--- source/Irrlicht/COSOperator.cpp.orig	Sun Dec 26 20:30:20 2010
+++ source/Irrlicht/COSOperator.cpp	Sun Dec 26 20:30:20 2010
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <unistd.h>
 #ifndef _IRR_SOLARIS_PLATFORM_
+#include <sys/param.h>
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif