Eric Blake wrote: > gl_CHECK_NEXT_HEADERS invokes AC_CHECK_HEADERS under the hood.
Well, it does, but it's not documented. It's an abstraction violation to exploit this knowledge (even though we do in some places). > That means several other .m4 file can probably be simplified: Reducing two invocations of AC_CHECK_HEADERS_ONCE to a single one will IMO not bring large benefits. I would leave the uses of gl_CHECK_NEXT_HEADERS alone. Working on the compile-time warning instead of the link warning is more promising. Bruno
