sysroot and lib-path

[Christer Solskogen]

On 09.11.2018 14:10, Alan Modra wrote:
> On Fri, Nov 09, 2018 at 09:55:28AM +0100, Christer Solskogen wrote:
>> Okay, but why does it also have
>> SEARCH_DIR("=/opt/cross/arm-linux-gnueabihf/lib") then? That doesn't make
>> sense, does it?
> 
> That's $prefix/$target/lib.  Note that it's inside the sysroot too.
> So in your case the host directory searched would be
> /opt/cross/sysroot.arm-linux-gnueabihf/opt/cross/arm-linux-gnueabihf/lib
> 

Which is why I said that I don't think that makes sense :-) I would 
understand it if no sysroot was set.

> $prefix/$target was an idea that predated sysroot for a place to put
> target and tool specific info.  You might see that directory
> referred to as tooldir.
> 

Yeah, I see that binutils places hardlinks in bin and ldscripts in the 
lib directory. IMHO I think $prefix/$target should be what the sysroot 
would or could be set at, but if I do that now host and target stuff 
would be mixed. Which, right now, makes (only?) sense with a target that 
newlib supports.

But ok, for now on tooldir and sysroot needs to be two different 
directories if you want to use sysroot.