Error while loading shared libraries: libXmu.so.6: cannot open shared object file: No such file or directory on CentOS 6

If you using gaussview and you encountered this error on CentOS 6 or RH6, 

$ /usr/local/gaussian/gv/gview.exe: error while loading shared libraries: 
libXmu.so.6: cannot open shared object file: No such file or directory

This is due to the missing libXmu libraries and related dependencies. Just simply do a

# yum install libXmu*

or if you wish to check which repo supplies the libXmu

# yum whatprovides libXmu

libXmu-1.1.1-2.el6.i686 : X.Org X11 libXmu/libXmuu runtime libraries
Repo        : base
Matched from:

libXmu-1.1.1-2.el6.x86_64 : X.Org X11 libXmu/libXmuu runtime libraries
Repo        : base
Matched from:

libXmu-1.1.1-2.el6.i686 : X.Org X11 libXmu/libXmuu runtime libraries
Repo        : installed
Matched from:
Other       : Provides-match: libXmu