Andrew Hutchinson wrote:
> I used "v" and progressed a little
> 
> The problem seems to be that linker is called with -fwhopr or -flto as
> command line option.
> 
> ld -fwhopr .....
> 
> Linker find  '-f' and complains.
> 
> I assume this is not a valid option for ld?  Or is my linker wrong
> version or something?


  It's not a valid option for ld.  It *is* a valid option for the collect2
driver/wrapper executable that gcc uses to invoke ld, which suggests to me
that the AVR port must be configured not to build collect2, but that it is
going to need to do so if it wants to use LTO/WHOPR.  See use_collect2 in
gcc/config.gcc

    cheers,
      DaveK

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