Index: x11-toolkits/mygui/Makefile
===================================================================
--- x11-toolkits/mygui/Makefile	(revision 444031)
+++ x11-toolkits/mygui/Makefile	(working copy)
@@ -38,7 +38,7 @@ CMAKE_ARGS=	-DMYGUI_BUILD_DEMOS=FALSE \
 USE_LDCONFIG=	yes
 
 USE_CXXSTD=	c++11
-CXXFLAGS+=	-fPIC
+CXXFLAGS+=	-fPIC -DMYGUI_DONT_REPLACE_NULLPTR
 
 PLIST=		${.CURDIR}/pkg-plist