X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fsquare.h;h=ed0b289b7e902b394517c58011f92d570c9e2489;hb=0da1d6a84612c8443b3e3c9b3f74890635ce23e2;hp=ff31e8653ecb4407d297a5568f3c446c290b982e;hpb=d3600c39a745179ed6b094b305d0645e83a1ee86;p=stockfish

diff --git a/src/square.h b/src/square.h
index ff31e865..ed0b289b 100644
--- a/src/square.h
+++ b/src/square.h
@@ -25,6 +25,7 @@
 //// Includes
 ////
 
+#include <cstdlib> // for abs()
 #include <string>
 
 #include "color.h"