BUILDING MATPLOTLIB
            matplotlib: yes [1.5.0]
                python: yes [2.7.11 (default, Dec  7 2015, 19:37:00)  [GCC
                        4.9.3]]
              platform: yes [linux2]

REQUIRED DEPENDENCIES AND EXTENSIONS
                 numpy: yes [version 1.10.1]
              dateutil: yes [using dateutil version 2.4.2]
                  pytz: yes [using pytz version 2015.7]
                cycler: yes [using cycler version 0.9.0]
               tornado: yes [using tornado version 4.3]
             pyparsing: yes [using pyparsing version 2.0.6]
                libagg: yes [pkg-config information for 'libagg' could not
                        be found. Using local copy.]
              freetype: yes [version 2.6.2]
                   png: yes [version 1.6.20]
                 qhull: yes [pkg-config information for 'qhull' could not be
                        found. Using local copy.]

OPTIONAL SUBPACKAGES
           sample_data: yes [installing]
              toolkits: yes [installing]
                 tests: yes [using nose version 1.3.7 / mock is required to
                        run the matplotlib test suite. "setup.py test" will
                        automatically download it. Install mock to run
                        matplotlib.test()]
        toolkits_tests: yes [using nose version 1.3.7 / mock is required to
                        run the matplotlib test suite. "setup.py test" will
                        automatically download it. Install mock to run
                        matplotlib.test()]

OPTIONAL BACKEND EXTENSIONS
                macosx: no  [Mac OS-X only]
                qt5agg: no  [skipping due to configuration]
                qt4agg: no  [skipping due to configuration]
               gtk3agg: yes [installing, version 3.5.18]
             gtk3cairo: yes [installing, version 3.5.18]
                gtkagg: no  [skipping due to configuration]
                 tkagg: no  [skipping due to configuration]
                 wxagg: no  [skipping due to configuration]
                   gtk: no  [skipping due to configuration]
                   agg: yes [installing]
                 cairo: yes [installing, cairocffi version 1.10.0]
             windowing: no  [Microsoft Windows only]

OPTIONAL LATEX DEPENDENCIES
                dvipng: yes [version 1.15]
           ghostscript: yes [version 9.15]
                 latex: yes [version 3.14159265]
               pdftops: yes [version 0.38.0]

OPTIONAL PACKAGE DATA
                  dlls: no  [skipping due to configuration]