How to create pkg which installs files to /usr/local I tried using Whitebox's Packages to create an installer for a LaunchDaemon. The daemon calls a shell script, which itself sources a configuration file.

So what I would like is an installer which installs:


/Library/LaunchDaemons/my_daemon.plist. (This is not a problem).
/usr/local/bin/myscript.sh
/usr/local/etc/myscript.conf


I cannot find how to specify the destination path of /usr/local. 

Packages doesn't let me edit the destination of these 2 files, and seems to want to install to "./myscript.sh" and "./myscript.conf", even though it did let me define the absolute destination for the .plist file in /Library/LaunchDaemons.

I guess I could write a postinstall script which creates the directories if needed and copies the files there. But isn't there a better/simpler solution which I am overlooking?

In other words, how can I create a .pkg installer which lets me specify absolute directories for some files, and which creates these directories during the install if needed.

Is a postinstall shell script the only solution, or is there a way to have Packages do things automatically, or is there some other package-creation app which would be more practical for this?
Rather than using a script to create /usr/local and its subfolders, include them as part of the package's payload. That is, create a prototype "local" folder with "bin" and "etc" subfolders, and your script and conf file in them. Set the permissions correctly (root:admin, 755 for all but the conf file, 644 or maybe 664 for that). Then create an installer package that places that whole folder structure in /usr.

Note that if /usr/local (and some subfolders and files) already exist, the installer will simply merge your package's payload with what already exists (i.e. it does exactly what you want).