交叉编译Ruby for ARM

下载ruby源码包：

export CC=/usr/bin/arm-linux-gnueabihf-gcc
export LD=/usr/bin/arm-linux-gnueabihf-ld
export AR=/usr/bin/arm-linux-gnueabihf-ar
export RANLIB=/usr/bin/arm-linux-gnueabihf-ranlib

export ac_cv_func_getpgrp_void=yes
export ac_cv_func_setpgrp_void=yes

./configure --target=arm-linux --host=arm-linux --prefix=/home/i5/orocos/install/ruby --with-static-linked-ext --disable-shared --disable-install-doc

然后再：

make && make install

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关于如何使用cmake搭建交叉编译环境，see link