Cross compiling with autoconf

This post is just a simple self reminder how to cross compile programs which are configurable with GNU autoconf.

$ # I use the Linaro cross compilation suite here
$ # Target: An ARMv7 based board
$ # HOST: My x86 64bit machine running VirtualBox
$ LINARO_BIN_FOLDER=/home/username/Linaro/gcc-linaro-7.2.1-2017.11-x86_64_arm-linux-gnueabihf/bin
$ export CC=arm-linux-gnueabihf-gcc
$ export CXXC=arm-linux-gnueabihf-g++
$ $CC --version # just a quick sanity check
$ ./configure --host=arm-linux-gnueabihf --build=x86_64-linux-gnu
$ make