require 'formula'

class Libgsm < Formula
  homepage 'http://www.quut.com/gsm/'
  url 'http://www.quut.com/gsm/gsm-1.0.13.tar.gz'
  sha1 '668b0a180039a50d379b3d5a22e78da4b1d90afc'

  option :universal

  def patches
    # Builds a dynamic library for gsm, this package is no longer developed
    # upstream. Patch taken from Debian and modified to build a dylib.
    'https://gist.github.com/dholm/5840964/raw/'
  end

  def install
    ENV.universal_binary if build.universal?
    ENV.append_to_cflags '-c -O2 -DNeedFunctionPrototypes=1'

    # Only the targets for which a directory exists will be installed
    bin.mkpath
    lib.mkpath
    include.mkpath
    man1.mkpath
    man3.mkpath

    # Dynamic library must be built first
    system "make", "lib/libgsm.1.0.13.dylib",
           "CC=#{ENV.cc}", "CCFLAGS=#{ENV.cflags}",
           "LDFLAGS=#{ENV.ldflags}"
    system "make", "all",
           "CC=#{ENV.cc}", "CCFLAGS=#{ENV.cflags}",
           "LDFLAGS=#{ENV.ldflags}"
    system "make", "install",
           "INSTALL_ROOT=#{prefix}",
           "GSM_INSTALL_INC=#{include}"
    lib.install Dir['lib/*dylib']
  end
end