I realized that with debian/rules
override_dh_auto_install:
dh_auto_install -- prefix=/usr
it's impossible to get a file copied into the directory structure of the debian package with the cp command, but with install yes. So I understood, or interpreted that only the install command is interpreted by the dpkg-buildpackage -us -uc -ui -i command to copy temporarilly the files into the .deb file before installing them during any dpkg -i process.
The problem is that when I want to copy many files and an entire directory structure, I'm unable to do it as mentionned in various places on the web with tricks like find command for ex.
So the problems I have now is how from a Makefile do I specify that I want that to be converted into real world of debian package??!!!
cp -r some/src/dir/from/current_dir /to/opt/myCompany/for/example/bin
ln -s /to/opt/myCompany/for/example/bin/ /usr/local/bin
Both are misinterpreted by the dpkg-buildpackage
