INN commit: trunk/m4 (socket-unix.m4)

[INN Commit]

    Date: Wednesday, June 9, 2021 @ 06:55:03
  Author: iulius
Revision: 10557

Fix probe for SUN_LEN on macOS X Big Sur

Updated from rra-c-util.

Modified:
  trunk/m4/socket-unix.m4

----------------+
 socket-unix.m4 |    2 ++
 1 file changed, 2 insertions(+)

Modified: socket-unix.m4
===================================================================
--- socket-unix.m4	2021-06-09 13:53:45 UTC (rev 10556)
+++ socket-unix.m4	2021-06-09 13:55:03 UTC (rev 10557)
@@ -12,6 +12,7 @@
 dnl The canonical version of this file is maintained in the rra-c-util
 dnl package, available at <https://www.eyrie.org/~eagle/software/rra-c-util/>.
 dnl
+dnl Copyright 2021 Russ Allbery <eagle at eyrie.org>
 dnl Copyright 2009
 dnl     The Board of Trustees of the Leland Stanford Junior University
 dnl Copyright 2004-2009 Internet Systems Consortium, Inc. ("ISC")
@@ -36,6 +37,7 @@
 
 dnl Source used by INN_MACRO_SUN_LEN.
 AC_DEFUN([_INN_MACRO_SUN_LEN_SOURCE], [[
+#include <string.h>
 #include <sys/types.h>
 #include <sys/un.h>