Run hsimple.C macro instead of executable. Fix for ROOT-7878

CMakeLists.txt

@@ -229,16 +229,15 @@ endif(cxxmodules)
 if(NOT gnuinstall)   # TODO hsimple.root for gnuinstall
   add_custom_target(hsimple ALL DEPENDS tutorials/hsimple.root)
   add_dependencies(hsimple onepcm)
-  ROOT_EXECUTABLE(hsimple.exe test/hsimple.cxx NOINSTALL LIBRARIES RIO Tree Hist)
   if(WIN32)
     add_custom_command(OUTPUT tutorials/hsimple.root
-                       COMMAND set PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} && $<TARGET_FILE:hsimple.exe>
-                       WORKING_DIRECTORY tutorials DEPENDS Cling)
+                       COMMAND set PATH=${CMAKE_RUNTIME_OUTPUT_DIRECTORY} && 
+                               $<TARGET_FILE:root.exe> -l -q -b -n -x hsimple.C -e return
+                       WORKING_DIRECTORY tutorials DEPENDS root.exe Cling)
   else()
     add_custom_command(OUTPUT tutorials/hsimple.root
-                       COMMAND ${ld_library_path}=${CMAKE_LIBRARY_OUTPUT_DIRECTORY}:$ENV{${ld_library_path}}
-                               $<TARGET_FILE:hsimple.exe>
-                       WORKING_DIRECTORY tutorials DEPENDS Cling)
+                       COMMAND $<TARGET_FILE:root> -l -q -b -n -x hsimple.C -e return
+                       WORKING_DIRECTORY tutorials DEPENDS root Cling)
   endif()
   install(FILES ${CMAKE_BINARY_DIR}/tutorials/hsimple.root DESTINATION ${CMAKE_INSTALL_TUTDIR} COMPONENT tests)
 endif()