[Plplot-general] plstream instantiation [C++]

[Xavier C. <car...@gm...>]

Following this document :
https://www.absoft.com/wp-content/uploads/2015/08/plplot-5.3.1.pdf

The C++ programmer can write: plstream p( ... ); p.env( ... ); p.line( ...
> );


I have "started" to port my Python program to C++, and trying to
instantiate plstream and, as example, call start() and give it some
parameters:

const char *x = "xwin";

PLINT once = 1;

PLINT twice = 1;

cout << x << endl;

plstream p;

p.start(x, once, twice);

But I get this at compile:

[build] CMakeFiles/autoplot++.dir/main.cpp.o: In function `main':
[build] /home/xavier/autoplot_plus/main.cpp:521: undefined reference to
`plstream::plstream()'
[build] /home/xavier/autoplot_plus/main.cpp:521: undefined reference to
`plstream::~plstream()'
[build] collect2: error: ld returned 1 exit status
[build] make[2]: *** [autoplot++] Error 1
[build] make[1]: *** [CMakeFiles/autoplot++.dir/all] Error 2
[build] make: *** [all] Error 2

I'm not sure what's missing here, I'd appreciate if you guys can give me a
hint

Thanks

Xavier