gaudi +optional

spack.yaml

@@ -13,11 +13,11 @@ spack:
     - emacs@27.2 toolkit=athena
     - fastjet@3.3.4
     - fmt@8.1.1 +shared cxxstd=17
-    - gaudi@36.5
+    - gaudi@36.5 +optional
     - geant4@10.7.3 cxxstd=17 +opengl +vecgeom +x11 +qt +threads
     - genfit@2.00.00
     - hepmc3@3.2.4 +python +rootio 
-    - heppdt@3.04.01
+    - heppdt@2.06.01
     - igprof@5.9.16
     - imagemagick@7.0.8-7
     - madx@5.08.01
@@ -30,8 +30,6 @@ spack:
     - python@3.10.4
     - py-numpy@1.22.3
     - py-pip@21.3.1
-    - py-setuptools@59.4.0
-    - py-wheel@0.37.0
     - qt@5.15.4 +opengl
     - root@6.26.02 cxxstd=17 
           +fftw +fortran +gdml +http +mlp +pythia8