or perhaps this rather means that Sage's freetype package was not (properly) installed. Do you have SAGE_ROOT/local/include/freetype2/ft2build.h ?
On Tuesday, June 20, 2017 at 2:48:59 PM UTC+1, Dima Pasechnik wrote: > > try > > apt-get install libfreetype6-dev > > > On Tuesday, June 20, 2017 at 1:20:34 PM UTC+1, Thierry Coulbois wrote: >> >> Here is what I get >> >> 17N68:~> cd >> '/home/coulbois/programmes/sage/cmi-sage/local/var/tmp/sage/build/matplotlib-1.5.1.p0/src' >> >> && '/home/coulbois/programmes/sage/cmi-sage/sage' --python setup.py --name >> >> ============================================================================ >> Edit setup.cfg to change the build options >> >> BUILDING MATPLOTLIB >> matplotlib: yes [1.5.1] >> python: yes [2.7.13 (default, Jun 15 2017, 16:43:35) [GCC >> 5.4.0]] >> platform: yes [linux2] >> >> REQUIRED DEPENDENCIES AND EXTENSIONS >> numpy: yes [version 1.11.1] >> dateutil: yes [using dateutil version 2.5.3] >> pytz: yes [using pytz version 2016.4] >> cycler: yes [using cycler version 0.10.0] >> tornado: yes [using tornado version 4.3] >> pyparsing: yes [using pyparsing version 2.1.5] >> libagg: yes [pkg-config information for 'libagg' could not >> be found. Using local copy.] >> freetype: no [The C/C++ header for freetype2 (ft2build.h) >> could not be found. You may need to install the >> development package.] >> png: yes [version 1.2.51] >> qhull: yes [pkg-config information for 'qhull' could not >> be >> found. Using local copy.] >> >> OPTIONAL SUBPACKAGES >> sample_data: yes [installing] >> toolkits: yes [installing] >> >> OPTIONAL BACKEND EXTENSIONS >> macosx: no [skipping due to configuration] >> qt5agg: no [PyQt5 not found] >> qt4agg: no [PySide not found; PyQt4 not found] >> gtk3agg: no [Requires pygobject to be installed.] >> gtk3cairo: no [Requires cairocffi or pycairo to be >> installed.] >> 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: no [cairocffi or pycairo not found] >> windowing: no [skipping due to configuration] >> >> OPTIONAL LATEX DEPENDENCIES >> dvipng: no >> 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] >> >> >> ============================================================================ >> * The following required packages can not be >> built: >> * freetype >> >> -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.