前言：
在编译kaldi源码时，请先参照 https://www.jianshu.com/p/05e1bbe0ca3a 这篇文章在x86平台能够编译后，再进行以下操作。
Kaldi交叉编译：
1. 确保openfst已经编译完成，并且存放路径为：kaldi/tools/openfst/include/ kaldi/tools/openfst/lib/
2. 确保openBlas和Clapack编译完成,并且拷贝Clapack编译生成的lib库：libblas.a libclapack.a libf2c.a至OpenBLAS/install/lib下
3. 切换到kaldi/src目录，执行
CXX=mips-linux-gnu-g++ AR=mips-linux-gnu-ar AS=mips-linux-gnu-as RANLIB=mips-linux-gnu-ranlib ./configure --static --use-cuda=no --openblas-root=/home/xxx/OpenBLAS-master/install --clapack-root=/home/xxx/OpenBLAS-master/install
以上参数 /home/xxx/OpenBLAS-master/install 是我openBlas编译完成后存放的路径，install目录结构如下：
4. 执行完步骤3的命令后，出现如下信息：
Configuring KALDI to use CLAPACK
Configuring KALDI to use OPENBLAS
Configuring ...
Checking compiler mips-linux-gnu-g++ ...
Checking OpenFst library in /home/chenjiang/work/kaldi/tools/openfst ...
Doing OS specific configurations ...
On Linux: Checking for linear algebra header files ...
Your math library seems to be OpenBLAS from /home/chenjiang/OpenBLAS-master/install. Configuring appropriately.
Configuring static OpenBlas since --static-math=yes
Successfully configured for Linux with OpenBLAS from /home/chenjiang/OpenBLAS-master/install
Info: configuring Kaldi not to link with Speex (don't worry, it's only needed if you
intend to use 'compress-uncompress-speex', which is very unlikely)
mips-linux-gnu-g++: error: unrecognized command line option '-msse'
mips-linux-gnu-g++: error: unrecognized command line option '-msse2'
make: *** [exp-test] Error 1
./configure: 行 206: ./exp-test: 没有那个文件或目录
SUCCESS
To compile: make clean -j; make depend -j; make -j
... or e.g. -j 10, instead of -j, to use a specified number of CPUs
修改kaldi.mk文件，修正红色错误及添加libblas.a libclapack.a libf2c.a的链接库
a. 添加蓝色部分内容
OPENBLASINC = /home/xxx/OpenBLAS-master/install/include
OPENBLASLIBS = /home/xxx/OpenBLAS-master/install/lib/libopenblas.a -lgfortran
OPENBLASLIBS += /home/xxx/OpenBLAS-master/install/lib/libclapack.a
OPENBLASLIBS += /home/xxx/OpenBLAS-master/install/lib/libblas.a
OPENBLASLIBS += /home/xxx/OpenBLAS-master/install/lib/libf2c.a
b. 删除 -msse -msse2 参数
5. make depend -j4
6 make -j4
若无错误，则编译完成。
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