can't build matplotlib on smartos system(open solaris)

[FrankYu]

I am trying build matplotlib on smartos(like open solaris) system. but failed with error. I am build the latest matplotlib. steps as below:

git describe

v2.0.0b1-1699-g4b3350d

python setup.py install

Edit setup.cfg to change the build options

BUILDING MATPLOTLIB

        matplotlib: yes [2.0.0b1+1699.g4b3350d]

            python: yes [2.7.11 (default, Jan 11 2016, 23:16:55)  [GCC

                    4.9.3]]

          platform: yes [sunos5]

REQUIRED DEPENDENCIES AND EXTENSIONS

             numpy: yes [version 1.11.0]

               six: yes [The installed version of six is 1.9.0 but a the

                    minimum required version is 1.10. pip/easy install

                    will attempt to install a newer version.]

          dateutil: yes [using dateutil version 2.4.0]

       functools32: yes [using functools32]

              pytz: yes [using pytz version 2014.10]

            cycler: yes [using cycler version 0.10.0]

           tornado: yes [using tornado version 4.3]

         pyparsing: yes [using pyparsing version 2.0.2]

            libagg: yes [pkg-config information for 'libagg' could not

                    be found. Using local copy.]

          freetype: yes [version 2.5.5]

               png: yes [version 1.6.17]

             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. Please install it

                    with pip or your preferred tool to run the test

                    suite]

    toolkits_tests: yes [using nose version 1.3.7 / mock is required to

                    run the matplotlib test suite. Please install it

                    with pip or your preferred tool to run the test

                    suite]

OPTIONAL BACKEND EXTENSIONS

            macosx: no  [Mac OS-X only]

            qt5agg: no  [PySide2 not found; PyQt5 not found]

            qt4agg: no  [PySide not found; PyQt4 not found]

           gtk3agg: no  [Requires pygobject to be installed.]

         gtk3cairo: no  [Requires pygobject 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: yes [installing, pycairo version 1.10.0]

         windowing: no  [Microsoft Windows only]

OPTIONAL LATEX DEPENDENCIES

            dvipng: no

       ghostscript: no

             latex: no

           pdftops: no

OPTIONAL PACKAGE DATA

              dlls: no  [skipping due to configuration]

running install

running bdist_egg

running egg_info

creating lib/matplotlib.egg-info

writing requirements to lib/matplotlib.egg-info/requires.txt

writing lib/matplotlib.egg-info/PKG-INFO

writing namespace_packages to lib/matplotlib.egg-info/namespace_packages.txt

writing top-level names to lib/matplotlib.egg-info/top_level.txt

writing dependency_links to lib/matplotlib.egg-info/dependency_links.txt

writing manifest file 'lib/matplotlib.egg-info/SOURCES.txt'

reading manifest file 'lib/matplotlib.egg-info/SOURCES.txt'

reading manifest template 'MANIFEST.in'

writing manifest file 'lib/matplotlib.egg-info/SOURCES.txt'

installing library code to build/bdist.solaris-2.11-i86pc.64bit/egg

running install_lib

running build_py

creating build

creating build/lib.solaris-2.11-i86pc.64bit-2.7

copying lib/pylab.py -> build/lib.solaris-2.11-i86pc.64bit-2.7

creating build/lib.solaris-2.11-i86pc.64bit-2.7/matplotlib

copying lib/matplotlib/_version.py -> build/lib.solaris-2.11-i86pc.64bit-2.7/matplotlib

​............

​running build_ext
building 'matplotlib.ft2font' extension

creating build/temp.solaris-2.11-i86pc.64bit-2.7

creating build/temp.solaris-2.11-i86pc.64bit-2.7/src

gcc -fno-strict-aliasing -O2 -pipe -O2 -gdwarf-2 -DHAVE_DB_185_H -pthread -I/usr/include -I/opt/local/include -I/opt/local/include/db4 -I/opt/local/include/ncurses -DNDEBUG -O2 -pipe -O2 -gdwarf-2 -DHAVE_DB_185_H -pthread -I/usr/include -I/opt/local/include -I/opt/local/include/db4 -I/opt/local/include/ncurses -fPIC -DFREETYPE_BUILD_TYPE=system -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib_ft2font_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -I/opt/local/lib/python2.7/site-packages/numpy/core/include -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include/freetype2 -I/usr/local/include -I. -I/opt/local/include/python2.7 -c src/ft2font.cpp -o build/temp.solaris-2.11-i86pc.64bit-2.7/src/ft2font.o

gcc -fno-strict-aliasing -O2 -pipe -O2 -gdwarf-2 -DHAVE_DB_185_H -pthread -I/usr/include -I/opt/local/include -I/opt/local/include/db4 -I/opt/local/include/ncurses -DNDEBUG -O2 -pipe -O2 -gdwarf-2 -DHAVE_DB_185_H -pthread -I/usr/include -I/opt/local/include -I/opt/local/include/db4 -I/opt/local/include/ncurses -fPIC -DFREETYPE_BUILD_TYPE=system -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib_ft2font_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -I/opt/local/lib/python2.7/site-packages/numpy/core/include -I/opt/local/include/libpng16 -I/opt/local/include -I/opt/local/include/freetype2 -I/usr/local/include -I. -I/opt/local/include/python2.7 -c src/ft2font_wrapper.cpp -o build/temp.solaris-2.11-i86pc.64bit-2.7/src/ft2font_wrapper.o

In file included from /opt/local/include/python2.7/Python.h:44:0,

             from src/mplutils.h:21,

             from src/ft2font_wrapper.cpp:1:

/usr/include/unistd.h:521:75: error: declaration of C function 'void swab(const void_, void_, ssize_t)' conflicts with

In file included from /opt/local/include/python2.7/Python.h:42:0,

             from src/mplutils.h:21,

             from src/ft2font_wrapper.cpp:1:

/usr/include/stdlib.h:170:13: error: previous declaration 'void swab(const char_, char_, ssize_t)' here

error: command 'gcc' failed with exit status 1