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GNUPLOT has been tested on a Pyramid 90x (ucb 4.2 and att V), a VAX 8200 (VMS 4.3), IBM PC's and AT's (MS-DOS 3.1, Microsoft C 4.0). The code is written with portability in mind, and it passes lint! If you have problems, send mail to vu-vlsi!plot. And please send any modifications you make so they can be #ifdef'd into later releases. These #defines should be checked before compilation: VFORK Makefile define if you've got vfork() system call vms Makefile define if compiling under VMS; automatically defined by DEC C PC Makefile define if compiling on a PClone MSDOS Makefile define if compiling under MSDOS; automatically defined by Microsoft C 4.0 AED Makefile define these if you want this terminal driver HP75 . included QMS . REGIS . TEK . UNIXPLOT . CGA . same, but only if PC is defined CORONA . EGA . HUGE plot.h define to be largest double if not defined in <math.h> HELP plot.h program run by 'help' command SHELL plot.h default shell to spawn if SHELL environment variable not found at run-time To compile: under UNIX: type 'make' under VMS: type '@compile', then '@link'. Use the 'vmshelp.csh' script to convert the help files. If you don't have access to a Unix machine, send us mail and we'll send you the VMS GNUPLOT.HLB. under MSDOS: use 'make make.msc' for Microsoft C 4.0. If you've got another compiler, you're on your own!