Backport to autoconf 2.13.

m4/uintmax_t.m4

@@ -1,8 +1,8 @@
-#serial 4
+#serial 5
 
 dnl From Paul Eggert.
 
-AC_PREREQ(2.14a)
+AC_PREREQ(2.13)
 
 # Define uintmax_t to `unsigned long' or `unsigned long long'
 # if <inttypes.h> does not exist.
@@ -16,7 +16,7 @@ AC_DEFUN(jm_AC_TYPE_UINTMAX_T,
       && ac_type='unsigned long long' \
       || ac_type='unsigned long'
     AC_DEFINE_UNQUOTED(uintmax_t, $ac_type,
-[  Define to `unsigned long' or `unsigned long long'
+[  Define to unsigned long or unsigned long long
    if <inttypes.h> doesn't define.])
   fi
 ])