[Pkg-octave-devel] postrm instead of prerm for packages with pkg.m

[Thomas Weber]

We currently call "pkg rebuild" in a prerm script for all octave-forge
packages. I think that must go into a postrm script:

The following is a package install-purge lifecycle. Note that Octave still
thinks the package is there at the end.

# octave --silent --eval "pkg list"
no packages installed.

# aptitude install octave-nan
...

# octave --silent --eval "pkg list"
Package Name  | Version | Installation directory
--------------+---------+-----------------------
         nan *|   1.0.6 | /usr/share/octave/packages/nan-1.0.6

# aptitude purge octave-nan
...


# octave --silent --eval "pkg list"
Package Name  | Version | Installation directory
--------------+---------+-----------------------
         nan  |   1.0.6 | /usr/share/octave/packages/nan-1.0.6


The package is still mentioned in octave_packages, but the files have been
removed.

	Thomas