Eliminate some compiler warnings on BSD
[x264/x264-sandbox.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   --extra-rcflags=ERCFLAGS add ERCFLAGS to RCFLAGS
22
23 Configuration options:
24   --disable-cli            disable cli
25   --system-libx264         use system libx264 instead of internal
26   --enable-shared          build shared library
27   --enable-static          build static library
28   --disable-opencl         disable OpenCL features
29   --disable-gpl            disable GPL-only features
30   --disable-thread         disable multithreaded encoding
31   --disable-win32thread    disable win32threads (windows only)
32   --disable-interlaced     disable interlaced encoding support
33   --bit-depth=BIT_DEPTH    set output bit depth (8-10) [8]
34   --chroma-format=FORMAT   output chroma format (420, 422, 444, all) [all]
35
36 Advanced options:
37   --disable-asm            disable platform-specific assembly optimizations
38   --enable-debug           add -g
39   --enable-gprof           add -pg
40   --enable-strip           add -s
41   --enable-pic             build position-independent code
42
43 Cross-compilation:
44   --host=HOST              build programs to run on HOST
45   --cross-prefix=PREFIX    use PREFIX for compilation tools
46   --sysroot=SYSROOT        root of cross-build tree
47
48 External library support:
49   --disable-avs            disable avisynth support
50   --disable-swscale        disable swscale support
51   --disable-lavf           disable libavformat support
52   --disable-ffms           disable ffmpegsource support
53   --disable-gpac           disable gpac support
54   --disable-lsmash         disable lsmash support
55
56 EOF
57 exit 1
58 fi
59
60 log_check() {
61     echo -n "checking $1... " >> config.log
62 }
63
64 log_ok() {
65     echo "yes" >> config.log
66 }
67
68 log_fail() {
69     echo "no" >> config.log
70 }
71
72 log_msg() {
73     echo "$1" >> config.log
74 }
75
76 cc_cflags() {
77     # several non gcc compilers issue an incredibly large number of warnings on high warning levels,
78     # suppress them by reducing the warning level rather than having to use #pragmas
79     for arg in $*; do
80         [[ "$arg" = -falign-loops* ]] && arg=
81         [ "$arg" = -fno-tree-vectorize ] && arg=
82         [ "$arg" = -Wshadow ] && arg=
83         [ "$arg" = -Wno-maybe-uninitialized ] && arg=
84         [[ "$arg" = -mpreferred-stack-boundary* ]] && arg=
85         [[ "$arg" = -l* ]] && arg=
86         [[ "$arg" = -L* ]] && arg=
87         if [ $compiler_style = MS ]; then
88             [ "$arg" = -ffast-math ] && arg="-fp:fast"
89             [ "$arg" = -Wall ] && arg=
90             [ "$arg" = -Werror ] && arg="-W3 -WX"
91             [ "$arg" = -g ] && arg=-Z7
92             [ "$arg" = -fomit-frame-pointer ] && arg=
93             [ "$arg" = -s ] && arg=
94             [ "$arg" = -fPIC ] && arg=
95         else
96             [ "$arg" = -ffast-math ] && arg=
97             [ "$arg" = -Wall ] && arg=
98             [ "$arg" = -Werror ] && arg="-w3 -Werror"
99         fi
100         [ $compiler = CL -a "$arg" = -O3 ] && arg=-O2
101
102         [ -n "$arg" ] && echo -n "$arg "
103     done
104 }
105
106 cl_ldflags() {
107     for arg in $*; do
108         arg=${arg/LIBPATH/libpath}
109         [ "${arg#-libpath:}" == "$arg" -a "${arg#-l}" != "$arg" ] && arg=${arg#-l}.lib
110         [ "${arg#-L}" != "$arg" ] && arg=-libpath:${arg#-L}
111         [ "$arg" = -Wl,--large-address-aware ] && arg=-largeaddressaware
112         [ "$arg" = -s ] && arg=
113         [ "$arg" = -Wl,-Bsymbolic ] && arg=
114         [ "$arg" = -fno-tree-vectorize ] && arg=
115         [ "$arg" = -Werror ] && arg=
116         [ "$arg" = -Wshadow ] && arg=
117         [ "$arg" = -Wmaybe-uninitialized ] && arg=
118         [[ "$arg" = -Qdiag-error* ]] && arg=
119
120         arg=${arg/pthreadGC/pthreadVC}
121         [ "$arg" = avifil32.lib ] && arg=vfw32.lib
122         [ "$arg" = gpac_static.lib ] && arg=libgpac_static.lib
123         [ "$arg" = x264.lib ] && arg=libx264.lib
124
125         [ -n "$arg" ] && echo -n "$arg "
126     done
127 }
128
129 cc_check() {
130     if [ -z "$3" ]; then
131         if [ -z "$1$2" ]; then
132             log_check "whether $CC works"
133         elif [ -z "$1" ]; then
134             log_check "for $2"
135         else
136             log_check "for $1"
137         fi
138     elif [ -z "$1" ]; then
139         if [ -z "$2" ]; then
140             log_check "whether $CC supports $3"
141         else
142             log_check "whether $CC supports $3 with $2"
143         fi
144     else
145         log_check "for $3 in $1";
146     fi
147     rm -f conftest.c
148     for arg in $1; do
149         echo "#include <$arg>" >> conftest.c
150     done
151     echo "int main (void) { $3 return 0; }" >> conftest.c
152     if [ $compiler_style = MS ]; then
153         cc_cmd="$CC conftest.c $(cc_cflags $CFLAGS $CHECK_CFLAGS $2) -link $(cl_ldflags $2 $LDFLAGSCLI $LDFLAGS)"
154     else
155         cc_cmd="$CC conftest.c $CFLAGS $CHECK_CFLAGS $2 $LDFLAGSCLI $LDFLAGS -o conftest"
156     fi
157     if $cc_cmd >conftest.log 2>&1; then
158         res=$?
159         log_ok
160     else
161         res=$?
162         log_fail
163         log_msg "Failed commandline was:"
164         log_msg "--------------------------------------------------"
165         log_msg "$cc_cmd"
166         cat conftest.log >> config.log
167         log_msg "--------------------------------------------------"
168         log_msg "Failed program was:"
169         log_msg "--------------------------------------------------"
170         cat conftest.c >> config.log
171         log_msg "--------------------------------------------------"
172     fi
173     return $res
174 }
175
176 cpp_check() {
177     log_check "whether $3 is true"
178     rm -f conftest.c
179     for arg in $1; do
180         echo "#include <$arg>" >> conftest.c
181     done
182     echo -e "#if !($3) \n#error $4 \n#endif " >> conftest.c
183     if [ $compiler_style = MS ]; then
184         cpp_cmd="$CC conftest.c $(cc_cflags $CFLAGS $2) -P"
185     else
186         cpp_cmd="$CC conftest.c $CFLAGS $2 -E -o conftest"
187     fi
188     if $cpp_cmd >conftest.log 2>&1; then
189         res=$?
190         log_ok
191     else
192         res=$?
193         log_fail
194         log_msg "--------------------------------------------------"
195         cat conftest.log >> config.log
196         log_msg "--------------------------------------------------"
197         log_msg "Failed program was:"
198         log_msg "--------------------------------------------------"
199         cat conftest.c >> config.log
200         log_msg "--------------------------------------------------"
201     fi
202     return $res
203 }
204
205 as_check() {
206     log_check "whether $AS supports $1"
207     echo "$1" > conftest$AS_EXT
208     as_cmd="$AS conftest$AS_EXT $ASFLAGS $2 -o conftest.o"
209     if $as_cmd >conftest.log 2>&1; then
210         res=$?
211         log_ok
212     else
213         res=$?
214         log_fail
215         log_msg "Failed commandline was:"
216         log_msg "--------------------------------------------------"
217         log_msg "$as_cmd"
218         cat conftest.log >> config.log
219         log_msg "--------------------------------------------------"
220         log_msg "Failed program was:"
221         log_msg "--------------------------------------------------"
222         cat conftest$AS_EXT >> config.log
223         log_msg "--------------------------------------------------"
224     fi
225     return $res
226 }
227
228 rc_check() {
229     log_check "whether $RC works"
230     echo "$1" > conftest.rc
231     if [ $compiler = GNU ]; then
232         rc_cmd="$RC $RCFLAGS -o conftest.o conftest.rc"
233     else
234         rc_cmd="$RC $RCFLAGS -foconftest.o conftest.rc"
235     fi
236     if $rc_cmd >conftest.log 2>&1; then
237         res=$?
238         log_ok
239     else
240         res=$?
241         log_fail
242         log_msg "Failed commandline was:"
243         log_msg "--------------------------------------------------"
244         log_msg "$rc_cmd"
245         cat conftest.log >> config.log
246         log_msg "--------------------------------------------------"
247         log_msg "Failed program was:"
248         log_msg "--------------------------------------------------"
249         cat conftest.rc >> config.log
250         log_msg "--------------------------------------------------"
251     fi
252     return $res
253 }
254
255 define() {
256     echo "#define $1$([ -n "$2" ] && echo " $2" || echo " 1")" >> config.h
257 }
258
259 die() {
260     log_msg "DIED: $@"
261     echo "$@"
262     exit 1
263 }
264
265 configure_system_override() {
266     log_check "system libx264 configuration"
267     x264_config_path="$1/x264_config.h"
268     if [ -e "$x264_config_path" ]; then
269         res=$?
270         log_ok
271         arg="$(grep '#define X264_GPL ' $x264_config_path | sed -e 's/#define X264_GPL *//; s/ *$//')"
272         if [ -n "$arg" ]; then
273             [ "$arg" = 0 ] && arg="no" || arg="yes"
274             [ "$arg" != "$gpl" ] && die "Incompatible license with system libx264"
275         fi
276         arg="$(grep '#define X264_BIT_DEPTH ' $x264_config_path | sed -e 's/#define X264_BIT_DEPTH *//; s/ *$//')"
277         if [ -n "$arg" ]; then
278             if [ "$arg" != "$bit_depth" ]; then
279                 echo "Override output bit depth with system libx264 configuration"
280                 bit_depth="$arg"
281             fi
282         fi
283         arg="$(grep '#define X264_CHROMA_FORMAT ' $x264_config_path | sed -e 's/#define X264_CHROMA_FORMAT *//; s/ *$//')"
284         if [ -n "$arg" ]; then
285             [ "$arg" = 0 ] && arg="all" || arg="${arg#X264_CSP_I}"
286             if [ "$arg" != "$chroma_format" ]; then
287                 echo "Override output chroma format with system libx264 configuration"
288                 chroma_format="$arg"
289             fi
290         fi
291         arg="$(grep '#define X264_INTERLACED ' $x264_config_path | sed -e 's/#define X264_INTERLACED *//; s/ *$//')"
292         if [ -n "$arg" ]; then
293             [ "$arg" = 0 ] && arg="no" || arg="yes"
294             if [ "$arg" != "$interlaced" ]; then
295                 echo "Override interlaced encoding support with system libx264 configuration"
296                 interlaced="$arg"
297             fi
298         fi
299     else
300         res=$?
301         log_fail
302         log_msg "Failed search path was: $x264_config_path"
303     fi
304     return $res
305 }
306
307 rm -f x264_config.h config.h config.mak config.log x264.pc x264.def conftest*
308
309 # Construct a path to the specified directory relative to the working directory
310 relative_path() {
311     local base="${PWD%/}"
312     local path="$(cd "$1" >/dev/null; printf '%s/.' "${PWD%/}")"
313     local up=''
314
315     while [[ $path != "$base/"* ]]; do
316         base="${base%/*}"
317         up="../$up"
318     done
319
320     dirname "$up${path#"$base/"}"
321 }
322
323 SRCPATH="$(relative_path "$(dirname "$0")")"
324 echo "$SRCPATH" | grep -q ' ' && die "Out of tree builds are impossible with whitespace in source path."
325 [ -e "$SRCPATH/config.h" -o -e "$SRCPATH/x264_config.h" ] && die "Out of tree builds are impossible with config.h/x264_config.h in source dir."
326
327 prefix='/usr/local'
328 exec_prefix='${prefix}'
329 bindir='${exec_prefix}/bin'
330 libdir='${exec_prefix}/lib'
331 includedir='${prefix}/include'
332 DEVNULL='/dev/null'
333
334 cli="yes"
335 cli_libx264="internal"
336 shared="no"
337 static="no"
338 avs="auto"
339 lavf="auto"
340 ffms="auto"
341 gpac="auto"
342 lsmash="auto"
343 mp4="no"
344 gpl="yes"
345 thread="auto"
346 swscale="auto"
347 asm="auto"
348 interlaced="yes"
349 debug="no"
350 gprof="no"
351 strip="no"
352 pic="no"
353 bit_depth="8"
354 chroma_format="all"
355 compiler="GNU"
356 compiler_style="GNU"
357 opencl="yes"
358
359 CFLAGS="$CFLAGS -Wall -I. -I\$(SRCPATH)"
360 LDFLAGS="$LDFLAGS"
361 LDFLAGSCLI="$LDFLAGSCLI"
362 ASFLAGS="$ASFLAGS -I. -I\$(SRCPATH)"
363 RCFLAGS="$RCFLAGS"
364 CHECK_CFLAGS=""
365 HAVE_GETOPT_LONG=1
366 cross_prefix=""
367
368 EXE=""
369 AS_EXT=".S"
370 NL="
371 "
372
373 # list of all preprocessor HAVE values we can define
374 CONFIG_HAVE="MALLOC_H ALTIVEC ALTIVEC_H MMX ARMV6 ARMV6T2 NEON BEOSTHREAD POSIXTHREAD WIN32THREAD THREAD LOG2F SWSCALE \
375              LAVF FFMS GPAC AVS GPL VECTOREXT INTERLACED CPU_COUNT OPENCL THP LSMASH X86_INLINE_ASM AS_FUNC INTEL_DISPATCHER \
376              MSA MMAP WINRT"
377
378 # parse options
379
380 for opt do
381     optarg="${opt#*=}"
382     case "$opt" in
383         --prefix=*)
384             prefix="$optarg"
385             ;;
386         --exec-prefix=*)
387             exec_prefix="$optarg"
388             ;;
389         --bindir=*)
390             bindir="$optarg"
391             ;;
392         --libdir=*)
393             libdir="$optarg"
394             ;;
395         --includedir=*)
396             includedir="$optarg"
397             ;;
398         --disable-cli)
399             cli="no"
400             ;;
401         --system-libx264)
402             cli_libx264="system"
403             ;;
404         --enable-shared)
405             shared="yes"
406             ;;
407         --enable-static)
408             static="yes"
409             ;;
410         --disable-asm)
411             asm="no"
412             ;;
413         --disable-interlaced)
414             interlaced="no"
415             ;;
416         --disable-avs)
417             avs="no"
418             ;;
419         --disable-lavf)
420             lavf="no"
421             ;;
422         --disable-ffms)
423             ffms="no"
424             ;;
425         --disable-gpac)
426             gpac="no"
427             ;;
428         --disable-lsmash)
429             lsmash="no"
430             ;;
431         --disable-gpl)
432             gpl="no"
433             ;;
434         --extra-asflags=*)
435             ASFLAGS="$ASFLAGS $optarg"
436             ;;
437         --extra-cflags=*)
438             CFLAGS="$CFLAGS $optarg"
439             ;;
440         --extra-ldflags=*)
441             LDFLAGS="$LDFLAGS $optarg"
442             ;;
443         --extra-rcflags=*)
444             RCFLAGS="$RCFLAGS $optarg"
445             ;;
446         --disable-thread)
447             thread="no"
448             ;;
449         --disable-win32thread)
450             [ "$thread" != "no" ] && thread="posix"
451             ;;
452         --disable-swscale)
453             swscale="no"
454             ;;
455         --enable-debug)
456             debug="yes"
457             ;;
458         --enable-gprof)
459             CFLAGS="$CFLAGS -pg"
460             LDFLAGS="$LDFLAGS -pg"
461             gprof="yes"
462             ;;
463         --enable-strip)
464             strip="yes"
465             ;;
466         --enable-pic)
467             pic="yes"
468             ;;
469         --host=*)
470             host="$optarg"
471             ;;
472         --disable-opencl)
473             opencl="no"
474             ;;
475         --cross-prefix=*)
476             cross_prefix="$optarg"
477             ;;
478         --sysroot=*)
479             CFLAGS="$CFLAGS --sysroot=$optarg"
480             LDFLAGS="$LDFLAGS --sysroot=$optarg"
481             ;;
482         --bit-depth=*)
483             bit_depth="$optarg"
484             if [ "$bit_depth" -lt "8" -o "$bit_depth" -gt "10" ]; then
485                 echo "Supplied bit depth must be in range [8,10]."
486                 exit 1
487             fi
488             bit_depth=`expr $bit_depth + 0`
489             ;;
490         --chroma-format=*)
491             chroma_format="$optarg"
492             if [ $chroma_format != "420" -a $chroma_format != "422" -a $chroma_format != "444" -a $chroma_format != "all" ]; then
493                 echo "Supplied chroma format must be 420, 422, 444 or all."
494                 exit 1
495             fi
496             ;;
497         *)
498             echo "Unknown option $opt, ignored"
499             ;;
500     esac
501 done
502
503 [ "$cli" = "no" -a "$shared" = "no" -a "$static" = "no" ] && die "Nothing to build. Enable cli, shared or static."
504
505 CC="${CC-${cross_prefix}gcc}"
506 AR="${AR-${cross_prefix}ar}"
507 RANLIB="${RANLIB-${cross_prefix}ranlib}"
508 STRIP="${STRIP-${cross_prefix}strip}"
509 INSTALL="${INSTALL-install}"
510
511 if [ "x$host" = x ]; then
512     host=`${SRCPATH}/config.guess`
513 fi
514 # normalize a triplet into a quadruplet
515 host=`${SRCPATH}/config.sub $host`
516
517 # split $host
518 host_cpu="${host%%-*}"
519 host="${host#*-}"
520 host_vendor="${host%%-*}"
521 host_os="${host#*-}"
522
523 trap 'rm -f conftest*' EXIT
524
525 # test for use of compilers that require specific handling
526 cc_base=`basename "$CC"`
527 QPRE="-"
528 if [[ $host_os = mingw* || $host_os = cygwin* ]]; then
529     if [[ "$cc_base" = icl || "$cc_base" = icl[\ .]* ]]; then
530         # Windows Intel Compiler creates dependency generation with absolute Windows paths, Cygwin's make does not support Windows paths.
531         [[ $host_os = cygwin* ]] && die "Windows Intel Compiler support requires MSYS"
532         compiler=ICL
533         compiler_style=MS
534         CFLAGS="$CFLAGS -Qstd=c99 -nologo -Qms0 -DHAVE_STRING_H -I\$(SRCPATH)/extras"
535         QPRE="-Q"
536         `$CC 2>&1 | grep -q IA-32` && host_cpu=i486
537         `$CC 2>&1 | grep -q "Intel(R) 64"` && host_cpu=x86_64
538         cpp_check "" "" "_MSC_VER >= 1400" || die "Windows Intel Compiler support requires Visual Studio 2005 or newer"
539         if cc_check '' -Qdiag-error:10006,10157 ; then
540             CHECK_CFLAGS="$CHECK_CFLAGS -Qdiag-error:10006,10157"
541         fi
542     elif [[ "$cc_base" = cl || "$cc_base" = cl[\ .]* ]]; then
543         # Standard Microsoft Visual Studio
544         compiler=CL
545         compiler_style=MS
546         CFLAGS="$CFLAGS -nologo -GS- -DHAVE_STRING_H -I\$(SRCPATH)/extras"
547         `$CC 2>&1 | grep -q 'x86'` && host_cpu=i486
548         `$CC 2>&1 | grep -q 'x64'` && host_cpu=x86_64
549         cpp_check '' '' '_MSC_VER > 1800 || (_MSC_VER == 1800 && _MSC_FULL_VER >= 180030324)' || die "Microsoft Visual Studio support requires Visual Studio 2013 Update 2 or newer"
550     else
551         # MinGW uses broken pre-VS2015 Microsoft printf functions unless it's told to use the POSIX ones.
552         CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
553     fi
554 else
555     if [[ "$cc_base" = icc || "$cc_base" = icc[\ .]* ]]; then
556         AR="xiar"
557         compiler=ICC
558     fi
559 fi
560
561 if [[ "$cc_base" = clang || "$cc_base" = clang[\ .]* ]]; then
562     if cc_check '' -Werror=unknown-warning-option ; then
563         CHECK_CFLAGS="$CHECK_CFLAGS -Werror=unknown-warning-option"
564     fi
565 fi
566
567 libm=""
568 case $host_os in
569     beos*)
570         SYS="BEOS"
571         define HAVE_MALLOC_H
572         ;;
573     darwin*)
574         SYS="MACOSX"
575         libm="-lm"
576         if [ "$pic" = "no" ]; then
577             cc_check "" -mdynamic-no-pic && CFLAGS="$CFLAGS -mdynamic-no-pic"
578         fi
579         ;;
580     freebsd*)
581         SYS="FREEBSD"
582         libm="-lm"
583         ;;
584     kfreebsd*-gnu)
585         SYS="FREEBSD"
586         define HAVE_MALLOC_H
587         libm="-lm"
588         ;;
589     netbsd*)
590         SYS="NETBSD"
591         libm="-lm"
592         ;;
593     openbsd*)
594         SYS="OPENBSD"
595         libm="-lm"
596         ;;
597     *linux*)
598         SYS="LINUX"
599         define HAVE_MALLOC_H
600         libm="-lm"
601         ;;
602     gnu*)
603         SYS="HURD"
604         define HAVE_MALLOC_H
605         libm="-lm"
606         ;;
607     cygwin*|mingw*|msys*)
608         EXE=".exe"
609         if [[ $host_os = cygwin* ]] && cpp_check "" "" "defined(__CYGWIN__)" ; then
610             SYS="CYGWIN"
611             define HAVE_MALLOC_H
612         else
613             SYS="WINDOWS"
614             DEVNULL="NUL"
615             LDFLAGSCLI="$LDFLAGSCLI -lshell32"
616             [ $compiler = GNU ] && RC="${RC-${cross_prefix}windres}" || RC="${RC-rc}"
617         fi
618         ;;
619     sunos*|solaris*)
620         SYS="SunOS"
621         define HAVE_MALLOC_H
622         libm="-lm"
623         if cc_check "" /usr/lib/64/values-xpg6.o; then
624             LDFLAGS="$LDFLAGS /usr/lib/64/values-xpg6.o"
625         else
626             LDFLAGS="$LDFLAGS /usr/lib/values-xpg6.o"
627         fi
628         if test -x /usr/ucb/install ; then
629             INSTALL=/usr/ucb/install
630         elif test -x /usr/bin/ginstall ; then
631             # OpenSolaris
632             INSTALL=/usr/bin/ginstall
633         elif test -x /usr/gnu/bin/install ; then
634             # OpenSolaris
635             INSTALL=/usr/gnu/bin/install
636         fi
637         HAVE_GETOPT_LONG=0
638         ;;
639     *qnx*)
640         SYS="QNX"
641         define HAVE_MALLOC_H
642         libm="-lm"
643         HAVE_GETOPT_LONG=0
644         CFLAGS="$CFLAGS -I\$(SRCPATH)/extras"
645         ;;
646     *haiku*)
647         SYS="HAIKU"
648         ;;
649     *)
650         die "Unknown system $host, edit the configure"
651         ;;
652 esac
653
654 LDFLAGS="$LDFLAGS $libm"
655
656 stack_alignment=4
657 case $host_cpu in
658     i*86)
659         ARCH="X86"
660         AS="${AS-yasm}"
661         AS_EXT=".asm"
662         ASFLAGS="$ASFLAGS -DARCH_X86_64=0 -I\$(SRCPATH)/common/x86/"
663         if [ $compiler = GNU ]; then
664             if [[ "$asm" == auto && "$CFLAGS" != *-march* ]]; then
665                 CFLAGS="$CFLAGS -march=i686"
666             fi
667             if [[ "$asm" == auto && "$CFLAGS" != *-mfpmath* ]]; then
668                 CFLAGS="$CFLAGS -mfpmath=sse -msse -msse2"
669             fi
670             CFLAGS="-m32 $CFLAGS"
671             LDFLAGS="-m32 $LDFLAGS"
672         fi
673         if [ "$SYS" = MACOSX ]; then
674             ASFLAGS="$ASFLAGS -f macho32 -DPREFIX"
675         elif [ "$SYS" = WINDOWS -o "$SYS" = CYGWIN ]; then
676             ASFLAGS="$ASFLAGS -f win32 -DPREFIX"
677             LDFLAGS="$LDFLAGS -Wl,--large-address-aware"
678             [ $compiler = GNU ] && LDFLAGS="$LDFLAGS -Wl,--dynamicbase,--nxcompat,--tsaware"
679             [ $compiler = GNU ] && RCFLAGS="--target=pe-i386 $RCFLAGS"
680         else
681             ASFLAGS="$ASFLAGS -f elf32"
682         fi
683         ;;
684     x86_64)
685         ARCH="X86_64"
686         AS="${AS-yasm}"
687         AS_EXT=".asm"
688         ASFLAGS="$ASFLAGS -DARCH_X86_64=1 -I\$(SRCPATH)/common/x86/"
689         stack_alignment=16
690         [ $compiler = GNU ] && CFLAGS="-m64 $CFLAGS" && LDFLAGS="-m64 $LDFLAGS"
691         if [ "$SYS" = MACOSX ]; then
692             ASFLAGS="$ASFLAGS -f macho64 -DPIC -DPREFIX"
693             if cc_check '' "-arch x86_64"; then
694                 CFLAGS="$CFLAGS -arch x86_64"
695                 LDFLAGS="$LDFLAGS -arch x86_64"
696             fi
697         elif [ "$SYS" = WINDOWS -o "$SYS" = CYGWIN ]; then
698             ASFLAGS="$ASFLAGS -f win64"
699             if [ $compiler = GNU ]; then
700                 # only the GNU toolchain is inconsistent in prefixing function names with _
701                 cc_check "" "-S" && grep -q "_main:" conftest && ASFLAGS="$ASFLAGS -DPREFIX"
702                 cc_check "" "-Wl,--high-entropy-va" && LDFLAGS="$LDFLAGS -Wl,--high-entropy-va"
703                 LDFLAGS="$LDFLAGS -Wl,--dynamicbase,--nxcompat,--tsaware"
704                 LDFLAGSCLI="$LDFLAGSCLI -Wl,--image-base,0x140000000"
705                 SOFLAGS="$SOFLAGS -Wl,--image-base,0x180000000"
706                 RCFLAGS="--target=pe-x86-64 $RCFLAGS"
707             fi
708         else
709             ASFLAGS="$ASFLAGS -f elf64"
710         fi
711         ;;
712     powerpc*)
713         ARCH="PPC"
714         if [ $asm = auto ] ; then
715             define HAVE_ALTIVEC
716             AS="${AS-${CC}}"
717             AS_EXT=".c"
718             if [ $SYS = MACOSX ] ; then
719                 CFLAGS="$CFLAGS -faltivec -fastf -mcpu=G4"
720             else
721                 CFLAGS="$CFLAGS -maltivec -mabi=altivec"
722                 define HAVE_ALTIVEC_H
723             fi
724         fi
725         ;;
726     sparc)
727         ARCH="SPARC"
728         ;;
729     mips*)
730         ARCH="MIPS"
731         AS="${AS-${CC}}"
732         AS_EXT=".c"
733         ;;
734     arm*)
735         ARCH="ARM"
736         if [ "$SYS" = MACOSX ] ; then
737             AS="${AS-${SRCPATH}/tools/gas-preprocessor.pl -arch arm -- ${CC}}"
738             ASFLAGS="$ASFLAGS -DPREFIX -DPIC"  # apple's ld doesn't support movw/movt relocations at all
739             # build for armv7 by default
740             if ! echo $CFLAGS | grep -Eq '\-arch' ; then
741                 CFLAGS="$CFLAGS -arch armv7"
742                 LDFLAGS="$LDFLAGS -arch armv7"
743             fi
744         else
745             AS="${AS-${CC}}"
746         fi
747         ;;
748     aarch64)
749         ARCH="AARCH64"
750         stack_alignment=16
751         if [ "$SYS" = MACOSX ] ; then
752             AS="${AS-${SRCPATH}/tools/gas-preprocessor.pl -arch aarch64 -- ${CC}}"
753             ASFLAGS="$ASFLAGS -DPREFIX"
754         else
755             AS="${AS-${CC}}"
756         fi
757         ;;
758     s390|s390x)
759         ARCH="S390"
760         ;;
761     hppa*|parisc*)
762         ARCH="PARISC"
763         ;;
764     ia64)
765         ARCH="IA64"
766         ;;
767     alpha*)
768         ARCH="ALPHA"
769         ;;
770     *)
771         ARCH="$(echo $host_cpu | tr a-z A-Z)"
772         ;;
773 esac
774
775 if [ $SYS = WINDOWS ]; then
776     if ! rc_check "0 RCDATA {0}" ; then
777         RC=""
778     fi
779
780     if cpp_check "winapifamily.h" "" "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" ; then
781         [ $compiler = CL ] || die "WinRT requires MSVC"
782         define HAVE_WINRT
783         CFLAGS="$CFLAGS -MD"
784         LDFLAGS="$LDFLAGS -appcontainer"
785         if ! cpp_check "" "" "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0603" ; then
786             die "_WIN32_WINNT must be defined to at least 0x0603 (Windows 8.1) for WinRT"
787         elif cpp_check "" "" "_WIN32_WINNT >= 0x0A00" ; then
788             # Universal Windows Platform (Windows 10)
789             LDFLAGS="$LDFLAGS -lWindowsApp"
790         fi
791         cli="no"
792         opencl="no"
793     fi
794 fi
795
796 log_msg "x264 configure script"
797 if [ -n "$*" ]; then
798     msg="Command line options:"
799     for i in $@; do
800         msg="$msg \"$i\""
801     done
802     log_msg "$msg"
803 fi
804 log_msg ""
805
806 # check requirements
807
808 cc_check || die "No working C compiler found."
809
810 if [ $compiler_style = GNU ]; then
811     if cc_check '' -std=gnu99 'for( int i = 0; i < 9; i++ );' ; then
812         CFLAGS="$CFLAGS -std=gnu99 -D_GNU_SOURCE"
813     elif cc_check '' -std=c99 'for( int i = 0; i < 9; i++ );' ; then
814         CFLAGS="$CFLAGS -std=c99 -D_POSIX_C_SOURCE=200112L -D_BSD_SOURCE"
815     elif ! cc_check '' '' 'for( int i = 0; i < 9; i++ );' ; then
816         die "C99 compiler is needed for compilation."
817     fi
818 fi
819
820 if [ $shared = yes -a \( $ARCH = "X86_64" -o $ARCH = "PPC" -o $ARCH = "ALPHA" -o $ARCH = "ARM" -o $ARCH = "IA64" -o $ARCH = "PARISC" -o $ARCH = "MIPS" -o $ARCH = "AARCH64" \) ] ; then
821     pic="yes"
822 fi
823
824 if [ $compiler = GNU -a \( $ARCH = X86 -o $ARCH = X86_64 \) ] ; then
825     if cc_check '' -mpreferred-stack-boundary=5 ; then
826         CFLAGS="$CFLAGS -mpreferred-stack-boundary=5"
827         stack_alignment=32
828     elif [ $stack_alignment -lt 16 ] && cc_check '' -mpreferred-stack-boundary=4 ; then
829         CFLAGS="$CFLAGS -mpreferred-stack-boundary=4"
830         stack_alignment=16
831     fi
832 elif [ $compiler = ICC -a $ARCH = X86 ]; then
833     # icc on linux has various degrees of mod16 stack support
834     if [ $SYS = LINUX ]; then
835         # >= 12 defaults to a mod16 stack
836         if cpp_check "" "" "__INTEL_COMPILER >= 1200" ; then
837             stack_alignment=16
838         # 11 <= x < 12 is capable of keeping a mod16 stack, but defaults to not doing so.
839         elif cpp_check "" "" "__INTEL_COMPILER >= 1100" ; then
840             CFLAGS="$CFLAGS -falign-stack=assume-16-byte"
841             stack_alignment=16
842         fi
843         # < 11 is completely incapable of keeping a mod16 stack
844     fi
845 fi
846
847 if [ $asm = auto -a \( $ARCH = X86 -o $ARCH = X86_64 \) ] ; then
848     if ! as_check "vpmovzxwd ymm0, xmm0" ; then
849         VER=`($AS --version || echo no assembler) 2>/dev/null | head -n 1`
850         echo "Found $VER"
851         echo "Minimum version is yasm-1.2.0"
852         echo "If you really want to compile without asm, configure with --disable-asm."
853         exit 1
854     fi
855     cc_check '' '' '__asm__("pabsw %xmm0, %xmm0");' && define HAVE_X86_INLINE_ASM
856     ASFLAGS="$ASFLAGS -Worphan-labels"
857     define HAVE_MMX
858 fi
859
860 if [ $asm = auto -a $ARCH = ARM ] ; then
861     # set flags so neon is built by default
862     echo $CFLAGS | grep -Eq '(-mcpu|-march|-mfpu)' || CFLAGS="$CFLAGS -mcpu=cortex-a8 -mfpu=neon"
863
864     if  cc_check '' '' '__asm__("rev ip, ip");' ; then      define HAVE_ARMV6
865         cc_check '' '' '__asm__("movt r0, #0");'         && define HAVE_ARMV6T2
866         cc_check '' '' '__asm__("vadd.i16 q0, q0, q0");' && define HAVE_NEON
867         ASFLAGS="$ASFLAGS -c"
868     else
869         echo "You specified a pre-ARMv6 or Thumb-1 CPU in your CFLAGS."
870         echo "If you really want to run on such a CPU, configure with --disable-asm."
871         exit 1
872     fi
873 fi
874
875 if [ $asm = auto -a $ARCH = AARCH64 ] ; then
876     if  cc_check '' '' '__asm__("cmeq v0.8h, v0.8h, #0");' ; then define HAVE_NEON
877         ASFLAGS="$ASFLAGS -c"
878     else
879         echo "no NEON support, try adding -mfpu=neon to CFLAGS"
880         echo "If you really want to run on such a CPU, configure with --disable-asm."
881         exit 1
882     fi
883 fi
884
885 if [ $asm = auto -a \( $ARCH = ARM -o $ARCH = AARCH64 \) ] ; then
886     # check if the assembler supports '.func' (clang 3.5 does not)
887     as_check ".func test${NL}.endfunc" && define HAVE_AS_FUNC 1
888 fi
889
890 if [ $asm = auto -a $ARCH = MIPS ] ; then
891     if ! echo $CFLAGS | grep -Eq '(-march|-mmsa|-mno-msa)' ; then
892         cc_check '' '-mmsa -mfp64 -mhard-float' && CFLAGS="-mmsa -mfp64 -mhard-float $CFLAGS"
893     fi
894
895     if cc_check '' '' '__asm__("addvi.b $w0, $w1, 1");' ; then
896         define HAVE_MSA
897     else
898         echo "You specified a pre-MSA CPU in your CFLAGS."
899         echo "If you really want to run on such a CPU, configure with --disable-asm."
900         exit 1
901     fi
902 fi
903
904 [ $asm = no ] && AS=""
905 [ "x$AS" = x ] && asm="no" || asm="yes"
906
907 define ARCH_$ARCH
908 define SYS_$SYS
909
910 define STACK_ALIGNMENT $stack_alignment
911 ASFLAGS="$ASFLAGS -DSTACK_ALIGNMENT=$stack_alignment"
912
913 # skip endianness check for Intel Compiler and MSVS, as all supported platforms are little. each have flags that will cause the check to fail as well
914 CPU_ENDIAN="little-endian"
915 if [ $compiler = GNU ]; then
916     echo "int i[2] = {0x42494745,0}; double f[2] = {0x1.0656e6469616ep+102,0};" > conftest.c
917     $CC $CFLAGS conftest.c -c -o conftest.o 2>/dev/null || die "endian test failed"
918     if (${cross_prefix}strings -a conftest.o | grep -q BIGE) && (${cross_prefix}strings -a conftest.o | grep -q FPendian) ; then
919         define WORDS_BIGENDIAN
920         CPU_ENDIAN="big-endian"
921     elif !(${cross_prefix}strings -a conftest.o | grep -q EGIB && ${cross_prefix}strings -a conftest.o | grep -q naidnePF) ; then
922         die "endian test failed"
923     fi
924 fi
925
926 if [ "$cli_libx264" = "system" -a "$shared" != "yes" ] ; then
927     [ "$static" = "yes" ] && die "Option --system-libx264 can not be used together with --enable-static"
928     if ${cross_prefix}pkg-config --exists x264 2>/dev/null; then
929         X264_LIBS="$(${cross_prefix}pkg-config --libs x264)"
930         X264_INCLUDE_DIR="${X264_INCLUDE_DIR-$(${cross_prefix}pkg-config --variable=includedir x264)}"
931         configure_system_override "$X264_INCLUDE_DIR" || die "Detection of system libx264 configuration failed"
932     else
933         die "Can not find system libx264"
934     fi
935 fi
936
937 # autodetect options that weren't forced nor disabled
938
939 libpthread=""
940 if [ "$SYS" = "WINDOWS" -a "$thread" = "posix" ] ; then
941     if [ "$gpl" = "no" ] ; then
942         echo "Warning: pthread-win32 is LGPL and is therefore not supported with --disable-gpl"
943         thread="no"
944     elif cc_check pthread.h -lpthread "pthread_create(0,0,0,0);" ; then
945         libpthread="-lpthread"
946     elif cc_check pthread.h -lpthreadGC2 "pthread_create(0,0,0,0);" ; then
947         libpthread="-lpthreadGC2"
948     elif cc_check pthread.h "-lpthreadGC2 -lwsock32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
949         libpthread="-lpthreadGC2 -lwsock32"
950         define PTW32_STATIC_LIB
951     elif cc_check pthread.h "-lpthreadGC2 -lws2_32 -DPTW32_STATIC_LIB" "pthread_create(0,0,0,0);" ; then
952         libpthread="-lpthreadGC2 -lws2_32"
953         define PTW32_STATIC_LIB
954     else
955         thread="no"
956     fi
957 elif [ "$thread" != "no" ] ; then
958     thread="no"
959     case $SYS in
960         BEOS)
961             thread="beos"
962             define HAVE_BEOSTHREAD
963             ;;
964         WINDOWS)
965             thread="win32"
966             define HAVE_WIN32THREAD
967             ;;
968         QNX)
969             cc_check pthread.h -lc "pthread_create(0,0,0,0);" && thread="posix" && libpthread="-lc"
970             ;;
971         *)
972             if cc_check pthread.h -lpthread "pthread_create(0,0,0,0);" ; then
973                thread="posix"
974                libpthread="-lpthread"
975             else
976                 cc_check pthread.h "" "pthread_create(0,0,0,0);" && thread="posix" && libpthread=""
977             fi
978             ;;
979     esac
980 fi
981 if [ "$thread" = "posix" ]; then
982     LDFLAGS="$LDFLAGS $libpthread"
983     define HAVE_POSIXTHREAD
984     if [ "$SYS" = "LINUX" ] && cc_check sched.h "-D_GNU_SOURCE -Werror" "cpu_set_t p_aff; return CPU_COUNT(&p_aff);" ; then
985         define HAVE_CPU_COUNT
986     fi
987 fi
988 [ "$thread" != "no" ] && define HAVE_THREAD
989
990 if cc_check "math.h" "-Werror" "return log2f(2);" ; then
991     define HAVE_LOG2F
992 fi
993
994 if [ "$SYS" != "WINDOWS" ] && cpp_check "sys/mman.h unistd.h" "" "defined(MAP_PRIVATE)"; then
995     define HAVE_MMAP
996 fi
997
998 if [ "$SYS" = "LINUX" -a \( "$ARCH" = "X86" -o "$ARCH" = "X86_64" \) ] && cc_check "sys/mman.h" "" "MADV_HUGEPAGE;" ; then
999     define HAVE_THP
1000 fi
1001
1002 if [ "$cli" = "no" ] ; then
1003     avs="no"
1004     lavf="no"
1005     ffms="no"
1006     gpac="no"
1007     lsmash="no"
1008     mp4="no"
1009     swscale="no"
1010 fi
1011
1012 if [ "$swscale" = "auto" ] ; then
1013     swscale="no"
1014     if ${cross_prefix}pkg-config --exists libswscale 2>/dev/null; then
1015         SWSCALE_LIBS="$SWSCALE_LIBS $(${cross_prefix}pkg-config --libs libswscale libavutil)"
1016         SWSCALE_CFLAGS="$SWSCALE_CFLAGS $(${cross_prefix}pkg-config --cflags libswscale libavutil)"
1017     fi
1018     [ -z "$SWSCALE_LIBS" ] && SWSCALE_LIBS="-lswscale -lavutil"
1019
1020     if cc_check "libswscale/swscale.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "sws_init_context(0,0,0);" ; then
1021         if cpp_check "libavutil/pixdesc.h" "$SWSCALE_CFLAGS $SWSCALE_LIBS" "defined(AV_PIX_FMT_FLAG_RGB)" ; then
1022             swscale="yes"
1023         else
1024             echo "Warning: AV_PIX_FMT_FLAG_RGB is missing from libavutil, update for swscale support"
1025         fi
1026     fi
1027 fi
1028
1029 if [ "$lavf" = "auto" ] ; then
1030     lavf="no"
1031     if ${cross_prefix}pkg-config --exists libavformat libavcodec libswscale 2>/dev/null; then
1032         LAVF_LIBS="$LAVF_LIBS $(${cross_prefix}pkg-config --libs libavformat libavcodec libavutil libswscale)"
1033         LAVF_CFLAGS="$LAVF_CFLAGS $(${cross_prefix}pkg-config --cflags libavformat libavcodec libavutil libswscale)"
1034     fi
1035     if [ -z "$LAVF_LIBS" -a -z "$LAVF_CFLAGS" ]; then
1036         LAVF_LIBS="-lavformat"
1037         for lib in -lpostproc -lavcodec -lswscale -lavutil -lm -lz -lbz2 $libpthread -lavifil32 -lws2_32; do
1038             cc_check "" $lib && LAVF_LIBS="$LAVF_LIBS $lib"
1039         done
1040     fi
1041     LAVF_LIBS="-L. $LAVF_LIBS"
1042     if cc_check libavformat/avformat.h "$LAVF_CFLAGS $LAVF_LIBS" "av_frame_free(0);" ; then
1043         if [ "$swscale" = "yes" ]; then
1044             lavf="yes"
1045         else
1046             echo "Warning: libavformat is not supported without swscale support"
1047         fi
1048     fi
1049 fi
1050
1051 if [ "$ffms" = "auto" ] ; then
1052     ffms_major="2"; ffms_minor="21"; ffms_micro="0"; ffms_bump="0"
1053     ffms="no"
1054
1055     if ${cross_prefix}pkg-config --exists ffms2 2>/dev/null; then
1056         FFMS2_LIBS="$FFMS2_LIBS $(${cross_prefix}pkg-config --libs ffms2)"
1057         FFMS2_CFLAGS="$FFMS2_CFLAGS $(${cross_prefix}pkg-config --cflags ffms2)"
1058     fi
1059     [ -z "$FFMS2_LIBS" ] && FFMS2_LIBS="-lffms2"
1060
1061     if cc_check ffms.h "$FFMS2_CFLAGS $FFMS2_LIBS" "FFMS_DestroyVideoSource(0);" ; then
1062         ffms="yes"
1063     elif cc_check ffms.h "$FFMS2_CFLAGS $FFMS2_LIBS -lstdc++ $LAVF_LIBS" "FFMS_DestroyVideoSource(0);" ; then
1064         ffms="yes"
1065         FFMS2_LIBS="$FFMS2_LIBS -lstdc++ $LAVF_LIBS"
1066     fi
1067
1068     error="ffms must be at least version $ffms_major.$ffms_minor.$ffms_micro.$ffms_bump"
1069     if [ $ffms = "yes" ] && ! cpp_check "ffms.h" "$FFMS2_CFLAGS" "FFMS_VERSION >= (($ffms_major << 24) | ($ffms_minor << 16) | ($ffms_micro << 8) | $ffms_bump)" "$error"; then
1070        ffms="no"
1071        echo "Warning: $error"
1072     fi
1073     if [ "$ffms" = "yes" -a "$swscale" = "no" ]; then
1074         echo "Warning: ffms is not supported without swscale support"
1075         ffms="no"
1076     fi
1077 fi
1078
1079 if [ "$swscale" = "yes" ]; then
1080     LDFLAGSCLI="$SWSCALE_LIBS $LDFLAGSCLI"
1081     CFLAGS="$CFLAGS $SWSCALE_CFLAGS"
1082     define HAVE_SWSCALE
1083     if [ "$lavf" = "yes" ]; then
1084         LDFLAGSCLI="$LAVF_LIBS $LDFLAGSCLI"
1085         CFLAGS="$CFLAGS $LAVF_CFLAGS"
1086         define HAVE_LAVF
1087     fi
1088     if [ "$ffms" = "yes" ]; then
1089         LDFLAGSCLI="$FFMS2_LIBS $LDFLAGSCLI"
1090         CFLAGS="$CFLAGS $FFMS2_CFLAGS"
1091         define HAVE_FFMS
1092     fi
1093 fi
1094
1095 if [ "$lsmash" = "auto" ] ; then
1096     lsmash="no"
1097     if ${cross_prefix}pkg-config --exists liblsmash 2>/dev/null; then
1098         LSMASH_LIBS="$LSMASH_LIBS $(${cross_prefix}pkg-config --libs liblsmash)"
1099         LSMASH_CFLAGS="$LSMASH_CFLAGS $(${cross_prefix}pkg-config --cflags liblsmash)"
1100     fi
1101     [ -z "$LSMASH_LIBS" ] && LSMASH_LIBS="-llsmash"
1102
1103     if cc_check lsmash.h "$LSMASH_CFLAGS $LSMASH_LIBS" ; then
1104         if cpp_check lsmash.h "$LSMASH_CFLAGS" "LSMASH_VERSION_MAJOR > 1 || (LSMASH_VERSION_MAJOR == 1 && LSMASH_VERSION_MINOR >= 5)" ; then
1105             lsmash="yes"
1106         else
1107             echo "Warning: lsmash is too old, update to rev.895 or later"
1108         fi
1109     fi
1110 fi
1111
1112 if [ "$gpac" = "auto" -a "$lsmash" != "yes" ] ; then
1113     gpac="no"
1114     GPAC_LIBS="-lgpac_static"
1115     cc_check "" -lz && GPAC_LIBS="$GPAC_LIBS -lz"
1116     if [ "$SYS" = "WINDOWS" ] ; then
1117         cc_check "" -lws2_32 && GPAC_LIBS="$GPAC_LIBS -lws2_32"
1118         cc_check "" -lwinmm && GPAC_LIBS="$GPAC_LIBS -lwinmm"
1119     fi
1120     if cc_check gpac/isomedia.h "$GPAC_LIBS" ; then
1121         if cc_check gpac/isomedia.h "$GPAC_LIBS" "gf_isom_set_pixel_aspect_ratio(0,0,0,0,0);" ; then
1122             gpac="yes"
1123         else
1124             echo "Warning: gpac is too old, update to 2007-06-21 UTC or later"
1125         fi
1126     fi
1127 fi
1128
1129 if [ "$lsmash" = "yes" ] ; then
1130     mp4="lsmash"
1131     LDFLAGSCLI="$LSMASH_LIBS $LDFLAGSCLI"
1132     CFLAGS="$CFLAGS $LSMASH_CFLAGS"
1133     define HAVE_LSMASH
1134 elif [ "$gpac" = "yes" ] ; then
1135     mp4="gpac"
1136     define HAVE_GPAC
1137     LDFLAGSCLI="$GPAC_LIBS $LDFLAGSCLI"
1138 fi
1139
1140 if [ "$avs" = "auto" ] ; then
1141     avs="no"
1142     # cygwin can use avisynth if it can use LoadLibrary
1143     if [ $SYS = WINDOWS ] || ([ $SYS = CYGWIN ] && cc_check windows.h "" "LoadLibraryW(0);") ; then
1144         avs="avisynth"
1145         define HAVE_AVS
1146         define USE_AVXSYNTH 0
1147     elif [ "$SYS" = "LINUX" -o "$SYS" = "MACOSX" ] ; then
1148     # AvxSynth currently only supports Linux and OSX
1149         avs="avxsynth"
1150         define HAVE_AVS
1151         define USE_AVXSYNTH 1
1152         AVS_LIBS="-ldl"
1153         LDFLAGSCLI="$AVS_LIBS $LDFLAGSCLI"
1154     fi
1155 fi
1156
1157 cc_check "stdint.h" "" "uint32_t test_vec __attribute__ ((vector_size (16))) = {0,1,2,3};" && define HAVE_VECTOREXT
1158
1159 if [ "$pic" = "yes" ] ; then
1160     [ "$SYS" != WINDOWS -a "$SYS" != CYGWIN ] && CFLAGS="$CFLAGS -fPIC"
1161     ASFLAGS="$ASFLAGS -DPIC"
1162     # resolve textrels in the x86 asm
1163     cc_check stdio.h "-shared -Wl,-Bsymbolic" && SOFLAGS="$SOFLAGS -Wl,-Bsymbolic"
1164     [ $SYS = SunOS -a "$ARCH" = "X86" ] && SOFLAGS="$SOFLAGS -mimpure-text"
1165 fi
1166
1167 if [ "$debug" != "yes" -a "$gprof" != "yes" ]; then
1168     CFLAGS="$CFLAGS -fomit-frame-pointer"
1169 fi
1170
1171 if [ "$strip" = "yes" ]; then
1172     LDFLAGS="$LDFLAGS -s"
1173 fi
1174
1175 if [ "$debug" = "yes" ]; then
1176     CFLAGS="-O1 -g $CFLAGS"
1177     RCFLAGS="$RCFLAGS -DDEBUG"
1178 else
1179     CFLAGS="-O3 -ffast-math $CFLAGS"
1180 fi
1181
1182 if cc_check '' -fno-tree-vectorize ; then
1183     CFLAGS="$CFLAGS -fno-tree-vectorize"
1184 fi
1185
1186 if [ $SYS = WINDOWS -a $ARCH = X86 -a $compiler = GNU ] ; then
1187     # workaround gcc/ld bug with alignment of static variables/arrays that are initialized to zero
1188     cc_check '' -fno-zero-initialized-in-bss && CFLAGS="$CFLAGS -fno-zero-initialized-in-bss"
1189 fi
1190
1191 if cc_check "stdio.h" "" "fseeko(stdin,0,0);" ; then
1192     define fseek fseeko
1193     define ftell ftello
1194 elif cc_check "stdio.h" "" "fseeko64(stdin,0,0);" ; then
1195     define fseek fseeko64
1196     define ftell ftello64
1197 elif cc_check "stdio.h" "" "_fseeki64(stdin,0,0);" ; then
1198     define fseek _fseeki64
1199     define ftell _ftelli64
1200 fi
1201
1202 if cc_check '' -Wshadow ; then
1203     CFLAGS="-Wshadow $CFLAGS"
1204 fi
1205
1206 if cc_check '' -Wmaybe-uninitialized ; then
1207     CFLAGS="-Wno-maybe-uninitialized $CFLAGS"
1208 fi
1209
1210 if [ $compiler = ICC -o $compiler = ICL ] ; then
1211     if cc_check 'extras/intel_dispatcher.h' '' 'x264_intel_dispatcher_override();' ; then
1212         define HAVE_INTEL_DISPATCHER
1213     fi
1214 fi
1215
1216 if [ "$bit_depth" -gt "8" ]; then
1217     define HIGH_BIT_DEPTH
1218     ASFLAGS="$ASFLAGS -DHIGH_BIT_DEPTH=1"
1219     opencl="no"
1220 else
1221     ASFLAGS="$ASFLAGS -DHIGH_BIT_DEPTH=0"
1222 fi
1223
1224 if [ "$chroma_format" != "all" ]; then
1225     define CHROMA_FORMAT CHROMA_$chroma_format
1226 fi
1227
1228 ASFLAGS="$ASFLAGS -DBIT_DEPTH=$bit_depth"
1229
1230 [ $gpl = yes ] && define HAVE_GPL && x264_gpl=1 || x264_gpl=0
1231
1232 [ $interlaced = yes ] && define HAVE_INTERLACED && x264_interlaced=1 || x264_interlaced=0
1233
1234 libdl=""
1235 if [ "$opencl" = "yes" ]; then
1236     opencl="no"
1237     # cygwin can use opencl if it can use LoadLibrary
1238     if [ $SYS = WINDOWS ] || ([ $SYS = CYGWIN ] && cc_check windows.h "" "LoadLibraryW(0);") ; then
1239         opencl="yes"
1240         define HAVE_OPENCL
1241     elif [ "$SYS" = "LINUX" -o "$SYS" = "MACOSX" ] ; then
1242         opencl="yes"
1243         define HAVE_OPENCL
1244         libdl="-ldl"
1245     fi
1246     LDFLAGS="$LDFLAGS $libdl"
1247 fi
1248
1249 #define undefined vars as 0
1250 for var in $CONFIG_HAVE; do
1251     grep -q "HAVE_$var 1" config.h || define HAVE_$var 0
1252 done
1253
1254 # generate exported config file
1255
1256 config_chroma_format="X264_CSP_I$chroma_format"
1257 [ "$config_chroma_format" == "X264_CSP_Iall" ] && config_chroma_format="0"
1258 cat > x264_config.h << EOF
1259 #define X264_BIT_DEPTH     $bit_depth
1260 #define X264_GPL           $x264_gpl
1261 #define X264_INTERLACED    $x264_interlaced
1262 #define X264_CHROMA_FORMAT $config_chroma_format
1263 EOF
1264
1265 ${SRCPATH}/version.sh >> x264_config.h
1266
1267 if [ "$cli_libx264" = "system" ] ; then
1268     if [ "$shared" = "yes" ]; then
1269         CLI_LIBX264='$(SONAME)'
1270     else
1271         CLI_LIBX264=
1272         LDFLAGSCLI="$X264_LIBS $LDFLAGSCLI"
1273         cc_check 'stdint.h x264.h' '' 'x264_encoder_open(0);' || die "System libx264 can't be used for compilation of this version"
1274     fi
1275 else
1276     CLI_LIBX264='$(LIBX264)'
1277 fi
1278
1279 DEPMM="${QPRE}MM"
1280 DEPMT="${QPRE}MT"
1281 if [ $compiler_style = MS ]; then
1282     AR="lib -nologo -out:"
1283     LD="link -out:"
1284     if [ $compiler = ICL ]; then
1285         AR="xi$AR"
1286         LD="xi$LD"
1287     else
1288         mslink="$(dirname "$(command -v cl 2>/dev/null)")/link"
1289         [ -x "$mslink" ] && LD="\"$mslink\" -out:"
1290     fi
1291     HAVE_GETOPT_LONG=0
1292     LDFLAGS="-nologo -incremental:no $(cl_ldflags $LDFLAGS)"
1293     LDFLAGSCLI="$(cl_ldflags $LDFLAGSCLI)"
1294     LIBX264=libx264.lib
1295     RANLIB=
1296     [ -n "$RC" ] && RCFLAGS="$RCFLAGS -nologo -I. -I\$(SRCPATH)/extras -fo"
1297     STRIP=
1298     if [ $debug = yes ]; then
1299         LDFLAGS="-debug $LDFLAGS"
1300         CFLAGS="-D_DEBUG $CFLAGS"
1301     else
1302         CFLAGS="-DNDEBUG $CFLAGS"
1303     fi
1304 else # gcc/icc
1305     DEPMM="$DEPMM -g0"
1306     AR="$AR rc "
1307     LD="$CC -o "
1308     LIBX264=libx264.a
1309     [ -n "$RC" ] && RCFLAGS="$RCFLAGS -I. -o "
1310 fi
1311 [ $compiler != GNU ] && CFLAGS="$(cc_cflags $CFLAGS)"
1312 if [ $compiler = ICC -o $compiler = ICL ]; then
1313     # icc does not define __SSE__ until SSE2 optimization and icl never defines it or _M_IX86_FP
1314     [ \( $ARCH = X86_64 -o $ARCH = X86 \) -a $asm = yes ] && ! cpp_check "" "" "defined(__SSE__)" && define __SSE__
1315     PROF_GEN_CC="${QPRE}prof-gen ${QPRE}prof-dir."
1316     PROF_GEN_LD=
1317     PROF_USE_CC="${QPRE}prof-use ${QPRE}prof-dir."
1318     PROF_USE_LD=
1319 elif [ $compiler = CL ]; then
1320     # Visual Studio
1321     # _M_IX86_FP is only defined on x86
1322     [ $ARCH = X86 ] && cpp_check '' '' '_M_IX86_FP >= 1' && define __SSE__
1323     [ $ARCH = X86_64 ] && define __SSE__
1324     # As long as the cli application can't link against the dll, the dll can not be pgo'd.
1325     # pgds are link flag specific and the -dll flag for creating the dll makes it unshareable with the cli
1326     PROF_GEN_CC="-GL"
1327     PROF_GEN_LD="-LTCG:PGINSTRUMENT"
1328     PROF_USE_CC="-GL"
1329     PROF_USE_LD="-LTCG:PGOPTIMIZE"
1330 else
1331     PROF_GEN_CC="-fprofile-generate"
1332     PROF_GEN_LD="-fprofile-generate"
1333     PROF_USE_CC="-fprofile-use"
1334     PROF_USE_LD="-fprofile-use"
1335 fi
1336
1337 # generate config files
1338
1339 cat > config.mak << EOF
1340 SRCPATH=$SRCPATH
1341 prefix=$prefix
1342 exec_prefix=$exec_prefix
1343 bindir=$bindir
1344 libdir=$libdir
1345 includedir=$includedir
1346 SYS_ARCH=$ARCH
1347 SYS=$SYS
1348 CC=$CC
1349 CFLAGS=$CFLAGS
1350 COMPILER=$compiler
1351 COMPILER_STYLE=$compiler_style
1352 DEPMM=$DEPMM
1353 DEPMT=$DEPMT
1354 LD=$LD
1355 LDFLAGS=$LDFLAGS
1356 LIBX264=$LIBX264
1357 AR=$AR
1358 RANLIB=$RANLIB
1359 STRIP=$STRIP
1360 INSTALL=$INSTALL
1361 AS=$AS
1362 ASFLAGS=$ASFLAGS
1363 RC=$RC
1364 RCFLAGS=$RCFLAGS
1365 EXE=$EXE
1366 HAVE_GETOPT_LONG=$HAVE_GETOPT_LONG
1367 DEVNULL=$DEVNULL
1368 PROF_GEN_CC=$PROF_GEN_CC
1369 PROF_GEN_LD=$PROF_GEN_LD
1370 PROF_USE_CC=$PROF_USE_CC
1371 PROF_USE_LD=$PROF_USE_LD
1372 HAVE_OPENCL=$opencl
1373 EOF
1374
1375 if [ $compiler_style = MS ]; then
1376     echo '%.o: %.c' >> config.mak
1377     echo '      $(CC) $(CFLAGS) -c -Fo$@ $<' >> config.mak
1378 fi
1379
1380 if [ "$cli" = "yes" ]; then
1381     echo 'default: cli' >> config.mak
1382     echo 'install: install-cli' >> config.mak
1383 fi
1384
1385 if [ "$shared" = "yes" ]; then
1386     API=$(grep '#define X264_BUILD' < ${SRCPATH}/x264.h | cut -f 3 -d ' ')
1387     if [ "$SYS" = "WINDOWS" -o "$SYS" = "CYGWIN" ]; then
1388         echo "SONAME=libx264-$API.dll" >> config.mak
1389         if [ $compiler_style = MS ]; then
1390             echo 'IMPLIBNAME=libx264.dll.lib' >> config.mak
1391             # GNU ld on windows defaults to exporting all global functions if there are no explicit __declspec(dllexport) declarations
1392             # 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
1393             echo "SOFLAGS=-dll -def:x264.def -implib:\$(IMPLIBNAME) $SOFLAGS" >> config.mak
1394             echo "EXPORTS" > x264.def
1395             # export API functions
1396             grep "^\(int\|void\|x264_t\).*x264" ${SRCPATH}/x264.h | sed -e "s/.*\(x264.*\)(.*/\1/;s/open/open_$API/g" >> x264.def
1397             # export API variables/data. must be flagged with the DATA keyword
1398             grep "extern.*x264" ${SRCPATH}/x264.h | sed -e "s/.*\(x264\w*\)\W.*/\1 DATA/;" >> x264.def
1399         else
1400             echo 'IMPLIBNAME=libx264.dll.a' >> config.mak
1401             echo "SOFLAGS=-shared -Wl,--out-implib,\$(IMPLIBNAME) $SOFLAGS" >> config.mak
1402         fi
1403     elif [ "$SYS" = "MACOSX" ]; then
1404         echo "SOSUFFIX=dylib" >> config.mak
1405         echo "SONAME=libx264.$API.dylib" >> config.mak
1406         echo "SOFLAGS=-shared -dynamiclib -Wl,-single_module -Wl,-read_only_relocs,suppress -install_name \$(DESTDIR)\$(libdir)/\$(SONAME) $SOFLAGS" >> config.mak
1407     elif [ "$SYS" = "SunOS" ]; then
1408         echo "SOSUFFIX=so" >> config.mak
1409         echo "SONAME=libx264.so.$API" >> config.mak
1410         echo "SOFLAGS=-shared -Wl,-h,\$(SONAME) $SOFLAGS" >> config.mak
1411     else
1412         echo "SOSUFFIX=so" >> config.mak
1413         echo "SONAME=libx264.so.$API" >> config.mak
1414         echo "SOFLAGS=-shared -Wl,-soname,\$(SONAME) $SOFLAGS" >> config.mak
1415     fi
1416     echo 'default: lib-shared' >> config.mak
1417     echo 'install: install-lib-shared' >> config.mak
1418 fi
1419
1420 if [ "$static" = "yes" ]; then
1421     echo 'default: lib-static' >> config.mak
1422     echo 'install: install-lib-static' >> config.mak
1423 fi
1424
1425 echo "LDFLAGSCLI = $LDFLAGSCLI" >> config.mak
1426 echo "CLI_LIBX264 = $CLI_LIBX264" >> config.mak
1427
1428 cat > x264.pc << EOF
1429 prefix=$prefix
1430 exec_prefix=$exec_prefix
1431 libdir=$libdir
1432 includedir=$includedir
1433
1434 Name: x264
1435 Description: H.264 (MPEG4 AVC) encoder library
1436 Version: $(grep POINTVER < x264_config.h | sed -e 's/.* "//; s/".*//')
1437 Libs: -L$libdir -lx264 $([ "$shared" = "yes" ] || echo $libpthread $libm $libdl)
1438 Libs.private: $([ "$shared" = "yes" ] && echo $libpthread $libm $libdl)
1439 Cflags: -I$includedir
1440 EOF
1441
1442 filters="crop select_every"
1443 gpl_filters=""
1444 [ $swscale = yes ] && filters="resize $filters"
1445 [ $gpl = yes ] && filters="$filters $gpl_filters"
1446
1447 cat > conftest.log <<EOF
1448 platform:      $ARCH
1449 byte order:    $CPU_ENDIAN
1450 system:        $SYS
1451 cli:           $cli
1452 libx264:       $cli_libx264
1453 shared:        $shared
1454 static:        $static
1455 asm:           $asm
1456 interlaced:    $interlaced
1457 avs:           $avs
1458 lavf:          $lavf
1459 ffms:          $ffms
1460 mp4:           $mp4
1461 gpl:           $gpl
1462 thread:        $thread
1463 opencl:        $opencl
1464 filters:       $filters
1465 debug:         $debug
1466 gprof:         $gprof
1467 strip:         $strip
1468 PIC:           $pic
1469 bit depth:     $bit_depth
1470 chroma format: $chroma_format
1471 EOF
1472
1473 echo >> config.log
1474 cat conftest.log >> config.log
1475 cat conftest.log
1476
1477 [ "$SRCPATH" != "." ] && ln -sf ${SRCPATH}/Makefile ./Makefile
1478 mkdir -p common/{aarch64,arm,ppc,x86} encoder extras filters/video input output tools
1479
1480 echo
1481 echo "You can run 'make' or 'make fprofiled' now."
1482