configure

   1 #!/bin/bash
   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}                  don't build libraries
  24   ${toggle_examples}              don't build examples
  25   ${toggle_unit_tests}            build unit tests
  26   --libc=PATH                     path to alternate libc
  27   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  28   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  29                                   supported by hardware [auto]
  30   ${toggle_codec_srcs}            in/exclude codec library source code
  31   ${toggle_debug_libs}            in/exclude debug version of libraries
  32   ${toggle_md5}                   support for output of checksum data
  33   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  34   ${toggle_vp8}                   VP8 codec support
  35   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  36   ${toggle_mem_tracker}           track memory usage
  37   ${toggle_postproc}              postprocessing
  38   ${toggle_multithread}           multithreaded encoding and decoding.
  39   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  40   ${toggle_realtime_only}         enable this option while building for real-time encoding
  41   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  42   ${toggle_runtime_cpu_detect}    runtime cpu detection
  43   ${toggle_shared}                shared library support
  44   ${toggle_static}                static library support
  45   ${toggle_small}                 favor smaller size over speed
  46   ${toggle_postproc_visualizer}   macro block / block level visualizers
  47
  48 Codecs:
  49   Codecs can be selectively enabled or disabled individually, or by family:
  50       --disable-<codec>
  51   is equivalent to:
  52       --disable-<codec>-encoder
  53       --disable-<codec>-decoder
  54
  55   Codecs available in this distribution:
  56 EOF
  57 #restore editor state '
  58
  59     local family;
  60     local last_family;
  61     local c;
  62     local str;
  63     for c in ${CODECS}; do
  64         family=${c%_*}
  65         if [ "${family}" != "${last_family}" ]; then
  66             [ -z "${str}" ] || echo "${str}"
  67             str="$(printf '    %10s:' ${family})"
  68         fi
  69         str="${str} $(printf '%10s' ${c#*_})"
  70         last_family=${family}
  71     done
  72     echo "${str}"
  73     show_help_post
  74 }
  75
  76 ##
  77 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  78 ##
  79
  80 # all_platforms is a list of all supported target platforms. Maintain
  81 # alphabetically by architecture, generic-gnu last.
  82 all_platforms="${all_platforms} armv5te-linux-rvct"
  83 all_platforms="${all_platforms} armv5te-linux-gcc"
  84 all_platforms="${all_platforms} armv5te-none-rvct"
  85 all_platforms="${all_platforms} armv5te-symbian-gcc"
  86 all_platforms="${all_platforms} armv6-darwin-gcc"
  87 all_platforms="${all_platforms} armv6-linux-rvct"
  88 all_platforms="${all_platforms} armv6-linux-gcc"
  89 all_platforms="${all_platforms} armv6-none-rvct"
  90 all_platforms="${all_platforms} armv6-symbian-gcc"
  91 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  92 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  93 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  94 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  95 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  96 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  99 all_platforms="${all_platforms} mips32-linux-gcc"
 100 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 101 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 102 all_platforms="${all_platforms} ppc32-linux-gcc"
 103 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 104 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 105 all_platforms="${all_platforms} ppc64-linux-gcc"
 106 all_platforms="${all_platforms} sparc-solaris-gcc"
 107 all_platforms="${all_platforms} x86-darwin8-gcc"
 108 all_platforms="${all_platforms} x86-darwin8-icc"
 109 all_platforms="${all_platforms} x86-darwin9-gcc"
 110 all_platforms="${all_platforms} x86-darwin9-icc"
 111 all_platforms="${all_platforms} x86-darwin10-gcc"
 112 all_platforms="${all_platforms} x86-linux-gcc"
 113 all_platforms="${all_platforms} x86-linux-icc"
 114 all_platforms="${all_platforms} x86-solaris-gcc"
 115 all_platforms="${all_platforms} x86-win32-gcc"
 116 all_platforms="${all_platforms} x86-win32-vs7"
 117 all_platforms="${all_platforms} x86-win32-vs8"
 118 all_platforms="${all_platforms} x86-win32-vs9"
 119 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 120 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 121 all_platforms="${all_platforms} x86_64-linux-gcc"
 122 all_platforms="${all_platforms} x86_64-linux-icc"
 123 all_platforms="${all_platforms} x86_64-solaris-gcc"
 124 all_platforms="${all_platforms} x86_64-win64-gcc"
 125 all_platforms="${all_platforms} x86_64-win64-vs8"
 126 all_platforms="${all_platforms} x86_64-win64-vs9"
 127 all_platforms="${all_platforms} universal-darwin8-gcc"
 128 all_platforms="${all_platforms} universal-darwin9-gcc"
 129 all_platforms="${all_platforms} generic-gnu"
 130
 131 # all_targets is a list of all targets that can be configured
 132 # note that these should be in dependency order for now.
 133 all_targets="libs examples docs"
 134
 135 # all targets available are enabled, by default.
 136 for t in ${all_targets}; do
 137     [ -f ${source_path}/${t}.mk ] && enable ${t}
 138 done
 139
 140 # check installed doxygen version
 141 doxy_version=$(doxygen --version 2>/dev/null)
 142 doxy_major=${doxy_version%%.*}
 143 if [ ${doxy_major:-0} -ge 1 ]; then
 144     doxy_version=${doxy_version#*.}
 145     doxy_minor=${doxy_version%%.*}
 146     doxy_patch=${doxy_version##*.}
 147
 148     [ $doxy_major -gt 1 ] && enable doxygen
 149     [ $doxy_minor -gt 5 ] && enable doxygen
 150     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 151 fi
 152
 153 # install everything except the sources, by default. sources will have
 154 # to be enabled when doing dist builds, since that's no longer a common
 155 # case.
 156 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 157 enable install_bins
 158 enable install_libs
 159
 160 enable static
 161 enable optimizations
 162 enable fast_unaligned #allow unaligned accesses, if supported by hw
 163 enable md5
 164 enable spatial_resampling
 165 enable multithread
 166 enable os_support
 167
 168 [ -d ${source_path}/../include ] && enable alt_tree_layout
 169 for d in vp8; do
 170     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 171 done
 172
 173 if ! enabled alt_tree_layout; then
 174 # development environment
 175 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 176 else
 177 # customer environment
 178 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 179 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 180
 181 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 182 fi
 183
 184 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 185 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 186
 187 ARCH_LIST="
 188     arm
 189     mips
 190     x86
 191     x86_64
 192     ppc32
 193     ppc64
 194 "
 195 ARCH_EXT_LIST="
 196     armv5te
 197     armv6
 198     armv7
 199     iwmmxt
 200     iwmmxt2
 201
 202     mips32
 203
 204     mmx
 205     sse
 206     sse2
 207     sse3
 208     ssse3
 209     sse4_1
 210
 211     altivec
 212 "
 213 HAVE_LIST="
 214     ${ARCH_EXT_LIST}
 215     vpx_ports
 216     stdint_h
 217     alt_tree_layout
 218     pthread_h
 219     sys_mman_h
 220     unistd_h
 221 "
 222 CONFIG_LIST="
 223     external_build
 224     install_docs
 225     install_bins
 226     install_libs
 227     install_srcs
 228     debug
 229     gprof
 230     gcov
 231     rvct
 232     gcc
 233     msvs
 234     pic
 235     big_endian
 236
 237     codec_srcs
 238     debug_libs
 239     fast_unaligned
 240     mem_manager
 241     mem_tracker
 242     mem_checks
 243     md5
 244
 245     dequant_tokens
 246     dc_recon
 247     runtime_cpu_detect
 248     postproc
 249     multithread
 250     internal_stats
 251     ${CODECS}
 252     ${CODEC_FAMILIES}
 253     encoders
 254     decoders
 255     static_msvcrt
 256     spatial_resampling
 257     realtime_only
 258     error_concealment
 259     shared
 260     static
 261     small
 262     postproc_visualizer
 263     os_support
 264     unit_tests
 265 "
 266 CMDLINE_SELECT="
 267     extra_warnings
 268     werror
 269     install_docs
 270     install_bins
 271     install_libs
 272     install_srcs
 273     debug
 274     gprof
 275     gcov
 276     pic
 277     optimizations
 278     ccache
 279     runtime_cpu_detect
 280
 281     libs
 282     examples
 283     libc
 284     as
 285     fast_unaligned
 286     codec_srcs
 287     debug_libs
 288     md5
 289
 290     dequant_tokens
 291     dc_recon
 292     postproc
 293     multithread
 294     internal_stats
 295     ${CODECS}
 296     ${CODEC_FAMILIES}
 297     static_msvcrt
 298     mem_tracker
 299     spatial_resampling
 300     realtime_only
 301     error_concealment
 302     shared
 303     static
 304     small
 305     postproc_visualizer
 306     unit_tests
 307 "
 308
 309 process_cmdline() {
 310     for opt do
 311         optval="${opt#*=}"
 312         case "$opt" in
 313         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 314         *) process_common_cmdline "$opt"
 315         ;;
 316         esac
 317     done
 318 }
 319
 320 post_process_cmdline() {
 321     local c
 322
 323     # If the codec family is disabled, disable all components of that family.
 324     # If the codec family is enabled, enable all components of that family.
 325     log_echo "Configuring selected codecs"
 326     for c in ${CODECS}; do
 327         disabled ${c%%_*} && disable ${c}
 328         enabled ${c%%_*} && enable ${c}
 329     done
 330
 331     # Enable all detected codecs, if they haven't been disabled
 332     for c in ${CODECS}; do soft_enable $c; done
 333
 334     # Enable the codec family if any component of that family is enabled
 335     for c in ${CODECS}; do
 336         enabled $c && enable ${c%_*}
 337     done
 338
 339     # Set the {en,de}coders variable if any algorithm in that class is enabled
 340     for c in ${CODECS}; do
 341         enabled ${c} && enable ${c##*_}s
 342     done
 343 }
 344
 345
 346 process_targets() {
 347     enabled child || write_common_config_banner
 348     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 349
 350     # TODO: add host tools target (obj_int_extract, etc)
 351
 352     # For fat binaries, call configure recursively to configure for each
 353     # binary architecture to be included.
 354     if enabled universal; then
 355         # Call configure (ourselves) for each subarchitecture
 356         for arch in $fat_bin_archs; do
 357             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 358         done
 359     fi
 360
 361     # The write_common_config (config.mk) logic is deferred until after the
 362     # recursive calls to configure complete, becuase we want our universal
 363     # targets to be executed last.
 364     write_common_config_targets
 365     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 366
 367     # Calculate the default distribution name, based on the enabled features
 368     local cf
 369     local DIST_DIR=vpx
 370     for cf in $CODEC_FAMILIES; do
 371         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 372             DIST_DIR="${DIST_DIR}-${cf}"
 373         elif enabled ${cf}_encoder; then
 374             DIST_DIR="${DIST_DIR}-${cf}cx"
 375         elif enabled ${cf}_decoder; then
 376             DIST_DIR="${DIST_DIR}-${cf}dx"
 377         fi
 378     done
 379     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 380     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 381     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 382     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 383     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 384     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 385     case "${tgt_os}" in
 386     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 387           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 388           ;;
 389     esac
 390     if [ -f "${source_path}/build/make/version.sh" ]; then
 391         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 392         DIST_DIR="${DIST_DIR}-${ver}"
 393         VERSION_STRING=${ver}
 394         ver=${ver%%-*}
 395         VERSION_PATCH=${ver##*.}
 396         ver=${ver%.*}
 397         VERSION_MINOR=${ver##*.}
 398         ver=${ver#v}
 399         VERSION_MAJOR=${ver%.*}
 400     fi
 401     enabled child || cat <<EOF >> config.mk
 402
 403 PREFIX=${prefix}
 404 ifeq (\$(MAKECMDGOALS),dist)
 405 DIST_DIR?=${DIST_DIR}
 406 else
 407 DIST_DIR?=\$(DESTDIR)${prefix}
 408 endif
 409 LIBSUBDIR=${libdir##${prefix}/}
 410
 411 VERSION_STRING=${VERSION_STRING}
 412
 413 VERSION_MAJOR=${VERSION_MAJOR}
 414 VERSION_MINOR=${VERSION_MINOR}
 415 VERSION_PATCH=${VERSION_PATCH}
 416
 417 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 418 EOF
 419     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 420
 421     #
 422     # Write makefiles for all enabled targets
 423     #
 424     for tgt in libs examples docs solution; do
 425         local tgt_fn="$tgt-$toolchain.mk"
 426
 427         if enabled $tgt; then
 428             echo "Creating makefiles for ${toolchain} ${tgt}"
 429             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 430             #write_${tgt}_config
 431         fi
 432     done
 433
 434 }
 435
 436 process_detect() {
 437     if enabled shared; then
 438         # Can only build shared libs on a subset of platforms. Doing this check
 439         # here rather than at option parse time because the target auto-detect
 440         # magic happens after the command line has been parsed.
 441         enabled linux || die "--enable-shared only supported on ELF for now"
 442     fi
 443     if [ -z "$CC" ]; then
 444         echo "Bypassing toolchain for environment detection."
 445         enable external_build
 446         check_header() {
 447             log fake_check_header "$@"
 448             header=$1
 449             shift
 450             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 451             disable $var
 452             case $header in
 453                 stdio.h)
 454                     true;
 455                 ;;
 456                 *)
 457                     local result=false
 458                     for d in "$@"; do
 459                         [ -f "${d##-I}/$header" ] && result=true && break
 460                     done
 461                     ${result:-true}
 462             esac && enable $var
 463         }
 464         check_ld() {
 465             true
 466         }
 467     fi
 468     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 469     check_ld <<EOF || die "Toolchain is unable to link executables"
 470 int main(void) {return 0;}
 471 EOF
 472     # check system headers
 473     check_header stdint.h
 474     check_header pthread.h
 475     check_header sys/mman.h
 476
 477     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 478 }
 479
 480 process_toolchain() {
 481     process_common_toolchain
 482
 483     # Handle universal binaries for this architecture
 484     case $toolchain in
 485         universal-darwin*)
 486             local darwin_ver=${tgt_os##darwin}
 487             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 488
 489             # Intel
 490             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 491             if [ $darwin_ver -gt 8 ]; then
 492                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 493             fi
 494             ;;
 495     esac
 496
 497
 498     # Enable some useful compiler flags
 499     if enabled gcc; then
 500         enabled werror && check_add_cflags -Werror
 501         check_add_cflags -Wall
 502         check_add_cflags -Wdeclaration-after-statement
 503         check_add_cflags -Wdisabled-optimization
 504         check_add_cflags -Wpointer-arith
 505         check_add_cflags -Wtype-limits
 506         check_add_cflags -Wcast-qual
 507         enabled extra_warnings || check_add_cflags -Wno-unused-function
 508     fi
 509
 510     if enabled icc; then
 511         enabled werror && check_add_cflags -Werror
 512         check_add_cflags -Wall
 513         check_add_cflags -Wpointer-arith
 514
 515         # ICC has a number of floating point optimizations that we disable
 516         # in favor of deterministic output WRT to other compilers
 517         add_cflags -fp-model precise
 518     fi
 519
 520     # Enable extra, harmless warnings. These might provide additional insight
 521     # to what the compiler is doing and why, but in general, but they shouldn't
 522     # be treated as fatal, even if we're treating warnings as errors.
 523     GCC_EXTRA_WARNINGS="
 524         -Wdisabled-optimization
 525         -Winline
 526     "
 527     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 528     RVCT_EXTRA_WARNINGS="
 529         --remarks
 530     "
 531     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 532     if enabled extra_warnings; then
 533         for w in ${EXTRA_WARNINGS}; do
 534             check_add_cflags ${w}
 535             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 536         done
 537     fi
 538
 539     # ccache only really works on gcc toolchains
 540     enabled gcc || soft_disable ccache
 541     if enabled mips; then
 542         enable dequant_tokens
 543         enable dc_recon
 544     fi
 545
 546     # Enable the postbuild target if building for visual studio.
 547     case "$tgt_cc" in
 548         vs*) enable msvs
 549              enable solution
 550              vs_version=${tgt_cc##vs}
 551              all_targets="${all_targets} solution"
 552         ;;
 553     esac
 554
 555     # Other toolchain specific defaults
 556     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 557
 558     if enabled postproc_visualizer; then
 559         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 560     fi
 561 }
 562
 563
 564 ##
 565 ## END APPLICATION SPECIFIC CONFIGURATION
 566 ##
 567 CONFIGURE_ARGS="$@"
 568 process "$@"
 569 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 570 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 571 static const char* const cfg = "$CONFIGURE_ARGS";
 572 const char *vpx_codec_build_config(void) {return cfg;}
 573 EOF