Re: Build Issue - URL - msvc-14.0

From: Peter Dimov (pdimov_at_[hidden])
Date: 2022-11-05 17:34:49

Vinnie Falco wrote:
> On Sat, Nov 5, 2022 at 10:09 AM Tom Kent <lists_at_[hidden]> wrote:
> > I'm still seeing this issue on the latest nightly build. Is it
> > possible this is stuck on develop? Or the rules don't prevent URL from
> > building on msvc-14.0?
> 
> I'm pretty sure we updating both develop and master to exclude msvc-14.0:
> 
> https://github.com/boostorg/url/blob/develop/meta/explicit-failures-
> markup.xml#L22
> https://github.com/boostorg/url/blob/master/meta/explicit-failures-
> markup.xml#L22
> 
> Maybe we need to do more? I don't know, but the matrix looks like it is being
> excluded.

You need to fix your Jamfile to disable the library for msvc-14.0, because
your current checks do not exclude it. Add <toolset>msvc-14.0:<build>no
either somewhere here

https://github.com/boostorg/url/blob/643d959e3db8b59cf3f065ec1738cd0197c70b02/build/Jamfile#L11

or here

https://github.com/boostorg/url/blob/643d959e3db8b59cf3f065ec1738cd0197c70b02/Jamfile#L13

C:\boost-git\develop\libs\url>b2 build toolset=msvc-14.0
Performing configuration checks

    - default address-model    : 64-bit (cached) [1]
    - default architecture     : x86 (cached) [1]
    - symlinks supported       : yes (cached)
    - cxx11_constexpr          : yes (cached) [2]
    - cxx11_decltype           : yes (cached) [2]
    - cxx11_hdr_tuple          : yes [2]
    - cxx11_template_aliases   : yes [2]
    - cxx11_variadic_templates : yes [2]
    - cxx11_constexpr          : yes (cached) [3]
    - cxx11_decltype           : yes (cached) [3]
    - cxx11_hdr_tuple          : yes (cached) [3]
    - cxx11_template_aliases   : yes (cached) [3]
    - cxx11_variadic_templates : yes (cached) [3]

[1] msvc-14.0
[2] msvc-14.0/debug/python-2.7/threadapi-pthread/threading-multi/visibility-hidden
[3] msvc-14.0/debug/python-2.7/threadapi-win32/threading-multi/visibility-hidden
...patience...
...found 1343 targets...
...updating 9 targets...
compile-c-c++ ..\..\bin.v2\libs\url\build\msvc-14.0\debug\threading-multi\src.obj
src.cpp
C:\boost-git\develop\boost/url/grammar/lut_chars.hpp(262): warning C4800: 'uint64_t': forcing value to bool 'true' or 'false' (performance warning)
C:\boost-git\develop\boost/url/grammar/detail/tuple.hpp(83): warning C4814: 'boost::urls::grammar::detail::tuple_element_impl<I,T>::get': in C++14 'constexpr' will not imply 'const'; consider explicitly specifying 'const'
C:\boost-git\develop\boost/url/grammar/detail/tuple.hpp(91): note: see reference to class template instantiation 'boost::urls::grammar::detail::tuple_element_impl<I,T>' being compiled
C:\boost-git\develop\boost/url/param.hpp(886): error C2134: 'boost::urls::grammar::string_view_base::string_view_base': call does not result in a constant expression
C:\boost-git\develop\boost/url/param.hpp(886): note: failure was caused by call of undefined function or one not declared 'constexpr'
C:\boost-git\develop\boost/url/grammar/string_view_base.hpp(72): note: see declaration of 'boost::urls::grammar::string_view_base::string_view_base'
C:\boost-git\develop\boost/url/rfc/pchars.hpp(45): error C2127: 'boost::urls::pchars': illegal initialization of 'constexpr' entity with a non-constant expression
C:\boost-git\develop\boost/url/grammar/lut_chars.hpp(300): note: a non-constant (sub-)expression was encountered