(compile_range): Avoid warning in casts for range_start/end.

diff --git a/src/regex.c b/src/regex.c
index 88ccc69a208c7b8814cc6bd03facc406c94b0351..82ab3d0873ca299e9cd4419e646f1afaae877423 100644 (file)
--- a/src/regex.c
+++ b/src/regex.c
@@ -2706,8 +2706,8 @@ compile_range (p_ptr, pend, translate, syntax, b)
 
      We also want to fetch the endpoints without translating them; the 
      appropriate translation is done in the bit-setting loop below.  */
-  range_start = ((unsigned char *) p)[-2];
-  range_end   = ((unsigned char *) p)[0];
+  range_start = ((unsigned const char *) p)[-2];
+  range_end   = ((unsigned const char *) p)[0];
 
   /* Have to increment the pointer into the pattern string, so the
      caller isn't still at the ending character.  */