gcc6809: re-add part of patchset that wnet lost in previous update

and further cleanup.

dev-embedded/gcc6809/gcc6809-4.6.4.recipe

@@ -4,13 +4,13 @@ uses the lwtools as a backend. Note that there is no C library provided."
 HOMEPAGE="http://lwtools.projects.l-w.ca"
 SOURCE_URI="ftp://ftp.irisa.fr/pub/mirrors/gcc.gnu.org/gcc/releases/gcc-$portVersion/gcc-$portVersion.tar.bz2"
 CHECKSUM_SHA256="35af16afa0b67af9b8eb15cafb76d2bc5f568540552522f5dc2c88dd45d977e8"
-REVISION="3"
+REVISION="4"
 COPYRIGHT="1988-2013 Free Software Foundation, Inc."
 LICENSE="
 	GNU GPL v2
 	GNU LGPL v2
 	"
-PATCHES="gcc6809lw-$portVersion-9.patchset"
+PATCHES="gcc6809-$portVersion.patchset"
 
 ARCHITECTURES="!x86_gcc2"
 SECONDARY_ARCHITECTURES="x86"
@@ -44,6 +44,7 @@ BUILD_PREREQUIRES="
 	cmd:find
 	cmd:flex
 	cmd:gcc$secondaryArchSuffix
+	cmd:gperf
 	cmd:ld$secondaryArchSuffix
 	cmd:make
 	cmd:makeinfo