--- a/configure.ac
+++ b/configure.ac
@@ -178,14 +178,6 @@
   [enable_debug=$enableval],
   [enable_debug=no])
 
-AS_IF([test "x$enable_debug" = "xyes"], [
-  CFLAGS="-g -O0"
-  CXXFLAGS="-g -O0"
-], [
-  CFLAGS="-O2"
-  CXXFLAGS="-O2"
-])
-
 AC_OUTPUT
 AC_MSG_RESULT([
         $PACKAGE $VERSION