[Qgis-developer] QGIS Python support in a library

[William Kyngesburye]

With everything changed over to @loader_path where appropriate,  
basically all libraries and loadables use @loader_path, and only  
executables (qgis, qgis_help) use @executable_path.  This limits it to  
a minimum of OSX 10.4 Tiger.  I get something like this (simplified):

bin
     qgis_help.app
         Contents
             MacOS
                 qgis_help
                     Qt* -> @x/../../../../lib/Qt*
                     qgis_core -> @x/../../../../lib/qgis_core
lib
     libqgis*
         qgis_core, qgis_gui -> @l/qgis_*
         Qt* -> @l/Qt*
     qgis [plugins]
         all
             qgis_core, qgis_gui -> @l/../qgis_*
             Qt* -> @l/../Qt*
     Qt*.framework
         Qt* -> @l/../../../Qt*
qgis [app]
     qgis_core, qgis_gui -> @x/lib/qgis_*
     Qt* -> @x/lib/Qt*
share
     qgis
         python
             PyQt4
                 Qt*.so
                     Qt*.framework -> @l/../../../../lib/Qt*
             qgis
                 core, gui
                     qgis_core, qgis_gui ->  @l/../../../../lib/qgis_*
                     Qt*.framework -> @l/../../../../lib/Qt*

and similarly for any extra bundled libraries.

On Jun 2, 2008, at 1:37 AM, Tim Sutton wrote:

> Hi
>
> Ok with Toms change, it tries to load python but fails with lib path
> issues. Could you give me otool -L dumps for the three python libs
> once you have them working so I can update my post install scripts? I
> tried a few permutations of @add_library path but Im not sure if I
> should be universally swtiching @executable_path.
>
> Regards
>
> Tim
>
> 2008/6/1 William Kyngesburye <woklist at kyngchaos.com>:
>> OK, finally got a package built properly.  Python support IS  
>> starting.
>> Maybe something changed in SVN since I last tried it Saturday?  Or  
>> maybe my
>> @loader_path change was the key?
>>
>> Qgis SVN r8575
>> OSX 10.5.3, Xcode 3.1 beta
>> System Python 2.5
>> Qt 4.3.5/PyQt 4.3.3/SIP 4.7.4
>>
>> This is with my usual changing things to @loader_path where  
>> appropriate, so
>> the python .so's in Qgis relatively refer to the Qgis libs and  
>> bundled Qt
>> (instead of the default @executable_path, which is unclear what the
>> executable is).
>>

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

"Those people who most want to rule people are, ipso-facto, those  
least suited to do it."

- A rule of the universe, from the HitchHiker's Guide to the Galaxy