diff -aurN DirectFB-0.9.19.orig/configure.in DirectFB-0.9.19/configure.in
--- DirectFB-0.9.19.orig/configure.in	2003-07-14 17:18:25.000000000 +0200
+++ DirectFB-0.9.19/configure.in	2003-07-21 21:26:22.000000000 +0200
@@ -93,13 +93,6 @@
 AM_CONDITIONAL(FBDEV_CORE, test x$enable_fbdev = xyes)
 
 
-dnl Clear default CFLAGS
-if test x"$CFLAGS" = x"-g -O2"; then
-  CFLAGS=
-fi
-
-CFLAGS="-O3 -ffast-math -pipe $CFLAGS"
-
 AC_ARG_ENABLE(extra-warnings,
   [  --enable-extra-warnings   enable extra warnings [default=no]],,
   enable_extra_warnings=no)