busybox: Do not define global 'const' with clang
This helps fix segfaults when compiling with clang, the option to
define global const is configurable now in busybox [1] [2]
Turn ptr_to_globals and bb_errno to be non const
writing to a const variable is undefined behavior
This is undefined as per (C99 6.7.3 paragraph 5) see [1]
errno and ptr_to_globals is written to in code, this fails with
segfaults when compiled with clang
[1] https://git.busybox.net/busybox/commit/?id=1f925038a
[2] https://lists.busybox.net/pipermail/busybox/2022-January/089413.html
(From OE-Core rev: 091d162f29dfefe2716d3b793cea55b9f14d684d)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Khem Raj