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arm-sdk/doc/crosstool-ng.md

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Using crosstool-ng to make your own toolchains

If the Devuan provided toolchain does not compile the kernel for your board, you can then use crosstool-ng to help you create your own GCC toolchain. Here are the basic steps to get a working toolchain:

  • Create a new directory in $HOME called build
; cd $HOME; mkdir build; cd build
  • Clone the crosstool-ng git repository
; git clone https://github.com/crosstool-ng/crosstool-ng && cd crosstool-ng
  • Install the required dependencies for using ct-ng
; sudo apt-get install build-essential autoconf automake ncurses-dev gperf flex texinfo help2man libtool-bin bison gawk
  • Compile crosstool-ng
; ./bootstrap
; ./configure --prefix=$HOME/.local
; make
; make install

Now you have installed crosstool-ng. Now let's create an armhf toolchain! Go grab some beer and drink it until it's done compiling...

; export PATH="$HOME/.local/bin:$PATH"
; mkdir -p $HOME/tc/armv7-rpi2-linux-gnueabihf
; cd $HOME/tc/armv7-rpi2-linux-gnueabihf
; ct-ng armv7-rpi2-linux-gnueabihf
; ct-ng build

Congrats! You've built a GCC toolchain and perhaps got drunk in the meantime :)

Be sure to check out ct-ng list-samples to see what other toolchains are offered, or perhaps even configure your own with menuconfig