[Cmake] How to use g++ link C file and c++ libraries?

[William A. Hoffman]

If you want to have cmake use the c++ compiler to link,
you can add a dummy c++ file to your target.   As long as there
is at least one c++ file in the target, the c++ compiler will
be used for linking.   

However, for maximum portability, I think that main should
be compiled by a c++ compiler for a c++ program to initialize
all of its variables correctly.

You could do something like this:

extern "C" cmain(int ac, char** av);
int main(int ac, char** av)
{
return cmain(ac, av);
}

-Bill


At 02:28 PM 9/18/2003, Feng Ma wrote:
>Hi,
>
> I have a C function calling C++ libraries.  CMake generate Makefile which use gcc to compile C file and link. Because some libraries are c++, so it will generate a lot of errros.
>
> I manually modified the generated Makefile to use g++ to do linking and it worked. Next time I did make, the Makefile was automatically changed to use gcc again. It will be great if
>we can set it somewhere in CMake to tell CMake that this is a project with
>mixture of c and c++ and should do linking using g++.
>
> Any ideas? Thanks a lot.
>
>-Feng
>
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