[patch] libstdc++/65142 Check read() result in std::random_device.

[Moore, Catherine]

> -----Original Message-----
> From: gcc-patches-owner@gcc.gnu.org [mailto:gcc-patches-
> owner@gcc.gnu.org] On Behalf Of Jonathan Wakely
> Sent: Thursday, September 17, 2015 5:28 PM
> To: Gerald Pfeifer
> Cc: libstdc++@gcc.gnu.org; gcc-patches@gcc.gnu.org
> Subject: Re: [patch] libstdc++/65142 Check read() result in
> std::random_device.
> 
> On 17/09/15 22:21 +0200, Gerald Pfeifer wrote:
> >On Thu, 17 Sep 2015, Jonathan Wakely wrote:
> >>> Any comments on this version?
> >> Committed to trunk.
> >
> >Unfortunately this broke bootstrap on FreeBSD 10.1.
> >
> >/scratch/tmp/gerald/gcc-HEAD/libstdc++-v3/src/c++11/random.cc: In
> member function 'std::random_device::result_type
> std::random_device::_M_getval()':
> >/scratch/tmp/gerald/gcc-HEAD/libstdc++-v3/src/c++11/random.cc:144:22:
> >error: 'errno' was not declared in this scope
> >  else if (e != -1 || errno != EINTR)
> >                      ^
> >/scratch/tmp/gerald/gcc-HEAD/libstdc++-v3/src/c++11/random.cc:144:31:
> >error: 'EINTR' was not declared in this scope
> >  else if (e != -1 || errno != EINTR)
> >                               ^
> >Makefile:545: recipe for target 'random.lo' failed
> >
> >I probably won't be able to dig in deeper today, but figured this might
> >already send you on the right path?
> >
> >Actually...
> >
> >...how about he patch below?  Bootstraps on i386-unknown-freebsd10.1,
> >no regressions.
> 
> Sorry about that, I've committed your patch.
> 
> >Gerald
> >
> >
I'm still seeing errors for a build of the mips-sde-elf target with these patches.

Errors are:
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc: In function 'void {anonymous}::print_word({anonymous
}::PrintContext&, const char*, std::ptrdiff_t)':
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:573:10: error: 'stderr' was not declared in this scop
e
  fprintf(stderr, "\n");
          ^
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:573:22: error: 'fprintf' was not declared in this sco
pe
  fprintf(stderr, "\n");
                      ^
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:596:14: error: 'stderr' was not declared in this scop
e
      fprintf(stderr, "%s", spacing);
              ^
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:596:35: error: 'fprintf' was not declared in this sco
pe
      fprintf(stderr, "%s", spacing);
                                   ^
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:600:24: error: 'stderr' was not declared in this scope
  int written = fprintf(stderr, "%s", word);
                        ^
/scratch/cmoore/virgin-upstream-elf-lite/src/gcc-trunk-5/libstdc++-v3/src/c++11/debug.cc:600:42: error: 'fprintf' was not declared in this scop
e
  int written = fprintf(stderr, "%s", word);
                                          ^

Thanks,
Catherine