configure

#!/bin/sh

PREFIX=/usr/local
OPT=yes
DBG=yes
PTHREAD=no

config_h=src/config.h


for arg; do
	case "$arg" in
	--prefix=*)
		value=`echo $arg | sed 's/--prefix=//'`
		PREFIX=${value:-$prefix}
		;;
	
	--enable-opt)
		OPT=yes;;
	--disable-opt)
		OPT=no;;

	--enable-debug)
		DBG=yes;;
	--disable-debug)
		DBG=no;;

	--thread-safe)
		PTHREAD=yes;;
	--thread-unsafe)
		PTHREAD=no;;

	--help)
		echo 'usage: ./configure [options]'
		echo 'options:'
		echo '  --prefix=<path>: installation path (default: /usr/local)'
		echo '  --enable-opt: enable speed optimizations (default)'
		echo '  --disable-opt: disable speed optimizations'
		echo '  --enable-debug: include debugging symbols (default)'
		echo '  --disable-debug: do not include debugging symbols'
		echo '  --thread-safe: protect concurrent access to matrix cache'
		echo '  --thread-unsafe: assume only single-threaded operation (default)'
		echo 'all invalid options are silently ignored'
		exit 0
		;;
	esac
done

echo "prefix: $PREFIX"
echo "optimize for speed: $OPT"
echo "include debugging symbols: $DBG"
echo "multi-threading safe: $PTHREAD"

echo 'creating makefile ...'
echo "PREFIX = $PREFIX" >Makefile
if [ "$DBG" = 'yes' ]; then
	echo 'dbg = -g' >>Makefile
fi
if [ "$OPT" = 'yes' ]; then
	echo 'opt = -O3' >>Makefile
fi
if [ "$PTHREAD" = yes ]; then
	echo 'pthr = -lpthread' >>Makefile
	echo 'name = anim-mt' >>Makefile
else
	echo 'name = anim' >>Makefile
fi

cat Makefile.in >>Makefile

echo 'creating config.h ...'
echo '#ifndef ANIM_CONFIG_H_' >src/config.h
echo '#define ANIM_CONFIG_H_' >>src/config.h
echo >>src/config.h
if [ "$PTHREAD" = yes ]; then
	echo '#define ANIM_THREAD_SAFE' >>src/config.h
else
	echo '#undef ANIM_THREAD_SAFE' >>src/config.h
fi
echo >>src/config.h
echo '#endif	/* ANIM_CONFIG_H_ */'>>src/config.h

echo 'configuration completed, type make (or gmake) to build.'