--- lib/JAMA/tnt_math_utils.h~	2010-01-05 20:41:48.000000000 -0800
+++ lib/JAMA/tnt_math_utils.h	2010-01-05 19:47:22.000000000 -0800
@@ -30,7 +30,10 @@
 {
 	
 	if (a== 0)
+	{
+		using __gnu_cxx::abs;
 		return abs(b);
+	}
 	else
 	{
 		Real c = b/a;
