Installing Apache MADLib on OS X using Postgresql

install-madlib-os-x-postgresql12

The documentation for madlib is out of date because brew no longer supports compiler flags from the command line.
Select the appropriate steps according to your current install on OS X

*PYTHON*

brew install python
export PYTHON=/usr/local/bin/python3

*Postgresql*

brew install postgresql postgis
brew edit postgresql

The above will open your shell editor.  Search in the file for `args` definition and then add --with-python

      args = %W[
      --disable-debug
      --prefix=#{prefix}
      --datadir=#{HOMEBREW_PREFIX}/share/postgresql
      --libdir=#{HOMEBREW_PREFIX}/lib
      --includedir=#{HOMEBREW_PREFIX}/include
      --sysconfdir=#{etc}
      --docdir=#{doc}
      --enable-thread-safety
      --with-bonjour
      --with-gssapi
      --with-icu
      --with-ldap
      --with-libxml
      --with-libxslt
      --with-openssl
      --with-pam
      --with-perl
      --with-python
      --with-uuid=e2fs
    ]

Save the file and begin the recompilation based on the above build definition:

brew reinstall -s postgresql

Start the server after the install is complete:

brew services start postgresql

Now you are setup to install madlib:

/usr/local/madlib/bin/madpack -s madlib -p postgres install -c un/pw@localhost/db