Add in the kernel version compatibility table from http://www.am-utils.org/project-unionfs.html and ensure that genkernel dies if the unionfs module fails to build. Until now, it would fail and the build would continue without it.

git-svn-id: svn+ssh://svn.gentoo.org/var/svnroot/genkernel/trunk@424 67a159dc-881f-0410-a524-ba9dfbe2cb84

gen_compile.sh

@@ -351,7 +351,7 @@ compile_unionfs_modules() {
 			cd "${UNIONFS_DIR}"
 			# Compile unionfs module within the unionfs
 			# environment not within the kernelsrc dir
-			make unionfs.ko
+			make unionfs.ko || gen_die 'failed to compile unionfs'
 		else
 			gen_die 'unionfs is only supported on 2.6 targets'
 		fi
@@ -361,9 +361,9 @@ compile_unionfs_modules() {
 		
 		if [ -f unionfs.ko ]
 		then 
-			cp unionfs.ko ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
+			cp -f unionfs.ko ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
 		else
-			cp unionfs.o ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
+			cp -f unionfs.o ${TEMP}/unionfs/lib/modules/${KV}/kernel/fs/unionfs
  		fi
 	
 		cd ${TEMP}/unionfs

genkernel.conf

@@ -125,6 +125,13 @@ DMRAID_DIR="dmraid/${DMRAID_VER}"
 DMRAID_SRCTAR="${GK_SHARE}/pkg/dmraid-${DMRAID_VER}.tar.bz2"
 DMRAID_BINCACHE="%%CACHE%%/dmraid-${DMRAID_VER}-%%ARCH%%.tar.bz2"
 
+# Kernel Version Compatibility
+# (from http://www.am-utils.org/project-unionfs.html)
+
+# 2.6.9 - 2.6.15	1.1.5
+# 2.6.16			1.2
+# 2.6.17			1.3
+
 UNIONFS_VER="VERSION_UNIONFS"
 UNIONFS_DIR="unionfs-${UNIONFS_VER}"
 UNIONFS_SRCTAR="${GK_SHARE}/pkg/unionfs-${UNIONFS_VER}.tar.gz"