[smpeg] Fix autoconf socklen_t macro

[Brad Smith]

On Sun, Apr 15, 2012 at 05:40:24AM -0400, Brad Smith wrote:
> Here is a patch to fix the socklen_t macro to be able to build and work on
> OpenBSD. This fixes the build of smpeg on OpenBSD.

Ryan?

> Index: acinclude/socklen_t.m4
> ===================================================================
> --- acinclude/socklen_t.m4	(revision 394)
> +++ acinclude/socklen_t.m4	(working copy)
> @@ -12,8 +12,9 @@
>  [AC_CACHE_CHECK([for socklen_t], ac_cv_type_socklen_t,
>  [
>    AC_TRY_COMPILE(
> -  [#include <sys/socket.h>],
> -  [socklen_t len = 42; return len;],
> +  [#include <sys/types.h>
> +  #include <sys/socket.h>],
> +  [socklen_t x;],
>    ac_cv_type_socklen_t=yes,
>    ac_cv_type_socklen_t=no)
>  ])
> 

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