Preliminary Homebrew formula for Octave 3.8

octave.rb

require 'formula'

class Octave < Formula
  homepage 'http://www.gnu.org/software/octave/index.html'
  url      'http://ftpmirror.gnu.org/octave/octave-3.8.0.tar.bz2'
  mirror   'http://ftp.gnu.org/gnu/octave/octave-3.8.0.tar.bz2'
  sha1     'ebb03485b72d97fa01f105460f81016f94680f77'
  # This isn't ready yet. But we're getting there.
  # head     'http://hydra.nixos.org/job/gnu/octave-default/tarball/latest/download'

  skip_clean 'share/info' # Keep the docs

  option 'without-check',   'Skip build-time tests (not recommended)'
  option 'without-docs',    'Do not build documentation'
  option 'without-gui',     'Do not build the experimental GUI'
  option 'with-jit',        'Use the experimental JIT support'

  option 'without-openblas','Use native LAPACK/BLAS (vecLib)'
  option 'without-readline','Do not use the READLINE library (not recommended)'

  option 'without-arpack',  'Do not use ARPACK (large-scale eigenvalue  dsolver)'
  option 'without-curl',    'Do not use cURL (urlread/urlwrite/@ftp)'
  option 'without-fftw',    'Do not use FFTW (fft,ifft,fft2,etc.)'
  option 'without-opengl',  'Do not use OpenGL graphics'
  option 'without-glpk',    'Do not use GLPK'
  option 'without-gnuplot', 'Do not use gnuplot graphics'
  option 'without-graphicsmagick', 'Do not use GraphicsMagick++ (imread,imwrite)'
  option 'without-hdf5',    'Do not use HDF5 (hdf5 data file support)'
  option 'without-qhull',   'Do not use the Qhull library (delaunay,voronoi,etc.)'
  option 'without-qrupdate','Do not use the QRupdate package (qrdelete,qrinsert,qrshift,qrupdate)'
  option 'without-suite-sparse','Do not use SuiteSparse (sparse matrix operations)'
  option 'without-zlib',    'Do not use zlib (compressed MATLAB file formats)'

  depends_on :fortran
  depends_on :x11

  depends_on 'pkg-config'   => :build
  depends_on 'gnu-sed'      => :build
  depends_on 'texinfo'      => :build if build.with? 'docs'
  depends_on 'pcre'

  depends_on 'openblas'     => :recommended
  depends_on 'dotwrp' if MacOS.version == :snow_leopard and MacOS.prefer_64_bit and not build.with? 'openblas'

  depends_on 'readline'     => :recommended
  depends_on 'arpack'       => :recommended
  depends_on 'curl'         => :recommended if MacOS.version == :leopard
  depends_on 'fftw'         => :recommended
  depends_on 'fltk'         if build.with? 'gui'
  depends_on 'fontconfig'   if build.with? 'opengl'
  depends_on 'freetype'     if build.with? 'opengl'
  depends_on 'glpk'         => :recommended
  # Someone will need to make a formula for this
  # depends_on 'gp2ps'      if build.with? 'opengl'
  depends_on 'gnuplot'      => :recommended
  depends_on 'graphicsmagick' => :recommended
  depends_on 'hdf5'         => :recommended
  depends_on 'llvm'         if build.with? 'jit'
  depends_on 'qhull'        => :recommended
  depends_on 'qrupdate'     => :recommended
  depends_on 'qscintilla2'  if build.with? 'gui'
  depends_on 'qt'           if build.with? 'gui'
  depends_on 'suite-sparse' => :recommended

  def blas_flags
    if build.with? 'openblas'
      flags = "-L#{Formula.factory('openblas').lib} -lopenblas"
    elsif MacOS.version == :snow_leopard and MacOS.prefer_64_bit?
      flags = "-ldotwrp"
    else
      flags = ""
    end
  end

  def patches
  	[
  		# Allows libtool to recognize framework paths via the -F flag
  		"https://gist.github.com/mcg1969/8328474/raw/octave-libtool.diff",
  		# Allows configure to *find* those frameworks
  		"https://gist.github.com/mcg1969/8328356/raw/octave-configure.diff",
	  	# Fixes a known bug in jit-typeinfo.{cc,h} for the clang compiler
  		"https://gist.github.com/mcg1969/8328094/raw/jit-typeinfo.diff"
  	]
  end unless build.head?

  def install
    ENV.m64 if MacOS.prefer_64_bit?
    ENV.append_to_cflags "-D_REENTRANT"

    args = [
      '--disable-dependency-tracking',
      "--prefix=#{prefix}"
    ]

    args << '--without-framework-carbon' if MacOS.version >= :lion
    # avoid spurious 'invalid assignment to cs-list' erorrs on 32 bit installs:
    # args << 'CXXFLAGS=-O0' unless MacOS.prefer_64_bit?

    args << "--disable-docs" if build.without? 'docs'
    args << "--disable-readline" if build.without? 'readline'
    # --without-arpack?
    args << "--without-curl" if build.without? 'curl'
    args << "--without-fftw3" if build.without? 'fftw'
    args << "--disable-gui" if build.without? 'gui'
    args << "--without-opengl" if build.without? 'opengl'
    args << "--without-glpk" if build.without? 'glpk'
    args << "--without-hdf5" if build.without? 'hdf5'
    args << "--disable-jit" if build.without? 'jit'
    args << "--without-qhull" if build.without? 'qhull'
    args << "--without-qrupdate" if build.without? 'qrupdate'
    args << "--without-amd" if build.without? 'suite-sparse'
    args << "--without-camd" if build.without? 'suite-sparse'
    args << "--without-colamd" if build.without? 'suite-sparse'
    args << "--without-ccolamd" if build.without? 'suite-sparse'
    args << "--without-cxsparse" if build.without? 'suite-sparse'
    args << "--without-camd" if build.without? 'suite-sparse'
    args << "--without-cholmod" if build.without? 'suite-sparse'
    args << "--without-umfpack" if build.without? 'suite-sparse'
    args << "--without-zlib" if build.without? 'zlib'

    args << "--with-blas=#{blas_flags}" if blas_flags != "" 
    args << "--with-lapack=#{blas_flags}" if blas_flags != ""
    args << '--disable-jit' if build.without? 'llvm'
    args << '--disable-docs' if build.without? 'docs'
    args << '--without-opengl' if build.without? 'fltk'
    args << '--disable-gui' if build.without? 'qt'

    system "./configure", *args
    system "make all"
    system "make check 2>&1 | tee make-check.log" if build.with? 'check'
    system "make install"

    prefix.install ["test/fntests.log", "make-check.log"] if build.with? 'check'
  end

  def caveats
    gnuplot_caveats = <<-EOS.undent

      When using the gnuplot plotting engine, you should set "GNUTERM=x11" before 
      running octave; if your are using Aquaterm, use "GNUTERM=aqua".
    EOS

    native_caveats = <<-EOS.undent
      Octave now enables "native" plotting using OpenGL/FLTK by default. If you
      prefer gnuplot, you can activate it for all future figures with the command
          graphics_toolkit ("gnuplot")
      or for a specific figure handle h using
          graphics_toolkit (h,"gnuplot")
    EOS

    gui_caveats = <<-EOS.undent

      The Octave GUI is experimental and not enabled by default. To use it, use the
      command-line argument "--force-gui"; e.g.,
          octave --force-gui
    EOS

    qscintilla_caveats = <<-EOS.undent

      Octave was built without QScintilla2 support, which means that the GUI editor
      is not operational.
    EOS

    s = ''
    s = s + native_caveats if build.with? 'fltk'
    s = s + gnuplot_caveats if build.with? 'gnuplot'
    s = s + gui_caveats if build.with? 'qt'
    s = s + qscintilla_caveats if build.with? 'qt' and build.without? 'qscintilla2'
  end
end