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AC_INIT
AC_CANONICAL_SYSTEM
AM_INIT_AUTOMAKE(spl, 0.0.1)
AC_CONFIG_HEADERS([config.h])
AC_PROG_INSTALL
AC_PROG_CC
AC_PROG_LIBTOOL
ver=`uname -r`
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 kernel has mutex.h ])
if test -f $kernelsrc/include/linux/mutex.h; then
AC_DEFINE(HAVE_MUTEX_H, 1, [kernel has mutex.h])
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])
fi
# Add "V=1" to KERNELMAKE_PARAMS to enable verbose module build
KERNELMAKE_PARAMS=
KERNELCPPFLAGS="-I`/bin/pwd`/include"
if test "$kernelbuild" != "$kernelsrc"; then
KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild"
fi
AC_SUBST(KERNELMAKE_PARAMS)
AC_SUBST(KERNELCPPFLAGS)
AC_SUBST(KERNELCFLAGS)
AC_CONFIG_FILES([ Makefile
lib/Makefile
cmd/Makefile
modules/Makefile
modules/spl/Makefile
modules/splat/Makefile
include/Makefile
scripts/Makefile
scripts/spl.spec
])
AC_OUTPUT
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