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spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Spam-Score: -4.12 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=hotmail.com header.s=selector1 header.b="s/8DY9y3"; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=none) header.from=hotmail.com; spf=pass (aspmx1.migadu.com: domain of help-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=help-guix-bounces@gnu.org X-Migadu-Queue-Id: ACE1B2643 X-Spam-Score: -4.12 X-Migadu-Scanner: scn0.migadu.com X-TUID: /wKrTxYl44JR I am trying to package the Standard ML of New Jersey (SML/NJ) compiler in Guix. My current understanding is that its installation process relies on the existence of /bin/sh in a fundamental way. Is there a way to add /bin/sh to the build environment? In the build phase of the package definition, I tried something like this: (mkdir-p "/bin") (symlink (which "sh") "/bin/sh") However, `mkdir-p` always fails with: ice-9/boot-9.scm:1669:16: In procedure raise-exception: In procedure mkdir: Permission denied