From 1b24c055a75ae231e2634a5aa4faa62113d60d53 Mon Sep 17 00:00:00 2001
From: Douglas Johnson <doug@douglasj.ca>
Date: Sat, 20 Apr 2013 16:47:42 -0600
Subject: [PATCH] If global CFLAGS not set use -O2 as a default for submodules

Issue #168
---
 Makefile.in | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 13e96c37d95..3e733b9f915 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -92,8 +92,16 @@ endif
 rust: $(CFG_RUSTC)
 
 define DEF_SUBMODULE_VARS
+
+#defaults 
 DEPS_$(1) =
-CFLAGS_$(1) = $$(CFLAGS) 
+CFLAGS_$(1) = -O2
+
+#if global cflags set, inherit that
+ifneq ($$(CFLAGS),)
+	CFLAGS_$(1) = $$(CFLAGS) 
+endif
+
 # any "done" dummy files must be named libSOMETHING.dummy. 
 #
 # We can't auto-compute this, because some modules have lib* prefix in