# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

inherit autotools eutils toolchain-funcs multilib

DESCRIPTION="Standard (de)compression library"
HOMEPAGE="http://www.zlib.net/"
SRC_URI="http://www.gzip.org/zlib/${P}.tar.gz
	http://www.zlib.net/current/beta/${P}.tar.gz"

LICENSE="ZLIB"
SLOT="0"
KEYWORDS="alpha amd64 arm hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd"
IUSE="minizip static-libs"

RDEPEND="!<dev-libs/libxml2-2.7.7" #309623

src_unpack() {
	unpack ${A}
	cd "${S}"
	# trust exit status of the compiler rather than stderr #55434
	# -if test "`(...) 2>&1`" = ""; then
	# +if (...) 2>/dev/null; then
	sed -i 's|\<test "`\([^"]*\) 2>&1`" = ""|\1 2>/dev/null|' configure || die

	epatch "${FILESDIR}"/${P}-version.patch
	epatch "${FILESDIR}"/${P}-symlinks.patch
	EPATCH_OPTS=-p1 epatch "${FILESDIR}"/${PN}-1.2.4-minizip-autotools.patch
	if use minizip ; then
		cd contrib/minizip
		sed -i "s:@ZLIB_VER@:${PV}:" configure.ac || die
		ln -s ../../minigzip.c || die
		eautoreconf
	fi
}

usex() { use $1 && echo ${2:-yes} || echo ${3:-no} ; }
echoit() { echo "$@"; "$@"; }
src_compile() {
	case ${CHOST} in
	*-mingw*|mingw*)
		emake -f win32/Makefile.gcc STRIP=true PREFIX=${CHOST}- || die
		sed \
			-e 's|@prefix@|/usr|g' \
			-e 's|@exec_prefix@|${prefix}|g' \
			-e 's|@libdir@|${exec_prefix}/'$(get_libdir)'|g' \
			-e 's|@sharedlibdir@|${exec_prefix}/'$(get_libdir)'|g' \
			-e 's|@includedir@|${prefix}/include|g' \
			-e 's|@VERSION@|'${PV}'|g' \
			zlib.pc.in > zlib.pc || die
		;;
	*)	# not an autoconf script, so can't use econf
		echoit ./configure --shared --prefix=/usr --libdir=/usr/$(get_libdir) || die
		emake || die
		;;
	esac
	if use minizip ; then
		cd contrib/minizip
		econf $(use_enable static-libs static)
		emake || die
	fi
}

sed_macros() {
	# clean up namespace a little #383179
	# we do it here so we only have to tweak 2 files
	sed -i -r 's:\<(O[FN])\>:_Z_\1:g' "$@" || die
}
src_install() {
	case ${CHOST} in
	*-mingw*|mingw*)
		emake -f win32/Makefile.gcc install \
			BINARY_PATH="${D}/usr/bin" \
			LIBRARY_PATH="${D}/usr/$(get_libdir)" \
			INCLUDE_PATH="${D}/usr/include" \
			SHARED_MODE=1 \
			|| die
		insinto /usr/share/pkgconfig
		doins zlib.pc || die
		;;

	*)
		emake install DESTDIR="${D}" LDCONFIG=: || die
		gen_usr_ldscript -a z
		sed_macros "${D}"/usr/include/*.h
		;;
	esac

	dodoc FAQ README ChangeLog doc/*.txt

	if use minizip ; then
		cd contrib/minizip
		emake install DESTDIR="${D}" || die
		sed_macros "${D}"/usr/include/minizip/*.h
		dodoc *.txt
	fi

	use static-libs || rm -f "${D}"/usr/$(get_libdir)/*.{a,la}
}