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_fast_unaligned}        don't use unaligned accesses, even when
  35                                   supported by hardware [auto]
  36   ${toggle_codec_srcs}            in/exclude codec library source code
  37   ${toggle_debug_libs}            in/exclude debug version of libraries
  38   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  39   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
  40   ${toggle_vp8}                   VP8 codec support
  41   ${toggle_vp9}                   VP9 codec support
  42   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  43   ${toggle_mem_tracker}           track memory usage
  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_highbitdepth}      enable 10/12 bit support in VP9
  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="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 111 all_platforms="${all_platforms} armv7-win32-vs11"
 112 all_platforms="${all_platforms} armv7-win32-vs12"
 113 all_platforms="${all_platforms} armv7s-darwin-gcc"
 114 all_platforms="${all_platforms} mips32-linux-gcc"
 115 all_platforms="${all_platforms} mips64-linux-gcc"
 116 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 117 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 118 all_platforms="${all_platforms} ppc32-linux-gcc"
 119 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 120 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 121 all_platforms="${all_platforms} ppc64-linux-gcc"
 122 all_platforms="${all_platforms} sparc-solaris-gcc"
 123 all_platforms="${all_platforms} x86-android-gcc"
 124 all_platforms="${all_platforms} x86-darwin8-gcc"
 125 all_platforms="${all_platforms} x86-darwin8-icc"
 126 all_platforms="${all_platforms} x86-darwin9-gcc"
 127 all_platforms="${all_platforms} x86-darwin9-icc"
 128 all_platforms="${all_platforms} x86-darwin10-gcc"
 129 all_platforms="${all_platforms} x86-darwin11-gcc"
 130 all_platforms="${all_platforms} x86-darwin12-gcc"
 131 all_platforms="${all_platforms} x86-darwin13-gcc"
 132 all_platforms="${all_platforms} x86-darwin14-gcc"
 133 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 134 all_platforms="${all_platforms} x86-linux-gcc"
 135 all_platforms="${all_platforms} x86-linux-icc"
 136 all_platforms="${all_platforms} x86-os2-gcc"
 137 all_platforms="${all_platforms} x86-solaris-gcc"
 138 all_platforms="${all_platforms} x86-win32-gcc"
 139 all_platforms="${all_platforms} x86-win32-vs7"
 140 all_platforms="${all_platforms} x86-win32-vs8"
 141 all_platforms="${all_platforms} x86-win32-vs9"
 142 all_platforms="${all_platforms} x86-win32-vs10"
 143 all_platforms="${all_platforms} x86-win32-vs11"
 144 all_platforms="${all_platforms} x86-win32-vs12"
 145 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 148 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 149 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 150 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 151 all_platforms="${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} universal-darwin8-gcc"
 162 all_platforms="${all_platforms} universal-darwin9-gcc"
 163 all_platforms="${all_platforms} universal-darwin10-gcc"
 164 all_platforms="${all_platforms} universal-darwin11-gcc"
 165 all_platforms="${all_platforms} universal-darwin12-gcc"
 166 all_platforms="${all_platforms} universal-darwin13-gcc"
 167 all_platforms="${all_platforms} universal-darwin14-gcc"
 168 all_platforms="${all_platforms} generic-gnu"
 169
 170 # all_targets is a list of all targets that can be configured
 171 # note that these should be in dependency order for now.
 172 all_targets="libs examples docs"
 173
 174 # all targets available are enabled, by default.
 175 for t in ${all_targets}; do
 176     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 177 done
 178
 179 if ! perl --version >/dev/null; then
 180     die "Perl is required to build"
 181 fi
 182
 183
 184 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 185   # test to see if source_path already configured
 186   if [ -f "${source_path}/vpx_config.h" ]; then
 187     die "source directory already configured; run 'make distclean' there first"
 188   fi
 189 fi
 190
 191 # check installed doxygen version
 192 doxy_version=$(doxygen --version 2>/dev/null)
 193 doxy_major=${doxy_version%%.*}
 194 if [ ${doxy_major:-0} -ge 1 ]; then
 195     doxy_version=${doxy_version#*.}
 196     doxy_minor=${doxy_version%%.*}
 197     doxy_patch=${doxy_version##*.}
 198
 199     [ $doxy_major -gt 1 ] && enable_feature doxygen
 200     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 201     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 202 fi
 203
 204 # install everything except the sources, by default. sources will have
 205 # to be enabled when doing dist builds, since that's no longer a common
 206 # case.
 207 enabled doxygen && enable_feature install_docs
 208 enable_feature install_bins
 209 enable_feature install_libs
 210
 211 enable_feature static
 212 enable_feature optimizations
 213 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 214 enable_feature spatial_resampling
 215 enable_feature multithread
 216 enable_feature os_support
 217 enable_feature temporal_denoising
 218
 219 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 220 for d in vp8 vp9; do
 221     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 222 done
 223
 224 if ! enabled alt_tree_layout; then
 225 # development environment
 226 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 227 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 228 else
 229 # customer environment
 230 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 231 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 232 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 233 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 234 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 235 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 236 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 237 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 238
 239 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 240 fi
 241
 242 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 243 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 244
 245 ARCH_LIST="
 246     arm
 247     mips
 248     x86
 249     x86_64
 250     ppc32
 251     ppc64
 252 "
 253 ARCH_EXT_LIST="
 254     edsp
 255     media
 256     neon
 257     neon_asm
 258
 259     mips32
 260     dspr2
 261
 262     mips64
 263
 264     mmx
 265     sse
 266     sse2
 267     sse3
 268     ssse3
 269     sse4_1
 270     avx
 271     avx2
 272
 273     altivec
 274 "
 275 HAVE_LIST="
 276     ${ARCH_EXT_LIST}
 277     vpx_ports
 278     stdint_h
 279     alt_tree_layout
 280     pthread_h
 281     sys_mman_h
 282     unistd_h
 283 "
 284 EXPERIMENT_LIST="
 285     spatial_svc
 286     fp_mb_stats
 287     emulate_hardware
 288 "
 289 CONFIG_LIST="
 290     external_build
 291     install_docs
 292     install_bins
 293     install_libs
 294     install_srcs
 295     use_x86inc
 296     debug
 297     gprof
 298     gcov
 299     rvct
 300     gcc
 301     msvs
 302     pic
 303     big_endian
 304
 305     codec_srcs
 306     debug_libs
 307     fast_unaligned
 308     mem_manager
 309     mem_tracker
 310     mem_checks
 311
 312     dequant_tokens
 313     dc_recon
 314     runtime_cpu_detect
 315     postproc
 316     vp9_postproc
 317     multithread
 318     internal_stats
 319     ${CODECS}
 320     ${CODEC_FAMILIES}
 321     encoders
 322     decoders
 323     static_msvcrt
 324     spatial_resampling
 325     realtime_only
 326     onthefly_bitpacking
 327     error_concealment
 328     shared
 329     static
 330     small
 331     postproc_visualizer
 332     os_support
 333     unit_tests
 334     webm_io
 335     libyuv
 336     decode_perf_tests
 337     encode_perf_tests
 338     multi_res_encoding
 339     temporal_denoising
 340     vp9_temporal_denoising
 341     coefficient_range_checking
 342     vp9_highbitdepth
 343     experimental
 344     size_limit
 345     ${EXPERIMENT_LIST}
 346 "
 347 CMDLINE_SELECT="
 348     external_build
 349     extra_warnings
 350     werror
 351     install_docs
 352     install_bins
 353     install_libs
 354     install_srcs
 355     debug
 356     gprof
 357     gcov
 358     pic
 359     use_x86inc
 360     optimizations
 361     ccache
 362     runtime_cpu_detect
 363     thumb
 364
 365     libs
 366     examples
 367     docs
 368     libc
 369     as
 370     size_limit
 371     fast_unaligned
 372     codec_srcs
 373     debug_libs
 374
 375     dequant_tokens
 376     dc_recon
 377     postproc
 378     vp9_postproc
 379     multithread
 380     internal_stats
 381     ${CODECS}
 382     ${CODEC_FAMILIES}
 383     static_msvcrt
 384     mem_tracker
 385     spatial_resampling
 386     realtime_only
 387     onthefly_bitpacking
 388     error_concealment
 389     shared
 390     static
 391     small
 392     postproc_visualizer
 393     unit_tests
 394     webm_io
 395     libyuv
 396     decode_perf_tests
 397     encode_perf_tests
 398     multi_res_encoding
 399     temporal_denoising
 400     vp9_temporal_denoising
 401     coefficient_range_checking
 402     vp9_highbitdepth
 403     experimental
 404 "
 405
 406 process_cmdline() {
 407     for opt do
 408         optval="${opt#*=}"
 409         case "$opt" in
 410         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 411         --enable-?*|--disable-?*)
 412         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 413         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 414             if enabled experimental; then
 415                 ${action}_feature $option
 416             else
 417                 log_echo "Ignoring $opt -- not in experimental mode."
 418             fi
 419         else
 420             process_common_cmdline $opt
 421         fi
 422         ;;
 423         *) process_common_cmdline "$opt"
 424         ;;
 425         esac
 426     done
 427 }
 428
 429 post_process_cmdline() {
 430     c=""
 431
 432     # If the codec family is disabled, disable all components of that family.
 433     # If the codec family is enabled, enable all components of that family.
 434     log_echo "Configuring selected codecs"
 435     for c in ${CODECS}; do
 436         disabled ${c%%_*} && disable_feature ${c}
 437         enabled ${c%%_*} && enable_feature ${c}
 438     done
 439
 440     # Enable all detected codecs, if they haven't been disabled
 441     for c in ${CODECS}; do soft_enable $c; done
 442
 443     # Enable the codec family if any component of that family is enabled
 444     for c in ${CODECS}; do
 445         enabled $c && enable_feature ${c%_*}
 446     done
 447
 448     # Set the {en,de}coders variable if any algorithm in that class is enabled
 449     for c in ${CODECS}; do
 450         enabled ${c} && enable_feature ${c##*_}s
 451     done
 452 }
 453
 454
 455 process_targets() {
 456     enabled child || write_common_config_banner
 457     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 458
 459     # For fat binaries, call configure recursively to configure for each
 460     # binary architecture to be included.
 461     if enabled universal; then
 462         # Call configure (ourselves) for each subarchitecture
 463         for arch in $fat_bin_archs; do
 464             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 465         done
 466     fi
 467
 468     # The write_common_config (config.mk) logic is deferred until after the
 469     # recursive calls to configure complete, because we want our universal
 470     # targets to be executed last.
 471     write_common_config_targets
 472     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 473
 474     # Calculate the default distribution name, based on the enabled features
 475     cf=""
 476     DIST_DIR=vpx
 477     for cf in $CODEC_FAMILIES; do
 478         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 479             DIST_DIR="${DIST_DIR}-${cf}"
 480         elif enabled ${cf}_encoder; then
 481             DIST_DIR="${DIST_DIR}-${cf}cx"
 482         elif enabled ${cf}_decoder; then
 483             DIST_DIR="${DIST_DIR}-${cf}dx"
 484         fi
 485     done
 486     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 487     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 488     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 489     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 490     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 491     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 492     case "${tgt_os}" in
 493     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 494           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 495           ;;
 496     esac
 497     if [ -f "${source_path}/build/make/version.sh" ]; then
 498         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 499         DIST_DIR="${DIST_DIR}-${ver}"
 500         VERSION_STRING=${ver}
 501         ver=${ver%%-*}
 502         VERSION_PATCH=${ver##*.}
 503         ver=${ver%.*}
 504         VERSION_MINOR=${ver##*.}
 505         ver=${ver#v}
 506         VERSION_MAJOR=${ver%.*}
 507     fi
 508     enabled child || cat <<EOF >> config.mk
 509
 510 PREFIX=${prefix}
 511 ifeq (\$(MAKECMDGOALS),dist)
 512 DIST_DIR?=${DIST_DIR}
 513 else
 514 DIST_DIR?=\$(DESTDIR)${prefix}
 515 endif
 516 LIBSUBDIR=${libdir##${prefix}/}
 517
 518 VERSION_STRING=${VERSION_STRING}
 519
 520 VERSION_MAJOR=${VERSION_MAJOR}
 521 VERSION_MINOR=${VERSION_MINOR}
 522 VERSION_PATCH=${VERSION_PATCH}
 523
 524 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 525 EOF
 526     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 527
 528     #
 529     # Write makefiles for all enabled targets
 530     #
 531     for tgt in libs examples docs solution; do
 532         tgt_fn="$tgt-$toolchain.mk"
 533
 534         if enabled $tgt; then
 535             echo "Creating makefiles for ${toolchain} ${tgt}"
 536             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 537             #write_${tgt}_config
 538         fi
 539     done
 540
 541 }
 542
 543 process_detect() {
 544     if enabled shared; then
 545         # Can only build shared libs on a subset of platforms. Doing this check
 546         # here rather than at option parse time because the target auto-detect
 547         # magic happens after the command line has been parsed.
 548         if ! enabled linux; then
 549             if enabled gnu; then
 550                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 551             else
 552                 die "--enable-shared only supported on ELF for now"
 553             fi
 554         fi
 555     fi
 556     if [ -z "$CC" ] || enabled external_build; then
 557         echo "Bypassing toolchain for environment detection."
 558         enable_feature external_build
 559         check_header() {
 560             log fake_check_header "$@"
 561             header=$1
 562             shift
 563             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 564             disable_feature $var
 565             # Headers common to all environments
 566             case $header in
 567                 stdio.h)
 568                     true;
 569                 ;;
 570                 *)
 571                     result=false
 572                     for d in "$@"; do
 573                         [ -f "${d##-I}/$header" ] && result=true && break
 574                     done
 575                     ${result:-true}
 576             esac && enable_feature $var
 577
 578             # Specialize windows and POSIX environments.
 579             case $toolchain in
 580                 *-win*-*)
 581                     case $header-$toolchain in
 582                         stdint*-gcc) true;;
 583                         *) false;;
 584                     esac && enable_feature $var
 585                     ;;
 586                 *)
 587                     case $header in
 588                         stdint.h) true;;
 589                         pthread.h) true;;
 590                         sys/mman.h) true;;
 591                         unistd.h) true;;
 592                         *) false;;
 593                     esac && enable_feature $var
 594             esac
 595             enabled $var
 596         }
 597         check_ld() {
 598             true
 599         }
 600     fi
 601     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 602     check_ld <<EOF || die "Toolchain is unable to link executables"
 603 int main(void) {return 0;}
 604 EOF
 605     # check system headers
 606     check_header stdint.h
 607     check_header pthread.h
 608     check_header sys/mman.h
 609     check_header unistd.h # for sysconf(3) and friends.
 610
 611     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 612 }
 613
 614 process_toolchain() {
 615     process_common_toolchain
 616
 617     # Handle universal binaries for this architecture
 618     case $toolchain in
 619         universal-darwin*)
 620             darwin_ver=${tgt_os##darwin}
 621
 622             # Snow Leopard (10.6/darwin10) dropped support for PPC
 623             # Include PPC support for all prior versions
 624             if [ $darwin_ver -lt 10 ]; then
 625                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 626             fi
 627
 628             # Tiger (10.4/darwin8) brought support for x86
 629             if [ $darwin_ver -ge 8 ]; then
 630                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 631             fi
 632
 633             # Leopard (10.5/darwin9) brought 64 bit support
 634             if [ $darwin_ver -ge 9 ]; then
 635                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 636             fi
 637             ;;
 638     esac
 639
 640
 641     # Enable some useful compiler flags
 642     if enabled gcc; then
 643         enabled werror && check_add_cflags -Werror
 644         check_add_cflags -Wall
 645         check_add_cflags -Wdeclaration-after-statement
 646         check_add_cflags -Wdisabled-optimization
 647         check_add_cflags -Wpointer-arith
 648         check_add_cflags -Wtype-limits
 649         check_add_cflags -Wcast-qual
 650         check_add_cflags -Wvla
 651         check_add_cflags -Wimplicit-function-declaration
 652         check_add_cflags -Wuninitialized
 653         check_add_cflags -Wunused-variable
 654         case ${CC} in
 655           *clang*)
 656               # libvpx and/or clang have issues with aliasing:
 657               # https://code.google.com/p/webm/issues/detail?id=603
 658               # work around them until they are fixed
 659               check_add_cflags -fno-strict-aliasing
 660           ;;
 661           *) check_add_cflags -Wunused-but-set-variable ;;
 662         esac
 663         enabled extra_warnings || check_add_cflags -Wno-unused-function
 664     fi
 665
 666     if enabled icc; then
 667         enabled werror && check_add_cflags -Werror
 668         check_add_cflags -Wall
 669         check_add_cflags -Wpointer-arith
 670
 671         # ICC has a number of floating point optimizations that we disable
 672         # in favor of deterministic output WRT to other compilers
 673         add_cflags -fp-model precise
 674     fi
 675
 676     # Enable extra, harmless warnings. These might provide additional insight
 677     # to what the compiler is doing and why, but in general, but they shouldn't
 678     # be treated as fatal, even if we're treating warnings as errors.
 679     GCC_EXTRA_WARNINGS="
 680         -Wdisabled-optimization
 681         -Winline
 682     "
 683     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 684     RVCT_EXTRA_WARNINGS="
 685         --remarks
 686     "
 687     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 688     if enabled extra_warnings; then
 689         for w in ${EXTRA_WARNINGS}; do
 690             check_add_cflags ${w}
 691             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 692         done
 693     fi
 694
 695     # ccache only really works on gcc toolchains
 696     enabled gcc || soft_disable ccache
 697     if enabled mips; then
 698         enable_feature dequant_tokens
 699         enable_feature dc_recon
 700     fi
 701
 702     if enabled internal_stats; then
 703         enable_feature vp9_postproc
 704     fi
 705
 706     # Enable the postbuild target if building for visual studio.
 707     case "$tgt_cc" in
 708         vs*) enable_feature msvs
 709              enable_feature solution
 710              vs_version=${tgt_cc##vs}
 711              case $vs_version in
 712              [789])
 713                  VCPROJ_SFX=vcproj
 714                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 715                  ;;
 716              10|11|12)
 717                  VCPROJ_SFX=vcxproj
 718                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 719                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 720                  ;;
 721              esac
 722              all_targets="${all_targets} solution"
 723              INLINE="__forceinline"
 724         ;;
 725     esac
 726
 727     # Other toolchain specific defaults
 728     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 729
 730     if enabled postproc_visualizer; then
 731         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 732     fi
 733
 734     # Enable unit tests by default if we have a working C++ compiler.
 735     case "$toolchain" in
 736         *-vs*)
 737             soft_enable unit_tests
 738             soft_enable webm_io
 739             soft_enable libyuv
 740         ;;
 741         *-android-*)
 742             soft_enable webm_io
 743             soft_enable libyuv
 744             # GTestLog must be modified to use Android logging utilities.
 745         ;;
 746         *-darwin-*)
 747             # iOS/ARM builds do not work with gtest. This does not match
 748             # x86 targets.
 749         ;;
 750         *-iphonesimulator-*)
 751             soft_enable webm_io
 752             soft_enable libyuv
 753         ;;
 754         *-win*)
 755             # Some mingw toolchains don't have pthread available by default.
 756             # Treat these more like visual studio where threading in gtest
 757             # would be disabled for the same reason.
 758             check_cxx "$@" <<EOF && soft_enable unit_tests
 759 int z;
 760 EOF
 761             check_cxx "$@" <<EOF && soft_enable webm_io
 762 int z;
 763 EOF
 764             check_cxx "$@" <<EOF && soft_enable libyuv
 765 int z;
 766 EOF
 767         ;;
 768         *)
 769             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 770 int z;
 771 EOF
 772             check_cxx "$@" <<EOF && soft_enable webm_io
 773 int z;
 774 EOF
 775             check_cxx "$@" <<EOF && soft_enable libyuv
 776 int z;
 777 EOF
 778         ;;
 779     esac
 780     # libwebm needs to be linked with C++ standard library
 781     enabled webm_io && LD=${CXX}
 782 }
 783
 784
 785 ##
 786 ## END APPLICATION SPECIFIC CONFIGURATION
 787 ##
 788 CONFIGURE_ARGS="$@"
 789 process "$@"
 790 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 791 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 792 static const char* const cfg = "$CONFIGURE_ARGS";
 793 const char *vpx_codec_build_config(void) {return cfg;}
 794 EOF