Unbreak after libgnutls-config removal.

ok sthen@ (maintainer)

textproc/iksemel/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.15 2015/05/05 17:00:19 sthen Exp $
+# $OpenBSD: Makefile,v 1.16 2015/09/14 07:02:44 ajacoutot Exp $
 
 COMMENT=		XML parser designed for Jabber applications
 DISTNAME=		iksemel-1.4
@@ -27,4 +27,16 @@ CONFIGURE_STYLE=	gnu
 CONFIGURE_ARGS+=	${CONFIGURE_SHARED} \
 			CPPFLAGS="${CPPFLAGS} -I${LOCALBASE}/include"
 
+AUTOCONF_VERSION=	2.69
+AUTOMAKE_VERSION=	1.15
+BUILD_DEPENDS +=	${MODGNU_AUTOCONF_DEPENDS} \
+			${MODGNU_AUTOMAKE_DEPENDS} \
+			devel/libtool
+
+pre-configure:
+	cd ${WRKSRC} && \
+		AUTOCONF_VERSION=${AUTOCONF_VERSION} \
+		AUTOMAKE_VERSION=${AUTOMAKE_VERSION} \
+		autoreconf -fi
+
 .include <bsd.port.mk>

textproc/iksemel/patches/patch-configure_ac

@@ -0,0 +1,20 @@
+$OpenBSD: patch-configure_ac,v 1.1 2015/09/14 07:02:44 ajacoutot Exp $
+--- configure.ac.orig	Thu Jul 23 13:16:36 2009
++++ configure.ac	Sun Sep 13 09:30:19 2015
+@@ -45,7 +45,15 @@ AC_SEARCH_LIBS(recv,socket)
+ AC_CHECK_FUNCS(getopt_long)
+ AC_CHECK_FUNCS(getaddrinfo)
+ 
+-AM_PATH_LIBGNUTLS(,AC_DEFINE(HAVE_GNUTLS,,"Use libgnutls"))
++dnl Check GNU TLS
++PKG_CHECK_MODULES(GNUTLS, gnutls >= 2.0.0, have_gnutls=yes, have_gnutls=no) 
++if test "x$have_gnutls" = "xyes"; then
++  LIBGNUTLS_CFLAGS="$GNUTLS_CFLAGS"
++  LIBGNUTLS_LIBS="$GNUTLS_LIBS"
++  AC_SUBST(LIBGNUTLS_CFLAGS)
++  AC_SUBST(LIBGNUTLS_LIBS)
++  AC_DEFINE(HAVE_GNUTLS, 1, [whether to use GnuTLS support.]) 
++fi
+ 
+ dnl Check -Wall flag of GCC
+ if test "x$GCC" = "xyes"; then