X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/9792a944dcf08a246bf2618b2a5bee906a888069..e6013e8c8f3de0ca39c17a2da95346b4a320e6d0:/src/regex.h

diff --git a/src/regex.h b/src/regex.h
index 3dfecf0a7e..c89ca46d4b 100644
--- a/src/regex.h
+++ b/src/regex.h
@@ -603,7 +603,9 @@ typedef wchar_t re_wchar_t;
 # define re_wctype_to_bit(cc) 0
 #else
 # define CHAR_CLASS_MAX_LENGTH  9 /* Namely, `multibyte'.  */
-# define btowc(c) c
+# ifndef emacs
+#  define btowc(c) c
+# endif
 
 /* Character classes.  */
 typedef enum { RECC_ERROR = 0,