How to compile a source with "extern"

[Eljay Love-Jensen]

Hi Marcelo,

Welcome to the wonderful world of the C programming language.  This forum 
is for GCC specific issues, and your questions are more related to learning 
C than they are GCC in particular -- there are much better forums and 
websites devoted to C tutorials and getting started.

teste2.c should not have a main function in it, since that function is in 
teste1.c source file.

Compile your source files:
gcc -o myapp teste1.c teste2.c

Run your program:
./myapp

Enjoy,
--Eljay