License issue of bundle

[Yen-Ju Chen]

As far as I understand,
if an application loads a GPL-licensed bundle,
this application has to be GPL

Then here is a theoretical question:
1. if a GPL-licensed bundle is automatically loaded through GSAppKitUserBundles,
   do all applications need to be GPL ?
  I guess probably not.
2. If a GPL-licensed bundle provide a category for NSApplication,
   say [NSApplication -loadGPLBundle].
   then the GPL-license bundle is loaded through GSAppKitUnserBundles
   and an application use this method (-loadGPLBundle),
   does this application need to be GPL-license ?
   The issue is that the application do not need this bundle to
compile and execute.
   It only use it when it is available.

I am just curious about how the GPL propagates through bundle
through automatical loading.

Thanx.

Yen-Ju