--- configure	2011-01-30 20:11:25.566231040 +0000
+++ configure.new	2011-01-30 20:15:14.591921152 +0000
@@ -3281,6 +3281,15 @@
   i386)
     BuildArch="i386"
     ;;
+  i486)
+    BuildArch="i486"
+    ;;
+  i586)
+    BuildArch="i586"
+    ;;
+  i686)
+    BuildArch="i686"
+    ;;
   ia64)
     BuildArch="ia64"
     ;;
@@ -3378,6 +3387,15 @@
   i386)
     HostArch="i386"
     ;;
+  i486)
+    HostArch="i486"
+    ;;
+  i586)
+    HostArch="i586"
+    ;;
+  i686)
+    HostArch="i686"
+    ;;
   ia64)
     HostArch="ia64"
     ;;
@@ -3475,6 +3493,15 @@
   i386)
     TargetArch="i386"
     ;;
+  i486)
+    TargetArch="i486"
+    ;;
+  i586)
+    TargetArch="i586"
+    ;;
+  i686)
+    TargetArch="i686"
+    ;;
   ia64)
     TargetArch="ia64"
     ;;
@@ -3565,7 +3592,7 @@
 
 checkArch() {
     case $1 in
-    alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
+    alpha|arm|hppa|hppa1_1|i386|i486|i586|i686|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
         ;;
     *)
         echo "Unknown arch $1"
@@ -3576,7 +3603,7 @@
 
 checkVendor() {
     case $1 in
-    dec|unknown|hp|apple|next|sun|sgi|ibm)
+    dec|unknown|hp|apple|next|sun|sgi|ibm|pc)
         ;;
     *)
         echo "Unknown vendor $1"