From 5a9864c56da1587a198645427e5f14669b04c991 Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Wed, 18 Apr 2018 23:58:45 +0200
Subject: [PATCH] fix "-Wshift-negative-value" compiler warning on ggc-7.3.0

---
 src/rtl_fm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rtl_fm.c b/src/rtl_fm.c
index d2d011a..b163979 100644
--- a/src/rtl_fm.c
+++ b/src/rtl_fm.c
@@ -503,7 +503,7 @@ int polar_disc_lut(int ar, int aj, int br, int bj)
 
 	if (x_abs >= atan_lut_size) {
 		/* we can use linear range, but it is not necessary */
-		return (cj > 0) ? 1<<13 : -1<<13;
+		return (cj > 0) ? 1<<13 : -(1<<13);
 	}
 
 	if (x > 0) {