Enable GTK debugger only if GTK2 libraries are installed.


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12551 6c8e4198-a580-4521-a02f-c9ae86df1db9
Enable GTK debugger only if GTK2 libraries are installed.


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12552 6c8e4198-a580-4521-a02f-c9ae86df1db9