BUG: Make sure context info is always initialized

This adds a missing default constructor to cmListFileContext that makes
sure the line number is initialized to zero.  A zero line number will
indicate a generated context.

1 files changed, 1 insertions, 0 deletions

diff --git a/Source/cmListFileCache.h b/Source/cmListFileCache.h
index b5d8a05..ac6e023 100644
--- a/Source/cmListFileCache.h
+++ b/Source/cmListFileCache.h
@@ -55,6 +55,7 @@ struct cmListFileContext
   std::string Name;
   std::string FilePath;
   long Line;
+  cmListFileContext(): Name(), FilePath(), Line(0) {}
 };
 
 std::ostream& operator<<(std::ostream&, cmListFileContext const&);