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build.cc: fix bind-mount of /dev/{pts,ptmx} fallback

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Don't bind-mount these to themselves,
mount them into the chroot directory.

Fixes pty issues when using sandbox on CentOS 7.4.
(build of perlPackages.IOTty fails before this change)

(cherry picked from commit 6d9129014d)
This commit is contained in:
Will Dietz 2018-04-20 11:55:04 -05:00 • committed by Eelco Dolstra
parent 8eceb32e0a
commit 686241825c
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1 changed files with 2 additions and 2 deletions
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4
src/libstore/build.cc
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@ -2691,8 +2691,8 @@ void DerivationGoal::runChild()
} else {
if (errno != EINVAL)
throw SysError("mounting /dev/pts");
doBind("/dev/pts", "/dev/pts");
doBind("/dev/ptmx", "/dev/ptmx");
doBind("/dev/pts", chrootRootDir + "/dev/pts");
doBind("/dev/ptmx", chrootRootDir + "/dev/ptmx");
}
}