nss does not build on mips with clang because wrong types are used?

pqg.c:339:16: error: comparison of constant 18446744073709551615 with expression of type 'unsigned long' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
     if (addend < MP_DIGIT_MAX) {
       ~~~~~~ ^ ~~~~~~~~~~~~

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Upstream-Status: Pending
Index: nss-3.37.1/nss/lib/freebl/pqg.c
===================================================================
--- nss-3.37.1.orig/nss/lib/freebl/pqg.c
+++ nss-3.37.1/nss/lib/freebl/pqg.c
@@ -326,8 +326,8 @@ generate_h_candidate(SECItem *hit, mp_in
 
 static SECStatus
 addToSeed(const SECItem *seed,
-          unsigned long addend,
-          int seedlen, /* g in 186-1 */
+          unsigned long long  addend,
+          int                 seedlen, /* g in 186-1 */
           SECItem *seedout)
 {
     mp_int s, sum, modulus, tmp;