--- a/make/common/shared/Platform.gmk	Fri Jun 19 18:03:27 2009 +0800
+++ b/make/common/shared/Platform.gmk	Wed Jan 04 11:22:55 2012 -0800
@@ -171,7 +171,7 @@ ifeq ($(SYSTEM_UNAME), SunOS)
     REQUIRED_OS_VERSION = 5.8
   endif
   # How much RAM does this machine have:
-  MB_OF_MEMORY=$(shell /etc/prtconf | fgrep 'Memory size:' | expand | cut -d' ' -f3)
+  MB_OF_MEMORY=$(shell /usr/sbin/prtconf | fgrep 'Memory size:' | expand | cut -d' ' -f3)
 endif
 
 # Platform settings specific to Linux