diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac new file mode 100644 index 000000000..52bc4f593 --- /dev/null +++ b/configure.ac @@ -0,0 +1,133 @@ +AC_INIT + +AC_CANONICAL_SYSTEM +AM_INIT_AUTOMAKE(spl, 0.0.1) +AC_CONFIG_HEADERS([config.h]) + +AC_PROG_INSTALL +AC_PROG_CC + +ver=`uname -r` +KERNELCFLAGS= + +kernelsrc= +kernelbuild= +AC_ARG_WITH(kernel, + [ --with-linux=PATH Path to kernel source ], + [kernelsrc="$withval"; kernelbuild="$withval"]) +AC_ARG_WITH(kernel-build, + [ --with-linux-obj=PATH Path to kernel build objects ], + [kernelbuild="$withval"]) + +AC_MSG_CHECKING([kernel source directory]) +if test -z "$kernelsrc"; then + kernelbuild= + sourcelink=/lib/modules/${ver}/source + buildlink=/lib/modules/${ver}/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 "$kernelbuild"; then + AC_MSG_RESULT([Not found]) + AC_MSG_ERROR([ + *** Please specify the location of the kernel source + *** with the '--with-kernel=PATH' option]) + fi +fi + +AC_MSG_RESULT([$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) + +# +# Each version of the kernel provides a slightly different +# ABI, so figure out what we have to work with and adapt. +# +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 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 $kernelsrc/include/linux/mutex.h; then + AC_DEFINE(HAVE_MUTEX_H, 1, [kernel has mutex.h]) + AC_MSG_RESULT([yes]) +else + AC_MSG_RESULT([no]) +fi + +if test "$kernelbuild" != "$kernelsrc"; then + KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild" +fi + +AC_SUBST(KERNELMAKE_PARAMS) +AC_SUBST(KERNELCPPFLAGS) +AC_SUBST(KERNELCFLAGS) + +AC_CONFIG_FILES([ Makefile + src/Makefile + src/cmd/Makefile + src/spl/Makefile + src/splat/Makefile + include/Makefile + scripts/Makefile + scripts/spl.spec + ]) + +AC_OUTPUT |