xstrcasecmp: conform to C89 pointer rules

1 files changed, 2 insertions, 2 deletions

diff --git a/src/image.c b/src/image.c
index 8303fac4c98..717d41eb91b 100644
--- a/src/image.c
+++ b/src/image.c
@@ -3906,7 +3906,7 @@ xpm_load_image (struct frame *f,
 
   while (num_colors-- > 0)
     {
-      unsigned char *color, *max_color;
+      char *color, *max_color;
       int key, next_key, max_key = 0;
       Lisp_Object symbol_color = Qnil, color_val;
       XColor cdef;
@@ -3958,7 +3958,7 @@ xpm_load_image (struct frame *f,
 
           if (CONSP (specified_color) && STRINGP (XCDR (specified_color)))
             {
-              if (xstrcasecmp (SDATA (XCDR (specified_color)), "None") == 0)
+              if (xstrcasecmp (SSDATA (XCDR (specified_color)), "None") == 0)
                 color_val = Qt;
               else if (x_defined_color (f, SDATA (XCDR (specified_color)),
                                         &cdef, 0))