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-rw-r--r--lib/Lex/ModuleMap.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Lex/ModuleMap.cpp b/lib/Lex/ModuleMap.cpp
index d44bf124ff..13d2b728f5 100644
--- a/lib/Lex/ModuleMap.cpp
+++ b/lib/Lex/ModuleMap.cpp
@@ -523,7 +523,7 @@ void ModuleMap::diagnoseHeaderInclusion(Module *RequestingModule,
// At this point, only non-modular includes remain.
- if (LangOpts.ModulesStrictDeclUse) {
+ if (RequestingModule && LangOpts.ModulesStrictDeclUse) {
Diags.Report(FilenameLoc, diag::err_undeclared_use_of_module)
<< RequestingModule->getTopLevelModule()->Name << Filename;
} else if (RequestingModule && RequestingModuleIsModuleInterface &&