gperf: bump version.

dev-util/gperf/gperf-3.1.recipe

@@ -12,10 +12,10 @@ Online Manual is available at www.gnu.org/software/gperf/manual/gperf.html"
 HOMEPAGE="http://www.gnu.org/software/gperf/"
 COPYRIGHT="1989-1998, 2000-2004, 2006-2009 Free Software Foundation, Inc."
 LICENSE="GNU GPL v3"
-REVISION="2"
-SOURCE_URI="http://ftp.gnu.org/pub/gnu/gperf/gperf-3.0.4.tar.gz"
-CHECKSUM_SHA256="767112a204407e62dbc3106647cf839ed544f3cf5d0f0523aaa2508623aad63e"
-PATCHES="gperf-3.0.4.patch"
+REVISION="1"
+SOURCE_URI="http://ftp.gnu.org/pub/gnu/gperf/gperf-$portVersion.tar.gz"
+CHECKSUM_SHA256="588546b945bba4b70b6a3a616e80b4ab466e3f33024a352fc2198112cdbb3ae2"
+PATCHES="gperf-$portVersion.patch"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 
@@ -31,10 +31,11 @@ BUILD_REQUIRES="
 	haiku_devel
 	"
 BUILD_PREREQUIRES="
-	haiku_devel
+	cmd:awk
 	cmd:gcc
 	cmd:ld
 	cmd:make
+	cmd:sed
 	"
 
 BUILD()