Docs: add crossref

[exim.git] / src / OS / unsupported / Makefile-SunOS5-hal

diff --git a/src/OS/unsupported/Makefile-SunOS5-hal b/src/OS/unsupported/Makefile-SunOS5-hal
index 05ea893af5adb7ffee0d62e59bde1784889a8e6a..05759f369b400f96790b2c8e47f47f0a1bc048a5 100644 (file)
--- a/src/OS/unsupported/Makefile-SunOS5-hal
+++ b/src/OS/unsupported/Makefile-SunOS5-hal
@@ -1,4 +1,5 @@
 # Exim: OS-specific make file for SunOS5 on a HAL
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 # Note: The HAL runs a standard SunOS5 except that it has a 64 bit C
 # compiler called hcc.  To make things work pass the -KV7 flag to force