#! /bin/sh
#
# $TOOLS/lib
#
# Defines environment variable containing the directory whose RCS library will
# be accessed, and the corresponding production directory.
#
# $L = Directory specification whose RCS library will be accessed.
#
# Creates RCSLIBR environment variable containing the directory specification
# for a given program whose RCS library will be accessed.
#
# (The calling script must execute this in the context of the parent's shell,
#  so the environment variable that is defined is accessible by the parent)
#
# Restrictions:
#
#	1) To create or access an RCS library, the user must be in the rcssys
#	   group, and the library's parent directory must have R/W access for
#	   the rcssys group.
#
#   Date   Programmer		Description
# 01/25/96 Brian Lomasky	Original
#
RCSLIBR=""
if [ $# -eq 0 ]; then
	echo "lib:  Error - No parameter specified"
	echo ""
	echo "Use lib to set the directory whose RCS library will be accessed."
	echo ""
	echo "Usage:     L=<directory-whose-rcs-library-is-to-be-accessed>"
	echo "           . lib"
	echo ""
	echo "Example:   L=SOURCE"
	echo "           . lib"
	echo ""
else
	if [ "$L" = "" ]
	then
		echo "Error - Invalid RCS library directory specified\007"
	else
		# Define directory which contains the RCS library being accessed
		RCSLIBR=`eval echo \\$$L`
		export RCSLIBR
	fi
fi