[Users] Is "sudo ln -sf libmpichcxx.so libmpicxx.so" safe?

[赵志超]

Dear all,

I am using Scientific Linux 7, and I get an error when I try to building
the toolkit:

"
/usr/bin/ld: cannot find -lmpicxx
/usr/bin/ld: cannot find -lmpi
"

It seems that the library libmpi is missed, but I have installed mpich and
mpich-devel and mpich-autoload. And there exist "libmpichcxx.so" and
"libmpich.so".

So I try to run this command "sudo ln -sf libmpichcxx.so libmpicxx.so" and
"sudo ln -sf libmpich.so libmpi.so" and the build has done.

I want to know if this operation safe? Will it have some harmful effect on
the result of EinsteinToolkit?
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