bug#17806: 24.4.50; Branch emacs-24 fails to beuild on Debian

[Eli Zaretskii]

> Date: Thu, 19 Jun 2014 23:17:28 -0700
> From: Paul Eggert <eggert@cs.ucla.edu>
> Cc: 17806-done@debbugs.gnu.org
> 
> I've never had much luck with GCC's link time optimization, to be
> honest -- crashes and glitches like these seem to happen every time
> I use it.

Speaking of which: can you debug programs produced with LTO?  On
Windows, I have trouble, because GDB cannot find the source file
corresponding to the object file, see

  https://sourceware.org/ml/gdb-patches/2014-02/msg00426.html

But that could be Windows-specific.  Does "info source" work for you
in such programs?