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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014, 2016 Manolis Fragkiskos Ragkousis <>
;;; Copyright © 2015, 2017 Ricardo Wurmus <>
;;; Copyright © 2016 David Thompson <>
;;; Copyright © 2016 Efraim Flashner <>
;;; Copyright © 2018 Tobias Geerinckx-Rice <>
;;; Copyright © 2020 Marius Bakke <>
;;; 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
;;; 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 <>.
(define-module (gnu packages avr)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix utils)
#:use-module (guix download)
#:use-module (guix git-download)
#:use-module (guix packages)
#:use-module (guix build-system gnu)
#:use-module (guix build-system trivial)
#:use-module (gnu packages)
#:use-module (gnu packages compression)
#:use-module (gnu packages cross-base)
#:use-module (gnu packages flashing-tools)
#:use-module (gnu packages gcc)
#:use-module (gnu packages vim))
(define-public avr-binutils
(inherit (cross-binutils "avr"))
(name "avr-binutils")))
(define-public avr-gcc-4.9
(let ((xgcc (cross-gcc "avr" #:xgcc gcc-4.9 #:xbinutils avr-binutils)))
(inherit xgcc)
(name "avr-gcc")
(substitute-keyword-arguments (package-arguments xgcc)
((#:phases phases)
`(modify-phases ,phases
(add-after 'set-paths 'augment-CPLUS_INCLUDE_PATH
(lambda* (#:key inputs #:allow-other-keys)
(let ((gcc (assoc-ref inputs "gcc")))
;; Remove the default compiler from CPLUS_INCLUDE_PATH to
;; prevent header conflict with the GCC from native-inputs.
(delete (string-append gcc "/include/c++")
(string-split (getenv "CPLUS_INCLUDE_PATH")
(format #t
"environment variable `CPLUS_INCLUDE_PATH' changed to ~a~%"
;; Without a working multilib build, the resulting GCC lacks
;; support for nearly every AVR chip.
(add-after 'unpack 'fix-genmultilib
(lambda _
;; patch-shebang doesn't work here because there are actually
;; several scripts inside this script, each with a #!/bin/sh
;; that needs patching.
(substitute* "gcc/genmultilib"
(("#!/bin/sh") (string-append "#!" (which "sh"))))
((#:configure-flags flags)
`(delete "--disable-multilib" ,flags))))
(list (search-path-specification
(files '("avr/include")))
(files '("avr/include")))
(files '("avr/include")))
(files '("avr/include")))
(files '("avr/lib")))))
`(("gcc@5" ,gcc-5)
,@(package-native-inputs xgcc))))))
(define-public avr-gcc-5
(inherit avr-gcc-4.9)
(version (package-version gcc-5))
(source (origin
(inherit (package-source gcc-5))
(patches (append (origin-patches (package-source gcc-5))
(search-patches "gcc-cross-environment-variables.patch")))))))
(define (avr-libc avr-gcc)
(name "avr-libc")
(version "2.0.0")
(source (origin
(method url-fetch)
(uri (string-append "mirror://savannah//avr-libc/avr-libc-"
version ".tar.bz2"))
(build-system gnu-build-system)
'(#:out-of-source? #t
#:configure-flags '("--host=avr")
(modify-phases %standard-phases
(add-before 'unpack 'fix-cpath
(lambda _
;; C_INCLUDE_PATH and CPATH pose issues for cross-building,
;; leading to failures when building avr-libc on 64-bit systems.
;; Simply unsetting them allows the build to succeed because it
;; doesn't try to use any of the native system's headers.
(unsetenv "C_INCLUDE_PATH")
(unsetenv "CPATH")
(native-inputs `(("avr-binutils" ,avr-binutils)
("avr-gcc" ,avr-gcc)))
(home-page "")
(synopsis "The AVR C Library")
"AVR Libc is a project whose goal is to provide a high quality C library
for use with GCC on Atmel AVR microcontrollers.")
(license:non-copyleft ""))))
(define (avr-toolchain avr-gcc)
;; avr-libc checks the compiler version and passes "--enable-device-lib" for avr-gcc > 5.1.0.
;; It wouldn't install the library for atmega32u4 etc if we didn't use the corret avr-gcc.
(let ((avr-libc (avr-libc avr-gcc)))
(name "avr-toolchain")
(version (package-version avr-gcc))
(source #f)
(build-system trivial-build-system)
(arguments '(#:builder (begin (mkdir %output) #t)))
`(("avrdude" ,avrdude)
("binutils" ,avr-binutils)
("gcc" ,avr-gcc)
("libc" ,avr-libc)))
(synopsis "Complete GCC tool chain for AVR microcontroller development")
(description "This package provides a complete GCC tool chain for AVR
microcontroller development. This includes the GCC AVR cross compiler and
avrdude for firmware flashing. The supported programming languages are C and
(home-page (package-home-page avr-libc))
(license (package-license avr-gcc)))))
(define-public avr-toolchain-4.9 (avr-toolchain avr-gcc-4.9))
(define-public avr-toolchain-5 (avr-toolchain avr-gcc-5))
(define-public microscheme
(name "microscheme")
(version "0.9.3")
(method git-fetch)
(uri (git-reference
(url "")
(commit (string-append "v" version))))
(base32 "1r3ng4pw1s9yy1h5rafra1rq19d3vmb5pzbpcz1913wz22qdd976"))
(file-name (git-file-name name version))))
(build-system gnu-build-system)
`(#:parallel-build? #f ; fails to build otherwise
#:tests? #f ; no tests
(modify-phases %standard-phases
(delete 'configure))
(list (string-append "PREFIX=" (assoc-ref %outputs "out")))))
`(("unzip" ,unzip)
("xxd" ,xxd)))
(home-page "")
(synopsis "Scheme subset for Atmel microcontrollers")
"Microscheme, or @code{(ms)} for short, is a functional programming
language for the Arduino, and for Atmel 8-bit AVR microcontrollers in general.
Microscheme is a subset of Scheme, in the sense that every valid @code{(ms)}
program is also a valid Scheme program (with the exception of Arduino
hardware-specific primitives). The @code{(ms)} compiler performs function
inlining, and features an aggressive tree-shaker, eliminating unused top-level
definitions. Microscheme has a robust @dfn{Foreign Function Interface} (FFI)
meaning that C code may be invoked directly from (ms) programs.")
(license license:expat)))