Add the __extension__ mark before #include_next in strings.h
to avoid a compiler error when -pedantic is enabled.
This has been done for all other headers in the past.
Signed-off-by: Matthias Van Parys <matthias.vanparys@softathome.com>
(cherry picked from commit 2425d6df12)
some targets do not define the _REDIR_TIME64 macro resulting in a
build error regression since ddfe5678a4
fix by checking if the macro is defined
[1] https://github.com/openwrt/openwrt/issues/12587Fixes: #12587
Fixes: ddfe5678a4 ("fortify-headers: fix inconsistent time_t version of ppoll")
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>