dev-lang/ocaml: adjust subslot to be major version

Should be bytecode compatible with non-major version changes. Makes it
a lot easier to give dependencies in e.g. camlp4 which needs to be
exactly aligned with the OCaml major version.

Bug: https://bugs.gentoo.org/794898
Acked-by: Alfredo Tupone <tupone@gentoo.org>
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/dev-lang/ocaml/ocaml-4.12.0-r1.ebuild b/dev-lang/ocaml/ocaml-4.12.0-r1.ebuild
new file mode 100644
index 000000000000..137a6160e458
--- /dev/null
+++ b/dev-lang/ocaml/ocaml-4.12.0-r1.ebuild
@@ -0,0 +1,93 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit flag-o-matic
+
+HOMEPAGE="https://ocaml.org/"
+SRC_URI="https://github.com/ocaml/ocaml/archive/${PV}.tar.gz -> ${P}.tar.gz"
+DESCRIPTION="Programming language supporting functional, imperative & object-oriented styles"
+
+LICENSE="QPL-1.0 LGPL-2"
+SLOT="0/$(ver_cut 1-2)"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~sparc-solaris ~x86-solaris"
+IUSE="emacs flambda latex +ocamlopt xemacs"
+
+RDEPEND="sys-libs/binutils-libs:="
+BDEPEND="${RDEPEND}
+	virtual/pkgconfig"
+PDEPEND="emacs? ( app-emacs/ocaml-mode )
+	xemacs? ( app-xemacs/ocaml )"
+
+src_prepare() {
+	default
+
+	# OCaml generates textrels on 32-bit arches
+	# We can't do anything about it, but disabling it means that tests
+	# for OCaml-based packages won't fail on unexpected output
+	# bug #773226
+	#if use arm || use ppc || use x86 ; then
+		append-ldflags "-Wl,-z,notext"
+	#fi
+
+	# Upstream build ignores LDFLAGS in several places.
+	sed -i -e 's/\(^MKDLL=.*\)/\1 $(LDFLAGS)/' \
+		-e 's/\(^OC_CFLAGS=.*\)/\1 $(LDFLAGS)/' \
+		-e 's/\(^OC_LDFLAGS=.*\)/\1 $(LDFLAGS)/' \
+		Makefile.config.in || die "LDFLAGS fix failed"
+}
+
+src_configure() {
+	local opt=(
+		--bindir="${EPREFIX}/usr/bin"
+		--libdir="${EPREFIX}/usr/$(get_libdir)/ocaml"
+		--mandir="${EPREFIX}/usr/share/man"
+		--prefix="${EPREFIX}/usr"
+		$(use_enable flambda)
+	)
+
+	econf "${opt[@]}"
+}
+
+src_compile() {
+	env -u P emake world
+
+	if use ocamlopt ; then
+		env -u P emake opt
+		env -u P emake opt.opt
+	fi
+}
+
+src_test() {
+	emake -j
+
+	# OCaml tests only work when run sequentially
+	if use ocamlopt ; then
+		emake -j1 ocamltest.opt
+	else
+		emake -j1 ocamltest
+		#ewarn "${PN} was built without 'ocamlopt' USE flag; skipping tests."
+	fi
+
+	emake -j1 tests
+}
+
+src_install() {
+	default
+
+	dodir /usr/include
+	# Create symlink for header files
+	dosym "../$(get_libdir)/ocaml/caml" /usr/include/caml
+	dodoc Changes README.adoc
+
+	# Create envd entry for latex input files
+	if use latex ; then
+		echo "TEXINPUTS=\"${EPREFIX}/usr/$(get_libdir)/ocaml/ocamldoc:\"" > "${T}/99ocamldoc" || die
+		doenvd "${T}/99ocamldoc"
+	fi
+
+	# Install ocaml-rebuild portage set
+	insinto /usr/share/portage/config/sets
+	doins "${FILESDIR}/ocaml.conf"
+}