* objcopy.c (use_alt_mach_code): New variable.

(OPTION_ALT_MACH_CODE): Define.
(copy_options): Added --alt-machine-code.
(copy_main): Handle it.
(copy_object): Switch to alternate machine code if requested.
* doc/binutils.texi: Document new option.
* NEWS: Likewise.

binutils/doc/binutils.texi

@@ -954,6 +954,7 @@ objcopy [@option{-F} @var{bfdname}|@option{--target=}@var{bfdname}]
         [@option{--keep-global-symbols=}@var{filename}]
         [@option{--localize-symbols=}@var{filename}]
         [@option{--weaken-symbols=}@var{filename}]
+        [@option{--alt-machine-code=@var{index}}]
         [@option{-v}|@option{--verbose}]
         [@option{-V}|@option{--version}]  
         [@option{--help}]
@@ -1306,6 +1307,13 @@ Apply @option{--weaken-symbol} option to each symbol listed in the file
 name per line.  Line comments may be introduced by the hash character.
 This option may be given more than once.
 
+@item --alt-machine-code=@var{index}
+If the output architecture has alternate machine codes, use the
+@var{index}th code instead of the default one.  This is useful in case
+a machine is assigned an official code and the tool-chain adopts the 
+new code, but other applications still depend on the original code
+being used.
+
 @item -V
 @itemx --version
 Show the version number of @command{objcopy}.