Genex: Track whether an expression depends on the 'head' target

1 files changed, 14 insertions, 0 deletions

diff --git a/Source/cmGeneratorExpressionEvaluator.cxx b/Source/cmGeneratorExpressionEvaluator.cxx
index 28879f1c59..7a53d65c92 100644
--- a/Source/cmGeneratorExpressionEvaluator.cxx
+++ b/Source/cmGeneratorExpressionEvaluator.cxx
@@ -840,6 +840,10 @@ getLinkedTargetsContent(
       {
       context->HadContextSensitiveCondition = true;
       }
+    if (cge->GetHadHeadSensitiveCondition())
+      {
+      context->HadHeadSensitiveCondition = true;
+      }
     }
   linkedTargetsContent =
     cmGeneratorExpression::StripEmptyListElements(linkedTargetsContent);
@@ -871,6 +875,10 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
     cmTarget const* target = context->HeadTarget;
     std::string propertyName = *parameters.begin();
 
+    if (parameters.size() == 1)
+      {
+      context->HadHeadSensitiveCondition = true;
+      }
     if (!target && parameters.size() == 1)
       {
       reportError(context, content->GetOriginalExpression(),
@@ -1190,6 +1198,10 @@ static const struct TargetPropertyNode : public cmGeneratorExpressionNode
         {
         context->HadContextSensitiveCondition = true;
         }
+      if (cge->GetHadHeadSensitiveCondition())
+        {
+        context->HadHeadSensitiveCondition = true;
+        }
       if (!linkedTargetsContent.empty())
         {
         result += (result.empty() ? "" : ";") + linkedTargetsContent;
@@ -1313,6 +1325,7 @@ static const struct CompileFeaturesNode : public cmGeneratorExpressionNode
           "not be used with add_custom_command or add_custom_target.");
       return std::string();
       }
+    context->HadHeadSensitiveCondition = true;
 
     typedef std::map<std::string, std::vector<std::string> > LangMap;
     static LangMap availableFeatures;
@@ -1446,6 +1459,7 @@ static const struct TargetPolicyNode : public cmGeneratorExpressionNode
       }
 
     context->HadContextSensitiveCondition = true;
+    context->HadHeadSensitiveCondition = true;
 
     for (size_t i = 1; i < cmArraySize(targetPolicyWhitelist); ++i)
       {