Log Message:
Update to gnuplot 4.2.5.

pkgsrc changes: use NetBSD libedit where possible.

New features, changes and fixes in gnuplot version 4.2.5
===========================================================
* NEW ./configure --with-readline=bsd to use libedit rather than libreadline
* NEW command line option -e "command list"
* NEW 'set xtics rangelimit' allows creation of range/frame plots
* NEW "set view equal_axes xy{z}" does for 3D what "set size \ 
square" does for 2D.
* CHANGE updated svg terminal driver (back-ported from 4.3 CVS branch)
* CHANGE fillstyle empty really is consistently empty (not fill-with-background)
* CHANGE warn that some options to 'set datafile binary' are not implemented
* CHANGE handling of custom palette when postscript mode is set to \ 
"monochrome"
* CHANGE allow Z axis label in 3D plots to be rotated
* CHANGE do not save or restore axis tick labels that were read from a data file
* FIX interpolatation for pm3d surfaces given by both z and colour coordinates
* FIX infinite loop if axis tick increment is on the order of machine precision
* FIX initialize x11 enhanced text mode to use most recently requested font
* FIX emf handling of enhanced text at non-zero angle
* FIX 3D plots with fixed zrange were clipping against xmax rather than zmax
* FIX handling of uninitialized variables in fit "via" command
* FIX pm3d depthorder was ignoring interpolation setting
* FIX assignment of fill patterns to boxes in columnstacked histograms
* FIX Reserve room for user tic labels even if the format for autoticks is \ 
""
* FIX bug in 4.2.4 that gave twice the requested left/right margin width

New features, changes and fixes in gnuplot version 4.2.4
===========================================================
* NEW add support for enhanced text mode in the emf terminal driver
* NEW builtin functions 'strftime' and 'strptime'
* NEW set absolute plot margins in screen coordinates
* NEW "nocontours" keyword for splot
* NEW "undefine foo" clears previously defined user variable foo
* NEW allow contouring of pm3d surfaces
* NEW allow color by z value ("palette z") in 2D plots
* NEW "pause mouse close" waits until the plot window is closed
* FIX The documentation says that "set size ratio" is ignored in 3D. \ 
Make it so.
* FIX Do not re-quantize time tics interval explicitly set by user
* FIX (gd post) don't segfault on very long font names
* FIX allow variable color from input file for "with boxes", \ 
"with vectors"
* FIX don't run off the end of "set format" commands
* FIX Fix discontinuity in piecewise approximation of inverse error function
* FIX discard out of range vectors in the bitmap terminals (pbm, epson, etc)
* FIX 2nd colour in the colour box for negative palette in postscript
* FIX insure palette is initialized before any objects are drawn
* FIX wxt terminal was not obeying "set palette maxcolors"
* FIX Histograms did not correctly honor 'set style user increment'
* FIX Avoid segfault if tic labels are requested from a non-existent data column
* FIX emf terminal - allow fractional linewidth (fixes 0-length dash problem)
* FIX post terminal - fix parsing error for palfuncparam
* FIX post terminal - escape {} chars in enhanced text mode
* FIX clip "splot with labels" against plot boundaries in 2D mode
* CHANGE try harder to autotitle columns in using specs with expressions
* CHANGE gd.trm: use dynamically-allocated TTF font names
* CHANGE x11: more finely sampled color palette for PM3D
* CHANGE cgm: switch to using web_color_rgbs; approximate RGB colors
* CHANGE fig: more point types, 4.2-style font and size syntax for "set \ 
term"
* CHANGE emf: separate dashlength option (don't use linewidth for dashlength)
* CHANGE stacked histograms grow upward for values > 0, downward for values < 0
* CHANGE 'pause mouse button1' (or button2) does not disable zooming
* CHANGE built-in readline tries to recognize <home> and <end> keys