Issue with HDF5/Homebrew on 0.6.4

The following is preventing me from getting HDF5 up and running. This used to work for me, but I had to reinstall 0.6.4 after finding I couldn’t get HDF5 in 0.7 working, and now HDF5 won’t install.

INFO: Building HDF5
WARNING: Couldn't find bottle stanza in autoconf
==> Installing gmp from staticfloat/juliatranslated
==> Downloading
Already downloaded: /Users/guardian/Library/Caches/Homebrew.jl/gmp-6.1.2_2.high_sierra.bottle.tar.gz
==> Pouring gmp-6.1.2_2.high_sierra.bottle.tar.gz
Warning: The post-install step did not complete successfully
You can try again using `brew postinstall staticfloat/juliatranslated/gmp`
==> Summary
🍺  /Users/guardian/.julia/v0.6/Homebrew/deps/usr/Cellar/gmp/6.1.2_2: 18 files, 3.1MB
================================[ ERROR: HDF5 ]=================================

LoadError: failed process: Process(`/Users/guardian/.julia/v0.6/Homebrew/deps/usr/bin/brew install --ignore-dependencies staticfloat/juliatranslated/gmp`, ProcessExited(1)) [1]
while loading /Users/guardian/.julia/v0.6/HDF5/deps/build.jl, in expression starting on line 41