octave: migrate from homebrew/science

Closes #15909.

Signed-off-by: FX Coudert <fxcoudert@gmail.com>

Formula/octave.rb

@@ -0,0 +1,94 @@
+class Octave < Formula
+  desc "High-level interpreted language for numerical computing"
+  homepage "https://www.gnu.org/software/octave/index.html"
+  url "https://ftp.gnu.org/gnu/octave/octave-4.2.1.tar.gz"
+  mirror "https://ftpmirror.gnu.org/octave/octave-4.2.1.tar.gz"
+  sha256 "80c28f6398576b50faca0e602defb9598d6f7308b0903724442c2a35a605333b"
+
+  head do
+    url "http://www.octave.org/hg/octave", :branch => "default", :using => :hg
+    depends_on :hg => :build
+    depends_on "autoconf" => :build
+    depends_on "automake" => :build
+    depends_on "bison" => :build
+    depends_on "icoutils" => :build
+    depends_on "librsvg" => :build
+  end
+
+  depends_on "gnu-sed" => :build # http://lists.gnu.org/archive/html/octave-maintainers/2016-09/msg00193.html
+  depends_on "pkg-config" => :build
+  depends_on :fortran
+  depends_on "arpack"
+  depends_on "epstool"
+  depends_on "fftw"
+  depends_on "fltk"
+  depends_on "fontconfig"
+  depends_on "freetype"
+  depends_on "ghostscript"
+  depends_on "gl2ps"
+  depends_on "glpk"
+  depends_on "gnuplot"
+  depends_on "graphicsmagick"
+  depends_on "hdf5"
+  depends_on "libsndfile"
+  depends_on "pcre"
+  depends_on "portaudio"
+  depends_on "pstoedit"
+  depends_on "qhull"
+  depends_on "qrupdate"
+  depends_on "suite-sparse"
+  depends_on "transfig"
+  depends_on "veclibfort"
+
+  # Dependencies use Fortran, leading to spurious messages about GCC
+  cxxstdlib_check :skip
+
+  # If GraphicsMagick was built from source, it is possible that it was
+  # done to change quantum depth. If so, our Octave bottles are no good.
+  # https://github.com/Homebrew/homebrew-science/issues/2737
+  def pour_bottle?
+    Tab.for_name("graphicsmagick").without?("quantum-depth-32") &&
+      Tab.for_name("graphicsmagick").without?("quantum-depth-8")
+  end
+
+  def install
+    if build.stable?
+      # Remove for > 4.2.1
+      # Remove inline keyword on file_stat destructor which breaks macOS
+      # compilation (bug #50234).
+      # Upstream commit from 24 Feb 2017 http://hg.savannah.gnu.org/hgweb/octave/rev/a6e4157694ef
+      inreplace "liboctave/system/file-stat.cc",
+        "inline file_stat::~file_stat () { }", "file_stat::~file_stat () { }"
+    end
+
+    # Default configuration passes all linker flags to mkoctfile, to be
+    # inserted into every oct/mex build. This is unnecessary and can cause
+    # cause linking problems.
+    inreplace "src/mkoctfile.in.cc", /%OCTAVE_CONF_OCT(AVE)?_LINK_(DEPS|OPTS)%/, '""'
+
+    system "./bootstrap" if build.head?
+    system "./configure", "--prefix=#{prefix}",
+                          "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--enable-link-all-dependencies",
+                          "--enable-shared",
+                          "--disable-static",
+                          "--disable-docs",
+                          "--disable-java",
+                          "--without-OSMesa",
+                          "--without-qt",
+                          "--with-x=no",
+                          "--with-blas=-L#{Formula["veclibfort"].opt_lib} -lvecLibFort",
+                          "--with-portaudio",
+                          "--with-sndfile"
+    system "make", "all"
+    system "make", "install"
+  end
+
+  test do
+    system bin/"octave", "--eval", "(22/7 - pi)/pi"
+    # this is supposed to crash octave if there is a problem with veclibfort
+    system bin/"octave", "--eval", "single ([1+i 2+i 3+i]) * single ([ 4+i ; 5+i ; 6+i])"
+  end
+end

tap_migrations.json

@@ -41,7 +41,6 @@
   "n98-magerun": "homebrew/php",
   "newick-utils": "homebrew/science",
   "nlopt": "homebrew/science",
-  "octave": "homebrew/science",
   "opencv": "homebrew/science",
   "openfst": "homebrew/science",
   "opengrm-ngram": "homebrew/science",