for Windows '<abi>sysv' is wrong - I believe it should be '<abi>ms' 08.08.2026 04:16:00 Tom Kent via Boost <boost@lists.boost.org>:
Still seeing the same config issue I reported for the beta RC:
- long double support : yes (cached) [2] - std_wstreambuf : yes (cached) [2] error: No best alternative for /D:/RB/boost_1_92_0/libs/graph_parallel/build/boost_graph_parallel with <abi>sysv <address-model>32 <architecture>x86 <asynch-exceptions>off <binary-format>elf <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 <debug-store>object <debug-symbols>on <embed-manifest-via>linker <embed-manifest>on <exception-handling>on <extern-c-nothrow>off <inlining>off <known-warnings>hide <link>shared <midl-robust>yes <midl-stubless-proxy>yes <optimization>off <os>NT <pch>on <preserve-test-targets>on <profiling>off <python-debugging>off <python>3.14 <rtti>on <runtime-debugging>on <runtime-link>shared <stdlib>native <strip>off <target-os>windows <testing.execute>on <threadapi>win32 <threading>multi <toolset-msvc:version>14.1 <toolset>msvc <variant>debug <vectorize>off <visibility>hidden <warnings-as-errors>off <warnings>on <windows-api>desktop <x-deduced-platform>x86_32 matched: (empty) matched: (empty) - lzma : no (cached) [2] - zstd : no (cached) [2]
Other than that, things look good on Windows/Visual Studio:
toolset arch compile Link Execute msvc-14.1 32 X X X msvc-14.1 64 X X X msvc-14.2 32 X X X msvc-14.2 64 X X X msvc-14.3 32 X X X msvc-14.3 64 X X X msvc-14.5 32 X X X msvc-14.5 64 X X X
Compile means that the b2 command completed without errors Link means that visual studio was able to link a sample executable to a library (libboost_thread-vcXXX-mt[-gd]-1_XX.lib) generated Execute means that the linked program executed without errors.
Logs here: https://gist.github.com/teeks99/39e711e05d42fe58959360a1b3e42c7f
Tom
On Thu, Aug 6, 2026 at 9:41 AM Ion Gaztañaga via Boost < boost@lists.boost.org> wrote:
The first release candidates for the 1.92.0 release are now available at: https://archives.boost.io/release/1.92.0/source/
The SHA256 checksums are as follows:
c4a3b310ddd2472416e091067166b0713be97c63f38c212c484ada022fd296ce boost_1_92_0_rc1.tar.gz
57f2ded2390068a44d88748425067e01a8c285257a4d9611d04ade9d8ec68615 boost_1_92_0_rc1.7z
c46baee75ed4b558cf6553630d0615a147ed582812917b57e6f0839d1954549f boost_1_92_0_rc1.zip
5c1d40cb8e19adbf740a4ec2da35b3e58f3f5804b1dce44deb53df72193cbc6c boost_1_92_0_rc1.tar.bz2
As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy.
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