1.3.15 $LIBPREFIX : Specify library filename prefix.

The LIBPREFIX directive has a similar function as the {$EXTENSION } and {$LIBSUFFIX } compiler directives: It sets the prefix of the library. This is by default ’lib’ on unices, and empty on windows. The name is simply prepended to the filename.

Example:

library tl;
{$LIBPREFIX 'library'}

begin
end.

will result in a filename librarytl.so on linux, or librarytl.dll on windows.