set RUBY=${RUBY} in the environment rather than patching configure.

ok jeremy@

net/rrdtool/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.55 2010/10/28 13:39:35 jeremy Exp $
+# $OpenBSD: Makefile,v 1.56 2010/10/29 12:45:45 sthen Exp $
 
 SHARED_ONLY=	Yes 
 
@@ -52,7 +52,9 @@ CPPFLAGS+=	-I${LOCALBASE}/include/libart-2.0 \
 		-I${X11BASE}/include/ \
 		-I${X11BASE}/include/freetype2
 LDFLAGS+=	-L${LOCALBASE}/lib -L${X11BASE}/lib
-CONFIGURE_ENV+=	CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
+CONFIGURE_ENV+=	CPPFLAGS="${CPPFLAGS}" \
+		LDFLAGS="${LDFLAGS}" \
+		RUBY="${RUBY}"
 
 WANTLIB-main=		c m z freetype
 LIB_DEPENDS-main=	png::graphics/png \

net/rrdtool/patches/patch-configure

@@ -1,12 +0,0 @@
-$OpenBSD: patch-configure,v 1.6 2010/09/23 22:13:26 jeremy Exp $
---- configure.orig	Mon Sep 13 13:03:32 2010
-+++ configure	Mon Sep 13 13:04:46 2010
-@@ -28654,7 +28654,7 @@ fi
- 
- 
- # Extract the first word of "ruby", so it can be a program name with args.
--set dummy ruby; ac_word=$2
-+set dummy ruby18; ac_word=$2
- { echo "$as_me:$LINENO: checking for $ac_word" >&5
- echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
- if test "${ac_cv_path_RUBY+set}" = set; then