Avoid race condition between tutorial/roofit/rf512_wsfactory_oper.C

and tutorial/roofit/rf512_wsfactory_oper.py

When run in parallel they delete eachother's files:

cc1plus: fatal error: /builddir/build/BUILD/root-6.26.08/redhat-linux-build/runtutorials/RooCFAuto000Pdf_cxx_ACLiC_dict.cxx: No such file or directory
compilation terminated.
/usr/bin/ld: cannot find /builddir/build/BUILD/root-6.26.08/redhat-linux-build/runtutorials/RooCFAuto000Pdf_cxx_ACLiC_dict.o: No such file or directory
collect2: error: ld returned 1 exit status

tutorials/CMakeLists.txt

@@ -483,7 +483,7 @@ set(hist-hbars-depends  tutorial-tree-cernbuild)
 set(benchmarks-depends tutorial-hsimple
                        tutorial-fit-fit1
                        tutorial-fit-myfit
-					   tutorial-hist-h1ReadAndDraw
+                       tutorial-hist-h1ReadAndDraw
                        tutorial-hist-FirstContour
                        tutorial-geom-na49view
                        tutorial-tree-ntuple1
@@ -731,14 +731,15 @@ if(ROOT_pyroot_FOUND)
   set(pyroot-benchmarks-depends tutorial-pyroot-hsimple-py
                                 tutorial-pyroot-fit1-py
                                 tutorial-pyroot-na49view-py
-								tutorial-pyroot-h1ReadAndDraw-py
+                                tutorial-pyroot-h1ReadAndDraw-py
                                 tutorial-pyroot-ntuple1-py)
   set(pyroot-fit1-depends tutorial-pyroot-fillrandom-py)
   set(pyroot-na49view-depends tutorial-pyroot-geometry-py)
   set(roofit-rf503_wspaceread-depends tutorial-roofit-rf502_wspacewrite-py)
 
   # Avoid a race condition: make sure Python tutorial is ran after C++ tutorial
   set(roofit-rf104_classfactory-depends tutorial-roofit-rf104_classfactory)
+  set(roofit-rf512_wsfactory_oper-depends tutorial-roofit-rf512_wsfactory_oper)
 
   #----------------------------------------------------------------------
   # List requirements for python tutorials.