C-library not linking using gcc/g++

Question

I have a c-library which I use in gcc. The library has the extension .lib but is always linked as a static library. If i write a program which uses the library as c-code, ev

Answer 1

Does your header file have the usual

#ifdef __cplusplus
extern "C" {
#endif

// ...

#ifdef __cplusplus
} /* extern "C" */
#endif

to give the library functions C linkage explicitly.

.cpp files are compiled with C++ linkage i.e. name mangling by default.