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