OSX: gnuplot doesn't start due to dreaded libpng conflict

[sagetrac-mabshoff]

In http://groups.google.com/group/sage-support/browse_thread/thread/9b61a7cf8fbfac7a Wayne reported:

/WW/Projects/Heart/bash$sage 
---------------------------------------------------------------------- 
| Sage Version 3.2, Release Date: 2008-11-20                         | 
| Type notebook() for the GUI, and license() for information.        | 
---------------------------------------------------------------------- 
sage: gnuplot_console() 
dyld: Symbol not found: __cg_png_create_info_struct 
  Referenced from: /System/Library/Frameworks/ 
ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/ 
Versions/A/ImageIO 
  Expected in: /Users/ww/Applications/Scientific/sage/local/lib// 
libpng12.0.dylib 
sage: 

The fix should be obvious by now, i.e. use sage-native-execute

Cheers,

Michael

Component: build

Issue created by migration from https://trac.sagemath.org/ticket/4657

[sagetrac-mabshoff]

Attachment: trac_4657.patch.gz

[sagetrac-mabshoff]

comment:2

The problem only manifests itself when using a system wide gnuplot, i.e. for example a Fink one. The patch should fix that. The experimental gnuplot-4.0.0.spkg in our repo is currently slightly broken on OSX since it calls Emacs at some point and then blows up due to the same libpng issues. Oh well ...

Cheers,

Michael

[sagetrac-mabshoff]

comment:4

Merged in Sage 3.2.1.rc1