dev-lang/ocaml: fix 4.09 with glibc 2.34

Bug: https://bugs.gentoo.org/804498
See: https://github.com/gentoo/gentoo/pull/22851#pullrequestreview-882504245
Signed-off-by: Sam James <sam@gentoo.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/dev-lang/ocaml/ocaml-4.09.0-r3.ebuild b/dev-lang/ocaml/ocaml-4.09.0-r3.ebuild
new file mode 100644
index 000000000000..8bf41d439d5a
--- /dev/null
+++ b/dev-lang/ocaml/ocaml-4.09.0-r3.ebuild
@@ -0,0 +1,105 @@
+# Copyright 1999-2022 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 -> ${P}.tar.gz"
+DESCRIPTION="Programming language supporting functional, imperative & object-oriented styles"
+
+LICENSE="LGPL-2.1"
+SLOT="0/$(ver_cut 1-2)"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~sparc-solaris ~x86-solaris"
+IUSE="emacs flambda latex +ocamlopt spacetime xemacs"
+
+RDEPEND="sys-libs/binutils-libs:=
+	spacetime? ( sys-libs/libunwind:= )"
+BDEPEND="${RDEPEND}
+	virtual/pkgconfig"
+PDEPEND="emacs? ( app-emacs/ocaml-mode )
+	xemacs? ( app-xemacs/ocaml )"
+
+QA_FLAGS_IGNORED='usr/lib.*/ocaml/bigarray.cmxs'
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-4.09.0-gcc-10.patch
+	"${FILESDIR}"/${P}-cflags.patch
+	"${FILESDIR}"/${P}-glibc-2.34.patch
+)
+
+src_prepare() {
+	default
+
+	cp "${FILESDIR}"/ocaml.conf "${T}" || die
+
+	# Broken until 4.12
+	# bug #818445
+	filter-flags '-flto*'
+	append-flags -fno-strict-aliasing
+
+	# 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"
+	# ${P} overrides upstream build's own P due to a wrong assignment operator.
+	sed -i -e 's/^P ?=/P =/' stdlib/StdlibModules || die "P fix failed"
+}
+
+src_configure() {
+	local opt=(
+		--bindir="${EPREFIX}/usr/bin"
+		--libdir="${EPREFIX}/usr/$(get_libdir)/ocaml"
+		--mandir="${EPREFIX}/usr/share/man"
+		--prefix="${EPREFIX}/usr"
+		$(use_enable flambda)
+		$(use_enable spacetime)
+	)
+	econf ${opt[@]}
+}
+
+src_compile() {
+	if use ocamlopt ; then
+		emake world.opt
+	else
+		emake world
+	fi
+}
+
+src_test() {
+	if use ocamlopt ; then
+		# OCaml tests only work when run sequentially
+		emake -j1 -C testsuite all
+	else
+		ewarn "${PN} was built without 'ocamlopt' USE flag; skipping tests."
+	fi
+}
+
+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 "${T}"/99ocamldoc
+	fi
+
+	sed -i -e "s:lib:$(get_libdir):" "${T}"/ocaml.conf || die
+
+	# Install ocaml-rebuild portage set
+	insinto /usr/share/portage/config/sets
+	doins "${T}"/ocaml.conf
+}