[Bug d/104317] D language: rt.config module doesn't work as expected in GDC 9/10 (multiple definition linker error)

[siarhei.siamashka at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104317

--- Comment #1 from Siarhei Siamashka <siarhei.siamashka at gmail dot com> ---
An attempted fix for the linker error had been introduced in GDC11 via:
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99914

But it made function templates non-inlineable as a side effect:
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102765

Also cmdline arguments with "--DRT-" prefix are still incorrectly filtered out:

$ gdc-11.2.0 test.d && ./a.out
--DRT-this-cmdline-argument-should-not-be-filtered-out
["./a.out"]

It would be useful to have a better fix for this problem.