installation - 什么是 PREFIX IN make PREFIX=$HOME/usr/local/OpenBLAS？

Question

我正在尝试安装 OpenBLAS。我已经创建了目录

 mkdir -p /usr/local/OpenBLAS

然后我按照教程说明进行操作：

make PREFIX=$HOME/usr/local/OpenBLAS install
make -j 2 -f Makefile.install install
make[1]: Entering directory `/home/milenko/OpenBLAS'
Generating openblas_config.h in /root/usr/local/OpenBLAS/include
Generating f77blas.h in /root/usr/local/OpenBLAS/include
Generating cblas.h in /root/usr/local/OpenBLAS/include
Copying LAPACKE header files to /root/usr/local/OpenBLAS/include
Copying the static library to /root/usr/local/OpenBLAS/lib
Copying the shared library to /root/usr/local/OpenBLAS/lib
Generating OpenBLASConfig.cmake in /root/usr/local/OpenBLAS/lib/cmake/openblas
Install OK!
make[1]: Leaving directory `/home/milenko/OpenBLAS'

但是 usr/local/openBLAS 是空的！新目录在 /home/m/OpenBLAS/usr/local/ 中创建。我应该只导出到 bashrc 的路径吗？其他程序将来会调用 OpenBLAS，这会不会造成麻烦？