cppcheck 1.69

Closes Homebrew/homebrew#41153.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Formula/cppcheck.rb

@@ -3,14 +3,8 @@ class Cppcheck < Formula
   homepage "http://sourceforge.net/apps/mediawiki/cppcheck/index.php?title=Main_Page"
 
   stable do
-    url "https://github.com/danmar/cppcheck/archive/1.68.tar.gz"
-    sha1 "f08ef07f750f92fafe4f960166072e9d1088d74e"
-
-    # Upstream patches for OS X + Clang compilation
-    patch do
-      url "https://github.com/danmar/cppcheck/commit/141a071.diff"
-      sha1 "4ccc8d814709d0e221c533a5556da4b1aa5fbead"
-    end
+    url "https://github.com/danmar/cppcheck/archive/1.69.tar.gz"
+    sha256 "6e54f0dc97cbcc6c742cef4ceb1ade7f20f88af713a19c7613dba1d78eed6363"
   end
 
   head "https://github.com/danmar/cppcheck.git"
@@ -29,8 +23,11 @@ class Cppcheck < Formula
   depends_on "pcre" if build.with? "rules"
   depends_on "qt" if build.with? "gui"
 
+  needs :cxx11
 
   def install
+    ENV.cxx11
+
     # Man pages aren't installed as they require docbook schemas.
 
     # Pass to make variables.