moc command not found?

Question

On my Gentoo systems I've never had a problem with this and I run moc as I run any other command in the terminal. I recently switch to Fedora 15/16 and notice that running moc doesn't work. I get bash: moc: command not found.... Instead, I have to give its full path, /usr/lib64/qt4/bin/moc.

1. I would like to know why the Fedora folks have not set this up so calling moc just works without giving its full path (or, perhaps I've done something to break?)

2. As I'm very new to non-Gentoo systems, I would like to know of a universal way to call moc so that it works on any *nix system.

Answer 1

To be able to run application without specifying whole path to it, directory where executable is installed must be in $PATH variable. You can check what is in $PATH by using echo $PATH. To modify $PATH you can use export PATH=$PATH:/usr/lib64/qt4/bin/. After that you can use just moc to start it. To make changes permanent you may put that line to your ~/.bashrc file.

Answer 2

1) I would like to know why the Fedora folks have not set this up so calling moc just works without giving its full path (or, perhaps I've done something to break?)

This should be for backward compatibility with Qt3.

2) As I'm very new to non-Gentoo systems, I would like to know of a universal way to call moc so that it works on any *nix system.

You may use pkg-config :

pkg-config --variable=moc_location QtCore