diff --git a/configure b/configure
index 8992a71..1f45e03 100755
--- a/configure
+++ b/configure
@@ -12063,12 +12063,12 @@ else
         *-*-linux*)
                 PLUGIN_LDFLAGS="-export-dynamic -avoid-version"
                 DEBUG="-g -Wall -D_REENTRANT -D__NO_MATH_INLINES -fsigned-char"
-                CFLAGS="-O20 -ffast-math -D_REENTRANT -fsigned-char"
-                PROFILE="-pg -g -O20 -ffast-math -D_REENTRANT -fsigned-char";;
+                CFLAGS=" -D_REENTRANT -fsigned-char"
+                PROFILE="-pg -g  -D_REENTRANT -fsigned-char";;
         sparc-sun-*)
                 PLUGIN_LDFLAGS="-export-dynamic -avoid-version"
                 DEBUG="-g -Wall -D__NO_MATH_INLINES -fsigned-char"
-                CFLAGS="-O20 -ffast-math -D__NO_MATH_INLINES -fsigned-char"
+                CFLAGS=" -D__NO_MATH_INLINES -fsigned-char"
                 PROFILE="-pg -g -O20 -D__NO_MATH_INLINES -fsigned-char" ;;
         *-darwin*)
                 PLUGIN_LDFLAGS="-module -avoid-version"