CDO

Trying to compile CDO from the source here.
I am getting the following error message when I am trying to configure CDO.

checking whether icpc supports C++14 features with -std=gnu++14... no
checking whether icpc supports C++14 features with -std=gnu++1y... no
checking whether icpc supports C++14 features with -std=c++14... no
checking whether icpc supports C++14 features with +std=c++14... no
checking whether icpc supports C++14 features with -h std=c++14... no
checking whether icpc supports C++14 features with -std=c++1y... no
checking whether icpc supports C++14 features with +std=c++1y... no
checking whether icpc supports C++14 features with -h std=c++1y... no
configure: error: *** A compiler with support for C++14 language features is required.

I am using Intel compiler version 19.1.2.254, and I know for a fact that it supports C++14 standard. I even added "-std=c++14" compile flag into the environment variable when I specified the compiler, but it does not work... I do not know what to do.

Any help would be appreciated.

Thank you.