Rob rjl6789

Installing the latest git/cmake versions on RHEL/Centos

This should work on other Fedora-based distributions and for other packages, but I have not done extensive testing

Introduction

Using up-to-date versions of software on RHEL is a pain. I understand the eneterprise benefits, but configuring a development environment can be confusing, with most people using a combination of symlinks, adding folders to PATH, and enabling an scl_source

While this is still generally acceptable, there exists an alternative method (sorry).

The alternatives essentially creates a symlink, but it actually is a symbolic link to the alternatives directory, which in turn is a symbolic link to the actual program.

This allows for better package management and confines all sysadmin changes to the /etc directory, all while making switching back easier. It feels to me a lot like virtualenv in python

	/*
	* $Id: $
	*
	* Module: free -- description
	* Created: 15-SEP-2008 17:56
	* Author: tmr
	*/

	#include <stdio.h>
	#include <unistd.h>

	;; * IDO/IVY completion menu
	;; This is originally from https://www.emacswiki.org/emacs/HippieExpand#toc10
	;;
	;; There are a few improvements:
	;; - It is undo friendly with the addition of save-excursion
	;; - It will use ivy for the expansion menu if ivy is available, falls back to ido
	;; - Automatically expands if there is only one possible expansion

	(defun my-hippie-expand-completions (&optional hippie-expand-function)
	"Return list of completions generated by `hippie-expand'."