How to make Debian package install dependencies?

Question

I want to make a simple Debian package to install a simple tool that depends on Qt4 libs.

In control file I have defined that it depends on Qt4 libs however, by the time

Answer 1

If you want to avoid creating a local APT repository, you can do:

dpkg -i mypackage.deb
apt-get install --fix-missing

If you do want to create a local repository, you can use reprepro for this.