The file gish.tar.Z is an L-Z compressed UNIX tar archive that contains all of the files splayed beneath the "explode" subdirectory. FTP this file to your local machine in binary mode, uncompress it, then untar it. The gish.tar file is the same file, just not compressed. VMS compress and tar utilities are posted on this machine beneath the /toolbox/vms_util directory. This code is used to build a personal function library, libgish.a, which is in turn used to make the libdfa.a library and the BLAST application programs. Edit the Makefile as necessary. The sys directory contains source code that tends to be highly platform- dependent. On UNIX systems, the sys directory is a "soft link" to the sys.unix directory. The VMS code tidbits have not been tested--caveat emptor. Warren Gish gish@ncbi.nlm.nih.gov (301) 496-2475 September 15, 1991 Modification history: March 29, 1992 Added "suffix" parameter to misc/basename(). March 31, 1992 Added misc/wrap.c