Options at the moment:
Work through errors, generate a new "all-in-one" version of the zxing-cpp files,
Attempt to reference the zxing-cpp project without munging into an all-in-one version. Will need further updates to the plugin project to support this, or
Find an elusive alternate cordova barcode scanner plugin that works for both android & iOS, that supports all the formats needed (mainly CODE_128 & CODABAR) on both platforms.
For 1 & 2, they both need rebuilds of the plugin itself... I need to level-up in the ways of cordova/phonegap & and learn about that.