diff -ur dangerdeep-0.2.0-orig/src/bspline.h dangerdeep-0.2.0/src/bspline.h
--- dangerdeep-0.2.0-orig/src/bspline.h	2006-10-13 01:16:09.000000000 +0700
+++ dangerdeep-0.2.0/src/bspline.h	2007-04-23 13:21:30.211061642 +0700
@@ -36,8 +36,14 @@
 #define isfinite(x) _finite(x)
 #endif
 #else
+#if defined(sun)
+#ifndef isfinite
+#define isfinite(val) (val <= std::numeric_limits<double>::max())
+#endif
+#else
 using std::isfinite;
 #endif
+#endif
 
 
 ///\brief Represents a non-uniform-B-spline interpolation object
diff -ur dangerdeep-0.2.0-orig/src/make_mesh.cpp dangerdeep-0.2.0/src/make_mesh.cpp
--- dangerdeep-0.2.0-orig/src/make_mesh.cpp	2006-10-13 01:16:12.000000000 +0700
+++ dangerdeep-0.2.0/src/make_mesh.cpp	2007-04-23 13:21:52.691812043 +0700
@@ -33,8 +33,14 @@
 #define isfinite(x) _finite(x)
 #endif
 #else
+#if defined(sun)
+#ifndef isfinite
+#define isfinite(val) (val <= std::numeric_limits<double>::max())
+#endif
+#else
 using std::isfinite;
 #endif
+#endif
 
 using namespace std;
 
diff -ur dangerdeep-0.2.0-orig/src/model.cpp dangerdeep-0.2.0/src/model.cpp
--- dangerdeep-0.2.0-orig/src/model.cpp	2006-10-13 01:16:12.000000000 +0700
+++ dangerdeep-0.2.0/src/model.cpp	2007-04-23 13:21:16.355461518 +0700
@@ -38,8 +38,14 @@
 #define isfinite(x) _finite(x)
 #endif
 #else
+#if defined(sun)
+#ifndef isfinite
+#define isfinite(val) (val <= std::numeric_limits<double>::max())
+#endif
+#else
 using std::isfinite;
 #endif
+#endif
 
 #include "system.h"
 #include "datadirs.h"