In engineering builds, ld emits this warning when linking WebCore and WebKit: ld: warning: invalid -install_name (@loader_path/../../../libwebrtc.dylib) in dependent dylib (/symroot/Debug/libwebrtc.dylib). Dylibs/frameworks which might go in dyld shared cache cannot link with dylib that uses @rpath, @loader_path, etc. Patch forthcoming.
Created attachment 306051 [details] Have the linker know that engineering builds are not destined for the shared cache
Fixed in <https://trac.webkit.org/r214718>.