ARM: update NEON chroma deblock functions to NV12 pixel format
[x262.git] / configure
1 #!/bin/bash
2
3 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
4 cat <<EOF
5 Usage: ./configure [options]
6
7 Help:
8   -h, --help               print this message
9
10 Standard options:
11   --prefix=PREFIX          install architecture-independent files in PREFIX
12                            [/usr/local]
13   --exec-prefix=EPREFIX    install architecture-dependent files in EPREFIX
14                            [PREFIX]
15   --bindir=DIR             install binaries in DIR [EPREFIX/bin]
16   --libdir=DIR             install libs in DIR [EPREFIX/lib]
17   --includedir=DIR         install includes in DIR [PREFIX/include]
18   --extra-asflags=EASFLAGS add EASFLAGS to ASFLAGS
19   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS
20   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS
21
22 Configuration options:
23   --disable-cli            disable cli
24   --system-libx264         use system libx264 instead of internal
25   --enable-shared          build shared library
26   --enable-static          build static library
27   --disable-gpl            disable GPL-only features
28   --disable-thread         disable multithreaded encoding
29   --enable-win32thread     use win32threads (windows only)
30   --disable-interlaced     disable interlaced encoding support
31   --enable-visualize       enable visualization (X11 only)
32   --bit-depth=BIT_DEPTH    set output bit depth (8-10) [8]
33   --chroma-format=FORMAT   output chroma format (420, 422, 444, all) [all]
34
35 Advanced options:
36   --disable-asm            disable platform-specific assembly optimizations
37   --enable-debug           add -g
38   --enable-gprof           add -pg
39   --enable-strip           add -s
40   --enable-pic             build position-independent code
41
42 Cross-compilation:
43   --host=HOST              build programs to run on HOST
44   --cross-prefix=PREFIX    use PREFIX for compilation tools
45   --sysroot=SYSROOT        root of cross-build tree
46
47 External library support:
48   --disable-avs            disable avisynth support (windows only)
49   --disable-swscale        disable swscale support
50   --disable-lavf           disable libavformat support
51   --disable-ffms           disable ffmpegsource support
52   --disable-gpac           disable gpac support
53
54 EOF
55 exit 1
56 fi
57
58 log_check() {
59     echo -n "checking $1... " >> config.log
60 }
61
62 log_ok() {
63     echo "yes" >> config.log
64 }
65
66 log_fail() {
67     echo "no" >> config.log
68 }
69
70 log_msg() {
71     echo "$1" >> config.log
72 }
73
74 intel_cflags() {
75     # Intel Compiler issues an incredibly large number of warnings on any warning level,
76     # suppress them by disabling all warnings rather than having to use #pragmas to disable most of them
77     for arg in $*; do
78         [ $arg = -ffast-math ] && arg=
79         [[ "$arg" = -falign-loops* ]] && arg=
80         [ "$arg" = -fno-tree-vectorize ] && arg=
81         [ "$arg" = -Wshadow ] && arg=
82         if [ $compiler = ICL ]; then
83             [ "$arg" = -Wall ] && arg=-W0
84             [ "$arg" = -g ] && arg=-Z7
85             [ "$arg" = -fomit-frame-pointer ] && arg=
86             [ "$arg" = -s ] && arg=
87             [ "$arg" = -fPIC ] && arg=
88         else
89             [ "$arg" = -Wall ] && arg=-w0
90         fi
91
92         [ -n "$arg" ] && echo -n "$arg "
93     done
94 }
95
96 icl_ldflags() {
97     for arg in $*; do
98         arg=${arg/LIBPATH/libpath}
99         [ ${arg#-libpath:} == $arg -a ${arg#-l} != $arg ] && arg=${arg#-l}.lib
100         [ ${arg#-L} != $arg ] && arg=-libpath:${arg#-L}
101         [ $arg = -Wl,--large-address-aware ] && arg=-largeaddressaware
102         [ $arg = -s ] && arg=
103         [ "$arg" = -Wl,-Bsymbolic ] && arg=
104
105         arg=${arg/pthreadGC/pthreadVC}
106         [ "$arg" = avifil32.lib ] && arg=vfw32.lib
107         [ "$arg" = gpac_static.lib ] && arg=libgpac_static.lib
108
109         [ -n "$arg" ] && echo -n "$arg "
110     done
111 }
112
113 cc_check() {
114     if [ -z "$3" ]; then
115         if [ -z "$1$2" ]; then
116             log_check "whether $CC works"
117         elif [ -z "$1" ]; then
118             log_check "for $2"
119         else
120             log_check "for $1"
121         fi
122     elif [ -z "$1" ]; then
123         if [ -z "$2" ]; then
124             log_check "whether $CC supports $3"
125         else
126             log_check "whether $CC supports $3 with $2"
127         fi
128     else
129         log_check "for $3 in $1";
130     fi
131     rm -f conftest.c
132     [ -n "$1" ] && echo "#include <$1>" > conftest.c
133     echo "int main () { $3 return 0; }" >> conftest.c
134     if [ $compiler = ICL ]; then
135         cc_cmd="$CC conftest.c $CFLAGS $2 -link $(icl_ldflags $2 $LDFLAGSCLI $LDFLAGS)"
136     else
137         cc_cmd="$CC conftest.c $CFLAGS $2 $LDFLAGSCLI $LDFLAGS -o conftest"
138     fi
139     if $cc_cmd >conftest.log 2>&1; then
140         res=$?
141         log_ok
142     else
143         res=$?
144         log_fail
145         log_msg "Failed commandline was:"
146         log_msg "--------------------------------------------------"
147         log_msg "$cc_cmd"
148         cat conftest.log >> config.log
149         log_msg "--------------------------------------------------"
150         log_msg "Failed program was:"
151         log_msg "--------------------------------------------------"
152         cat conftest.c >> config.log
153         log_msg "--------------------------------------------------"
154     fi
155     return $res
156 }
157
158 cpp_check() {
159     log_check "whether $3 is true"
160     rm -f conftest.c
161     [ -n "$1" ] && echo "#include <$1>" > conftest.c
162     echo -e "#if !($3) \n#error $4 \n#endif " >> conftest.c
163
164     if $CC conftest.c $CFLAGS $2 -E -o conftest >conftest.log 2>&1; then
165         res=$?
166         log_ok
167     else
168         res=$?
169         log_fail
170         log_msg "--------------------------------------------------"
171         cat conftest.log >> config.log
172         log_msg "--------------------------------------------------"
173         log_msg "Failed program was:"
174         log_msg "--------------------------------------------------"
175         cat conftest.c >> config.log
176         log_msg "--------------------------------------------------"
177     fi
178     return $res
179 }
180
181 as_check() {
182     log_check "whether $AS supports $1"
183     echo "$1" > conftest.asm
184     if $AS conftest.asm $ASFLAGS $2 -o conftest.o >conftest.log 2>&1; then
185         res=$?
186         log_ok
187     else
188         res=$?
189         log_fail
190         log_msg "Failed commandline was:"
191         log_msg "--------------------------------------------------"
192         log_msg "$AS conftest.asm $ASFLAGS $2 -o conftest.o"
193         cat conftest.log >> config.log
194         log_msg "--------------------------------------------------"
195         log_msg "Failed program was:"
196         log_msg "--------------------------------------------------"
197         cat conftest.asm >> config.log
198         log_msg "--------------------------------------------------"
199     fi
200     return $res
201 }
202
203 define() {
204     echo "#define $1$([ -n "$2" ] && echo " $2" || echo " 1")" >> config.h
205 }
206
207 die() {
208     log_msg "DIED: $@"
209     echo "$@"
210     exit 1
211 }
212
213 rm -f x264_config.h config.h config.mak config.log x264.pc x264.def conftest*
214
215 prefix='/usr/local'
216 exec_prefix='${prefix}'
217 bindir='${exec_prefix}/bin'
218 libdir='${exec_prefix}/lib'
219 includedir='${prefix}/include'
220 DEVNULL='/dev/null'
221
222 cli="yes"
223 cli_libx264="internal"
224 shared="no"
225 static="no"
226 avs="auto"
227 lavf="auto"
228 ffms="auto"
229 gpac="auto"
230 gpl="yes"
231 thread="auto"
232 swscale="auto"
233 asm="auto"
234 interlaced="yes"
235 debug="no"
236 gprof="no"
237 strip="no"
238 pic="no"
239 vis="no"
240 bit_depth="8"
241 chroma_format="all"
242 compiler="GNU"
243
244 CFLAGS="$CFLAGS -Wall -I."
245 LDFLAGS="$LDFLAGS"
246 LDFLAGSCLI="$LDFLAGSCLI"
247 ASFLAGS="$ASFLAGS"
248 HAVE_GETOPT_LONG=1
249 cross_prefix=""
250
251 EXE=""
252
253 # list of all preprocessor HAVE values we can define
254 CONFIG_HAVE="MALLOC_H ALTIVEC ALTIVEC_H MMX ARMV6 ARMV6T2 NEON BEOSTHREAD POSIXTHREAD WIN32THREAD THREAD LOG2F VISUALIZE SWSCALE LAVF FFMS GPAC GF_MALLOC AVS GPL VECTOREXT INTERLACED CPU_COUNT"
255
256 # parse options
257
258 for opt do
259     optarg="${opt#*=}"
260     case "$opt" in
261         --prefix=*)
262             prefix="$optarg"
263             ;;
264         --exec-prefix=*)
265             exec_prefix="$optarg"
266             ;;
267         --bindir=*)
268             bindir="$optarg"
269             ;;
270         --libdir=*)
271             libdir="$optarg"
272             ;;
273         --includedir=*)
274             includedir="$optarg"
275             ;;
276         --disable-cli)
277             cli="no"
278             ;;
279         --system-libx264)
280             cli_libx264="system"
281             ;;
282         --enable-shared)
283             shared="yes"
284             ;;
285         --enable-static)
286             static="yes"
287             ;;
288         --disable-asm)
289             asm="no"
290             ;;
291         --disable-interlaced)
292             interlaced="no"
293             ;;
294         --disable-avs)
295             avs="no"
296             ;;
297         --disable-lavf)
298             lavf="no"
299             ;;
300         --disable-ffms)
301             ffms="no"
302             ;;
303         --disable-gpac)
304             gpac="no"
305             ;;
306         --disable-gpl)
307             gpl="no"
308             ;;
309         --extra-asflags=*)
310             ASFLAGS="$ASFLAGS $optarg"
311             ;;
312         --extra-cflags=*)
313             CFLAGS="$CFLAGS $optarg"
314             ;;
315         --extra-ldflags=*)
316             LDFLAGS="$LDFLAGS $optarg"
317             ;;
318         --disable-thread)
319             thread="no"
320             ;;
321         --enable-win32thread)
322             thread="win32"
323             ;;
324         --disable-swscale)
325             swscale="no"
326             ;;
327         --enable-debug)
328             debug="yes"
329             ;;
330         --enable-gprof)
331             CFLAGS="$CFLAGS -pg"
332             LDFLAGS="$LDFLAGS -pg"
333             gprof="yes"
334             ;;
335         --enable-strip)
336             strip="yes"
337             ;;
338         --enable-pic)
339             pic="yes"
340             ;;
341         --enable-visualize)
342             vis="yes"
343             ;;
344         --host=*)
345             host="$optarg"
346             ;;
347         --cross-prefix=*)
348             cross_prefix="$optarg"
349             ;;
350         --sysroot=*)
351             CFLAGS="$CFLAGS --sysroot=$optarg"
352             LDFLAGS="$LDFLAGS --sysroot=$optarg"
353             ;;
354         --bit-depth=*)
355             bit_depth="$optarg"
356             if [ "$bit_depth" -lt "8" -o "$bit_depth" -gt "10" ]; then
357                 echo "Supplied bit depth must be in range [8,10]."
358                 exit 1
359             fi
360             bit_depth=`expr $bit_depth + 0`
361             ;;
362         --chroma-format=*)
363             chroma_format="$optarg"
364             if [ $chroma_format != "420" -a $chroma_format != "422" -a $chroma_format != "444" -a $chroma_format != "all" ]; then
365                 echo "Supplied chroma format must be 420, 422, 444 or all."
366                 exit 1
367             fi
368             ;;
369         *)
370             echo "Unknown option $opt, ignored"
371             ;;
372     esac
373 done
374
375 [ "$cli" = "no" -a "$shared" = "no" -a "$static" = "no" ] && die "Nothing to build. Enable cli, shared or static."
376
377 CC="${CC-${cross_prefix}gcc}"
378 AR="${AR-${cross_prefix}ar}"
379 RANLIB="${RANLIB-${cross_prefix}ranlib}"
380 STRIP="${STRIP-${cross_prefix}strip}"
381
382 if [ "x$host" = x ]; then
383     host=`./config.guess`
384 fi
385 # normalize a triplet into a quadruplet
386 host=`./config.sub $host`
387
388 # split $host
389 host_cpu="${host%%-*}"
390 host="${host#*-}"
391 host_vendor="${host%%-*}"
392 host_os="${host#*-}"
393
394 # test for use of Intel Compiler
395 if [[ $host_os = mingw* || $host_os = cygwin* ]]; then
396     if [[ `basename "$CC"` = icl* ]]; then
397         # Windows Intel Compiler creates dependency generation with absolute Windows paths, Cygwin's make does not support Windows paths.
398         [[ $host_os = cygwin* ]] && die "Windows Intel Compiler support requires MSYS"
399         compiler=ICL
400         CFLAGS="$CFLAGS -Qstd=c99 -nologo -Qms0 -DHAVE_STRING_H -Iextras"
401         QPRE="-Q"
402         `$CC 2>&1 | grep -q IA-32` && host_cpu=i486
403         `$CC 2>&1 | grep -q "Intel(R) 64"` && host_cpu=x86_64
404         cpp_check "" "" "_MSC_VER >= 1400" || die "Windows Intel Compiler support requires Visual Studio 2005 or newer"
405     fi
406 else
407     if [[ `basename "$CC"` = icc* ]]; then
408         AR="xiar"
409         compiler=ICC
410         QPRE="-"
411     fi
412 fi
413
414 case $host_os in
415     beos*)
416         SYS="BEOS"
417         define HAVE_MALLOC_H
418         ;;
419     darwin*)
420         SYS="MACOSX"
421         CFLAGS="$CFLAGS -falign-loops=16"
422         LDFLAGS="$LDFLAGS -lm"
423         if [ "$pic" = "no" ]; then
424             cc_check "" -mdynamic-no-pic && CFLAGS="$CFLAGS -mdynamic-no-pic"
425         fi
426         ;;
427     freebsd*)
428         SYS="FREEBSD"
429         LDFLAGS="$LDFLAGS -lm"
430         ;;
431     kfreebsd*-gnu)
432         SYS="FREEBSD"
433         define HAVE_MALLOC_H
434         LDFLAGS="$LDFLAGS -lm"
435         ;;
436     netbsd*)
437         SYS="NETBSD"
438         LDFLAGS="$LDFLAGS -lm"
439         ;;
440     openbsd*)
441         SYS="OPENBSD"
442         LDFLAGS="$LDFLAGS -lm"
443         ;;
444     *linux*)
445         SYS="LINUX"
446         define HAVE_MALLOC_H
447         LDFLAGS="$LDFLAGS -lm"
448         ;;
449     gnu*)
450         SYS="HURD"
451         define HAVE_MALLOC_H
452         LDFLAGS="$LDFLAGS -lm"
453         ;;
454     cygwin*)
455         EXE=".exe"
456         if cc_check "" -mno-cygwin; then
457             CFLAGS="$CFLAGS -mno-cygwin"
458             LDFLAGS="$LDFLAGS -mno-cygwin"
459         fi
460         if cpp_check "" "" "defined(__CYGWIN32__)" ; then
461             define HAVE_MALLOC_H
462             SYS="CYGWIN"
463         else
464             SYS="WINDOWS"
465             DEVNULL="NUL"
466         fi
467         ;;
468     mingw*)
469         SYS="WINDOWS"
470         EXE=".exe"
471         DEVNULL="NUL"
472         ;;
473     sunos*|solaris*)
474         SYS="SunOS"
475         define HAVE_MALLOC_H
476         LDFLAGS="$LDFLAGS -lm"
477         if cc_check "" /usr/lib/64/values-xpg6.o; then
478             LDFLAGS="$LDFLAGS /usr/lib/64/values-xpg6.o"
479         else
480             LDFLAGS="$LDFLAGS /usr/lib/values-xpg6.o"
481         fi
482         HAVE_GETOPT_LONG=0
483         ;;
484     *)
485         die "Unknown system $host, edit the configure"
486         ;;
487 esac
488
489 case $host_cpu in
490     i*86)
491         ARCH="X86"
492         AS="yasm"
493         ASFLAGS="$ASFLAGS -O2"
494         if [ $compiler = GNU ]; then
495             if [[ "$asm" == auto && "$CFLAGS" != *-march* ]]; then
496                 CFLAGS="$CFLAGS -march=i686"
497             fi
498             if [[ "$asm" == auto && "$CFLAGS" != *-mfpmath* ]]; then
499                 CFLAGS="$CFLAGS -mfpmath=sse -msse"
500             fi
501         else
502             # icc on linux has various degrees of mod16 stack support
503             if [ $SYS = LINUX ]; then
504                 # < 11 is completely incapable of keeping a mod16 stack
505                 if cpp_check "" "" "__INTEL_COMPILER < 1100" ; then
506                     define BROKEN_STACK_ALIGNMENT
507                 # 11 <= x < 12 is capable of keeping a mod16 stack, but defaults to not doing so.
508                 elif cpp_check "" "" "__INTEL_COMPILER < 1200" ; then
509                     CFLAGS="$CFLAGS -falign-stack=assume-16-byte"
510                 fi
511                 # >= 12 defaults to a mod16 stack
512             fi
513             # icl on windows has no mod16 stack support
514             [ $SYS = WINDOWS ] && define BROKEN_STACK_ALIGNMENT
515         fi
516         if [ "$SYS" = MACOSX ]; then
517             ASFLAGS="$ASFLAGS -f macho -DPREFIX"
518         elif [ "$SYS" = WINDOWS -o "$SYS" = CYGWIN ]; then
519             ASFLAGS="$ASFLAGS -f win32 -DPREFIX"
520             LDFLAGS="$LDFLAGS -Wl,--large-address-aware"
521         else
522             ASFLAGS="$ASFLAGS -f elf"
523         fi
524         ;;
525     x86_64)
526         ARCH="X86_64"
527         AS="yasm"
528         if [ "$SYS" = MACOSX ]; then
529             ASFLAGS="$ASFLAGS -f macho64 -m amd64 -DPIC -DPREFIX"
530             if cc_check '' "-arch x86_64"; then
531                 CFLAGS="$CFLAGS -arch x86_64"
532                 LDFLAGS="$LDFLAGS -arch x86_64"
533             fi
534         elif [ "$SYS" = WINDOWS ]; then
535             ASFLAGS="$ASFLAGS -f win32 -m amd64"
536             # only the GNU toolchain is inconsistent in prefixing function names with _
537             [ $compiler = GNU ] && cc_check "" "-S" && grep -q "_main:" conftest && ASFLAGS="$ASFLAGS -DPREFIX"
538         else
539             ASFLAGS="$ASFLAGS -f elf -m amd64"
540         fi
541         ;;
542     powerpc|powerpc64)
543         ARCH="PPC"
544         if [ $asm = auto ] ; then
545             define HAVE_ALTIVEC
546             AS="${AS-${cross_prefix}gcc}"
547             if [ $SYS = MACOSX ] ; then
548                 CFLAGS="$CFLAGS -faltivec -fastf -mcpu=G4"
549             else
550                 CFLAGS="$CFLAGS -maltivec -mabi=altivec"
551                 define HAVE_ALTIVEC_H
552             fi
553         fi
554         ;;
555     sparc)
556         ARCH="SPARC"
557         case $(uname -m) in
558             sun4u|sun4v)
559                 if [ $asm = auto ]; then
560                     ARCH="UltraSPARC"
561                     if ! echo $CFLAGS | grep -Eq '\-mcpu' ; then
562                         CFLAGS="$CFLAGS -mcpu=ultrasparc"
563                         LDFLAGS="$LDFLAGS -mcpu=ultrasparc"
564                     fi
565                     AS="${AS-${cross_prefix}as}"
566                     ASFLAGS="$ASFLAGS -xarch=v8plusa"
567                 fi
568                 ;;
569         esac
570         ;;
571     mips|mipsel|mips64|mips64el)
572         ARCH="MIPS"
573         ;;
574     arm*)
575         ARCH="ARM"
576         if [ "$SYS" = MACOSX ] ; then
577             AS="${AS-extras/gas-preprocessor.pl $CC}"
578             ASFLAGS="$ASFLAGS -DPREFIX -DPIC"  # apple's ld doesn't support movw/movt relocations at all
579             # build for armv7 by default
580             if ! echo $CFLAGS | grep -Eq '\-arch' ; then
581                 CFLAGS="$CFLAGS -arch armv7"
582                 LDFLAGS="$LDFLAGS -arch armv7"
583             fi
584         else
585             AS="${AS-${cross_prefix}gcc}"
586         fi
587         ;;
588     s390|s390x)
589         ARCH="S390"
590         ;;
591     parisc|parisc64)
592         ARCH="PARISC"
593         ;;
594     ia64)
595         ARCH="IA64"
596         ;;
597     alpha*)
598         ARCH="ALPHA"
599         ;;
600     *)
601         ARCH="$(echo $host_cpu | tr a-z A-Z)"
602         ;;
603 esac
604
605 log_msg "x264 configure script"
606 if [ -n "$*" ]; then
607     msg="Command line options:"
608     for i in $@; do
609         msg="$msg \"$i\""
610     done
611     log_msg "$msg"
612 fi
613 log_msg ""
614
615 # check requirements
616
617 cc_check || die "No working C compiler found."
618
619 if [ $compiler != ICL ]; then
620     if cc_check '' -std=gnu99 'for( int i = 0; i < 9; i++ );' ; then
621         CFLAGS="$CFLAGS -std=gnu99"
622     elif cc_check '' -std=c99 'for( int i = 0; i < 9; i++ );' ; then
623         CFLAGS="$CFLAGS -std=c99 -D_POSIX_C_SOURCE=200112L -D_BSD_SOURCE"
624     elif ! cc_check '' '' 'for( int i = 0; i < 9; i++ );' ; then
625         die "C99 compiler is needed for compilation."
626     fi
627 fi
628
629 if [ $shared = yes -a \( $ARCH = "X86_64" -o $ARCH = "PPC" -o $ARCH = "ALPHA" -o $ARCH = "ARM" -o $ARCH = "IA64" \) ] ; then
630     pic="yes"
631 fi
632
633 if [ $asm = auto -a \( $ARCH = X86 -o $ARCH = X86_64 \) ] ; then
634     if ! as_check "vpaddw xmm0, xmm0, xmm0" ; then
635         VER=`($AS --version || echo no assembler) 2>/dev/null | head -n 1`
636         echo "Found $VER"
637         echo "Minimum version is yasm-0.7.0"
638         echo "If you really want to compile without asm, configure with --disable-asm."
639         exit 1
640     fi
641     if ! cc_check '' '' '__asm__("pabsw %xmm0, %xmm0");' ; then
642         VER=`(${cross_prefix}as --version || echo no gnu as) 2>/dev/null | head -n 1`
643         echo "Found $VER"
644         echo "Minimum version is binutils-2.17"
645         echo "Your compiler can't handle inline SSSE3 asm."
646         echo "If you really want to compile without asm, configure with --disable-asm."
647         exit 1
648     fi
649     define HAVE_MMX
650 fi
651
652 if [ $asm = auto -a $ARCH = ARM ] ; then
653     # set flags so neon is built by default
654     echo $CFLAGS | grep -Eq '(-mcpu|-march|-mfpu)' || CFLAGS="$CFLAGS -mcpu=cortex-a8 -mfpu=neon"
655
656     if  cc_check '' '' '__asm__("rev ip, ip");' ; then      define HAVE_ARMV6
657         cc_check '' '' '__asm__("movt r0, #0");'         && define HAVE_ARMV6T2
658         cc_check '' '' '__asm__("vadd.i16 q0, q0, q0");' && define HAVE_NEON
659         ASFLAGS="$ASFLAGS $CFLAGS -c"
660     else
661         echo "You specified a pre-ARMv6 or Thumb-1 CPU in your CFLAGS."
662         echo "If you really want to run on such a CPU, configure with --disable-asm."
663         exit 1
664     fi
665 fi
666
667 [ $asm = no ] && AS=""
668 [ "x$AS" = x ] && asm="no" || asm="yes"
669
670 define ARCH_$ARCH
671 define SYS_$SYS
672
673 # skip endianness check for Intel Compiler, as all supported platforms are little. the -ipo flag will also cause the check to fail
674 if [ $compiler = GNU ]; then
675     echo "int i[2] = {0x42494745,0}; double f[2] = {0x1.0656e6469616ep+102,0};" > conftest.c
676     $CC $CFLAGS conftest.c -c -o conftest.o 2>/dev/null || die "endian test failed"
677     if (${cross_prefix}strings -a conftest.o | grep -q BIGE) && (${cross_prefix}strings -a conftest.o | grep -q FPendian) ; then
678         define WORDS_BIGENDIAN
679     elif !(${cross_prefix}strings -a conftest.o | grep -q EGIB && ${cross_prefix}strings -a conftest.o | grep -q naidnePF) ; then
680         die "endian test failed"
681     fi
682 fi
683
684 # autodetect options that weren't forced nor disabled
685
686 # pthread-win32 is lgpl, prevent its use if --disable-gpl is specified and targeting windows
687 [ "$SYS" = "WINDOWS" -a "$gpl" = "no" -a "$thread" = "auto" ] && thread="win32"
688
689 libpthread=""
690 if [ "$thread" = "auto" ]; then
691     thread="no"
692     case $SYS in
693         BEOS)
694             thread="beos"
695             define HAVE_BEOSTHREAD
696             ;;
697         WINDOWS)
698             if cc_check pthread.h -lpthread "pthread_create(0,0,0,0);" ; then
699                 thread="posix"
700                 libpthread="-lpthread"
701             elif cc_check pthread.h -lpthreadGC2 "pthread_create(0,0,0,0);" ; then
702                 thread="posix"
703                 libpthread="-lpthreadGC2"
704             elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
705                 thread="posix"
706                 libpthread="-lpthreadGC2 -lwsock32"
707                 define PTW32_STATIC_LIB
708             elif cc_check pthread.h "-lpthreadGC2 -lws2_32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
709                 thread="posix"
710                 libpthread="-lpthreadGC2 -lws2_32"
711                 define PTW32_STATIC_LIB
712             else
713                 # default to native threading if pthread-win32 is unavailable
714                 thread="win32"
715             fi
716             ;;
717         OPENBSD)
718             cc_check pthread.h -pthread && thread="posix" && libpthread="-pthread"
719             ;;
720         *)
721             cc_check pthread.h -lpthread && thread="posix" && libpthread="-lpthread"
722             ;;
723     esac
724 fi
725 if [ "$thread" = "posix" ]; then
726     LDFLAGS="$LDFLAGS $libpthread"
727     define HAVE_POSIXTHREAD
728     if [ "$SYS" = "LINUX" ] && cc_check sched.h "-D_GNU_SOURCE -Werror" "cpu_set_t p_aff; return CPU_COUNT(&p_aff);" ; then
729         define HAVE_CPU_COUNT
730     fi
731 fi
732 if [ "$thread" = "win32" ]; then
733     # cygwin does not support win32 threads
734     if [ "$SYS" = "WINDOWS" ]; then
735         define HAVE_WIN32THREAD
736     else
737         thread="no"
738     fi
739 fi
740 [ "$thread" != "no" ] && define HAVE_THREAD
741
742 if cc_check "math.h" "-Werror" "return log2f(2);" ; then
743     define HAVE_LOG2F
744 fi
745
746 if [ "$vis" = "yes" ] ; then
747     save_CFLAGS="$CFLAGS"
748     CFLAGS="$CFLAGS -I/usr/X11R6/include"
749     if cc_check "X11/Xlib.h" "-L/usr/X11R6/lib -lX11" "XOpenDisplay(0);" ; then
750         LDFLAGS="-L/usr/X11R6/lib -lX11 $LDFLAGS"
751         define HAVE_VISUALIZE
752     else
753         vis="no"
754         CFLAGS="$save_CFLAGS"
755    fi
756 fi
757
758 if [ "$swscale" = "auto" ] ; then
759     swscale="no"
760     if ${cross_prefix}pkg-config --exists libswscale 2>/dev/null; then
761         SWSCALE_LIBS="$SWSCALE_LIBS $(${cross_prefix}pkg-config --libs libswscale libavutil)"
762         SWSCALE_CFLAGS="$SWSCALE_CFLAGS $(${cross_prefix}pkg-config --cflags libswscale libavutil)"
763     fi
764     [ -z "$SWSCALE_LIBS" ] && SWSCALE_LIBS="-lswscale -lavutil"
765
766     if cc_check "libswscale/swscale.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "sws_init_context(0,0,0);" ; then
767         if cc_check "libavutil/pixdesc.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "av_get_pix_fmt_name(0);" ; then
768             swscale="yes"
769         else
770             echo "Warning: av_get_pix_fmt_name is missing from libavutil, update for swscale support"
771         fi
772     fi
773 fi
774
775 if [ "$lavf" = "auto" ] ; then
776     lavf="no"
777     if ${cross_prefix}pkg-config --exists libavformat libavcodec libswscale 2>/dev/null; then
778         LAVF_LIBS="$LAVF_LIBS $(${cross_prefix}pkg-config --libs libavformat libavcodec libavutil libswscale)"
779         LAVF_CFLAGS="$LAVF_CFLAGS $(${cross_prefix}pkg-config --cflags libavformat libavcodec libavutil libswscale)"
780     fi
781     if [ -z "$LAVF_LIBS" -a -z "$LAVF_CFLAGS" ]; then
782         LAVF_LIBS="-lavformat"
783         for lib in -lpostproc -lavcodec -lavcore -lswscale -lavutil -lm -lz -lbz2 $libpthread -lavifil32; do
784             cc_check "" $lib && LAVF_LIBS="$LAVF_LIBS $lib"
785         done
786     fi
787     LAVF_LIBS="-L. $LAVF_LIBS"
788     if cc_check libavformat/avformat.h "$LAVF_CFLAGS $LAVF_LIBS" "avformat_find_stream_info(0,0); avcodec_open2(0,0,0);" ; then
789         if [ "$swscale" = "yes" ]; then
790             lavf="yes"
791         else
792             echo "Warning: libavformat is not supported without swscale support"
793         fi
794     fi
795 fi
796
797 if [ "$ffms" = "auto" ] ; then
798     ffms_major="2"; ffms_minor="14"; ffms_micro="0"; ffms_bump="0"
799     ffms="no"
800
801     if ${cross_prefix}pkg-config --exists ffms2 2>/dev/null; then
802         FFMS2_LIBS="$FFMS2_LIBS $(${cross_prefix}pkg-config --libs ffms2)"
803         FFMS2_CFLAGS="$FFMS2_CFLAGS $(${cross_prefix}pkg-config --cflags ffms2)"
804     fi
805     [ -z "$FFMS2_LIBS" ] && FFMS2_LIBS="-lffms2"
806
807     if cc_check ffms.h "$FFMS2_CFLAGS $FFMS2_LIBS" "FFMS_DestroyVideoSource(0);" ; then
808         ffms="yes"
809     elif cc_check ffms.h "$FFMS2_CFLAGS $FFMS2_LIBS -lstdc++ $LAVF_LIBS" "FFMS_DestroyVideoSource(0);" ; then
810         ffms="yes"
811         FFMS2_LIBS="$FFMS2_LIBS -lstdc++ $LAVF_LIBS"
812     fi
813
814     error="ffms must be at least version $ffms_major.$ffms_minor.$ffms_micro.$ffms_bump"
815     if [ $ffms = "yes" ] && ! cpp_check "ffms.h" "$FFMS2_CFLAGS" "FFMS_VERSION >= (($ffms_major << 24) | ($ffms_minor << 16) | ($ffms_micro << 8) | $ffms_bump)" "$error"; then
816        ffms="no"
817        echo "Warning: $error"
818     fi
819     if [ "$ffms" = "yes" -a "$swscale" = "no" ]; then
820         echo "Warning: ffms is not supported without swscale support"
821         ffms="no"
822     fi
823 fi
824
825 if [ "$swscale" = "yes" ]; then
826     LDFLAGSCLI="$SWSCALE_LIBS $LDFLAGSCLI"
827     CFLAGS="$CFLAGS $SWSCALE_CFLAGS"
828     define HAVE_SWSCALE
829     if [ "$lavf" = "yes" ]; then
830         LDFLAGSCLI="$LAVF_LIBS $LDFLAGSCLI"
831         CFLAGS="$CFLAGS $LAVF_CFLAGS"
832         define HAVE_LAVF
833     fi
834     if [ "$ffms" = "yes" ]; then
835         LDFLAGSCLI="$FFMS2_LIBS $LDFLAGSCLI"
836         CFLAGS="$CFLAGS $FFMS2_CFLAGS"
837         define HAVE_FFMS
838     fi
839 fi
840
841 if [ "$gpac" = "auto" ] ; then
842     gpac="no"
843     cc_check "" -lz && GPAC_LIBS="-lgpac_static -lz" || GPAC_LIBS="-lgpac_static"
844     if [ "$SYS" = "WINDOWS" ] ; then
845         GPAC_LIBS="$GPAC_LIBS -lwinmm"
846     fi
847     if cc_check gpac/isomedia.h "$GPAC_LIBS" ; then
848         if cc_check gpac/isomedia.h "$GPAC_LIBS" "gf_isom_set_pixel_aspect_ratio(0,0,0,0,0);" ; then
849             gpac="yes"
850         else
851             echo "Warning: gpac is too old, update to 2007-06-21 UTC or later"
852         fi
853     fi
854 fi
855 if [ "$gpac" = "yes" ] ; then
856     define HAVE_GPAC
857     if cc_check gpac/isomedia.h "-Werror $GPAC_LIBS" "gf_malloc(1); gf_free(NULL);" ; then
858         define HAVE_GF_MALLOC
859     fi
860     LDFLAGSCLI="$GPAC_LIBS $LDFLAGSCLI"
861 fi
862
863 if [ "$avs" = "auto" ] ; then
864     avs="no"
865     # cygwin can use avisynth if it can use LoadLibrary
866     if [ $SYS = WINDOWS ] || ([ $SYS = CYGWIN ] && cc_check windows.h "" "LoadLibrary(0);") ; then
867         avs="yes"
868         define HAVE_AVS
869     fi
870 fi
871
872 cc_check "stdint.h" "" "uint32_t test_vec __attribute__ ((vector_size (16))) = {0,1,2,3};" && define HAVE_VECTOREXT
873
874 if [ "$pic" = "yes" ] ; then
875     CFLAGS="$CFLAGS -fPIC"
876     ASFLAGS="$ASFLAGS -DPIC"
877     # resolve textrels in the x86 asm
878     cc_check stdio.h "-shared -Wl,-Bsymbolic" && SOFLAGS="$SOFLAGS -Wl,-Bsymbolic"
879     [ $SYS = SunOS -a "$ARCH" = "X86" ] && SOFLAGS="$SOFLAGS -mimpure-text"
880 fi
881
882 if [ "$debug" != "yes" -a "$gprof" != "yes" ]; then
883     CFLAGS="$CFLAGS -fomit-frame-pointer"
884 fi
885
886 if [ "$strip" = "yes" ]; then
887     CFLAGS="$CFLAGS -s"
888     LDFLAGS="$LDFLAGS -s"
889 fi
890
891 if [ "$debug" = "yes" ]; then
892     CFLAGS="-O1 -g $CFLAGS"
893 elif [ $ARCH = ARM ]; then
894     # arm-gcc-4.2 produces incorrect output with -ffast-math
895     # and it doesn't save any speed anyway on 4.4, so disable it
896     CFLAGS="-O3 -fno-fast-math $CFLAGS"
897 else
898     CFLAGS="-O3 -ffast-math $CFLAGS"
899 fi
900
901 if cc_check '' -fno-tree-vectorize ; then
902     CFLAGS="$CFLAGS -fno-tree-vectorize"
903 fi
904
905 if [ $SYS = WINDOWS -a $ARCH = X86 -a $compiler = GNU ] ; then
906     # workaround gcc/ld bug with alignment of static variables/arrays that are initialized to zero
907     cc_check '' -fno-zero-initialized-in-bss && CFLAGS="$CFLAGS -fno-zero-initialized-in-bss"
908 fi
909
910 if cc_check "stdio.h" "" "fseeko(stdin,0,0);" ; then
911     define fseek fseeko
912     define ftell ftello
913 elif cc_check "stdio.h" "" "fseeko64(stdin,0,0);" ; then
914     define fseek fseeko64
915     define ftell ftello64
916 elif cc_check "stdio.h" "" "_fseeki64(stdin,0,0);" ; then
917     define fseek _fseeki64
918     define ftell _ftelli64
919 fi
920
921 if cc_check '' -Wshadow ; then
922     CFLAGS="-Wshadow $CFLAGS"
923 fi
924
925 if [ "$bit_depth" -gt "8" ]; then
926     define HIGH_BIT_DEPTH
927     ASFLAGS="$ASFLAGS -DHIGH_BIT_DEPTH"
928 fi
929
930 if [ "$chroma_format" != "all" ]; then
931     define CHROMA_FORMAT CHROMA_$chroma_format
932 fi
933
934 ASFLAGS="$ASFLAGS -DBIT_DEPTH=$bit_depth"
935
936 [ $gpl = yes ] && define HAVE_GPL && x264_gpl=1 || x264_gpl=0
937
938 [ $interlaced = yes ] && define HAVE_INTERLACED && x264_interlaced=1 || x264_interlaced=0
939
940 #define undefined vars as 0
941 for var in $CONFIG_HAVE; do
942     grep -q "HAVE_$var 1" config.h || define HAVE_$var 0
943 done
944
945 if [ $compiler = ICL ]; then
946     AR="xilib -nologo -out:"
947     DEPMM=-QMM
948     DEPMT=-QMT
949     HAVE_GETOPT_LONG=0
950     LD="xilink -out:"
951     LDFLAGS="-nologo -incremental:no $(icl_ldflags $LDFLAGS)"
952     LDFLAGSCLI="$(icl_ldflags $LDFLAGSCLI)"
953     LIBX264=libx264.lib
954     RANLIB=
955     STRIP=
956     if [ $debug = yes ]; then
957         LDFLAGS="-debug $LDFLAGS"
958         CFLAGS="-D_DEBUG $CFLAGS"
959     else
960         CFLAGS="-DNDEBUG $CFLAGS"
961     fi
962 else
963     AR="$AR rc "
964     DEPMM="-MM -g0"
965     DEPMT="-MT"
966     LD="$CC -o "
967     LIBX264=libx264.a
968 fi
969 if [ $compiler = GNU ]; then
970     PROF_GEN_CC="-fprofile-generate"
971     PROF_GEN_LD="-fprofile-generate"
972     PROF_USE_CC="-fprofile-use"
973     PROF_USE_LD="-fprofile-use"
974 else
975     CFLAGS="$(intel_cflags $CFLAGS)"
976     # icc does not define __SSE__ until SSE2 optimization and icl never defines it or _M_IX86_FP
977     [ \( $ARCH = X86_64 -o $ARCH = X86 \) -a $asm = yes ] && ! cpp_check "" "" "defined(__SSE__)" && define __SSE__
978     PROF_GEN_CC="${QPRE}prof-gen ${QPRE}prof-dir."
979     PROF_GEN_LD=
980     PROF_USE_CC="${QPRE}prof-use ${QPRE}prof-dir."
981     PROF_USE_LD=
982 fi
983
984 rm -f conftest*
985
986 # generate exported config file
987
988 config_chroma_format="X264_CSP_I$chroma_format"
989 [ "$config_chroma_format" == "X264_CSP_Iall" ] && config_chroma_format="0"
990 cat > x264_config.h << EOF
991 #define X264_BIT_DEPTH     $bit_depth
992 #define X264_GPL           $x264_gpl
993 #define X264_INTERLACED    $x264_interlaced
994 #define X264_CHROMA_FORMAT $config_chroma_format
995 EOF
996
997 # generate config files
998
999 cat > config.mak << EOF
1000 prefix=$prefix
1001 exec_prefix=$exec_prefix
1002 bindir=$bindir
1003 libdir=$libdir
1004 includedir=$includedir
1005 ARCH=$ARCH
1006 SYS=$SYS
1007 CC=$CC
1008 CFLAGS=$CFLAGS
1009 DEPMM=$DEPMM
1010 DEPMT=$DEPMT
1011 LD=$LD
1012 LDFLAGS=$LDFLAGS
1013 LIBX264=$LIBX264
1014 AR=$AR
1015 RANLIB=$RANLIB
1016 STRIP=$STRIP
1017 AS=$AS
1018 ASFLAGS=$ASFLAGS
1019 EXE=$EXE
1020 HAVE_GETOPT_LONG=$HAVE_GETOPT_LONG
1021 DEVNULL=$DEVNULL
1022 PROF_GEN_CC=$PROF_GEN_CC
1023 PROF_GEN_LD=$PROF_GEN_LD
1024 PROF_USE_CC=$PROF_USE_CC
1025 PROF_USE_LD=$PROF_USE_LD
1026 EOF
1027
1028 if [ $compiler = ICL ]; then
1029     echo '%.o: %.c' >> config.mak
1030     echo '      $(CC) $(CFLAGS) -c -Fo$@ $<' >> config.mak
1031 fi
1032
1033 if [ "$cli" = "yes" ]; then
1034     echo 'default: cli' >> config.mak
1035     echo 'install: install-cli' >> config.mak
1036 fi
1037
1038 if [ "$shared" = "yes" ]; then
1039     API=$(grep '#define X264_BUILD' < x264.h | cut -f 3 -d ' ')
1040     if [ "$SYS" = "WINDOWS" -o "$SYS" = "CYGWIN" ]; then
1041         echo "SONAME=libx264-$API.dll" >> config.mak
1042         if [ $compiler = ICL ]; then
1043             echo 'IMPLIBNAME=libx264.dll.lib' >> config.mak
1044             # GNU ld on windows defaults to exporting all global functions if there are no explicit __declspec(dllexport) declarations
1045             # MSVC link does not act similarly, so it is required to make an export definition out of x264.h and use it at link time
1046             echo "SOFLAGS=-dll -def:x264.def -implib:\$(IMPLIBNAME) $SOFLAGS" >> config.mak
1047             echo "EXPORTS" > x264.def
1048             grep "^\(int\|void\|x264_t\|extern\).*x264.*[\[(;]" x264.h | sed -e "s/.*\(x264.*\)[\[(].*/\1/;s/.*\(x264.*\);/\1/;s/open/open_$API/g" >> x264.def
1049         else
1050             echo 'IMPLIBNAME=libx264.dll.a' >> config.mak
1051             echo "SOFLAGS=-shared -Wl,--out-implib,\$(IMPLIBNAME) -Wl,--enable-auto-image-base $SOFLAGS" >> config.mak
1052         fi
1053     elif [ "$SYS" = "MACOSX" ]; then
1054         echo "SOSUFFIX=dylib" >> config.mak
1055         echo "SONAME=libx264.$API.dylib" >> config.mak
1056         echo "SOFLAGS=-shared -dynamiclib -Wl,-single_module -Wl,-read_only_relocs,suppress -install_name \$(DESTDIR)\$(libdir)/\$(SONAME) $SOFLAGS" >> config.mak
1057     elif [ "$SYS" = "SunOS" ]; then
1058         echo "SOSUFFIX=so" >> config.mak
1059         echo "SONAME=libx264.so.$API" >> config.mak
1060         echo "SOFLAGS=-shared -Wl,-h,\$(SONAME) $SOFLAGS" >> config.mak
1061     else
1062         echo "SOSUFFIX=so" >> config.mak
1063         echo "SONAME=libx264.so.$API" >> config.mak
1064         echo "SOFLAGS=-shared -Wl,-soname,\$(SONAME) $SOFLAGS" >> config.mak
1065     fi
1066     echo 'default: lib-shared' >> config.mak
1067     echo 'install: install-lib-shared' >> config.mak
1068 fi
1069
1070 if [ "$static" = "yes" ]; then
1071     echo 'default: lib-static' >> config.mak
1072     echo 'install: install-lib-static' >> config.mak
1073 fi
1074
1075 if [ "$cli_libx264" = "system" ] ; then
1076     if [ "$shared" = "yes" ]; then
1077         CLI_LIBX264='$(SONAME)'
1078     elif ${cross_prefix}pkg-config --exists x264 2>/dev/null; then
1079         LDFLAGSCLI="$LDFLAGSCLI $(${cross_prefix}pkg-config --libs x264)"
1080         CLI_LIBX264=
1081     else
1082         die "Can not find system libx264"
1083     fi
1084 else
1085     CLI_LIBX264='$(LIBX264)'
1086 fi
1087 echo "LDFLAGSCLI = $LDFLAGSCLI" >> config.mak
1088 echo "CLI_LIBX264 = $CLI_LIBX264" >> config.mak
1089
1090 ./version.sh >> x264_config.h
1091
1092 pclibs="-L$libdir -lx264 $libpthread"
1093
1094 cat > x264.pc << EOF
1095 prefix=$prefix
1096 exec_prefix=$exec_prefix
1097 libdir=$libdir
1098 includedir=$includedir
1099
1100 Name: x264
1101 Description: H.264 (MPEG4 AVC) encoder library
1102 Version: $(grep POINTVER < x264_config.h | sed -e 's/.* "//; s/".*//')
1103 Libs: $pclibs
1104 Cflags: -I$includedir
1105 EOF
1106
1107 filters="crop select_every"
1108 gpl_filters=""
1109 [ $swscale = yes ] && filters="resize $filters"
1110 [ $gpl = yes ] && filters="$filters $gpl_filters"
1111
1112 cat > conftest.log <<EOF
1113 platform:      $ARCH
1114 system:        $SYS
1115 cli:           $cli
1116 libx264:       $cli_libx264
1117 shared:        $shared
1118 static:        $static
1119 asm:           $asm
1120 interlaced:    $interlaced
1121 avs:           $avs
1122 lavf:          $lavf
1123 ffms:          $ffms
1124 gpac:          $gpac
1125 gpl:           $gpl
1126 thread:        $thread
1127 filters:       $filters
1128 debug:         $debug
1129 gprof:         $gprof
1130 strip:         $strip
1131 PIC:           $pic
1132 visualize:     $vis
1133 bit depth:     $bit_depth
1134 chroma format: $chroma_format
1135 EOF
1136
1137 echo >> config.log
1138 cat conftest.log >> config.log
1139 cat conftest.log
1140 rm conftest.log
1141
1142 echo
1143 echo "You can run 'make' or 'make fprofiled' now."
1144