glibc: Consider adding -Wno-error in cases when not using -O2
glibc has recently turned on Werror globally which is good but then not
all option combos are well tested so there still remains cleanup needed
when not using -O2, so lets just disable Werror in such cases, until
fixed upstream
Change-Id: I2d491c360a15b0752c97ff77ee0faaeede6e8d2a
(From OE-Core master rev:
52a90e8e592ddd228939e15d7fd0d69f3c1e816f)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Joshua Lock <joshua.lock@collabora.co.uk>
