--- abook-0.6.0pre2/configure.ac.orig	2013-03-14 19:05:29.494683245 +0100
+++ abook-0.6.0pre2/configure.ac	2013-03-14 19:11:30.378009058 +0100
@@ -44,10 +44,6 @@
 
 AC_PROG_CC
 AC_SEARCH_LIBS([strerror],[cposix])
-AM_C_PROTOTYPES
-if test "x$U" != "x"; then
-	AC_MSG_ERROR(Compiler not ANSI compliant)
-fi
 AC_C_INLINE
 AC_PROG_INSTALL
 AC_HEADER_STDC