--- mutt-1.5.21/configure.ac.wiget	2012-09-06 00:15:08.572730635 +0200
+++ mutt-1.5.21/configure.ac	2012-09-06 00:15:55.529396771 +0200
@@ -27,10 +27,6 @@ AC_MSG_RESULT($mutt_cv_prefix)
 
 AC_PROG_CC
 AC_ISC_POSIX
-AM_C_PROTOTYPES
-if test "x$U" != "x"; then
-  AC_MSG_ERROR(Compiler not ANSI compliant)
-fi
 AC_PROG_CPP
 AC_PROG_MAKE_SET
 AC_PROG_INSTALL