Added extra code to deal with root 6.20/6.22 incompatibility

pcm files are named slightly differently in 6.22 version 6.20, which lead to issues with the install command. I added code to check the root version and do the appropriate install.

src/GenericDetectors/pid/sdet/CMakeLists.txt

@@ -49,8 +49,16 @@ install(TARGETS DDG4_PIDsdet
   DESTINATION lib)
 install(FILES  ${sdet_headers} 
   DESTINATION include/npdet)
-install(FILES   ${CMAKE_CURRENT_BINARY_DIR}/G__DDG4_PIDsdet_rdict.pcm
-  DESTINATION lib)
+
+if (${ROOT_VERSION} VERSION_LESS 6.22.0)
+  install(
+    FILES ${CMAKE_CURRENT_BINARY_DIR}/G__DDG4_PIDsdet_rdict.pcm
+    DESTINATION lib)
+else()
+  install(
+    FILES ${CMAKE_CURRENT_BINARY_DIR}/libDDG4_PIDsdet_rdict.pcm
+    DESTINATION lib)
+endif()
 
   # # Geant4 material scan. From position=0,0,0 to end-of-world 
   # dd4hep_add_test_reg( DDG4_PIDsdet_g4material_scan_SiliconBlock_LONGTEST