[oe] [RFC] /site question

[Denis 'GNUtoo' Carikli]

hi,
I only know what site is for,but:
*I'm not confident with it
*I bet it needs review before touching it
*I wouldn't know in which file I should add the changes
  Maybe common-glibc?

The issue I faced was that btoc.m4 wcrtomb.m4 had no
  defined behaviour in the case of cross-compilation in
  AC_TRY_RUN in fastjar 0.98

The attached patch is a first attempt to fix this issue 
  and is only here for better explanation of the issue
  (it doesn't even patch the site files)

Denis.