diff --git a/kerberos5/Makefile.inc b/kerberos5/Makefile.inc
--- a/kerberos5/Makefile.inc
+++ b/kerberos5/Makefile.inc
@@ -9,8 +9,7 @@
 CFLAGS+=	-DHAVE_CONFIG_H -I${.CURDIR:H:H}/include
 
 WARNS?=		1
-CWARNFLAGS.clang+=	-Wno-error=absolute-value
-CWARNFLAGS+=	-Wno-error=deprecated-declarations
+CWARNFLAGS.clang+=	-Wno-absolute-value
 
 .if ${MK_OPENLDAP} != "no" && !defined(COMPAT_32BIT)
 OPENLDAPBASE?=	/usr/local
diff --git a/kerberos5/libexec/kcm/Makefile b/kerberos5/libexec/kcm/Makefile
--- a/kerberos5/libexec/kcm/Makefile
+++ b/kerberos5/libexec/kcm/Makefile
@@ -19,6 +19,8 @@
 
 CFLAGS+=-I${KRB5DIR}/lib/krb5 -I${KRB5DIR}/lib/asn1 -I${KRB5DIR}/lib/roken \
 	-I${KRB5DIR}/kcm -I${KRB5DIR}/lib/ipc ${LDAPCFLAGS}
+# Avoid errors for using deprecated krb5_* APIs
+CFLAGS+="-DKRB5_DEPRECATED_FUNCTION(X)="
 LIBADD=	krb5 roken heimntlm heimipcs crypto
 DPADD=	${LDAPDPADD}
 LDADD=	${LIBVERS} ${LDAPLDADD}