
Convert "(void)&" constructs to "volatile". Check gid against (gid_t)-1 rather than >= 0; gid_t is unsigned. Flag some parameters __unused so this will compile with -Werror.
Convert "(void)&" constructs to "volatile". Check gid against (gid_t)-1 rather than >= 0; gid_t is unsigned. Flag some parameters __unused so this will compile with -Werror.