Convert mandoc to LIBADD

While here remove the ugly LDMANDOC

share/mk/src.libnames.mk

@@ -21,7 +21,7 @@ _PRIVATELIBS=	\
 		ucl \
 		unbound
 _INTERNALIBS=	\
-		libmandoc \
+		mandoc \
 		ohash \
 		readline \
 		sm
@@ -237,7 +237,6 @@ LDSQLITE3?=	${LIBSQLITE3DIR}/libsqlite3.so
 LIBSQLITE3?=	${LIBSQLITE3DIR}/libsqlite3.a
 
 LIBMANDOCDIR=	${ROOTOBJDIR}/lib/libmandoc
-LDMANDOC?=	${LIBMANDOCDIR}/libmandoc.a
 LIBMANDOC?=	${LIBMANDOCDIR}/libmandoc.a
 
 LIBSMDIR=	${ROOTOBJDIR}/lib/libsm

usr.bin/mandoc/Makefile

@@ -1,7 +1,6 @@
 # $FreeBSD$
 
 MDOCMLDIR=	${.CURDIR}/../../contrib/mdocml
-LIBMANDOC=	${.OBJDIR}/../../lib/libmandoc/libmandoc.a
 .PATH: ${MDOCMLDIR}
 
 PROG=	mandoc
@@ -33,7 +32,6 @@ SRCS=		${HTML_SRCS} \
 
 WARNS?=	3
 CFLAGS+= -DHAVE_CONFIG_H
-DPADD=	${LIBMANDOC}
-LDADD=	${LIBMANDOC}
+LIBADD=	mandoc
 
 .include <bsd.prog.mk>