From a299a8992cb96575db397122f9e2f82cbb96286e Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Sat, 17 Sep 2016 19:13:45 +0200
Subject: gnu: Add newlib-nano-arm-none-eabi.

* gnu/packages/embedded.scm (newlib-nano-arm-none-eabi): New variable.
---
 gnu/packages/embedded.scm | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'gnu/packages/embedded.scm')

diff --git a/gnu/packages/embedded.scm b/gnu/packages/embedded.scm
index cb4ccdf25a..24eeef9fa7 100644
--- a/gnu/packages/embedded.scm
+++ b/gnu/packages/embedded.scm
@@ -139,3 +139,27 @@ systems.  It is a conglomeration of several library parts that are easily
 usable on embedded products.")
     (license (license:non-copyleft
               "https://www.sourceware.org/newlib/COPYING.NEWLIB"))))
+
+(define-public newlib-nano-arm-none-eabi
+  (package (inherit newlib-arm-none-eabi)
+    (name "newlib-nano")
+    (arguments
+     (substitute-keyword-arguments (package-arguments newlib-arm-none-eabi)
+       ;; The configure flags are identical to the flags used by the "GCC ARM
+       ;; embedded" project.  They optimize newlib for use on small embedded
+       ;; systems with limited memory.
+       ((#:configure-flags flags)
+        ''("--target=arm-none-eabi"
+           "--enable-multilib"
+           "--disable-newlib-supplied-syscalls"
+           "--enable-newlib-reent-small"
+           "--disable-newlib-fvwrite-in-streamio"
+           "--disable-newlib-fseek-optimization"
+           "--disable-newlib-wide-orient"
+           "--enable-newlib-nano-malloc"
+           "--disable-newlib-unbuf-stream-opt"
+           "--enable-lite-exit"
+           "--enable-newlib-global-atexit"
+           "--enable-newlib-nano-formatted-io"
+           "--disable-nls"))))
+    (synopsis "Newlib variant for small systems with limited memory")))
-- 
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