private void RemoveExtraRPaths(ProjectParams Params, DeploymentContext SC)
{
// When we link the executable we add RPATH entries for all possible places where dylibs can be loaded from, so that the same executable can be used from Binaries/Mac
// as well as in a packaged, self-contained application. In recent versions of macOS, Gatekeeper doesn't allow RPATHs pointing to folders that don't exist,
// so we remove these based on the type of packaging (Params.CreateAppBundle).
List <FileReference> Exes = GetExecutableNames(SC);
foreach (var ExePath in Exes)
{
IProcessResult CommandResult = Run("otool", "-l \"" + ExePath + "\"", null, ERunOptions.None);
if (CommandResult.ExitCode == 0)
{
StringReader Reader = new StringReader(CommandResult.Output);
Regex RPathPattern = new Regex(@"^\s+path (?<rpath>.+)\s\(offset");
string ToRemovePattern = Params.CreateAppBundle ? "/../../../" : "@loader_path/../UE4/";
string OutputLine;
while ((OutputLine = Reader.ReadLine()) != null)
{
if (OutputLine.EndsWith("cmd LC_RPATH"))
{
OutputLine = Reader.ReadLine();
OutputLine = Reader.ReadLine();
Match RPathMatch = RPathPattern.Match(OutputLine);
if (RPathMatch.Success)
{
string RPath = RPathMatch.Groups["rpath"].Value;
if (RPath.Contains(ToRemovePattern))
{
Run("xcrun", "install_name_tool -delete_rpath \"" + RPath + "\" \"" + ExePath + "\"", null, ERunOptions.None);
}
}
}
}
}
}
}
