dev-lang/lean: add 3.34.0

Signed-off-by: Alessandro Barbieri <lssndrbarbieri@gmail.com>

dev-lang/lean/Manifest

@@ -1 +1,2 @@
 DIST lean-3.33.0.tar.gz 1890511 BLAKE2B 93fed81409a5d2fc31fd0963e00262ffbf7ce177954501e01d988666bf55bd4e0243488139f34eb4322055a5512565c6770749f793a8b7a8c7eb6e3045c5c2e7 SHA512 813f21f57913c15ca52b3a40bb0493d156b714ea26c5dcf4d159ee7aedf05dd6259ff57c05aa278bc72a3bfb9a531835387fc8cfbaca7d8341e0f2fbe9535bf3
+DIST lean-3.34.0.tar.gz 1891710 BLAKE2B 53c25b93c2e720187bfa5980a6bf3c9790aebb757b732704f6f5ad250b333c192417a938bc1cd6274a45f5b5f49f8e275da1f5c5597ffd7bc2da7bbe8b0371f7 SHA512 bc3f81ffbfa3291675d3c09c28c3eacccc2d44d021fb7e9923c7116091046b57f388589074e984f257842757c77972ef3b354d8690cccbebf6d3e2aae1f811a5

dev-lang/lean/lean-3.34.0.ebuild

@@ -0,0 +1,53 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_IN_SOURCE_BUILD="ON"
+
+inherit cmake optfeature
+
+DESCRIPTION="The Lean Theorem Prover"
+HOMEPAGE="https://leanprover-community.github.io/"
+
+if [[ "${PV}" == *9999* ]]; then
+	MAJOR=3  # sync this periodically for the live version
+	inherit git-r3
+	EGIT_REPO_URI="https://github.com/leanprover-community/lean.git"
+else
+	MAJOR=$(ver_cut 1)
+	SRC_URI="https://github.com/leanprover-community/lean/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+	KEYWORDS="~amd64"
+fi
+S="${WORKDIR}/lean-${PV}/src"
+
+RESTRICT="!test? ( test )"
+LICENSE="Apache-2.0"
+SLOT="0/${MAJOR}"
+IUSE="+json test +threads"
+
+RDEPEND="dev-libs/gmp"
+DEPEND="${RDEPEND}"
+
+src_configure() {
+	local mycmakeargs=(
+		-DALPHA=ON
+		-DAUTO_THREAD_FINALIZATION=ON
+		-DJSON=$(usex json)
+		-DLEAN_EXTRA_CXX_FLAGS="${CXXFLAGS}"
+		-DMULTI_THREAD=$(usex threads)
+		-DUSE_GITHASH=OFF
+	)
+	cmake_src_configure
+}
+
+pkg_postinst() {
+	elog "You probably want to use lean with mathlib, to install it you can either:"
+	elog " - Do not install mathlib globally and use local versions"
+	elog " - Use leanproject from sci-mathematics/mathlib-tools"
+	elog "   $ leanproject global-install"
+	elog " - Use leanpkg and compile mathlib (which will take long time)"
+	elog "   $ leanpkg install https://github.com/leanprover-community/mathlib"
+
+	optfeature "project management with leanproject" sci-mathematics/mathlib-tools
+}