$OpenBSD: patch-configure_ac,v 1.3 2021/09/11 09:19:19 ajacoutot Exp $

First chunk, revert (our ghoscript version is too old):
From 75e154f89565af475ef4c9c9a01a805eadb9405e Mon Sep 17 00:00:00 2001
From: Christian Persch <chpe@src.gnome.org>
Date: Sat, 20 Oct 2018 00:17:47 +0200
Subject: spectre-gs: Enforce minimum ghostscript version

Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -63,7 +63,7 @@ AC_CHECK_FUNC(vasprintf, [ AC_DEFINE(HAVE_VASPRINTF, 1
 
 AC_CHECK_FUNC(_vscprintf, [ AC_DEFINE(HAVE__VSCPRINTF, 1, [Define if the '_vscprintf' function is available.]) ])
 
-LIBGS_REQUIRED="9.24"
+LIBGS_REQUIRED="8.62"
 
 AC_CHECK_LIB(gs, gsapi_new_instance, have_libgs=yes, have_libgs=no)
 if test "x$have_libgs" = "xyes"; then
@@ -267,8 +267,7 @@ AC_CACHE_CHECK([whether va_lists can be copied by valu
 [[
 	#include <stdarg.h>
 	#include <stdlib.h>
-]],
-[[
+
 	void f (int i, ...) {
 	va_list args1, args2;
 	va_start (args1, i);
@@ -277,10 +276,9 @@ AC_CACHE_CHECK([whether va_lists can be copied by valu
 	  exit (1);
 	va_end (args1); va_end (args2);
 	}
-	int main() {
-	  f (0, 42);
-	  return 0;
-	}
+]],
+[[
+	f (0, 42);
 ]])],
 	[spectre_cv_va_val_copy=yes],
 	[spectre_cv_va_val_copy=no],
