fix building with locales

[Carmelo AMOROSO]

Bernhard Reutner-Fischer wrote:
> Hi,
> 
> Currently locales are broken when you have:
> 
> $ grep LOCALE .config
> UCLIBC_HAS_LOCALE=y
> UCLIBC_PREGENERATED_LOCALE_DATA=y (or =n)
> UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA=y (or =n)
> UCLIBC_HAS_XLOCALE=y (doesn't matter)
> 
> A couple of headers are not found, most notably uClibc_ctype.h, and
> extra/locale/* falls apart in various funny ways.
> 
> In an attempt to cure this, i'm proposing something like the
> attached patchlet (which is untested).
> 
> So i'm asking anybody who uses locale to try the attached patch and to
> let me know if it builds fine now (with -j1; I'm pretty sure that -j
> will not work yet, we can fix that later).
> 
> TIA,
> Bernhard
> 
Hi Bernhard,
I'll try the path (not immediately anyway, too busy in other stuff),
but I don't have problem in compiling with locale (except for -j2).

I have some changes in my branch in Makefile regarding headers target,
that at this point are doing the difference. I'll check them too.

Carmelo