rpm 5.4 (new formula)

Requires a patch to build with clang (no nested functions).
The ltmain.sh was broken due to a faulty Mandriva libtoolize.
Make sure that the OpenMP setting matches what beecrypt has.
Also ensure that all "mandatory" features are enabled.

Closes Homebrew/homebrew#12618.
Closes Homebrew/homebrew#12635.
Closes Homebrew/homebrew#19559.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/rpm.rb

@@ -0,0 +1,67 @@
+require 'formula'
+
+class RpmDownloadStrategy < CurlDownloadStrategy
+  attr_reader :tarball_name
+  def initialize name, package
+    super
+    package_name = @spec == :name ? @ref : name
+    @tarball_name="#{package_name}-#{package.version}.tar.gz"
+  end
+  def stage
+    safe_system "rpm2cpio.pl <#{@tarball_path} | cpio -vi #{@tarball_name}"
+    safe_system "/usr/bin/tar -xzf #{@tarball_name} && rm #{@tarball_name}"
+    chdir
+  end
+
+  def ext
+    ".src.rpm"
+  end
+end
+
+class Rpm < Formula
+  homepage 'http://www.rpm5.org/'
+  url 'http://rpm5.org/files/rpm/rpm-5.4/rpm-5.4.10-0.20120706.src.rpm',
+      :using => RpmDownloadStrategy, :name => 'rpm'
+  version '5.4.10'
+  sha1 'ce43b5871c4f884bea679f6c37d5cb9df7f2e520'
+
+  depends_on 'db'
+  depends_on 'libmagic'
+  depends_on 'popt'
+  depends_on 'beecrypt'
+  depends_on 'libtasn1'
+  depends_on 'neon'
+  depends_on 'gettext'
+  depends_on 'xz'
+  depends_on 'ossp-uuid'
+  depends_on 'pcre'
+  depends_on 'rpm2cpio' => :build
+  depends_on 'libtool' => :build
+
+  # nested functions are not std C
+  def patches
+    'http://rpm5.org/cvs/patchset?cn=16840'
+  end
+
+  def install
+    args = %W[
+        --prefix=#{prefix}
+        --with-path-cfg=#{etc}/rpm
+        --disable-openmp
+        --disable-nls
+        --disable-dependency-tracking
+        --with-libtasn1
+        --with-neon
+        --with-uuid
+        --with-pcre
+        --with-lua
+        --with-syck
+        --without-apidocs
+    ]
+
+    system 'glibtoolize -if' # needs updated ltmain.sh
+    system "./configure", *args
+    system "make"
+    system "make install"
+  end
+end