--- cloudfield.cxx	2006-10-19 12:17:35.789150800 +0100
+++ ../cloudfield.cxx	2006-08-11 10:46:38.875000000 +0100
@@ -54,6 +54,8 @@
 #  endif
 #endif
 
+#include <ieeefp.h>
+
 extern SGSky *thesky;
 
 static list_of_culledCloud inViewClouds;