When creating a framework dylib, we pass the -install_name option when linking with the argument of where the library will normally be found. During builds this argument is in the value LD_DYLIB_INSTALL_NAME, which is computed from DYLIB_INSTALL_NAME_BASE and EXECUTABLE_PATH. For Catalyst builds using a system content path, that system content path is getting incorrectly prepended to DYLIB_INSTALL_NAME_BASE and needs to be removed.
<rdar://88387438>
Created attachment 450836 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Committed r289091 (?): <https://commits.webkit.org/r289091>