[#3443] Proof of Concept: meson

src/lib/mysql/meson.build

@@ -0,0 +1,18 @@
+if not mysql.found()
+  subdir_done()
+endif
+
+kea_mysql_lib = library('kea-mysql',
+  'mysql_binding.cc',
+  'mysql_binding.h',
+  'mysql_connection.cc',
+  'mysql_connection.h',
+  'mysql_constants.h',
+  cpp_args: [f'-DKEA_ADMIN="@kea_admin@"'],
+  dependencies: [mysql],
+  include_directories: [include_directories('.')] + includes,
+  install: true,
+  install_dir: 'lib',
+  link_with: libs_built_so_far,
+)
+libs_built_so_far += [kea_mysql_lib]