Improve checks on public entry points, including, among other things

Improve checks on public entry points, including, among other things

Fri Oct  4 17:13:03 2002  Owen Taylor  <otaylor@redhat.com>

        * gtk/gtkdnd.c: Improve checks on public entry points,
        including, among other things checking whether drag
        contexts passed in are source or dest. (Fixes
        #76762, Alexey A. Malyshev)

        * tests/testtext.c tests/testgtk.c tests/testdnd.c:
        Fix uninstalled operation for new pixbuf changes.

        * gtk/stock-icons/Makefile.am (pixbuf_csource):
        Fix makefile for uninstalled operation.