--- src/backend/common/t1lib_T1FontManager.cc.orig	2019-02-23 05:24:00 UTC
+++ src/backend/common/t1lib_T1FontManager.cc
@@ -17,6 +17,7 @@
 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <config.h>
+#include <cstdlib>
 
 #include <t1lib.h>