Export the version string as a makefile variable.
[profile/ivi/libvpx.git] / 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} 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 optimizations
156 enable fast_unaligned #allow unaligned accesses, if supported by hw
157 enable md5
158 enable spatial_resampling
159 enable multithread
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 "
215 CONFIG_LIST="
216     external_build
217     install_docs
218     install_bins
219     install_libs
220     install_srcs
221     debug
222     gprof
223     gcov
224     rvct
225     gcc
226     msvs
227     pic
228     big_endian
229
230     codec_srcs
231     debug_libs
232     fast_unaligned
233     mem_manager
234     mem_tracker
235     mem_checks
236     md5
237
238     dequant_tokens
239     dc_recon
240     runtime_cpu_detect
241     postproc
242     multithread
243     psnr
244     ${CODECS}
245     ${CODEC_FAMILIES}
246     encoders
247     decoders
248     static_msvcrt
249     spatial_resampling
250     realtime_only
251     shared
252     small
253     postproc_visualizer
254     os_support
255 "
256 CMDLINE_SELECT="
257     extra_warnings
258     werror
259     install_docs
260     install_bins
261     install_libs
262     install_srcs
263     debug
264     gprof
265     gcov
266     pic
267     optimizations
268     ccache
269     runtime_cpu_detect
270
271     libs
272     examples
273     libc
274     as
275     fast_unaligned
276     codec_srcs
277     debug_libs
278     md5
279
280     dequant_tokens
281     dc_recon
282     postproc
283     multithread
284     psnr
285     ${CODECS}
286     ${CODEC_FAMILIES}
287     static_msvcrt
288     mem_tracker
289     spatial_resampling
290     realtime_only
291     shared
292     small
293     postproc_visualizer
294 "
295
296 process_cmdline() {
297     for opt do
298         optval="${opt#*=}"
299         case "$opt" in
300         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
301         *) process_common_cmdline "$opt"
302         ;;
303         esac
304     done
305 }
306
307 post_process_cmdline() {
308     local c
309
310     # If the codec family is disabled, disable all components of that family.
311     # If the codec family is enabled, enable all components of that family.
312     log_echo "Configuring selected codecs"
313     for c in ${CODECS}; do
314         disabled ${c%%_*} && disable ${c}
315         enabled ${c%%_*} && enable ${c}
316     done
317
318     # Enable all detected codecs, if they haven't been disabled
319     for c in ${CODECS}; do soft_enable $c; done
320
321     # Enable the codec family if any component of that family is enabled
322     for c in ${CODECS}; do
323         enabled $c && enable ${c%_*}
324     done
325
326     # Set the {en,de}coders variable if any algorithm in that class is enabled
327     for c in ${CODECS}; do
328         enabled ${c} && enable ${c##*_}s
329     done
330 }
331
332
333 process_targets() {
334     enabled child || write_common_config_banner
335     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
336
337     # TODO: add host tools target (obj_int_extract, etc)
338
339     # For fat binaries, call configure recursively to configure for each
340     # binary architecture to be included.
341     if enabled universal; then
342         # Call configure (ourselves) for each subarchitecture
343         for arch in $fat_bin_archs; do
344             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
345         done
346     fi
347
348     # The write_common_config (config.mk) logic is deferred until after the
349     # recursive calls to configure complete, becuase we want our universal
350     # targets to be executed last.
351     write_common_config_targets
352     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
353
354     # Calculate the default distribution name, based on the enabled features
355     local cf
356     local DIST_DIR=vpx
357     for cf in $CODEC_FAMILIES; do
358         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
359             DIST_DIR="${DIST_DIR}-${cf}"
360         elif enabled ${cf}_encoder; then
361             DIST_DIR="${DIST_DIR}-${cf}cx"
362         elif enabled ${cf}_decoder; then
363             DIST_DIR="${DIST_DIR}-${cf}dx"
364         fi
365     done
366     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
367     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
368     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
369     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
370     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
371     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
372     case "${tgt_os}" in
373     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
374           DIST_DIR="${DIST_DIR}-${tgt_cc}"
375           ;;
376     esac
377     if [ -f "${source_path}/build/make/version.sh" ]; then
378         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
379         DIST_DIR="${DIST_DIR}-${ver}"
380         VERSION_STRING=${ver}
381         ver=${ver%%-*}
382         VERSION_PATCH=${ver##*.}
383         ver=${ver%.*}
384         VERSION_MINOR=${ver##*.}
385         ver=${ver#v}
386         VERSION_MAJOR=${ver%.*}
387     fi
388     enabled child || cat <<EOF >> config.mk
389 ifeq (\$(MAKECMDGOALS),dist)
390 DIST_DIR?=${DIST_DIR}
391 else
392 DIST_DIR?=\$(DESTDIR)${prefix}
393 endif
394 LIBSUBDIR=${libdir##${prefix}/}
395
396 VERSION_STRING=${VERSION_STRING}
397
398 VERSION_MAJOR=${VERSION_MAJOR}
399 VERSION_MINOR=${VERSION_MINOR}
400 VERSION_PATCH=${VERSION_PATCH}
401
402 CONFIGURE_ARGS=${CONFIGURE_ARGS}
403 EOF
404     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
405
406     #
407     # Write makefiles for all enabled targets
408     #
409     for tgt in libs examples docs solution; do
410         local tgt_fn="$tgt-$toolchain.mk"
411
412         if enabled $tgt; then
413             echo "Creating makefiles for ${toolchain} ${tgt}"
414             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
415             #write_${tgt}_config
416         fi
417     done
418
419 }
420
421 process_detect() {
422     if enabled shared; then
423         # Can only build shared libs on a subset of platforms. Doing this check
424         # here rather than at option parse time because the target auto-detect
425         # magic happens after the command line has been parsed.
426         enabled linux || die "--enable-shared only supported on ELF for now"
427     fi
428     if [ -z "$CC" ]; then
429         echo "Bypassing toolchain for environment detection."
430         enable external_build
431         check_header() {
432             log fake_check_header "$@"
433             header=$1
434             shift
435             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
436             disable $var
437             case $header in
438                 stdio.h)
439                     true;
440                 ;;
441                 *)
442                     local result=false
443                     for d in "$@"; do
444                         [ -f "${d##-I}/$header" ] && result=true && break
445                     done
446                     ${result:-true}
447             esac && enable $var
448         }
449         check_ld() {
450             true
451         }
452     fi
453     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
454     check_ld <<EOF || die "Toolchain is unable to link executables"
455 int main(void) {return 0;}
456 EOF
457     # check system headers
458     check_header stdint.h
459     check_header pthread.h
460     check_header sys/mman.h
461
462     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
463 }
464
465 process_toolchain() {
466     process_common_toolchain
467
468     # Handle universal binaries for this architecture
469     case $toolchain in
470         universal-darwin*)
471             local darwin_ver=${tgt_os##darwin}
472             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
473
474             # Intel
475             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
476             if [ $darwin_ver -gt 8 ]; then
477                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
478             fi
479             ;;
480     esac
481
482
483     # Enable some useful compiler flags
484     if enabled gcc; then
485         enabled werror && check_add_cflags -Werror
486         check_add_cflags -Wall
487         check_add_cflags -Wdeclaration-after-statement
488         check_add_cflags -Wdisabled-optimization
489         check_add_cflags -Wpointer-arith
490         check_add_cflags -Wtype-limits
491         check_add_cflags -Wcast-qual
492         enabled extra_warnings || check_add_cflags -Wno-unused-function
493     fi
494
495     if enabled icc; then
496         enabled werror && check_add_cflags -Werror
497         check_add_cflags -Wall
498         check_add_cflags -Wpointer-arith
499
500         # ICC has a number of floating point optimizations that we disable
501         # in favor of deterministic output WRT to other compilers
502         add_cflags -fp-model precise
503     fi
504
505     # Enable extra, harmless warnings. These might provide additional insight
506     # to what the compiler is doing and why, but in general, but they shouldn't
507     # be treated as fatal, even if we're treating warnings as errors.
508     GCC_EXTRA_WARNINGS="
509         -Wdisabled-optimization
510         -Winline
511     "
512     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
513     RVCT_EXTRA_WARNINGS="
514         --remarks
515     "
516     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
517     if enabled extra_warnings; then
518         for w in ${EXTRA_WARNINGS}; do
519             check_add_cflags ${w}
520             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
521         done
522     fi
523
524     # ccache only really works on gcc toolchains
525     enabled gcc || soft_disable ccache
526     if enabled mips; then
527         enable dequant_tokens
528         enable dc_recon
529     fi
530
531     # Enable the postbuild target if building for visual studio.
532     case "$tgt_cc" in
533         vs*) enable msvs
534              enable solution
535              vs_version=${tgt_cc##vs}
536              all_targets="${all_targets} solution"
537         ;;
538     esac
539
540     # Other toolchain specific defaults
541     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
542
543     if enabled postproc_visualizer; then
544         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
545     fi
546 }
547
548
549 ##
550 ## END APPLICATION SPECIFIC CONFIGURATION
551 ##
552 CONFIGURE_ARGS="$@"
553 process "$@"
554 cat <<EOF > ${BUILD_PFX}vpx_config.c
555 static const char* const cfg = "$CONFIGURE_ARGS";
556 const char *vpx_codec_build_config(void) {return cfg;}
557 EOF