Re: keep specific versions of packages
On Sat, 30 Dec 2006, Francesco Pietra wrote:
dselect recognizes the mpqc 2.3.1-0.2 installation and
I could place "H" on that.
that's ok. You should actually put on hold all packages which come from the
mpqc source package. To see what packages come from a given source package
you can use the apt-cache command, as in "apt-cache showsrc mpqc". This will
tell you that the mpqc source package generates the binary packages: mpqc,
libsc7, libsc-doc, libsc-dev, mpqc-support. You therefore ought to have
produced a 2.3.1-0.2 version of all of them as well, when you compiled your
personal mpqc. Install them and put them on hold as well. As to libint, is
it a library which is included in mpqc? A system library? A library you
compiled yourself as well which is not part of available debian packages? In
any case, I don't think you should need to do anything special about it.
Moreover, simply placing "H" on the mpqc package does prevent upgradind
dependencies, or is that immaterial to mpqc functioning?
Not necessarily. In any case, the only dependencies you should worry about
and put on hold are the ones on libraries coming from mpqc itself. In
principle it is possible that an upgrade to another library may cause
problems to mpqc, but changes which make a library incompatible with
previous versions are a very rare occurrence, avoided whenever possible
(even in unstable) due to the havoc such things may easily wreak.
Ciao
Giacomo
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