FindHDF5: unset some variables

prefixed some local variables with _hdf5 and unset them at the end
(still more of these to do)

Modules/FindHDF5.cmake

@@ -492,33 +492,35 @@ if(NOT HDF5_FOUND AND NOT HDF5_NO_FIND_PACKAGE_CONFIG_FILE)
             endif()
             # Find library for this target. Complicated as on Windows with a DLL, we need to search for the import-lib.
             _HDF5_select_imported_config(${HDF5_${_lang}_TARGET}${_suffix} _hdf5_imported_conf)
-            get_target_property(_lang_location ${HDF5_${_lang}_TARGET}${_suffix} IMPORTED_IMPLIB_${_hdf5_imported_conf} )
-            if (NOT _lang_location)
+            get_target_property(_hdf5_lang_location ${HDF5_${_lang}_TARGET}${_suffix} IMPORTED_IMPLIB_${_hdf5_imported_conf} )
+            if (NOT _hdf5_lang_location)
                 # no import lib, just try LOCATION
-                get_target_property(_lang_location ${HDF5_${_lang}_TARGET}${_suffix} LOCATION_${_hdf5_imported_conf})
-                if (NOT _lang_location)
-                    get_target_property(_lang_location ${HDF5_${_lang}_TARGET}${_suffix} LOCATION)
+                get_target_property(_hdf5_lang_location ${HDF5_${_lang}_TARGET}${_suffix} LOCATION_${_hdf5_imported_conf})
+                if (NOT _hdf5_lang_location)
+                    get_target_property(_hdf5_lang_location ${HDF5_${_lang}_TARGET}${_suffix} LOCATION)
                 endif()
             endif()
-            if( _lang_location )
-                set(HDF5_${_lang}_LIBRARY ${_lang_location})
+            if( _hdf5_lang_location )
+                set(HDF5_${_lang}_LIBRARY ${_hdf5_lang_location})
                 list(APPEND HDF5_LIBRARIES ${HDF5_${_lang}_TARGET}${_suffix})
                 set(HDF5_${_lang}_LIBRARIES ${HDF5_${_lang}_TARGET}${_suffix})
                 set(HDF5_${_lang}_FOUND True)
             endif()
             if(FIND_HL)
                 get_target_property(__lang_hl_location ${HDF5_${_lang}_HL_TARGET}${_suffix} IMPORTED_IMPLIB_${_hdf5_imported_conf} )
-                if (NOT _lang_hl_location)
-                    get_target_property(_lang_hl_location ${HDF5_${_lang}_HL_TARGET}${_suffix} LOCATION)
+                if (NOT _hdf5_lang_hl_location)
+                    get_target_property(_hdf5_lang_hl_location ${HDF5_${_lang}_HL_TARGET}${_suffix} LOCATION)
                 endif()
-                if( _lang_hl_location )
-                    set(HDF5_${_lang}_HL_LIBRARY ${_lang_hl_location})
+                if( _hdf5_lang_hl_location )
+                    set(HDF5_${_lang}_HL_LIBRARY ${_hdf5_lang_hl_location})
                     list(APPEND HDF5_HL_LIBRARIES ${HDF5_${_lang}_TARGET}${_suffix})
                     set(HDF5_${_lang}_HL_LIBRARIES ${HDF5_${_lang}_TARGET}${_suffix})
                     set(HDF5_HL_FOUND True)
                 endif()
+                unset(_hdf5_lang_hl_location)
             endif()
-            unset( _hdf5_imported_conf)
+            unset(_hdf5_imported_conf)
+            unset(_hdf5_lang_location)
         endforeach()
     endif()
 endif()