--- webkit-gtk-2.4.8-r200.ebuild	2015-04-07 13:33:17.467639076 +0200
+++ webkit-gtk-2.4.8-r201.ebuild	2015-04-07 13:35:41.776644216 +0200
@@ -258,7 +258,9 @@
 src_compile() {
 	# Try to avoid issues like bug #463960
 	unset DISPLAY
-	gnome2_src_compile
+
+	# Avoid JSInternalSettingsGenerated.h: No such file or directory bug #515968
+	MAKEOPTS="${MAKEOPTS} -j1" gnome2_src_compile
 }
 
 src_test() {