Using a custom toolchain for cross compilation

Hi. I'm preparing rust for cross compilation

./configure --target=arm-unknown-linux-gnueabihf

But my toolchain is with following name

arm-angstrom-linux-gnueabi-*

How do I make sure that this toolchain is used instead of arm-linux-gnueabihf which is available in $PATH

Related: [Solved] Cross Compile against a sysroot / SDK (like Raspberry Pi)