Re: AC_CHECK_FUNCS vs. undeclared entry points

[Noah Misch]

On Fri, Apr 14, 2006 at 02:53:30PM +0000, Eric Blake wrote:
> It turns out that gettext was doing AC_CHECK_FUNCS([__argz_stringify]).  Well,
> on cygwin, the entry point __argz_stringify is defined as an alias to
> argz_stringify, so the conftest.c program links just fine because it provides
> its own prototype, while l10nflist.c fails to compile because the __*
> variants are not declared in any header.

> Should we change AC_CHECK_FUNCS to also check for a prototype?

No.  Gettext should use AC_CHECK_DECLS in place of or in addition to 
AC_CHECK_FUNCS.