1 files changed, 11 insertions, 0 deletions

diff --git a/src/coding.h b/src/coding.h
index 0c03d1a44ed..619ca29c8e4 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -695,6 +695,7 @@ extern Lisp_Object raw_text_coding_system (Lisp_Object);
 extern bool raw_text_coding_system_p (struct coding_system *);
 extern Lisp_Object coding_inherit_eol_type (Lisp_Object, Lisp_Object);
 extern Lisp_Object complement_process_encoding_system (Lisp_Object);
+extern Lisp_Object make_string_from_utf8 (const char *, ptrdiff_t);
 
 extern void decode_coding_gap (struct coding_system *,
                                ptrdiff_t, ptrdiff_t);
@@ -762,6 +763,16 @@ surrogates_to_codepoint (int low, int high)
   return 0x10000 + (low - 0xDC00) + ((high - 0xD800) * 0x400);
 }
 
+/* Like build_string, but always returns a multibyte string, and is
+   optimized for speed when STR is a UTF-8 encoded text string.  */
+
+INLINE Lisp_Object
+build_string_from_utf8 (const char *str)
+{
+  return make_string_from_utf8 (str, strlen (str));
+}
+
+
 extern Lisp_Object preferred_coding_system (void);
 
 /* Coding system to be used to encode text for terminal display when