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2b930f63f8
statx(2) requires _GNU_SOURCE to be defined in order for sys/stat.h to
produce a definition for struct statx and the STATX_* defines. We get
that at compile time because we pass -D_GNU_SOURCE through to
everything, but in the configure check we aren't setting _GNU_SOURCE, so
we don't find STATX_MNT_ID, and so don't set HAVE_STATX_MNT_ID.
(This was fine before ccf5a8a6fc, because linux/stat.h does not require
_GNU_SOURCE).
Simple fix: in the check, define _GNU_SOURCE before including
sys/stat.h.
Sponsored-by: TrueNAS
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@truenas.com>
Closes #18312
37 lines
906 B
Plaintext
37 lines
906 B
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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dnl #
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dnl # Check for statx() function and STATX_MNT_ID availability
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER_STATX], [
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AC_CHECK_HEADERS([sys/stat.h],
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[have_stat_headers=yes],
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[have_stat_headers=no])
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AS_IF([test "x$have_stat_headers" = "xyes"], [
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AC_CHECK_FUNC([statx], [
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AC_DEFINE([HAVE_STATX], [1], [statx() is available])
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dnl Check for STATX_MNT_ID availability
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AC_MSG_CHECKING([for STATX_MNT_ID])
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AC_COMPILE_IFELSE([
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AC_LANG_PROGRAM([[
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#define _GNU_SOURCE
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#include <sys/stat.h>
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]], [[
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struct statx stx;
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int mask = STATX_MNT_ID;
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(void)mask;
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(void)stx.stx_mnt_id;
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]])
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], [
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AC_MSG_RESULT([yes])
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AC_DEFINE([HAVE_STATX_MNT_ID], [1], [STATX_MNT_ID is available])
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], [
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AC_MSG_RESULT([no])
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])
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])
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], [
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AC_MSG_WARN([sys/stat.h not found; skipping statx support])
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])
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]) dnl end AC_DEFUN
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