I'm working on making a plugin manager for an application I'm writing. I have it implemented, along with a test app, a C plugin, and a C++ plugin. I use a .DEF file for exporting symbols from the plugins. The symbols have the stdcall calling convention. The .DEF file is specified in my CMake source list. When everything is compiled with MSVC, everything works as expected.
Now I wish to compile one of the plugins using MSYS/MinGW to ensure that the plugins can be compiled in alternate compilers. However, the GetProcAddress function fails to find the symbols I exported in the .DEF file. I used a tool to examine the exported symbols from the dll generated by both MSVC and MSYS/MinGW. The MSVC dll exports only the functions I specified. However, the MSYS/MinGW dll exports much more than my .DEF file specified, and the functions I do want exported have the name mangled according to the stdcall calling convention. This leads me to believe that the .DEF file is not being used when compiling using MSYS/MinGW. How can I have MSYS/MinGW use my .DEF file? Thanks, -- Nathan Paul
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