Milter-greylist

>         Support glob(7) pattern matching for properties
> 

I got:

cc -g -I/usr/local/src/sendmail/libmilter/include -DUSE_SPAMD -DHAVE_DATA_CALLBACK -pthread -D_XOPEN_SOURCE=500 -D_OSF_SOURCE -DCONFFILE=\"/etc/mail/greylist.conf\" -DDUMPFILE=\"/var/milter-greylist/greylist.db\" -D_BSD_SOURCE -I. -I.  -c prop.c
cc: Error: prop.c, line 200: In this statement, "FNM_CASEFOLD" is not declared. (undeclared)
		if (fnmatch(up->up_value, string, FNM_CASEFOLD) == 0) {
--------------------------------------------------^
*** Exit 1
Stop.

From "man fnmatch" on Linux:

CONFORMING TO
       POSIX.2.  The FNM_FILE_NAME, FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions.

Is everybody having that GNU extension (including BSD),
only my old Tru64 UNIX misses it?