diff -r -u parrot-orig/src/platform/generic/sysmem.c parrot/src/platform/generic/sysmem.c
--- parrot-orig/src/platform/generic/sysmem.c	Sun Feb 13 17:15:55 2011
+++ parrot/src/platform/generic/sysmem.c	Mon Feb 14 09:31:01 2011
@@ -25,6 +25,9 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#if defined(PARROT_HAS_HEADER_SYSPARAM)
+#  include <sys/param.h>
+#endif
 #if defined(PARROT_HAS_HEADER_SYSSYSCTL)
 #  include <sys/sysctl.h>
 #endif