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| H A D | cc-option.mk | 092db7fbba04072db5aa28cb11b0b0840e4c532f Wed May 17 08:31:53 UTC 2023 Jerome Forissier <jerome.forissier@linaro.org> build: add -Werror to cc-option check
Clang emits a warning, not an error, and returns a success status when
passed a -Wxxx option that it does not recognize. This makes the
cc-option macro behave incorrectly with Clang when testing such options.
$ aarch64-linux-gnu-gcc -Wdoes-not-exist -c -x c /dev/null
aarch64-linux-gnu-gcc: error: unrecognized command-line option ‘-Wdoes-not-exist’
$ echo $?
1
$ clang --target=aarch64-linux-gnu -Wdoes-not-exist -c -x c /dev/null
warning: unknown warning option '-Wdoes-not-exist'; did you mean '-Wmicrosoft-exists'? [-Wunknown-warning-option]
1 warning generated.
$ echo $?
0
Fix that by adding -Werror to the test command.
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
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