buildworld failing in lib/libc/db/btree

[Warner Losh]

On Jul 21, 2011, at 8:03 AM, Dimitry Andric wrote:

> On 2011-07-21 15:45, Alexander Best wrote:
> ...
>>> If you are including any path, e.g. CC=/usr/bin/clang, buildworld will
>>> not work.  Remove the path and try again.
>> 
>> THANKS!
>> 
>> ...exactly that was the problem. :) after changing CC/CXX so it doesn't contain
>> a full path, buildworld succeeded!
> 
> The problem here was that buildworld builds a bootstrap compiler under
> /usr/obj, but if you specify ${CC} with an absolute path, it fails to
> use it!  (The bootstrap compiler has its search paths adjusted, so it
> only looks under /usr/obj for include files, libraries and so on.)
> 
> This is actually a problem that needs solving, but it won't happen for
> 9.0, unfortunately...

Yes.  And we can't solve it by banning all CC settings with / in them, since it is perfectly legitimate to build the whole tree with a different compiler that lives outside the tree...

Warner