From b1a78c8f248378f8079d7b9a777e3db549148cf8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Janiszewski?=
 <janisozaur@users.noreply.github.com>
Date: Mon, 1 Jan 2018 22:55:00 +0100
Subject: [PATCH] Fix a compilation issue with older compilers

---
 src/openrct2/ride/Ride.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/openrct2/ride/Ride.cpp b/src/openrct2/ride/Ride.cpp
index f9bdfa30c6..f0417caefc 100644
--- a/src/openrct2/ride/Ride.cpp
+++ b/src/openrct2/ride/Ride.cpp
@@ -8060,7 +8060,9 @@ sint32 get_booster_speed(uint8 rideType, sint32 rawSpeed)
     }
     else
     {
-        return (rawSpeed >> std::abs(shiftFactor));
+        // Workaround for an issue with older compilers (GCC 6, Clang 4) which would fail the build
+        sint8 shiftFactorAbs = std::abs(shiftFactor);
+        return (rawSpeed >> shiftFactorAbs);
     }
 }