From 5666835ea7e0bb3a3b7931d71484d6f7980c0404 Mon Sep 17 00:00:00 2001
From: "W. Felix Handte" <w@felixhandte.com>
Date: Wed, 4 Dec 2019 16:59:16 -0500
Subject: [PATCH] Add Comment

---
 programs/util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/programs/util.c b/programs/util.c
index 0751bf3ca..51d848018 100644
--- a/programs/util.c
+++ b/programs/util.c
@@ -145,6 +145,10 @@ int UTIL_setFileStat(const char *filename, stat_t *statbuf)
         return -1;
 
     /* set access and modification times */
+    /* We check that st_mtime is a macro here in order to give us confidence
+     * that struct stat has a struct timespec st_mtim member. We need this
+     * check because there are some platforms that claim to be POSIX 2008
+     * compliant but which do not have st_mtim... */
 #if (PLATFORM_POSIX_VERSION >= 200809L) && defined(st_mtime)
     {
         /* (atime, mtime) */