Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx> writes: > The set of extra warnings we enable when DEVELOPER has to be > conservative because we can't assume any compiler version the > developer may use. Detect the compiler version so we know when it's > safe to enable -Wextra and maybe more. This is a good idea in general, but we are not quite ready without some fixups. Here is a quick summary (not exhaustive) from my trial merge to 'pu' (which will be reverted before today's integration is pushed out). - json-writer.c triggers -Werror=old-style-decl - t/helper/test-json-writer.c triggers Werror=missing-prototypes quite a few times. - connect.c -Werror=implicit-fallthough around die_initial_contact().