How to compile more than one .cpp file?

Question

Hi Folks!
I'm really need help. Stuck with the simple thing: I need to compile more than one source code file into .SWC.
It's fine with a single file typing:
g++ source1.cpp -swc -o mylib.swc
when I try to use
g++ source1.cpp source2.cpp -swc -o mylib.swc
source1.cpp is ignored, and source2.cpp is used.
As result I'm getting error in SWF:
Undefined sym: _main
    at cmodule.mylib::CLibInit/init()
    at test_fla::MainTimeline/frame1()
Because source1.cpp skipped.

Answer 1

I digged it.
Just created makefile with lines
all:
    g++ -c source1.cpp -o source1.o
    g++ -c source2.cpp -o source2.o
    g++ -swc -o mylib.swc source1.o source2.o;
and run make.
in docs I found that I can pass more than one .cpp file, but it won't work for Alchemy. However, if we compile .cpp one by one into .o files we can then link them together.