1 files changed, 4 insertions, 4 deletions
diff --git a/alc/alu.h b/alc/alu.h
index 67fd09e5..33453487 100644
--- a/alc/alu.h
+++ b/alc/alu.h
@@ -2,14 +2,14 @@
 #define ALU_H
 
 #include <bitset>
-
-#include "aloptional.h"
+#include <optional>
+#include <stdint.h>
 
 struct ALCcontext;
 struct ALCdevice;
 struct EffectSlot;
 
-enum class StereoEncoding : unsigned char;
+enum class StereoEncoding : uint8_t;
 
 
 constexpr float GainMixMax{1000.0f}; /* +60dB */
@@ -31,7 +31,7 @@ void aluInit(CompatFlagBitset flags, const float nfcscale);
  * Set up the appropriate panning method and mixing method given the device
  * properties.
  */
-void aluInitRenderer(ALCdevice *device, int hrtf_id, al::optional<StereoEncoding> stereomode);
+void aluInitRenderer(ALCdevice *device, int hrtf_id, std::optional<StereoEncoding> stereomode);
 
 void aluInitEffectPanning(EffectSlot *slot, ALCcontext *context);