wasm support

meson.build

@@ -11,6 +11,12 @@ if not py_version.version_compare('>=3.6')
 endif
 
 cc = meson.get_compiler('c')
+if get_option('wasm_build')
+  add_project_arguments('--target=wasm32', language: 'c')
+  add_project_arguments(['-nostdlib', '-fvisibility=default'], language: 'c')
+
+endif
+
 if cc.has_argument('-fstrict-aliasing')
   add_project_arguments('-fstrict-aliasing', language: 'c')
 endif
@@ -99,11 +105,13 @@ fadec = declare_dependency(link_with: libfadec,
                            sources: tables)
 install_headers(headers)
 
-foreach component : components
+if get_option('wasm_build') == false
+  foreach component : components
     test(component, executable('@0@-test'.format(component),
                               '@0@-test.c'.format(component),
                               dependencies: fadec))
-endforeach
+  endforeach
+endif
 
 if meson.version().version_compare('>=0.54.0')
   meson.override_dependency('fadec', fadec)

meson_options.txt

@@ -4,3 +4,4 @@ option('with_decode', type: 'boolean', value: true)
 option('with_encode', type: 'boolean', value: true)
 # encode2 is off-by-default to reduce size and compile-time
 option('with_encode2', type: 'boolean', value: false)
+option('wasm_build', type: 'boolean', value: false)