       if file.error
         logger.error formatError file
       if file.data and file.compilationTime >= startTime
-        logger.warn "'#{file.path}' compiled, but not written. Check your #{file.type}.joinTo config."
+        unless checkAnyJoinTo file
+          logger.warn "'#{file.path}' compiled, but not written. Check your #{file.type}s.joinTo config."
 
   Object.keys(map).map (generatedFilePath) ->
     sourceFiles = map[generatedFilePath]

generate = require './generate'
helpers = require '../helpers'
logger = require 'loggy'

getPaths = (sourceFile, joinConfig) ->
  sourceFileJoinConfig = joinConfig[sourceFile.type + 's'] or {}

getFiles = (fileList, config, joinConfig, startTime) ->
  map = {}

  anyJoinTo = {}
  checkAnyJoinTo = (file) ->
    joinSpecs = anyJoinTo[file.type] ?=
      Object.keys(config.overrides).map (_) ->
        config.overrides[_].files
      .concat [config.files]
      .map (_) -> _?["#{file.type}s"]?.joinTo
      .filter (_) -> _

    if typeof joinSpecs is 'function'
      joinSpecs file.path
    else if joinSpecs.some((_) -> typeof _ is 'string')
      anyJoinTo[file.type] = -> true
    else if not joinSpecs.length
      anyJoinTo[file.type] = -> false
      false
    else
      anyJoinTo[file.type] = matcher joinSpecs.reduce (flat, aJoinTo) ->
        flat.concat Object.keys(aJoinTo).map (_) -> aJoinTo[_]
      , []
      anyJoinTo[file.type] file.path

  fileList.files.forEach (file) ->
    return if not file.error? and not file.data?
    paths = getPaths file, joinConfig
