(matplotlib) matplotlib$ python3.5 setup.py build============================================================================Edit setup.cfg to change the build optionsBUILDING MATPLOTLIB        matplotlib: yes [2.0.0b3+1919.g2dfef6a]            python: yes [3.5.1+ (default, Mar 30 2016, 22:46:26)  [GCC                    5.3.1 20160330]]          platform: yes [linux]REQUIRED DEPENDENCIES AND EXTENSIONS             numpy: yes [version 1.11.1]               six: yes [using six version 1.10.0]          dateutil: yes [using dateutil version 2.5.3]       functools32: yes [Not required]      subprocess32: yes [Not required]              pytz: yes [using pytz version 2016.6.1]            cycler: yes [using cycler version 0.10.0]           tornado: yes [tornado was not found. It is required for the                    WebAgg backend. pip/easy_install may attempt to                    install it after matplotlib.]         pyparsing: yes [using pyparsing version 2.1.5]            libagg: yes [pkg-config information for 'libagg' could not                    be found. Using local copy.]          freetype: yes [Using local version for testing]               png: yes [version 1.2.54]             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 / using unittest.mock]    toolkits_tests: yes [using nose version 1.3.7 / using unittest.mock]OPTIONAL BACKEND EXTENSIONS            macosx: no  [Mac OS-X only]            qt5agg: yes [installing, Qt: 5.7.0, PyQt: 5.7.0; PySide2 not                    found]            qt4agg: yes [installing, Qt: 5.5.1, PyQt: 5.5.1; PySide not                    found]           gtk3agg: no  [Requires pygobject to be installed.]         gtk3cairo: no  [Requires cairocffi or pycairo to be installed.]            gtkagg: no  [Requires pygtk]             tkagg: yes [installing; run-time loading from Python Tcl /                    Tk]             wxagg: no  [requires wxPython]               gtk: no  [Requires pygtk]               agg: yes [installing]             cairo: no  [cairocffi or pycairo not found]         windowing: no  [Microsoft Windows only]OPTIONAL LATEX DEPENDENCIES            dvipng: yes [version 1.15]       ghostscript: yes [version 9.18]             latex: yes [version 3.14159265]           pdftops: yes [version 0.41.0]OPTIONAL PACKAGE DATA              dlls: no  [skipping due to configuration]running buildrunning build_pycopying lib/matplotlib/mpl-data/matplotlibrc -> build/lib.linux-x86_64-3.5/matplotlib/mpl-dataUPDATING build/lib.linux-x86_64-3.5/matplotlib/_version.pyset build/lib.linux-x86_64-3.5/matplotlib/_version.py to '2.0.0b3+1919.g2dfef6a'running build_ext(matplotlib) matplotlib$ PYTHONPATH=build/lib.linux-x86_64-3.5/ python3.5 tests.py --nocapturePython byte-compilation optimization level: 0/home/herbert/Repositories/matplotlib/build/lib.linux-x86_64-3.5/matplotlib/__init__.py:1580: UserWarning: matplotlib is not built with the correct FreeType version to run tests.  Set local_freetype=True in setup.cfg and rebuild. Expect many image comparison failures below. Expected freetype version 2.6.1. Found freetype version 2.6.1. Freetype build type is not local  "" if ft2font.__freetype_build_type__ == 'local' else "not "