pip install matplotlib fails while building kiwisolver on mac

[goerz]

Since today, when I try to install matplotlib on macOS via pip, the installation fails while trying to build kiwisolver. Can we ensure that all dependencies of matplotlib provide wheels?

log

    ...
    Building wheels for collected packages: kiwisolver
    Building wheel for kiwisolver (setup.py) ... error
    Complete output from command /Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-install-t9u3qteo/kiwisolver/setup.py';f=getattr(tokenize, 'o$
    en', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-wheel-gp3bw9o8 --python-tag cp36:
    running bdist_wheel
    running build
    running build_ext
    building 'kiwisolver' extension
    creating build
    creating build/temp.macosx-10.7-x86_64-3.6
    creating build/temp.macosx-10.7-x86_64-3.6/py
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include -arch x86_64 -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include -ar$
    h x86_64 -I. -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include/python3.6m -c py/kiwisolver.cpp -o build/temp.macosx-10.7-x86_64-3.6/py/kiwisolver.o
    warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    In file included from py/kiwisolver.cpp:9:
    In file included from ./kiwi/kiwi.h:9:
    ./kiwi/constraint.h:9:10: fatal error: 'map' file not found
    #include 
            ^~~~~
    1 warning and 1 error generated.
    error: command 'gcc' failed with exit status 1
----------------------------------------
Failed building wheel for kiwisolver
Running setup.py clean for kiwisolver
Failed to build kiwisolver
Installing collected packages: mpmath, sympy, click, pyparsing, six, cycler, python-dateutil, kiwisolver, matplotlib, coverage, py, atomicwrites, attrs, pluggy, more-itertools, pytest, pytest-cov, sphinxcontrib-jsmath, docutils, MarkupSafe, jinja2, snowballstemmer, sphin$
contrib-htmlhelp, imagesize, chardet, urllib3, idna, requests, pytz, babel, sphinxcontrib-serializinghtml, sphinxcontrib-applehelp, packaging, sphinxcontrib-devhelp, alabaster, sphinxcontrib-qthelp, Pygments, sphinx, better-apidoc, sphinx-autodoc-typehints, isort, appdir$
, toml, black, decorator, ipython-genutils, traitlets, pyrsistent, jsonschema, jupyter-core, nbformat, webencodings, bleach, mistune, testpath, defusedxml, entrypoints, pandocfilters, nbconvert, tornado, ptyprocess, terminado, pyzmq, Send2Trash, jupyter-client, appnope, $
cwidth, prompt-toolkit, pickleshare, pexpect, parso, jedi, backcall, ipython, ipykernel, prometheus-client, notebook, jupyter-console, widgetsnbextension, ipywidgets, qtconsole, jupyter, argh, PyYAML, pathtools, watchdog, port-for, livereload, sphinx-autobuild, sphinx-rt$
-theme, smmap2, gitdb2, gitpython, apipkg, execnet, pytest-forked, pytest-xdist, watermark, virtualenv, nodeenv, zipp, importlib-metadata, identify, cfgv, importlib-resources, aspy.yaml, pre-commit, pep8, nbval, pycodestyle, pyflakes, mccabe, flake8, readme-renderer, req$
ests-toolbelt, pkginfo, tqdm, twine, nbsphinx, qdyn
Running setup.py install for kiwisolver ... error
    Complete output from command /Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-install-t9u3qteo/kiwisolver/setup.py';f=getattr(tokenize, $
open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-record-dv16j2ct/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_ext
    building 'kiwisolver' extension
    creating build
    creating build/temp.macosx-10.7-x86_64-3.6
    creating build/temp.macosx-10.7-x86_64-3.6/py
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include -arch x86_64 -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include -$
rch x86_64 -I. -I/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/include/python3.6m -c py/kiwisolver.cpp -o build/temp.macosx-10.7-x86_64-3.6/py/kiwisolver.o
    warning: include path for stdlibc++ headers not found; pass '-stdlib=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    In file included from py/kiwisolver.cpp:9:
    In file included from ./kiwi/kiwi.h:9:
    ./kiwi/constraint.h:9:10: fatal error: 'map' file not found
    #include <map>
            ^~~~~
    1 warning and 1 error generated.
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/Users/goerz/Documents/Programming/github/qdynpylib/.venv/py36/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-install-t9u3qteo/kiwisolver/setup.py';f=getattr(tokenize, 'open', open)(__file__);$
ode=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-record-dv16j2ct/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in
/private/var/folders/ll/rgszt4s525s2xtv8rr60lqz40000gn/T/pip-install-t9u3qteo/kiwisolver/
make: *** [.venv/py36/bin/py.test] Error 1

[jklymak]

First, to work around this you should be able to do:

export LDFLAGS=--stdlib=libc++
export CFLAGS=--stdlib=libc++

Second, agreed that it'd be great if there were wheels: @MatthieuDartiailh and @matthew-brett made wheels for the last kiwi release, but that didn't get done yet for yesterdays release (I assume). I'll open a ticket there...

[MatthieuDartiailh]

The wheels have been uploaded. There was only a couple of hour of gap between the source and wheel upload.

[jklymak]

The wheel seems to be there:

https://files.pythonhosted.org/packages/df/93/8bc9b52a8846be2b9572aa0a7c881930939b06e4abe1162da6a0430b794f/kiwisolver-1.1.0-cp37-cp37m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl

so I'll close this, but feel free to comment if its not working for some reason.