Rework privatelib/internallib

Make sure everything linking to a privatelib and/or an internallib does it directly
from the OBJDIR rather than DESTDIR.
Add src.libnames.mk so bsd.libnames.mk is not polluted by libraries not existsing
in final installation
Introduce the LD* variable which is what ld(1) is expecting (via LDADD) to link to
internal/privatelib
Directly link to the .so in case of private library to avoid having to complexify
LDFLAGS.

Phabric:	https://phabric.freebsd.org/D553
Reviewed by:	imp, emaste

kerberos5/lib/libkrb5/Makefile

@@ -3,7 +3,7 @@
 LIB=	krb5
 LDFLAGS=	-Wl,--no-undefined
 VERSION_MAP= ${KRB5DIR}/lib/krb5/version-script.map
-LDADD=	-lasn1 -lcom_err -lcrypt -lcrypto -lhx509 -lroken -lwind -lheimbase -lheimipcc
+LDADD=	-lasn1 -lcom_err -lcrypt -lcrypto -lhx509 -lroken -lwind -lheimbase ${LDHEIMIPCC}
 DPADD=	${LIBASN1} ${LIBCOM_ERR} ${LIBCRYPT} ${LIBCRYPTO} ${LIBHX509} ${LIBROKEN} ${LIBWIND} ${LIBHEIMBASE} ${LIBHEIMIPCC}
 USEPRIVATELIB= heimipcc
 

kerberos5/libexec/digest-service/Makefile

@@ -10,7 +10,7 @@ CFLAGS+=	-I${KRB5DIR}/kdc \
 		-I${KRB5DIR}/lib/roken
 DPADD=	${LIBHDB} ${LIBKDC} ${LIBHEIMIPCS} ${LIBKRB5} ${LIBROKEN} ${LIBASN1} \
 	${LIBCRYPTO} ${LIBCRYPT} ${LIBVERS}
-LDADD=	-lhdb -lkdc -lheimipcs -lkrb5 -lroken -lasn1 -lcrypto -lcrypt \
+LDADD=	-lhdb -lkdc ${LDHEIMIPCS} -lkrb5 -lroken -lasn1 -lcrypto -lcrypt \
 	${LIBVERS} -lheimntlm
 USEPRIVATELIB= heimipcs
 

kerberos5/libexec/kcm/Makefile

@@ -21,7 +21,7 @@ CFLAGS+=-I${KRB5DIR}/lib/krb5 -I${KRB5DIR}/lib/asn1 -I${KRB5DIR}/lib/roken \
 	-I${KRB5DIR}/kcm -I${KRB5DIR}/lib/ipc ${LDAPCFLAGS}
 DPADD=	${LIBHDB} ${LIBKRB5} ${LIBROKEN} ${LIBASN1} ${LIBHEIMNTLM} \
 	${LIBHEIMIPCS} ${LIBCRYPTO} ${LIBCRYPT} ${LIBVERS} ${LDAPDPADD}
-LDADD=	-lhdb -lkrb5 -lroken -lasn1 -lheimntlm -lheimipcs \
+LDADD=	-lhdb -lkrb5 -lroken -lasn1 -lheimntlm ${LDHEIMIPCS} \
 	-lcrypto -lcrypt ${LIBVERS} ${LDAPLDADD}
 USEPRIVATELIB= heimipcs
 LDFLAGS=${LDAPLDFLAGS}