原文链接 https://waruqi.github.io/2016/07/22/how-to-compile-on-cross-toolchains/
注：以下为加速网络访问所做的原文缓存，经过重新格式化，可能存在格式方面的问题，或偶有遗漏信息，请以原文为准。
xmake provides a convenient and flexible cross-compiling support, in most cases, we need not to configure complex toolchains prefix, for example: arm-linux-
As long as this toolchains meet the following directory structure:
/home/toolchains_sdkdir
- bin
- arm-linux-gcc
- arm-linux-ld
- ...
- lib
- libxxx.a
- include
- xxx.h
Then，we can only configure the sdk directory and build it.
$ xmake f -p linux --sdk=/home/toolchains_sdkdir
$ xmake
xmake will detect the prefix: arm-linux- and add the include and library search directory automatically.
-I/home/toolchains_sdkdir/include -L/home/toolchains_sdkdir/lib
However, we need set it manually if the toolchains /bin directory is in other places.
$ xmake f -p linux --sdk=/home/toolchains_sdkdir --toolchains=/usr/opt/bin
$ xmake
Or we need configure all options for compiling successfully if this toolchains has completely differen directory structure.
$ xmake f -p linux --sdk=/home/toolchains_sdkdir --toolchains=/usr/opt/bin --cxflags="-I/usr/xxx/include" --ldflags="-L/usr/zzz/lib"
$ xmake
We can also set the prefix using the argument --cross= manually.
.e.g
$ xmake f -p linux --cross=arm-linux- --sdk=/home/toolchains_sdkdir ...