7d11e37e55
Historically libblkid support was detected as part of configure and optionally enabled. This was done because at the time support for detecting ZFS pool vdevs had just be added to libblkid and those updated packages were not yet part of many distributions. This is no longer the case and any reasonably current distribution will ship a version of libblkid which can detect ZFS pool vdevs. This patch makes libblkid mandatory at build time and libblkid the preferred method of scanning for ZFS pools. For distributions which include a modern version of libblkid there is no change in behavior. Explicitly scanning the default search paths is still supported and can be enabled with the '-s' command line option. Additionally making libblkid mandatory means that the 'zpool create' command can reliably detect if a specified device has an existing non-ZFS filesystem (ext4, xfs) and print a warning. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2448
14 lines
393 B
Plaintext
14 lines
393 B
Plaintext
dnl #
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dnl # Check for libblkid. Basic support for detecting ZFS pools
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dnl # has existing in blkid since 2008.
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER_LIBBLKID], [
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LIBBLKID=
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AC_CHECK_HEADER([blkid/blkid.h], [], [AC_MSG_FAILURE([
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*** blkid.h missing, libblkid-devel package required])])
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AC_SUBST([LIBBLKID], ["-lblkid"])
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AC_DEFINE([HAVE_LIBBLKID], 1, [Define if you have libblkid])
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])
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