1 files changed, 16 insertions, 0 deletions
diff --git a/libcpp/errors.cc b/libcpp/errors.cc
index 5d8ceb9..ad45f61 100644
--- a/libcpp/errors.cc
+++ b/libcpp/errors.cc
@@ -350,3 +350,19 @@ cpp_errno_filename (cpp_reader *pfile, enum cpp_diagnostic_level level,
   return cpp_error_at (pfile, level, loc, "%s: %s", filename,
 		       xstrerror (errno));
 }
+
+cpp_auto_suppress_diagnostics::cpp_auto_suppress_diagnostics (cpp_reader *pfile)
+  : m_pfile (pfile), m_cb (pfile->cb.diagnostic)
+{
+  m_pfile->cb.diagnostic
+    = [] (cpp_reader *, cpp_diagnostic_level, cpp_warning_reason,
+	  rich_location *, const char *, va_list *)
+    {
+      return true;
+    };
+}
+
+cpp_auto_suppress_diagnostics::~cpp_auto_suppress_diagnostics ()
+{
+  m_pfile->cb.diagnostic = m_cb;
+}