mariadb/mysql-test/include/have_udf.inc

#
# Check if server has support for loading plugins
#
if (`SELECT @@have_dynamic_loading != 'YES'`) {
  --skip UDF requires dynamic loading
}

#
# Check if the variable UDF_EXAMPLE_LIB is set
#
if (`SELECT LENGTH('$UDF_EXAMPLE_LIB') = 0`) {
  --skip UDF requires the environment variable \$UDF_EXAMPLE_LIB to be set (normally done by mtr)
}

#
# Check if --plugin-dir was setup for udf
#
if (`SELECT CONCAT('--plugin-dir=', @@plugin_dir) != '$UDF_EXAMPLE_LIB_OPT'`) {
  --skip UDF requires that --plugin-dir is set to the udf plugin dir (either the .opt file does not contain \$UDF_EXAMPLE_LIB_OPT or another plugin is in use)
}