C++ can make use of native C libraries and header files. (As long as there is no incompatible stuff in the C implementation that will not compile as valid C++, there are only a few of these exceptions).

Example files

A normal #include "c_header.h" will not work, however. Instead use the extern keyword like so:

Then compile as follows:

g++ -c my_c_source.c my_main.cpp -o myExec.out

(remember to have the sources in the right order and before the executable!)