diff -ru readline-6.0/configure.in readline-6.0+iPhone/configure.in
--- readline-6.0/configure.in	2009-01-23 15:53:47.000000000 +0000
+++ readline-6.0+iPhone/configure.in	2009-04-10 17:13:20.000000000 +0000
@@ -101,17 +101,11 @@
 echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
 echo ""
 
-# We want these before the checks, so the checks can modify their values.
-test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
-
 AC_PROG_MAKE_SET
 AC_PROG_CC
 dnl AC_AIX
 AC_MINIX
 
-# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
-test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
-
 AC_PROG_GCC_TRADITIONAL
 AC_PROG_INSTALL
 AC_CHECK_PROG(AR, ar, , ar)