Index: thunderbird-17.0.9.ebuild
===================================================================
RCS file: /var/cvsroot/gentoo-x86/mail-client/thunderbird/thunderbird-17.0.9.ebuild,v
retrieving revision 1.2
diff -u -B -r1.2 thunderbird-17.0.9.ebuild
--- thunderbird-17.0.9.ebuild	20 Sep 2013 04:31:56 -0000	1.2
+++ thunderbird-17.0.9.ebuild	20 Sep 2013 19:41:02 -0000
@@ -163,6 +163,10 @@
 		edos2unix "${file}"
 	done
 
+	# de-parallelize XPIDL building for bug 465728
+	sed 's@^PARALLEL_DIRS@DIRS@' -i \
+		"${S}"/mozilla/dom/{,activities/,apps/,messages/,mms/,network/,sms/}Makefile.in ||die
+
 	# Allow user to apply any additional patches without modifing ebuild
 	epatch_user