$@" <<EOF && soft_enable libyuv
 710 int z;
 711 EOF
 712         ;;
 713         *)
 714             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 715 int z;
 716 EOF
 717             check_cxx "$@" <<EOF && soft_enable webm_io
 718 int z;
 719 EOF
 720             check_cxx "$@" <<EOF && soft_enable libyuv
 721 int z;
 722 EOF
 723         ;;
 724     esac
 725     # libwebm needs to be linked with C++ standard library
 726     enabled webm_io && LD=${CXX}
 727
 728     # append any user defined extra cflags
 729     if [ -n "${extra_cflags}" ] ; then
 730         check_add_cflags ${extra_cflags} || \
 731         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
 732     fi
 733     if [ -n "${extra_cxxflags}" ]; then
 734         check_add_cxxflags ${extra_cxxflags} || \
 735         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
 736     fi
 737 }
 738
 739
 740 ##
 741 ## END APPLICATION SPECIFIC CONFIGURATION
 742 ##
 743 CONFIGURE_ARGS="$@"
 744 process "$@"
 745 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 746 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 747 #include "vpx/vpx_codec.h"
 748 static const char* const cfg = "$CONFIGURE_ARGS";
 749 const char *vpx_codec_build_config(void) {return cfg;}
 750 EOF