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From: Franz Fehringer <fehrin2@gmail.com>
Subject: Re: ioperm / iopl / pciutils
Date: Mon, 30 Jan 2023 08:09:12 +0100
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Am 30.01.2023 um 03:35 schrieb Eliot Moss via Cygwin:
> On 1/30/2023 4:22 AM, Franz Fehringer via Cygwin wrote:
>> Hi all,
>>
>> Is there any Cygwin package providing the iopl et al. routines?
>> Google uncovers an ioperm package but that seems to be nothing current.
>> My goal is to compile https://github.com/pciutils/pciutils with Cygwin.
> 
> The package claims to be available under CYGWIN [sic].
> 
> What issue(s) are you having?
> 
> Eliot Moss
> 

In trying to compile pciutils (the lib part) (on Cygwin) the
#include <sys/io.h>
cannot be fulfilled with Cygwin.
#include <io.h>
would work but this header does not contain the definitions (or 
declarations) needed.
And this means iopl and Co.
There are other obstacles, but this is the biggest one.