# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-libs/newlib/newlib-9999.ebuild,v 1.2 2014/01/02 12:57:47 vapier Exp $

EAPI="4"

inherit flag-o-matic toolchain-funcs eutils

if [[ ${PV} == "9999" ]] ; then
	EGIT_REPO_URI="git://sourceware.org/git/newlib.git"
	inherit git-r3
else
	SRC_URI="ftp://sourceware.org/pub/newlib/${P}.tar.gz"
	KEYWORDS="-* ~arm ~hppa ~m68k ~mips ~ppc ~ppc64 ~sh ~sparc ~x86"
fi

export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
	if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
		export CTARGET=${CATEGORY/cross-}
	fi
fi

DESCRIPTION="Newlib is a C library intended for use on embedded systems"
HOMEPAGE="http://sourceware.org/newlib/"

LICENSE="NEWLIB LIBGLOSS GPL-2"
SLOT="0"
IUSE="nls threads unicode crosscompile_opts_headers-only newlib-nano"
RESTRICT="strip"

NEWLIBBUILD="${WORKDIR}/build"
NEWLIBNANOBUILD="${WORKDIR}/build.nano"
NEWLIBNANOTMPINSTALL="${WORKDIR}/nano_tmp_install"

pkg_setup() {
	# Reject newlib-on-glibc type installs
	if [[ ${CTARGET} == ${CHOST} ]] ; then
		case ${CHOST} in
			*-newlib|*-elf) ;;
			*) die "Use sys-devel/crossdev to build a newlib toolchain" ;;
		esac
	fi
}

src_prepare() {
	epatch_user
}

src_configure() {
	# we should fix this ...
	unset LDFLAGS
	CHOST=${CTARGET} strip-unsupported-flags

	local myconf=""
	[[ ${CTARGET} == "spu" ]] \
		&& myconf="${myconf} --disable-newlib-multithread" \
		|| myconf="${myconf} $(use_enable threads newlib-multithread)"

	mkdir -p "${NEWLIBBUILD}"
	cd "${NEWLIBBUILD}"

	ECONF_SOURCE=${S} \
	econf \
		$(use_enable unicode newlib-mb) \
		$(use_enable nls) \
		${myconf}
		
	# Build newlib-nano beside newlib (original)
	# Based on https://tracker.debian.org/media/packages/n/newlib/rules-2.1.0%2Bgit20140818.1a8323b-2
	if use newlib-nano ; then
		mkdir -p "${NEWLIBNANOBUILD}"
		cd "${NEWLIBNANOBUILD}"

		ECONF_SOURCE=${S} \
		econf \
			$(use_enable unicode newlib-mb) \
			$(use_enable nls) \
			--enable-newlib-reent-small \
			--disable-newlib-fvwrite-in-streamio \
			--disable-newlib-fseek-optimization \
			--disable-newlib-wide-orient \
			--enable-newlib-nano-malloc \
			--disable-newlib-unbuf-stream-opt \
			--enable-lite-exit \
			--enable-newlib-global-atexit \
			--enable-newlib-nano-formatted-io \
			${myconf}
	fi
}

src_compile() {
	emake -C "${NEWLIBBUILD}"
	use newlib-nano && emake -C "${NEWLIBNANOBUILD}"
}

src_install() {
	cd "${NEWLIBBUILD}"
	emake -j1 DESTDIR="${D}" install
#	env -uRESTRICT CHOST=${CTARGET} prepallstrip

	if use newlib-nano ; then
		emake -j1 DESTDIR="${NEWLIBNANOTMPINSTALL}" install
		# Rename nano lib* files to lib*_nano and move to the real ${D}
		# Avoid dependency on perl-rename by using a for loop instead.
		local nanolibfiles=""
		nanolibfiles=$(find "${NEWLIBNANOTMPINSTALL}" -regex ".*/lib\(c\|g\|rdimon\)\.a" -print)
		for f in ${nanolibfiles}; do 
			local l="${f##${NEWLIBNANOTMPINSTALL}}"
			mv "${f}" "${D}/${l%%\.a}_nano.a"
		done
	fi

	# minor hack to keep things clean
	rm -fR "${D}"/usr/share/info
	rm -fR "${D}"/usr/info
	
}