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gnu: newlib-nano: Fix nano lib and header paths.

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* gnu/packages/embedded.scm (newlib-nano-arm-none-eabi)[arguments]: Hard link
library files from *.a to *_nano.a. Hard link newlib.h to a common location.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
This commit is contained in:
Morgan Smith 2021-04-08 09:02:20 -04:00 committed by Efraim Flashner
parent c901ec27d7
commit 8799369983
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1 changed files with 36 additions and 1 deletions
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37
gnu/packages/embedded.scm
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@ -8,6 +8,7 @@
;;; Copyright © 2020 Marius Bakke <mbakke@fastmail.com>
;;; Copyright © 2020 Björn Höfling <bjoern.hoefling@bjoernhoefling.de>
;;; Copyright © 2021 Julien Lepiller <julien@lepiller.eu>
;;; Copyright © 2021 Morgan Smith <Morgan.J.Smith@outlook.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -229,7 +230,41 @@ (define-public newlib-nano-arm-none-eabi
"--enable-lite-exit"
"--enable-newlib-global-atexit"
"--enable-newlib-nano-formatted-io"
"--disable-nls"))))
"--disable-nls"))
((#:phases phases)
`(modify-phases ,phases
;; XXX: Most arm toolchains offer both *.a and *_nano.a as newlib
;; and newlib-nano respectively. The headers are usually
;; arm-none-eabi/include/newlib.h for newlib and
;; arm-none-eabi/include/newlib-nano/newlib.h for newlib-nano. We
;; have two different toolchain packages for each which works but
;; is a little strange.
(add-after 'install 'hardlink-newlib
(lambda* (#:key outputs #:allow-other-keys)
(let ((out (assoc-ref outputs "out")))
;; The nano.specs file says that newlib-nano files should end
;; in "_nano.a" instead of just ".a". Note that this applies
;; to all the multilib folders too.
(for-each
(lambda (file)
(link file
(string-append
;; Strip ".a" off the end
(substring file 0 (- (string-length file) 2))
;; Add "_nano.a" onto the end
"_nano.a")))
(find-files
out
"^(libc.a|libg.a|librdimon.a|libstdc\\+\\+.a|libsupc\\+\\+.a)$"))
;; newlib.h is usually in this location instead so both
;; newlib and newlib-nano can be in the toolchain at the same
;; time
(mkdir (string-append out "/arm-none-eabi/include/newlib-nano"))
(symlink
"../newlib.h"
(string-append out "/arm-none-eabi/include/newlib-nano/newlib.h"))
#t)))))))
(synopsis "Newlib variant for small systems with limited memory")))