This directory contains miscellaneous tools written in the spp language. While not really system routines or mathematical library routines, these library routines are nonetheless sufficiently general purpose to justify making them publically available. Reference library "libxtools.a" (-lxtools on the xc command line) to access these routines. IRAF Group members are encouraged to add to the tools. To install a new tool: (1) copy the .x source into the directory or subdirectory, (2) Enter the name of each file followed by any dependency files into the mkpkg file, and (3) enter the UNIX command "mkpkg". This will compile the new modules and add them to the "libxtools.a" library.