From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nikita Karetnikov <nikita@karetnikov.org>
Subject: Re: Grue Hunter: Can't create directories in the store
Date: Fri, 24 May 2013 18:34:31 +0400
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How can I unpack the tarball?  The following returns "In execvp of tar:
No such file or directory."

(arguments `(#:modules ...
			 #:builder
			 (begin
			   ...
			   (let* ((tarball (assoc-ref %build-inputs "tarball"))
					  ...)
				 (system* "tar" "xvf" tarball)
				 ...))))

(inputs `(...
		  ("tarball" ,source)))

(display tarball) returns '/nix/store/6xwqfw5k58l0bhzzm8s81rrkmhm88vk4-grue-hunter.tar.gz'.

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