use ?= when setting CXXFLAGS to avoid clobbering user setting

2010-10-30 17:12:01 +02:00
parent e4b1b5c9d8
commit 5d29e7dcda
1 changed files with 1 additions and 1 deletions
@@ -33,5 +33,5 @@ LOCALCXXFLAGS = -g -O2 -Wall -Wno-unused \
 	      $(PICFLAGS) \
 	      @DEFS@
-CXXFLAGS = @CXXFLAGS@
+CXXFLAGS ?= @CXXFLAGS@