X-Git-Url: https://granicus.if.org/sourcecode?a=blobdiff_plain;f=config%2Fzfs-build.m4;h=91fe04844501c87d1c87c6fad659fc0eefee3aac;hb=HEAD;hp=5eebdd48e276037bfd5943c9dbc0aae9ec155d3f;hpb=a54f863a14edbbd2c5bd14774c8f1ead32ed7bf5;p=zfs

diff --git a/config/zfs-build.m4 b/config/zfs-build.m4
index 5eebdd48e..91fe04844 100644
--- a/config/zfs-build.m4
+++ b/config/zfs-build.m4
@@ -1,378 +1,511 @@
-AC_DEFUN([ZFS_AC_CONFIG], [
+AC_DEFUN([ZFS_AC_LICENSE], [
+	AC_MSG_CHECKING([zfs author])
+	AC_MSG_RESULT([$ZFS_META_AUTHOR])
 
-	AC_ARG_WITH([zfs-config],
-		AS_HELP_STRING([--with-config=CONFIG],
-		[Config file 'kernel|user|lustre']),
-		[zfsconfig="$withval"])
+	AC_MSG_CHECKING([zfs license])
+	AC_MSG_RESULT([$ZFS_META_LICENSE])
+])
 
-	AC_MSG_CHECKING([zfs config file])
-	if test -z "$zfsconfig" || test ! -r config/$zfsconfig; then
-		AC_MSG_RESULT([no])
-		AC_MSG_ERROR([
-	        *** Please specify one of the valid config files located
-	        *** in ./config/ with the '--with-zfs-config=CONFIG' option])
-	fi
+AC_DEFUN([ZFS_AC_DEBUG_ENABLE], [
+	DEBUG_CFLAGS="-Werror"
+	DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
+	DEBUG_LDFLAGS=""
+	DEBUG_ZFS="_with_debug"
+	AC_DEFINE(ZFS_DEBUG, 1, [zfs debugging enabled])
 
-	AC_MSG_RESULT([$zfsconfig]);
-	. ./config/$zfsconfig
+	KERNEL_DEBUG_CFLAGS="-Werror"
+	KERNEL_DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
+])
 
-	TOPDIR=`/bin/pwd`
-	ZFSDIR=${TOPDIR}/$BUILDDIR
-	LIBDIR=$ZFSDIR/lib
-	CMDDIR=$ZFSDIR/zcmd
+AC_DEFUN([ZFS_AC_DEBUG_DISABLE], [
+	DEBUG_CFLAGS=""
+	DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
+	DEBUG_LDFLAGS=""
+	DEBUG_ZFS="_without_debug"
 
-	AC_SUBST(TOPDIR)
-	AC_SUBST(ZFSDIR)
-	AC_SUBST(LIBDIR)
-	AC_SUBST(CMDDIR)
+	KERNEL_DEBUG_CFLAGS=""
+	KERNEL_DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
 ])
 
-AC_DEFUN([ZFS_AC_KERNEL], [
-	ver=`uname -r`
-
-	AC_ARG_WITH([linux],
-		AS_HELP_STRING([--with-linux=PATH],
-		[Path to kernel source]),
-		[kernelsrc="$withval"; kernelbuild="$withval"])
-
-	AC_ARG_WITH(linux-obj,
-		AS_HELP_STRING([--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 "$kernelbuild"; then
-			AC_MSG_RESULT([Not found])
-			AC_MSG_ERROR([
-			*** Please specify the location of the kernel source
-			*** with the '--with-linux=PATH' option])
-		fi
-	fi
+dnl #
+dnl # When debugging is enabled:
+dnl # - Enable all ASSERTs (-DDEBUG)
+dnl # - Promote all compiler warnings to errors (-Werror)
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG], [
+	AC_MSG_CHECKING([whether assertion support will be enabled])
+	AC_ARG_ENABLE([debug],
+		[AS_HELP_STRING([--enable-debug],
+		[Enable compiler and code assertions @<:@default=no@:>@])],
+		[],
+		[enable_debug=no])
+
+	AS_CASE(["x$enable_debug"],
+		["xyes"],
+		[ZFS_AC_DEBUG_ENABLE],
+		["xno"],
+		[ZFS_AC_DEBUG_DISABLE],
+		[AC_MSG_ERROR([Unknown option $enable_debug])])
+
+	AC_SUBST(DEBUG_CFLAGS)
+	AC_SUBST(DEBUG_CPPFLAGS)
+	AC_SUBST(DEBUG_LDFLAGS)
+	AC_SUBST(DEBUG_ZFS)
+
+	AC_SUBST(KERNEL_DEBUG_CFLAGS)
+	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+
+	AC_MSG_RESULT([$enable_debug])
+])
 
-	AC_MSG_RESULT([$kernelsrc])
-	AC_MSG_CHECKING([kernel build directory])
-	AC_MSG_RESULT([$kernelbuild])
+AC_DEFUN([ZFS_AC_DEBUGINFO_ENABLE], [
+	DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline"
 
-	AC_MSG_CHECKING([kernel source version])
-	if test -r $kernelbuild/include/linux/version.h && 
-		fgrep -q UTS_RELEASE $kernelbuild/include/linux/version.h; then
+	KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline"
+	KERNEL_MAKE="$KERNEL_MAKE CONFIG_DEBUG_INFO=y"
 
-		kernsrcver=`(echo "#include <linux/version.h>"; 
-		             echo "kernsrcver=UTS_RELEASE") | 
-		             cpp -I $kernelbuild/include |
-		             grep "^kernsrcver=" | cut -d \" -f 2`
+	DEBUGINFO_ZFS="_with_debuginfo"
+])
 
-	elif test -r $kernelbuild/include/linux/utsrelease.h && 
-		fgrep -q UTS_RELEASE $kernelbuild/include/linux/utsrelease.h; then
+AC_DEFUN([ZFS_AC_DEBUGINFO_DISABLE], [
+	DEBUGINFO_ZFS="_without_debuginfo"
+])
 
-		kernsrcver=`(echo "#include <linux/utsrelease.h>"; 
-		             echo "kernsrcver=UTS_RELEASE") | 
-	        	     cpp -I $kernelbuild/include |
-		             grep "^kernsrcver=" | cut -d \" -f 2`
-	fi
+AC_DEFUN([ZFS_AC_DEBUGINFO], [
+	AC_MSG_CHECKING([whether debuginfo support will be forced])
+	AC_ARG_ENABLE([debuginfo],
+		[AS_HELP_STRING([--enable-debuginfo],
+		[Force generation of debuginfo @<:@default=no@:>@])],
+		[],
+		[enable_debuginfo=no])
 
-	if test -z "$kernsrcver"; then
-		AC_MSG_RESULT([Not found])
-		AC_MSG_ERROR([
-		*** Cannot determine the version of the linux kernel source.
-		*** Please prepare the kernel before running this script])
-	fi
+	AS_CASE(["x$enable_debuginfo"],
+		["xyes"],
+		[ZFS_AC_DEBUGINFO_ENABLE],
+		["xno"],
+		[ZFS_AC_DEBUGINFO_DISABLE],
+		[AC_MSG_ERROR([Unknown option $enable_debuginfo])])
 
-	AC_MSG_RESULT([$kernsrcver])
+	AC_SUBST(DEBUG_CFLAGS)
+	AC_SUBST(DEBUGINFO_ZFS)
 
-	kmoduledir=${INSTALL_MOD_PATH}/lib/modules/$kernsrcver
-        LINUX=${kernelsrc}
-        LINUX_OBJ=${kernelbuild}
+	AC_SUBST(KERNEL_DEBUG_CFLAGS)
+	AC_SUBST(KERNEL_MAKE)
 
-	AC_SUBST(LINUX)
-	AC_SUBST(LINUX_OBJ)
-	AC_SUBST(kmoduledir)
+	AC_MSG_RESULT([$enable_debuginfo])
 ])
 
-AC_DEFUN([ZFS_AC_SPL], [
-
-	AC_ARG_WITH([spl],
-		AS_HELP_STRING([--with-spl=PATH],
-		[Path to spl source]),
-		[splsrc="$withval"; splbuild="$withval"])
-
-	AC_ARG_WITH([spl-obj],
-		AS_HELP_STRING([--with-spl-obj=PATH],
-		[Path to spl build objects]),
-		[splbuild="$withval"])
-
-
-	AC_MSG_CHECKING([spl source directory])
-	if test -z "$splsrc"; then
-		splbuild=
-		sourcelink=/tmp/`whoami`/spl
-		buildlink=/tmp/`whoami`/spl
-
-		if test -e $sourcelink; then
-			splsrc=`(cd $sourcelink; /bin/pwd)`
-		fi
-		if test -e $buildlink; then
-			splbuild=`(cd $buildlink; /bin/pwd)`
-		fi
-		if test -z "$splsrc"; then
-			splsrc=$splbuild
-		fi
-	fi
+dnl #
+dnl # Disabled by default, provides basic memory tracking.  Track the total
+dnl # number of bytes allocated with kmem_alloc() and freed with kmem_free().
+dnl # Then at module unload time if any bytes were leaked it will be reported
+dnl # on the console.
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG_KMEM], [
+	AC_MSG_CHECKING([whether basic kmem accounting is enabled])
+	AC_ARG_ENABLE([debug-kmem],
+		[AS_HELP_STRING([--enable-debug-kmem],
+		[Enable basic kmem accounting @<:@default=no@:>@])],
+		[],
+		[enable_debug_kmem=no])
+
+	AS_IF([test "x$enable_debug_kmem" = xyes], [
+		KERNEL_DEBUG_CPPFLAGS+=" -DDEBUG_KMEM"
+		DEBUG_KMEM_ZFS="_with_debug_kmem"
+	], [
+		DEBUG_KMEM_ZFS="_without_debug_kmem"
+	])
 
-	if test -z "$splsrc" -o -z "$splbuild"; then
-		sourcelink=/lib/modules/${ver}/source
-		buildlink=/lib/modules/${ver}/build
-
-		if test -e $sourcelink; then
-			splsrc=`(cd $sourcelink; /bin/pwd)`
-		fi
-		if test -e $buildlink; then
-			splbuild=`(cd $buildlink; /bin/pwd)`
-		fi
-		if test -z "$splsrc"; then
-			splsrc=$splbuild
-		fi
-		if test -z "$splsrc" -o -z "$splbuild"; then
-			AC_MSG_RESULT([Not found])
-			AC_MSG_ERROR([
-			*** Please specify the location of the spl source
-			*** with the '--with-spl=PATH' option])
-		fi
-	fi
+	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+	AC_SUBST(DEBUG_KMEM_ZFS)
 
-	AC_MSG_RESULT([$splsrc])
-	AC_MSG_CHECKING([spl build directory])
-	AC_MSG_RESULT([$splbuild])
+	AC_MSG_RESULT([$enable_debug_kmem])
+])
 
-	AC_MSG_CHECKING([spl source version])
-	if test -r $splbuild/spl_config.h && 
-		fgrep -q VERSION $splbuild/spl_config.h; then
+dnl #
+dnl # Disabled by default, provides detailed memory tracking.  This feature
+dnl # also requires --enable-debug-kmem to be set.  When enabled not only will
+dnl # total bytes be tracked but also the location of every kmem_alloc() and
+dnl # kmem_free().  When the module is unloaded a list of all leaked addresses
+dnl # and where they were allocated will be dumped to the console.  Enabling
+dnl # this feature has a significant impact on performance but it makes finding
+dnl # memory leaks straight forward.
+dnl #
+AC_DEFUN([ZFS_AC_DEBUG_KMEM_TRACKING], [
+	AC_MSG_CHECKING([whether detailed kmem tracking is enabled])
+	AC_ARG_ENABLE([debug-kmem-tracking],
+		[AS_HELP_STRING([--enable-debug-kmem-tracking],
+		[Enable detailed kmem tracking  @<:@default=no@:>@])],
+		[],
+		[enable_debug_kmem_tracking=no])
+
+	AS_IF([test "x$enable_debug_kmem_tracking" = xyes], [
+		KERNEL_DEBUG_CPPFLAGS+=" -DDEBUG_KMEM_TRACKING"
+		DEBUG_KMEM_TRACKING_ZFS="_with_debug_kmem_tracking"
+	], [
+		DEBUG_KMEM_TRACKING_ZFS="_without_debug_kmem_tracking"
+	])
 
-		splsrcver=`(echo "#include <spl_config.h>"; 
-		            echo "splsrcver=VERSION") | 
-		            cpp -I $splbuild |
-	        	    grep "^splsrcver=" | cut -d \" -f 2`
-	fi
+	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
+	AC_SUBST(DEBUG_KMEM_TRACKING_ZFS)
 
-	if test -z "$splsrcver"; then
-		AC_MSG_RESULT([Not found])
-		AC_MSG_ERROR([
-		*** Cannot determine the version of the spl source. 
-		*** Please prepare the spl source before running this script])
-	fi
+	AC_MSG_RESULT([$enable_debug_kmem_tracking])
+])
 
-	AC_MSG_RESULT([$splsrcver])
+AC_DEFUN([ZFS_AC_CONFIG_ALWAYS], [
+	ZFS_AC_CONFIG_ALWAYS_CC_NO_UNUSED_BUT_SET_VARIABLE
+	ZFS_AC_CONFIG_ALWAYS_CC_NO_BOOL_COMPARE
+	ZFS_AC_CONFIG_ALWAYS_CC_FRAME_LARGER_THAN
+	ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_TRUNCATION
+	ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER
+	ZFS_AC_CONFIG_ALWAYS_CC_ASAN
+	ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD
+	ZFS_AC_CONFIG_ALWAYS_SYSTEM
+	ZFS_AC_CONFIG_ALWAYS_ARCH
+	ZFS_AC_CONFIG_ALWAYS_PYTHON
+	ZFS_AC_CONFIG_ALWAYS_PYZFS
+	ZFS_AC_CONFIG_ALWAYS_SED
+])
 
-	AC_MSG_CHECKING([spl Module.symvers])
-	if test -r $splbuild/modules/Module.symvers; then
-		splsymvers=$splbuild/modules/Module.symvers
-	elif test -r $kernelbuild/Module.symvers; then
-		splsymvers=$kernelbuild/Module.symvers
-	fi
+AC_DEFUN([ZFS_AC_CONFIG], [
+
+        dnl # Remove the previous build test directory.
+        rm -Rf build
 
-	if test -z "$splsymvers"; then
-	        AC_MSG_RESULT([Not found])
-	        AC_MSG_ERROR([
-                *** Cannot find extra Module.symvers in the spl source.
-                *** Please prepare the spl source before running this script])
+	AC_ARG_VAR([TEST_JOBS],
+	    [simultaneous jobs during configure (defaults to $(nproc))])
+	if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
+		TEST_JOBS=$(nproc)
 	fi
+	AC_SUBST(TEST_JOBS)
 
-	AC_MSG_RESULT([$splsymvers])
-	AC_SUBST(splsrc)
-	AC_SUBST(splsymvers)
+	ZFS_CONFIG=all
+	AC_ARG_WITH([config],
+		AS_HELP_STRING([--with-config=CONFIG],
+		[Config file 'kernel|user|all|srpm']),
+		[ZFS_CONFIG="$withval"])
+	AC_ARG_ENABLE([linux-builtin],
+		[AC_HELP_STRING([--enable-linux-builtin],
+		[Configure for builtin in-tree kernel modules @<:@default=no@:>@])],
+		[],
+		[enable_linux_builtin=no])
+
+	AC_MSG_CHECKING([zfs config])
+	AC_MSG_RESULT([$ZFS_CONFIG]);
+	AC_SUBST(ZFS_CONFIG)
+
+	ZFS_AC_CONFIG_ALWAYS
+
+	case "$ZFS_CONFIG" in
+		kernel) ZFS_AC_CONFIG_KERNEL ;;
+		user)	ZFS_AC_CONFIG_USER   ;;
+		all)    ZFS_AC_CONFIG_USER
+			ZFS_AC_CONFIG_KERNEL ;;
+		srpm)                        ;;
+		*)
+		AC_MSG_RESULT([Error!])
+		AC_MSG_ERROR([Bad value "$ZFS_CONFIG" for --with-config,
+		              user kernel|user|all|srpm]) ;;
+	esac
+
+	AM_CONDITIONAL([CONFIG_USER],
+	    [test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all])
+	AM_CONDITIONAL([CONFIG_KERNEL],
+	    [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+	    [test "x$enable_linux_builtin" != xyes ])
+	AM_CONDITIONAL([CONFIG_QAT],
+	    [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
+	    [test "x$qatsrc" != x ])
+	AM_CONDITIONAL([WANT_DEVNAME2DEVID], [test "x$user_libudev" = xyes ])
+	AM_CONDITIONAL([WANT_MMAP_LIBAIO], [test "x$user_libaio" = xyes ])
 ])
 
-AC_DEFUN([ZFS_AC_LICENSE], [
-        AC_MSG_CHECKING([license])
-        AC_MSG_RESULT([CDDL])
-dnl #        AC_DEFINE([HAVE_GPL_ONLY_SYMBOLS], [1],
-dnl #                [Define to 1 if module is licensed under the GPL])
-])
+dnl #
+dnl # Check for rpm+rpmbuild to build RPM packages.  If these tools
+dnl # are missing it is non-fatal but you will not be able to build
+dnl # RPM packages and will be warned if you try too.
+dnl #
+dnl # By default the generic spec file will be used because it requires
+dnl # minimal dependencies.  Distribution specific spec files can be
+dnl # placed under the 'rpm/<distribution>' directory and enabled using
+dnl # the --with-spec=<distribution> configure option.
+dnl #
+AC_DEFUN([ZFS_AC_RPM], [
+	RPM=rpm
+	RPMBUILD=rpmbuild
+
+	AC_MSG_CHECKING([whether $RPM is available])
+	AS_IF([tmp=$($RPM --version 2>/dev/null)], [
+		RPM_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }')
+		HAVE_RPM=yes
+		AC_MSG_RESULT([$HAVE_RPM ($RPM_VERSION)])
+	],[
+		HAVE_RPM=no
+		AC_MSG_RESULT([$HAVE_RPM])
+	])
 
-AC_DEFUN([ZFS_AC_DEBUG], [
-        AC_MSG_CHECKING([whether debugging is enabled])
-        AC_ARG_ENABLE( [debug],
-                AS_HELP_STRING([--enable-debug],
-                [Enable generic debug support (default off)]),
-                [ case "$enableval" in
-                        yes) zfs_ac_debug=yes ;;
-                        no)  zfs_ac_debug=no  ;;
-                        *) AC_MSG_RESULT([Error!])
-                        AC_MSG_ERROR([Bad value "$enableval" for --enable-debug]) ;;
-                esac ]
-        )
-        if test "$zfs_ac_debug" = yes; then
-        	AC_MSG_RESULT([yes])
-                KERNELCPPFLAGS="${KERNELCPPFLAGS} -DDEBUG "
-		HOSTCFLAGS="${HOSTCFLAGS} -DDEBUG "
-        else
-        	AC_MSG_RESULT([no])
-                AC_DEFINE([NDEBUG], [1],
-                [Define to 1 to disable debug tracing])
-                KERNELCPPFLAGS="${KERNELCPPFLAGS} -DNDEBUG "
-		HOSTCFLAGS="${HOSTCFLAGS} -DNDEBUG "
-        fi
-])
+	AC_MSG_CHECKING([whether $RPMBUILD is available])
+	AS_IF([tmp=$($RPMBUILD --version 2>/dev/null)], [
+		RPMBUILD_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }')
+		HAVE_RPMBUILD=yes
+		AC_MSG_RESULT([$HAVE_RPMBUILD ($RPMBUILD_VERSION)])
+	],[
+		HAVE_RPMBUILD=no
+		AC_MSG_RESULT([$HAVE_RPMBUILD])
+	])
 
-AC_DEFUN([ZFS_AC_SCRIPT_CONFIG], [
-	SCRIPT_CONFIG=.script-config
-	rm -f ${SCRIPT_CONFIG}
-	echo "KERNELSRC=${LINUX}"         >>${SCRIPT_CONFIG}
-	echo "KERNELBUILD=${LINUX_OBJ}"   >>${SCRIPT_CONFIG}
-	echo "KERNELSRCVER=$kernsrcver"   >>${SCRIPT_CONFIG}
-	echo                              >>${SCRIPT_CONFIG}
-	echo "SPLSRC=$splsrc"             >>${SCRIPT_CONFIG}
-	echo "SPLBUILD=$splbuild"         >>${SCRIPT_CONFIG}
-	echo "SPLSRCVER=$splsrcver"       >>${SCRIPT_CONFIG}
-	echo "SPLSYMVERS=$splsymvers"     >>${SCRIPT_CONFIG}
-	echo                              >>${SCRIPT_CONFIG}
-	echo "ZFSSRC=${TOPDIR}/src"       >>${SCRIPT_CONFIG}
-	echo "ZFSBUILD=${ZFSDIR}"         >>${SCRIPT_CONFIG}
-	echo                              >>${SCRIPT_CONFIG}
-	echo "TOPDIR=${TOPDIR}            >>${SCRIPT_CONFIG}
-	echo "LIBDIR=${LIBDIR}            >>${SCRIPT_CONFIG}
-	echo "CMDDIR=${CMDDIR}            >>${SCRIPT_CONFIG}
-])
+	RPM_DEFINE_COMMON='--define "$(DEBUG_ZFS) 1"'
+	RPM_DEFINE_COMMON+=' --define "$(DEBUG_KMEM_ZFS) 1"'
+	RPM_DEFINE_COMMON+=' --define "$(DEBUG_KMEM_TRACKING_ZFS) 1"'
+	RPM_DEFINE_COMMON+=' --define "$(DEBUGINFO_ZFS) 1"'
+	RPM_DEFINE_COMMON+=' --define "$(ASAN_ZFS) 1"'
+
+	RPM_DEFINE_UTIL=' --define "_initconfdir $(DEFAULT_INITCONF_DIR)"'
+
+	dnl # Make the next three RPM_DEFINE_UTIL additions conditional, since
+	dnl # their values may not be set when running:
+	dnl #
+	dnl #	./configure --with-config=srpm
+	dnl #
+	AS_IF([test -n "$dracutdir" ], [
+		RPM_DEFINE_UTIL='--define "_dracutdir $(dracutdir)"'
+	])
+	AS_IF([test -n "$udevdir" ], [
+		RPM_DEFINE_UTIL+=' --define "_udevdir $(udevdir)"'
+	])
+	AS_IF([test -n "$udevruledir" ], [
+		RPM_DEFINE_UTIL+=' --define "_udevdir $(udevruledir)"'
+	])
+	RPM_DEFINE_UTIL+=' $(DEFINE_INITRAMFS)'
+	RPM_DEFINE_UTIL+=' $(DEFINE_SYSTEMD)'
+	RPM_DEFINE_UTIL+=' $(DEFINE_PYZFS)'
+	RPM_DEFINE_UTIL+=' $(DEFINE_PYTHON_VERSION)'
+	RPM_DEFINE_UTIL+=' $(DEFINE_PYTHON_PKG_VERSION)'
+
+	dnl # Override default lib directory on Debian/Ubuntu systems.  The
+	dnl # provided /usr/lib/rpm/platform/<arch>/macros files do not
+	dnl # specify the correct path for multiarch systems as described
+	dnl # by the packaging guidelines.
+	dnl #
+	dnl # https://wiki.ubuntu.com/MultiarchSpec
+	dnl # https://wiki.debian.org/Multiarch/Implementation
+	dnl #
+	AS_IF([test "$DEFAULT_PACKAGE" = "deb"], [
+		MULTIARCH_LIBDIR="lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
+		RPM_DEFINE_UTIL+=' --define "_lib $(MULTIARCH_LIBDIR)"'
+		AC_SUBST(MULTIARCH_LIBDIR)
+	])
 
-dnl #
-dnl # ZFS_LINUX_CONFTEST
-dnl #
-AC_DEFUN([ZFS_LINUX_CONFTEST], [
-cat >conftest.c <<_ACEOF
-$1
-_ACEOF
+	RPM_DEFINE_KMOD='--define "kernels $(LINUX_VERSION)"'
+	RPM_DEFINE_KMOD+=' --define "ksrc $(LINUX)"'
+	RPM_DEFINE_KMOD+=' --define "kobj $(LINUX_OBJ)"'
+	RPM_DEFINE_KMOD+=' --define "_wrong_version_format_terminate_build 0"'
+
+	RPM_DEFINE_DKMS=''
+
+	SRPM_DEFINE_COMMON='--define "build_src_rpm 1"'
+	SRPM_DEFINE_UTIL=
+	SRPM_DEFINE_KMOD=
+	SRPM_DEFINE_DKMS=
+
+	RPM_SPEC_DIR="rpm/generic"
+	AC_ARG_WITH([spec],
+		AS_HELP_STRING([--with-spec=SPEC],
+		[Spec files 'generic|redhat']),
+		[RPM_SPEC_DIR="rpm/$withval"])
+
+	AC_MSG_CHECKING([whether spec files are available])
+	AC_MSG_RESULT([yes ($RPM_SPEC_DIR/*.spec.in)])
+
+	AC_SUBST(HAVE_RPM)
+	AC_SUBST(RPM)
+	AC_SUBST(RPM_VERSION)
+
+	AC_SUBST(HAVE_RPMBUILD)
+	AC_SUBST(RPMBUILD)
+	AC_SUBST(RPMBUILD_VERSION)
+
+	AC_SUBST(RPM_SPEC_DIR)
+	AC_SUBST(RPM_DEFINE_UTIL)
+	AC_SUBST(RPM_DEFINE_KMOD)
+	AC_SUBST(RPM_DEFINE_DKMS)
+	AC_SUBST(RPM_DEFINE_COMMON)
+	AC_SUBST(SRPM_DEFINE_UTIL)
+	AC_SUBST(SRPM_DEFINE_KMOD)
+	AC_SUBST(SRPM_DEFINE_DKMS)
+	AC_SUBST(SRPM_DEFINE_COMMON)
 ])
 
 dnl #
-dnl # ZFS_LANG_PROGRAM(C)([PROLOGUE], [BODY])
+dnl # Check for dpkg+dpkg-buildpackage to build DEB packages.  If these
+dnl # tools are missing it is non-fatal but you will not be able to build
+dnl # DEB packages and will be warned if you try too.
 dnl #
-m4_define([ZFS_LANG_PROGRAM], [
-$1
-int
-main (void)
-{
-dnl Do *not* indent the following line: there may be CPP directives.
-dnl Don't move the `;' right after for the same reason.
-$2
-  ;
-  return 0;
-}
-])
+AC_DEFUN([ZFS_AC_DPKG], [
+	DPKG=dpkg
+	DPKGBUILD=dpkg-buildpackage
+
+	AC_MSG_CHECKING([whether $DPKG is available])
+	AS_IF([tmp=$($DPKG --version 2>/dev/null)], [
+		DPKG_VERSION=$(echo $tmp | $AWK '/Debian/ { print $[7] }')
+		HAVE_DPKG=yes
+		AC_MSG_RESULT([$HAVE_DPKG ($DPKG_VERSION)])
+	],[
+		HAVE_DPKG=no
+		AC_MSG_RESULT([$HAVE_DPKG])
+	])
 
-dnl #
-dnl # ZFS_LINUX_COMPILE_IFELSE / like AC_COMPILE_IFELSE
-dnl #
-AC_DEFUN([ZFS_LINUX_COMPILE_IFELSE], [
-m4_ifvaln([$1], [ZFS_LINUX_CONFTEST([$1])])dnl
-rm -f build/conftest.o build/conftest.mod.c build/conftest.ko build/Makefile
-echo "obj-m := conftest.o" >build/Makefile
-dnl AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" -f $PWD/build/Makefile LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM SUBDIRS=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
-AS_IF([AC_TRY_COMMAND(cp conftest.c build && make [$2] CC="$CC" LINUXINCLUDE="-Iinclude -include include/linux/autoconf.h" -o tmp_include_depends -o scripts -o include/config/MARKER -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build) >/dev/null && AC_TRY_COMMAND([$3])],
-        [$4],
-        [_AC_MSG_LOG_CONFTEST
-m4_ifvaln([$5],[$5])dnl])dnl
-rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.ko m4_ifval([$1], [build/conftest.c conftest.c])[]dnl
-])
+	AC_MSG_CHECKING([whether $DPKGBUILD is available])
+	AS_IF([tmp=$($DPKGBUILD --version 2>/dev/null)], [
+		DPKGBUILD_VERSION=$(echo $tmp | \
+		    $AWK '/Debian/ { print $[4] }' | cut -f-4 -d'.')
+		HAVE_DPKGBUILD=yes
+		AC_MSG_RESULT([$HAVE_DPKGBUILD ($DPKGBUILD_VERSION)])
+	],[
+		HAVE_DPKGBUILD=no
+		AC_MSG_RESULT([$HAVE_DPKGBUILD])
+	])
 
-dnl #
-dnl # ZFS_LINUX_TRY_COMPILE like AC_TRY_COMPILE
-dnl #
-AC_DEFUN([ZFS_LINUX_TRY_COMPILE],
-	[ZFS_LINUX_COMPILE_IFELSE(
-        [AC_LANG_SOURCE([ZFS_LANG_PROGRAM([[$1]], [[$2]])])],
-        [modules],
-        [test -s build/conftest.o],
-        [$3], [$4])
+	AC_SUBST(HAVE_DPKG)
+	AC_SUBST(DPKG)
+	AC_SUBST(DPKG_VERSION)
+
+	AC_SUBST(HAVE_DPKGBUILD)
+	AC_SUBST(DPKGBUILD)
+	AC_SUBST(DPKGBUILD_VERSION)
 ])
 
 dnl #
-dnl # ZFS_LINUX_CONFIG
+dnl # Until native packaging for various different packing systems
+dnl # can be added the least we can do is attempt to use alien to
+dnl # convert the RPM packages to the needed package type.  This is
+dnl # a hack but so far it has worked reasonable well.
 dnl #
-AC_DEFUN([ZFS_LINUX_CONFIG],
-	[AC_MSG_CHECKING([whether Linux was built with CONFIG_$1])
-	ZFS_LINUX_TRY_COMPILE([
-		#ifndef AUTOCONF_INCLUDED
-		#include <linux/config.h>
-		#endif
+AC_DEFUN([ZFS_AC_ALIEN], [
+	ALIEN=alien
+
+	AC_MSG_CHECKING([whether $ALIEN is available])
+	AS_IF([tmp=$($ALIEN --version 2>/dev/null)], [
+		ALIEN_VERSION=$(echo $tmp | $AWK '{ print $[3] }')
+		HAVE_ALIEN=yes
+		AC_MSG_RESULT([$HAVE_ALIEN ($ALIEN_VERSION)])
 	],[
-		#ifndef CONFIG_$1
-		#error CONFIG_$1 not #defined
-		#endif
-	],[
-		AC_MSG_RESULT([yes])
-		$2
-	],[
-		AC_MSG_RESULT([no])
-		$3
+		HAVE_ALIEN=no
+		AC_MSG_RESULT([$HAVE_ALIEN])
 	])
+
+	AC_SUBST(HAVE_ALIEN)
+	AC_SUBST(ALIEN)
+	AC_SUBST(ALIEN_VERSION)
 ])
 
 dnl #
-dnl # ZFS_CHECK_SYMBOL_EXPORT
-dnl # check symbol exported or not
+dnl # Using the VENDOR tag from config.guess set the default
+dnl # package type for 'make pkg': (rpm | deb | tgz)
 dnl #
-AC_DEFUN([ZFS_CHECK_SYMBOL_EXPORT],
-	[AC_MSG_CHECKING([whether symbol $1 is exported])
-	grep -q -E '[[[:space:]]]$1[[[:space:]]]' $LINUX/Module.symvers 2>/dev/null
-	rc=$?
-	if test $rc -ne 0; then
-		export=0
-		for file in $2; do
-			grep -q -E "EXPORT_SYMBOL.*($1)" "$LINUX/$file" 2>/dev/null
-			rc=$?
-		        if test $rc -eq 0; then
-		                export=1
-		                break;
-		        fi
-		done
-		if test $export -eq 0; then
-			AC_MSG_RESULT([no])
-			$4
-		else
-			AC_MSG_RESULT([yes])
-			$3
-		fi
+AC_DEFUN([ZFS_AC_DEFAULT_PACKAGE], [
+	AC_MSG_CHECKING([linux distribution])
+	if test -f /etc/toss-release ; then
+		VENDOR=toss ;
+	elif test -f /etc/fedora-release ; then
+		VENDOR=fedora ;
+	elif test -f /etc/redhat-release ; then
+		VENDOR=redhat ;
+	elif test -f /etc/gentoo-release ; then
+		VENDOR=gentoo ;
+	elif test -f /etc/arch-release ; then
+		VENDOR=arch ;
+	elif test -f /etc/SuSE-release ; then
+		VENDOR=sles ;
+	elif test -f /etc/slackware-version ; then
+		VENDOR=slackware ;
+	elif test -f /etc/lunar.release ; then
+		VENDOR=lunar ;
+	elif test -f /etc/lsb-release ; then
+		VENDOR=ubuntu ;
+	elif test -f /etc/debian_version ; then
+		VENDOR=debian ;
+	elif test -f /etc/alpine-release ; then
+		VENDOR=alpine ;
 	else
+		VENDOR= ;
+	fi
+	AC_MSG_RESULT([$VENDOR])
+	AC_SUBST(VENDOR)
+
+	AC_MSG_CHECKING([default package type])
+	case "$VENDOR" in
+		toss)       DEFAULT_PACKAGE=rpm  ;;
+		redhat)     DEFAULT_PACKAGE=rpm  ;;
+		fedora)     DEFAULT_PACKAGE=rpm  ;;
+		gentoo)     DEFAULT_PACKAGE=tgz  ;;
+		alpine)     DEFAULT_PACKAGE=tgz  ;;
+		arch)       DEFAULT_PACKAGE=tgz  ;;
+		sles)       DEFAULT_PACKAGE=rpm  ;;
+		slackware)  DEFAULT_PACKAGE=tgz  ;;
+		lunar)      DEFAULT_PACKAGE=tgz  ;;
+		ubuntu)     DEFAULT_PACKAGE=deb  ;;
+		debian)     DEFAULT_PACKAGE=deb  ;;
+		*)          DEFAULT_PACKAGE=rpm  ;;
+	esac
+	AC_MSG_RESULT([$DEFAULT_PACKAGE])
+	AC_SUBST(DEFAULT_PACKAGE)
+
+	DEFAULT_INIT_DIR=$sysconfdir/init.d
+	AC_MSG_CHECKING([default init directory])
+	AC_MSG_RESULT([$DEFAULT_INIT_DIR])
+	AC_SUBST(DEFAULT_INIT_DIR)
+
+	AC_MSG_CHECKING([default init script type])
+	case "$VENDOR" in
+		toss)       DEFAULT_INIT_SCRIPT=redhat ;;
+		redhat)     DEFAULT_INIT_SCRIPT=redhat ;;
+		fedora)     DEFAULT_INIT_SCRIPT=fedora ;;
+		gentoo)     DEFAULT_INIT_SCRIPT=openrc ;;
+		alpine)     DEFAULT_INIT_SCRIPT=openrc ;;
+		arch)       DEFAULT_INIT_SCRIPT=lsb    ;;
+		sles)       DEFAULT_INIT_SCRIPT=lsb    ;;
+		slackware)  DEFAULT_INIT_SCRIPT=lsb    ;;
+		lunar)      DEFAULT_INIT_SCRIPT=lunar  ;;
+		ubuntu)     DEFAULT_INIT_SCRIPT=lsb    ;;
+		debian)     DEFAULT_INIT_SCRIPT=lsb    ;;
+		*)          DEFAULT_INIT_SCRIPT=lsb    ;;
+	esac
+	AC_MSG_RESULT([$DEFAULT_INIT_SCRIPT])
+	AC_SUBST(DEFAULT_INIT_SCRIPT)
+
+	AC_MSG_CHECKING([default init config directory])
+	case "$VENDOR" in
+		alpine)     DEFAULT_INITCONF_DIR=/etc/conf.d    ;;
+		gentoo)     DEFAULT_INITCONF_DIR=/etc/conf.d    ;;
+		toss)       DEFAULT_INITCONF_DIR=/etc/sysconfig ;;
+		redhat)     DEFAULT_INITCONF_DIR=/etc/sysconfig ;;
+		fedora)     DEFAULT_INITCONF_DIR=/etc/sysconfig ;;
+		sles)       DEFAULT_INITCONF_DIR=/etc/sysconfig ;;
+		ubuntu)     DEFAULT_INITCONF_DIR=/etc/default   ;;
+		debian)     DEFAULT_INITCONF_DIR=/etc/default   ;;
+		*)          DEFAULT_INITCONF_DIR=/etc/default   ;;
+	esac
+	AC_MSG_RESULT([$DEFAULT_INITCONF_DIR])
+	AC_SUBST(DEFAULT_INITCONF_DIR)
+
+	AC_MSG_CHECKING([whether initramfs-tools is available])
+	if test -d /usr/share/initramfs-tools ; then
+		DEFINE_INITRAMFS='--define "_initramfs 1"'
 		AC_MSG_RESULT([yes])
-		$3
+	else
+		DEFINE_INITRAMFS=''
+		AC_MSG_RESULT([no])
 	fi
+	AC_SUBST(DEFINE_INITRAMFS)
 ])
 
 dnl #
-dnl # 2.6.x API change
-dnl # bio_end_io_t uses 2 args (size was dropped from prototype)
+dnl # Default ZFS package configuration
 dnl #
-AC_DEFUN([ZFS_AC_2ARGS_BIO_END_IO_T],
-	[AC_MSG_CHECKING([whether bio_end_io_t wants 2 args])
-	tmp_flags="$EXTRA_KCFLAGS"
-	EXTRA_KCFLAGS="-Werror"
-	ZFS_LINUX_TRY_COMPILE([
-	        #include <linux/bio.h>
-	],[
-		void (*wanted_end_io)(struct bio *, int) = NULL;
-		bio_end_io_t *local_end_io;
-
-		local_end_io = wanted_end_io;
-	],[
-	        AC_MSG_RESULT(yes)
-	        AC_DEFINE(HAVE_2ARGS_BIO_END_IO_T, 1,
-	                  [bio_end_io_t wants 2 args])
-	],[
-	        AC_MSG_RESULT(no)
-	])
-	EXTRA_KCFLAGS="$tmp_flags"
+AC_DEFUN([ZFS_AC_PACKAGE], [
+	ZFS_AC_DEFAULT_PACKAGE
+	ZFS_AC_RPM
+	ZFS_AC_DPKG
+	ZFS_AC_ALIEN
 ])