bugfix for 1.10x and HEAD

[muppet <scott asofyet org>]

In IRC today, squentin pointed out a bug that some of his users were  
seeing when upgrading to perl 5.8.8 with Glib 1.10x.  A very simple  
test case, a perl-derived GObject, was failing to have its properties  
set.

Turns out this is due to me incorrectly using SvLEN()-1 instead of  
SvCUR() to find the length of an SV's string in the private helper  
function _gperl_fetch_wrapper_key() in GObject.xs.  Something about  
perl 5.8.8 causes these scalars to have larger buffers than necessary  
for their strings (probably something like reusing already-allocated  
scalars), and this triggers the bug, where older versions did not.   
The bug manifests as the Glib::Object instance having garbage  
characters in the names of the hash keys corresponding to properties  
(e.g. if you don't use a getter or setter).


I've applied the fix to HEAD and to stable-1-10, but in case there's  
not a timely release of the next 1.10x (or if there is no 1.10x), the  
patch is attached for packagers to apply at their level.

Attachment: fetch_wrapper_key-stable-1-10.patch
Description: Binary data

--
I like drawing and painting.  If you make something really weird,  
that means "abstract".
  -- Some kid on a PBS kid's show.