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

The C++ compiler performs what is known as name-mangling - the names that appear in your code are not the same ones as your linker sees. The normal way round this is to tell the compiler that certain functions need C linkage:

// myfile.cpp
extern "C" int libfun();    // C function in your library

or do it for a whole header file:

// myfile.cpp
extern "C" {
  #include "mylibdefs.h"      // defs for your C library functions
}