re: detect valid fd

[matthew green <mrg%eterna.com.au@localhost>]

christos has commited several fixes to -current that should fix at
least the xsm and font open files you're seeing.  it would be great
if you could update (or apply the libc, xsm and libXfont to whatever
tree you're using) and test the freedesktop tests mentioned in their
bug 83899 again.

http://mail-index.netbsd.org/source-changes/2014/09/18/msg058716.html
http://mail-index.netbsd.org/source-changes/2014/09/18/msg058724.html
http://mail-index.netbsd.org/source-changes/2014/09/18/msg058725.html

thanks.


.mrg.