diff -urN mp-3.3.9.orig/gnu_regex.c mp-3.3.9/gnu_regex.c
--- mp-3.3.9.orig/gnu_regex.c	2004-12-21 11:51:05.000000000 -0500
+++ mp-3.3.9/gnu_regex.c	2004-12-21 12:06:50.974403033 -0500
@@ -1635,10 +1635,12 @@
               if (syntax & RE_NO_BK_PARENS) goto normal_backslash;
 
               if (COMPILE_STACK_EMPTY)
+		{
                 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
                   goto normal_backslash;
                 else
                   return REG_ERPAREN;
+		}
 
             handle_close:
               if (fixup_alt_jump)
@@ -1655,10 +1657,12 @@
 
               /* See similar code for backslashed left paren above.  */
               if (COMPILE_STACK_EMPTY)
+		{
                 if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
                   goto normal_char;
                 else
                   return REG_ERPAREN;
+		}
 
               /* Since we just checked for an empty stack above, this
                  ``can't happen''.  */
@@ -3843,7 +3847,7 @@
 		/* Compare that many; failure if mismatch, else move
                    past them.  */
 		if (translate 
-                    ? bcmp_translate (d, d2, mcnt, translate) 
+                    ? bcmp_translate ((unsigned char *)d, (unsigned char *)d2, mcnt, translate) 
                     : bcmp (d, d2, mcnt))
 		  goto fail;
 		d += mcnt, d2 += mcnt;