it's not guaranteed by POSIX and it doesn't work on OpenVMS.
Bug reported by Bernard Giroud in:
http://mail.gnu.org/archive/html/autoconf-patches/2003-06/msg00013.html
+2003-06-13 Paul Eggert <eggert@twinsun.com>
+
+ * lib/install.sh (dsttmp, rmtmp): Do not use '#' in file names;
+ it's not guaranteed by POSIX and it doesn't work on OpenVMS.
+ Bug reported by Bernard Giroud in:
+ http://mail.gnu.org/archive/html/autoconf-patches/2003-06/msg00013.html
+
2003-06-05 Alexandre Duret-Lutz <adl@gnu.org>
* automake.in (check_gnu_standards): Use no-installman and