1 files changed, 4 insertions, 0 deletions
diff --git a/mk/pam.mk b/mk/pam.mk
index 65115d5d..15ffb546 100644
--- a/mk/pam.mk
+++ b/mk/pam.mk
@@ -1,6 +1,10 @@
+ifeq (${MKPAM},pam)
 LIBPAM?=	-lpam
 CPPFLAGS+=	-DHAVE_PAM
 LDADD+=		${LIBPAM}
 
 PAMDIR?=	/etc/pam.d
 PAMMODE?=	0644
+else ifneq (${MKPAM},)
+$(error if MKPAM is defined, it must be "pam")
+endif