Bug#701308: libpam-unix2: ftbfs with GCC-4.8

[Petter Reinholdtsen <pere@hungry.com>]

Control: tags -1 - pending patch

[Petter Reinholdtsen]
> This patch might fix it.  Uploading to test the theory and try to keep
> the package in testing.

Actually, while trying to upload I discovered that the real problem is
that the __libc_lock_define_initialized() macro is no longer provided
by <bits/libc-lock.h> in libc6-dev.  I am not sure how to fix that.

I suspect the entire lock handling need to be rewritten.

-- 
Happy hacking
Petter Reinholdtsen