grep: fix builds with gettext 0.20.x (musl)

Update patch to also AC_CHECK_FUNCS([setlocale]).
Various #include <locale.h> are guarded by the outcome of that,
and otherwise compilation fails, e.g.:
| ../../grep-2.5.1a/src/dfa.c:1366:34: error: 'LC_COLLATE' undeclared (first use in this function); did you mean 'REG_ECOLLATE'?
|  1366 |   hard_LC_COLLATE = hard_locale (LC_COLLATE);
|       |                                  ^~~~~~~~~~
|       |                                  REG_ECOLLATE

It appears that this test used to be triggered by (implied with)
the old gettext version, but now it isn't.

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Ross Burton <ross.burton@intel.com>

0 files changed, 0 insertions, 0 deletions