Bernardo Meurer da1629d744 nix-build: set execfail ... When starting a nix-shell with `-i` it was previously possible for it to silently fail in the scenario where the specified interpreter didn't exist. This happened due to the `exec` call masking the issue. With this change we enable `execfail`, which causes the script using `nix-shell` as interpreter to correctly exit with code 127. Fixes: #4598 (cherry picked from commit 6e849e3b0a)		2021-03-08 02:09:12 -08:00
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nix-build.cc	nix-build: set execfail	2021-03-08 02:09:12 -08:00