$NetBSD: patch-src_configure.ac,v 1.1 2015/04/04 07:59:34 snj Exp $

Check for dlopen using autoconf rather than hardcoding it in src/Makefile.in.

--- configure.ac.orig	2015-04-03 21:50:04.000000000 -0700
+++ configure.ac	2015-04-03 21:50:42.000000000 -0700
@@ -73,5 +73,8 @@ AC_FUNC_FORK
 AC_PROG_GCC_TRADITIONAL
 AC_FUNC_SELECT_ARGTYPES
 AC_CHECK_FUNCS([atexit memset poll socket strerror])
+AC_SEARCH_LIBS([dlopen], [dl dld], [], [
+  AC_MSG_ERROR([unable to find the dlopen() function])
+])
 
 AC_OUTPUT