[build-script] Overzealous path expansion #13319
Merged
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Purpose
This PR fixes some overzealous path expansion for the
--build-subdir
argument which attempts to expand the build subdirectory path as much as possible due to changes introduced yesterday by #13231. When the path is expanded out to an absolute path it will then cause all build directories to generate relative to wherebuild-script
was invoked, rather than the standardbuild
directory above the Swift workspace.rdar://35913659