Fix bulding #14

Job	Run time
build / build (ENABLE_CUDA=true stt-linux-amd64, stt-linux-amd64-cuda)	10m 12s
build / build (stt-linux-amd64, stt-linux-amd64-cpu)	5m 18s
build / build (ENABLE_CUDA=true sttd-linux-amd64, sttd-linux-amd64-cuda)	8m 59s
build / build (subtitleswindow-linux-amd64, subtitleswindow-linux-amd64-cpu)	8m 13s
build / build (subtitleswindow-windows-amd64, subtitleswindow-windows-amd64-cpu)	4m 46s
build / build (ENABLE_CUDA=true subtitleswindow-windows-amd64, subtitleswindow-windows-amd64-cuda)	9m 37s
build / build (sttd-linux-amd64, sttd-linux-amd64-cpu)	5m 56s
build / build (ENABLE_CUDA=true subtitleswindow-linux-amd64, subtitleswindow-linux-amd64-cuda)	13m 1s
rolling-release	0s
	1h 6m 2s

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