3 files changed, 20 insertions, 3 deletions
diff --git a/tools/grit/grit/format/data_pack.py b/tools/grit/grit/format/data_pack.py
index 1f11a9b..797c23e 100644..100755
--- a/tools/grit/grit/format/data_pack.py
+++ b/tools/grit/grit/format/data_pack.py
@@ -22,12 +22,13 @@ class DataPack(interface.ItemFormatter):
   def Format(self, item, lang='en', begin_item=True, output_dir='.'):
     if not begin_item:
       return ''
+
     assert isinstance(item, misc.ReleaseNode)
 
     nodes = DataPack.GetDataNodes(item)
     data = {}
     for node in nodes:
-      id, value = node.GetDataPackPair()
+      id, value = node.GetDataPackPair(output_dir)
       data[id] = value
     return DataPack.WriteDataPack(data)
 
diff --git a/tools/grit/grit/node/include.py b/tools/grit/grit/node/include.py
index d50e7a6..6ff560a 100644
--- a/tools/grit/grit/node/include.py
+++ b/tools/grit/grit/node/include.py
@@ -6,6 +6,7 @@
 '''Handling of the <include> element.
 '''
 
+import os
 
 import grit.format.rc_header
 import grit.format.rc
@@ -46,16 +47,23 @@ class IncludeNode(base.Node):
     '''
     return self.FilenameToOpen()
 
-  def GetDataPackPair(self):
+  def GetDataPackPair(self, output_dir):
     '''Returns a (id, string) pair that represents the resource id and raw
     bytes of the data.  This is used to generate the data pack data file.
     '''
     from grit.format import rc_header
     id_map = rc_header.Item.tids_
     id = id_map[self.GetTextualIds()[0]]
-    file = open(self.FilenameToOpen(), 'rb')
+    filename = self.FilenameToOpen()
+    if not os.path.exists(filename):
+      # Try to open the file relative to the output dir if it's not relative to
+      # the grd file.
+      filename = os.path.join(output_dir, self.attrs['file'])
+
+    file = open(filename, 'rb')
     data = file.read()
     file.close()
+
     return id, data
 
   # static method
diff --git a/tools/grit/grit/tool/build.py b/tools/grit/grit/tool/build.py
index 30d2fb3..e2115ee 100644
--- a/tools/grit/grit/tool/build.py
+++ b/tools/grit/grit/tool/build.py
@@ -156,6 +156,14 @@ are exported to translation interchange files (e.g. XMB files), etc.
     
     for output in self.res.GetOutputFiles():
       self.VerboseOut('Creating %s...' % output.GetFilename())
+
+      # Don't build data package files on mac/windows because it's not used and
+      # there are project dependency issues.  We still need to create the file
+      # to satisfy build dependencies.
+      if output.GetType() == 'data_package' and sys.platform != 'linux2':
+        f = open(output.GetOutputFilename(), 'wb')
+        f.close()
+
       # Microsoft's RC compiler can only deal with single-byte or double-byte
       # files (no UTF-8), so we make all RC files UTF-16 to support all
       # character sets.