Refer to the Mac OS X 10.5 SDK as "macosx10.5" as Xcode does, instead of by path as our .xcconfigs did.  Don't append to WARNING_CFLAGS, just set it, to let list operations do their jobs.
Refer to the Mac OS X 10.5 SDK as "macosx10.5" as Xcode does, instead of by
path as our .xcconfigs did.  Don't append to WARNING_CFLAGS, just set it, to
let list operations do their jobs.

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