yacas 1.3.3

Closes Homebrew/homebrew#24939.

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

Formula/yacas.rb

@@ -0,0 +1,17 @@
+require 'formula'
+
+class Yacas < Formula
+  homepage 'http://yacas.sourceforge.net'
+  url 'http://yacas.sourceforge.net/backups/yacas-1.3.3.tar.gz'
+  sha1 '749952102f5321d62788be8ae459c1a67078b33d'
+
+  option "with-server", "Build the network server version"
+
+  def install
+    args = [ "--prefix=#{prefix}" ]
+    args << "--enable-server" if build.with? "server"
+
+    system "./configure", *args
+    system "make install"
+  end
+end