Add a new warning -Wmissing-variable-declarations, to warn about variables

defined without a previous declaration.  This is similar to
-Wmissing-prototypes, but for variables instead of functions.

Patch by Ed Schouten.

llvm-svn: 166498

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index eef5a2694a5..c7d378f1ac0 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -665,6 +665,8 @@ void Sema::ActOnEndOfTranslationUnit() {
                                    diag::err_tentative_def_incomplete_type))
       VD->setInvalidDecl();
 
+    CheckCompleteVariableDeclaration(VD);
+
     // Notify the consumer that we've completed a tentative definition.
     if (!VD->isInvalidDecl())
       Consumer.CompleteTentativeDefinition(VD);