[Bug d/98058] New: libphobos: Support building on *-*-darwin*

[ibuclaw at gdcproject dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98058

            Bug ID: 98058
           Summary: libphobos: Support building on *-*-darwin*
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: d
          Assignee: ibuclaw at gdcproject dot org
          Reporter: ibuclaw at gdcproject dot org
  Target Milestone: ---

This is in continuation of pr87788, but this focuses on issues building the
standard library.