[PATCH] gnu: Add lean.

+++ b/gnu/local.mk

+# Copyright © 2019 Amin Bandali <bandali@gnu.org>

+ %D%/packages/lean.scm \

+++ b/gnu/packages/lean.scm

+;;; GNU Guix --- Functional package management for GNU

+;;; Copyright © 2019 Amin Bandali <bandali@gnu.org>

+;;;

+;;; This file is part of GNU Guix.

+;;;

+;;; GNU Guix is free software; you can redistribute it and/or modify it

+;;; under the terms of the GNU General Public License as published by

+;;; the Free Software Foundation; either version 3 of the License, or (at

+;;; your option) any later version.

+;;;

+;;; GNU Guix is distributed in the hope that it will be useful, but

+;;; WITHOUT ANY WARRANTY; without even the implied warranty of

+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

+;;; GNU General Public License for more details.

+;;;

+;;; You should have received a copy of the GNU General Public License

+;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.

+

+(define-module (gnu packages lean)

+ #:use-module (gnu packages multiprecision)

+ #:use-module (guix build-system cmake)

+ #:use-module ((guix licenses) #:prefix license:)

+ #:use-module (guix packages)

+ #:use-module (guix git-download))

+

+(define-public lean

+ (package

+ (name "lean")

+ (version "3.5.0")

+ (home-page "https://github.com/leanprover-community/lean")

+ (source (origin

+ (method git-fetch)

+ (uri (git-reference (url home-page)

+ (commit (string-append "v" version))))

+ (file-name (git-file-name name version))

+ (sha256

+ (base32

+ "1fdblq8ckrv6wqxfl4ybcs3ybfq7y096c9f5j4j75ymb14r401lr"))))

+ (build-system cmake-build-system)

+ (inputs

+ `(("gmp" ,gmp)))

+ (arguments

+ `(#:build-type "Release" ; default upstream build type

+ #:phases

+ (modify-phases %standard-phases

+ (add-after 'patch-source-shebangs 'patch-tests-shebangs

+ (lambda _

+ (let ((sh (which "sh"))

+ (bash (which "bash")))

+ (substitute* (find-files "tests/lean" "\\.sh$")

+ (("#![[:blank:]]?/bin/sh")

+ (string-append "#!" sh))

+ (("#![[:blank:]]?/bin/bash")

+ (string-append "#!" bash))

+ (("#![[:blank:]]?usr/bin/env bash")

+ (string-append "#!" bash)))

+ #t)))

+ (add-before 'configure 'chdir-to-src

+ (lambda _ (chdir "src") #t)))))

+ (synopsis "The Lean theorem prover and programming language")

+ (description

+ "Lean is a theorem prover and programming language with a small trusted

+core based on dependent typed theory, aiming to bridge the gap between

+interactive and automated theorem proving.")

+ (license license:asl2.0)))