# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-arch/gzip/gzip-1.3.5-r2.ebuild,v 1.9 2004/10/30 15:58:49 tgall Exp $

inherit eutils flag-o-matic

DESCRIPTION="Standard GNU compressor"
HOMEPAGE="http://www.gnu.org/software/gzip/gzip.html"
# This is also available from alpha.gnu.org, but that site has very limited
# bandwidth and often isn't accessible
SRC_URI="mirror://debian/pool/main/g/gzip/gzip_${PV}.orig.tar.gz
	mirror://gentoo/${P}-deb.patch.bz2"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="alpha amd64 arm hppa ia64 mips ppc ppc64 sparc s390 x86"
IUSE="nls build static pic"

RDEPEND="virtual/libc"
DEPEND="${RDEPEND}
	nls? ( sys-devel/gettext )"
PROVIDE="virtual/gzip"

src_unpack() {
	unpack gzip_${PV}.orig.tar.gz
	cd ${S}
	epatch ${DISTDIR}/${P}-deb.patch.bz2
	epatch ${FILESDIR}/gzip-1.3.5-zdiff-tempfile.patch
}

src_compile() {
	use static && append-flags -static
	# avoid text relocation in gzip
	use pic && export DEFS="NO_ASM"
	econf --exec-prefix=/ $(use_enable nls) || die
	emake || die
}

src_install() {
	dodir /usr/bin /usr/share/man/man1
	make prefix=${D}/usr \
		exec_prefix=${D}/ \
		mandir=${D}/usr/share/man \
		infodir=${D}/usr/share/info \
		install || die

	cd ${D}/bin

	for i in gzexe zforce zgrep zmore znew zcmp
	do
		sed -i -e "s:${D}::" ${i} || die
		chmod 755 ${i}
	done

	# No need to waste space -- these guys should be links
	# gzcat is equivilant to zcat, but historically zcat
	# was a link to compress.
	rm -f gunzip zcat zcmp zegrep zfgrep
	dosym gzip /bin/gunzip
	dosym gzip /bin/gzcat
	dosym gzip /bin/zcat
	dosym zdiff /bin/zcmp
	dosym zgrep /bin/zegrep
	dosym zgrep /bin/zfgrep

	if ! use build
	then
		cd ${D}/usr/share/man/man1
		rm -f gunzip.* zcmp.* zcat.*
		ln -s gzip.1.gz gunzip.1.gz
		ln -s zdiff.1.gz zcmp.1.gz
		ln -s gzip.1.gz zcat.1.gz
		ln -s gzip.1.gz gzcat.1.gz
		cd ${S}
		rm -rf ${D}/usr/man ${D}/usr/lib
		dodoc ChangeLog NEWS README THANKS TODO
		docinto txt
		dodoc algorithm.doc gzip.doc
	else
		rm -rf ${D}/usr
	fi
}