From 9662934bd9ab7ec8ebdecbf970a384c34617deac Mon Sep 17 00:00:00 2001
From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Wed, 28 Jul 2010 14:30:17 -0700
Subject: [PATCH] Add uninstall Makefile targets

Extend the Makefiles with an uninstall target to cleanly
remove a package which was installed with 'make install'.

Additionally, ensure a 'depmod -a' is run as part of the
install to update the module dependency information.
---
 Makefile.am        |  2 +-
 module/Makefile.in | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 6984d5bd0b..3689d1f8f9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -34,7 +34,7 @@ distclean-local::
 if CONFIG_KERNEL
 install-data-local:
 	destname=zfs-$(ZFS_META_VERSION)/$(LINUX_VERSION); \
-	instdest=$(DESTDIR)/${prefix}/src/$$destname; \
+	instdest=$(DESTDIR)/usr/src/$$destname; \
 	echo "${ZFS_META_VERSION}" >$$instdest/zfs.release; \
 	for instfile in $(noinst_HEADERS) module/$(LINUX_SYMBOLS); do \
 		$(INSTALL) -D $$instfile $$instdest/$$instfile; \
diff --git a/module/Makefile.in b/module/Makefile.in
index cc8047a9ed..489119ab3f 100644
--- a/module/Makefile.in
+++ b/module/Makefile.in
@@ -16,16 +16,29 @@ clean:
 	if [ -f Module.markers ]; then $(RM) Module.markers; fi
 
 modules_install:
+	# Install the kernel modules
 	$(MAKE) -C @LINUX_OBJ@ SUBDIRS=`pwd` \
 		INSTALL_MOD_PATH=$(DESTDIR) \
 		INSTALL_MOD_DIR=addon/zfs $@
 	find ${DESTDIR}/lib/modules/ -name 'modules.*' | xargs ${RM}
+	sysmap=${DESTDIR}/boot/System.map-@LINUX_VERSION@; \
+	if [ -f $$sysmap ]; then \
+		depmod -ae -F $$sysmap @LINUX_VERSION@; \
+	fi
 	# Install the required headers in to the kernel source
 	destname=zfs-@ZFS_META_VERSION@/@LINUX_VERSION@; \
-	instdest=$(DESTDIR)/@prefix@/src/$$destname; \
+	instdest=$(DESTDIR)/usr/src/$$destname; \
 	(find . -mindepth 3 -name '*.h' | xargs -Ihdr sh -c \
 	 "DEST=hdr && install -D hdr $$instdest/\$${DEST#*/*/*/}") || exit 1
 
+modules_uninstall:
+	# Uninstall the kernel modules
+	$(RM) -R ${DESTDIR}/lib/modules/@LINUX_VERSION@/addon/zfs
+	# Uninstall the required headers from the kernel source
+	destname=zfs-@ZFS_META_VERSION@/@LINUX_VERSION@; \
+	instdest=$(DESTDIR)/usr/src/$$destname; \
+	$(RM) -R $$instdest
+
 distdir:
 	distfiles=`find . -name '*.c' -o -name '*.h'`; \
 	for distfile in $$distfiles; do \
@@ -36,5 +49,6 @@ distdir:
 
 distclean maintainer-clean: clean
 install: modules_install
+uninstall: modules_uninstall
 all: modules
 check: