Properly detect OS_ARCH when building on Win32 ME.

Bug #180822 r=dmose,wtc

configure.in

@@ -550,10 +550,7 @@ elif test "$OS_ARCH" = 'Windows_95'; then
 elif test "$OS_ARCH" = 'Windows_98'; then
     OS_ARCH=Windows_NT
     OS_TARGET=WIN95
-elif test "$OS_ARCH" = "CYGWIN_95-4.0"; then
-    OS_ARCH='CYGWIN_NT-4.0'
-    OS_TARGET=WIN95
-elif test "$OS_ARCH" = "CYGWIN_98-4.10"; then
+elif test "`echo $OS_ARCH | egrep -c ^'(CYGWIN_9|CYGWIN_ME)' 2>/dev/null`" != 0; then
     OS_ARCH='CYGWIN_NT-4.0'
     OS_TARGET=WIN95
 elif test "$OS_ARCH" = "OS_2"; then