Fix building with g++

Rangi42 · Rangi42 · commit b6942dcd521f · 2019-10-05T21:09:44.000-04:00
diff --git a/src/tilemap-format.cpp b/src/tilemap-format.cpp
@@ -1,3 +1,5 @@
+#include <cstring>
+
 #pragma warning(push, 0)
 #include <FL/filename.H>
 #pragma warning(pop)
