Fix CMake for BORNAGAIN_PYTHON=OFF (but make is broken)

CMakeLists.txt

@@ -211,7 +211,11 @@ add_subdirectory(Fit/3rdparty)
 add_subdirectory(Fit)
 
 # other components
-set(CoreComponents "PyCore;Base;Param;Sample;Resample;Device;Sim")
+set(CoreComponents "Base")
+if (BORNAGAIN_PYTHON)
+    set(CoreComponents "${CoreComponents};PyCore")
+endif()
+set(CoreComponents "${CoreComponents};Param;Sample;Resample;Device;Sim")
 set(AllComponents "${CoreComponents};Img3D;GUI")
 
 # code analysis
@@ -267,8 +271,8 @@ endif()
 add_subdirectory(Doc/man)
 if(BORNAGAIN_PYTHON) # required for examples
     add_subdirectory(hugo)
+    add_subdirectory(Doc/graph)
 endif()
-add_subdirectory(Doc/graph)
 if(CONFIGURE_DOXY)
     add_subdirectory(Doc/Doxygen)
 endif()