error: command 'clang' failed with exit status 1 while installing 'kwant'

[tlvdberg]

Hi I tried to install kwant, but this gives an error:
I reinstalled gcc, I installed cython.

Don't know what it is.

Here's information from the terminal.
Thanks for helping

brew install kwant
==> Installing kwant from michaelwimmer/homebrew-kwant
==> Using Homebrew-provided fortran compiler.
This may be changed by setting the FC environment variable.
==> Building with an alternative Fortran compiler
This is unsupported.
Warning: No Fortran optimization information was provided. You may want to consider
setting FCFLAGS and FFLAGS or pass the --default-fortran-flags option to
brew install if your compiler is compatible with GCC.

If you like the default optimization level of your compiler, ignore this
warning.
==> Downloading downloads.kwant-project.org/kwant/kwant-1.0.2.tar.gz
Already downloaded: /Library/Caches/Homebrew/kwant-1.0.2.tar.gz
==> Patching
patching file build.conf
==> python setup.py install --prefix=/usr/local/Cellar/kwant/1.0.2
Build configuration was:
User-configured LAPACK and BLAS
User-configured MUMPS

---

error: command 'clang' failed with exit status 1

[michaelwimmer]

Can you give me a bit more feedback on your system? What is the version of MacOSX that you are using?

[tlvdberg]

Hi,
Thanks for answering.
I'm on Yosemite 10.10.3. I installed python etc. via brew (not pip) as was suggested on the kwant website (i installed gcc, because gfortran is not provided separately anymore).

When I do 'brew doctor' I get:

Warning: Unbrewed dylibs were found in /usr/local/lib.
If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
/usr/local/lib/libhistory.6.1.dylib
/usr/local/lib/libreadline.6.1.dylib

But when I do 'rm', it says:
rm /usr/local/lib/libhistory.6.1.dylib
override r-xr-xr-x tvdberg/wheel for /usr/local/lib/libhistory.6.1.dylib? n

Should I say yes? Anyway, I don't think this has anything to do with it.

Thanks again.

[michaelwimmer]

Hi, sorry it took a while. The bug was a bit tricky, for some reasons distutils did not process the numpy include path correctly. This sees to be a bug of python or homebrew, actually.

I created a workaround. b286627 should fix the problem.

[tlvdberg]

Hi,
Thank you so much.
I'm traveling right now, but I'll try the fix a.s.a.p.
All the best,
Tineke

On Thu, Jul 2, 2015 at 11:39 PM, Michael Wimmer [email protected]
wrote:

Hi, sorry it took a while. The bug was a bit tricky, for some reasons
distutils did not process the numpy include path correctly. This sees to be
a bug of python or homebrew, actually.

I created a workaround. b286627
michaelwimmer@b286627
should fix the problem.

—
Reply to this email directly or view it on GitHub
https://github.com/michaelwimmer/homebrew-kwant/issues/2#issuecomment-118176024
.