Replace the GNU gzip with a slightly modified NetBSD gzip. The

NetBSD version is a feature-to-feature re-implementation of GNU
gzip using the freely-redistributable zlib and this version is
expected to be mostly bug-to-bug compatible with the GNU
implementation.

 - Because this is a piece of mature code and we want to make
   changes so it is added directly rather than importing to
   src/contrib.
 - Connect newly added code to src/usr.bin/ and rescue/rescue
   build.
 - Disconnect the GNU gzip code from build for now, they will
   be eventually removed completely.
 - Provide two new src.conf(5) knobs, WITHOUT_BZIP2_SUPPORT and
   WITHOUT_BZIP2.

Tested by:	kris (full exp-7 pointyhat build)
Approved by:	core (importing a 4-clause BSD licensed file)
Approved by:	re (adding new utility during -HEAD code slush)

1 files changed, 36 insertions, 0 deletions

diff --git a/usr.bin/gzip/Makefile b/usr.bin/gzip/Makefile
new file mode 100644
index 0000000..0125d61
--- /dev/null
+++ b/usr.bin/gzip/Makefile
@@ -0,0 +1,36 @@
+#	$NetBSD: Makefile,v 1.10 2006/05/12 02:01:15 mrg Exp $
+# $FreeBSD$
+
+.include <bsd.own.mk>
+
+PROG=		gzip
+MAN=		gzip.1 gzexe.1 zdiff.1 zforce.1 zgrep.1 zmore.1 znew.1
+
+DPADD=		${LIBZ}
+LDADD=		-lz
+WARNS?=		6
+
+.if ${MK_BZIP2_SUPPORT} != "no"
+DPADD+=		${LIBBZ2}
+LDADD+=		-lbz2
+.else
+CFLAGS+=	-DNO_BZIP2_SUPPORT
+.endif
+
+SCRIPTS=	gzexe zdiff zforce zgrep zmore znew
+
+MLINKS+=	gzip.1 gunzip.1 \
+		gzip.1 gzcat.1 \
+		gzip.1 zcat.1 \
+		zdiff.1 zcmp.1 \
+		zgrep.1 zegrep.1 \
+		zgrep.1 zfgrep.1
+
+LINKS+=		${BINDIR}/gzip ${BINDIR}/gunzip \
+		${BINDIR}/gzip ${BINDIR}/gzcat \
+		${BINDIR}/gzip ${BINDIR}/zcat \
+		${BINDIR}/zdiff ${BINDIR}/zcmp \
+		${BINDIR}/zgrep ${BINDIR}/zegrep \
+		${BINDIR}/zgrep ${BINDIR}/zfgrep
+
+.include <bsd.prog.mk>