ffmpeg/configure

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#!/bin/sh
TMPC="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
TMPO="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
TMPS="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
TMPH="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.h"
if [ ! -z "$TMPDIR" ]; then
TMPC="${TMPDIR}/${TMPC}"
TMPCPP="${TMPDIR}/${TMPCPP}"
TMPO="${TMPDIR}/${TMPO}"
TMPS="${TMPDIR}/${TMPS}"
TMPH="${TMPDIR}/${TMPH}"
elif [ ! -z "$TEMPDIR" ]; then
TMPC="${TEMPDIR}/${TMPC}"
TMPCPP="${TEMPDIR}/${TMPCPP}"
TMPO="${TEMPDIR}/${TMPO}"
TMPS="${TEMPDIR}/${TMPS}"
TMPH="${TEMPDIR}/${TMPH}"
else
TMPC="/tmp/${TMPC}"
TMPCPP="/tmp/${TMPCPP}"
TMPO="/tmp/${TMPO}"
TMPS="/tmp/${TMPS}"
TMPH="/tmp/${TMPH}"
fi
# default parameters
prefix="/usr/local"
cc="gcc"
ar="ar"
cpu=`uname -m`
case "$cpu" in
i386|i486|i586|i686|i86pc|BePC)
cpu="x86"
mmx="yes"
;;
armv4l)
cpu="armv4l"
mmx="no"
;;
alpha)
cpu="alpha"
mmx="no"
;;
*)
mmx="no"
;;
esac
gprof="no"
grab="yes"
mp3lame="no"
win32="no"
extralibs="-lm"
# OS specific
targetos=`uname -s`
case $targetos in
BeOS)
prefix="/boot/home/config"
# helps building libavcodec
grab="no"
CFLAGS="-O2 -DPIC"
# no need for libm, but the inet stuff
# Check for BONE
if (echo $BEINCLUDES|grep 'headers/be/bone' >/dev/null); then
extralibs="-lbind -lsocket"
else
echo "Not sure building for net_server will succeed... good luck."
extralibs="-lsocket"
fi ;;
*) ;;
esac
if [ "$1" = "-h" -o "$1" = "--help" ] ; then
cat << EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]
--help print this message
EOF
echo " --prefix=PREFIX install in PREFIX [$prefix]"
echo " --cc=CC use C compiler CC [$cc]"
echo " --cpu=CPU force cpu to CPU [$cpu]"
echo " --disable-mmx disable mmx usage"
echo " --enable-gprof enable profiling with gprof [$gprof]"
echo " --disable-grab disable audio/video grabbing code"
echo " --enable-simple_idct use simple IDCT routines"
echo " --enable-mp3lame enable mp3 encoding via libmp3lame"
echo " --enable-win32 enable win32 cross compile"
echo " --enable-shared build shared libraries [default=no]"
exit 1
fi
lshared=no
for opt do
case "$opt" in
--prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
;;
--cc=*) cc=`echo $opt | cut -d '=' -f 2`
;;
--cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
;;
--disable-mmx) mmx="no"
;;
--enable-gprof) gprof="yes"
;;
--disable-grab) grab="no"
;;
--enable-mp3lame) mp3lame="yes"
;;
--enable-simple_idct) simpleidct="yes"
;;
--enable-win32) win32="yes"
;;
--enable-shared=*) lshared=`echo $opt | cut -d '=' -f 2`
;;
esac
done
# Checking for CFLAGS
if test -z "$CFLAGS"; then
CFLAGS="-O2"
fi
if [ "$win32" = "yes" ] ; then
cross_prefix="i386-mingw32msvc-"
cc="${cross_prefix}gcc"
ar="${cross_prefix}ar"
grab="no"
fi
# ---
# check availability of some header files
cat > $TMPC << EOF
#include <malloc.h>
int main( void ) { return 0; }
EOF
_memalign=no
_malloc_h=no
if $cc -o $TMPO $TMPC 2> /dev/null ; then
_malloc_h=yes
_memalign=yes
# check for memalign - atmos
cat > $TMPC << EOF
#include <malloc.h>
int main ( void ) {
char *string = NULL;
string = memalign(64, sizeof(char));
return 0;
}
EOF
$cc -o $TMPO $TMPC 2> /dev/null || _memalign=no
fi
echo "Install prefix $prefix"
echo "C compiler $cc"
echo "CPU $cpu"
echo "MMX enabled $mmx"
echo "gprof enabled $gprof"
echo "grab enabled $grab"
echo "mp3lame enabled $mp3lame"
echo "Creating config.mak and config.h"
echo "# Automatically generated by configure - do not modify" > config.mak
echo "/* Automatically generated by configure - do not modify */" > $TMPH
echo "prefix=$prefix" >> config.mak
echo "MAKE=make" >> config.mak
echo "CC=$cc" >> config.mak
echo "AR=$ar" >> config.mak
echo "OPTFLAGS=$CFLAGS" >> config.mak
if [ "$cpu" = "x86" ] ; then
echo "TARGET_ARCH_X86=yes" >> config.mak
echo "#define ARCH_X86 1" >> $TMPH
fi
if [ "$cpu" = "armv4l" ]; then
echo "TARGET_ARCH_ARMV4L=yes" >> config.mak
echo "#define ARCH_ARMV4L 1" >> $TMPH
fi
if [ "$cpu" = "alpha" ]; then
echo "TARGET_ARCH_ALPHA=yes" >> config.mak
echo "#define ARCH_ALPHA 1" >> $TMPH
fi
if [ "$mmx" = "yes" ] ; then
echo "TARGET_MMX=yes" >> config.mak
echo "#define HAVE_MMX 1" >> $TMPH
fi
if [ "$gprof" = "yes" ] ; then
echo "TARGET_GPROF=yes" >> config.mak
echo "#define HAVE_GPROF 1" >> $TMPH
fi
if [ "$lshared" = "yes" ] ; then
echo "BUILD_SHARED=yes" >> config.mak
else
echo "BUILD_SHARED=no" >> config.mak
fi
echo "EXTRALIBS=$extralibs" >> config.mak
echo -n "VERSION=" >>config.mak
head VERSION >>config.mak
echo "" >>config.mak
# if you do not want to use encoders, disable that.
echo "#define CONFIG_ENCODERS 1" >> $TMPH
echo "CONFIG_ENCODERS=yes" >> config.mak
# if you do not want to use decoders, disable that.
echo "#define CONFIG_DECODERS 1" >> $TMPH
echo "CONFIG_DECODERS=yes" >> config.mak
# special AC3 stuff in case you already have it
# without libavcodec.
echo "#define CONFIG_AC3 1" >> $TMPH
echo "CONFIG_AC3=yes" >> config.mak
if [ "$grab" = "yes" ] ; then
echo "#define CONFIG_GRAB 1" >> $TMPH
echo "CONFIG_GRAB=yes" >> config.mak
fi
if [ "$mp3lame" = "yes" ] ; then
echo "#define CONFIG_MP3LAME 1" >> $TMPH
echo "CONFIG_MP3LAME=yes" >> config.mak
fi
if [ "$win32" = "yes" ] ; then
echo "#define CONFIG_WIN32 1" >> $TMPH
echo "CONFIG_WIN32=yes" >> config.mak
fi
if [ "$_malloc_h" = "yes" ]; then
echo "#define HAVE_MALLOC_H 1" >> $TMPH
else
echo "#undef HAVE_MALLOC_H" >> $TMPH
fi
if [ "$_memalign" = "yes" ]; then
echo "#define HAVE_MEMALIGN 1" >> $TMPH
else
echo "#undef HAVE_MEMALIGN" >> $TMPH
fi
if [ "$simpleidct" = "yes" ]; then
echo "#define SIMPLE_IDCT 1" >> $TMPH
fi
diff -q $TMPH config.h >/dev/null 2>&1
if test $? -ne 0 ; then
mv -f $TMPH config.h
else
echo "config.h is unchanged"
fi
rm -f $TMPO $TMPC $TMPS $TMPH