$NetBSD: patch-configure.ac,v 1.4 2024/01/26 03:15:50 riastradh Exp $

Fix cross-build.

--- configure.ac.orig	2013-09-30 07:48:22.000000000 +0000
+++ configure.ac
@@ -36,6 +36,7 @@ RELEASE=1
 dnl Checks for programs.
 AC_PROG_AWK
 AC_PROG_CC
+AX_PROG_CC_FOR_BUILD
 AC_GNU_SOURCE
 AC_AIX
 AC_ISC_POSIX