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diff --git a/pkg/xtools/clgcurfit.x b/pkg/xtools/clgcurfit.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<math/curfit.h>
+
+# CLGCURFIT -- Get the curve type and order for the curfit package.
+#
+# Prompt1 is issued for the curve type.  The curve type is entered
+# as a minimum abbreviation string with clgwrd.  The allowed strings
+# are legendre, chebyshev, and spline3.  Prompt2 is issued to get
+# the order.
+
+procedure clgcurfit (prompt1, prompt2, curve_type, order)
+
+char	prompt1[ARB], prompt2[ARB]
+int	curve_type
+int	order
+
+char	str[SZ_LINE]
+int	i, curtypes[3], clgwrd(), clgeti()
+errchk	clgwrd
+
+data	curtypes/LEGENDRE, CHEBYSHEV, SPLINE3/
+
+begin
+
+	i = clgwrd (prompt1, str, SZ_LINE, ",legendre,chebyshev,spline3,")
+	curve_type = curtypes[i]
+	order = clgeti (prompt2)
+end