adding rest of files from last push

rex.project/x86_64/environments/dependencies.env.bash

@@ -0,0 +1,47 @@
+#!/bin/bash
+source ./project_config.sh
+
+TERM=xterm-256color
+COLORTERM=truecolor
+LC_ALL=C
+
+function echofail() {
+	echo
+	echo "FAILED: $1"
+	echo
+	exit 1
+}
+
+ver_check()
+{
+	if ! type -p $1 &>/dev/null; then 
+		echo "ERROR: Cannot find $1"; return 1; 
+	fi
+		v=$($1 --version 2>&1 | grep -E -o '[0-9]+\.[0-9\.]+[a-z]*' | head -n1 )
+	if printf '%s\n' $2 $v | sort --version-sort --check &>/dev/null; then 
+		printf "OK:    %-9s %-6s >= $2\n" "$1" "$v"; return 0;
+	else 
+		printf "ERROR: %-9s is TOO OLD ($2 or later required)\n" "$1"; 
+	return 1; 
+	fi
+}
+
+ver_kernel()
+{
+	kver=$(uname -r | grep -E -o '^[0-9\.]+')
+	if printf '%s\n' $1 $kver | sort --version-sort --check &>/dev/null; then
+		printf "OK:    Linux Kernel $kver >= $1\n"; 
+		return 0;
+	else
+		printf "ERROR: Linux Kernel ($kver) is TOO OLD ($1 or later required)\n" "$kver";
+		return 1;
+	fi
+}
+
+alias_check() {
+	if $1 --version 2>&1 | grep -qi $2; then
+		printf "OK:    %-4s is $2\n" "$1";
+	else
+		printf "ERROR: %-4s is NOT $2\n" "$1"; 
+	fi
+}