Closed
Description
I'm currently trying to use pip (on a mac running osx El Capitan) to install a particular commit of matplotlib:
pip install -U --upgrade-strategy only-if-needed git+https://github.com/matplotlib/matplotlib.git@91e74257b770d#egg=matplotlib
I need this particular commit so I can fix an issue I (and others) are having with the width of type 42 fonts in v2.0. Unfortunately, this is failing with:
...
building 'matplotlib._qhull' extension
clang -Wno-unused-result -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -I/usr/local/include -I/usr/local/opt/sqlite/include -DMPL_DEVNULL=/dev/null -DPY_ARRAY_UNIQUE_SYMBOL=MPL_matplotlib__qhull_ARRAY_API -DNPY_NO_DEPRECATED_API=NPY_1_7_API_VERSION -D__STDC_FORMAT_MACROS=1 -I/usr/local/lib/python3.4/site-packages/numpy/core/include -I/usr/local/include -I/usr/include -I/usr/X11/include -I/opt/X11/include -I. -I/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/include/python3.4m -c src/qhull_wrap.c -o build/temp.macosx-10.9-x86_64-3.4/src/qhull_wrap.o
src/qhull_wrap.c:112:5: error: use of undeclared identifier 'QHULL_LIB_CHECK'
QHULL_LIB_CHECK
^
1 error generated.
error: command 'clang' failed with exit status 1
...
I know matplotlib is finding the relevant qhull library:
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REQUIRED DEPENDENCIES AND EXTENSIONS
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qhull: yes [Using system Qhull (version unknown, no pkg-
config info)]
...
so I'm not sure what the problem is. Examining qhull_wrap.c in the repo shows that the offending line was recently added in a recent commit with the note Update qhull to 2015.2. Is the fix that I should try to upgrade the qhull libs on my system? The matplotlib install doc makes it sound like the qhull libs are included with matplotlib, so I'm somewhat confused.