[PATCH] Cygwin: Make gcc-specific code in <sys/cpuset.h> compiler-agnostic

[Corinna Vinschen]

On Jul  7 16:46, Jon Turney wrote:
> On 07/07/2023 10:44, Corinna Vinschen wrote:
> > Hi Mark,
> > 
> > On Jul  7 00:41, Mark Geisert wrote:
> > > The current version of <sys/cpuset.h> cannot be compiled by Clang due to
> > > the use of __builtin* functions.  Their presence here was a dubious
> > > optimization anyway, so their usage has been converted to standard
> > > library functions.  A popcnt (population count of 1 bits in a word)
> > > function is provided here because there isn't one in the standard library
> > > or elsewhere in the Cygwin DLL.
> > 
> > And clang really doesn't provide it?  That's unfortunate.
> 
> I suspect if we had a current clang this would not be a problem.
> 
> There's probably something to be said for solving this problem by removing
> our old and unmaintained clang packages...

Good point.


Corinna