Thank You for all your help ... I finally just did a git clone of
tdenetwork then did a git checkout of the r14.0.1 commit -
1da54d8c259178905007ddd1979d53a9e5901cb2 - the package successfully
compiled and installed :-) ... So thank you for your help!
P.S. : It may be advisable to change the R14.0.1 - Current download
package of tdenetwork to reflect the tdenetwork-r14.0.1 source code,
because until I checked the CMakeLists.txt file I simply assumed that
the download package tdenetwork-r14.0.1 was the source code for
tdenetwork-r14.0.1.