diff --git a/configure b/configure
index a06ce333485..a1b82e929ba 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 
-# From configure.in Revision: 1.64 
+# From configure.in Revision: 1.65 
 
 # Guess values for system-dependent variables and create Makefiles.
 # Generated automatically using autoconf version 2.12 
@@ -577,7 +577,7 @@ fi
  			sed -e 's/://' -e 's/\./_/'` && \
 			ac_sys_system=next && ac_sys_release=$4
 
-		MACHDEP="$ac_sys_system$ac_sys_release"
+		MACHDEP="plat-$ac_sys_system$ac_sys_release"
 	fi
 fi
 
@@ -597,10 +597,10 @@ then
 			   tr -d '/ ' | tr '[A-Z]' '[a-z]'`
 	ac_md_release=`echo $ac_sys_release |
 			   tr -d '/ ' | sed 's/\..*//'`
-	MACHDEP="$ac_md_system$ac_md_release"
+	MACHDEP="plat-$ac_md_system$ac_md_release"
 
 	case $MACHDEP in
-	'')	MACHDEP=unknown;;
+	'')	MACHDEP="plat-unknown";;
 	esac
 fi
 echo "$ac_t""$MACHDEP" 1>&6
diff --git a/configure.in b/configure.in
index efcb8b8f151..38ae566c6b9 100644
--- a/configure.in
+++ b/configure.in
@@ -28,7 +28,7 @@ if test -f /usr/lib/NextStep/software_version; then
  			sed -e 's/://' -e 's/\./_/'` && \
 			ac_sys_system=next && ac_sys_release=$4
 
-		MACHDEP="$ac_sys_system$ac_sys_release"
+		MACHDEP="plat-$ac_sys_system$ac_sys_release"
 	fi
 fi
 
@@ -47,10 +47,10 @@ then
 			   tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'`
 	ac_md_release=`echo $ac_sys_release |
 			   tr -d '[/ ]' | sed 's/\..*//'`
-	MACHDEP="$ac_md_system$ac_md_release"
+	MACHDEP="plat-$ac_md_system$ac_md_release"
 
 	case $MACHDEP in
-	'')	MACHDEP=unknown;;
+	'')	MACHDEP="plat-unknown";;
 	esac
 fi
 AC_MSG_RESULT($MACHDEP)