User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0 Build ID: 20170613173134 Steps to reproduce: Build with the default mozconfig on KaOS or Arch - i guess others are also effected Actual results: This error message(s) appeared (USE_LIBS contains (media_libjpeg) / (media_libvpx) which does not match any LIBRARY_NAME in the tree.) Expected results: Build finished fine.

mozconfig file with the mentioned entries commented out

https://dxr.mozilla.org/mozilla-beta/rev/b08a305464d127e25fab19f358fac15fceb52954/media/webrtc/trunk/gtest/moz.build#29,31 > USE_LIBS += [ > ... > 'media_libjpeg', > ... > 'media_libvpx', I guess these lines should be inside a branch on CONFIG['MOZ_SYSTEM_JPEG'] or CONFIG['MOZ_SYSTEM_LIBVPX'].

Comment on attachment 8879131 [details] [diff] [review] Check for system libjpeg and libvpx in webrtc gtest moz.build Review of attachment 8879131 [details] [diff] [review]: ----------------------------------------------------------------- ::: media/webrtc/trunk/gtest/moz.build @@ +43,5 @@ > 'yuv', > ] > > +if not CONFIG['MOZ_SYSTEM_JPEG']: > + USE_LIBS += ['media_libjpeg'] That will still fail, albeit with a different error, because of the missing linkage of the system jpeg and vpx libraries. I think we need something similar to what's done with config/external/*/moz.build (e.g. sqlite)

Yes, I foolishly didn't let the build run to completion once I saw it get past the errors mentioned. This patch does build on my (Ubuntu) system both with and without --with-system-jpeg and --with-system-libvpx set.

Comment on attachment 8879503 [details] [diff] [review] Check for system libjpeg and libvpx in webrtc gtest moz.build Review of attachment 8879503 [details] [diff] [review]: ----------------------------------------------------------------- This fixes the immediate problem, but I still think we need something like config/external/sqlite/moz.build. Please file a followup bug.

Thanks! Filed Bug 1375178.

Pushed by dminor@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/4bc36447fcf4 Make webrtc-gtest build work with system jpeg and libvpx; r=glandium

We'll want this uplifted to beta. Can you do the request?