Hey

Ive build mongo C in static mode. 2x, 1x for debug, and 1x for debug-release.

Between each build, I copied the generated files to a new folder as the debug files do not come with "d" suffix which then overwrites other files.

With these files, I then configures mongo CXX to use static mongo C files and asked it to produce both Static & Shared libraries.

That has been compiled. For this, I made 2 vs projects. 1 for debug and 1 for debug-release so to not confuse configs...

I linked each project to their proper mongo C .lib files.

So I end up with

Mongo C & Mongo CXX in debug

Mongo C & Mongo CXX in debug release.

I've then included the resulting lib files in my cmake project using if statement to determine if I'm in debug or not >

if (CMAKE_BUILD_TYPE MATCHES Debug)
    set(3rd_libs_MONGO
            ${MONGODB_ROOT}lib/bsoncxxd.lib
            ${MONGODB_ROOT}lib/bson-static-1.0d.lib
            ${MONGODB_ROOT}lib/mongoc-static-1.0d.lib
            ${MONGODB_ROOT}lib/bsoncxx-staticd.lib
            ${MONGODB_ROOT}lib/mongocxx-staticd.lib
            )
else ()
    set(3rd_libs_MONGO
            ${MONGODB_ROOT}lib/bsoncxx.lib
            ${MONGODB_ROOT}lib/bson-static-1.0.lib
            ${MONGODB_ROOT}lib/mongoc-static-1.0.lib
            ${MONGODB_ROOT}lib/bsoncxx-static.lib
            ${MONGODB_ROOT}lib/mongocxx-static.lib
            )
endif ()
target_link_libraries(${PROJECT_NAME} ${3rd_libs_MONGO})

After that when I try to run the app I get > 

main.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl mongocxx::v_noabi::options::client_session::client_session(void)" (__imp_??0client_session@options@v_noabi@mongocxx@@QEAA@XZ) referenced in function "void __cdecl arrayTests(void)" (?arrayTests@@YAXXZ)

and 300 more errors like this.

This project was working with previous dynamic libraries, .dll, from last year. But as I was updating mongo I figures I might as well go with static & recompile it all.

How can I "fix" this issue? 

Regards

Dariusz

Win10x64

vs 17+