Add more support for GLOBAL_CONLYFLAGS.

This will be necessary to support -std=gnu99 mode for clang 3.6, which
defaults to C11 mode (unlike prior releases that use C99).

Change-Id: Iea84582f9f12ba76b988463cbc0a20bd61042538
diff --git a/core/clang/TARGET_mips64.mk b/core/clang/TARGET_mips64.mk
index ab69aed..742be4b 100644
--- a/core/clang/TARGET_mips64.mk
+++ b/core/clang/TARGET_mips64.mk
@@ -18,6 +18,11 @@
   $(CLANG_CONFIG_mips64_EXTRA_CFLAGS) \
   $(CLANG_CONFIG_mips64_TARGET_EXTRA_ASFLAGS)
 
+CLANG_CONFIG_mips64_TARGET_EXTRA_CONLYFLAGS := \
+  $(CLANG_CONFIG_EXTRA_CONLYFLAGS) \
+  $(CLANG_CONFIG_TARGET_EXTRA_CONLYFLAGS) \
+  $(CLANG_CONFIG_mips64_EXTRA_CONLYFLAGS)
+
 CLANG_CONFIG_mips64_TARGET_EXTRA_CPPFLAGS := \
   $(CLANG_CONFIG_EXTRA_CPPFLAGS) \
   $(CLANG_CONFIG_TARGET_EXTRA_CPPFLAGS) \
@@ -42,6 +47,10 @@
   $(call convert-to-clang-flags,$(TARGET_GLOBAL_CFLAGS)) \
   $(CLANG_CONFIG_mips64_TARGET_EXTRA_CFLAGS)
 
+CLANG_TARGET_GLOBAL_CONLYFLAGS := \
+  $(call convert-to-clang-flags,$(TARGET_GLOBAL_CONLYFLAGS)) \
+  $(CLANG_CONFIG_mips64_TARGET_EXTRA_CONLYFLAGS)
+
 CLANG_TARGET_GLOBAL_CPPFLAGS := \
   $(call convert-to-clang-flags,$(TARGET_GLOBAL_CPPFLAGS)) \
   $(CLANG_CONFIG_mips64_TARGET_EXTRA_CPPFLAGS)