Dear Onno,

Can you please try these?

$ brew update

$ brew install autoconf

What does the following say?

$ brew doctor

Thanks,

Miklos

Did:

firedrake-clean
and/or recovering from the broken installation by

cd src/firedrake
git pull
./scripts/firedrake-install --rebuild-script

then

firedrake-update

but get error message:

Error: No such keg: /usr/local/Cellar/autoconf

Error: Cannot write to /usr/local/Cellar

Traceback (most recent call last):

File "/Users/amtob/werk/firedrake/bin/firedrake-update", line 813, in <module>

brew_install("autoconf")

File "/Users/amtob/werk/firedrake/bin/firedrake-update", line 250, in brew_install

check_call(["brew", "install"] + arguments)

File "/Users/amtob/werk/firedrake/bin/firedrake-update", line 228, in check_call

subprocess.check_call(arguments, env=env)

File "/usr/local/Cellar/python/2.7.10_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 540, in check_call

raise CalledProcessError(retcode, cmd)

subprocess.CalledProcessError: Command '['brew', 'install', 'autoconf']' returned non-zero exit status 1

on laptop while firedrake worked few weeks ago.