From 29ddf649e1536dfeb6086430e9fe65c5749b9dad Mon Sep 17 00:00:00 2001
From: Johannes Ringler <59559612+Novakasa@users.noreply.github.com>
Date: Thu, 10 Feb 2022 07:54:05 +0100
Subject: [PATCH] fix unused variable warning with FIXMATH_FAST_SIN (#35)

---
 libfixmath/fix16_trig.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libfixmath/fix16_trig.c b/libfixmath/fix16_trig.c
index 09dd5d2..ca902ef 100644
--- a/libfixmath/fix16_trig.c
+++ b/libfixmath/fix16_trig.c
@@ -16,8 +16,11 @@ static fix16_t _fix16_atan_cache_value[4096] = { 0 };
 
 fix16_t fix16_sin_parabola(fix16_t inAngle)
 {
-	fix16_t abs_inAngle, abs_retval, retval;
+	fix16_t abs_inAngle, retval;
 	fix16_t mask;
+	#ifndef FIXMATH_FAST_SIN
+	fix16_t abs_retval;
+	#endif
 
 	/* Absolute function */
 	mask = (inAngle >> (sizeof(fix16_t)*CHAR_BIT-1));