On Thu, Jan 16, 2025 at 12:09 PM Дмитрий Архипов via Boost-users <
boost-users@lists.boost.org> wrote:
> чт, 16 янв. 2025 г. в 18:10, Nicholas Williams via Boost-users
> <boost-users@lists.boost.org>:
>
> > error: No best alternative for {dir}/libs/mpi/build/boost_mpi with
> <abi>aapcs <address-model>64 <architecture>arm <asynch-exceptions>off
> <binary-format>mach-o <boost.beast.allow-deprecated>on
> <boost.beast.separate-compilation>on <boost.cobalt.executor>any_io_executor
> <boost.cobalt.pmr>std <context-impl>fcontext <coverage>off
> <cxxstd-dialect>iso <cxxstd>20 <debug-symbols>off <exception-handling>on
> <extern-c-nothrow>off <inlining>full <instruction-set>nocona
> <known-warnings>hide <link>shared <optimization>speed <os>MACOSX <pch>on
> <preserve-test-targets>on <profiling>off <python-debugging>off <python>3.9
> <rtti>on <runtime-debugging>off <runtime-link>shared <stdlib>native
> <strip>off <target-os>darwin <testing.execute>on <threadapi>pthread
> <threading>multi <toolset-clang:platform>darwin <toolset-clang:version>14
> <toolset>clang <variant>release <vectorize>off <visibility>hidden
> <warnings-as-errors>off <warnings>on <x-deduced-platform>arm_64
> > matched: (empty)
> > matched: (empty)
>
> This essentially says "there are several recipes for target boost_mpi,
> and I cannot decide which is the best". The interesting thing is that
> there's actually only one alternative for that target, as far as I can
> see in the build script for Boost.MPI. Well, there's another one, but
> it is only defined if MPI is not configured.
> > I used scare quotes around "errors,"
>
> The error should result in boost_mpi not being built. If you don't
> actually need it, add --without-mpi to your b2 invocation command.
>
Ah, yes, indeed, it is not being built (there is no library file output,
even though the b2 output initially says "- mpi : building."
We do need to build it, as far as I know.
>
> > Any insights or guidance would be appreciated.
>
> Can you provide the full command, the full b2 output and the contents
> of your project-config.jam (and any other b2 config files, if there
> are any)? The latter two are probably better put into gists.
>
This is from just one platform (as stated in my original post, all
platforms have the exact same error):
https://gist.github.com/beamerblvd/5bbc952d8ece4a44e38df8630837114a
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