(C_OPTIMIZE_SWITCH) [__GNUC__]: Use -O2.

diff --git a/configure.in b/configure.in
index d88c27fb4157dc02122ea60b24bc411fcb543abd..475b985d5831f661310ed549a509f14b2b1a6091 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1373,8 +1373,12 @@ configure___ system_malloc=no
 #endif
 
 #ifndef C_OPTIMIZE_SWITCH
+#ifdef __GNUC__
+#define C_OPTIMIZE_SWITCH -O2
+#else
 #define C_OPTIMIZE_SWITCH -O
 #endif
+#endif
 
 #ifndef LD_SWITCH_MACHINE
 #define LD_SWITCH_MACHINE