Hi all, MATLAB uses the Arrow C++ libraries (i.e. libarrow.so) to read and write Parquet files (https://www.mathworks.com/help/matlab/ref/parquetread.html) While exploring ways to integrate more tightly with Arrow, we've run into a symbol/library naming clash issue.
When running pyarrow within the MATLAB process (https://www.mathworks.com/help/matlab/call-python-libraries.html?s_tid=CRUX_lftnav ), the libarrow.so loaded by pyarrow clashes with the libarrow.so shipping with MATLAB. A few questions: 1. Is there a preferred way to change the internal "SONAME" of libarrow.so * It would be nice to be able to easily change the “SONAME”<https://www.programmersought.com/article/3694626819/> to something like "arrowmw", in the case of MATLAB. We are not talking about the library name per se., but the name used by the linker to load the dll. https://www.programmersought.com/article/3694626819/ * I noticed there is a CMake set_target_properties LIBRARY_OUTPUT_NAME option. Is this the best way to achieve this? 1. Does the CMake build system for the Arrow C++ libraries expose any preexisting flags to change the default arrow C++ namespace name? (e.g. in the style of the BCP tooling provided by the boost libraries)? * To ensure that we have sufficiently isolated the libarrow.so shipping with MATLAB, we need to isolate the exported headers (i.e. change “namespace arrow” to “namespace arrowmw”). * However, just changing the interface namespace might not be enough. We also need to isolate the implementation. * C++ ODR violations can occur with classes, template and inline code, not just functions imported from the shared library; the runtime linker will merge symbols with the same fully-qualified name even if there was no compile or link time dependency between files. * i.e. we need to change call site references from “arrow::status” to arrowmw::status” To summarize: 1. Is there a Cmake option to change the build- level internal library name? 1. Are there any CMake options we can pass at build time to use "custom namspacing" when building the Arrow C++ libraries? and/or is there any BCP boost / llvm clang tooling that can aid in automating renaming of call site / changing namespace? Thanks Tahsin
