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H. Vetinari commented on ARROW-17110: ------------------------------------- Just FYI, conda-forge [now|https://github.com/conda-forge/abseil-cpp-feedstock/pull/35] provides static builds of C++11/C++14 as "escape hatches" for packages that cannot yet use the C++17 dynamic libs. This takes the heat off a little bit - i.e. it allows packages to move at their own speed w.r.t to C++, as opposed to forcing a conda-forge-wide choice for abseil -, but note that the next abseil version will still drop C++11 compatibility, so a move to at least C++14 will still be necessary in the near-ish future. > [C++] Move away from C++11 > -------------------------- > > Key: ARROW-17110 > URL: https://issues.apache.org/jira/browse/ARROW-17110 > Project: Apache Arrow > Issue Type: Task > Components: C++ > Reporter: H. Vetinari > Priority: Major > > The upcoming abseil release has dropped support for C++11, so > {_}eventually{_}, arrow will have to follow. More details > [here|https://github.com/conda-forge/abseil-cpp-feedstock/issues/37]. > Relatedly, when I > [tried|https://github.com/conda-forge/abseil-cpp-feedstock/pull/25] to switch > abseil to a newer C++ version on windows, things apparently broke in arrow > CI. This is because the ABI of abseil is sensitive to the C++ standard that's > used to compile, and google only supports a homogeneous version to compile > all artefacts in a stack. This creates some friction with conda-forge (where > the compilers are generally much newer than what arrow might be willing to > impose). For now, things seems to have worked out with arrow > [specifying|https://github.com/apache/arrow/blob/897a4c0ce73c3fe07872beee2c1d2128e44f6dd4/cpp/cmake_modules/SetupCxxFlags.cmake#L121-L124] > C\+\+11 while conda-forge moved to C\+\+17 - at least on unix, but windows > was not so lucky. > Perhaps people would therefore also be interested in collaborating (or at > least commenting on) this > [issue|https://github.com/conda-forge/abseil-cpp-feedstock/issues/29], which > should permit more flexibility by being able to opt into given standard > versions also from conda-forge. -- This message was sent by Atlassian Jira (v8.20.10#820010)