modules 3.2.10

The Environment Modules package provides for the dynamic modification
of a user's environment via modulefiles.

Closes Homebrew/homebrew#27394.

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

Formula/modules.rb

@@ -0,0 +1,38 @@
+require "formula"
+
+class Modules < Formula
+  homepage "http://modules.sourceforge.net/"
+  url "https://downloads.sourceforge.net/project/modules/Modules/modules-3.2.10/modules-3.2.10.tar.bz2"
+  sha1 "beb67a228ad890206ac776981269a7287cfb7596"
+
+  depends_on :x11 => :optional
+
+  def install
+    # -DUSE_INTERP_ERRORLINE fixes
+    # error: no member named 'errorLine' in 'struct Tcl_Interp'
+    args = %W[
+      --disable-debug
+      --disable-dependency-tracking
+      --disable-silent-rules
+      --prefix=#{prefix}
+      --datarootdir=#{share}
+      --disable-versioning
+      CPPFLAGS=-DUSE_INTERP_ERRORLINE]
+    args << "--without-x" if build.without? "x11"
+    system "./configure", *args
+    system "make", "install"
+  end
+
+  def caveats; <<-EOS.undent
+    To activate modules, add the following at the end of your .zshrc:
+      source #{opt_prefix}/Modules/init/zsh
+    You will also need to reload your .zshrc:
+      source ~/.zshrc
+    EOS
+  end
+
+  test do
+    system *%W[#{prefix}/Modules/bin/modulecmd --version]
+    system "zsh", "-c", "source #{prefix}/Modules/init/zsh; module"
+  end
+end