Compiling into chroot

[Alon Bar-Lev]

Hello,

I looked at recent libtool-2 versions and could still not find a solution to 
compile into chroot.

I want to create an image to embedded device using a cross compiler.

So I do:
mkdir /tmp/device-root
cd /package1
./configure --host=<> --prefix=/usr
make install DESTDIR=/tmp/device-root
cd /package2
./configure --host=<> --prefix=/usr
make install DESTDIR=/tmp/device-root

But package2 cannot find libraries as the .la files constains pathes to 
/usr/lib and not /tmp/device-root/usr/lib.

Is there any way to make libtool search the /tmp/device-root prefix, and behave 
correctly?
I am thinking like an environment variable so that packages will not be 
effected.

Thanks,
Alon Bar-Lev.