Dear all, I am trying to install Firedrake on a Mac OS X (version 10.9.5). I am following the installation instructions but I get an error during the PETSc installation step. I would really appreciate it if someone can help. Thank you very much! Best, Anna. ******************************************************************************* UNABLE to EXECUTE BINARIES for ./configure ------------------------------------------------------------------------------- Cannot run executables created with FC. If this machine uses a batch system to submit jobs you will need to configure using ./configure with the additional option --with-batch. Otherwise there is problem with the compilers. Can you compile and run code with your compiler '/usr/local/bin/mpif90'? ******************************************************************************* ---------------------------------------- Cleaning up... Command /usr/local/opt/python/bin/python2.7 -c "import setuptools, tokenize;__file__='/tmp/pip-NOkbbE-build/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-eEaDI5-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip-NOkbbE-build