On 01/05/15 14:45 +0200, Rainer Orth wrote:
>Jonathan Wakely <jwakely@redhat.com> writes:
>
>> I've tested this on GNU/Linux and DragonFly BSD, but as it's probably
>> not going to build everywhere I've added the configure option
>> --enable-libstdcxx-filesystem-ts which defaults to enabled on GNU, BSD
>> and Solaris targets, and disabled elsewhere for now. If it fails to
>> build on any of those targets we can change the default while we fix
>> the problem.
>
>Unfortunately, the patch breaks Solaris 10 bootstrap, which lacks
>fchmodat:
>
>/vol/gcc/src/hg/trunk/local/libstdc++-v3/src/filesystem/ops.cc: In function 'void std::experimental::filesystem::v1::permissions(const std::experimental::filesystem::v1::__cxx11::path&, std::experimental::filesystem::v1::perms, std::error_code&)':
>/vol/gcc/src/hg/trunk/local/libstdc++-v3/src/filesystem/ops.cc:890:17: error: '::fchmodat' has not been declared
>   if (int err = ::fchmodat(AT_FDCWD, p.c_str(), static_cast<mode_t>(prms), 0))
>                 ^
>make[6]: *** [ops.lo] Error 1

Sorry about that, I'll add a check for fchmodat, in the meantime this
will fix bootstrap. Committed as obvious.