diff --git a/src/Makefile b/src/Makefile
new file mode 100644
index 0000000..8fb2226
--- /dev/null
+++ b/src/Makefile
@@ -0,0 +1,5 @@
+default: $(wildcard %.py)
+	./cython_setup.py build_ext --inplace
+
+clean:
+	rm *.c *.so *.pyc 2>/dev/null
diff --git a/src/cython_setup.py b/src/cython_setup.py
new file mode 100755
index 0000000..4925a95
--- /dev/null
+++ b/src/cython_setup.py
@@ -0,0 +1,26 @@
+#!/usr/bin/python
+from distutils.core import setup
+from distutils.extension import Extension
+from Cython.Distutils import build_ext
+import os
+
+to_remove = """cython_setup.py command_line.py irpf90.py""".split()
+ext_modules = []
+
+files = os.listdir('.')
+for file in to_remove:
+  files.remove(file)
+
+for file in files:
+  if file.endswith(".py"):
+   module = file.split('.')[0]
+   ext_modules += [ Extension(module,[file]) ]
+
+
+setup(
+  name = 'IRPF90 extensions',
+  cmdclass = {'build_ext': build_ext},
+  ext_modules = ext_modules
+)
+
+
diff --git a/src/parsed_text.py b/src/parsed_text.py
index 95e0ab1..1f88624 100644
--- a/src/parsed_text.py
+++ b/src/parsed_text.py
@@ -303,8 +303,7 @@ def build_sub_needs():
       if sub is not None:
         if type(line) == Declaration:
           sub._to_provide += vars
-        else:
-          sub._needs += vars
+        sub._needs += vars
 
 build_sub_needs()
 
@@ -534,9 +533,10 @@ parsed_text = perform_loop_substitutions()
 ######################################################################
 if __name__ == '__main__':
  for i in range(len(parsed_text)):
-  if parsed_text[i][0] == 'ao_oneD.irp.f':
+  if parsed_text[i][0] == sys.argv[1]:
    print '!-------- %s -----------'%(parsed_text[i][0])
    for line in parsed_text[i][1]:
      print line[1]
      print line[0], line[1].filename
-
+ for i in subroutines:
+   print i, subroutines[i].needs, subroutines[i].to_provide
diff --git a/src/version.py b/src/version.py
index 9aaf21b..e69e13e 100644
--- a/src/version.py
+++ b/src/version.py
@@ -1 +1 @@
-version = "1.2.7"
+version = "1.2.8"