Invoke PKG_CHECK_MODULES correctly for gtk+-2.0. Improve automatic client detection. 
Invoke PKG_CHECK_MODULES correctly for gtk+-2.0.
Improve automatic client detection. 


git-svn-id: 9ed0004971709408f906b8bdafa7f98a7bcab630@1050 f854266a-e20d-0410-a9be-8852184c940f

zlargon/iaxclient,zlargon/iaxclient,zlargon/iaxclient,zlargon/iaxclient,zlargon/iaxclient