Linux install with WOK

Hello,

I am new to Linux,and I tried to install OpenCACSADE4.0 in Redhat7.2 Linux laptop with the option 8( with WOK), they ask the directory where Tcl/Tk was installed, when I prescribed /usr, where Tcl8.3 was installed with Redhat7.2 in /usr/lib, I was told that LibTclx.so was not found in /usr/lib (LibTcl.so is here).

So I reinstalled ActiveTcl8.4, this time I was told that LibTcl.so was not found in the directory, I found both LibTcl8.4.so and LibTclx8.3 in my /usr/local/ActiveTcl/lib,

Could anyone kindly let me know how to make the installation complete,

thanks,