Revert r196372, "do not warn about unknown pragmas in modes that do not handle them (pr9537)"
It broke clang tests on some hosts with +Asserts. Seems "STDC" clashes.
llvm-svn: 196376
diff --git a/clang/lib/Rewrite/Frontend/InclusionRewriter.cpp b/clang/lib/Rewrite/Frontend/InclusionRewriter.cpp
index a3b6c49..176ea3f 100644
--- a/clang/lib/Rewrite/Frontend/InclusionRewriter.cpp
+++ b/clang/lib/Rewrite/Frontend/InclusionRewriter.cpp
@@ -518,7 +518,13 @@
InclusionRewriter *Rewrite = new InclusionRewriter(PP, *OS,
Opts.ShowLineMarkers);
PP.addPPCallbacks(Rewrite);
- PP.IgnorePragmas();
+ // Ignore all pragmas, otherwise there will be warnings about unknown pragmas
+ // (because there's nothing to handle them).
+ PP.AddPragmaHandler(new EmptyPragmaHandler());
+ // Ignore also all pragma in all namespaces created
+ // in Preprocessor::RegisterBuiltinPragmas().
+ PP.AddPragmaHandler("GCC", new EmptyPragmaHandler());
+ PP.AddPragmaHandler("clang", new EmptyPragmaHandler());
// First let the preprocessor process the entire file and call callbacks.
// Callbacks will record which #include's were actually performed.