CXX-2750 Remove references to BSONCXX_ABI_VERSION and MONGOCXX_ABI_VERSION #1034
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eramongodb
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kevinAlbs
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Oct 9, 2023
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Resolves CXX-2750. (Excuse the ticket/branch number confusion; this PR does not address CXX-2745, although it makes preparations for it.)
To accomodate the presence of multiple ABI namespaces, the
BSONCXX_ABI_VERSIONandMONGOCXX_ABI_VERSIONCMake variables are no longer suitable, as they imply the presence of only a single definitive ABI version. This PR substitutes all current references to these variables with an explicit_noabi(the current and only supported ABI version). This includes the following changes to derivative variables:${<NAME>_ABI_NAMESPACE}->_noabi${<NAME>_HEADER_INSTALL_DIR}->${CMAKE_INSTALL_INCLUDEDIR}/<name>/v_noabi${<NAME>_INLINE_NAMESPACE}->v_noabiThese changes are primarily concerned with CMake project configuration variables and corresponding package config files. These changes should NOT affect the source or binary compatibility of the
v_noabilibraries (verified by this compat report), and they should not affect downstream users of the CXX Driver using any of the primary supported package import methods.There is one benign exception: the
bsoncxx::v_noabi::k_silence_doxygensymbol inbsoncxx/json.hpp(which has no definition) is removed (identified by the mention of the inline namespace macro in the corresponding documentation comment). It is no longer relevant or necessary due to theExtendedJsonModeenumeration being placed between the inline namespace macro andto_json(). This symbol appears to be solely for documentation-purposes. It's removal is technically a source compatibility break (as indicated by the compat report linked above), but I do not expect this should affect any downstream users (it really shouldn't).