On 11 Aug 2026 00:58, Tom Kent via Boost wrote:
Any ideas where that could be coming from? I'm pretty sure I don't set that manually.
https://github.com/boostorg/context/blob/cc1b9e02cd530d6607becc984e1e5bfa4f7... sysv is set by default. The default_abi rule is used by Boost.Context project in private requirements, i.e. it applies only to Boost.Context. If I'm not mistaken, for everyone else the sysv default remains in effect unless abi is specified on the command line. I think, the feature should be made optional with no default. Boost.Context can continue to use the default_abi rule to deduce it from the target platform, for everyone else it should not be set.
On Sat, Aug 8, 2026 at 12:15 AM <oliver.kowalke@gmail.com> wrote:
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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