Andreas V. Meier:

package/import/cpan/cpan.conf

@@ -67,11 +67,13 @@ then
 	')
 
 	echo_status "MOD=$cpanmod VER=$cpanver LOC=$cpanloc"
+
+	[ -f $confdir/$xpkg.diff ] && hook_add 3 preconf "patch -p1 < $confdir/$xpkg.diff"
 fi
 
 if [ -z "$cpanmod" ]; then
 	echo_error "Can't resolve cpan module name for $xpkg!"
-	exit 1
+	exit 2
 fi
 
 cpan_getdesc() {
@@ -83,4 +85,3 @@ cpan_getdesc() {
 }
 
 hook_add postinstall 8 "cpan_getdesc $cpanmod"
-