fix warning when sizeof uchar_t is 8 bits

diff --git a/libc/misc/regex/regex_old.c b/libc/misc/regex/regex_old.c
index 85a1b8e..bb8aa76 100644 (file)
--- a/libc/misc/regex/regex_old.c
+++ b/libc/misc/regex/regex_old.c
@@ -3316,11 +3316,15 @@ PREFIX(regex_compile) (ARG_PREFIX(pattern), ARG_PREFIX(size), syntax, bufp)
                         PATFETCH (c);
                         if ((c == ':' && *p == ']') || p == pend)
                           break;
+#if CHAR_CLASS_MAX_LENGTH != 256
                        if (c1 < CHAR_CLASS_MAX_LENGTH)
                          str[c1++] = c;
                        else
                          /* This is in any case an invalid class name.  */
                          str[0] = '\0';
+#else
+                         str[c1++] = c;
+#endif
                       }
                     str[c1] = '\0';