Added two utility targets "secure" and "insecure", analogous to

"kerberize" and "dekerberize" in kerberos5/Makefile.  These can
be used to recompile bits with optional crypto support with and
without crypto, respectively.

Reviewed by:	markm

secure/Makefile

@@ -2,7 +2,7 @@
 
 SUBDIR= lib libexec usr.bin usr.sbin
 
-# These are programs which depend on crypto, but not Kerberos.
+# These are the programs which depend on crypto, but not Kerberos.
 SPROGS=	bin/ed usr.sbin/ppp usr.sbin/pppd usr.sbin/tcpdump/tcpdump \
 	lib/libfetch usr.bin/fetch usr.sbin/pkg_install \
 	lib/libpam \
@@ -11,4 +11,26 @@ SPROGS=	bin/ed usr.sbin/ppp usr.sbin/pppd usr.sbin/tcpdump/tcpdump \
 SPROGS+=usr.sbin/sendmail
 .endif
 
+# This target is used to rebuild these programs with crypto.
+secure:
+.for entry in ${SPROGS}
+	cd ${.CURDIR}/../${entry}; \
+	${MAKE} cleandir; \
+	${MAKE} obj; \
+	${MAKE} depend; \
+	${MAKE} all; \
+	${MAKE} install
+.endfor
+
+# This target is used to rebuild these programs without crypto.
+insecure:
+.for entry in ${SPROGS}
+	cd ${.CURDIR}/../${entry}; \
+	${MAKE} -DNOCRYPT cleandir; \
+	${MAKE} -DNOCRYPT obj; \
+	${MAKE} -DNOCRYPT depend; \
+	${MAKE} -DNOCRYPT all; \
+	${MAKE} -DNOCRYPT install
+.endfor
+
 .include <bsd.subdir.mk>