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-rw-r--r--lib/Frontend/CompilerInvocation.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 02a5088f93..05b3377b3e 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -1048,6 +1048,7 @@ static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
+ Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
}
static void ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,