gnuplot c++ interface segfaulting

[Mojca M. <moj...@gm...>]

Hello,

someone working on windows has sent me some code which apparently
worked there, but is crashing/segfaulting on my mac.

I'm using Mac OS X Tiger 10.4, with gnuplot compiled from CVS
approximately 2 weeks ago (but the same problem happens with the
version provided by fink, which is 4.2 patchlevel 2). (It might have
something to do with readline perhaps?)

A minimal example includes downloading this code:
     http://cheminfo.informatics.indiana.edu/~rguha/code/cc++/gnuplot_i++.tgz
(from http://jijo.cjb.net/)
and unzipping, making it and running an example

> cd gnuplot_i++
/tmp/gnuplot_i++> make
g++ -c -ggdb -DDEBUGGA  example.cc
g++ -c -ggdb -DDEBUGGA  gnuplot_i.cc
g++ -o example -ggdb example.o gnuplot_i.o -lstdc++
/tmp/gnuplot_i++> ./example
*** example of gnuplot control through C++ ***

Segmentation fault

------

If I run gdb, then I get a problem in fputs reported:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x2f706dac
0x9002990c in fputs ()


Any idea about what could go wrong?

Thanks a lot,
    Mojca