Add Debian and Slackware style packaging via alien

The long term fix for Debian and Slackware style packaging is
to add native support for building these packages.  Unfortunately,
that is a large chunk of work I don't have time for right now.
That said it would be nice to have at least basic packages for
these distributions.

As a quick short/medium term solution I've settled on using alien
to convert the RPM packages to DEB or TGZ style packages.  The
build system has been updated with the following build targets
which will first build RPM packages and then convert them as
needed to the target package type:

  make rpm: Create .rpm packages
  make deb: Create .deb packages
  make tgz: Create .tgz packages
  make pkg: Create the right package type for your distribution

The solution comes with lot of caveats and your mileage may vary.
But basically the big limitations are that the resulting packages:

  1) Will not have the correct dependency information.
  2) Will not not include the kernel version in the release.
  3) Will not handle all differences between distributions.

But the resulting packages should be easy to install and remove
from your system and take care of running 'depmod -a' and such.
As I said at the top this is not the right long term solution.
If any of the upstream distribution maintainers want to jump in
and help do this right for their distribution I'd love the help.

4 files changed, 267 insertions, 10 deletions

diff --git a/config/deb.am b/config/deb.am
new file mode 100644
index 000000000..766655dcf
--- /dev/null
+++ b/config/deb.am
@@ -0,0 +1,49 @@
+###############################################################################
+# Copyright (C) 2010 Lawrence Livermore National Security, LLC.
+# Written by Brian Behlendorf <[email protected]>.
+###############################################################################
+# Build targets for DEB packages.
+#
+# Long term native distro specific Debian style packaging should be added.
+# In the short term RPM packages are built and converted to DEB packages
+# using alien.  If someone familiar with Debian style packaging were to
+# update the build system to correctly build Debian style packages I would
+# happily take it.  Until then we will have to make due with alien.
+#
+###############################################################################
+
+deb-local:
+	@(if test "${HAVE_DPKGBUILD}" = "no"; then \
+		echo -e "\n" \
+	"*** Required util ${DPKGBUILD} missing.  Please install the\n" \
+        "*** package for your distribution which provides ${DPKGBUILD},\n" \
+	"*** re-run configure, and try again.\n"; \
+                exit 1; \
+	fi; \
+	if test "${HAVE_ALIEN}" = "no"; then \
+		echo -e "\n" \
+	"*** Required util ${ALIEN} missing.  Please install the\n" \
+        "*** package for your distribution which provides ${ALIEN},\n" \
+	"*** re-run configure, and try again.\n"; \
+                exit 1; \
+	fi)
+
+deb-modules: deb-local rpm-modules
+	name=${PACKAGE}-modules; \
+	version=${SPL_META_VERSION}-${SPL_META_RELEASE}; \
+	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
+	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch}`; \
+	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
+	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
+	fakeroot $(ALIEN) --scripts --to-deb $$pkg1 $$pkg2; \
+	$(RM) $$pkg1 $$pkg2
+
+deb-utils: deb-local rpm-utils
+	name=${PACKAGE}; \
+	version=${SPL_META_VERSION}-${SPL_META_RELEASE}; \
+	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch}`; \
+	pkg1=$${name}-$${version}.$${arch}.rpm; \
+	fakeroot $(ALIEN) --scripts --to-deb $$pkg1; \
+	$(RM) $$pkg1
+
+deb: deb-modules deb-utils
diff --git a/config/rpm.am b/config/rpm.am
index 7fb95a72d..0aae42586 100644
--- a/config/rpm.am
+++ b/config/rpm.am
@@ -3,16 +3,43 @@
 # Copyright (C) 2007 The Regents of the University of California.
 # Written by Brian Behlendorf <[email protected]>.
 ###############################################################################
-# Build targets for RPM.
+# Build targets for RPM packages.
 ###############################################################################
 
+srpm-modules:
+	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" srpm-common
+
+srpm-utils:
+	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" srpm-common
+
+srpm: srpm-modules srpm-utils
+
+rpm-modules: srpm-modules
+	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}-modules" rpm-common
+
+rpm-utils: srpm-utils
+	$(MAKE) $(AM_MAKEFLAGS) pkg="${PACKAGE}" rpm-common
+
+rpm-modules: srpm-modules
+
+rpm: rpm-modules rpm-utils
+
 rpm-local:
+	@(if test "${HAVE_RPMBUILD}" = "no"; then \
+		echo -e "\n" \
+	"*** Required util ${RPMBUILD} missing.  Please install the\n" \
+	"*** package for your distribution which provides ${RPMBUILD},\n" \
+	"*** re-run configure, and try again.\n"; \
+		exit 1; \
+	fi; \
 	mkdir -p $(rpmbuild)/TMP && \
 	mkdir -p $(rpmbuild)/BUILD && \
 	mkdir -p $(rpmbuild)/RPMS && \
 	mkdir -p $(rpmbuild)/SRPMS && \
-	mkdir -p $(rpmbuild)/SPECS && cp $(rpmspec) $(rpmbuild)/SPECS && \
-	mkdir -p $(rpmbuild)/SOURCES && cp $(distdir).tar.gz $(rpmbuild)/SOURCES
+	mkdir -p $(rpmbuild)/SPECS && \
+	cp $(rpmspec) $(rpmbuild)/SPECS && \
+	mkdir -p $(rpmbuild)/SOURCES && \
+	cp $(distdir).tar.gz $(rpmbuild)/SOURCES)
 
 srpm-common: dist
 	rpmpkg=$(pkg)-$(SPL_META_VERSION)-$(SPL_META_RELEASE).src.rpm; \
@@ -22,7 +49,7 @@ srpm-common: dist
 		rpmbuild="$$rpmbuild" \
 		rpmspec="$$rpmspec" \
 		rpm-local || exit 1; \
-	/usr/bin/rpmbuild \
+	$(RPMBUILD) \
 		--define "_tmppath $$rpmbuild/TMP" \
 		--define "_topdir $$rpmbuild" \
 		--define "build_src_rpm 1" \
@@ -39,7 +66,7 @@ rpm-common:
 		rpmbuild="$$rpmbuild" \
 		rpmspec="$$rpmspec" \
 		rpm-local || exit 1; \
-	/usr/bin/rpmbuild \
+	${RPMBUILD} \
 		--define "_tmppath $$rpmbuild/TMP" \
 		--define "_topdir $$rpmbuild" \
 		--define "dist %{nil}" \
diff --git a/config/spl-build.m4 b/config/spl-build.m4
index b908a56d5..a11d8866d 100644
--- a/config/spl-build.m4
+++ b/config/spl-build.m4
@@ -188,12 +188,11 @@ AC_DEFUN([SPL_AC_KERNEL], [
 ])
 
 dnl #
-dnl # Default SPL user configuration
+dnl # Explicitly check for gawk, we require it for the the usermode
+dnl # helper.  For some reason the standard awk command does not
+dnl # behave correctly when invoked from the usermode helper.
 dnl #
-AC_DEFUN([SPL_AC_CONFIG_USER], [
-	dnl # Explicitly check for gawk, we require it for the the usermode
-	dnl # helper.  For some reason the standard awk command does not
-	dnl # behave correctly when invoked from the usermode helper.
+AC_DEFUN([SPL_AC_GAWK], [
 	AS_IF([test "x$AWK" != xgawk], [
                 AC_MSG_ERROR([
 	*** Required util gawk missing.  Please install the required
@@ -201,6 +200,146 @@ AC_DEFUN([SPL_AC_CONFIG_USER], [
 	])
 ])
 
+dnl #
+dnl # Default SPL user configuration
+dnl #
+AC_DEFUN([SPL_AC_CONFIG_USER], [
+	SPL_AC_GAWK
+])
+
+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 #
+AC_DEFUN([SPL_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_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_SUBST(HAVE_RPM)
+	AC_SUBST(RPM)
+	AC_SUBST(RPM_VERSION)
+
+	AC_SUBST(HAVE_RPMBUILD)
+	AC_SUBST(RPMBUILD)
+	AC_SUBST(RPMBUILD_VERSION)
+])
+
+dnl #
+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 #
+AC_DEFUN([SPL_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])
+	])
+
+	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])
+	])
+
+	AC_SUBST(HAVE_DPKG)
+	AC_SUBST(DPKG)
+	AC_SUBST(DPKG_VERSION)
+
+	AC_SUBST(HAVE_DPKGBUILD)
+	AC_SUBST(DPKGBUILD)
+	AC_SUBST(DPKGBUILD_VERSION)
+])
+
+dnl #
+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([SPL_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 ($ALIEN_VERSION)])
+	],[
+		HAVE_ALIEN=no
+		AC_MSG_RESULT([$HAVE_ALIEN])
+	])
+
+	AC_SUBST(HAVE_ALIEN)
+	AC_SUBST(ALIEN)
+	AC_SUBST(ALIEN_VERSION)
+])
+
+dnl #
+dnl # Using the VENDOR tag from config.guess set the default
+dnl # package type for 'make pkg': (rpm | deb | tgz)
+dnl #
+AC_DEFUN([SPL_AC_DEFAULT_PACKAGE], [
+	VENDOR=$(echo $ac_build_alias | cut -f2 -d'-')
+
+	AC_MSG_CHECKING([default package type])
+	case "$VENDOR" in
+		fedora)     DEFAULT_PACKAGE=rpm ;;
+		redhat)     DEFAULT_PACKAGE=rpm ;;
+		sles)       DEFAULT_PACKAGE=rpm ;;
+		ubuntu)     DEFAULT_PACKAGE=deb ;;
+		debian)     DEFAULT_PACKAGE=deb ;;
+		slackware)  DEFAULT_PACKAGE=tgz ;;
+		*)          DEFAULT_PACKAGE=rpm ;;
+	esac
+
+	AC_MSG_RESULT([$DEFAULT_PACKAGE])
+	AC_SUBST(DEFAULT_PACKAGE)
+])
+
+dnl #
+dnl # Default SPL user configuration
+dnl #
+AC_DEFUN([SPL_AC_PACKAGE], [
+	SPL_AC_RPM
+	SPL_AC_DPKG
+	SPL_AC_ALIEN
+	SPL_AC_DEFAULT_PACKAGE
+])
+
 AC_DEFUN([SPL_AC_LICENSE], [
 	AC_MSG_CHECKING([spl license])
 	LICENSE=GPL
diff --git a/config/tgz.am b/config/tgz.am
new file mode 100644
index 000000000..57d2eee3b
--- /dev/null
+++ b/config/tgz.am
@@ -0,0 +1,42 @@
+###############################################################################
+# Copyright (C) 2010 Lawrence Livermore National Security, LLC.
+# Written by Brian Behlendorf <[email protected]>.
+###############################################################################
+# Build targets for TGZ packages.
+#
+# Long term native distro specific Slackware style packaging should be added.
+# In the short term RPM packages are built and converted to TGZ packages
+# using alien.  If someone familiar with Slackware style packaging were to
+# update the build system to correctly build Slackware style packages I would
+# happily take it.  Until then we will have to make due with alien.
+#
+###############################################################################
+
+tgz-local:
+	@(if test "${HAVE_ALIEN}" = "no"; then \
+		echo -e "\n" \
+	"*** Required util ${ALIEN} missing.  Please install the\n" \
+        "*** package for your distribution which provides ${ALIEN},\n" \
+	"*** re-run configure, and try again.\n"; \
+                exit 1; \
+	fi)
+
+tgz-modules: tgz-local rpm-modules
+	name=${PACKAGE}-modules; \
+	version=${SPL_META_VERSION}-${SPL_META_RELEASE}; \
+	release=`echo ${LINUX_VERSION} | $(SED) -e "s/-/_/g"`; \
+	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch}`; \
+	pkg1=$${name}-$${version}_$${release}.$${arch}.rpm; \
+	pkg2=$${name}-devel-$${version}_$${release}.$${arch}.rpm; \
+	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1 $$pkg2; \
+	$(RM) $$pkg1 $$pkg2
+
+tgz-utils: tgz-local rpm-utils
+	name=${PACKAGE}; \
+	version=${SPL_META_VERSION}-${SPL_META_RELEASE}; \
+	arch=`$(RPM) -qp $${name}-$${version}.src.rpm --qf %{arch}`; \
+	pkg1=$${name}-$${version}.$${arch}.rpm; \
+	fakeroot $(ALIEN) --scripts --to-tgz $$pkg1; \
+	$(RM) $$pkg1
+
+tgz: tgz-modules tgz-utils