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c++ice

C++ Link external libraries

i just started with c++ programming. For my new work, i have to download, install and take use of an external library. It is called ICE. It was composed as a .tar file, so i decomposed it inside my home-directory "/home/foo/ice". Now, there is the directory: "/home/foo/ice/src", within all the .h headers, i need for the program. But can i tell the compiler, where he can find all these new headers? I mean only with #include, he obviously doesn't know.

What i need:

#include <image.h>

"image.h" is inside "/home/foo/ice/src"

Greetings

Solution

  • If you have gcc compiler you can use -I option.

    From the manual :

    -I dir: Add the directory dir to the list of directories to be searched for header files.

    So for you it should be something like this:

    g++ myprog.cpp -I /home/foo/ice/src -o myprog

    But it is better to install the library, you should have some readme.txt or INSTALL file about how to do this..