Test pythia8 warnings

git-svn-id: svn+ssh://svn.cern.ch/reps/lcgsoft/trunk/lcgcmake@7450 4525493e-7705-40b1-a816-d608a930855b

generators/patches/pythia8-209.patch

+--- src/Pythia.cc       2015-05-29 13:03:18.000000000 +0200
++++ src/Pythia.cc   2015-05-29 13:03:01.000000000 +0200
+@@ -54,6 +54,7 @@
+   pdfHardBPtr     = 0;
+   pdfPomAPtr      = 0;
+   pdfPomBPtr      = 0;
++  double unused = 123456;
+ 
+   // Initial values for pointers to Les Houches Event objects.
+   doLHA           = false;
+