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-rw-r--r--clang/lib/Lex/PPDirectives.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp
index 2dfb6233bdf..502da738425 100644
--- a/clang/lib/Lex/PPDirectives.cpp
+++ b/clang/lib/Lex/PPDirectives.cpp
@@ -1066,8 +1066,11 @@ void Preprocessor::HandleIncludeDirective(Token &IncludeTok,
return;
}
- // Verify that there is nothing after the filename, other than EOM.
- CheckEndOfDirective(IncludeTok.getIdentifierInfo()->getName());
+ // Verify that there is nothing after the filename, other than EOM. Note that
+ // we allow macros that expand to nothing after the filename, because this
+ // falls into the category of "#include pp-tokens new-line" specified in
+ // C99 6.10.2p4.
+ CheckEndOfDirective(IncludeTok.getIdentifierInfo()->getName(), true);
// Check that we don't have infinite #include recursion.
if (IncludeMacroStack.size() == MaxAllowedIncludeStackDepth-1) {
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