Sorted:

C++ Compiling with Python.h Undefined Symbols-Collection of common programming errors

Is it possible to LD_PRELOAD a function with different parameters?-Collection of common programming errors

Rails 3, only rendering partial if a user is logged in-Collection of common programming errors

What is 0 times undefined?-Collection of common programming errors

undefined method `simple_nested_form_for'-Collection of common programming errors

Devise: Unknown action, Could not find devise mapping for path “/accounts/sign_out”-Collection of common programming errors

undefined method `error_messages_for' for #<#<Class:0x3981390>:0x-Collection of common programming errors

Undefined method failure_app for nil:NilClass-Collection of common programming errors

Can a Yahoo mail address be used with the Incredimail program?-Collection of common programming errors

How to call set or get a Controller's config property from a view?-Collection of common programming errors