1 files changed, 4 insertions, 1 deletions

diff --git a/config.sub b/config.sub
index f2083668f95..0f5419a0836 100755
--- a/config.sub
+++ b/config.sub
@@ -106,6 +106,9 @@ case $os in
         -ptx*)
                 basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
                 ;;
+        -windowsnt*)
+                os=`echo $os | sed -e 's/windowsnt/winnt/'`
+                ;;
 esac
 
 # Decode aliases for certain CPU-COMPANY combinations.
@@ -566,7 +569,7 @@ case $os in
               | -riscos* | -linux* | -uniplus* | -iris* | -rtu* | -xenix* \
               | -hiux* | -386bsd* | -netbsd* | -freebsd* | -riscix* \
               | -lynxos* | -bosx* | -nextstep* | -cxux* | -aout* | -elf* \
-              | -ptx* | -coff*)
+              | -ptx* | -coff* | -winnt*)
                 ;;
         -sunos5*)
                 os=`echo $os | sed -e 's|sunos5|solaris2|'`