Automatically select the no-GUI version to build if X11 is not

installed.

PR:		closes ports/4178

net/cvsup/Makefile

@@ -3,7 +3,7 @@
 # Date created:		7 August 1996
 # Whom:			asami
 #
-# $Id: Makefile,v 1.23 1998/03/24 04:20:12 jdp Exp $
+# $Id: Makefile,v 1.24 1998/04/28 22:25:03 jdp Exp $
 #
 
 DISTNAME=	cvsup-15.4
@@ -20,13 +20,22 @@ LIB_DEPENDS=	m3\\.6\\.:${PORTSDIR}/lang/modula-3-lib
 MAN1=		cvsup.1
 MAN8=		cvsupd.8
 
-# To build the client without GUI support:
-#MAKE_ENV=	M3FLAGS=-DNOGUI
+# Support building on systems with or without X11 installed.  The
+# modula-3-lib port only supports X11R6 in the standard location,
+# so we don't bother using the X11BASE macro.  It's not defined yet
+# at this point in the Makefile anyway.
+.if !exists(/usr/X11R6/lib/libX11.a)
+M3FLAGS+=	-DNOGUI
+.endif
+
+# Build options.  Uncomment the desired ones.
+# To build the client without GUI support (automatic if X11R6 is not found):
+#M3FLAGS+=	-DNOGUI
 # To link the programs statically:
-#MAKE_ENV=	M3FLAGS=-DSTATIC
+#M3FLAGS+=	-DSTATIC
 # To link just the Modula-3 libraries statically:
-#MAKE_ENV=	M3FLAGS=-DM3STATIC
-# If you combine these, use double quotes:
-#MAKE_ENV=	M3FLAGS="-DNOGUI -DSTATIC"
+#M3FLAGS+=	-DM3STATIC
+
+MAKE_ENV+=	M3FLAGS="${M3FLAGS}"
 
 .include <bsd.port.mk>