adamv message: https://github.com/mxcl/homebrew/issues/5249#comment_1027676

brew edit libwmf

  1 require 'formula'
  2 
  3 class Libwmf < Formula
  4   url 'http://downloads.sourceforge.net/project/wvware/libwmf/0.2.8.4/libwmf-0.2.8.4.tar.gz'
  5   homepage 'http://wvware.sourceforge.net/libwmf.html'
  6   md5 'd1177739bf1ceb07f57421f0cee191e0'
  7 
  8   depends_on 'pkg-config' => :build
  9   depends_on 'gd'
 10 
 11   def install
 12     ENV.libpng
 13     system "./configure", "--disable-debug", "--disable-dependency-tracking",
 14                           "--prefix=#{prefix}",
 15                           "--with-freetype=/usr/X11"
 16     system "make"
 17     system "make install"
 18     ENV.j1 # yet another rubbish Makefile
 19   end
 20 end