7.1.1 Requirements

The Foreign Parser requires a C preprocessor, so you must have a suitable preprocessor installed on your machine.

By default LispWorks invokes cl.exe (VC++) on Windows and cc on other platforms. If you have this installed, then make sure it is on your PATH.

On Windows, if you don't have cl.exe , download the VC++ toolkit from Microsoft

Preprocessors known to work with LispWorks are:

To use a preprocessor other than the default, set the variable foreign-parser:*preprocessor* , for example:

(setf foreign-parser:*preprocessor* "gcc")
LispWorks Foreign Language Interface User Guide and Reference Manual - 13 Sep 2005