Update Formula: aqbanking. Version bump to 4.2.4

Signed-off-by: David Höppner <0xffea@gmail.com>

Formula/aqbanking.rb

@@ -1,9 +1,9 @@
 require 'formula'
 
 class Aqbanking <Formula
-  url 'http://www2.aquamaniac.de/sites/download/download.php?package=03&release=47&file=01&dummy=aqbanking-4.2.1.tar.gz'
+  url 'http://www2.aquamaniac.de/sites/download/download.php?package=03&release=50&file=01&dummy=aqbanking-4.2.4.tar.gz'
   homepage 'http://www.aqbanking.de/'
-  md5 'f017f85c6b5461383a584cf8e5ab41cf'
+  md5 '244f5c6e470b55452d9f2cb6c081c137'
 
   depends_on 'gmp'
   depends_on 'gwenhywfar'
@@ -12,6 +12,8 @@ class Aqbanking <Formula
  #depends_on 'qt3' # for gui frontends
 
   def install
+    # llvm results in a sigsegfault during compile
+    ENV.gcc_4_2
     configure_args = [
         "--prefix=#{prefix}",
         "--disable-debug",