Index: webrtc/voice_engine/BUILD.gn |
diff --git a/webrtc/voice_engine/BUILD.gn b/webrtc/voice_engine/BUILD.gn |
index 9862579c850454f6d1329454a0ce678fe36cbaf7..809333b850d8e6d685e3b58902a27c8d19e800e5 100644 |
--- a/webrtc/voice_engine/BUILD.gn |
+++ b/webrtc/voice_engine/BUILD.gn |
@@ -139,6 +139,7 @@ rtc_static_library("voice_engine") { |
"../api:audio_mixer_api", |
"../api:call_api", |
"../api:libjingle_peerconnection_api", |
+ "../api:optional", |
"../api:transport_api", |
"../api/audio_codecs:audio_codecs_api", |
"../api/audio_codecs:builtin_audio_decoder_factory", |