[PATCH] Some fixes from trying to build on OpenBSD

[Thomas Nagy]

On Mon, 16 Nov 2015 16:53:15 +0100, Volker Lendecke wrote:

> Hi!
> 
> Review&push appreciated!
> 

The new "malloc.h" test is wrapped by:
    if not conf.CHECK_DECLS('malloc', headers='stdlib.h'):
in one place, but not in the other. Is that intentional?

Thomas