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Description
Bug report
Bug summary
When cross-compiling matplotlib and dependencies (numpy, six, pytz, etc) for OpenWRT in Ubuntu 16.04LTS, all code properly compiles. However, when testing matplotlib on the target, when importing matplotlib.pyplot I get the failure "terminate called after throwing an instance of 'char const*'". Specifically, after a font is imported in font_manager, the failure comes up when attempting to add a second font (regardless of the first font). I've attempted multiple versions of Python3 (3.6.2, 3.6.0, 3.5.4), as well as numerous combinations of dependent packages. Not that I am only compiling freetype as a library for the shared object "libfreetype.so.6*", as well as the ft2font header file, instead of the full freetype package.
Code for reproduction
importmatplotlibprint(matplotlib.__version__)importmatplotlib.pyplotaspltprint("Success!")
Actual outcome
root@LEDE:~# python3 test.py --verbose-debug$HOME=/rootmatplotlib data path /usr/lib/python3.6/site-packages/matplotlib/mpl-data*****************************************************************You have the following UNSUPPORTED LaTeX preamble customizations:Please do not ask for support with these customizations active.*****************************************************************loaded rc file /usr/lib/python3.6/site-packages/matplotlib/mpl-data/matplotlibrcmatplotlib version 2.0.2verbose.level debuginteractive is Falseplatform is linuxloaded modules: <dict_keyiterator object at 0x17ebb00>CACHEDIR=/root/.cache/matplotlibfont search path ['/usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf', '/usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/afm', '/usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/pdfcorefonts']trying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmb10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmr10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizOneSymReg.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizThreeSymBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSansMono.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSansMono-Oblique.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSerif-Bold.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXGeneral.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSerifDisplay.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXNonUniBolIta.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmex10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmmi10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmss10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizTwoSymBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmsy10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmtt10.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXNonUni.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSans-BoldOblique.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXGeneralItalic.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXGeneralBolIta.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSans-Bold.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSans.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizFiveSymReg.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSans-Oblique.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXGeneralBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizThreeSymReg.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSerif.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizFourSymBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizFourSymReg.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXNonUniBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXNonUniIta.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSerif-BoldItalic.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSansDisplay.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSansMono-Bold.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizTwoSymReg.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/STIXSizOneSymBol.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSansMono-BoldOblique.ttftrying fontname /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/DejaVuSerif-Italic.ttfcreateFontDict: /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmb10.ttfcreateFontDict: /usr/lib/python3.6/site-packages/matplotlib/mpl-data/fonts/ttf/cmr10.ttfterminate called after throwing an instance of 'char const*'AbortedExpected outcome
root@LEDE:~# python3 test.py 2.0.2Success!Matplotlib version
- Operating System: OpenWRT / LEDE V17.01.02
- Matplotlib Version: 2.0.2
- Python Version: 3.6.2
- Other Libraries:
- numpy: 1.12.1
- six: 1.10.0
- dateutil: 2.6.1
- pytz: 2017.2
- cycler: 0.10.0
- pyparsing: 2.2.0
- libfreetype: 2.5.5
- libpng: 1.2.57
BUILDING MATPLOTLIB matplotlib: yes [2.0.2] python: yes [3.6.2 (default, Jun 8 2017, 21:02:37) [GCC 5.4.0 20160609]] platform: yes [linux]REQUIRED DEPENDENCIES AND EXTENSIONS numpy: yes [version 1.12.1] six: yes [using six version 1.10.0] dateutil: yes [using dateutil version 2.6.1] functools32: yes [Not required] subprocess32: yes [Not required] pytz: yes [using pytz version 2017.2] 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 2.2.0] libagg: yes [pkg-config information for 'libagg' could not be found. Using local copy.] freetype: yes [version 2.5.5] png: yes [version 1.2.57] qhull: yes [pkg-config information for 'qhull' could not be found. Using local copy.]