Docs: clarify helo_allow_chars option

[exim.git] / src / OS / os.h-Linux

diff --git a/src/OS/os.h-Linux b/src/OS/os.h-Linux
index e6a8d288ed31e1ca2d8dec5b18f0a5d4110d8ffa..cebda33674bcbc5b0fe029669081ba5b6f1750f9 100644 (file)
--- a/src/OS/os.h-Linux
+++ b/src/OS/os.h-Linux
@@ -1,6 +1,7 @@
 /* Exim: OS-specific C header file for Linux */
 /* Copyright (c) University of Cambridge 1995 - 2020 */
 /* Copyright (c) The Exim Maintainers 2021 */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /* See the file NOTICE for conditions of use and distribution. */
 
 
@@ -101,4 +102,6 @@ then change the 0 to 1 in the next block. */
 # define NS_MAXMSG 65535
 #endif
 
+#define EXIM_HAVE_STRCHRNUL
+
 /* End */