Build fix for clang <= 14

(cherry picked from commit 5f31d7cb88e77104c10f6dda1b082809471687a3)

1 files changed, 4 insertions, 1 deletions

diff --git a/src/server/game/Movement/Spline/MoveSplineFlag.h b/src/server/game/Movement/Spline/MoveSplineFlag.h
index b44ac9d0adc..19fb0c6973f 100644
--- a/src/server/game/Movement/Spline/MoveSplineFlag.h
+++ b/src/server/game/Movement/Spline/MoveSplineFlag.h
@@ -116,8 +116,11 @@ namespace Movement
         template <MoveSplineFlagEnum Flag>
         struct FlagAccessor
         {
+            // force compile time evaluation - workaround for clang <= 14
+            static constexpr MoveSplineFlagEnum DisallowedFlag = std::integral_constant<MoveSplineFlagEnum, GetDisallowedFlagsFor(Flag)>::value;
+
             constexpr operator bool() const { return (Raw & Flag) != MoveSplineFlagEnum::None; }
-            constexpr FlagAccessor& operator=(bool val) { if (val) { Raw = Raw & ~GetDisallowedFlagsFor(Flag) | Flag; } else Raw &= ~Flag; return *this; }
+            constexpr FlagAccessor& operator=(bool val) { if (val) { Raw = Raw & ~DisallowedFlag | Flag; } else Raw &= ~Flag; return *this; }
             MoveSplineFlagEnum Raw;
         };