From 91c542247268b77a945ee463ee2f73a119ea76a6 Mon Sep 17 00:00:00 2001
From: "Petteri.Aimonen" <Petteri.Aimonen@gmail.com>
Date: Mon, 27 Feb 2012 16:44:21 +0000
Subject: [PATCH] Fix useless warning on AVR

---
 libfixmath/fix16.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libfixmath/fix16.h b/libfixmath/fix16.h
index 31d7e00..a0de247 100644
--- a/libfixmath/fix16.h
+++ b/libfixmath/fix16.h
@@ -11,7 +11,12 @@ extern "C"
  */
 #ifndef FIXMATH_FUNC_ATTRS
 # ifdef __GNUC__
-#   define FIXMATH_FUNC_ATTRS __attribute__((leaf, nothrow, pure))
+#   ifdef AVR
+      // avr-gcc uselessly warns about "leaf".
+#     define FIXMATH_FUNC_ATTRS __attribute__((nothrow, pure))
+#   else
+#     define FIXMATH_FUNC_ATTRS __attribute__((leaf, nothrow, pure))
+#   endif
 # else
 #   define FIXMATH_FUNC_ATTRS
 # endif