From 574d2b2beac61655ac76b341ed3935f9bd26de0a Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Wed, 1 May 2024 14:19:27 -0500
Subject: [PATCH] make Ubuntu 16.04 happy

---
 src/engine/fileOps/tfm.cpp | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/src/engine/fileOps/tfm.cpp b/src/engine/fileOps/tfm.cpp
index b4535c762..2a1f20d27 100644
--- a/src/engine/fileOps/tfm.cpp
+++ b/src/engine/fileOps/tfm.cpp
@@ -172,13 +172,14 @@ struct TFMSpeed {
 };
 
 // to make it work with map
-template<>
-struct std::hash<TFMSpeed>
-{
-  size_t operator()(const TFMSpeed& s) const noexcept {
-    return s.speedEven<<16|s.speedOdd<<8|s.interleaveFactor;
-  }
-};
+namespace std {
+  template<> struct hash<TFMSpeed>
+  {
+    size_t operator()(const TFMSpeed& s) const noexcept {
+      return s.speedEven<<16|s.speedOdd<<8|s.interleaveFactor;
+    }
+  };
+}
 
 struct TFMParsePatternInfo {
   TFMRLEReader* reader;