--output and %output options

[tys lefering]

Hi,
Running bison-2.4.1 from a script and using commandline options
--output=file.c and --defines=file.h to know where the output is,
it appears that if there are %output or %defines statements in
the input grammar the output is written to other files.

Would it not be better if the commandline options --output and
--defines override the settings from %output and %defines in the
grammar ?

Now have to scan the input grammar for %output and %defines to know
where the output will be witten to.

example test.y:
%output = "otherfile.c"
%defines "otherfile.h"
%%
begin:
    ;

command:
bison --output=file.c --defines=file.h test.y

and the output is in otherfile.c and otherfile.h and not in
file.c and file.h .

Also what is the official syntax for the %output statement ?
bison-2.3 wants '%output = "filename"' and bison-2.4.1
accepts '%output "filename"' or '%output = "filename"' .

thanks.