Genex: Don't segfault on $<FOO,>

Treat the comma as part of the identifier here. It will later not
resolve to a generator expression and the user gets a proper error
message.

1 files changed, 9 insertions, 1 deletions

diff --git a/Source/cmGeneratorExpressionParser.cxx b/Source/cmGeneratorExpressionParser.cxx
index 7a8fc51..a619cec 100644
--- a/Source/cmGeneratorExpressionParser.cxx
+++ b/Source/cmGeneratorExpressionParser.cxx
@@ -88,7 +88,15 @@ void cmGeneratorExpressionParser::ParseGeneratorExpression(
   while(this->it->TokenType != cmGeneratorExpressionToken::EndExpression
       && this->it->TokenType != cmGeneratorExpressionToken::ColonSeparator)
     {
-    this->ParseContent(identifier);
+    if (this->it->TokenType == cmGeneratorExpressionToken::CommaSeparator)
+      {
+      extendText(identifier, this->it);
+      ++this->it;
+      }
+    else
+      {
+      this->ParseContent(identifier);
+      }
     if (this->it == this->Tokens.end())
       {
       break;