A Minix header file contains symbolic names (preprocessor define macros) for the system call integers.

        /usr/src/include/minix/callnr.h
     

Note this header file as well as .c and .s files needed to build the Minix components are in the /usr/src subdirectories.

The system can be cleanly rebuilt (recompiled).

The recompiled versions can then be installed; that is, the header files from the /usr/src subdirectories are copied into their standard places, e.g. in /usr/include and its subdirectories.

As root, in the /usr/src/tools directory, type this command:

      make clean install