Autoconf, Automake and Libtool

We need these now for Xcode-4.3/CLT4X installations.

Also prevent m4 error in installer. And prevent brew doctor complaining if we're Xcode 4.3 or above.

Closes #10349. Fixes #10423. Refs #9179.

1 files changed, 31 insertions, 0 deletions

diff --git a/Library/Formula/libtool.rb b/Library/Formula/libtool.rb
new file mode 100644
index 000000000..ca569b96d
--- /dev/null
+++ b/Library/Formula/libtool.rb
@@ -0,0 +1,31 @@
+require 'formula'
+
+# Xcode 4.3 provides the Apple libtool
+# This is not the same, but as a result we must install these as glibtool etc.
+
+class Libtool < Formula
+  homepage 'http://www.gnu.org/software/libtool/'
+  url 'http://ftpmirror.gnu.org/libtool/libtool-2.4.tar.gz'
+  md5 'b32b04148ecdd7344abc6fe8bd1bb021'
+
+  if MacOS.xcode_version.to_f < 4.3 or File.file? "/usr/bin/libtoolize"
+    keg_only "Xcode (up to and including 4.2) provides (a rather old) Autoconf."
+  end
+
+  def install
+    system "./configure", "--disable-debug", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}", "--program-prefix=g",
+                          "--enable-ltdl-install"
+    system "make install"
+  end
+
+  def caveats; <<-EOS.undent
+    In order to prevent conflicts with Apple's own libtool we have prepended a "g"
+    so, you have instead: glibtool and glibtoolize.
+    EOS
+  end
+
+  def test
+    system "#{HOMEBREW_PREFIX}/bin/glibtoolize --version"
+  end
+end