diff -r 000000000000 -r 6474c204b198 security/nss/lib/dev/Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security/nss/lib/dev/Makefile	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include manifest.mn
+include $(CORE_DEPTH)/coreconf/config.mk
+include config.mk
+include $(CORE_DEPTH)/coreconf/rules.mk
+
+# On AIX 4.3, IBM xlC_r compiler (version 3.6.6) cannot compile
+# ckhelper.c in 64-bit mode for unknown reasons.  A workaround is
+# to compile it with optimizations turned on.  (Bugzilla bug #63815)
+ifeq ($(OS_TARGET)$(OS_RELEASE),AIX4.3)
+ifeq ($(USE_64),1)
+ifndef BUILD_OPT
+$(OBJDIR)/ckhelper.o: ckhelper.c
+	@$(MAKE_OBJDIR)
+	$(CC) -o $@ -c -O2 $(CFLAGS) $<
+endif
+endif
+endif
+
+export:: private_export