Contents of the "unix" sub-archive for UnZip 5.11 and later:

  Contents      this file
  Makefile      makefile for UnZip for various architectures and OS's
  unix.c        Unix-specific support routines
  unzip.1	UnZip manual page, nroff format
  unzipsfx.1	UnZipSFX manual page, nroff format
  zipinfo.1	ZipInfo manual page, nroff format
  funzip.1 	fUnZip manual page, nroff format

Type "make" or "make help" to get general compile instructions (beyond
those in the INSTALL file), or "make list" for a list of makefile targets.
Note that there are some MS-DOS and cross-compilation targets thrown in
just to make things more exciting.