[resend] Allow use of MAP_TRYFIXED for better mmap()

[Jon Bright]

Dimitrie O. Paun wrote:

> On Thu, 28 Aug 2003, Jon Bright wrote:
> 
> 
>>Except that if you build it on a machine which knows about MAP_TRYFIXED 
>>at all, the resulting binary's not likely to run on older machines...
> 
> 
> No, if the check is done at runtime, there's no problem. Where do you see any?

Having the necessary headers to compile with the 
macros/functions/whatever for MAP_TRYFIXED implies an up-to-date libc. 
An up-to-date libc implies the resulting binary will not run on older 
machines.

-- 
Jon Bright
Silicon Circus Ltd.
http://www.siliconcircus.com