X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Funiwidth.in.h;h=e8067443350e9ecd9770b4337a034d89d8007cf8;hb=6f9dd7d3ecceb8a939ea537b6d9abc9988bc4c71;hp=d48a775461d59c718ad2fdbce258b9d03857836b;hpb=1495c20d059a7bf8cae0ad51bc576f4c458674e1;p=gnulib.git

diff --git a/lib/uniwidth.in.h b/lib/uniwidth.in.h
index d48a77546..e80674433 100644
--- a/lib/uniwidth.in.h
+++ b/lib/uniwidth.in.h
@@ -1,5 +1,5 @@
 /* Display width functions.
-   Copyright (C) 2001-2002, 2005, 2007, 2009-2010 Free Software Foundation,
+   Copyright (C) 2001-2002, 2005, 2007, 2009-2011 Free Software Foundation,
    Inc.
 
    This program is free software: you can redistribute it and/or modify it
@@ -38,7 +38,11 @@ extern "C" {
 
 /* Determine number of column positions required for UC.  */
 extern int
-       uc_width (ucs4_t uc, const char *encoding);
+       uc_width (ucs4_t uc, const char *encoding)
+#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+       __attribute__ ((__pure__))
+#endif
+       ;
 
 /* Determine number of column positions required for first N units
    (or fewer if S ends before this) in S.  */