I have a code that uses std=c++20.
I want to use a C library that was build with old gcc version.
Should I recompile the C library using the same compiler ?
If no, how could you judge that the 2 ABIs are compatible?
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Answer
There should be no problem using the library as it is. Don’t forget to add extern "C" around the function prototypes.
More info: Using C Libraries for C++ Programs