Always treat 'main' as an extern "C" function, so that we detect

redeclarations of main appropriately rather than allowing it to be
overloaded. Also, disallowing declaring main as a template.

Fixes GCC DejaGNU g++.old-deja/g++.other/main1.C.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@117029 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/AST/Decl.cpp b/lib/AST/Decl.cpp
index 4898d6f2fc..5a1edbd0e6 100644
--- a/lib/AST/Decl.cpp
+++ b/lib/AST/Decl.cpp
@@ -1001,7 +1001,7 @@ bool FunctionDecl::isExternC() const {
       break;
   }
 
-  return false;
+  return isMain();
 }
 
 bool FunctionDecl::isGlobal() const {