Log Message:
-----------
Remove some long-dead support for libpgtcl with Tk.
Modified Files:
--------------
pgsql/src:
Makefile.global.in (r1.217 -> r1.218)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/Makefile.global.in.diff?r1=1.217&r2=1.218)