This part of the build does not use the normal meson parameters, so we need to explicitly check for the meson --werror parameter, and if it's true, set the gcc -Werror parameter for this subdir's build.
This part of the build does not use the normal meson parameters, so we need to explicitly check for the meson --werror parameter, and if it's true, set the gcc -Werror parameter for this subdir's build.