[Issue 16580] [REG 2.072.0-b1] spawnShell segfaults on macOS

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16580

--- Comment #3 from github-bugzilla at puremagic.com ---
Commit pushed to stable at https://github.com/dlang/phobos

https://github.com/dlang/phobos/commit/ebbdf21a7ebc6730a3d5f170b934143bdb18a414
fix Issue 16580 - spawnShell segfaults on macOS

- partially Revert "Merge pull request #4493 from schveiguy/fixcycles2"
- recreate processinit (and import it from std.process)
  to call std.process shared ctor w/o creating a cycle
- keep it separate from phobosinit to not drag std.encoding
  into any binary using std.process

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