[PATCH 51/59] poix: Only enable -Wmaybe-uninitialized suppression on gcc

[Collin Funk]

Adhemerval Zanella <adhemerval.zanella@linaro.org> writes:

> clang does not support this option.
> ---
>  posix/fnmatch_loop.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)

Looks obvious to me and change is under _LIBC defintion, so irrelevant
for Gnulib.

Reviewed-by: Collin Funk <collin.funk1@gmail.com>

Thanks,
Collin