[Bug 257222] Cannot use libzfs.h from user space programs due to missing libnvpair.h and other dependencies

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 02 Jan 2022 15:44:24 UTC

Michael Gmelin <grembo@FreeBSD.org> changed:

           What    |Removed                     |Added
           Severity|Affects Only Me             |Affects Some People
             Status|Closed                      |Open
                 CC|                            |grembo@FreeBSD.org
         Resolution|Works As Intended           |---

--- Comment #2 from Michael Gmelin <grembo@FreeBSD.org> ---
(In reply to Alan Somers from comment #1)

Re-opening, as even if using libzfs_core.h kernel sources are required, so all
the problems described by the bug author still exist.

This is how /usr/include/libzfs_core.h begins:

#ifndef _LIBZFS_CORE_H
#define _LIBZFS_CORE_H

#include <libnvpair.h>

Minimal example:

$ cat >test.c <<EOF
#include <libzfs_core.h>

int main()


$ cc test.c
/usr/include/libzfs_core.h:32:10: fatal error: 'libnvpair.h' file not found
#include <libnvpair.h>
1 error generated.

$ find / -name libnvpair.h

Try adding it to the search path:

$ cc -I/usr/src/sys/contrib/openzfs/include test.c
tons of errors, many more include paths required...

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