--- src/synfig/transform.cpp.orig	2022-04-20 19:16:57.130395000 -0700
+++ src/synfig/transform.cpp	2022-04-20 19:17:00.690569000 -0700
@@ -31,6 +31,7 @@
 
 #include "transform.h"
 #include <algorithm>
+#include <cstdlib>
 
 #endif