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