From 86ddc12a8dd18676146ed6ef085a9a3c4029d169 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Thu, 1 Sep 2016 12:48:06 -0400
Subject: [PATCH] Suppress GCC 6 warning about self-comparison

Back-patch commit a2fd62dd53fb606dee69e0f4eb12289c87f5c8b1
into older branches.  Per complaint from Pavel Stehule.
---
 src/port/path.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/port/path.c b/src/port/path.c
index d0f72df29c..c79814ddac 100644
--- a/src/port/path.c
+++ b/src/port/path.c
@@ -86,7 +86,11 @@ skip_drive(const char *path)
 bool
 has_drive_prefix(const char *path)
 {
+#ifdef WIN32
 	return skip_drive(path) != path;
+#else
+	return false;
+#endif
 }
 
 /*