uclibc with locale

how to build locale with uclibc-0.9.28

README:
1) In the toplevel dir, 'make headers'.

2) Create a codesets.txt file in this dir listing the codesets you want
to support. The easiest way to do this is to edit the output of
'find ./charmaps -name "*.pairs" > codesets.txt'.
NOTE: UTF-8 support is always included if you build with wide chars enabled.
NOTE: The files in charmaps/ were created from glibc's charmap files
with the awk script at the end of this file. You can add others
but only single byte codesets are supported.

3) Create a locales.txt file to select the locales you want to support.
You can copy and edit the LOCALES file for example. Other locales could
added provided you've included the appropriate codesets in step 2.
NOTE: You have to have the approprite locales available for glibc!

4) Run make here.

5) Continue building uClibc from the toplevel dir.

if make fail,

./gen_wctype en_US
setlocale(LC_CTYPE,en_US) failed!
make: *** [wctables.h] Segmentation fault

The segfault is caused by the uninitialized variable uniqblock when
newopt is called recursively.

so, just use

memset(uniqblock, 0, sizeof(uniqblock ));