From f8a6735691637aac688821dcdcc4ec6f13a30960 Mon Sep 17 00:00:00 2001
From: Freddie Akeroyd <freddie.akeroyd@stfc.ac.uk>
Date: Sat, 19 Sep 2020 00:53:05 +0100
Subject: [PATCH] Print warning if using GetTickCount()

---
 modules/libcom/src/osi/os/WIN32/osdMonotonic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/libcom/src/osi/os/WIN32/osdMonotonic.c b/modules/libcom/src/osi/os/WIN32/osdMonotonic.c
index e9fce3834..8b72d24fb 100644
--- a/modules/libcom/src/osi/os/WIN32/osdMonotonic.c
+++ b/modules/libcom/src/osi/os/WIN32/osdMonotonic.c
@@ -29,6 +29,9 @@ void osdMonotonicInit(void)
         osdUsePrefCounter = 1;
     } else {
         osdMonotonicResolution = 1e6; /* 1 ms TODO place holder */
+#if _WIN32_WINNT < 0x0600 /* Older than Windows Vista / Server 2008 */
+        errMessage(errlogMinor, "Warning: using GetTickCount() so monotonic time will wrap every 49.7 days\n");
+#endif
     }
 }