dev-tex/dvi2gr: EAPI7, improve ebuild.

Closes: https://bugs.gentoo.org/663808
Closes: gentoo#9461

dev-tex/dvi2gr/dvi2gr-0.4-r1.ebuild

@@ -0,0 +1,44 @@
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit toolchain-funcs
+
+DESCRIPTION="DVI to Grace translator"
+HOMEPAGE="http://plasma-gate.weizmann.ac.il/Grace/"
+SRC_URI="ftp://plasma-gate.weizmann.ac.il/pub/grace/src/devel/${P}.tar.gz"
+
+SLOT="0"
+LICENSE="GPL-2"
+KEYWORDS="~amd64 ~x86"
+IUSE="examples"
+
+DEPEND="media-libs/t1lib"
+RDEPEND="${DEPEND}"
+
+src_prepare() {
+	tc-export CC
+	default
+	# respect flags
+	sed -i \
+		-e '/^LDFLAGS/d' -e '/^CFLAGS/d' -e '/^CC/d' \
+		Makefile || die
+	sed -i -e 's/DVI2GR=\.\/dvi2gr/DVI2GR=$(which dvi2gr)/g' runtest.sh || die
+}
+
+src_install() {
+	dobin ${PN}
+	if use examples; then
+		insinto /usr/share/doc/${PF}/examples
+		doins *.ti runtest.sh
+	fi
+
+	insinto /usr/share/${PN}
+	doins -r fonts
+}
+
+pkg_postinst() {
+	einfo "Don't forget install the TeX-Fonts in Grace"
+	einfo "  /usr/share/${PN}/fonts/FontDataBase"
+}