## Function: COMMON-LISP:MERGE-PATHNAMES
[![package](https://img.shields.io/badge/Package-COMMON--LISP-5f9ea0.svg?style=social&colorA=999999)](../) [![type](https://img.shields.io/badge/Type-Function-5f9ea0.svg?style=social&colorA=999999)](../#function) [![clhs](https://img.shields.io/badge/CLHS-MERGE--PATHNAMES-5f9ea0.svg?style=social&colorA=999999)](http://www.lispworks.com/documentation/HyperSpec/Body/f_merge_.htm) [![github](https://img.shields.io/badge/GitHub-View_the_source-5f9ea0.svg?style=social&colorA=999999&logo=github)](https://github.com/sbcl/sbcl/blob/master/src/code/target-pathname.lisp/) 

> Construct a filled in pathname by completing the unspecified components
> from the defaults.

### Lambda list
```cl
(pathname &optional sb-impl::defaults sb-impl::default-version)
```