Import ruby-tk 0.2.0

This is a Tk interface module using tcltklib.  It was distributed with
ruby until ruby 2.3.  Starting in ruby 2.4 it is available as a separate
gem.

OK jasper@

x11/ruby-tk/Makefile

@@ -0,0 +1,31 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2017/11/05 17:17:41 jeremy Exp $
+
+COMMENT=		ruby graphical tooklit using Tk
+
+DISTNAME=		tk-0.2.0
+CATEGORIES=		x11
+
+HOMEPAGE=		https://github.com/ruby/tk
+
+MAINTAINER=		Jeremy Evans <jeremy@openbsd.org>
+
+# MIT
+PERMIT_PACKAGE_CDROM=	Yes
+
+MODULES=		lang/ruby
+
+FLAVORS =		ruby24
+
+CONFIGURE_STYLE=	ruby gem ext
+
+MODRUBY_TEST=	rake
+
+CONFIGURE_ARGS =	--with-tcl-include=${LOCALBASE}/include/tcl8.5 \
+			--with-tk-include=${LOCALBASE}/include/tk8.5 \
+			--with-tcllib=tcl85 \
+			--with-tklib=tk85 \
+			--with-X11-dir=${X11BASE}
+WANTLIB =		X11 tcl85 tk85
+LIB_DEPENDS =		tk->=8.5,<8.6:x11/tk/8.5
+
+.include <bsd.port.mk>

x11/ruby-tk/distinfo

@@ -0,0 +1,2 @@
+SHA256 (tk-0.2.0.gem) = DTJK6RXCACC+qUax0LCzUkTxb9LazDXPlke5rB6h/D8=
+SIZE (tk-0.2.0.gem) = 1742848

x11/ruby-tk/pkg/DESCR

@@ -0,0 +1 @@
+Ruby Tk interface module using tcltklib