posix: Fix regex_internal.h on bootstrap
authorAdhemerval Zanella <adhemerval.zanella@linaro.org>
Wed, 20 Jan 2021 12:55:17 +0000 (12:55 +0000)
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>
Wed, 20 Jan 2021 12:59:34 +0000 (09:59 -0300)
commit1006250ea2d683e684f65911d738bd84f55c06c1
treea5989b65f8115e3bb9f86c1bfb3a7f1cc25de832
parent22b79ed7f413cd980a7af0cf258da5bf82b6d5e5
posix: Fix regex_internal.h on bootstrap

Only define FALLTHROUGH for _LIBC and do not check __clang_major__
value.

It partially syncs with gnulib 5c52f00c69f39fe.

Checked with build-many-glibcs.py for aarch64-linux-gnu,
x86_64-linux-gnu, and s390x-linux-gnu.
posix/regex_internal.h