gentoo-overlay/sci-mathematics/eprover/eprover-3.0_pre008.ebuild

# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit toolchain-funcs

DESCRIPTION="Automated theorem prover for full first-order logic with equality"
HOMEPAGE="https://www.eprover.org/
	https://github.com/eprover/eprover/"
SRC_URI="https://github.com/eprover/${PN}/archive/E-${PV/_/}.tar.gz
	-> ${P}.tar.gz"
S="${WORKDIR}"/${PN}-E-${PV/_/}

LICENSE="GPL-2+"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+ho"

BDEPEND="sys-apps/help2man"

src_prepare() {
	default

	sed -e "/^OPTFLAGS/s|= .*|= ${CFLAGS}|"         \
		-e "/^LD/s|= .*|= $(tc-getCC) ${LDFLAGS}|"  \
		-e "/^   AR/s|ar|$(tc-getAR)|"              \
		-e "/^   CC/s|gcc|$(tc-getCC)|"             \
		-i "${S}"/Makefile.vars || die

	sed -e "s|ar rc|$(tc-getAR) rc|g"                       \
		-e "s|ranlib|$(tc-getRANLIB)|g"                     \
		-i "${S}"/CONTRIB/picosat-965/makefile.in || die
}

src_configure() {
	local -a myconf=(
		$(usex ho '--enable-ho' '')
		--bindir=/usr/bin
		--exec-prefix=/usr
		--man-prefix=/usr/share/man/man1
	)
	sh ./configure ${myconf[@]} || die
}

src_compile() {
	default

	if use ho ; then
		ln -s "${S}"/PROVER/${PN}-ho "${S}"/PROVER/${PN} || die
	fi

	emake man
}

src_install() {
	# Picosat (CONTRIB package) is available as separate package.
	rm -r "${S}"/CONTRIB || die

	emake EXECPATH="${ED}"/usr/bin MANPATH="${ED}"/usr/share/man/man1 install
	dodoc -r DOC EXAMPLE_PROBLEMS

	if use ho ; then
		dosym -r /usr/bin/${PN}-ho /usr/bin/${PN}
	fi
}