Question

How do you link 2 c library files, to a c++ file?

Right now I am doing this:

> gcc -c file1.c (this works fine) 

> gcc -c file2.c ( this works fine)

> g++ -c myc++file.cpp (this works fine)

> g++ -o program myc++file.o file1.o file2.o

-> I get an error on this last one saying that their is a undefined reference to a function in myc++file.o, but that function is defined in file2.o. Something is wrong, but I just cant figure it out.

Any ideas?

Answer 1

Is this function static?

Did you use extern "C" in myc++file.cpp?

if the answers is no and yes, show us some code.

(By the way, try to check using nm if that function is really in file2.o)