Suppress GCC 6 warning about self-comparison

Back-patch commit a2fd62dd53fb606dee69e0f4eb12289c87f5c8b1
into older branches.  Per complaint from Pavel Stehule.

diff --git a/src/port/path.c b/src/port/path.c
index a0da7c5cf2e3406f74fd271957581987aae3eb21..1e86e5146d48e681f8cdb9b0155dea25b7ab1992 100644 (file)
--- a/src/port/path.c
+++ b/src/port/path.c
@@ -82,7 +82,11 @@ skip_drive(const char *path)
 bool
 has_drive_prefix(const char *path)
 {
+#ifdef WIN32
        return skip_drive(path) != path;
+#else
+       return false;
+#endif
 }
 
 /*