cf37e9276d
This fixes a logging error observed on macOS 11.0.1 (Big Sur). When performing a Spack install in debugging mode (e.g. `spack -d install py-scipy`) Spack is supposed to write a log of compiler wrapper command line invocations to the current working directory. Due to a regression error introduced by #18205, these files were no-longer generated, and Spack was printing errors such as "No such file or directory: None/." This is because the log file directory gets set from `spack.main.spack_working_dir`, but that variable is not set in the spawned process. This PR ensures that the working directory (at the time of the "spack install" invocation) is persisted to the subprocess. |
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