niflib/pywrap

* fixed relative paths
* added tests for static cast and dynamic cast (dynamic casting fails)
* using BUILD_NIFLIB_DLL and USE_NIFLIB_DLL defines

* directory can be used as python library ("import docsys")
* extended search path of xml files, to cope with the above case

Author: amorilia

__init__.py

@@ -0,0 +1 @@
+__all__ = ["nifxml"]

nifxml.py

@@ -1369,7 +1369,14 @@ def find_first_ref(self, name):
 # import elements into our code generating classes
 #
 
-doc = parse("nif.xml")
+# import via "import nifxml" from .
+if os.path.exists("nif.xml"):
+    doc = parse("nif.xml")
+# import via "import docsys" from ..
+elif os.path.exists("docsys/nif.xml"):
+    doc = parse("docsys/nif.xml")
+else:
+    raise ImportError("nif.xml not found")
 
 for element in doc.getElementsByTagName('version'):
     x = Version(element)