how to include headers from other software

[12345671]

My env: Radhat9 with gcc and gcc++. I did a mycode.c program, it has

#include <studio.h>
#include <comedilib.h>

The second one is not build-in gcc, it is from another software for my program. When I run,

gcc mycode.c

Of course I got error undefined reference. Can anyone tell me how to include it. THanks!!!!

 

[Salem]

You need to specify a few things

1. The path(s) to where your extra header files are stored
2. The path(s) to where your extra libraries are stored
3. The name(s) of your additional libraries.

Eg.

gcc -I/path/to/headers -L/path/to/libs mycode.c -lextra

The way libraries are specified is a little odd when you first see it.
Given [tt]-lextra[/tt], the actual filename will be [tt]libextra.a[/tt]

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