Patch to make VS happier, thanks to Morten Ofstad for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16956 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/FileLexer.l b/utils/TableGen/FileLexer.l
index d684040..08daf2f 100644
--- a/utils/TableGen/FileLexer.l
+++ b/utils/TableGen/FileLexer.l
@@ -147,7 +147,7 @@
/// files. Switch back to an includer if an includee has run out of input.
///
extern "C"
-int yywrap() {
+int yywrap(void) {
if (IncludeStack.back().File != stdin)
fclose(IncludeStack.back().File);
IncludeStack.pop_back();