Re: Fwd: Error building Boost: "no best alternative for headers"

Robert, thank you for your suggestions. I too need to use the mklink /D
trick to shorten the path names.

On Sat, Jan 12, 2019 at 2:39 AM Robert via Boost-build <
[email protected]> wrote:

> On 1/8/2019 11:01 PM, Ben Ernst via Boost-build wrote:
> > I am completely unable to build Boost libraries. I have been building on
> > this same computer for many years, so this issue is confounding to me.
> > I'm posting here in the hope that this peculiar error message might ring
> > a bell with someone.
> >
> > After bootstrapping, when executing "b2.exe", before getting into the
> > actual build (which fails), these error messages are repeated multiple
> > times:
> >
> >     error: No best alternative for ./headers
> >          next alternative: required properties: (empty)
> >              matched
> >          next alternative: required properties: (empty)
> >              matched
> >
> >
> > I have attached console output from the offending build.
> >
> > My actual command line is:
> >
> >     .\b2 -j8 toolset=msvc-14.1 --build-type=minimal --without-mpi
> >     --without-python address-model=32 link=shared threading=multi
> >     runtime-link=shared windows-api=desktop stage
> >
>
> Hello Ben,
>
> I have not observed this error before.  However, I always surround the
> toolset value with quotes.  AFAIK, it is not supposed to matter, but ...
>
> toolset="msvc-14.1"
>
> Additionally, I suppose it is possible the b2 .cmd files located inside
> the %localappdata%\temp directory have inconsistent content.  The file
> names I see on mine for msvc-14.1 are named:
>
> b2_msvc_14.1_vcvars32_.cmd
> b2_msvc_14.1_vcvarsx86_amd64_.cmd
>
> With Visual Studio 2017, the paths are quite long.  What I have to do is
> use a very short starting point with the mklink /D option (e.g. C:\v7).
> The C:\v7 starts at:
>
> C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise
>
> I create a build forum post with more details using the Windows Intel
> compiler back on June 23, 2017, 11:47 am.  It might be a good reference.
>   I hope this helps.
>
> Sincerely,
>
> Robert
>
> >
> > Thanks in advance!
> >
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