getopt_ulflags -> getopt32.
It is impossible to formulate sane ABI based on
size of ulong because it can be 32-bit or 64-bit.
Basically it means that you cannot portably use
more that 32 option chars in one call anyway...
Make it explicit.
diff --git a/modutils/rmmod.c b/modutils/rmmod.c
index f87fb5e..ce239a2 100644
--- a/modutils/rmmod.c
+++ b/modutils/rmmod.c
@@ -44,7 +44,7 @@
 	unsigned int flags = O_NONBLOCK|O_EXCL;
 
 	/* Parse command line. */
-	n = bb_getopt_ulflags(argc, argv, "wfa");
+	n = getopt32(argc, argv, "wfa");
 	if((n & 1))	// --wait
 		flags &= ~O_NONBLOCK;
 	if((n & 2))	// --force