relocatable svn path=/trunk/gtk-sharp/; revision=52437
* configure.in.in : expand glib-sharp-2.0.pc. * glib/glib-sharp-2.0.pc.in : new pc file template. * glib/Makefile.am : dist and install pc file. * gtk/gtk-sharp-2.0.pc.in : Require glib-sharp-2.0. svn path=/trunk/gtk-sharp/; revision=50641