Re: Cross-platform availability of header files

[Zack Weinberg]

On 2013-03-15 8:57 AM, Ralf Corsepius wrote:
> aio.h and sys/mman.h are not available everywhere

aio.h certainly, but are you aware of a *specific Unix-like system* 
which is in current use and does not provide <sys/mman.h>?  That header 
is mandatory in POSIX-2008 (although not before then) and the last time 
I can remember encountering a workstation-scale Unix environment that 
didn't have it was in the mid-nineties sometime.  I'd believe there 
might be embedded mostly-POSIX-compliant environments still that don't 
do virtual memory, but I've never seen one.

zw