Re: [Matplotlib-users] core dumped after importing matplotlib on SunOS

[Olive <enc...@ya...>]

On Fri, 15 Apr 2005 00:34:15 -0500, John Hunter
<jdh...@ac...> wrote :

>     Olive> Hello, I've juste downloaded the last version (0.8) of
>     Olive> matplotlib and successfully built it on SunOS 5.8 with GTK
>     Olive> backend (gcc 3.2.2).  "import matplolib" is OK but typing
>     Olive> "from matplotlib.pylab import *" result in a core dumped !
>     Olive> without any error message or exception...  "import gtk",
>     Olive> "import pygtk", and "import wx" works OK.
> 
>     Olive> I've tried with version 0.72, same error :
> 
> I don't have a lot of good advice for you, but here is how I would go
> about debugging the problem.  You can recompile mpl in verbose mode.
> rm -rf "site-packages/matplotlib" and your "build" subdir and edit
> setup.py and set VERBOSE=True and recompile/reinstall.

Ah ! that was what I was looking for !
So I've managed to isolate the culprit :

>>> from font_manager import FontProperties
Glyph::init_type
FT2Font::init_type
ft2font_module::new_ft2font
FT2Font::FT2Font
FT2Font::clear
Illegal Instruction (core dumped)

It appears that the problem was in file ft2font.cpp at line 354 :
const char* ps_name = FT_Get_Postscript_Name( face );

I don't know what is wrong here but I managed to get matplotlib working
by replacing it by :
const char* ps_name = NULL;

I forgot to take the version number of the freetype library before
leaving work, I will get it on monday.

I haven't understand what is really in the argument 'face', can you give
me a code which print the fields of 'face' ? (I don't know C++...)

Thank you anyway for your help !