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