X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/ad1a76fefdc79201fe2efaf0ef356acbb7938d46..e94c0fe42ba93c2643d44046f2f3a269bae41290:/src/OS/unsupported/os.h-cygwin

diff --git a/src/OS/unsupported/os.h-cygwin b/src/OS/unsupported/os.h-cygwin
index 6ef59e0cc..7f81c074f 100644
--- a/src/OS/unsupported/os.h-cygwin
+++ b/src/OS/unsupported/os.h-cygwin
@@ -1,4 +1,5 @@
 /* Exim: OS-specific C header file for Cygwin */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 
 /* This code was supplied by Pierre A. Humblet <Pierre.Humblet@ieee.org>
    December 2002. Updated Jan 2015. */