[U-Boot] curious about "#ifndef CONFIG_ENV_OVERWRITE" test in lsxl.c

[Robert P. J. Day]

  was perusing the wiki page on u-boot environment variables:

http://www.denx.de/wiki/view/DULG/UBootPowerOn

and just now learned about the ability to mark environment variables
as "set once", that sort of thing, so i went looking for examples, and
noticed, in board/buffalo/lsxl/lsxl.c:

  #ifndef CONFIG_ENV_OVERWRITE
  # error "You need to set CONFIG_ENV_OVERWRITE"
  #endif

ok, but why not just add the line:

  #define CONFIG_ENV_OVERWRITE

to include/configs/lsxl.h, and get rid of that test? or is this just a
historical holdover when things were done differently?

rday

-- 

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Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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