RFC: Symbol exports

Right.. I now have a complete KDELIBS / KDEBASE running build with 
gcc+visibility patch and default visibility set to hidden. This means that 
nothing is exported in shared libs by default.

I'm now wondering if this *huge* patch will stand any chance of being applied 
(before doing too much extra work on it) ?!  And no I don't mean for 3.3 :-)

The patch won't have any adverse effects as far as I can think off, since it 
can completely be disabled by defining KDE_EXPORT as empty.


Here's what it takes to make KDE work with hidden default:

* am_edit / unsermake needs a patch to export kdeinitmain generated stubs
* kdelibs/dcop/dcopidl2cpp patch to handle LINK_SCOPE tag (which is already 
present in .kidl files)
* giant patch to place KDE_EXPORT on all classes that need exporting and on 
files which have kdeinit/kdeinitmain, KCModule functions, kss_ screensaver 
functions, ...

Any thoughts?! Questions?


(this will surely make Gentoo users giddy.. more compiler flags to play 
with! :-) )