elif target_os not in ['darwin','ios']:
liboctbstack_env.AppendUnique(CFLAGS = ['-fPIC'])
if target_os in ['darwin', 'ios']:
+ env.AppendUnique(CPPDEFINES = ['_DARWIN_C_SOURCE'])
liboctbstack_env.AppendUnique(CPPDEFINES = ['_DARWIN_C_SOURCE'])
liboctbstack_env.AppendUnique(LIBPATH = [env.get('BUILD_DIR')])
if target_os not in ['arduino']: