gtkmm3 requires recent c++ to build.diff -r1.27 -r1.28 pkgsrc/x11/gtkmm3/Makefile
(youri)
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.27 2018/04/16 14:34:00 wiz Exp $
+# $NetBSD: Makefile,v 1.28 2018/05/14 12:18:21 youri Exp $
DISTNAME= gtkmm-3.22.2
PKGNAME= ${DISTNAME:S/gtkmm/gtkmm3/1}
@@ -13,6 +13,7 @@
LICENSE= gnu-lgpl-v2.1 AND gnu-gpl-v2
USE_LANGUAGES= c c++11
+GCC_REQD+= 4.9
USE_LIBTOOL= yes
USE_TOOLS+= gmake perl pkg-config
GNU_CONFIGURE= yes