Re: C++ in gnuplot

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

On 9 December 2015 at 16:23, Hans-Bernhard Bröker wrote:
> Am 09.12.2015 um 11:41 schrieb Mojca Miklavec:
>
>> What other libraries for gnuplot (other than Qt and wxWidgets) need C++?
>
>
> Basically none.
>
>> I'm facing some problems when trying to support gnuplot built against
>> Qt 5 on OS X < 10.9.
>
>
> That bodes trouble.  I've seen various levels of incompatibility between
> clang and Qt5 for a while now (on Windows+Cygwin).
>
>>                                  if (isnan(*image))
>>                                      ^~~~~
>>                                      std::isnan
>>
>> which I can fix by changing isnan to std::isnan,
>
>
> That one would be a simple enough fix.  But there are more problems waiting
> to be found, including lots of unresolved reference into QString.

For me the rest worked out of the box.

>> but the program crashes anyway (on exit at least) if I don't compile
>> it against libc++ (rather than libstdc++).
>
> Huh, don't remember having seen that name.  What package does that library
> originate in?

It's not from a package. It's a standard library that any C++ compiler
links against.

Mac OS X ships with both libstdc++ and libc++. Only libc++ supports
C++11, but libstdc++ was the default before version 10.9.

Mojca