mesa: Add softpipe add-on package

* mesa_swpipe package depends on mesa

sys-libs/mesa/mesa-9.3.recipe

@@ -64,12 +64,16 @@ INSTALL()
 	mkdir -p $libDir
 	cp $(find $mesaBuildDir -name 'libGL.so') $libDir
 
+	# Our rendering add-ons
+	mkdir -p $addOnsDir/opengl
+	cp $(find $mesaBuildDir -name 'libswpipe.so') $addOnsDir/opengl/Softpipe
+
 	# devel package
 	packageEntries devel \
 		$developDir
 	# swpipe renderer package
-	#packageEntries swpipe \
-	#	$addOnsDir
+	packageEntries swpipe \
+		$addOnsDir
 }
 
 # ----- devel package -------------------------------------------------------
@@ -81,3 +85,13 @@ PROVIDES_devel="
 REQUIRES_devel="
 	mesa$secondaryArchSuffix == $portVersion base
 	"
+
+# ----- swpipe package -------------------------------------------------------
+
+PROVIDES_swpipe="
+	mesa${secondaryArchSuffix}_swpipe = $portVersion
+	"
+
+REQUIRED_swpipe="
+	mesa$secondaryArchSuffix == $portVersion base
+	"