Silly branch compile failure, stage 1

[Neil Booth]

Kaveh R. Ghazi wrote:-

> This is the crucial bit, the tests are spuriously failing because they
> can't find these include files.  The -I flags passed in look strange.
> 
> I think you need to look at why these don't match up.  Are you by
> chance building in a subdirectory of the srcdir?  (I don't think that
> is supported.)

I build with my directory hierarchy as follows (and always have done):-

gcc -- gcc -- cp
	   -- f
           -- objc
	   -- (etc)
    -- build
    -- fastjar
    -- boehm-gc
    -- (etc)

and build from the "build" directory.  Thus, my configure command starts
with

../configure --options

This has worked for over a year, until just now, so I hope it hasn't
become unsupported.  Besides, it's working on mainline still.  Does this
count as building in a subdirectory of the srcdir?  It's a subdirectory
of the toplevel "gcc", along with boehm-gc and stuff.

I'd love to help find this, but I really don't understand the configury
stuff at all.

Neil.