[ale] library package management on LFS with stow

[Chris Fowler]

> From: "Chris Fowler" <cfowler at outpostsentinel.com>
> To: ale at ale.org
> Sent: Wednesday, September 21, 2016 5:46:58 PM
> Subject: [ale] library package management on LFS with stow

> I've fixed, but I need to fix my wrapper. How do I go about upgrading a library?
> Should I stow (create links) for the upgrade into a temp directory, use
> LD_LIBRARY_PATH then remove old and replace with new? Maybe static awk and
> static bash? I already have a busybox static binary that I can use, but many
> configure scripts will choke on the limited options for those applets.

I think I know. My build script removes all data for the package I'm building. 

1. Rebuild the package 
2. destow the original package. This deletes links. Any binary using a library is still running with it. 
3. move the pkg directory to another name. 
4. stow new 
5. delete the old package directory. 
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