fix build on OS X

Linking fails without ARCHFLAGS because setup.py tries to build i386
libraries.

Turns out OS X Python uses .so suffix, so we don't need to check for .dylib
files for make clean.

Author: blootsvoets

Makefile

@@ -13,7 +13,7 @@ test: pcl/_pcl.so tests/test.py
 
 clean:
 	rm -rf build
-	rm -f pcl/_pcl.cpp pcl/_pcl.so
+	rm -f pcl/_pcl.cpp pcl/_pcl.so pcl/registration.so
 
 doc: pcl.so conf.py readme.rst
 	sphinx-build -b singlehtml -d build/doctrees . build/html

setup.py

@@ -6,6 +6,11 @@
 import subprocess
 import numpy
 import sys
+import platform
+import os
+
+if platform.system() == "Darwin":
+	os.environ['ARCHFLAGS'] = ''
 
 # Try to find PCL. XXX we should only do this when trying to build or install.
 PCL_SUPPORTED = ["-1.7", "-1.6", ""]    # in order of preference