Release calc version 2.10.2t30

help/environment

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+Environment variables
+
+    CALCPATH
+
+	A :-separated list of directories used to search for
+	scripts filenames that do not begin with /, ./ or ~.
+
+	If this variable does not exist, a compiled value
+	is used.  Typically compiled in value is:
+
+		    .:./lib:~/lib:${LIBDIR}/calc
+
+	where ${LIBDIR} is usually:
+
+		    /usr/local/lib/calc
+
+	This value is used by the READ command.  It is an error
+	if no such readable file is found.
+
+	The CALCBINDINGS file searches the CALCPATH as well.
+
+
+    CALCRC
+
+	On startup (unless -h or -q was given on the command
+	line), calc searches for files along the :-separated
+	$CALCRC environment variable.
+
+	If this variable does not exist, a compiled value
+	is used.  Typically compiled in value is:
+
+		    ${LIBDIR}/startup:~/.calcrc
+
+	where ${LIBDIR} is usually:
+
+		    /usr/local/lib/calc
+
+	Missing files along the $CALCRC path are silently ignored.
+
+    CALCBINDINGS
+
+	On startup (unless -h or -q was given on the command
+	line), calc reads key bindings from the filename specified
+	in the $CALCRC environment variable.  These key bindings
+	are used for command line editing and the command history.
+
+	If this variable does not exist, a compiled value is used.
+	Typically compiled in value is:
+
+		    bindings
+	or:
+		    altbind		(bindings where ^D means exit)
+
+	The bindings file is searched along the CALCPATH.  Unlike
+	the READ command, a .cal extension is not added.
+
+	If the file could not be opened, or if standard input is not
+	a terminal, then calc will still run, but fancy command line
+	editing is disabled.
+
+    HOME
+
+	This value is taken to be the home directory of the
+	current user.  It is used when files begin with '~/'.
+
+	If this variable does not exist, the home directory password
+	entry of the current user is used.  If that information
+	is not available, '.' is used.
+
+    PAGER
+
+	When invoking help, this environment variable is used
+	to display a help file.
+
+	If this variable does not exist, a compiled value
+	is used.  Typically compiled in value is something
+	such as 'more', 'less', 'pg' or 'cat'.
+
+    SHELL
+
+	When a !-command is used, the program indicated by
+	this environment variable is used.
+
+	If this variable does not exist, a compiled value
+	is used.  Typically compiled in value is something
+	such as 'sh' is used.