From 05b238c879cafcc559978ac922b43d685270ce29 Mon Sep 17 00:00:00 2001
From: lethosor <lethosor@gmail.com>
Date: Mon, 7 Aug 2017 09:29:46 -0400
Subject: [PATCH] Fix another diggingInvaders compiler error

Windows-specific, for some strange reason

Ref #1145
---
 plugins/diggingInvaders/diggingInvaders.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/diggingInvaders/diggingInvaders.cpp b/plugins/diggingInvaders/diggingInvaders.cpp
index 8be58fd32..4892c5e1d 100644
--- a/plugins/diggingInvaders/diggingInvaders.cpp
+++ b/plugins/diggingInvaders/diggingInvaders.cpp
@@ -199,7 +199,7 @@ public:
 
     }
 
-    int32_t operator()(df::coord p1, df::coord p2) {
+    int32_t operator()(df::coord p1, df::coord p2) const {
         if ( p1 == p2 ) return 0;
         auto i1 = pointCost->find(p1);
         auto i2 = pointCost->find(p2);