Ebuild for Risa/Asir

asir-9999.ebuild

# Copyright 2017-2021 Kazuki Maeda <[email protected]>
# Distributed under the terms of the Simplified BSD License

EAPI=8
inherit multilib

DESCRIPTION="Risa/Asir is an open source general computer algebra system."
HOMEPAGE="http://www.math.kobe-u.ac.jp/Asir/"
MY_P="openxm-head.tar.gz"
SRC_URI="http://air.s.kanazawa-u.ac.jp/~ohara/openxm/${MY_P}"
RESTRICT="primaryuri"
LICENSE="" # Fujitsu Research Laboratory Risa/Asir license
SLOT="0"
KEYWORDS="~x86 ~amd64"

# Use flags:
# - contrib: install asir-contrib
# - emacs:   install asir-mode.el
IUSE="contrib emacs"

RDEPEND="dev-libs/gmp
         dev-libs/mpfr
         dev-libs/mpc
         sci-libs/mpfi
         emacs? ( virtual/emacs )"
DEPEND="${DEPEND}
        app-arch/sharutils
        dev-libs/boehm-gc[static-libs]
        net-libs/libtirpc"

S=${WORKDIR}/OpenXM_contrib2/asir2018
S_CONTRIB=${WORKDIR}/OpenXM/src/asir-contrib
S_EL=${WORKDIR}/OpenXM_contrib2/windows/post-msg-asirgui
SITELISP=/usr/share/emacs/site-lisp

pkg_setup() {
    echo ""
    ewarn "The source tarball ${MY_P} may be updated."
    ewarn "If you want to install the latest version, once remove"
    ewarn "${MY_P} in your DISTDIR and run emerge with"
    ewarn "--digest option."
    echo ""

    sleep 3
    return
}

src_configure() {
    CFLAGS="-I/usr/include/tirpc ${CFLAGS}"
    econf --without-asir-gc --enable-static --enable-plot

    if use contrib ; then
        cd ${S_CONTRIB}
        econf --prefix=${D}/usr/$(get_libdir)
    fi
}

src_install() {
    emake DESTDIR="${D}" install

    mv ${D}/usr/lib/asir ${D}/usr/$(get_libdir)/
    rmdir ${D}/usr/lib

    if use contrib ; then
        cd ${S_CONTRIB}
        emake install
        cd ${D}/usr/$(get_libdir)/lib
        mv asir-contrib ../
        rmdir ${D}/usr/$(get_libdir)/lib
    fi

    if use emacs ; then
        install -m 755 -d ${D}/${SITELISP}
        install -m 644 ${S_EL}/asir-mode.el ${D}/${SITELISP}
    fi
}

pkg_postinst() {
    ALP="/usr/$(get_libdir)/asir"
    if use contrib ; then
        ALP="${ALP}:/usr/$(get_libdir)/asir-contrib"
    fi
    ewarn "You must set the environment variable ASIRLOADPATH."
    ewarn "If you are using bash, run"
    ewarn ""
    ewarn "    echo \"export ASIRLOADPATH=${ALP}\" >> ~/.bashrc"
    ewarn ""

    if use emacs ; then
        einfo "To use asir-mode in Emacs, write the following configuration to"
        einfo "~/.emacs.d/init.el:"
        einfo ""
        einfo "(setq auto-mode-alist (cons '(\"\\\\\\\\.rr$\" . asir-mode) auto-mode-alist))"
        einfo "(autoload 'asir-mode \"asir-mode\" \"Asir mode\" t)"
        einfo ""
    fi
}