Re: AC_SEARCH_LIBS with appropriate system headers

[Ralf Wildenhues]

Hello Zack,

* Zack Weinberg wrote on Tue, Jul 12, 2011 at 01:23:46AM CEST:
> The obvious way to detect that you're on MinGW and you need to stick
> -lws2_32 on your link line for 'ntohl' is
[...]

>     AC_LANG_CONFTEST([AC_LANG_PROGRAM(
>     [#ifdef _WIN32
>     #include <winsock2.h>
>     #else
>     #include <arpa/inet.h>
>     #endif],
>     [return (int)ntohl(42);])])
> 
> Is there a neater way to do this test than by copying the entire
> definition of AC_SEARCH_LIBS into my configure.ac (or my aclocal.m4)
> and hacking it up?

Maybe wrap your AC_SEARCH_LIBS call into
  m4_pushdef([AC_LANG_CALL], [modified version that does TRT])dnl
  ...
  m4_popdef([AC_LANG_CALL])dnl

Hope that helps.

Cheers,
Ralf