opensmtpd: add missing patch

srcpkgs/opensmtpd/patches/cross-no-varrun-check.patch

@@ -0,0 +1,39 @@
+--- configure.ac.orig	2018-01-16 18:25:01.896527503 +0100
++++ configure.ac	2018-01-16 18:25:27.827424062 +0100
+@@ -1310,36 +1310,6 @@ AC_SUBST([sockdir])
+ 
+ # Where to place smtpd.pid
+ piddir=/var/run
+-AC_RUN_IFELSE(
+-	[
+-		AC_LANG_PROGRAM([[
+-#include <stdio.h>
+-#include <stdlib.h>
+-#ifdef HAVE_PATHS_H
+-#include <paths.h>
+-#endif
+-#define DATA "conftest.piddir"
+-		]],
+-		[[
+-#ifdef _PATH_VARRUN
+-FILE *fd;
+-int rc;
+-
+-if ((fd = fopen(DATA,"w")) == NULL) { exit(1); }
+-if ((rc = fprintf(fd ,"%s\n", _PATH_VARRUN)) < 0) { exit(2); }
+-exit(0);
+-#else
+-exit(-1);
+-#endif
+-		]])
+-	],		[
+-		piddir=`cat conftest.piddir`
+-		AC_MSG_RESULT([using $piddir from paths.h])
+-	],
+-	[
+-		AC_MSG_RESULT([using $piddir from default value])
+-	]
+-)
+ 
+ AC_ARG_WITH([path-pidfile],
+ 	[  --with-path-pidfile=PATH	Specify path to smtpd.pid directory (default=/var/run)],

srcpkgs/opensmtpd/template

@@ -1,12 +1,11 @@
 # Template file for 'opensmtpd'
 pkgname=opensmtpd
 version=6.0.3p1
-revision=3
+revision=4
 build_style=gnu-configure
 configure_args="--sysconfdir=/etc/smtpd --sbindir=/usr/bin
  --with-path-socket=/run --with-mantype=doc --with-pie --with-table-db
  --with-path-CAfile=/etc/ssl/certs/ca-certificates.crt
- --with-path-mbox=/var/mail
  --with-maildir=/var/mail
  ac_cv_func_arc4random=yes
  ac_cv_func_arc4random_buf=yes