{"action":"created","issue":{"url":"https://api.github.com/repos/Homebrew/homebrew/issues/46553","labels_url":"https://api.github.com/repos/Homebrew/homebrew/issues/46553/labels{/name}","comments_url":"https://api.github.com/repos/Homebrew/homebrew/issues/46553/comments","events_url":"https://api.github.com/repos/Homebrew/homebrew/issues/46553/events","html_url":"https://github.com/Homebrew/homebrew/issues/46553","id":119815590,"number":46553,"title":"Issue with `:mpi` dependency","user":{"login":"dpo","id":38760,"avatar_url":"https://avatars.githubusercontent.com/u/38760?v=3","gravatar_id":"","url":"https://api.github.com/users/dpo","html_url":"https://github.com/dpo","followers_url":"https://api.github.com/users/dpo/followers","following_url":"https://api.github.com/users/dpo/following{/other_user}","gists_url":"https://api.github.com/users/dpo/gists{/gist_id}","starred_url":"https://api.github.com/users/dpo/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dpo/subscriptions","organizations_url":"https://api.github.com/users/dpo/orgs","repos_url":"https://api.github.com/users/dpo/repos","events_url":"https://api.github.com/users/dpo/events{/privacy}","received_events_url":"https://api.github.com/users/dpo/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":8,"created_at":"2015-12-01T21:48:30Z","updated_at":"2015-12-17T16:54:19Z","closed_at":null,"body":"This may be related to #46461 or not, but there is another issue with the `:mpi` dependency:\r\n```\r\n$ brew uninstall open-mpi\r\nUninstalling /usr/local/Cellar/open-mpi/1.10.1_1... (783 files, 22M)\r\n$ brew uninstall mpich\r\nError: No such keg: /usr/local/Cellar/mpich\r\n$ brew install mpich\r\n==> Downloading https://homebrew.bintray.com/bottles/mpich-3.1.4_1.mavericks.bottle.tar.gz\r\nAlready downloaded: /Library/Caches/Homebrew/mpich-3.1.4_1.mavericks.bottle.tar.gz\r\n==> Pouring mpich-3.1.4_1.mavericks.bottle.tar.gz\r\n🍺  /usr/local/Cellar/mpich/3.1.4_1: 850 files, 16M\r\n\r\n$ brew install -v parmetis  # a formula that depends_on :mpi\r\n==> Installing parmetis from homebrew/homebrew-science\r\n==> Installing dependencies for homebrew/science/parmetis: open-mpi\r\n==> Installing homebrew/science/parmetis dependency: open-mpi\r\nError: Cannot install open-mpi because conflicting formulae are installed.\r\n\r\n  mpich: because both install mpi__ compiler wrappers\r\n\r\nPlease `brew unlink mpich` before continuing.\r\n\r\nUnlinking removes a formula's symlinks from /usr/local. You can\r\nlink the formula again after the install finishes. You can --force this\r\ninstall, but the build may fail or cause obscure side-effects in the\r\nresulting software.\r\n```\r\nSo `mpich` is no longer recognized as satisfying the `:mpi` dependency."},"comment":{"url":"https://api.github.com/repos/Homebrew/homebrew/issues/comments/165508906","html_url":"https://github.com/Homebrew/homebrew/issues/46553#issuecomment-165508906","issue_url":"https://api.github.com/repos/Homebrew/homebrew/issues/46553","id":165508906,"user":{"login":"UniqMartin","id":11892150,"avatar_url":"https://avatars.githubusercontent.com/u/11892150?v=3","gravatar_id":"","url":"https://api.github.com/users/UniqMartin","html_url":"https://github.com/UniqMartin","followers_url":"https://api.github.com/users/UniqMartin/followers","following_url":"https://api.github.com/users/UniqMartin/following{/other_user}","gists_url":"https://api.github.com/users/UniqMartin/gists{/gist_id}","starred_url":"https://api.github.com/users/UniqMartin/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/UniqMartin/subscriptions","organizations_url":"https://api.github.com/users/UniqMartin/orgs","repos_url":"https://api.github.com/users/UniqMartin/repos","events_url":"https://api.github.com/users/UniqMartin/events{/privacy}","received_events_url":"https://api.github.com/users/UniqMartin/received_events","type":"User","site_admin":false},"created_at":"2015-12-17T16:54:19Z","updated_at":"2015-12-17T16:54:19Z","body":"Does it make a difference if you add `--build-from-source` to `brew install -v parmetis`?"}}