Allow --all flag to be passed to setup.py clean [ci skip]

1 files changed, 4 insertions, 2 deletions

diff --git a/setup.py b/setup.py
index 3cff195..d8825d8 100644
--- a/setup.py
+++ b/setup.py
@@ -7,10 +7,12 @@ import asn1crypto
 
 
 class CleanCommand(Command):
-    user_options = []
+    user_options = [
+        ('all', None, '(Compatibility with original clean command)')
+    ]
 
     def initialize_options(self):
-        pass
+        self.all = False
 
     def finalize_options(self):
         pass