Makefile.inc: Enable -Wtype-limits

This patch enables -Wtype-limits for the whole repository, which
disallows checking for a condition that must be always true or always
false based on type width (e.g. checking whether an unsigned variable is
negative or whether a 32-bit integer is larger than 4G). This helps
avoid easy to make and hard to find (because they often only affect
error paths) mistakes like

 size_t size = fmap_read_area(...);
 if (size < 0)
   die("If only the compiler could've told me to use ssize_t instead");

Change-Id: I19edabfd092d09dad720e3fc47b44838163bfe25
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32536
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

0 files changed, 0 insertions, 0 deletions