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-rw-r--r--include/clang/Basic/LangOptions.def1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/clang/Basic/LangOptions.def b/include/clang/Basic/LangOptions.def
index 47db50c52b74..d944a9d78ab9 100644
--- a/include/clang/Basic/LangOptions.def
+++ b/include/clang/Basic/LangOptions.def
@@ -146,6 +146,7 @@ LANGOPT(Modules , 1, 0, "modules extension to C")
COMPATIBLE_LANGOPT(ModulesTS , 1, 0, "C++ Modules TS")
BENIGN_ENUM_LANGOPT(CompilingModule, CompilingModuleKind, 2, CMK_None,
"compiling a module interface")
+BENIGN_LANGOPT(CompilingPCH, 1, 0, "building a pch")
COMPATIBLE_LANGOPT(ModulesDeclUse , 1, 0, "require declaration of module uses")
BENIGN_LANGOPT(ModulesSearchAll , 1, 1, "searching even non-imported modules to find unresolved references")
COMPATIBLE_LANGOPT(ModulesStrictDeclUse, 1, 0, "requiring declaration of module uses and all headers to be in modules")