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Re: [PATCH] nios2-linux: add missing cpp specs


On 29 May 2015 12:32, Sandra Loosemore wrote:
> On 05/29/2015 11:36 AM, Mike Frysinger wrote:
> > On 29 May 2015 08:44, Sandra Loosemore wrote:
> >> On 05/27/2015 10:00 AM, Mike Frysinger wrote:
> >>> Define CPP_SPEC for nios2 linux targets so that -posix & -pthread work
> >>> like on all other linux targets.
> >>>
> >>> 2015-05-27  Mike Frysinger  <vapier@gentoo.org>
> >>>
> >>> 	* config/nios2/linux.h (CPP_SPEC): Define.
> >>
> >> I see that -posix is not documented at all in invoke.texi and -pthread
> >> is documented only for RS6000 and Solaris (which is not Linux).  What,
> >> exactly, are these options supposed to do on "all other linux targets"?
> >>    If these options are supposed to be generic to all Linux targets,
> >> can't they be handled in some common way instead of duplicating the
> >> CPP_SPEC code in all the individual back ends?
> >
> > please see my other threads/patches
> 
> (Sorry, I am a few days behind in mailing list traffic, was just trying 
> to respond to the review request that was CC'ed to me directly.)
> 
> Do you mean this one?
> 
> https://gcc.gnu.org/ml/gcc-patches/2015-05/msg02708.html

yes

> That addresses my concern about not duplicating this in every back end, 
> but I still don't see any documentation and don't really understand what 
> these flags are supposed to do or why I might need to add them to my 
> command line.  Taking off my nios2 maintainer hat and putting on the 
> docs maintainer one instead, I think proper documentation for these 
> options is a requirement here....

i'm not familiar with the history.  i'm merely cleaning up some of the mess.
both defines are respected by glibc and make a difference to compilation.
-mike

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