Remove dependency on gnuplot: it's trivial to fake it for building,

and octave is useful even without gnuplot installed.

Remind user in pkg/DESCR that gnuplot might be useful.

math/octave/Makefile

@@ -1,4 +1,4 @@
-# $OpenBSD: Makefile,v 1.3 2001/09/28 06:02:14 pvalchev Exp $
+# $OpenBSD: Makefile,v 1.4 2001/10/02 12:27:11 espie Exp $
 
 COMMENT=	"High-level language for numerical computations"
 VERSION=	2.0.16
@@ -19,8 +19,7 @@ PERMIT_DISTFILES_FTP=	Yes
 MASTER_SITES=		${MASTER_SITE_GNU}
 MASTER_SITE_SUBDIR=	octave
 
-BUILD_DEPENDS=	gnuplot:gnuplot-*:math/gnuplot
-RUN_DEPENDS=	gnuplot:gnuplot-*:math/gnuplot
+REGRESS_DEPENDS=::devel/dejagnu
 
 USE_GMAKE=	Yes
 

math/octave/patches/patch-configure

@@ -1,6 +1,6 @@
-$OpenBSD: patch-configure,v 1.4 2001/09/29 20:14:20 pvalchev Exp $
---- configure.orig	Sat Jan 29 19:26:06 2000
-+++ configure	Sat Sep 29 13:06:59 2001
+$OpenBSD: patch-configure,v 1.5 2001/10/02 12:27:12 espie Exp $
+--- configure.orig	Sun Jan 30 03:26:06 2000
++++ configure	Tue Oct  2 12:18:11 2001
 @@ -774,9 +774,23 @@ LIBPLPLOT=""
  ### Allow the user disable support for command line editing using GNU
  ### readline.
@@ -84,3 +84,12 @@ $OpenBSD: patch-configure,v 1.4 2001/09/29 20:14:20 pvalchev Exp $
       #ifdef FNM_PERIOD
         yes
       #endif
+@@ -6233,7 +6255,7 @@ test -z "$INSTALL_DATA" && INSTALL_DATA=
+ INSTALL_SCRIPT='${INSTALL}'
+ 
+ 
+-if test "$cross_compiling" = yes; then
++if true; then
+   GNUPLOT_BINARY=gnuplot
+   echo "$ac_t""assuming $GNUPLOT_BINARY exists on $canonical_host_type host" 1>&6
+   

math/octave/pkg/DESCR

@@ -12,4 +12,6 @@ and customizable via user-defined functions written in Octave's own
 language, or using dynamically loaded modules written in C++, C, Fortran,
 or other languages. 
 
+In order to use the plotting commands, you must also install gnuplot.
+
 WWW: ${HOMEPAGE}