--- a/lib/libdwarf/Makefile	
+++ a/lib/libdwarf/Makefile	
@@ -21,6 +21,7 @@ SRCS=	\
 INCS=	dwarf.h libdwarf.h
 
 CFLAGS+=	-I${.CURDIR}
+CFLAGS+=	-I${.CURDIR}/../libelf
 
 SHLIB_MAJOR=	3
 
--- a/lib/libproc/Makefile	
+++ a/lib/libproc/Makefile	
@@ -12,9 +12,13 @@ SRCS=	proc_bkpt.c		\
 INCS=	libproc.h
 
 CFLAGS+=	-I${.CURDIR}
+CFLAGS+=	-I${.CURDIR}/../libelf
 
 SHLIB_MAJOR=	2
 
 WITHOUT_MAN=
 
+LDADD+=		-lelf
+LDFLAGS+=	-L${.OBJDIR}/../libelf
+
 .include <bsd.lib.mk>
--- a/lib/librtld_db/Makefile	
+++ a/lib/librtld_db/Makefile	
@@ -10,5 +10,8 @@ SRCS=		rtld_db.c
 INCS=		rtld_db.h
 
 CFLAGS+= -I${.CURDIR}
+CFLAGS+= -I${.CURDIR}/../libelf
+LDADD+= -lutil -lproc
+LDFLAGS+= -L${.OBJDIR}/../libutil -L${.OBJDIR}/../libproc
 
 .include <bsd.lib.mk>