unused_prefix_warning - bogus?

[Andreas Schwab]

DJ Delorie <dj@redhat.com> writes:

|> $ gcc -E -B/foobar/ -B/blah/ -B/garbage/ foo.c > /dev/null
|> gcc: file path prefix `/garbage/' never used
|> 
|> What about the other two?

AFAIK `-B' does not accumulate.  So there is only one.

Andreas.

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