Add libbz2 to provide Bzip2 capabilities to the system.

lib/Makefile

@@ -22,7 +22,7 @@
 
 SUBDIR=	${_csu} libcom_err libcrypt msun libmd \
 	libncurses libradius libskey libtacplus libutil libsbuf \
-	${_compat} libalias libatm ${_libbind} libc ${_libc_r} libcalendar \
+	${_compat} libalias libatm ${_libbind} libbz2 libc ${_libc_r} libcalendar \
 	libcam libcompat libdevinfo libdevstat libdisk libedit libfetch \
 	libform libftpio libgnumalloc ${_libio} libipsec libipx libisc libkvm \
 	libmenu ${_libncp} \

lib/libbz2/Makefile

@@ -0,0 +1,20 @@
+# $FreeBSD$
+
+MAINTAINER=obrien@FreeBSD.org
+
+BZ2DIR=	${.CURDIR}/../../contrib/bzip2
+.PATH: ${BZ2DIR}
+
+LIB=		bz2
+SHLIB_MAJOR=	1
+SHLIB_MINOR=	0
+SRCS=		bzlib.c blocksort.c compress.c crctable.c decompress.c \
+		huffman.c randtable.c
+INCS=		bzlib.h
+CFLAGS+=	-I${BZ2DIR}
+
+beforeinstall:
+	${INSTALL} -C -o ${BINOWN} -g ${BINGRP} -m 444 ${BZ2DIR}/bzlib.h \
+	    ${DESTDIR}/usr/include
+
+.include <bsd.lib.mk>