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test availability of various compiler flags, and verify that requested

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libraries are really installed

Originally committed as revision 5486 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Måns Rullgård 19 years ago
parent 2c8e201429
commit 57bd82d4e7
1 changed files with 168 additions and 110 deletions
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  1. 278
      configure

278
configure vendored
Unescape View File

@ -9,6 +9,7 @@ show_help(){
echo
echo "Standard options:"
echo " --help print this message"
echo " --log log tests and output to config.err"
echo " --prefix=PREFIX install in PREFIX [$prefix]"
echo " --libdir=DIR install libs in DIR [PREFIX/lib]"
echo " --incdir=DIR install includes in DIR [PREFIX/include/ffmpeg]"
@ -96,8 +97,26 @@ show_help(){
exit 1
}
log(){
echo "$@" >>$logfile
}
die(){
echo "$@"
rm -f $TMPC $TMPO $TMPE $TMPS $TMPH
exit 1
}
enabled(){
eval test "\$$1" = "yes"
}
flags_saved(){
(: ${SAVE_CFLAGS?}) 2>/dev/null
}
save_flags(){
(:${SAVE_CFLAGS?}) 2>/dev/null && return
flags_saved && return
SAVE_CFLAGS="$CFLAGS"
SAVE_LDFLAGS="$LDFLAGS"
SAVE_extralibs="$extralibs"
@ -127,38 +146,74 @@ temp_extralibs(){
extralibs="$extralibs $*"
}
append(){
var=$1
shift
flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
eval "$var=\"\$$var $*\""
}
add_cflags(){
append CFLAGS "$@"
}
add_ldflags(){
append LDFLAGS "$@"
}
add_extralibs(){
append extralibs "$@"
}
check_cc(){
log check_cc "$@"
cat >$TMPC
$cc $CFLAGS "$@" -c -o $TMPO $TMPC >/dev/null 2>&1
log $cc $CFLAGS "$@" -c -o $TMPO $TMPC
$cc $CFLAGS "$@" -c -o $TMPO $TMPC >>$logfile 2>&1
}
check_cpp(){
log check_cpp "$@"
cat >$TMPC
log $cc $CFLAGS "$@" -E -o $TMPO $TMPC
$cc $CFLAGS "$@" -E -o $TMPO $TMPC >>$logfile 2>&1
}
check_ld(){
log check_ld "$@"
cat >$TMPC
$cc $CFLAGS $LDFLAGS "$@" -o $TMPE $TMPC $extralibs >/dev/null 2>&1
log $cc $CFLAGS $LDFLAGS "$@" -o $TMPE $TMPC $extralibs
$cc $CFLAGS $LDFLAGS "$@" -o $TMPE $TMPC $extralibs >>/dev/null 2>&1
}
check_cflags(){
check_cc "$@" <<EOF && CFLAGS="$CFLAGS $*"
log check_cflags "$@"
check_cc "$@" <<EOF && add_cflags "$@"
int x;
EOF
}
check_ldflags(){
check_ld "$@" <<EOF && LDFLAGS="$LDFLAGS $*"
int x;
log check_ldflags "$@"
check_ld "$@" <<EOF && add_ldflags "$@"
int main(){
return 0;
}
EOF
}
check_header(){
log check_header "$@"
header=$1
shift
check_cc "$@" <<EOF
check_cpp "$@" <<EOF
#include <$header>
int x;
EOF
}
check_func(){
log check_func "$@"
func=$1
shift
check_ld "$@" <<EOF
@ -169,8 +224,28 @@ int main(){
EOF
}
check_lib(){
log check_lib "$@"
header="$1"
func="$2"
shift 2
temp_extralibs "$@"
check_header $header && check_func $func && add_extralibs "$@"
err=$?
restore_flags
return $err
}
check_exec(){
check_ld "$@" && (test -z "$cross_prefix" && $TMPE || true)
check_ld "$@" && { test -n "$cross_prefix" || $TMPE; }
}
require(){
name="$1"
header="$2"
func="$3"
shift 3
check_lib $header $func "$@" || die "ERROR: $name not found"
}
if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
@ -193,6 +268,8 @@ TMPS="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
TMPH="${TMPDIR1}/ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
# default parameters
log="no"
logfile="/dev/null"
prefix="/usr/local"
libdir=""
incdir=""
@ -467,7 +544,7 @@ cygwin="yes"
EXESUF=".exe"
;;
Linux)
FFLDFLAGS="$FFLDFLAGS -rdynamic -Wl,--as-needed -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil"
FFLDFLAGS="$FFLDFLAGS -rdynamic"
;;
IRIX*)
ranlib="echo ignoring ranlib"
@ -544,6 +621,8 @@ CODEC_LIST=`grep 'register_avcodec(&[a-z]' $source_path/libavcodec/allcodecs.c
for opt do
case "$opt" in
--log) log=yes
;;
--prefix=*) prefix=`echo $opt | cut -d '=' -f 2`; force_prefix=yes
;;
--libdir=*) libdir=`echo $opt | cut -d '=' -f 2`; force_libdir=yes
@ -605,44 +684,33 @@ for opt do
--enable-a52bin) a52bin="yes"
;;
--enable-dts) dts="yes"
extralibs="$extralibs -ldts"
;;
--enable-pp) pp="yes"
;;
--enable-libgsm) libgsm="yes"
extralibs="$extralibs -lgsm"
;;
--enable-mp3lame) mp3lame="yes"
extralibs="$extralibs -lmp3lame"
;;
--enable-libogg) libogg="yes"
extralibs="$extralibs -logg"
pkg_requires="$pkg_requires ogg >= 1.1"
;;
--enable-vorbis) vorbis="yes"
extralibs="$extralibs -lvorbis -lvorbisenc"
pkg_requires="$pkg_requires vorbis vorbisenc"
;;
--enable-theora) theora="yes"
extralibs="$extralibs -ltheora"
pkg_requires="$pkg_requires theora"
;;
--enable-faad) faad="yes"
extralibs="$extralibs -lfaad"
;;
--enable-faadbin) faadbin="yes"
;;
--enable-faac) faac="yes"
extralibs="$extralibs -lfaac"
;;
--enable-xvid) xvid="yes"
extralibs="$extralibs -lxvidcore"
;;
--enable-x264) x264="yes"
extralibs="$extralibs -lx264"
;;
--enable-dc1394) dc1394="yes"
extralibs="$extralibs -ldc1394_control -lraw1394"
pkg_requires="$pkg_requires libraw1394"
;;
--disable-vhook) vhook="no"
@ -719,6 +787,11 @@ for opt do
esac
done
if enabled log; then
logfile=config.err
echo "# $0 $@" >$logfile
set >>$logfile
fi
# Combine FFLDFLAGS and the LDFLAGS environment variable
LDFLAGS="$FFLDFLAGS $LDFLAGS"
@ -926,6 +999,8 @@ if test $tune != "generic"; then
esac
fi
# check for SIMD availability
# AltiVec flags: The FSF version of GCC differs from the Apple version
if test $cpu = "powerpc"; then
if test $altivec = "yes"; then
@ -966,14 +1041,37 @@ if test $mmi = "default"; then
fi
# check if our compiler supports mmi
if test $mmi = "yes"; then
check_cc <<EOF || mmi="no"
enabled mmi && check_cc <<EOF || mmi="no"
int main(void) {
__asm__ ("lq \$2, 0(\$2)");
return 0;
}
EOF
fi
# test gcc version to see if vector builtins can be used
# currently only used on i386 for MMX builtins
check_cc -msse <<EOF && builtin_vector=yes || builtin_vector=no
#include <xmmintrin.h>
int main(void) {
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
return 0;
#else
#error no vector builtins
#endif
}
EOF
# test for mm3dnow.h
test "$cpu" = "x86_64" && march=k8 || march=athlon
check_cc -march=$march <<EOF && mm3dnow=yes || mm3dnow=no
#include <mm3dnow.h>
int main(void) {
__m64 b1;
b1 = _m_pswapd(b1);
_m_femms();
return 0;
}
EOF
if test "$mingw32" = "yes" -o "$mingwce" = "yes"; then
if test "$lshared" = "yes" && test "$lstatic" = "yes" ; then
@ -1003,22 +1101,16 @@ EOF
if test "$force_libdir" != yes; then bindir="$prefix"; fi
fi
# ---
# big/little-endian test
if test -z "$cross_prefix" ; then
# ---
# big/little-endian test
check_ld <<EOF
check_ld <<EOF || die "endian test failed" && $TMPE && bigendian="yes"
#include <inttypes.h>
int main(int argc, char ** argv){
volatile uint32_t i=0x01234567;
return (*((uint8_t*)(&i))) == 0x67;
}
EOF
if test $? = 0 ; then
$TMPE && bigendian="yes"
else
echo big/little test failed
fi
else
# programs cannot be launched if cross compiling, so make a static guess
if test "$cpu" = "powerpc" -o "$cpu" = "mips" ; then
@ -1052,32 +1144,36 @@ if check_header malloc.h; then
fi
if test "$_memalign" = "no" -a "$mmx" = "yes" -a "$memalignhack" != "yes"; then
echo "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
exit 1
die "Error, no memalign() but SSE enabled, disable it or use --enable-memalign-hack."
fi
check_func localtime_r && localtime_r=yes || localtime_r=no
if test "$zlib" = "yes"; then
temp_extralibs -lz
check_header zlib.h && check_func zlibVersion || zlib="no"
# XXX: more tests needed - runtime test
restore_flags
fi
if test "$zlib" = "yes"; then
extralibs="$extralibs -lz"
fi
if test "$lzo" = "yes" -a "$gpl" = "yes"; then
temp_extralibs -llzo
check_header lzo1x.h && check_func lzo_version || lzo="no"
restore_flags
else
lzo="no"
fi
if test "$lzo" = "yes"; then
extralibs="$extralibs -llzo"
fi
enabled zlib && check_lib zlib.h zlibVersion -lz || zlib="no"
enabled lzo && enabled gpl && check_lib lzo1x.h lzo_version -llzo || lzo="no"
# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if enabled pthreads; then
{ check_cflags -pthread && check_ldflags -pthread; } ||
{ check_cflags -pthreads && check_ldflags -pthreads; } ||
check_lib pthread.h pthread_create -lpthread ||
check_func pthread_create ||
die "ERROR: can't find pthreads library"
fi
# these are off by default, so fail if requested and not available
enabled dts && require libdts dts.h dts_init -ldts
enabled libgsm && require libgsm gsm.h gsm_create -lgsm
enabled mp3lame && require LAME lame/lame.h lame_init -lmp3lame
enabled libogg && require libogg ogg/ogg.h ogg_sync_init -logg
enabled vorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbis -lvorbisenc
enabled theora && require libtheora theora/theora.h theora_info_init -ltheora
enabled faac && require libfaac faac.h faacEncOpen -lfaac
enabled faad && require libfaad faad.h faacDecOpen -lfaad
enabled xvid && require XviD xvid.h xvid_global -lxvidcore
enabled x264 && require x264 x264.h x264_encoder_open -lx264
enabled dc1394 && require libdc1394 libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394
enabled sunmlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
# test for lrintf in math.h
check_exec <<EOF && have_lrintf=yes || have_lrintf=no
@ -1088,42 +1184,11 @@ EOF
_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
check_cc <<EOF
check_cc <<EOF && _restrict=$restrict_keyword && break
void foo(char * $restrict_keyword p);
EOF
if test $? = 0; then
_restrict=$restrict_keyword
break;
fi
done
# test gcc version to see if vector builtins can be used
# currently only used on i386 for MMX builtins
check_cc -msse <<EOF && builtin_vector=yes || builtin_vector=no
#include <xmmintrin.h>
int main(void) {
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 2)
return 0;
#else
#error no vector builtins
#endif
}
EOF
# test for mm3dnow.h
test "$cpu" = "x86_64" && march=k8 || march=athlon
check_cc -march=$march <<EOF && mm3dnow=yes || mm3dnow=no
#include <mm3dnow.h>
int main(void) {
__m64 b1;
b1 = _m_pswapd(b1);
_m_femms();
return 0;
}
EOF
check_cflags -Wdeclaration-after-statement
# dlopen/dlfcn.h probing
check_header dlfcn.h && dlfcn=yes
@ -1145,7 +1210,7 @@ if test "$vhook" = "default"; then
fi
if test "$vhook" = "yes" -o "$a52bin" = "yes" -o "$faadbin" = "yes"; then
extralibs="$extralibs $ldl"
add_extralibs $ldl
fi
@ -1209,6 +1274,8 @@ EOF
restore_flags
fi
enabled sdl || ffplay=no
##########################################
# texi2html check
@ -1220,7 +1287,7 @@ fi
##########################################
# IPv6 check
test "$network" = "yes" && check_ld <<EOF && ipv6=yes || ipv6=no
enabled network && check_ld <<EOF && ipv6=yes || ipv6=no
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
@ -1235,7 +1302,7 @@ int main( void ) {
EOF
# check for video4linux2 --- V4L2_PIX_FMT_YUV420
test "$v4l2" = "yes" && check_cc <<EOF || v4l2="no"
enabled v4l2 && check_cc <<EOF || v4l2="no"
#include <sys/time.h>
#include <asm/types.h>
#include <linux/videodev2.h>
@ -1243,23 +1310,20 @@ int dummy = V4L2_PIX_FMT_YUV420;
struct v4l2_buffer dummy1;
EOF
enabled debug && add_cflags -g
# add some useful compiler flags if supported
check_cflags -Wdeclaration-after-statement
check_cflags -Wall
check_cflags -Wno-switch
if test "$sdl" = "no"; then
ffplay=no
fi
# add some linker flags
check_ldflags '-Wl,--as-needed' '-Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec' '-Wl,-rpath-link,\$(BUILD_ROOT)/libavformat' '-Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
if test "$debug" = "yes"; then
CFLAGS="-g $CFLAGS"
fi
# not all compilers support -Os
test "$optimize" = "small" && check_cflags -Os
if test "$optimize" = "small"; then
# CFLAGS=${CFLAGS//-O3/-Os}
CFLAGS="$CFLAGS -Os"
fi
if test "$optimize" = "yes"; then
if enabled optimize; then
if test -n "`$cc -v 2>&1 | grep xlc`"; then
CFLAGS="$CFLAGS -O5"
LDFLAGS="$LDFLAGS -O5"
@ -1394,10 +1458,8 @@ fi
# SHCFLAGS is a copy of CFLAGS without -mdynamic-no-pic, used when building
# shared modules on OS/X (vhook/Makefile).
SHCFLAGS=$CFLAGS
if test "$needmdynamicnopic" = yes; then
CFLAGS="$CFLAGS -mdynamic-no-pic"
fi
SHCFLAGS="$CFLAGS"
test "$needmdynamicnopic" = yes && add_cflags -mdynamic-no-pic
echo "OPTFLAGS=$CFLAGS" >> config.mak
echo "SHCFLAGS=$SHCFLAGS">>config.mak
@ -1528,15 +1590,11 @@ fi
if test "$sunmlib" = "yes" ; then
echo "HAVE_MLIB=yes" >> config.mak
echo "#define HAVE_MLIB 1" >> $TMPH
extralibs="$extralibs -lmlib"
fi
if test "$pthreads" = "yes" ; then
echo "HAVE_PTHREADS=yes" >> config.mak
echo "#define HAVE_PTHREADS 1" >> $TMPH
echo "#define HAVE_THREADS 1" >> $TMPH
if test $targetos != FreeBSD -a $targetos != OpenBSD ; then
extralibs="$extralibs -lpthread"
fi
fi
if test "$sdl" = "yes" ; then
echo "CONFIG_SDL=yes" >> config.mak

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