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_64-darwin9-gcc"
 111 all_platforms="${all_platforms} x86_64-linux-gcc"
 112 all_platforms="${all_platforms} x86_64-solaris-gcc"
 113 all_platforms="${all_platforms} x86_64-win64-vs8"
 114 all_platforms="${all_platforms} universal-darwin8-gcc"
 115 all_platforms="${all_platforms} universal-darwin9-gcc"
 116 all_platforms="${all_platforms} generic-gnu"
 117
 118 # all_targets is a list of all targets that can be configured
 119 # note that these should be in dependency order for now.
 120 all_targets="libs examples docs"
 121
 122 # all targets available are enabled, by default.
 123 for t in ${all_targets}; do
 124     [ -f ${source_path}/${t}.mk ] && enable ${t}
 125 done
 126
 127 # check installed doxygen version
 128 doxy_version=$(doxygen --version 2>/dev/null)
 129 doxy_major=${doxy_version%%.*}
 130 if [ ${doxy_major:-0} -ge 1 ]; then
 131     doxy_version=${doxy_version#*.}
 132     doxy_minor=${doxy_version%%.*}
 133     doxy_patch=${doxy_version##*.}
 134
 135     [ $doxy_major -gt 1 ] && enable doxygen
 136     [ $doxy_minor -gt 5 ] && enable doxygen
 137     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 138 fi
 139
 140 # install everything except the sources, by default. sources will have
 141 # to be enabled when doing dist builds, since that's no longer a common
 142 # case.
 143 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 144 enable install_bins
 145 enable install_libs
 146
 147 enable optimizations
 148 enable fast_unaligned #allow unaligned accesses, if supported by hw
 149 enable md5
 150 enable spatial_resampling
 151 enable multithread
 152
 153 [ -d ${source_path}/../include ] && enable alt_tree_layout
 154 for d in vp8; do
 155     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 156 done
 157
 158 if ! enabled alt_tree_layout; then
 159 # development environment
 160 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 161 else
 162 # customer environment
 163 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 164 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 165
 166 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 167 fi
 168
 169 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 170 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 171
 172 ARCH_LIST="
 173     arm
 174     mips
 175     x86
 176     x86_64
 177     ppc32
 178     ppc64
 179 "
 180 ARCH_EXT_LIST="
 181     armv5te
 182     armv6
 183     armv7
 184     iwmmxt
 185     iwmmxt2
 186
 187     mips32
 188
 189     mmx
 190     sse
 191     sse2
 192     sse3
 193     ssse3
 194
 195     altivec
 196 "
 197 HAVE_LIST="
 198     ${ARCH_EXT_LIST}
 199     vpx_ports
 200     stdint_h
 201     alt_tree_layout
 202     pthread_h
 203     sys_mman_h
 204 "
 205 CONFIG_LIST="
 206     external_build
 207     install_docs
 208     install_bins
 209     install_libs
 210     install_srcs
 211     debug
 212     gprof
 213     gcov
 214     rvct
 215     gcc
 216     msvs
 217     pic
 218     big_endian
 219
 220     codec_srcs
 221     debug_libs
 222     fast_unaligned
 223     mem_manager
 224     mem_tracker
 225     mem_checks
 226     md5
 227
 228     dequant_tokens
 229     dc_recon
 230     new_tokens
 231     runtime_cpu_detect
 232     postproc
 233     postproc_generic
 234     multithread
 235     psnr
 236     ${CODECS}
 237     ${CODEC_FAMILIES}
 238     encoders
 239     decoders
 240     static_msvcrt
 241     spatial_resampling
 242     realtime_only
 243     shared
 244 "
 245 CMDLINE_SELECT="
 246     extra_warnings
 247     werror
 248     install_docs
 249     install_bins
 250     install_libs
 251     install_srcs
 252     debug
 253     gprof
 254     gcov
 255     pic
 256     optimizations
 257     ccache
 258     runtime_cpu_detect
 259
 260     libs
 261     examples
 262     libc
 263     fast_unaligned
 264     codec_srcs
 265     debug_libs
 266     md5
 267
 268     dequant_tokens
 269     dc_recon
 270     new_tokens
 271     postproc
 272     postproc_generic
 273     multithread
 274     psnr
 275     ${CODECS}
 276     ${CODEC_FAMILIES}
 277     static_msvcrt
 278     mem_tracker
 279     spatial_resampling
 280     realtime_only
 281     shared
 282 "
 283
 284 process_cmdline() {
 285     for opt do
 286         optval="${opt#*=}"
 287         case "$opt" in
 288         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 289         *) process_common_cmdline $opt
 290         ;;
 291         esac
 292     done
 293 }
 294
 295 post_process_cmdline() {
 296     local c
 297
 298     # If the codec family is disabled, disable all components of that family.
 299     # If the codec family is enabled, enable all components of that family.
 300     log_echo "Configuring selected codecs"
 301     for c in ${CODECS}; do
 302         disabled ${c%%_*} && disable ${c}
 303         enabled ${c%%_*} && enable ${c}
 304     done
 305
 306     # Enable all detected codecs, if they haven't been disabled
 307     for c in ${CODECS}; do soft_enable $c; done
 308
 309     # Enable the codec family if any component of that family is enabled
 310     for c in ${CODECS}; do
 311         enabled $c && enable ${c%_*}
 312     done
 313
 314     # Set the {en,de}coders variable if any algorithm in that class is enabled
 315     for c in ${CODECS}; do
 316         enabled ${c} && enable ${c##*_}s
 317     done
 318
 319
 320 }
 321
 322
 323 process_targets() {
 324     enabled child || write_common_config_banner
 325     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 326
 327     # TODO: add host tools target (obj_int_extract, etc)
 328
 329     # For fat binaries, call configure recursively to configure for each
 330     # binary architecture to be included.
 331     if enabled universal; then
 332         # Call configure (ourselves) for each subarchitecture
 333         for arch in $fat_bin_archs; do
 334             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 335         done
 336     fi
 337
 338     # The write_common_config (config.mk) logic is deferred until after the
 339     # recursive calls to configure complete, becuase we want our universal
 340     # targets to be executed last.
 341     write_common_config_targets
 342     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 343
 344     # Calculate the default distribution name, based on the enabled features
 345     local cf
 346     local DIST_DIR=vpx
 347     for cf in $CODEC_FAMILIES; do
 348         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 349             DIST_DIR="${DIST_DIR}-${cf}"
 350         elif enabled ${cf}_encoder; then
 351             DIST_DIR="${DIST_DIR}-${cf}cx"
 352         elif enabled ${cf}_decoder; then
 353             DIST_DIR="${DIST_DIR}-${cf}dx"
 354         fi
 355     done
 356     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 357     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 358     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 359     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 360     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 361     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 362     case "${tgt_os}" in
 363     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 364           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 365           ;;
 366     esac
 367     if [ -f "${source_path}/build/make/version.sh" ]; then
 368         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 369         DIST_DIR="${DIST_DIR}-${ver}"
 370         ver=${ver%%-*}
 371         VERSION_PATCH=${ver##*.}
 372         ver=${ver%.*}
 373         VERSION_MINOR=${ver##*.}
 374         ver=${ver#v}
 375         VERSION_MAJOR=${ver%.*}
 376     fi
 377     enabled child || cat <<EOF >> config.mk
 378 ifeq (\$(MAKECMDGOALS),dist)
 379 DIST_DIR?=${DIST_DIR}
 380 else
 381 DIST_DIR?=\$(DESTDIR)${prefix}
 382 endif
 383 LIBSUBDIR=${libdir##${prefix}/}
 384
 385 VERSION_MAJOR=${VERSION_MAJOR}
 386 VERSION_MINOR=${VERSION_MINOR}
 387 VERSION_PATCH=${VERSION_PATCH}
 388
 389 EOF
 390     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 391
 392     #
 393     # Write makefiles for all enabled targets
 394     #
 395     for tgt in libs examples docs solution; do
 396         local tgt_fn="$tgt-$toolchain.mk"
 397
 398         if enabled $tgt; then
 399             echo "Creating makefiles for ${toolchain} ${tgt}"
 400             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 401             #write_${tgt}_config
 402         fi
 403     done
 404
 405 }
 406
 407 process_detect() {
 408     if enabled shared; then
 409         # Can only build shared libs on a subset of platforms. Doing this check
 410         # here rather than at option parse time because the target auto-detect
 411         # magic happens after the command line has been parsed.
 412         enabled linux || die "--enable-shared only supported on ELF for now"
 413     fi
 414     if [ -z "$CC" ]; then
 415         echo "Bypassing toolchain for environment detection."
 416         enable external_build
 417         check_header() {
 418             log fake_check_header "$@"
 419             header=$1
 420             shift
 421             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 422             disable $var
 423             case $header in
 424                 stdio.h)
 425                     true;
 426                 ;;
 427                 *)
 428                     local result=false
 429                     for d in "$@"; do
 430                         [ -f "${d##-I}/$header" ] && result=true && break
 431                     done
 432                     ${result:-true}
 433             esac && enable $var
 434         }
 435         check_ld() {
 436             true
 437         }
 438     fi
 439     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 440     check_ld <<EOF || die "Toolchain is unable to link executables"
 441 int main(void) {return 0;}
 442 EOF
 443     # check system headers
 444     check_header stdint.h
 445     check_header pthread.h
 446     check_header sys/mman.h
 447
 448     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 449 }
 450
 451 process_toolchain() {
 452     process_common_toolchain
 453
 454     # Handle universal binaries for this architecture
 455     case $toolchain in
 456         universal-darwin*)
 457             local darwin_ver=${tgt_os##darwin}
 458             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 459
 460             # Intel
 461             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 462             if [ $darwin_ver -gt 8 ]; then
 463                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 464             fi
 465             ;;
 466     esac
 467
 468
 469     # Enable some useful compiler flags
 470     if enabled gcc; then
 471         enabled werror && check_add_cflags -Werror
 472         check_add_cflags -Wall
 473         check_add_cflags -Wdeclaration-after-statement
 474         check_add_cflags -Wdisabled-optimization
 475         check_add_cflags -Wpointer-arith
 476         check_add_cflags -Wtype-limits
 477         check_add_cflags -Wcast-qual
 478         enabled extra_warnings || check_add_cflags -Wno-unused
 479     fi
 480
 481     if enabled icc; then
 482         enabled werror && check_add_cflags -Werror
 483         check_add_cflags -Wall
 484         check_add_cflags -Wpointer-arith
 485
 486         # ICC has a number of floating point optimizations that we disable
 487         # in favor of deterministic output WRT to other compilers
 488         add_cflags -fp-model precise
 489     fi
 490
 491     # Enable extra, harmless warnings. These might provide additional insight
 492     # to what the compiler is doing and why, but in general, but they shouldn't
 493     # be treated as fatal, even if we're treating warnings as errors.
 494     GCC_EXTRA_WARNINGS="
 495         -Wdisabled-optimization
 496         -Winline
 497     "
 498     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 499     RVCT_EXTRA_WARNINGS="
 500         --remarks
 501     "
 502     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 503     if enabled extra_warnings; then
 504         for w in ${EXTRA_WARNINGS}; do
 505             check_add_cflags ${w}
 506             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 507         done
 508     fi
 509
 510     # ccache only really works on gcc toolchains
 511     enabled gcc || soft_disable ccache
 512     if enabled mips; then
 513         enable dequant_tokens
 514         enable dc_recon
 515     fi
 516
 517     # Enable the postbuild target if building for visual studio.
 518     case "$tgt_cc" in
 519         vs*) enable msvs
 520              enable solution
 521              vs_version=${tgt_cc##vs}
 522              all_targets="${all_targets} solution"
 523              INLINE=__inline
 524              FORCEINLINE=__forceinline
 525         ;;
 526     esac
 527
 528     # Other toolchain specific defaults
 529     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 530 }
 531
 532
 533 ##
 534 ## END APPLICATION SPECIFIC CONFIGURATION
 535 ##
 536 CONFIGURE_ARGS="$@"
 537 process "$@"
 538 cat <<EOF > ${BUILD_PFX}vpx_config.c
 539 static const char* const cfg = "$CONFIGURE_ARGS";
 540 const char *vpx_codec_build_config(void) {return cfg;}
 541 EOF