--- /dev/null
+
+ The following information is mainly geared towards people who want
+to port gnuplot to new platforms not covered by the installation
+instructions in 0INSTALL and INSTALL.gnu. Please do also read the
+file CodeStyle.
+
+ We have tried to isolate most operating system dependent definitions
+in the file syscfg.h. If you add a new platform, some definitions must
+probably be added to syscfg.h as well.
+
+Preprocessor Defines
+********************
+
+ These #defines should be checked before compilation. There are many
+makefiles provided as templates. You probably need these only if porting
+to a new machine. The HAVE_XXX defines should be taken care of by configure
+if your platform supports GNU autoconf generated configure shell scripts.
+If your platform/environment does not support configure, see Codestyle and
+syscfg.h.
+
+THIS LIST IS SOMEWHAT OUT OF DATE NOW - CHECK configure.in and
+acconfig.h.
+
+define file note
+------ ---- --------
+HAVE_BCOPY Makefile define if you have bcopy() and no memcpy()
+HAVE_LGAMMA Makefile define if you've got lgamma(3)
+HAVE_GAMMA Makefile define if you've got gamma(3)
+PC Makefile define if compiling on a PClone
+MSDOS Makefile define if compiling under MSDOS;
+ automatically defined by Microsoft C 5.10
+DOS32 Makefile define for a 32-bit DOS extender (djgpp/emx)
+WIN32 Makefile define for a 32-bit MS-Windows version
+HELPFILE Makefile name including path of gnuplot.gih file.
+VERYLARGE plot.h define to be largest coordinate number.
+SHELL plot.h default shell to spawn if SHELL environment
+ variable not found at run-time
+NOCWDRC Makefile define to inhibit check of ./.gnuplot
+READLINE Makefile define if you want command-line editing
+HAVE_LIBREADLINE Makefile define if you are linking with GNU readline
+
+Header File Availability
+========================
+
+ It is generally assumed that standard ANSI/ISO header files are available.
+
+Function Availability
+=====================
+
+ It is generally assumed that standard ANSI/ISO functions are available.
+
+ If certain standard ANSI/ISO C functions are not available, two alternatives
+come to mind: either try to achieve the same functionality without the
+missing function, or provide a portable implementation. Examples for this
+are in stdfn.c. See also stdfn.h.
+
+ The following defines are used to ensure availability of certain
+non-standard functions.
+
+ #define function see file comments
+-------------------------------------------------------------------
+HAVE_ERF erf() specfun.c
+HAVE_GAMMA gamma() specfun.c
+HAVE_GETCWD getcwd() stdfn.h
+HAVE_GETWD getwd() stdfn.h
+HAVE_INDEX index() stdfn.h pre-ANSI version of strchr()
+HAVE_LGAMMA lgamma() specfun.c prefered over gamma()
+HAVE_ON_EXIT on_exit() term/x11.trm atexit() substitute on SunOS
+HAVE_RINDEX rindex() stdfn.h pre-ANSI version of strrchr()
+HAVE_SLEEP sleep() command.c
+HAVE_SYSINFO sysinfo() gplt_x11.c SysV function to get and set
+ system information. Used
+ instead of gethostname().
+HAVE_STRNCASECMP strncasecmp() stdfn.c non-case sensitive string
+ comparison
+HAVE_STRNICMP strnicmp() stdfn.c dto.
+HAVE_TCGETATTR tcgetattr() readline.c
+
+Terminal Selection Options
+==========================
+
+ These defines are used to include the drivers for various plotting
+terminals, printers, and protocols that a given version of gnuplot can
+access and the description of such for the help file.
+
+
+define file note
+------ ---- --------
+TERMFLAGS Various makefiles (obsolete under Unix; use configure instead)
+ the set of terminals you want, from below or
+ term.h
+SHORT_TERMLIST term.h edit term.h to specify desired devices at
+ the beginning (instead of commenting out,
+ throughout the file, devices not desired.)
+
+ALL_TERM_DOC docs/termdoc.c on-line help documentation for all devices
+ rather than only for the drivers selected
+ in term.h.
+
+
+ The following, non-authoritative, list serves as a guide to the range
+of devices that may be selected/deselected by editing term.h.
+
+ AED AED 512 and AED 767
+ AIFM Adobe Illustrator Format
+ AMIGA Amiga custom screen
+ APOLLO Apollo Graphics Primitive Resource (resizable window)
+ ATARI AES, VDI, MultoTOS
+ ATT6300 PC with AT&T 6300 graphics
+ BITGRAPH BBN BitGraph
+ CGI SCO CGI, hcgi
+ COREL COREL! Draw Format
+ CORONA PC with Corona graphics 325
+ DEBUG Voluminous output for debugging to terminal
+ DJSVGA MSDOS SVGA with DJGPP compiler
+ DXY800A Roland DXY800A plotter
+ DUMB Printer or glass dumb terminal
+ DXF AutoCad (Release 10.x) dxf file format
+ EEPIC EEPIC-extended LaTeX driver, for EEPIC users
+ EGALIB PC with EGA/VGA graphics.
+ EMTEX LaTeX picture environment with emTeX specials
+ EMXVGA PC with VGA running DOS or OS/2
+ EPS180 Epson-LQ style 24-pin 180-dot per inch printers
+ EPS60 Epson-style 60-dot per inch printers
+ EPSONP Epson LX-800, Star NL-10, NX-1000 and lots of others
+ EXCL Talaris EXCL laser printer format
+ FIG Fig graphics language (requires object.h from TransFig)
+ GIF Gif output, requires special library
+ GPIC Gpic for groff
+ GPR Apollo Graphics Primitive Resource (fixed-size window)
+ HERCULES IBM PC/Clone with Hercules graphics board
+ HP2648 HP2648, HP2647
+ HP26 HP2623A and maybe others
+ HP500C HP Deskjet 500 C and maybe other Color Deskjets
+ HP75 HP7580, and probably other HPs
+ HPGL HP7475 and (hopefully) lots of others
+ HPLJII HP Laserjet II
+ HPPJ HP PaintJet
+ IMAGEN Imagen laser printers (300dpi) (requires -Iterm also)
+ IRIS IRIS4D series computer
+ KERMIT MS-DOS Kermit Tektronix 4010 emulator
+ LATEX LaTeX picture environment
+ LINUXVGA Linux PC with (s)vgalib
+ MF Metafont Format
+ MGR MGR window manager
+ MIF FrameMaker MIF 3.00 Format
+ MTOS Atari MiNT/MULTITOS/Magic Terminal
+ NEC NEC CP6 pinwriter printer
+ NEXT NeXTStep Window System (only grey scale)
+ OS2PM OS/2 Presentation Manager
+ PBM PBMPLUS pbm, pgm, ppm formats
+ PCL HP PCL5 (actually HPGL/2)
+ PNG Portable Network Graphics, requires separate library
+ POSTSCRIPT PostScript
+ PRESCRIBE Kyocera Laser printer
+ PSLATEX Postscript graphics, LaTeX labels and titles
+ PSTRICKS PSTRICKS 0.91 format
+ QMS QMS/QUIC laserprinter (Talaris 1200 and others)
+ REGIS ReGis graphics (vt125, vt220, vt240, Gigis...)
+ RGIP Redwood Graphics Interface Protocol
+ SELANAR Selanar
+ STARC Star Color Printer
+ SUN Sun Microsystems Workstation
+ T410X Tektronix 4106, 4107, 4109 and 420x terminals
+ TABLE Text output
+ TANDY60 Tandy DMP-130 series 60-dot per inch graphics
+ TEK Tektronix 4010, and probably others
+ TEXDRAW TeXDraw format (for LaTeX)
+ TGIF TGIF X11 Drawing Tool
+ TPIC Tpic specials for TeX
+ UNIXPC unixpc (ATT 3b1 or ATT 7300)
+ UNIXPLOT unixplot
+ V384 Vectrix 384 and tandy color printer
+ VTTEK VT like Tektronix 4010 emulator
+ VWS VAX Windowing System (UIS libraries)
+ X11 X11R4 window system
+
+
+Platform Related Defines
+========================
+
+ These #defines are defined automatically by various compilers or
+makefiles, some gnuplot routines check these defines to implement
+features found in the various environments. This list is certainly
+incomplete.
+
+define note
+------ --------
+AMIGA_AC_5 defined for Manx Aztec C 5.2a on the Amiga.
+AMIGA_SC_6_1 defined for SAS/C 6.1 or later versions on the Amiga.
+__amigaos__ defined by gcc on AmigaOS.
+AMIGA defined for all Amiga compilers.
+apollo defined by Apollo's C compilers.
+_CRAY defined by CRAY's C compiler.
+__DECC defined by DEC C compiler under VMS (?)
+__TURBOC__ defined automatically by Borland C++ 3.x.
+unix defined by most unix C compilers.
+vms (and VMS) defined by VMS C compilers.
+__ZTC__ Zortech C compiler under MSDOS.
+_Windows defined by Borland C++ 3.0 compiling for MS-Windows.
+__WATCOMC__ defined automatically by Watcom C
+__EMX__ defined by EMX gcc (available on DOS & OS/2).
+OS2 to be defined by compilers under OS/2.
+
+Defines Used in Gnuplot
+=======================
+
+ The following defines are used to achieve better portability. Most of
+them are wrappers.
+
+ #define wraps/redefines see file comments
+------------------------------------------------------------------
+GP_GETCWD getwd()/getcwd() alikes stdfn.h
+GP_FARMALLOC faralloc()/malloc() alloc.c Windows environment
+GP_FARREALLOC farrealloc()/realloc() alloc.c Windows environment
+GP_SLEEP sleep() command.c
+GP_SYSTEMINFO sysinfo()/gethostname() gplt_x11.c
+GPFAR `far' compiler directive plot.h MSDOS and Win16
+GPHUGE `huge' compiler directive plot.h MSDOS and Win16
+GP_INLINE `__inline' directive plot.h
+GPMAX max (a,b) plot.h
+GPMIN min (a,b) plot.h
+
+ The following symbols are defined when using DEBUG:
+
+DEBUG_WHERE prints filename and line number to stderr *without* linefeed
+FPRINTF(a) uses DEBUG_WHERE, passes a to fprintf
+
+ Usage example: FPRINTF((stderr, "function foo returned %d\n", bar));
+ Result: readline.c:620 function foo returned -1
+