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makeStoreWritable: Use statvfs instead of /proc/self/mountinfo to find out if /nix/store is a read-only bind mount

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/nix/store could be a read-only bind mount even if it is / in its own filesystem, so checking the 4th field in mountinfo is insufficient.

Signed-off-by: Shea Levy <shea@shealevy.com>
This commit is contained in:
Shea Levy 2013-03-07 19:39:55 -05:00 • committed by Eelco Dolstra
parent c3fc60d936
commit 2c9cf50746
2 changed files with 14 additions and 22 deletions
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1
configure.ac
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@ -106,6 +106,7 @@ AC_LANG_POP(C++)
# Check for chroot support (requires chroot() and bind mounts).
AC_CHECK_FUNCS([chroot])
AC_CHECK_FUNCS([unshare])
AC_CHECK_FUNCS([statvfs])
AC_CHECK_HEADERS([sched.h])
AC_CHECK_HEADERS([sys/param.h])
AC_CHECK_HEADERS([sys/mount.h], [], [],