new formula: octave 3.4.0

This formula allows installing the brand new version 3.4.0 of Octave.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 127 insertions, 0 deletions

diff --git a/Library/Formula/octave.rb b/Library/Formula/octave.rb
new file mode 100644
index 000000000..a9e72cfec
--- /dev/null
+++ b/Library/Formula/octave.rb
@@ -0,0 +1,127 @@
+require 'formula'
+
+def no_magick?
+  ARGV.include? '--without-graphicsmagick'
+end
+
+def no_native?
+  ARGV.include? '--without-fltk'
+end
+
+def run_tests?
+  ARGV.include? '--test'
+end
+
+class Octave <Formula
+  url 'ftp://ftp.gnu.org/gnu/octave/octave-3.4.0.tar.bz2'
+  homepage 'http://www.gnu.org/software/octave/index.html'
+  sha1 '936a8fc962abd96e7568fb5909ec2a4d7997a1a8'
+
+  # critical dependencies
+  depends_on 'gnu-sed' => :build
+  depends_on 'fftw'
+  # there is an incompatibility between gfortran and Apple's BLAS as of 10.6.6:
+  #   http://www.macresearch.org/lapackblas-fortran-106
+  # we can work around it using dotwrp
+  depends_on 'dotwrp'
+  # octave refuses to work with BSD readline, so it's either this or --disable-readline
+  depends_on 'readline'
+  depends_on 'texinfo' => :build     # OS X's makeinfo won't work for this
+
+  # additional features
+  depends_on 'suite-sparse'
+  depends_on 'glpk'
+  depends_on 'graphicsmagick' unless no_magick?
+  depends_on 'hdf5'
+  depends_on 'pcre'
+  depends_on 'fltk' unless no_native?
+  depends_on 'qhull'
+  depends_on 'qrupdate'
+
+  # required for plotting if we don't have native graphics
+  depends_on 'gnuplot' if no_native?
+
+  def options
+    [
+      ['--without-graphicsmagick', 'Compile without GraphicsMagick'],
+      ['--without-fltk', 'Compile without fltk (disables native graphics)'],
+      ['--test', 'Run tests before installing'],
+    ]
+  end
+
+  def install
+    ENV.fortran
+
+    unless no_magick? or quiet_system "#{HOMEBREW_PREFIX}/bin/pkg-config", "--exists", "GraphicsMagick++"
+      onoe <<-EOS.undent
+        GraphicsMagick was installed without its C++ libraries. Please reinstall
+        GraphicsMagick with the option "--with-magick-plus-plus"; otherwise, install
+        Octave with option "--without-graphicsmagick".
+      EOS
+      exit 1
+    end
+
+    fltk = Formula.factory('fltk')
+    unless no_native? or fltk.installed_prefix.to_s !~ /1.1.10$/
+      onoe <<-EOS.undent
+        fltk 1.1.10 is too old to be used with Octave. Please reinstall ftlk with
+        the option "--HEAD"; otherwise, install Octave with option "--without-fltk".
+      EOS
+      exit 1
+    end
+
+    # yes, compiling octave takes a long time, but using -O2 gives negligible savings
+    # build time with -O2: user 58m5.295s   sys 7m29.064s
+    # build time with -O3: user 58m58.054s  sys 7m52.221s
+    ENV.m64 if Hardware.is_64_bit?
+    ENV.append_to_cflags "-D_REENTRANT"
+    ENV.x11
+
+    # as per the caveats in the gfortran formula:
+    ENV["FC"] = ENV["F77"] = "#{HOMEBREW_PREFIX}/bin/gfortran"
+    ENV["FFLAGS"] = ENV["FCFLAGS"] = ENV["CFLAGS"]
+
+    # almost everything is autodetected, but dotwrp must be linked before Accelerate
+    system "./configure", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}",
+                          "--with-blas=-ldotwrp -framework Accelerate"
+    system "make all"
+    system "make check" if run_tests?
+    system "make install"
+    prefix.install "test/fntests.log" if run_tests?
+  end
+
+  def caveats
+    brew_caveats = <<-EOS.undent
+      To install, you will need custom installs of fltk and graphicsmagick:
+          brew install --HEAD fltk
+          brew intalll graphicsmagick --with-magick-plus-plus
+
+      To omit these features, see "brew options octave"
+
+    EOS
+
+    native_caveats = <<-EOS.undent
+      Octave 3.4.0 supports "native" plotting using OpenGL and FLTK. You can activate
+      it for all future figures using the Octave command
+
+          graphics_toolkit ("fltk")
+
+      or for a specific figure handle h using
+
+          graphics_toolkit (h, "fltk")
+
+      Otherwise, gnuplot is still used by default, if available.
+    EOS
+
+    gnuplot_caveats = <<-EOS.undent
+      When plotting with gnuplot, you should set "GNUTERM=x11" before running octave;
+      if you are using Aquaterm, use "GNUTERM=aqua".
+    EOS
+
+    s = gnuplot_caveats
+    s = native_caveats + s unless no_native?
+    s = brew_caveats + s
+  end
+
+end