How to cross-compile for RasPi3

Question

I am currently trying to cross-compile Qt 5.7 for my Raspberry Pi 3. This is my first cross-compiling atempt, so please be kind. :)

On the Qt Wiki I found instructions f

Answer 1

The arm-bcm2708/ folder is just a name. It contains several build tool chains. It's perfectly fine to use system-installed tool chains as well. So I installed the package g++-arm-linux-gnueabihf on my build machine (Debian GNU/Linux) and used this configure call:

./configure -release -opengl es2 -device linux-rpi3-g++ \
  -device-option CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- \
  -sysroot /home/fs/raspi/sysroot -opensource -confirm-license \
  -make libs -prefix /usr/local/qt5pi -extprefix /home/fs/raspi/qt5pi \
  -hostprefix /home/fs/raspi/qt5 -v

Answer 2

After much struggle (the accepted solution does not work for me), I finally got to cross compile qt 5.6 for raspberry pi 3 on ubuntu. You basically need to follow this well known how to. Just be sure to use the following configure:

./configure -release -opengl es2 -device linux-rpi3-g++
-device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v -nomake examples -nomake tests -no-use-gold-linker