Bug 402705

Summary:	>=sci-mathematics/octave-3.4.3-r1 should depend on sci-visualization/gnuplot
Product:	Gentoo Linux	Reporter:	Tolga Dalman <tdalman>
Component:	Current packages	Assignee:	Gentoo Science Mathematics related packages <sci-mathematics>
Status:	RESOLVED FIXED
Severity:	normal
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Tolga Dalman 2012-02-08 14:21:05 UTC

Some octave commands depend on gnuplot, resulting in the following error:

octave:1> patch(1,2)
error: popen2: popen2 (child): unable to start process -- No such file or directory
error: called from:
error:   /usr/share/octave/3.6.0/m/plot/private/__gnuplot_open_stream__.m at line 30, column 44
error:   /usr/share/octave/3.6.0/m/plot/__gnuplot_drawnow__.m at line 72, column 19
sh: gnuplot: command not found
error: `unset' undefined near line 2 column 1
warning: broken pipe -- some output may be lost


Reproducible: Always

Comment 1 Jeroen Roovers (RETIRED) gentoo-dev

2012-02-08 14:30:27 UTC

Please post your `emerge --info sci-mathematics/octave' output in a comment.

I'm asking because version 3.2.4-r1 does have the proper RDEPEND.

Comment 2 Tolga Dalman 2012-02-08 14:39:47 UTC

This bug affects octave version 3.4 and higher (see ebuild ChangeLog). The dependency has been removed explicitly, which in turn leads to the problems I have.

While I'd like to see get rid of useless dependencies, leaving out gnuplot from RDEPEND just breaks octave (i.e., many octave programs are not usable anymore).

Comment 3 Sébastien Fabbro (RETIRED) gentoo-dev

2012-02-27 18:31:26 UTC

it does not break octave per se, if you remove gnuplot, octave is still functional.
gnuplot is an optional dependency. i've re-added a gnuplot use flag for 3.6.1.