Build loop

[Florian Weimer]

* Fabiano Sidler:

> I'm trying to build libc on an arcane embedded system and it is stuck in an
> weird kind of loop. After entering the nptl subdir, the following lines
> repeat apparently endless:

I think this happens if a .sym file indirectly depends on the output it
generates.  You can avoid this if you split the .sym file into two and
only include some of the heavier headers (<tls.h> comes to my mind) in
those where this is explicitly necessary.

For more advice, we'd need to know what you actually changed in the
source tree.

Thanks,
Florian