add utf8 string size and remove string dep

meson.build

@@ -1,31 +1,42 @@
 project(
   'hack', 
   'cpp', 
-  version : '0.0.1', 
-  default_options : ['cpp_std=c++20']
-)
+  version : run_command('jq', '-r', '.version', join_paths(meson.source_root(), 'props.json'), check: true).stdout().strip(),
+  default_options : [
+    'warning_level=1',
+    'optimization=3',
+    'default_library=static',
+    'cpp_std=c++20',
+])
 
 add_project_arguments (
   '-Wpedantic',
-  '-Wshadow', 
+  '-Wno-shadow', 
+  '-Wno-unused-but-set-variable',
   '-Wno-comment',
-  '-Wno-gnu-zero-variadic-macro-arguments',
-  '-Wunused-but-set-variable',
+  '-Wno-unused-parameter',
+  '-Wno-unused-value',
+  '-Wno-missing-field-initializers',
+  '-Wno-narrowing',
+  '-Wno-deprecated-enum-enum-conversion',
+  '-Wno-volatile',
   language: 'cpp'
 )
 
 #############################################################
 
-deps = []
-args = []
+deps = [
+  dependency('boost'),
+  dependency('uuid'),
+  subproject('nlohmann_json').get_variable('nlohmann_json_dep')
+]
+
+args = [
+  '-luuid'
+]
+
 inc = []
 
-deps += dependency('boost')
-deps += dependency('uuid')
-deps += subproject('nlohmann_json').get_variable('nlohmann_json_dep')
-
-args += '-luuid'
-
 #############################################################
 
 subdir('src')