* macfns.c (validate_x_resource_name): Use SSET.

diff --git a/src/macfns.c b/src/macfns.c
index 04cedba..2b3ed8a 100644 (file)
--- a/src/macfns.c
+++ b/src/macfns.c
@@ -3114,7 +3114,7 @@ validate_x_resource_name ()
             || (c >= 'A' && c <= 'Z')
             || (c >= '0' && c <= '9')
             || c == '-' || c == '_'))
-       SREF (new, i) = '_';
+       SSET (new, i, '_');
     }
 }