Hi,

Recently, GDB lost a bunch of global variables.

This patch allows me to build insight on x86_64-unknown-linux-gnu.

I have no idea how well it works, because insight seems to be broken here
in several ways ("run" or "attach" from the menu does nothing,
"console" either).  I'm no insight user, so I can't tell what's
going on.

Just thought I'd fix what I broke.  Hope this helps.

-- 
Pedro Alves