configure: Compile with -Wimplicit-fallthrough=2
commit0a2ebce92a3f10a89843e4a7a8e2f2eba4f7b109
authorThomas Huth <thuth@redhat.com>
Fri, 11 Dec 2020 15:24:26 +0000 (11 16:24 +0100)
committerThomas Huth <thuth@redhat.com>
Fri, 18 Dec 2020 08:15:47 +0000 (18 09:15 +0100)
treed7aab8bbd6fa586bb230a4960606104c456f6de0
parent61e21b05de63e044dcc24b37ecec7514e326f62c
configure: Compile with -Wimplicit-fallthrough=2

Coverity always complains about switch-case statements that fall through
the next one when there is no comment in between - which could indicate
a forgotten "break" statement. Instead of handling these issues after
they have been committed, it would be better to avoid them in the build
process already. Thus let's enable the -Wimplicit-fallthrough warning now.
The "=2" level seems to be a good compromise between being too strict and
too generic about the possible comments, so we'll start with "=2" for now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20201211152426.350966-13-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
configure