Fail early in *nix build script #16724
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Adding one more 1 exit early safeguard in *nix build scripts:
Given the initial cd into the build tree fails (the project root),
the
buildconf
script exits with non-zero status (failure).Additionally quoting the pathname to cd into and the empty CD_PATH parameter for portability, also for systems that are using a non-portable pathname 2 for the build tree.