I have problems with installation of CLHEP on RedHat Linux 8.0.
CLHEP is a name of class library.
When I type the command "./configure" , following error(?) messages are shown:
"UNEXPECTED CHOICE OF C++ COMPILER: gcc SELECTED C++ COMPILER: gcc"
"Cannot find include files for C++ run time library.
Pleases add the relevant directory to the TOPINCLUDES macro in the Makefile(s)" etc.
I have already set CXX environment variable to "gcc".
Please tell me a meaning of the messages and how to deal with this.