--- configure.org	Thu Aug 16 18:36:16 2001
+++ configure	Thu Aug 16 18:38:59 2001
@@ -4,6 +4,7 @@
 use_plot=0
 use_pari=0
 use_interval=0
+use_lapack=0
 use_fep=0
 oxhome=/usr/local
 
@@ -22,6 +23,8 @@
 		use_pari=1 ;;
 	-interval)
 		use_interval=1 ;;
+	-lapack)
+		use_lapack=1 ;;
 	-fep)
 		use_fep=1 ;;
 	esac
@@ -48,8 +51,12 @@
 fi
 
 if [ $use_interval != 0 ]; then
-libname=$libname"_itv"
 echo "#define USE_INTERVAL" >> include/config.h
+fi
+
+if [ $use_lapack != 0 ]; then
+libname=$libname"_itv"
+echo "#define USE_LAPACK" >> include/config.h
 fi
 
 if [ $use_fep != 0 ]; then
