1 files changed, 14 insertions, 0 deletions
diff --git a/setuptools/command/egg_info.py b/setuptools/command/egg_info.py
index 46cdf4e0..e932d46a 100755
--- a/setuptools/command/egg_info.py
+++ b/setuptools/command/egg_info.py
@@ -287,6 +287,19 @@ class FileList(FileList):
 
 
 
+def compose(path):
+    # Apple's HFS Plus returns decomposed UTF-8. Since just about
+    # everyone else chokes on it, we must make sure to return fully
+    # composed UTF-8 only.
+    if sys.getfilesystemencoding().lower() == 'utf-8':
+        from unicodedata import normalize
+        if sys.version_info >= (3,):
+            path = normalize('NFC', path)
+        else:
+            path = normalize('NFC', path.decode('utf-8')).encode('utf-8')
+    return path
+
+
 class manifest_maker(sdist):
 
     template = "MANIFEST.in"
@@ -311,6 +324,7 @@ class manifest_maker(sdist):
         self.prune_file_list()
         self.filelist.sort()
         self.filelist.remove_duplicates()
+        self.filelist.files = [compose(path) for path in self.filelist.files]
         self.write_manifest()
 
     def write_manifest (self):