ffmpeg/configure

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#!/bin/sh
TMPC="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.c"
TMPO="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.o"
TMPS="ffmpeg-conf-${RANDOM}-$$-${RANDOM}.S"
if [ ! -z "$TMPDIR" ]; then
TMPC="${TMPDIR}/${TMPC}"
TMPCPP="${TMPDIR}/${TMPCPP}"
TMPO="${TMPDIR}/${TMPO}"
TMPS="${TMPDIR}/${TMPS}"
elif [ ! -z "$TEMPDIR" ]; then
TMPC="${TEMPDIR}/${TMPC}"
TMPCPP="${TEMPDIR}/${TMPCPP}"
TMPO="${TEMPDIR}/${TMPO}"
TMPS="${TEMPDIR}/${TMPS}"
else
TMPC="/tmp/${TMPC}"
TMPCPP="/tmp/${TMPCPP}"
TMPO="/tmp/${TMPO}"
TMPS="/tmp/${TMPS}"
fi
# default parameters
prefix="/usr/local"
cc="gcc"
ar="ar"
cpu=`uname -m`
case "$cpu" in
i386|i486|i586|i686)
cpu="x86"
mmx="yes"
;;
armv4l)
cpu="armv4l"
mmx="no"
;;
*)
mmx="no"
;;
esac
gprof="no"
grab="yes"
win32="no"
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 [$gprof]"
echo " --disable-grab disable audio/video grabbing code"
echo " --enable-win32 enable win32 cross compile"
exit 1
fi
for opt do
case "$opt" in
--prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
;;
--cc=*) cc=`echo $opt | cut -d '=' -f 2`
;;
--cpu=*) cpu=`echo $opt | cut -d '=' -f 2`
;;
--disable-mmx) mmx="no"
;;
--enable-gprof) gprof="yes"
;;
--disable-grab) grab="no"
;;
--enable-win32) win32="yes"
;;
esac
done
# Checking for CFLAGS
if test -z "$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 $grab"
echo "Creating config.mak and config.h"
echo "# Automatically generated by configure - do not modify" > config.mak
echo "/* Automatically generated by configure - do not modify */" > config.h
echo "prefix=$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" >> config.h
fi
if [ "$cpu" = "armv4l" ]; then
echo "TARGET_ARCH_ARMV4L=yes" >> config.mak
echo "#define ARCH_ARMV4L 1" >> config.h
fi
if [ "$mmx" = "yes" ] ; then
echo "TARGET_MMX=yes" >> config.mak
echo "#define HAVE_MMX 1" >> config.h
fi
if [ "$gprof" = "yes" ] ; then
echo "TARGET_GPROF=yes" >> config.mak
echo "#define HAVE_GPROF 1" >> config.h
fi
# if you do not want to use encoders, disable that.
echo "#define CONFIG_ENCODERS 1" >> config.h
echo "CONFIG_ENCODERS=yes" >> config.mak
# if you do not want to use decoders, disable that.
echo "#define CONFIG_DECODERS 1" >> config.h
echo "CONFIG_DECODERS=yes" >> config.mak
# special AC3 stuff in case you already have it
# without libavcodec.
echo "#define CONFIG_AC3 1" >> config.h
echo "CONFIG_AC3=yes" >> config.mak
if [ "$grab" = "yes" ] ; then
echo "#define CONFIG_GRAB 1" >> config.h
echo "CONFIG_GRAB=yes" >> config.mak
fi
if [ "$win32" = "yes" ] ; then
echo "#define CONFIG_WIN32 1" >> config.h
echo "CONFIG_WIN32=yes" >> config.mak
fi
if [ "$_malloc_h" = "yes" ]; then
echo "#define HAVE_MALLOC_H 1" >> config.h
else
echo "#undef HAVE_MALLOC_H" >> config.h
fi
if [ "$_memalign" = "yes" ]; then
echo "#define HAVE_MEMALIGN 1" >> config.h
else
echo "#undef HAVE_MEMALIGN" >> config.h
fi
rm -f $TMPO $TMPC $TMPS