1 files changed, 4 insertions, 0 deletions

diff --git a/src/coding.h b/src/coding.h
index a0732305ada..3d9e143ff3d 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -636,6 +636,10 @@ extern int code_convert_region P_ ((int, int, int, int, struct coding_system *,
 extern Lisp_Object run_pre_post_conversion_on_str P_ ((Lisp_Object,
                                                        struct coding_system *,
                                                        int));
+extern void run_pre_write_conversin_on_c_str P_ ((unsigned char **, int *, 
+                                                  int, int,
+                                                  struct coding_system *));
+
 extern int decoding_buffer_size P_ ((struct coding_system *, int));
 extern int encoding_buffer_size P_ ((struct coding_system *, int));
 extern void detect_coding P_ ((struct coding_system *, const unsigned char *,