# HG changeset patch
# User Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
# Date 1407848874 -7200
# Node ID f3778145d7e78f23b99341fe69337a0d738ea74e
# Parent  e4c9eafab6d0c38ec44c0546d3ace0b0de9a2e96
Allow setup.py to be called without arguments.

diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -29,7 +29,7 @@ nthreads = 4  # How many processes to us
 
 
 # Hack to prevent `setup.py clean` from compiling Cython files.
-if sys.argv[1] == 'clean':
+if len(sys.argv) > 1 and sys.argv[1] == 'clean':
     import shutil
     shutil.rmtree('build', ignore_errors=True)
     for directory, _, files in os.walk('pytouhou'):