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_spatial_resampling}    spatial sampling (scaling) support
  39   ${toggle_runtime_cpu_detect}    runtime cpu detection
  40   ${toggle_shared}                shared library support
  41   ${toggle_static}                static library support
  42   ${toggle_small}                 favor smaller size over speed
  43   ${toggle_postproc_visualizer}   macro block / block level visualizers
  44
  45 Codecs:
  46   Codecs can be selectively enabled or disabled individually, or by family:
  47       --disable-<codec>
  48   is equivalent to:
  49       --disable-<codec>-encoder
  50       --disable-<codec>-decoder
  51
  52   Codecs available in this distribution:
  53 EOF
  54 #restore editor state '
  55
  56     local family;
  57     local last_family;
  58     local c;
  59     local str;
  60     for c in ${CODECS}; do
  61         family=${c%_*}
  62         if [ "${family}" != "${last_family}" ]; then
  63             [ -z "${str}" ] || echo "${str}"
  64             str="$(printf '    %10s:' ${family})"
  65         fi
  66         str="${str} $(printf '%10s' ${c#*_})"
  67         last_family=${family}
  68     done
  69     echo "${str}"
  70     show_help_post
  71 }
  72
  73 ##
  74 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  75 ##
  76
  77 # all_platforms is a list of all supported target platforms. Maintain
  78 # alphabetically by architecture, generic-gnu last.
  79 all_platforms="${all_platforms} armv5te-linux-rvct"
  80 all_platforms="${all_platforms} armv5te-linux-gcc"
  81 all_platforms="${all_platforms} armv5te-none-rvct"
  82 all_platforms="${all_platforms} armv5te-symbian-gcc"
  83 all_platforms="${all_platforms} armv6-darwin-gcc"
  84 all_platforms="${all_platforms} armv6-linux-rvct"
  85 all_platforms="${all_platforms} armv6-linux-gcc"
  86 all_platforms="${all_platforms} armv6-none-rvct"
  87 all_platforms="${all_platforms} armv6-symbian-gcc"
  88 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  89 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  90 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  91 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  92 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  93 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  94 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  95 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
  96 all_platforms="${all_platforms} mips32-linux-gcc"
  97 all_platforms="${all_platforms} ppc32-darwin8-gcc"
  98 all_platforms="${all_platforms} ppc32-darwin9-gcc"
  99 all_platforms="${all_platforms} ppc32-linux-gcc"
 100 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 101 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 102 all_platforms="${all_platforms} ppc64-linux-gcc"
 103 all_platforms="${all_platforms} sparc-solaris-gcc"
 104 all_platforms="${all_platforms} x86-darwin8-gcc"
 105 all_platforms="${all_platforms} x86-darwin8-icc"
 106 all_platforms="${all_platforms} x86-darwin9-gcc"
 107 all_platforms="${all_platforms} x86-darwin9-icc"
 108 all_platforms="${all_platforms} x86-linux-gcc"
 109 all_platforms="${all_platforms} x86-linux-icc"
 110 all_platforms="${all_platforms} x86-solaris-gcc"
 111 all_platforms="${all_platforms} x86-win32-gcc"
 112 all_platforms="${all_platforms} x86-win32-vs7"
 113 all_platforms="${all_platforms} x86-win32-vs8"
 114 all_platforms="${all_platforms} x86-win32-vs9"
 115 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 116 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 117 all_platforms="${all_platforms} x86_64-linux-gcc"
 118 all_platforms="${all_platforms} x86_64-linux-icc"
 119 all_platforms="${all_platforms} x86_64-solaris-gcc"
 120 all_platforms="${all_platforms} x86_64-win64-vs8"
 121 all_platforms="${all_platforms} x86_64-win64-vs9"
 122 all_platforms="${all_platforms} universal-darwin8-gcc"
 123 all_platforms="${all_platforms} universal-darwin9-gcc"
 124 all_platforms="${all_platforms} generic-gnu"
 125
 126 # all_targets is a list of all targets that can be configured
 127 # note that these should be in dependency order for now.
 128 all_targets="libs examples docs"
 129
 130 # all targets available are enabled, by default.
 131 for t in ${all_targets}; do
 132     [ -f ${source_path}/${t}.mk ] && enable ${t}
 133 done
 134
 135 # check installed doxygen version
 136 doxy_version=$(doxygen --version 2>/dev/null)
 137 doxy_major=${doxy_version%%.*}
 138 if [ ${doxy_major:-0} -ge 1 ]; then
 139     doxy_version=${doxy_version#*.}
 140     doxy_minor=${doxy_version%%.*}
 141     doxy_patch=${doxy_version##*.}
 142
 143     [ $doxy_major -gt 1 ] && enable doxygen
 144     [ $doxy_minor -gt 5 ] && enable doxygen
 145     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 146 fi
 147
 148 # install everything except the sources, by default. sources will have
 149 # to be enabled when doing dist builds, since that's no longer a common
 150 # case.
 151 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 152 enable install_bins
 153 enable install_libs
 154
 155 enable static
 156 enable optimizations
 157 enable fast_unaligned #allow unaligned accesses, if supported by hw
 158 enable md5
 159 enable spatial_resampling
 160 enable os_support
 161
 162 [ -d ${source_path}/../include ] && enable alt_tree_layout
 163 for d in vp8; do
 164     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 165 done
 166
 167 if ! enabled alt_tree_layout; then
 168 # development environment
 169 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 170 else
 171 # customer environment
 172 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 173 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 174
 175 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 176 fi
 177
 178 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 179 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 180
 181 ARCH_LIST="
 182     arm
 183     mips
 184     x86
 185     x86_64
 186     ppc32
 187     ppc64
 188 "
 189 ARCH_EXT_LIST="
 190     armv5te
 191     armv6
 192     armv7
 193     iwmmxt
 194     iwmmxt2
 195
 196     mips32
 197
 198     mmx
 199     sse
 200     sse2
 201     sse3
 202     ssse3
 203     sse4_1
 204
 205     altivec
 206 "
 207 HAVE_LIST="
 208     ${ARCH_EXT_LIST}
 209     vpx_ports
 210     stdint_h
 211     alt_tree_layout
 212     pthread_h
 213     sys_mman_h
 214     unistd_h
 215 "
 216 EXPERIMENT_LIST="
 217     t8x8
 218     csm
 219     qimode
 220     uvintra
 221     compred
 222     enhanced_interp
 223     featureupdates
 224     high_precision_mv
 225     sixteenth_subpel_uv
 226     comp_intra_pred
 227     newentropy
 228     newupdate
 229     superblocks
 230     expanded_coef_context
 231 "
 232 CONFIG_LIST="
 233     external_build
 234     install_docs
 235     install_bins
 236     install_libs
 237     install_srcs
 238     debug
 239     gprof
 240     gcov
 241     rvct
 242     gcc
 243     msvs
 244     pic
 245     big_endian
 246
 247     codec_srcs
 248     debug_libs
 249     fast_unaligned
 250     mem_manager
 251     mem_tracker
 252     mem_checks
 253     md5
 254
 255     dequant_tokens
 256     dc_recon
 257     runtime_cpu_detect
 258     postproc
 259     internal_stats
 260     ${CODECS}
 261     ${CODEC_FAMILIES}
 262     encoders
 263     decoders
 264     static_msvcrt
 265     spatial_resampling
 266     shared
 267     static
 268     small
 269     postproc_visualizer
 270     os_support
 271     unit_tests
 272     experimental
 273     ${EXPERIMENT_LIST}
 274 "
 275 CMDLINE_SELECT="
 276     extra_warnings
 277     werror
 278     install_docs
 279     install_bins
 280     install_libs
 281     install_srcs
 282     debug
 283     gprof
 284     gcov
 285     pic
 286     optimizations
 287     ccache
 288     runtime_cpu_detect
 289
 290     libs
 291     examples
 292     libc
 293     as
 294     fast_unaligned
 295     codec_srcs
 296     debug_libs
 297     md5
 298
 299     dequant_tokens
 300     dc_recon
 301     postproc
 302     internal_stats
 303     ${CODECS}
 304     ${CODEC_FAMILIES}
 305     static_msvcrt
 306     mem_tracker
 307     spatial_resampling
 308     shared
 309     static
 310     small
 311     postproc_visualizer
 312     unit_tests
 313     experimental
 314 "
 315
 316 process_cmdline() {
 317     for opt do
 318         optval="${opt#*=}"
 319         case "$opt" in
 320         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 321         --enable-?*|--disable-?*)
 322         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 323         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 324             if enabled experimental; then
 325                 $action $option
 326             else
 327                 log_echo "Ignoring $opt -- not in experimental mode."
 328             fi
 329         else
 330             process_common_cmdline $opt
 331         fi
 332         ;;
 333         *) process_common_cmdline "$opt"
 334         ;;
 335         esac
 336     done
 337 }
 338
 339 post_process_cmdline() {
 340     local c
 341
 342     # If the codec family is disabled, disable all components of that family.
 343     # If the codec family is enabled, enable all components of that family.
 344     log_echo "Configuring selected codecs"
 345     for c in ${CODECS}; do
 346         disabled ${c%%_*} && disable ${c}
 347         enabled ${c%%_*} && enable ${c}
 348     done
 349
 350     # Enable all detected codecs, if they haven't been disabled
 351     for c in ${CODECS}; do soft_enable $c; done
 352
 353     # Enable the codec family if any component of that family is enabled
 354     for c in ${CODECS}; do
 355         enabled $c && enable ${c%_*}
 356     done
 357
 358     # Set the {en,de}coders variable if any algorithm in that class is enabled
 359     for c in ${CODECS}; do
 360         enabled ${c} && enable ${c##*_}s
 361     done
 362 }
 363
 364
 365 process_targets() {
 366     enabled child || write_common_config_banner
 367     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 368
 369     # TODO: add host tools target (obj_int_extract, etc)
 370
 371     # For fat binaries, call configure recursively to configure for each
 372     # binary architecture to be included.
 373     if enabled universal; then
 374         # Call configure (ourselves) for each subarchitecture
 375         for arch in $fat_bin_archs; do
 376             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 377         done
 378     fi
 379
 380     # The write_common_config (config.mk) logic is deferred until after the
 381     # recursive calls to configure complete, becuase we want our universal
 382     # targets to be executed last.
 383     write_common_config_targets
 384     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 385
 386     # Calculate the default distribution name, based on the enabled features
 387     local cf
 388     local DIST_DIR=vpx
 389     for cf in $CODEC_FAMILIES; do
 390         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 391             DIST_DIR="${DIST_DIR}-${cf}"
 392         elif enabled ${cf}_encoder; then
 393             DIST_DIR="${DIST_DIR}-${cf}cx"
 394         elif enabled ${cf}_decoder; then
 395             DIST_DIR="${DIST_DIR}-${cf}dx"
 396         fi
 397     done
 398     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 399     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 400     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 401     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 402     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 403     case "${tgt_os}" in
 404     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 405           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 406           ;;
 407     esac
 408     if [ -f "${source_path}/build/make/version.sh" ]; then
 409         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 410         DIST_DIR="${DIST_DIR}-${ver}"
 411         VERSION_STRING=${ver}
 412         ver=${ver%%-*}
 413         VERSION_PATCH=${ver##*.}
 414         ver=${ver%.*}
 415         VERSION_MINOR=${ver##*.}
 416         ver=${ver#v}
 417         VERSION_MAJOR=${ver%.*}
 418     fi
 419     enabled child || cat <<EOF >> config.mk
 420
 421 PREFIX=${prefix}
 422 ifeq (\$(MAKECMDGOALS),dist)
 423 DIST_DIR?=${DIST_DIR}
 424 else
 425 DIST_DIR?=\$(DESTDIR)${prefix}
 426 endif
 427 LIBSUBDIR=${libdir##${prefix}/}
 428
 429 VERSION_STRING=${VERSION_STRING}
 430
 431 VERSION_MAJOR=${VERSION_MAJOR}
 432 VERSION_MINOR=${VERSION_MINOR}
 433 VERSION_PATCH=${VERSION_PATCH}
 434
 435 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 436 EOF
 437     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 438
 439     #
 440     # Write makefiles for all enabled targets
 441     #
 442     for tgt in libs examples docs solution; do
 443         local tgt_fn="$tgt-$toolchain.mk"
 444
 445         if enabled $tgt; then
 446             echo "Creating makefiles for ${toolchain} ${tgt}"
 447             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 448             #write_${tgt}_config
 449         fi
 450     done
 451
 452 }
 453
 454 process_detect() {
 455     if enabled shared; then
 456         # Can only build shared libs on a subset of platforms. Doing this check
 457         # here rather than at option parse time because the target auto-detect
 458         # magic happens after the command line has been parsed.
 459         enabled linux || die "--enable-shared only supported on ELF for now"
 460     fi
 461     if [ -z "$CC" ]; then
 462         echo "Bypassing toolchain for environment detection."
 463         enable external_build
 464         check_header() {
 465             log fake_check_header "$@"
 466             header=$1
 467             shift
 468             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 469             disable $var
 470             case $header in
 471                 stdio.h)
 472                     true;
 473                 ;;
 474                 *)
 475                     local result=false
 476                     for d in "$@"; do
 477                         [ -f "${d##-I}/$header" ] && result=true && break
 478                     done
 479                     ${result:-true}
 480             esac && enable $var
 481         }
 482         check_ld() {
 483             true
 484         }
 485     fi
 486     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 487     check_ld <<EOF || die "Toolchain is unable to link executables"
 488 int main(void) {return 0;}
 489 EOF
 490     # check system headers
 491     check_header stdint.h
 492     check_header pthread.h
 493     check_header sys/mman.h
 494
 495     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 496 }
 497
 498 process_toolchain() {
 499     process_common_toolchain
 500
 501     # Handle universal binaries for this architecture
 502     case $toolchain in
 503         universal-darwin*)
 504             local darwin_ver=${tgt_os##darwin}
 505             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 506
 507             # Intel
 508             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 509             if [ $darwin_ver -gt 8 ]; then
 510                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 511             fi
 512             ;;
 513     esac
 514
 515
 516     # Enable some useful compiler flags
 517     if enabled gcc; then
 518         enabled werror && check_add_cflags -Werror
 519         check_add_cflags -Wall
 520         check_add_cflags -Wdeclaration-after-statement
 521         check_add_cflags -Wdisabled-optimization
 522         check_add_cflags -Wpointer-arith
 523         check_add_cflags -Wtype-limits
 524         check_add_cflags -Wcast-qual
 525         enabled extra_warnings || check_add_cflags -Wno-unused-function
 526     fi
 527
 528     if enabled icc; then
 529         enabled werror && check_add_cflags -Werror
 530         check_add_cflags -Wall
 531         check_add_cflags -Wpointer-arith
 532
 533         # ICC has a number of floating point optimizations that we disable
 534         # in favor of deterministic output WRT to other compilers
 535         add_cflags -fp-model precise
 536     fi
 537
 538     # Enable extra, harmless warnings. These might provide additional insight
 539     # to what the compiler is doing and why, but in general, but they shouldn't
 540     # be treated as fatal, even if we're treating warnings as errors.
 541     GCC_EXTRA_WARNINGS="
 542         -Wdisabled-optimization
 543         -Winline
 544     "
 545     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 546     RVCT_EXTRA_WARNINGS="
 547         --remarks
 548     "
 549     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 550     if enabled extra_warnings; then
 551         for w in ${EXTRA_WARNINGS}; do
 552             check_add_cflags ${w}
 553             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 554         done
 555     fi
 556
 557     # ccache only really works on gcc toolchains
 558     enabled gcc || soft_disable ccache
 559     if enabled mips; then
 560         enable dequant_tokens
 561         enable dc_recon
 562     fi
 563
 564     # Enable the postbuild target if building for visual studio.
 565     case "$tgt_cc" in
 566         vs*) enable msvs
 567              enable solution
 568              vs_version=${tgt_cc##vs}
 569              all_targets="${all_targets} solution"
 570         ;;
 571     esac
 572
 573     # Other toolchain specific defaults
 574     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 575
 576     if enabled postproc_visualizer; then
 577         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 578     fi
 579 }
 580
 581
 582 ##
 583 ## END APPLICATION SPECIFIC CONFIGURATION
 584 ##
 585 CONFIGURE_ARGS="$@"
 586 process "$@"
 587 cat <<EOF > ${BUILD_PFX}vpx_config.c
 588 static const char* const cfg = "$CONFIGURE_ARGS";
 589 const char *vpx_codec_build_config(void) {return cfg;}
 590 EOF