This resolves an error when building toolchain/musl on macOS due to
improper hole-detection caused by a bug in macOS/APFS [1].
As long as we don't reconfigure, 001-m4.patch is not needed.
If we keep it, it will force reconfigure the project,
since m4 files are changed. This works, but may not be optimal,
because the build should use files from coreutils/m4, but
OpenWRT uses legacy files from staging_dir/host/share/aclocal [2].
backport a couple of upstream patches
date: diagnose -f read errors
copy: fix --reflink=auto to fallback in more cases
[1] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=61386
[2] https://github.com/openwrt/openwrt/pull/12233#issuecomment-1481097456
Co-developed-by: Michael Pratt <mcpratt@pm.me>
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
