We link against static assimp libraries that are built for each platform and added to the aig/lib package. Depending on the platform we select one of them and link against it when doing go build.

Windows:

Note: You must compile with the same C/C++ compiler you use with Go (e.g. if you use MinGW with Go, then compile assimp with MinGW by sepcifying the correct -G option)

Note: If you get compilation errors with things like File too big or can't write 166 bytes to section then cmake isn't detecting you are using MinGW, so add this flag -D CMAKE_COMPILER_IS_MINGW=TRUE

Now assuming you are using MinGW on windows:

Clone wanted release of assimp and run cmake CMakeLists.txt -D BUILD_SHARED_LIBS=OFF -D ASSIMP_BUILD_ZLIB=ON -D ASSIMP_BUILD_ASSIMP_TOOLS=OFF -D ASSIMP_BUILD_TESTS=OFF -G "MinGW Makefiles" in the root folder
Run cmake --build . --parallel 6
Copy the generated *.lib file into aig/lib