Make-lang.in (ada.install-common): Let $(DESTDIR)$(bindir) be created if necessary.

Make-lang.in (ada.install-common): Let $(DESTDIR)$(bindir) be created if necessary.

* Make-lang.in (ada.install-common): Let $(DESTDIR)$(bindir)
be created if necessary.  Remove erroneous and redundant
gnatchop installation commands.  Test for gnatdll before
attempting to install it.  Use initial tab instead of spaces
in continuation lines.
(ada.uninstall): Uninstall gnat instead of gnatcmd.
Also uninstall gnatfind, gnatxref, gnatlbr, and gnatdll
from all plausible locations.

From-SVN: r62027