From 737452159d521aef2041a2767f3ebf9f68f4b6a9 Mon Sep 17 00:00:00 2001
From: Christian Kampka <christian@kampka.net>
Date: Tue, 1 Sep 2020 13:54:35 +0200
Subject: [PATCH] Pin abstract namespace sockets to host_os

Running programs with AC_RUN_IFELSE fails when cross-compiling.
Since abstract namespace sockets are linux feature, we can easily
assume it is available for linux and not for darwin.
---
 configure.in | 47 ++++++-----------------------------------------
 1 file changed, 6 insertions(+), 41 deletions(-)

diff --git a/configure.in b/configure.in
index eb129db..0ed82ba 100644
--- a/configure.in
+++ b/configure.in
@@ -387,47 +387,12 @@ fi
 
 #### Abstract sockets
 
-AC_MSG_CHECKING(abstract socket namespace)
-AC_LANG_PUSH(C)
-AC_RUN_IFELSE([AC_LANG_PROGRAM(
-[[
-#include <sys/types.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <errno.h>
-]],
-[[
-  int listen_fd;
-  struct sockaddr_un addr;
-  
-  listen_fd = socket (PF_UNIX, SOCK_STREAM, 0);
-  
-  if (listen_fd < 0)
-    {
-      fprintf (stderr, "socket() failed: %s\n", strerror (errno));
-      exit (1);
-    }
-
-  memset (&addr, '\0', sizeof (addr));
-  addr.sun_family = AF_UNIX;
-  strcpy (addr.sun_path, "X/tmp/dbus-fake-socket-path-used-in-configure-test");
-  addr.sun_path[0] = '\0'; /* this is what makes it abstract */
-  
-  if (bind (listen_fd, (struct sockaddr*) &addr, SUN_LEN (&addr)) < 0)
-    {
-       fprintf (stderr, "Abstract socket namespace bind() failed: %s\n", 
-                strerror (errno));
-       exit (1);
-    }
-  else 
-    exit (0);
-]])],
-              [have_abstract_sockets=yes],
-              [have_abstract_sockets=no])
-AC_LANG_POP(C)
+AC_MSG_CHECKING([whether target os has abstract socket namespace])
+if test x$target_os = xlinux-gnu ; then
+    have_abstract_sockets=yes
+else
+    have_abstract_sockets=no
+fi	
 AC_MSG_RESULT($have_abstract_sockets)
 
 if test x$enable_abstract_sockets = xyes; then
-- 
2.25.4