use nix build & meson & zlog

src/meson.build

@@ -0,0 +1,28 @@
+project('xce',
+        ['c'],
+        version: '0.0.1',
+        meson_version: '>=1.5',
+        default_options: [
+          'c_std=gnu17',
+          'c_args=-DDEBUG -O1'])
+
+with_debug=false
+
+if get_option('with_debug')
+  # add -DWITH_DEBUG=1
+  add_project_arguments('-DWITH_DEBUG=1', language: 'c')
+  with_debug=true
+endif
+
+if get_option('without_db')
+  add_project_arguments('-DWITHOUT_DB=1', language: 'c')
+endif
+
+add_project_arguments('-DVERSION_COMMIT_ID='+get_option('commit_id'), language: 'c')
+
+include_dir = include_directories('include', 'include/xce')
+
+subdir('lib')
+# subdir('controller')
+# subdir('worker')
+# subdir('scheduler')