The video flag for net-voip/linphone provides v4l version 1 support. Reproducible: Always Steps to Reproduce: 1. USE="video" emerge linphone Actual Results: emerge fails due to missing v4l version 1 support if medeiasteamer is not built with vide4linux version 1 support (currently the video flag on it) Expected Results: detection of v4l-1 or v4l-2 support, using what is available Renaming the flag to v4l or v4l1 or v4l-old will not fix anything, but will be consistent with the v4l2 flag. It will also avoid confusion with packages using "video" to pull in video player deps (e.g. ffmpeg/mplayer). And, it will help clarify which packages use v4l version 1 during migration away for version 1 since >=2.6.36 kernel/headers no longer provide version 1 support. The package does not seem to support v4l2 but uses the flag to pull mediastreamer +video as a dep, which provides v4l version 1 support for mediastreamer. Bug# 362537 requests the same flag renaming be done with mediastreamer, so if done, renaming on both should happen at the same time.
As I said in mediastreamer bug I'd better kept video USE flag to reflect it's usage and not one library that is used to provide video capabilities for mediastreamer and linphone. In any case thank you for report.