diff -up simspark-0.2.2/lib/salt/gmath.h.gcc4.7fix simspark-0.2.2/lib/salt/gmath.h
--- simspark-0.2.2/lib/salt/gmath.h.gcc4.7fix	2012-02-16 15:18:02.720627323 +0330
+++ simspark-0.2.2/lib/salt/gmath.h	2012-02-16 15:18:24.423908724 +0330
@@ -226,7 +226,7 @@ f_inline bool gIsFinite(TYPE f)
     assert(std::numeric_limits<TYPE>::has_infinity);
     return (std::numeric_limits<double>::infinity() != f);
 #else
-    return isfinite(f);
+    return std::isfinite(f);
 #endif
 }