Hello, On Sat, 6 Mar 2021 at 21:25, Bertrand Jacquin <[email protected]> wrote: > > gcc returns non zero code if an option is not supported (tested > from 6.5 to 10.2). > > $ gcc -Wfoobar -E -xc - -o /dev/null < /dev/null > /dev/null 2>&1 ; echo $? > 1 > > clang always return 0 if an option in not recognized unless > -Werror is also passed, preventing a correct probing of options > supported by the compiler (tested with clang 6.0.1 to 11.1.0)
-Werror is more than just "-Wunknown-warning-option" on clang. -Werror/ERR is specifically optional in the Makefile. If we want to change the haproxy build-system to do -Werror from now on we need a) discuss it and b) fix it all up. We can't hardcode -Werror and at the same time claim that it's an optional parameter. Lukas
