+ case "${usergroup_phase}" in
+ local run_cmd
+ run_cmd=run_su
+ shift
+ run_su /opt/local/bin/bmake all BATCH=1 DEPENDS_TARGET=/nonexistent PYTHON_VERSION_REQD=310 MYSQL_VERSION_REQD=56 WRKLOG=/tmp/bulklog/py310-mysql56client-2.2.4/work.log
+ su pbulk -c '"$@"' make /opt/local/bin/bmake all BATCH=1 DEPENDS_TARGET=/nonexistent PYTHON_VERSION_REQD=310 MYSQL_VERSION_REQD=56 WRKLOG=/tmp/bulklog/py310-mysql56client-2.2.4/work.log
=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Building for py310-mysql56client-2.2.4
* Building wheel...
Trying pkg-config --exists mysqlclient
Command 'pkg-config --exists mysqlclient' returned non-zero exit status 1.
Trying pkg-config --exists mariadb
Command 'pkg-config --exists mariadb' returned non-zero exit status 1.
Trying pkg-config --exists libmariadb
Command 'pkg-config --exists libmariadb' returned non-zero exit status 1.
Traceback (most recent call last):
  File "/opt/local/lib/python3.10/site-packages/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
    main()
  File "/opt/local/lib/python3.10/site-packages/pyproject_hooks/_in_process/_in_process.py", line 335, in main
    json_out['return_val'] = hook(**hook_input['kwargs'])
  File "/opt/local/lib/python3.10/site-packages/pyproject_hooks/_in_process/_in_process.py", line 251, in build_wheel
    return _build_backend().build_wheel(wheel_directory, config_settings,
  File "/opt/local/lib/python3.10/site-packages/setuptools/build_meta.py", line 404, in build_wheel
    return self._build_with_temp_dir(
  File "/opt/local/lib/python3.10/site-packages/setuptools/build_meta.py", line 389, in _build_with_temp_dir
    self.run_setup()
  File "/opt/local/lib/python3.10/site-packages/setuptools/build_meta.py", line 311, in run_setup
    exec(code, locals())
  File "<string>", line 155, in <module>
  File "<string>", line 49, in get_config_posix
  File "<string>", line 28, in find_package_name
Exception: Can not find valid pkg-config name.
Specify MYSQLCLIENT_CFLAGS and MYSQLCLIENT_LDFLAGS env vars manually

ERROR Backend subprocess exited when trying to invoke build_wheel
*** Error code 1

Stop.
bmake[1]: stopped in /data/jenkins/workspace/pkgsrc-trunk-x86_64/databases/py-mysqlclient
*** Error code 1

Stop.
bmake: stopped in /data/jenkins/workspace/pkgsrc-trunk-x86_64/databases/py-mysqlclient