From: Nuralanur@...
Date: 2005-06-13T01:29:41+09:00
Subject: Ruby-Gnuplot problem (using Cygwin)

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Hello,
 
I've just downloaded and installed rgnuplot
 
_http://rgnuplot.sourceforge.net/_ (http://rgnuplot.sourceforge.net/) 
 
and tried to run the first example under Cygwin, yet I get
an error message
 
./gplot/Gnuplot.rb:108 warning: Insecure world writable dir  
/c/texmf/miktex/bin,
mode 040777 
 
and the execution of the program stalls.
This appears twice, actually, as if the program had been started a second  
time.
Gnuplot.rb is a file from the package which is "required" in the first line  
opf my application
program, and  line 108 is the second-to-last
in the following listing: 
 
 class ProcessWriter < Writer
 
    attr_reader :cmd  # Gnuplot command
 
    # Create a 'GnuplotProcess' object. This starts a  gnuplot program and
# prepares to write commands to  it.
#
# persist - If set to true  then the gnuplot command will be run with the
#           'persist' command  line option. 
# 
def  initialize(persist = true)
IO.popen( "which  gnuplot" ) { |io| @cmd = io.readline.chomp }
@cmd += " -persist" if persist
l.108      @gnuplot  = IO::popen(@cmd, "w")
end
 
so this is pretty much at the very beginning of initialization.
What can I do to get past the warning and the stall?
Does anybody use Gnuplot on Ruby who has had similar problems?
 
Thank you very much!
 
Best regards,
 
Axel 

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