try gyp fix

tools/gyp/pylib/gyp/input.py

@@ -1245,19 +1245,22 @@ def ProcessConditionsInDict(the_dict, phase, variables, build_file):
     # Unhook the conditions list, it's no longer needed.
     del the_dict[conditions_key]
 
+    variables_copy = variables.copy()
+
     for condition in conditions_list:
         merge_dict = EvalCondition(
-            condition, conditions_key, phase, variables, build_file
+            condition, conditions_key, phase, variables_copy, build_file
         )
 
         if merge_dict is not None:
-            # Expand variables and nested conditinals in the merge_dict before
+            # Expand variables and nested conditionals in the merge_dict before
             # merging it.
             ProcessVariablesAndConditionsInDict(
-                merge_dict, phase, variables, build_file
+                merge_dict, phase, variables_copy, build_file
             )
 
             MergeDicts(the_dict, merge_dict, build_file, build_file)
+            LoadAutomaticVariablesFromDict(variables_copy, the_dict)
 
 
 def LoadAutomaticVariablesFromDict(variables, the_dict):