Disabled -fPIC under Windows to get rid of compiler warning

theano/gof/cmodule.py

@@ -577,13 +577,16 @@ def gcc_module_compile_str(module_name, src_code, location=None, include_dirs=[]
 
     :returns: dynamically-imported python module of the compiled code.
     """
-    #TODO: don't to the dlimport in this function
+    #TODO: Do not do the dlimport in this function
 
     if preargs is None:
       preargs = []
     else:
       preargs = list(preargs)
 
+    if sys.platform != 'win32':
+        # Under Windows it looks like fPIC is useless. Compiler warning:
+        # '-fPIC ignored for target (all code is position independent)'
         preargs.append('-fPIC')
     no_opt = False