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the directories at the top level but that proved troublesome. The kernel buildsystem and autoconf were conflicting too much. To resolve the issue I moved the kernel bits in to a modules directory which can then only use the kernel build system. We just pass along the likely make targets to the kernel build system. git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@11 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
123 lines
3.2 KiB
Plaintext
123 lines
3.2 KiB
Plaintext
AC_INIT
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AC_CANONICAL_SYSTEM
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AM_INIT_AUTOMAKE(spl, 0.0.1)
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AC_CONFIG_HEADERS([config.h])
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AC_PROG_INSTALL
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AC_PROG_CC
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AC_PROG_LIBTOOL
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ver=`uname -r`
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kernelsrc=
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kernelbuild=
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AC_ARG_WITH(kernel,
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[ --with-linux=PATH Path to kernel source ],
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[kernelsrc="$withval"; kernelbuild="$withval"])
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AC_ARG_WITH(kernel-build,
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[ --with-linux-obj=PATH Path to kernel build objects ],
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[kernelbuild="$withval"])
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AC_MSG_CHECKING([kernel source directory])
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if test -z "$kernelsrc"; then
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kernelbuild=
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sourcelink=/lib/modules/${ver}/source
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buildlink=/lib/modules/${ver}/build
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if test -e $sourcelink; then
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kernelsrc=`(cd $sourcelink; /bin/pwd)`
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fi
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if test -e $buildlink; then
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kernelbuild=`(cd $buildlink; /bin/pwd)`
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fi
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if test -z "$kernelsrc"; then
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kernelsrc=$kernelbuild
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fi
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if test -z "$kernelsrc" -o -z "$kernelbuild"; then
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AC_MSG_RESULT([Not found])
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AC_MSG_ERROR([
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*** Please specify the location of the kernel source
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*** with the '--with-kernel=PATH' option])
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fi
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fi
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AC_MSG_RESULT([$kernelsrc])
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AC_MSG_CHECKING([kernel build directory])
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AC_MSG_RESULT([$kernelbuild])
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AC_MSG_CHECKING([kernel source version])
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if test -r $kernelbuild/include/linux/version.h &&
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fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
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kernsrcver=`(echo "#include <linux/version.h>";
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echo "kernsrcver=UTS_RELEASE") |
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cpp -I $kernelbuild/include |
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grep "^kernsrcver=" | cut -d \" -f 2`
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elif test -r $kernelbuild/include/linux/utsrelease.h &&
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fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
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kernsrcver=`(echo "#include <linux/utsrelease.h>";
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echo "kernsrcver=UTS_RELEASE") |
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cpp -I $kernelbuild/include |
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grep "^kernsrcver=" | cut -d \" -f 2`
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fi
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if test -z "$kernsrcver"; then
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AC_MSG_RESULT([Not found])
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AC_MSG_ERROR([
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*** Cannot determine the version of the linux kernel source.
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*** Please prepare the kernel before running this script])
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fi
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AC_MSG_RESULT([$kernsrcver])
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kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
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AC_SUBST(kernelsrc)
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AC_SUBST(kmoduledir)
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#
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# Each version of the kernel provides a slightly different
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# ABI, so figure out what we have to work with and adapt.
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#
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AC_MSG_CHECKING([if kernel defines kzalloc function])
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if egrep -qw "kzalloc" $kernelsrc/include/linux/slab.h; then
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AC_DEFINE(HAVE_KZALLOC, 1, [kzalloc() is defined])
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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AC_MSG_CHECKING([if kernel has mutex.h ])
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if test -f $kernelsrc/include/linux/mutex.h; then
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AC_DEFINE(HAVE_MUTEX_H, 1, [kernel has mutex.h])
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AC_MSG_RESULT([yes])
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else
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AC_MSG_RESULT([no])
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fi
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# Add "V=1" to KERNELMAKE_PARAMS to enable verbose module build
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KERNELMAKE_PARAMS=
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KERNELCPPFLAGS="-I`/bin/pwd`/include"
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if test "$kernelbuild" != "$kernelsrc"; then
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KERNELMAKE_PARAMS="$KERNELMAKE_PARAMS O=$kernelbuild"
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fi
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AC_SUBST(KERNELMAKE_PARAMS)
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AC_SUBST(KERNELCPPFLAGS)
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AC_SUBST(KERNELCFLAGS)
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AC_CONFIG_FILES([ Makefile
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lib/Makefile
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cmd/Makefile
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modules/Makefile
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modules/spl/Makefile
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modules/splat/Makefile
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include/Makefile
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scripts/Makefile
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scripts/spl.spec
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])
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AC_OUTPUT
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