build: Simplify

meson.build

@@ -3,57 +3,26 @@ project('fadec', ['c'], default_options: ['warning_level=3', 'c_std=c99'])
 python3 = find_program('python3')
 
 if get_option('warning_level').to_int() >= 3
-  add_project_arguments(['-Wmissing-field-initializers',
-                         '-Wunused-parameter',
-                         '-Wold-style-definition',
-                         '-Wmissing-declarations',
-                         '-Wmissing-prototypes',
-                         '-Wmissing-noreturn',
+  add_project_arguments(['-Wmissing-prototypes',
                          '-Wshadow',
-                         '-Wpointer-arith',
-                         '-Wcast-align',
+                         '-Wcast-align=strict',
                          '-Wwrite-strings',
                          '-Winline',
-                         '-Wformat',
-                         '-Wformat-nonliteral',
-                         '-Wformat-security',
                          '-Wswitch-default',
-                         '-Winit-self',
-                         '-Wnested-externs',
                          '-Wstrict-prototypes',
-                         '-Wmissing-include-dirs',
                          '-Wundef',
-                         '-Waggregate-return',
-                         '-Wredundant-decls',
-                         '-Wno-overlength-strings',
-                         '-Wmissing-format-attribute'],
+                         '-Wno-overlength-strings'],
                         language: 'c')
 endif
 
-decode_32 = false
-decode_64 = false
-
-archmode = get_option('archmode')
-if archmode == 'only32' or archmode == 'both'
-  add_project_arguments(['-DARCH_386'], language: 'c')
-  decode_32 = true
-endif
-if archmode == 'only64' or archmode == 'both'
-  add_project_arguments(['-DARCH_X86_64'], language: 'c')
-  decode_64 = true
-endif
-
-if not decode_32 and not decode_64
-  error('no architecture mode')
-endif
-
 generate_args = []
-if decode_32
+if get_option('archmode') != 'only64'
   generate_args += ['--32']
 endif
-if decode_64
+if get_option('archmode') != 'only32'
   generate_args += ['--64']
 endif
+
 instr_data = custom_target('tables',
                            command: [python3, '@INPUT0@', '@INPUT1@', '@OUTPUT@'] + generate_args,
                            input: files('parseinstrs.py', 'instrs.txt'),