Only call grantpt on MacOS systems #3547
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The commit 3cc1125 adds a `grantpt` call on the builder pseudo terminal fd. This call is actually only required for MacOS, but it however requires a RW access to /dev/pts which is only RO bindmounted in the Bazel Linux sandbox. So, Nix can not be actually run in the Bazel Linux sandbox for unneeded reasons.
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The commit 3cc1125 adds a
grantptcall on the builder pseudo terminal fd. This call is actually only
required for MacOS, but it however requires a RW access to /dev/pts
which is only RO bindmounted in the Bazel Linux sandbox. So, Nix can
not be actually run in the Bazel Linux sandbox for unneeded reasons.
Note, on a Linux systems with a mono user Nix installation, the grantpt
call removes the write permission to the group
ttyon the pseudoterminal file.