--- gambc-v4_6_5-devel/configure.reduce-opt	2012-03-15 00:32:35.000000000 +0700
+++ gambc-v4_6_5-devel/configure	2012-03-31 10:12:56.217457151 +0700
@@ -22294,11 +22294,7 @@
 { echo "$as_me:$LINENO: result: $DASH_fomit_frame_pointer" >&5
 echo "${ECHO_T}$DASH_fomit_frame_pointer" >&6; }
 
-  if test "$DASH_O2" != ""; then
-    OPT_LEVEL_FLAG="$DASH_O2"
-  else
-    OPT_LEVEL_FLAG="$DASH_O1"
-  fi
+  OPT_LEVEL_FLAG="$DASH_O1"
 
 # It isn't clear these are useful:
 #  AC_CHECK_C_COMPILER_OPT(-fexpensive-optimizations,DASH_fexpensive_optimizations)