libslax 0.16.10

Also move to github releases vs on-demand tarballs

Closes Homebrew/homebrew#21125.

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

Formula/libslax.rb

@@ -2,21 +2,21 @@ require 'formula'
 
 class Libslax < Formula
   homepage 'http://www.libslax.org/'
-  url 'https://github.com/Juniper/libslax/archive/0.16.9.tar.gz'
-  sha1 '96676aed054ad25e3a71b9c383a96ba86222438b'
+  url 'https://github.com/Juniper/libslax/releases/0.16.10/3029/libslax-0.16.10.tar.gz'
+  sha1 '0300a20ecf8cbc6315df3e13df3295024202378c'
 
   head 'https://github.com/Juniper/libslax.git'
 
-  depends_on 'automake' => :build
+  depends_on 'automake' => :build if build.head?
   depends_on 'libtool'  => :build
-
-  # Need newer versions of these libraries
   depends_on 'libxml2'
   depends_on 'libxslt'
   depends_on 'curl' if MacOS.version <= :lion
 
   def install
-    system "sh ./bin/setup.sh"
+    # If build from read run script to run autoconf
+    system "sh ./bin/setup.sh" if build.head?
+
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"
     system "make install"