# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

EAPI=5

inherit eutils multilib versionator

MY_PV=$(get_version_component_range 1-3)
DESCRIPTION="Chicken is a Scheme interpreter and native Scheme to C compiler"
HOMEPAGE="http://www.call-cc.org/"
SRC_URI="http://code.call-cc.org/releases/${MY_PV}/${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
KEYWORDS="alpha amd64 ppc ppc64 x86"
IUSE="emacs doc"
DOCS=( NEWS README LICENSE )

DEPEND="
	sys-apps/texinfo
	emacs? ( virtual/emacs )"
RDEPEND="
	emacs? (
		virtual/emacs
		app-emacs/scheme-complete
	)"

src_prepare() {
	#Because chicken's Upstream is in the habit of using variables that
	#portage also uses :( eg. $ARCH and $A
	sed "s,A\(\s?=\|)\),chicken&," \
		-i Makefile.cross-linux-mingw defaults.make rules.make || die
	sed "s,ARCH,zARCH," \
		-i Makefile.* defaults.make rules.make || die
	sed -e "s,\$(PREFIX)/lib,\$(PREFIX)/$(get_libdir)," \
		-e "s,\$(DATADIR)/doc,\$(SHAREDIR)/doc/${PF}," \
		-i defaults.make || die

	# remove HTML documentation if the user doesn't USE=doc
	if ! use "doc"; then
		rm -rf manual-html || die
	fi
}

src_compile() {
	OPTIONS="-j1 PLATFORM=linux PREFIX=/usr"

	emake ${OPTIONS} C_COMPILER_OPTIMIZATION_OPTIONS="${CFLAGS}" \
		LINKER_OPTIONS="${LDFLAGS}" \
		HOSTSYSTEM="${CBUILD}"
}

# chicken's testsuite is not runnable before install
# upstream has been notified of the issue
RESTRICT=test

src_install() {
	# still can't run make in parallel for the install target
	emake -j1 ${OPTIONS} DESTDIR="${D}" HOSTSYSTEM="${CBUILD}" \
		LINKER_OPTIONS="${LDFLAGS}" install

	dodoc ${DOCS}

	if use "doc"; then
		dodoc -r manual-html
	fi
}