[Plplot-general] png plots

[M. F. <mfr...@vi...>]

I am trying to use the plplot package add dynamic plots of ballistic
data on a webpage. To do this I need to write plots to png files from a
:"C" cgi program. I have done this using the gd library. Now I wanted to
add axis tick marks and the like using the plplot lib. I started by
modifing the x01c.c program by adding

/* Initialize plplot */
    plsdev("png");
   plsfnam("tst.png");
    plinit();

When I run it it returned the following error

[root@search plplot-5.0.3]# tmp/x01c | more
Plplot library version: 5.0.3
Requested device png not available

I ran configure as
sh configure --enable-png 
to make sure prior to make.
What else do I need to do to plot to png files. Also is it possible to
send the png output to stdout rather than a file?

Thanks.

Martin