--- makefiles/configure.in.orig	2012-05-23 11:52:20.653259562 +0200
+++ makefiles/configure.in	2012-05-23 11:52:25.517142443 +0200
@@ -15,10 +15,6 @@ AC_SUBST(VERSION)
 dnl Checks for programs.
 AC_PROG_CC
 AC_ISC_POSIX
-AM_C_PROTOTYPES
-if test "x$U" != "x"; then
-  AC_MSG_ERROR(Compiler not ANSI compliant)
-fi
 AM_PROG_LIBTOOL
 AC_PROG_INSTALL