C++ in gnuplot

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

Hi,

What other libraries for gnuplot (other than Qt and wxWidgets) need C++?

I'm facing some problems when trying to support gnuplot built against
Qt 5 on OS X < 10.9.

It starts with:

In file included from qtterminal/qt_term.cpp:78:
qtterminal/qt_conversion.cpp:129:9: error: use of undeclared
identifier 'isnan'; did you mean 'std::isnan'?
                                if (isnan(*image))
                                    ^~~~~
                                    std::isnan

which I can fix by changing isnan to std::isnan, but the program
crashes anyway (on exit at least) if I don't compile it against libc++
(rather than libstdc++). I would like to know which other C++
libraries I would have to compile against libc++ if I want to compile
gnuplot against libc++.

Mojca