Hi all

On my debian/testing machine I have a 3rd party package
gerris-snapshot (the debian gerris package is very old).
And ...

> apt-cache show libgsl0-dev

Package: libgsl0-dev
:
Version: 1.11-2
:
Depends: libgsl0ldbl (= 1.11-2)

> apt-cache show libgsl0ldbl

Version: 1.11-2
Replaces: gsl, libgsl0 (<= 1.9-4)
:
Conflicts: gsl, libgsl0

> apt-cache show gerris-snapshot

Package: gerris-snapshot
Version: 1.2.0-080705
Depends: libc6-dev | libc-dev, libgts-snapshot-dev (>= 0.7.6),
pkg-config, gcc, sed, gawk, m4, proj, libnetcdf3, libgsl0

so that if I want to use the GSL development library

> sudo apt-get install libgsl0-dev libgsl0ldbl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED
gerris-snapshot gfsview-snapshot libgsl0 vfplot
The following NEW packages will be installed

The author of the package is prepared to replace its dependancies
by

Depends: libc6-dev | libc-dev, libgts-snapshot-dev (>= 0.7.6),
pkg-config, gcc, sed, gawk, m4, proj, libnetcdf3, libgsl0 |
libgsl0ldbl

but queries why this should be necessary -- if libgsl0ldbl
replaces libgsl0 then shouldn't the package libgsl0ldbl suffice to
satisfy gerris-snapshot's dependancy on libgsl0?

If not, would I be foolish to ask for this as a feature request?

Thanks in advance!

Jim


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On 2008-07-29 11:57 +0200, j.j.fishbat@gmail.com wrote:

> On my debian/testing machine I have a 3rd party package
> gerris-snapshot (the debian gerris package is very old).
> And ...
>
> > apt-cache show libgsl0-dev
>
> Package: libgsl0-dev
> :
> Version: 1.11-2
> :
> Depends: libgsl0ldbl (= 1.11-2)
>
> > apt-cache show libgsl0ldbl
>
> Version: 1.11-2
> Replaces: gsl, libgsl0 (<= 1.9-4)
> :
> Conflicts: gsl, libgsl0

See http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=477732 for the
reasons why this "Conflicts" is necessary.

> > apt-cache show gerris-snapshot
>
> Package: gerris-snapshot
> Version: 1.2.0-080705
> Depends: libc6-dev | libc-dev, libgts-snapshot-dev (>= 0.7.6),
> pkg-config, gcc, sed, gawk, m4, proj, libnetcdf3, libgsl0

This seems strange. Why should it depend on sed, which is an essential
package? And why does it not have versioned dependencies on the last
two libraries?

> so that if I want to use the GSL development library
>
> > sudo apt-get install libgsl0-dev libgsl0ldbl
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> The following packages will be REMOVED
> gerris-snapshot gfsview-snapshot libgsl0 vfplot
> The following NEW packages will be installed
>
> The author of the package is prepared to replace its dependancies
> by
>
> Depends: libc6-dev | libc-dev, libgts-snapshot-dev (>= 0.7.6),
> pkg-config, gcc, sed, gawk, m4, proj, libnetcdf3, libgsl0 |
> libgsl0ldbl

He's obviously not using normal Debian tools to build his package.
BTW, libnetcdf3 is not available in testing either.

> but queries why this should be necessary -- if libgsl0ldbl
> replaces libgsl0 then shouldn't the package libgsl0ldbl suffice to
> satisfy gerris-snapshot's dependancy on libgsl0?

In general, no. But it may work in this case, as libgs0dbl seems to be
compatible with libgs0 on some architectures, including i386.

> If not, would I be foolish to ask for this as a feature request?

Ask whom for what?

Sven


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Sven

Many thanks -- the link fully answers my question

Cheers

Jim


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