Bug 20459 – Runtime arg parsing should stop at '--'

Currently runtime argument parsing (--DRT-gcopt for example) does not stop at the POSIX-recommended value (double dash, '--'). There is a way to disable argument parsing completely (https://github.com/dlang/druntime/pull/2375) but no way to write a program that would take arguments that are passed to a child, like `dub` or `rdmd` do. The three possible cases, using dub as an example, are: - dub --DRT-gcopt:whatever -- ProgramArguments (Configure dub) - dub -- --DRT-gcopt:whatever ProgramArguments (Configure the package) - dub --DRT-gcopt:whatever -- --DRT-gcopt:whatever ProgramArguments (Configure both) Note that this approach isn't fully perfect: It assumes the program will use `--` itself, which might not be true, but it's an improvement over what we currently have. Another option I could see is to provide a hook for argument parsing to programs instead of adding those booleans (rt_cmdline_enabled, rt_envvars_enabled, etc...).

@Geod24 created dlang/druntime pull request #2881 "Fix issue 20459 - Runtime arg parsing should stop at POSIX delimiter" fixing this issue: - Fix issue 20459 - Runtime arg parsing should stop at POSIX delimiter This makes druntime argument parsing consistent with the behavior of options on POSIX systems. It also ensures that druntime argument can be passed down to other programs, e.g. for 'dub' and 'rdmd'. https://github.com/dlang/druntime/pull/2881

dlang/druntime pull request #2881 "Fix issue 20459 - Runtime arg parsing should stop at POSIX delimiter" was merged into master: - 2f59e46c43afa996a68eaa52cdf4a4b27e619c98 by Geod24: Fix issue 20459 - Runtime arg parsing should stop at POSIX delimiter This makes druntime argument parsing consistent with the behavior of options on POSIX systems. It also ensures that druntime argument can be passed down to other programs, e.g. for 'dub' and 'rdmd'. https://github.com/dlang/druntime/pull/2881