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Carlos O'Ryan commented on ARROW-17110: --------------------------------------- {quote} AFAIU, the problem is that the GCS C++ headers use Abseil, so we depend on the ABI no matter what. [~coryan] Is my understanding right? {quote} That is correct, `google-cloud-cpp` uses Abseil in headers. FWIW, gRPC now requires C++ >= 14: https://github.com/grpc/proposal/blob/master/L98-requiring-cpp14.md https://github.com/grpc/grpc/releases/tag/v1.47.0 so does google-cloud-cpp: https://github.com/googleapis/google-cloud-cpp/discussions/8740 https://github.com/googleapis/google-cloud-cpp/releases/tag/v2.0.0 I expect that Protobuf will follow suit sooner rather than later. The following policy, while yet adopted by any of these projects, may be informational: https://opensource.google/documentation/policies/cplusplus-support > [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)