--- a/lib-src/emacsserver.c	Mon Aug 13 08:54:02 2007 +0200
+++ b/lib-src/emacsserver.c	Mon Aug 13 08:54:25 2007 +0200
@@ -61,13 +61,18 @@
 
 #include <sys/types.h>
 #include <sys/file.h>
-#include <sys/socket.h>
 #include <sys/signal.h>
 #include <sys/stat.h> /* Needed for chmod, at least on Linux */
 #include <sys/un.h>
 #include <stdio.h>
 #include <errno.h>
 #include "../src/sysproc.h" /* Needed for select */
+#ifndef SOCK_STREAM
+/* this is normally included by src/sysproc.h.  might be safe to omit
+ * it entirely.  lousy ultrix's sys/socket.h chokes if it's included
+ * twice, so we can't include unconditionally.  */
+#include <sys/socket.h>
+#endif
 
 void
 main ()