1.2.15 $LIBRARYPATH : Specify library path.

This option serves to specify the library path, where the linker looks for static or dynamic libraries. f$LIBRARYPATH XXXg will add XXX to the library path. XXX can contain one or more paths, separated by semi-colons or colons.

For example:

will add the directories /usr/X11/lib and /usr/local/lib to the linker library path. The linker will look for the library libX11.so in both these directories, and use the rst found le. This directive is equivalent to the -Fl command-line switch.

Caution is in order when using this directive: If you distribute les, the places of the libraries may not be the same as on your machine; moreover, the directory structure may be dierent. In general it would be fair to say that you should avoid using this directive. If you are not sure, it is better practice to use makeles and makele variables.