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Cannot make library on EL10 #2

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Cannot make library on EL10#2

Description

@asclepiadae
asclepiadae
opened on Aug 20, 2026

Environment: Alma Linux (EL) 10.2
Applicable packages:

autoconf-2.71-13.el10.noarch                                cpp-14.3.1-4.4.el10.alma.2.x86_64_v2                    
gcc-14.3.1-4.4.el10.alma.2.x86_64_v2                        glibc-devel-2.39-128.el10_2.alma.1.x86_64_v2            
kernel-headers-6.12.0-211.47.1.el10_2.x86_64_v2             libmpc-1.3.1-7.el10.x86_64_v2                           
libxcrypt-devel-4.4.36-10.el10.x86_64_v2                    libzfs7-devel-2.4.3-1.el10.x86_64                       
m4-1.4.19-11.el10.x86_64_v2                                 make-1:4.4.1-9.el10.x86_64_v2                           
perl-File-Compare-1.100.800-512.2.el10_0.noarch             perl-File-Copy-2.41-512.2.el10_0.noarch                 
perl-File-Find-1.44-512.2.el10_0.noarch                     python3-devel-3.12.13-2.el10_2.1.x86_64_v2              
python3-pip-23.3.2-11.el10_2.noarch                         git-2.52.0-1.el10.x86_64_v2
git-core-2.52.0-1.el10.x86_64_v2                            git-core-doc-2.52.0-1.el10.noarch        
perl-Error-1:0.17029-18.el10.noarch                         perl-Git-2.52.0-1.el10.noarch
perl-TermReadKey-2.38-24.el10.x86_64_v2                     perl-lib-0.65-512.2.el10_0.x86_64_v2

Following the readme in https://github.com/45Drives/cockpit-zfs, I am attempting to install this library so I can install the cockpit module but I'm running into some trouble. make fails with both cython-3.2.9 (latest) and 0.29.35 (as specified in the readme) so I cannot install.

I did find that this repo's main branch is essentially unused, but specifying the branch has helped somewhat.
The full command I am attempting to run is:
git clone --single-branch --branch zfs-2.4 https://github.com/45Drives/python3-libzfs.git && cd python3-libzfs && ./configure --prefix=/usr && make && sudo make install

Here are the shell printouts:

cython-3.2.9

user@localhost:~/.venv/libzfs$ pip install cython
Defaulting to user installation because normal site-packages is not writeable
Collecting cython
  Using cached cython-3.2.9-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl.metadata (4.6 kB)
Using cached cython-3.2.9-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl (3.4 MB)
Installing collected packages: cython
Successfully installed cython-3.2.9
user@localhost:~/.venv/libzfs$ cd python3-libzfs && ./configure --prefix=/usr && make
configure: loading site script /usr/share/config.site
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed

-----------------------------------
   RUNNING TESTS ON zfs.h HEADER
-----------------------------------
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for sys/types.h... (cached) yes
checking for sys/fs/zfs.h... yes
checking for ZFS_MAX_DATASET_NAME_LEN defined in sys/fs/zfs.h... yes
configure: Checking existence of special classes in zfs header by verifying ZPOOL_CONFIG_ALLOCATION_BIAS existence
checking for ZPOOL_CONFIG_ALLOCATION_BIAS defined in sys/fs/zfs.h... yes
configure: Checking signature of zfs_prop_valid_for_type in zfs header
configure: 3 PARAMS
configure: Checking existence of VDEV_AUX_ASHIFT_TOO_BIG enum in zfs header
configure: OK
configure: Checking existence of zpool_errata_t
configure: OK
configure: Checking typedef pool_scrub_cmt_t in zfs header
configure: OK
configure: Verifying existence of zpool_rewind_policy_t
configure: NOT FOUND
configure: Verifying existence of zpool_load_policy_t
configure: OK

----------------------------------------
   RUNNING TESTS ON libzutil.h HEADER
----------------------------------------
checking for libzutil.h... yes
configure: OK
configure: Checking existence of zpool_read_label in libzutil.h header
configure: OK
configure: Checking existence of zpool_search_import in libzutil.h header
configure: OK

--------------------------------------
   RUNNING TESTS ON libzfs.h HEADER
--------------------------------------
checking for libzfs.h... yes
configure: Checking zpool_vdev_attach parameters
configure: 6 params
configure: Checking zpool_add parameters
configure: 3 params
configure: Checking for existence of zfs_foreach_mountpoint
configure: OK
configure: Checking function signature zvol_volsize_to_reservation
configure: 3 PARAMS
configure: Checking existence of zpool_search_import in libzfs.h header
configure: NOT FOUND
configure: Checking existence of zpool_events_next in libzfs.h header
configure: OK
configure: Checking existence of zpool_read_label with 2 params in libzfs.h header
configure: NOT FOUND
configure: Checking existence of zpool_read_label with 3 params in libzfs.h header
configure: Checking existence of ZFS Native encryption support  in libzfs.h header
configure: SUPPORTED
configure: Checking existence of vs_*_ashift in fs/zfs.h header
configure: OK
configure: Checking function signature of zpool_get_status
configure: 3 PARAMS
configure: Checking function signature of zpool_scan
configure: 3 params
configure: Checking function signature of zfs_share
configure: 2 params
configure: Checking function signature of zfs_iter_filesystems
configure: 3 params
configure: Checking function signature of zfs_iter_snapspec
configure: 4 params
configure: Checking function signature of zfs_iter_dependents
configure: 4 params
configure: Checking function signature of zfs_iter_bookmarks
configure: 3 params
configure: Checking function signature of zfs_iter_snapshots_sorted
configure: 5 params
configure: Checking function signature of zfs_iter_children
configure: 3 params
configure: Checking function signature of zfs_send_one
configure: 3 params
configure: Checking EZFS_SCRUB_PAUSED presence
configure: OK
configure: Checking ZPOOL_STATUS_ERRATA presence
configure: OK
configure: Checking ZPOOL_STATUS_REBUILDING presence
configure: OK
configure: Checking ZPOOL_STATUS_REBUILD_SCRUB presence
configure: OK
configure: Checking ZPOOL_STATUS_COMPATIBILITY_ERR presence
configure: OK
configure: Checking ZPOOL_STATUS_INCOMPATIBLE_FEAT presence
configure: OK
configure: Checking LZC_SEND_FLAG_EMBED_DATA presence
configure: OK
configure: Checking params for zfs_receive
configure: 6 params
configure: Checking existence of zfs_send_resume and zfs_send_resume_token_to_nvlist
configure: OK
checking for ZFS_MAXNAMELEN defined in libzfs.h... no
configure: Checking existence of renameflags_t in libzfs.h
configure: OK
configure: Checking renameflags_t member names in libzfs.h
configure: RECURSIVE member found
configure: Checking function signature of zfs_rename in libzfs.h
configure: 3 PARAMS
checking for ZPOOL_MAXNAMELEN defined in libzfs.h... no
configure: Checking for resumable member in recvflags_t struct
configure: OK
configure: Checking typedef sendflags_t in libzfs header
configure: OK
configure: Checking attribute name for verbose in sendflags_t struct
configure: Attribute named as verbosity in sendflags_t struct
configure: Checking for dedup member in sendflags_t struct
configure: NOT FOUND
configure: Checking for compress member in sendflags_t struct
configure: OK
configure: Checking for raw member in sendflags_t struct
configure: OK
configure: Checking for backup member in sendflags_t struct
configure: OK
configure: Checking for holds member in sendflags_t struct
configure: OK
configure: Checking for saved member in sendflags_t struct
configure: OK
configure: Checking for progressastitle member in sendflags_t struct
configure: OK

-------------------------------------------
   RUNNING TESTS ON libzfs_core.h HEADER
-------------------------------------------
checking for libzfs_core.h... yes
configure: Verifying lzc_bookmark existence
configure: OK
configure: Verifying existence and params of lzc_send_space
configure: 4 params
configure: Verifying lzc_sync existence
configure: OK
configure: Verifying lzc_wait existence
configure: OK

-----------------------------------------------
   RUNNING TESTS ON zfeature_common.h HEADER
-----------------------------------------------
configure: Verifying existence of zfeature_common.h
checking for zfeature_common.h... yes
configure: OK
configure: Checking supported SPA features

-----------------------------------------
   RUNNING TESTS ON zfs_ioctl.h HEADER
-----------------------------------------
configure: Verifying existence of zfs_ioctl.h
checking for sys/zfs_ioctl.h... no
configure: NOT FOUND

--------------------------------------
   RUNNING TESTS ON nvpair.h HEADER
--------------------------------------
checking for sys/nvpair.h... yes
configure: Nvpair.h header under sys

--------------------------------------------------------
   RUNNING TESTS ON sys/zfs_context_userland.h HEADER
--------------------------------------------------------
checking for sys/zfs_context_userland.h... no

----------------------
   GENERATING FILES
----------------------
configure: creating ./config.status
config.status: creating pxd/config.pxi
config.status: creating pxd/sendflags.pxi
config.status: creating pxd/spa_features.pxi
config.status: creating pxd/userquota_props.pxi
config.status: creating pxd/zpool_status.pxi
config.status: creating config.py
config.status: creating Makefile
rm -f libzfs.c
python3 setup.py build
/usr/lib/python3.12/site-packages/setuptools/__init__.py:80: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
!!

        ********************************************************************************
        Requirements should be satisfied by a PEP 517 installer.
        If you are using pip, you can try `pip install --use-pep517`.
        ********************************************************************************

!!
  dist.fetch_build_eggs(dist.setup_requires)
running build
running build_ext
Compiling libzfs.pyx because it changed.
[1/1] Cythonizing libzfs.pyx
warning: ./pxd/libzfs.pxd:7:0: The 'IF' statement is deprecated and will be removed in a future Cython version. Consider using runtime conditions or C macros instead. See https://github.com/cython/cython/issues/4310
[...]
warning: libzfs.pyx:4638:4: The 'IF' statement is deprecated and will be removed in a future Cython version. Consider using runtime conditions or C macros instead. See https://github.com/cython/cython/issues/4310

Error compiling Cython file:
------------------------------------------------------------
...
                self.set(key, value, nvpair.DATA_TYPE_NVLIST_ARRAY)

            if type(value[0]) is int:
                self.set(key, value, nvpair.DATA_TYPE_INT32_ARRAY)

            if type(value[0]) is long:
                                 ^
------------------------------------------------------------
nvpair.pxi:380:33: undeclared name not builtin: long
warning: libzfs.pyx:1336:27: Assigning to 'pool_config_ops_t *' from 'const pool_config_ops_t *' discards const qualifier
Traceback (most recent call last):
  File "/home/user/.venv/libzfs/python3-libzfs/setup.py", line 51, in <module>
    setup(
  File "/usr/lib/python3.12/site-packages/setuptools/__init__.py", line 103, in setup
    return distutils.core.setup(**attrs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 185, in setup
    return run_commands(dist)
           ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/core.py", line 201, in run_commands
    dist.run_commands()
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 969, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.12/site-packages/setuptools/dist.py", line 963, in run_command
    super().run_command(command)
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
    cmd_obj.run()
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/command/build.py", line 131, in run
    self.run_command(cmd_name)
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/cmd.py", line 318, in run_command
    self.distribution.run_command(command)
  File "/usr/lib/python3.12/site-packages/setuptools/dist.py", line 963, in run_command
    super().run_command(command)
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/dist.py", line 988, in run_command
    cmd_obj.run()
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/command/build_ext.py", line 345, in run
    self.build_extensions()
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/command/build_ext.py", line 467, in build_extensions
    self._build_extensions_serial()
  File "/usr/lib/python3.12/site-packages/setuptools/_distutils/command/build_ext.py", line 493, in _build_extensions_serial
    self.build_extension(ext)
  File "/home/user/.local/lib/python3.12/site-packages/Cython/Distutils/build_ext.py", line 131, in build_extension
    new_ext = cythonize(
              ^^^^^^^^^^
  File "/home/user/.local/lib/python3.12/site-packages/Cython/Build/Dependencies.py", line 1153, in cythonize
    cythonize_one(*args)
  File "/home/user/.local/lib/python3.12/site-packages/Cython/Build/Dependencies.py", line 1297, in cythonize_one
    raise CompileError(None, pyx_file)
Cython.Compiler.Errors.CompileError: libzfs.pyx
make: *** [Makefile:20: libzfs.c] Error 1

There were a lot of IF warnings that I cut out.

Switch Cython Version

user@localhost:~/.venv/libzfs/python3-libzfs$ pip uninstall cython && pip install cython==0.29.35
Found existing installation: Cython 3.2.9
Uninstalling Cython-3.2.9:
  Would remove:
    /home/user/.local/bin/cygdb
    /home/user/.local/bin/cython
    /home/user/.local/bin/cythonize
    /home/user/.local/lib/python3.12/site-packages/Cython/*
    /home/user/.local/lib/python3.12/site-packages/cython-3.2.9.dist-info/*
    /home/user/.local/lib/python3.12/site-packages/cython.py
    /home/user/.local/lib/python3.12/site-packages/pyximport/*
Proceed (Y/n)? y
  Successfully uninstalled Cython-3.2.9
Defaulting to user installation because normal site-packages is not writeable
Collecting cython==0.29.35
  Using cached Cython-0.29.35-py2.py3-none-any.whl.metadata (3.1 kB)
Using cached Cython-0.29.35-py2.py3-none-any.whl (988 kB)
Installing collected packages: cython
Successfully installed cython-0.29.35

Cython 0.29.35

user@localhost:~/.venv/libzfs/python3-libzfs$ ./configure --prefix=/usr && make
configure: loading site script /usr/share/config.site
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed

-----------------------------------
   RUNNING TESTS ON zfs.h HEADER
-----------------------------------
checking for stdio.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for strings.h... yes
checking for sys/stat.h... yes
checking for sys/types.h... yes
checking for unistd.h... yes
checking for sys/types.h... (cached) yes
checking for sys/fs/zfs.h... yes
checking for ZFS_MAX_DATASET_NAME_LEN defined in sys/fs/zfs.h... yes
configure: Checking existence of special classes in zfs header by verifying ZPOOL_CONFIG_ALLOCATION_BIAS existence
checking for ZPOOL_CONFIG_ALLOCATION_BIAS defined in sys/fs/zfs.h... yes
configure: Checking signature of zfs_prop_valid_for_type in zfs header
configure: 3 PARAMS
configure: Checking existence of VDEV_AUX_ASHIFT_TOO_BIG enum in zfs header
configure: OK
configure: Checking existence of zpool_errata_t
configure: OK
configure: Checking typedef pool_scrub_cmt_t in zfs header
configure: OK
configure: Verifying existence of zpool_rewind_policy_t
configure: NOT FOUND
configure: Verifying existence of zpool_load_policy_t
configure: OK

----------------------------------------
   RUNNING TESTS ON libzutil.h HEADER
----------------------------------------
checking for libzutil.h... yes
configure: OK
configure: Checking existence of zpool_read_label in libzutil.h header
configure: OK
configure: Checking existence of zpool_search_import in libzutil.h header
configure: OK

--------------------------------------
   RUNNING TESTS ON libzfs.h HEADER
--------------------------------------
checking for libzfs.h... yes
configure: Checking zpool_vdev_attach parameters
configure: 6 params
configure: Checking zpool_add parameters
configure: 3 params
configure: Checking for existence of zfs_foreach_mountpoint
configure: OK
configure: Checking function signature zvol_volsize_to_reservation
configure: 3 PARAMS
configure: Checking existence of zpool_search_import in libzfs.h header
configure: NOT FOUND
configure: Checking existence of zpool_events_next in libzfs.h header
configure: OK
configure: Checking existence of zpool_read_label with 2 params in libzfs.h header
configure: NOT FOUND
configure: Checking existence of zpool_read_label with 3 params in libzfs.h header
configure: Checking existence of ZFS Native encryption support  in libzfs.h header
configure: SUPPORTED
configure: Checking existence of vs_*_ashift in fs/zfs.h header
configure: OK
configure: Checking function signature of zpool_get_status
configure: 3 PARAMS
configure: Checking function signature of zpool_scan
configure: 3 params
configure: Checking function signature of zfs_share
configure: 2 params
configure: Checking function signature of zfs_iter_filesystems
configure: 3 params
configure: Checking function signature of zfs_iter_snapspec
configure: 4 params
configure: Checking function signature of zfs_iter_dependents
configure: 4 params
configure: Checking function signature of zfs_iter_bookmarks
configure: 3 params
configure: Checking function signature of zfs_iter_snapshots_sorted
configure: 5 params
configure: Checking function signature of zfs_iter_children
configure: 3 params
configure: Checking function signature of zfs_send_one
configure: 3 params
configure: Checking EZFS_SCRUB_PAUSED presence
configure: OK
configure: Checking ZPOOL_STATUS_ERRATA presence
configure: OK
configure: Checking ZPOOL_STATUS_REBUILDING presence
configure: OK
configure: Checking ZPOOL_STATUS_REBUILD_SCRUB presence
configure: OK
configure: Checking ZPOOL_STATUS_COMPATIBILITY_ERR presence
configure: OK
configure: Checking ZPOOL_STATUS_INCOMPATIBLE_FEAT presence
configure: OK
configure: Checking LZC_SEND_FLAG_EMBED_DATA presence
configure: OK
configure: Checking params for zfs_receive
configure: 6 params
configure: Checking existence of zfs_send_resume and zfs_send_resume_token_to_nvlist
configure: OK
checking for ZFS_MAXNAMELEN defined in libzfs.h... no
configure: Checking existence of renameflags_t in libzfs.h
configure: OK
configure: Checking renameflags_t member names in libzfs.h
configure: RECURSIVE member found
configure: Checking function signature of zfs_rename in libzfs.h
configure: 3 PARAMS
checking for ZPOOL_MAXNAMELEN defined in libzfs.h... no
configure: Checking for resumable member in recvflags_t struct
configure: OK
configure: Checking typedef sendflags_t in libzfs header
configure: OK
configure: Checking attribute name for verbose in sendflags_t struct
configure: Attribute named as verbosity in sendflags_t struct
configure: Checking for dedup member in sendflags_t struct
configure: NOT FOUND
configure: Checking for compress member in sendflags_t struct
configure: OK
configure: Checking for raw member in sendflags_t struct
configure: OK
configure: Checking for backup member in sendflags_t struct
configure: OK
configure: Checking for holds member in sendflags_t struct
configure: OK
configure: Checking for saved member in sendflags_t struct
configure: OK
configure: Checking for progressastitle member in sendflags_t struct
configure: OK

-------------------------------------------
   RUNNING TESTS ON libzfs_core.h HEADER
-------------------------------------------
checking for libzfs_core.h... yes
configure: Verifying lzc_bookmark existence
configure: OK
configure: Verifying existence and params of lzc_send_space
configure: 4 params
configure: Verifying lzc_sync existence
configure: OK
configure: Verifying lzc_wait existence
configure: OK

-----------------------------------------------
   RUNNING TESTS ON zfeature_common.h HEADER
-----------------------------------------------
configure: Verifying existence of zfeature_common.h
checking for zfeature_common.h... yes
configure: OK
configure: Checking supported SPA features

-----------------------------------------
   RUNNING TESTS ON zfs_ioctl.h HEADER
-----------------------------------------
configure: Verifying existence of zfs_ioctl.h
checking for sys/zfs_ioctl.h... no
configure: NOT FOUND

--------------------------------------
   RUNNING TESTS ON nvpair.h HEADER
--------------------------------------
checking for sys/nvpair.h... yes
configure: Nvpair.h header under sys

--------------------------------------------------------
   RUNNING TESTS ON sys/zfs_context_userland.h HEADER
--------------------------------------------------------
checking for sys/zfs_context_userland.h... no

----------------------
   GENERATING FILES
----------------------
configure: creating ./config.status
config.status: creating pxd/config.pxi
config.status: creating pxd/sendflags.pxi
config.status: creating pxd/spa_features.pxi
config.status: creating pxd/userquota_props.pxi
config.status: creating pxd/zpool_status.pxi
config.status: creating config.py
config.status: creating Makefile
rm -f libzfs.c
python3 setup.py build
/usr/lib/python3.12/site-packages/setuptools/__init__.py:80: _DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
!!

        ********************************************************************************
        Requirements should be satisfied by a PEP 517 installer.
        If you are using pip, you can try `pip install --use-pep517`.
        ********************************************************************************

!!
  dist.fetch_build_eggs(dist.setup_requires)
running build
running build_ext
cythoning libzfs.pyx to libzfs.c
building 'libzfs' extension
gcc -fno-strict-overflow -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -fexceptions -fcf-protection -fexceptions -fcf-protection -fexceptions -fcf-protection -O3 -fPIC -I/usr/include/python3.12 -c libzfs.c -o build/temp.linux-x86_64-cpython-312/libzfs.o -DCYTHON_FALLTHROUGH= -I/usr/include/libzfs -I/usr/include/libspl -D_MACHINE_ENDIAN_H_ -DHAVE_ISSETUGID -D_GNU_SOURCE -Werror=implicit-function-declaration -Wno-error=incompatible-pointer-types
libzfs.c: In function ‘__pyx_f_6libzfs_6NVList___get_value’:
libzfs.c:6389:47: warning: passing argument 2 of ‘nvpair_value_string’ from incompatible pointer type [-Wincompatible-pointer-types]
 6389 |     (void)(nvpair_value_string(__pyx_v_pair, (&__pyx_v_cstr)));
      |                                              ~^~~~~~~~~~~~~~
      |                                               |
      |                                               char **
In file included from /usr/include/libzfs/libnvpair.h:30,
                 from /usr/include/libzfs/libzfs.h:41,
                 from libzfs.c:748:
/usr/include/libzfs/sys/nvpair.h:294:57: note: expected ‘const char **’ but argument is of type ‘char **’
  294 | _SYS_NVPAIR_H int nvpair_value_string(const nvpair_t *, const char **);
      |                                                         ^~~~~~~~~~~~~
libzfs.c:7362:53: warning: passing argument 2 of ‘nvpair_value_string_array’ from incompatible pointer type [-Wincompatible-pointer-types]
 7362 |     (void)(nvpair_value_string_array(__pyx_v_pair, ((char ***)(&__pyx_v_carray)), (&__pyx_v_carraylen)));
      |                                                    ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                     |
      |                                                     char ***
/usr/include/libzfs/sys/nvpair.h:307:57: note: expected ‘const char ***’ but argument is of type ‘char ***’
  307 | _SYS_NVPAIR_H int nvpair_value_string_array(nvpair_t *, const char ***,
      |                                                         ^~~~~~~~~~~~~~
libzfs.c: In function ‘__pyx_pf_6libzfs_6NVList_15set’:
libzfs.c:9224:73: warning: passing argument 3 of ‘nvlist_add_string_array’ from incompatible pointer type [-Wincompatible-pointer-types]
 9224 |       (void)(nvlist_add_string_array(__pyx_v_self->handle, __pyx_t_34, ((char **)__pyx_v_carray), __pyx_t_29));
      |                                                                        ~^~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                         |
      |                                                                         char **
/usr/include/libzfs/sys/nvpair.h:205:5: note: expected ‘const char * const*’ but argument is of type ‘char **’
  205 |     const char * const *, uint_t);
      |     ^~~~~~~~~~~~~~~~~~~~
libzfs.c:10610:73: warning: passing argument 3 of ‘nvlist_add_nvlist_array’ from incompatible pointer type [-Wincompatible-pointer-types]
10610 |       (void)(nvlist_add_nvlist_array(__pyx_v_self->handle, __pyx_t_45, ((nvlist_t **)__pyx_v_carray), __pyx_t_29));
      |                                                                        ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                         |
      |                                                                         nvlist_t ** {aka struct nvlist **}
/usr/include/libzfs/sys/nvpair.h:207:5: note: expected ‘const nvlist_t * const*’ {aka ‘const struct nvlist * const*’} but argument is of type ‘nvlist_t **’ {aka ‘struct nvlist **’}
  207 |     const nvlist_t * const *, uint_t);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~
libzfs.c: In function ‘__pyx_gb_6libzfs_7ZFSPool_14generator9’:
libzfs.c:59102:3: warning: ‘Py_OptimizeFlag’ is deprecated [-Wdeprecated-declarations]
59102 |   if (unlikely(!Py_OptimizeFlag)) {
      |   ^~
In file included from /usr/include/python3.12/Python.h:48,
                 from libzfs.c:6:
/usr/include/python3.12/cpython/pydebug.h:13:37: note: declared here
   13 | Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_OptimizeFlag;
      |                                     ^~~~~~~~~~~~~~~
libzfs.c: In function ‘__pyx_pf_6libzfs_7ZFSPool_11status_code___get__’:
libzfs.c:60817:89: warning: passing argument 2 of ‘zpool_get_status’ from incompatible pointer type [-Wincompatible-pointer-types]
60817 |     __pyx_t_4 = __Pyx_PyInt_From_zpool_status_t(zpool_get_status(__pyx_v_self->handle, (&__pyx_v_msg_id), NULL)); if (unlikely(!__pyx_t_4)) __PYX_ERR(1, 2932, __pyx_L1_error)
      |                                                                                        ~^~~~~~~~~~~~~~~~
      |                                                                                         |
      |                                                                                         char **
/usr/include/libzfs/libzfs.h:471:61: note: expected ‘const char **’ but argument is of type ‘char **’
  471 | _LIBZFS_H zpool_status_t zpool_get_status(zpool_handle_t *, const char **,
      |                                                             ^~~~~~~~~~~~~
libzfs.c: In function ‘__pyx_pf_6libzfs_11ZFSResource_5userspace’:
libzfs.c:74790:86: warning: passing argument 3 of ‘zfs_userspace’ from incompatible pointer type [-Wincompatible-pointer-types]
74790 |           __pyx_v_ret = zfs_userspace(__pyx_v_self->__pyx_base.handle, __pyx_v_prop, __pyx_f_6libzfs_11ZFSResource__userspace_cb, ((void *)__pyx_v_result));
      |                                                                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                                      |
      |                                                                                      int (*)(void *, const char *, uint32_t,  uint64_t) {aka int (*)(void *, const char *, unsigned int,  long unsigned int)}
/usr/include/libzfs/libzfs.h:877:5: note: expected ‘zfs_userspace_cb_t’ {aka ‘int (*)(void *, const char *, unsigned int,  long unsigned int,  long unsigned int)’} but argument is of type ‘int (*)(void *, const char *, uint32_t,  uint64_t)’ {aka ‘int (*)(void *, const char *, unsigned int,  long unsigned int)’}
  877 |     zfs_userspace_cb_t, void *);
      |     ^~~~~~~~~~~~~~~~~~
libzfs.c: In function ‘__pyx_pf_6libzfs_10ZFSDataset_12destroy_snapshot’:
libzfs.c:86251:85: warning: passing argument 2 of ‘zfs_destroy_snaps’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
86251 |         __pyx_v_ret = zfs_destroy_snaps(__pyx_v_self->__pyx_base.__pyx_base.handle, __pyx_v_c_name, __pyx_v_defer_deletion);
      |                                                                                     ^~~~~~~~~~~~~~
/usr/include/libzfs/libzfs.h:771:49: note: expected ‘char *’ but argument is of type ‘const char *’
  771 | _LIBZFS_H int zfs_destroy_snaps(zfs_handle_t *, char *, boolean_t);
      |                                                 ^~~~~~
gcc -shared build/temp.linux-x86_64-cpython-312/libzfs.o -L/usr/lib64 -lnvpair -lzfs -lzfs_core -luutil -o build/lib.linux-x86_64-cpython-312/libzfs.cpython-312-x86_64-linux-gnu.so -L/usr/lib

Ultimately I'm unsure if this is a bug in the library, a problem with dependencies, or something else. I'm not familiar enough with Python unforunately to troubleshoot this further.

Thanks!

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