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_vp10}                  VP10 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} armv6-darwin-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} arm64-darwin-gcc"
 106 all_platforms="${all_platforms} arm64-linux-gcc"
 107 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 111 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 112 all_platforms="${all_platforms} armv7-win32-vs11"
 113 all_platforms="${all_platforms} armv7-win32-vs12"
 114 all_platforms="${all_platforms} armv7-win32-vs14"
 115 all_platforms="${all_platforms} armv7s-darwin-gcc"
 116 all_platforms="${all_platforms} mips32-linux-gcc"
 117 all_platforms="${all_platforms} mips64-linux-gcc"
 118 all_platforms="${all_platforms} sparc-solaris-gcc"
 119 all_platforms="${all_platforms} x86-android-gcc"
 120 all_platforms="${all_platforms} x86-darwin8-gcc"
 121 all_platforms="${all_platforms} x86-darwin8-icc"
 122 all_platforms="${all_platforms} x86-darwin9-gcc"
 123 all_platforms="${all_platforms} x86-darwin9-icc"
 124 all_platforms="${all_platforms} x86-darwin10-gcc"
 125 all_platforms="${all_platforms} x86-darwin11-gcc"
 126 all_platforms="${all_platforms} x86-darwin12-gcc"
 127 all_platforms="${all_platforms} x86-darwin13-gcc"
 128 all_platforms="${all_platforms} x86-darwin14-gcc"
 129 all_platforms="${all_platforms} x86-darwin15-gcc"
 130 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 131 all_platforms="${all_platforms} x86-linux-gcc"
 132 all_platforms="${all_platforms} x86-linux-icc"
 133 all_platforms="${all_platforms} x86-os2-gcc"
 134 all_platforms="${all_platforms} x86-solaris-gcc"
 135 all_platforms="${all_platforms} x86-win32-gcc"
 136 all_platforms="${all_platforms} x86-win32-vs7"
 137 all_platforms="${all_platforms} x86-win32-vs8"
 138 all_platforms="${all_platforms} x86-win32-vs9"
 139 all_platforms="${all_platforms} x86-win32-vs10"
 140 all_platforms="${all_platforms} x86-win32-vs11"
 141 all_platforms="${all_platforms} x86-win32-vs12"
 142 all_platforms="${all_platforms} x86-win32-vs14"
 143 all_platforms="${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-iphonesimulator-gcc"
 152 all_platforms="${all_platforms} x86_64-linux-gcc"
 153 all_platforms="${all_platforms} x86_64-linux-icc"
 154 all_platforms="${all_platforms} x86_64-solaris-gcc"
 155 all_platforms="${all_platforms} x86_64-win64-gcc"
 156 all_platforms="${all_platforms} x86_64-win64-vs8"
 157 all_platforms="${all_platforms} x86_64-win64-vs9"
 158 all_platforms="${all_platforms} x86_64-win64-vs10"
 159 all_platforms="${all_platforms} x86_64-win64-vs11"
 160 all_platforms="${all_platforms} x86_64-win64-vs12"
 161 all_platforms="${all_platforms} x86_64-win64-vs14"
 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 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 ${t}
 171 done
 172
 173 if ! perl --version >/dev/null; then
 174     die "Perl is required to build"
 175 fi
 176
 177
 178 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 179   # test to see if source_path already configured
 180   if [ -f "${source_path}/vpx_config.h" ]; then
 181     die "source directory already configured; run 'make distclean' there first"
 182   fi
 183 fi
 184
 185 # check installed doxygen version
 186 doxy_version=$(doxygen --version 2>/dev/null)
 187 doxy_major=${doxy_version%%.*}
 188 if [ ${doxy_major:-0} -ge 1 ]; then
 189     doxy_version=${doxy_version#*.}
 190     doxy_minor=${doxy_version%%.*}
 191     doxy_patch=${doxy_version##*.}
 192
 193     [ $doxy_major -gt 1 ] && enable_feature doxygen
 194     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 195     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 196 fi
 197
 198 # disable codecs when their source directory does not exist
 199 [ -d "${source_path}/vp8" ] || disable_feature vp8
 200 [ -d "${source_path}/vp9" ] || disable_feature vp9
 201 [ -d "${source_path}/vp10" ] || disable_feature vp10
 202
 203 # disable vp10 codec by default
 204 disable_feature vp10
 205
 206 # install everything except the sources, by default. sources will have
 207 # to be enabled when doing dist builds, since that's no longer a common
 208 # case.
 209 enabled doxygen && enable_feature install_docs
 210 enable_feature install_bins
 211 enable_feature install_libs
 212
 213 enable_feature static
 214 enable_feature optimizations
 215 enable_feature dependency_tracking
 216 enable_feature spatial_resampling
 217 enable_feature multithread
 218 enable_feature os_support
 219 enable_feature temporal_denoising
 220
 221 CODECS="
 222     vp8_encoder
 223     vp8_decoder
 224     vp9_encoder
 225     vp9_decoder
 226     vp10_encoder
 227     vp10_decoder
 228 "
 229 CODEC_FAMILIES="
 230     vp8
 231     vp9
 232     vp10
 233 "
 234
 235 ARCH_LIST="
 236     arm
 237     mips
 238     x86
 239     x86_64
 240 "
 241 ARCH_EXT_LIST_X86="
 242     mmx
 243     sse
 244     sse2
 245     sse3
 246     ssse3
 247     sse4_1
 248     avx
 249     avx2
 250 "
 251 ARCH_EXT_LIST="
 252     edsp
 253     media
 254     neon
 255     neon_asm
 256
 257     mips32
 258     dspr2
 259     msa
 260     mips64
 261
 262     ${ARCH_EXT_LIST_X86}
 263 "
 264 HAVE_LIST="
 265     ${ARCH_EXT_LIST}
 266     vpx_ports
 267     pthread_h
 268     unistd_h
 269 "
 270 EXPERIMENT_LIST="
 271     spatial_svc
 272     fp_mb_stats
 273     emulate_hardware
 274     misc_fixes
 275 "
 276 CONFIG_LIST="
 277     dependency_tracking
 278     external_build
 279     install_docs
 280     install_bins
 281     install_libs
 282     install_srcs
 283     use_x86inc
 284     debug
 285     gprof
 286     gcov
 287     rvct
 288     gcc
 289     msvs
 290     pic
 291     big_endian
 292
 293     codec_srcs
 294     debug_libs
 295
 296     dequant_tokens
 297     dc_recon
 298     runtime_cpu_detect
 299     postproc
 300     vp9_postproc
 301     multithread
 302     internal_stats
 303     ${CODECS}
 304     ${CODEC_FAMILIES}
 305     encoders
 306     decoders
 307     static_msvcrt
 308     spatial_resampling
 309     realtime_only
 310     onthefly_bitpacking
 311     error_concealment
 312     shared
 313     static
 314     small
 315     postproc_visualizer
 316     os_support
 317     unit_tests
 318     webm_io
 319     libyuv
 320     decode_perf_tests
 321     encode_perf_tests
 322     multi_res_encoding
 323     temporal_denoising
 324     vp9_temporal_denoising
 325     coefficient_range_checking
 326     vp9_highbitdepth
 327     better_hw_compatibility
 328     experimental
 329     size_limit
 330     ${EXPERIMENT_LIST}
 331 "
 332 CMDLINE_SELECT="
 333     dependency_tracking
 334     external_build
 335     extra_warnings
 336     werror
 337     install_docs
 338     install_bins
 339     install_libs
 340     install_srcs
 341     debug
 342     gprof
 343     gcov
 344     pic
 345     use_x86inc
 346     optimizations
 347     ccache
 348     runtime_cpu_detect
 349     thumb
 350
 351     libs
 352     examples
 353     docs
 354     libc
 355     as
 356     size_limit
 357     codec_srcs
 358     debug_libs
 359
 360     dequant_tokens
 361     dc_recon
 362     postproc
 363     vp9_postproc
 364     multithread
 365     internal_stats
 366     ${CODECS}
 367     ${CODEC_FAMILIES}
 368     static_msvcrt
 369     spatial_resampling
 370     realtime_only
 371     onthefly_bitpacking
 372     error_concealment
 373     shared
 374     static
 375     small
 376     postproc_visualizer
 377     unit_tests
 378     webm_io
 379     libyuv
 380     decode_perf_tests
 381     encode_perf_tests
 382     multi_res_encoding
 383     temporal_denoising
 384     vp9_temporal_denoising
 385     coefficient_range_checking
 386     better_hw_compatibility
 387     vp9_highbitdepth
 388     experimental
 389 "
 390
 391 process_cmdline() {
 392     for opt do
 393         optval="${opt#*=}"
 394         case "$opt" in
 395         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 396         --enable-?*|--disable-?*)
 397         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 398         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 399             if enabled experimental; then
 400                 ${action}_feature $option
 401             else
 402                 log_echo "Ignoring $opt -- not in experimental mode."
 403             fi
 404         else
 405             process_common_cmdline $opt
 406         fi
 407         ;;
 408         *) process_common_cmdline "$opt"
 409         ;;
 410         esac
 411     done
 412 }
 413
 414 post_process_cmdline() {
 415     c=""
 416
 417     # If the codec family is disabled, disable all components of that family.
 418     # If the codec family is enabled, enable all components of that family.
 419     log_echo "Configuring selected codecs"
 420     for c in ${CODECS}; do
 421         disabled ${c%%_*} && disable_feature ${c}
 422         enabled ${c%%_*} && enable_feature ${c}
 423     done
 424
 425     # Enable all detected codecs, if they haven't been disabled
 426     for c in ${CODECS}; do soft_enable $c; done
 427
 428     # Enable the codec family if any component of that family is enabled
 429     for c in ${CODECS}; do
 430         enabled $c && enable_feature ${c%_*}
 431     done
 432
 433     # Set the {en,de}coders variable if any algorithm in that class is enabled
 434     for c in ${CODECS}; do
 435         enabled ${c} && enable_feature ${c##*_}s
 436     done
 437 }
 438
 439
 440 process_targets() {
 441     enabled child || write_common_config_banner
 442     write_common_target_config_h ${BUILD_PFX}vpx_config.h
 443     write_common_config_targets
 444
 445     # Calculate the default distribution name, based on the enabled features
 446     cf=""
 447     DIST_DIR=vpx
 448     for cf in $CODEC_FAMILIES; do
 449         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 450             DIST_DIR="${DIST_DIR}-${cf}"
 451         elif enabled ${cf}_encoder; then
 452             DIST_DIR="${DIST_DIR}-${cf}cx"
 453         elif enabled ${cf}_decoder; then
 454             DIST_DIR="${DIST_DIR}-${cf}dx"
 455         fi
 456     done
 457     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 458     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 459     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 460     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 461     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 462     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 463     case "${tgt_os}" in
 464     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 465           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 466           ;;
 467     esac
 468     if [ -f "${source_path}/build/make/version.sh" ]; then
 469         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 470         DIST_DIR="${DIST_DIR}-${ver}"
 471         VERSION_STRING=${ver}
 472         ver=${ver%%-*}
 473         VERSION_PATCH=${ver##*.}
 474         ver=${ver%.*}
 475         VERSION_MINOR=${ver##*.}
 476         ver=${ver#v}
 477         VERSION_MAJOR=${ver%.*}
 478     fi
 479     enabled child || cat <<EOF >> config.mk
 480
 481 PREFIX=${prefix}
 482 ifeq (\$(MAKECMDGOALS),dist)
 483 DIST_DIR?=${DIST_DIR}
 484 else
 485 DIST_DIR?=\$(DESTDIR)${prefix}
 486 endif
 487 LIBSUBDIR=${libdir##${prefix}/}
 488
 489 VERSION_STRING=${VERSION_STRING}
 490
 491 VERSION_MAJOR=${VERSION_MAJOR}
 492 VERSION_MINOR=${VERSION_MINOR}
 493 VERSION_PATCH=${VERSION_PATCH}
 494
 495 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 496 EOF
 497     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 498
 499     #
 500     # Write makefiles for all enabled targets
 501     #
 502     for tgt in libs examples docs solution; do
 503         tgt_fn="$tgt-$toolchain.mk"
 504
 505         if enabled $tgt; then
 506             echo "Creating makefiles for ${toolchain} ${tgt}"
 507             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 508             #write_${tgt}_config
 509         fi
 510     done
 511
 512 }
 513
 514 process_detect() {
 515     if enabled shared; then
 516         # Can only build shared libs on a subset of platforms. Doing this check
 517         # here rather than at option parse time because the target auto-detect
 518         # magic happens after the command line has been parsed.
 519         if ! enabled linux && ! enabled os2; then
 520             if enabled gnu; then
 521                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 522             else
 523                 die "--enable-shared only supported on ELF and OS/2 for now"
 524             fi
 525         fi
 526     fi
 527     if [ -z "$CC" ] || enabled external_build; then
 528         echo "Bypassing toolchain for environment detection."
 529         enable_feature external_build
 530         check_header() {
 531             log fake_check_header "$@"
 532             header=$1
 533             shift
 534             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 535             disable_feature $var
 536             # Headers common to all environments
 537             case $header in
 538                 stdio.h)
 539                     true;
 540                 ;;
 541                 *)
 542                     result=false
 543                     for d in "$@"; do
 544                         [ -f "${d##-I}/$header" ] && result=true && break
 545                     done
 546                     ${result:-true}
 547             esac && enable_feature $var
 548
 549             # Specialize windows and POSIX environments.
 550             case $toolchain in
 551                 *-win*-*)
 552                     # Don't check for any headers in Windows builds.
 553                     false
 554                 ;;
 555                 *)
 556                     case $header in
 557                         pthread.h) true;;
 558                         unistd.h) true;;
 559                         *) false;;
 560                     esac && enable_feature $var
 561             esac
 562             enabled $var
 563         }
 564         check_ld() {
 565             true
 566         }
 567     fi
 568     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 569     check_ld <<EOF || die "Toolchain is unable to link executables"
 570 int main(void) {return 0;}
 571 EOF
 572     # check system headers
 573     check_header pthread.h
 574     check_header unistd.h # for sysconf(3) and friends.
 575
 576     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 577 }
 578
 579 process_toolchain() {
 580     process_common_toolchain
 581
 582     # Enable some useful compiler flags
 583     if enabled gcc; then
 584         enabled werror && check_add_cflags -Werror
 585         check_add_cflags -Wall
 586         check_add_cflags -Wdeclaration-after-statement
 587         check_add_cflags -Wdisabled-optimization
 588         check_add_cflags -Wpointer-arith
 589         check_add_cflags -Wtype-limits
 590         check_add_cflags -Wcast-qual
 591         check_add_cflags -Wvla
 592         check_add_cflags -Wimplicit-function-declaration
 593         check_add_cflags -Wuninitialized
 594         check_add_cflags -Wunused-variable
 595         case ${CC} in
 596           *clang*)
 597               # libvpx and/or clang have issues with aliasing:
 598               # https://code.google.com/p/webm/issues/detail?id=603
 599               # work around them until they are fixed
 600               check_add_cflags -fno-strict-aliasing
 601           ;;
 602           *) check_add_cflags -Wunused-but-set-variable ;;
 603         esac
 604         if enabled mips || [ -z "${INLINE}" ]; then
 605           enabled extra_warnings || check_add_cflags -Wno-unused-function
 606         else
 607           check_add_cflags -Wunused-function
 608         fi
 609     fi
 610
 611     if enabled icc; then
 612         enabled werror && check_add_cflags -Werror
 613         check_add_cflags -Wall
 614         check_add_cflags -Wpointer-arith
 615
 616         # ICC has a number of floating point optimizations that we disable
 617         # in favor of deterministic output WRT to other compilers
 618         add_cflags -fp-model precise
 619     fi
 620
 621     # Enable extra, harmless warnings. These might provide additional insight
 622     # to what the compiler is doing and why, but in general, but they shouldn't
 623     # be treated as fatal, even if we're treating warnings as errors.
 624     GCC_EXTRA_WARNINGS="
 625         -Wdisabled-optimization
 626         -Winline
 627     "
 628     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 629     RVCT_EXTRA_WARNINGS="
 630         --remarks
 631     "
 632     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 633     if enabled extra_warnings; then
 634         for w in ${EXTRA_WARNINGS}; do
 635             check_add_cflags ${w}
 636             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 637         done
 638     fi
 639
 640     # ccache only really works on gcc toolchains
 641     enabled gcc || soft_disable ccache
 642     if enabled mips; then
 643         enable_feature dequant_tokens
 644         enable_feature dc_recon
 645     fi
 646
 647     if enabled internal_stats; then
 648         enable_feature vp9_postproc
 649     fi
 650
 651     # Enable the postbuild target if building for visual studio.
 652     case "$tgt_cc" in
 653         vs*) enable_feature msvs
 654              enable_feature solution
 655              vs_version=${tgt_cc##vs}
 656              case $vs_version in
 657              [789])
 658                  VCPROJ_SFX=vcproj
 659                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 660                  ;;
 661              10|11|12|14)
 662                  VCPROJ_SFX=vcxproj
 663                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 664                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 665                  ;;
 666              esac
 667              all_targets="${all_targets} solution"
 668              INLINE="__forceinline"
 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