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rust_for_rpi.md

Howto build a rust compiler for the Raspberry Pi on Debian 7.1 (wheezy)

# additional information: http://stackoverflow.com/questions/19162072/installing-raspberry-pi-cross-compiler/19269715#19269715
sudo apt-get install -y file curl wget git build-essential python-dev
test `uname -m` = x86_64 && sudo apt-get install -y ia32-libs
git clone https://github.com/raspberrypi/tools.git
export PATH=$PWD/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin:$PATH
git clone http://github.com/mozilla/rust.git
cd rust
./configure --target=arm-unknown-linux-gnueabihf
make
sudo make install
# if compiling without '-Z lto' then running on Raspberry Pi gives error: Illegal instruction
rustc --target arm-unknown-linux-gnueabihf -C linker=arm-linux-gnueabihf-g++ -Z lto <source files>
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