This subdirectory contains some additional files which are necessary (or at least useful) when compiling Perl on MiNT. "Makefile" and "pwd.c" will build and install a fixed version of the pwd command if your system pwd is broken. The header files are wrappers around broken system header files. Make sure that this directory stands at first place in your include path when compiling Perl. The file system.c is an enhanced version of the system() function in the MiNTLib. It is strongly recommended that you insert this version into your libc before you compile Perl (see README.MiNT in the toplevel directory for details).