Xcode treats WARNING_CFLAGS as a list, not a flat string.  I should have known better.
Xcode treats WARNING_CFLAGS as a list, not a flat string.  I should have known
better.

old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google,old8xp/gyp_from_google