New Formula: QCachegrind

Closes Homebrew/homebrew#8067.

Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>

Formula/qcachegrind.rb

@@ -0,0 +1,26 @@
+require 'formula'
+
+class Qcachegrind < Formula
+  url 'http://kcachegrind.sourceforge.net/kcachegrind-0.7.0.tar.gz'
+  homepage 'http://kcachegrind.sourceforge.net/'
+  md5 '0001385bbc630afa353619de8768e946'
+
+  depends_on 'graphviz' => :optional
+
+  def install
+    qt = Formula.factory 'qt'
+    unless (qt.lib + 'Qt3Support.framework').exist?
+      onoe 'QCachegrind requires Qt3Support. `brew install qt --with-qt3support`'
+      exit 1
+    end
+
+    cd 'qcachegrind'
+    system 'qmake -spec macx-g++ -config release'
+    system 'make'
+    bin.install 'qcachegrind.app/Contents/MacOS/qcachegrind'
+  end
+
+  def test
+    system 'qcachegrind'
+  end
+end