diff --git a/distutils.ext/obidistutils/command/build_ext.py b/distutils.ext/obidistutils/command/build_ext.py
index 5bf7665..1bc7f7e 100644
--- a/distutils.ext/obidistutils/command/build_ext.py
+++ b/distutils.ext/obidistutils/command/build_ext.py
@@ -13,7 +13,7 @@ from distutils.errors import DistutilsSetupError
 
 class build_ext(ori_build_ext):
     def modifyDocScripts(self):
-        build_dir_file=open("doc/sphinx/build_dir.txt","w")
+        build_dir_file=open("doc/build_dir.txt","w")
         print(self.build_lib,file=build_dir_file)
         build_dir_file.close()
         
diff --git a/distutils.ext/obidistutils/core.py b/distutils.ext/obidistutils/core.py
index 8235b4c..97f891c 100644
--- a/distutils.ext/obidistutils/core.py
+++ b/distutils.ext/obidistutils/core.py
@@ -62,7 +62,7 @@ def findCython(root,base=None,pyrexs=None):
                 cfiles = [x for x in cfiles if x[-2:]==".c"]                
                 pyrexs[-1].sources.extend(cfiles)
                 pyrexs[-1].include_dirs.extend(incdir)
-                pyrexs[-1].extra_compile_args.extend(['-msse2'])
+                pyrexs[-1].extra_compile_args.extend(['-msse2','-Wno-unused-function'])
                 
             except IOError:
                 pass
@@ -80,7 +80,7 @@ def prepare_commands():
     from obidistutils.command.littlebigman import littlebigman
     from obidistutils.command.build_cexe import build_cexe
     from obidistutils.command.build_sphinx import build_sphinx
-    from obidistutils.command import build_ext
+    from obidistutils.command.build_ext import build_ext
     from obidistutils.command.build_ctools import build_ctools
     from obidistutils.command.build_files import build_files
     from obidistutils.command.build_scripts import build_scripts