$NetBSD$

--- gnuCurveFit.h.orig	1998-05-17 20:08:30.000000000 -0600
+++ gnuCurveFit.h
@@ -22,6 +22,7 @@
    ------------------------------------------------------------------------*/
 
 #include <string>
+using namespace std;
 
 #ifndef gnuCurveFit_included
 #define gnuCurveFit_included
