libgnuplot-iostream-dev 0~20130604.gitdd47c7a-1 (i386 binary) in ubuntu trusty

 This interface allows gnuplot to be controlled from C++ and is designed to be
 the lowest hanging fruit. In other words, if you know how gnuplot works it
 should only take 30 seconds to learn this library. Basically it is just an
 iostream pipe to gnuplot with some extra functions for pushing data arrays and
 getting mouse clicks. Data sources include STL containers (eg. vector or map)
 and one or two dimensional Blitz++ arrays (of scalars or TinyVectors). Support
 for other data sources should be easy to add.
 .
 Basically there are two functions defined: send() sends arrays of data values
 (it is overloaded to do the right thing based upon what type of variable you
 pass) and getMouse() gets the position of a mouse click. Everything else is
 accomplished by sending commands manually to gnuplot via the iostream
 interface.