[PATCH] fix #19444 - build failures with -O1 due to -Wmaybe-uninitialized

[Andreas Schwab]

Martin Sebor <msebor@gmail.com> writes:

> +# GCC's -Wmaybe-uninitialized depends on optimization and is documented
> +# to issue false positives at -O1 (or lower).  If -O1 or lower is found
> +# in CFLAGS, prevent such warnings from being treated as errors.
> +ifneq ($(filter-out -O -O1, $(CFLAGS)),$(CFLAGS))

That doesn't grasp the true effect of CFLAGS, since it is easy to get
multiple optimisation options into it.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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