--- ragel-6.7/configure	2011-05-22 12:27:42.000000000 -0700
+++ ragel-6.7-patched/configure	2011-12-01 21:11:47.000000000 -0800
@@ -3933,8 +3933,9 @@
 
 
 # Default flags.
-CXXFLAGS="-g"
-
+if test -z "$CXXFLAGS"; then
+  CXXFLAGS="-g"
+fi
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'