Re: [Boost-users] 1.58.0 rc3 is now available

9 Apr 2015

      Am 09.04.2015 um 16:39 schrieb Marshall Clow:
...
On Thu, Apr 9, 2015 at 4:11 AM, Deniz Bahadir mailto:dbahadir@benocs.com> wrote:
Building Boost 1.58.0-rc3 succeeded only partially.
Success:
Debian 7 with GCC 4.8.2 (in C++03 mode) with build-command:
        b2 -j4 --build-dir=/opt/build/test --build-type=complete
    --layout=versioned address-model=64 architecture=x86 install
    --prefix="/opt/install/test" toolset=gcc-4.8 cflags="-fPIC"
    cxxflags="-fPIC" dll-path="/opt/test/lib/x86___64-linux-gnu"
Failure:
Debian 7 with GCC 4.8.2 (in C++11 mode) with build-command:
        b2 -j4 --build-dir=/opt/build/test --build-type=complete
    --layout=versioned address-model=64 architecture=x86 install
    --prefix="/opt/install/test" toolset=gcc-4.8 cflags="-fPIC"
    cxxflags="-fPIC -std=c++11" dll-path="/opt/test/lib/x86___64-linux-gnu"
The main-error seems to come from "Boost.Context" and the use of
    unknown "std::index_sequence":
std::index_sequence is a C++14 feature.
The question is then: Why is it used when I only enable C++11 features?

I suppose, GCC 4.8(.2) is too old to support std::index_sequence. (Or is 
it the bundled stdlibc++?)
When using C++14 mode ("cxxflags=-fPIC -std=c++1y") the same errors occur.

Deniz