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 <vap...@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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