1 files changed, 6 insertions, 0 deletions
diff --git a/Source/cmGeneratorExpressionEvaluator.cxx b/Source/cmGeneratorExpressionEvaluator.cxx
index 34d4434..c1d1086 100644
--- a/Source/cmGeneratorExpressionEvaluator.cxx
+++ b/Source/cmGeneratorExpressionEvaluator.cxx
@@ -201,6 +201,8 @@ static const struct LowerCaseNode : public cmGeneratorExpressionNode
 {
   LowerCaseNode() {}
 
+  bool AcceptsArbitraryContentParameter() const { return true; }
+
   std::string Evaluate(const std::vector<std::string> &parameters,
                        cmGeneratorExpressionContext *,
                        const GeneratorExpressionContent *,
@@ -215,6 +217,8 @@ static const struct UpperCaseNode : public cmGeneratorExpressionNode
 {
   UpperCaseNode() {}
 
+  bool AcceptsArbitraryContentParameter() const { return true; }
+
   std::string Evaluate(const std::vector<std::string> &parameters,
                        cmGeneratorExpressionContext *,
                        const GeneratorExpressionContent *,
@@ -229,6 +233,8 @@ static const struct MakeCIdentifierNode : public cmGeneratorExpressionNode
 {
   MakeCIdentifierNode() {}
 
+  bool AcceptsArbitraryContentParameter() const { return true; }
+
   std::string Evaluate(const std::vector<std::string> &parameters,
                        cmGeneratorExpressionContext *,
                        const GeneratorExpressionContent *,