Le 12/16/16 à 21:52, Steffan Karger a écrit :
>> +AX_CHECK_COMPILE_FLAG([ -Werror=implicit ], [
>> + CFLAGS_EXTRA="$CFLAGS_EXTRA -Werror=implicit"
>> +])
>> +AX_CHECK_COMPILE_FLAG([ -Werror=format -Werror=format-security ], [
>> + CFLAGS_EXTRA="$CFLAGS_EXTRA -Werror=format -Werror=format-security"
>> +])
>> +
>
> Shouldn't there be a CFLAGS="${CFLAGS} ${CFLAGS_EXTRA}" somewhere? Or
> just use CFLAGS directly, instead of _EXTRA. Without that, I don't see
> the flags appear in the make output.(how did I miss that?) anyway, there's also https://fossies.org/linux/alsa-lib/m4/attributes.m4 bigger, GPL2+, and it defines macros that simply append to CFLAGS (e.g. CC_CHECK_CFLAG_APPEND) BTW, instead of failing on these 3 specific warnings, we could go the opposite way, since -Wall is quite silent. I suggest: -Wall -Wno-unused -Wno-pointer-sign -Werror -Wno-error=strict-aliasing -Werror=format-security Julien
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