AC_INIT(lib/fuse.c)
AM_INIT_AUTOMAKE(fuse, 1.1-pre2)
AM_CONFIG_HEADER(include/config.h)

AC_PROG_CC
AC_PROG_RANLIB

if test -z "$LD"; then
	LD=ld
fi
AC_SUBST(LD)

CFLAGS="-Wall -W -g -O2"

AC_ARG_ENABLE(kernel-module,
	[  --enable-kernel-module  Compile kernel module, requires --with-kernel option ])
AC_ARG_ENABLE(lib,
	[  --enable-lib            Compile with library ])
AC_ARG_ENABLE(util,
	[  --enable-util           Compile with util ])
AC_ARG_ENABLE(example,
	[  --enable-example        Compile with examples ])

subdirs="include patch"

if test "$enable_kernel_module" != "no"; then
	AC_MSG_CHECKING([kernel source directory])
	kernelsrc=
	AC_ARG_WITH(kernel,
		[  --with-kernel           Specify location of kernel source ],
		[kernelsrc="$withval"])

	if test -z "$kernelsrc"; then
		buildlink=/lib/modules/`uname -r`/build
		if test -e $buildlink; then
			kernelsrc=`(cd $buildlink; /bin/pwd)`
		else
			AC_MSG_RESULT([Not found])
			AC_MSG_ERROR([
*** Please specify the location of the kernel source with
*** the '--with-kernel=SRCDIR' option])
		fi
	fi
	AC_MSG_RESULT([$kernelsrc])

	AC_MSG_CHECKING([kernel source version])
	if test -r $kernelsrc/include/linux/version.h; then
		kernsrcver=`(echo "#include <linux/version.h>"; echo "kernsrcver=UTS_RELEASE") | cpp -I $kernelsrc/include | grep "^kernsrcver=" | cut -d \" -f 2`
	fi
	if test -z "$kernsrcver"; then
		AC_MSG_RESULT([Not found])
		AC_MSG_ERROR([
*** Cannot determine the version of the linux kernel source. Please 
*** configure the kernel before running this script])
	fi
	AC_MSG_RESULT([$kernsrcver])
	majver=`echo "$kernsrcver" | cut -f-2 -d.`
	kmoduledir=/lib/modules/$kernsrcver
	AC_SUBST(kernelsrc)
	AC_SUBST(majver)
	AC_SUBST(kmoduledir)
	subdirs="$subdirs kernel"
fi

if test "$enable_lib" != "no"; then
	subdirs="$subdirs lib";
fi
if test "$enable_util" != "no"; then
	subdirs="$subdirs util";
fi
if test "$enable_example" != "no"; then
	subdirs="$subdirs example";
fi

AC_SUBST(subdirs)

AC_OUTPUT([Makefile kernel/Makefile lib/Makefile util/Makefile example/Makefile include/Makefile include/linux/Makefile patch/Makefile])