1 files changed, 17 insertions, 0 deletions
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index ccf8bff..321de40 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -236,6 +236,19 @@ typedef CPPCHAR_SIGNED_T cppchar_signed_t;
 /* Style of header dependencies to generate.  */
 enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM };
 
+/* The possible normalization levels, from most restrictive to least.  */
+enum cpp_normalize_level {
+  /* In NFKC.  */
+  normalized_KC = 0,
+  /* In NFC.  */
+  normalized_C,
+  /* In NFC, except for subsequences where being in NFC would make
+     the identifier invalid.  */
+  normalized_identifier_C,
+  /* Not normalized at all.  */
+  normalized_none
+};
+
 /* This structure is nested inside struct cpp_reader, and
    carries all the options visible to the command line.  */
 struct cpp_options
@@ -373,6 +386,10 @@ struct cpp_options
   /* Holds the name of the input character set.  */
   const char *input_charset;
 
+  /* The minimum permitted level of normalization before a warning
+     is generated.  */
+  enum cpp_normalize_level warn_normalize;
+
   /* True to warn about precompiled header files we couldn't use.  */
   bool warn_invalid_pch;