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|
AC_INIT(fuse-kernel, 2.7.6)
AC_CONFIG_HEADERS([config.h])
AC_PROG_INSTALL
runver=`uname -r`
bad_kernel_version=no
ENABLE_FUSE_MODULE=y
KERNELCFLAGS=
kernelsrc=
kernelbuild=
AC_ARG_WITH(kernel,
[ --with-kernel=PATH Specify location of kernel source ],
[kernelsrc="$withval"; kernelbuild="$withval"])
AC_ARG_WITH(kernel-build,
[ --with-kernel-build=PATH Specify location of kernel build ],
[kernelbuild="$withval"])
AC_ARG_ENABLE(kernel-module,
[ --enable-kernel-module Compile kernel module ])
if test -z "$enable_kernel_module" -a -z "$kernelbuild" && echo "$runver" | grep -q "^2.6"; then
checkmodule=no
AC_MSG_CHECKING([if FUSE is loaded as a module])
if cat /proc/modules | grep -q "^fuse "; then
AC_MSG_RESULT([yes])
checkmodule=yes
else
AC_MSG_RESULT([no])
AC_MSG_CHECKING([if FUSE module is built into the kernel])
if test -e /sys/class/misc/fuse; then
AC_MSG_RESULT([yes])
ENABLE_FUSE_MODULE=n
else
AC_MSG_RESULT([no])
checkmodule=yes
fi
fi
if test "$checkmodule" = yes; then
AC_MSG_CHECKING([if FUSE module is from official kernel])
if test ! -f /lib/modules/${runver}/kernel/fs/fuse/fuse.ko; then
AC_MSG_RESULT([no])
elif fgrep -q "fuse distribution version: " /lib/modules/${runver}/kernel/fs/fuse/fuse.ko 2> /dev/null; then
AC_MSG_RESULT([no])
else
AC_MSG_RESULT([yes])
ENABLE_FUSE_MODULE=n
fi
fi
fi
if test "$ENABLE_FUSE_MODULE" = y; then
AC_MSG_CHECKING([kernel source directory])
if test -z "$kernelsrc"; then
kernelbuild=
sourcelink=/lib/modules/${runver}/source
buildlink=/lib/modules/${runver}/build
if test -e $sourcelink; then
kernelsrc=`(cd $sourcelink; /bin/pwd)`
fi
if test -e $buildlink; then
kernelbuild=`(cd $buildlink; /bin/pwd)`
fi
if test -z "$kernelsrc"; then
kernelsrc=$kernelbuild
fi
if test -z "$kernelsrc" -o -z "$kernelbuild"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Please specify the location of the kernel source with
*** the '--with-kernel=SRCDIR' option])
fi
fi
AC_MSG_RESULT([$kernelsrc])
AC_MSG_CHECKING([kernel build directory])
AC_MSG_RESULT([$kernelbuild])
AC_MSG_CHECKING([kernel source version])
if test -r $kernelbuild/include/linux/version.h && fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
kernsrcver=`(echo "#include <linux/version.h>"; echo "kernsrcver=UTS_RELEASE") | cpp -I $kernelbuild/include | grep "^kernsrcver=" | cut -d \" -f 2`
elif test -r $kernelbuild/include/linux/utsrelease.h && fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
kernsrcver=`(echo "#include <linux/utsrelease.h>"; echo "kernsrcver=UTS_RELEASE") | cpp -I $kernelbuild/include | grep "^kernsrcver=" | cut -d \" -f 2`
fi
if test -z "$kernsrcver"; then
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([
*** Cannot determine the version of the linux kernel source. Please
*** prepare the kernel before running this script])
fi
AC_MSG_RESULT([$kernsrcver])
kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
AC_SUBST(kernelsrc)
AC_SUBST(kmoduledir)
if echo "$kernsrcver" | egrep -q ["^(2.4|2.6.[0-8]([^0-9]|\$))"]; then
bad_kernel_version=yes
AC_MSG_NOTICE([
NOTE: Disabled building the kernel module, because this release only
NOTE: supports Linux versions 2.6.9 or later. You can use the kernel
NOTE: module from an earlier FUSE release with the library from this
NOTE: release.])
else
fuse_configured=no
kernel_autoconf=$kernelbuild/include/linux/autoconf.h
AC_MSG_CHECKING([if FUSE is configured in the kernel])
if test -f $kernel_autoconf; then
if grep -q "^#define CONFIG_FUSE_FS 1" $kernel_autoconf || grep -q "^#define CONFIG_FUSE_FS_MODULE 1" $kernel_autoconf; then
fuse_configured=yes
fi
fi
AC_MSG_RESULT([$fuse_configured])
if test -z "$enable_kernel_module" -a "$fuse_configured" = yes; then
ENABLE_FUSE_MODULE=n
fi
fi
fi
if test "$ENABLE_FUSE_MODULE" = n; then
AC_MSG_NOTICE([
NOTE: Detected that FUSE is already present in the kernel, so
NOTE: building of kernel module is disabled. To force building
NOTE: of kernel module use the '--enable-kernel-module' option.])
fi
if test "$enable_kernel_module" = no; then
ENABLE_FUSE_MODULE=n
fi
if test "$bad_kernel_version" = yes; then
ENABLE_FUSE_MODULE=n
fi
AC_SUBST(ENABLE_FUSE_MODULE)
if test "$ENABLE_FUSE_MODULE" = y; then
AC_MSG_CHECKING([if kernel defines kzalloc function])
if egrep -qw "kzalloc" $kernelsrc/include/linux/slab.h; then
AC_DEFINE(HAVE_KZALLOC, 1, [kzalloc() is defined])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if kernel defines fs_subsys])
if egrep -qw "fs_subsys" $kernelsrc/include/linux/fs.h; then
AC_DEFINE(HAVE_FS_SUBSYS, 1, [fs_subsys is defined])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([whether lookup_instantiate_filp is defined])
if test -f $kernelsrc/include/linux/namei.h && egrep -q "lookup_instantiate_filp" $kernelsrc/include/linux/namei.h; then
AC_DEFINE(HAVE_LOOKUP_INSTANTIATE_FILP, 1, [lookup_instantiate_filp() is defined])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if umount_begin is passed a vfsmount])
if egrep -q "\(\*umount_begin\) *\(struct vfsmount \*" $kernelsrc/include/linux/fs.h; then
AC_DEFINE(UMOUNT_BEGIN_VFSMOUNT, 1, [umount_begin is passed a vfsmount])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if inode has i_blksize field])
if egrep -qw "i_blksize" $kernelsrc/include/linux/fs.h; then
AC_DEFINE(HAVE_I_BLKSIZE, 1, [inode has i_blksize field])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if inode has i_private field])
if egrep -qw "i_private" $kernelsrc/include/linux/fs.h; then
AC_DEFINE(HAVE_I_PRIVATE, 1, [inode has i_private field])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if inode has i_mutex field ])
if egrep -qw "i_mutex" $kernelsrc/include/linux/fs.h; then
AC_DEFINE(HAVE_I_MUTEX, 1, [inode has i_mutex field])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if kernel has mutex.h ])
if test -f $kernelsrc/include/linux/mutex.h; then
AC_DEFINE(HAVE_MUTEX_H, 1, [kernel has mutex.h])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if kernel has exportfs.h ])
if test -f $kernelsrc/include/linux/exportfs.h; then
AC_DEFINE(HAVE_EXPORTFS_H, 1, [kernel has exportfs.h])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
AC_MSG_CHECKING([if kernel has BLOCK option ])
if test -f $kernelsrc/block/Kconfig && egrep -q "config *BLOCK" $kernelsrc/block/Kconfig; then
AC_DEFINE(HAVE_CONFIG_BLOCK, 1, [kernel has BLOCK option])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
isuml=no
KERNELMAKE_PARAMS=
KERNELCPPFLAGS=
AC_MSG_CHECKING([if this is user mode linux])
if test -f $kernelbuild/include/linux/autoconf.h && egrep -q "^#define CONFIG_(USERMODE|UML) 1" $kernelbuild/include/linux/autoconf.h; then
isuml=yes
KERNELMAKE_PARAMS="ARCH=um"
KERNELCPPFLAGS="-D__arch_um__ -DSUBARCH=\\\"i386\\\" -D_LARGEFILE64_SOURCE -I${kernelsrc}/arch/um/include -Derrno=kernel_errno -I${kernelsrc}/arch/um/kernel/tt/include -I${kernelsrc}/arch/um/kernel/skas/include"
fi
AC_MSG_RESULT([$isuml])
if test "$kernelbuild" != "$kernelsrc"; then
KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild"
fi
AC_SUBST(KERNELMAKE_PARAMS)
AC_SUBST(KERNELCPPFLAGS)
AC_SUBST(KERNELCFLAGS)
fi
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
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