'visibility%': 'hidden', # V8's visibility setting
'target_arch%': 'ia32', # set v8's target architecture
'host_arch%': 'ia32', # set v8's host architecture
+ 'want_separate_host_toolset': 0, # V8 should not build target and host
'library%': 'static_library', # allow override to 'shared_library' for DLL/.so builds
'component%': 'static_library', # NB. these names match with what V8 expects
'msvs_multi_core_compile': '0', # we do enable multicore compiles, but not using the V8 way