Control: found -1 aptitude/0.6.11
Hi Axel,
2015-10-20 21:18 Axel Beckert:
Package: aptitude
Version: 0.7.4-1
Either this was caused e.g. by recent-ish changes in apt, or the bug has
been present since ~2008 (code not modified since then), so I marked it
that at least it is found in the version of Jessie (confirmed it).
While checking why gnudatalanguage has "BD-Uninstallable" on most
architectures, I tried to install all build-dependencies locally.
First I checked what's missing in the extracted source package:
$ dpkg-checkbuilddeps
dpkg-checkbuilddeps: error: Unmet build dependencies: chrpath libeigen3-dev
libgsl0-dev libgraphicsmagick++1-dev libplplot-dev (>= 5.10.0+dfsg-1~) |
libplplot-dev (<= 5.10)
Looked reasonable.
Then I tried to install those packages as follows:
# aptitude build-dep gnudatalanguage
Unable to satisfy the build-depends: Build-Depends: libncurses-dev.
Unable to satisfy the build-depends: Build-Depends: libplplot-dev (
5.10.0+dfsg-1~) | libplplot-dev ( 5.10).
Unable to satisfy the build-depends: Build-Depends: libncurses-dev.
Unable to satisfy the build-depends: Build-Depends: libplplot-dev (
5.10.0+dfsg-1~) | libplplot-dev ( 5.10).
The following NEW packages will be installed:
chrpath libeigen3-dev libgraphicsmagick++1-dev libgraphicsmagick1-dev{a}
libgsl0-dev
0 packages upgraded, 5 newly installed, 0 to remove and 2 not upgraded.
Need to get 3,185 kB of archives. After unpacking 20.2 MB will be used.
Do you want to continue? [Y/n/?]
Please note the missing ">=" and "<=" in the error messages (compared to
the dpkg-checkbuilddeps output) while the space behind them is there.
Fixed in VCS, it was using the wrong variable (and the but was uncovered
for 7+ years, congrats!).
Also the trailing dot at the end of all these error messages looks wrong
-- but is probably not a technical issue, just a question of grammar.
I also find strange to have the trailing dot and I think that it would
better be removed, but all similar messages have this (I avoided to
remove it in another instance for the same reason, consistency), so I
think that if this is to be removed it's better if it's done in all
cases, and perhaps as part of a more general revamp of the command line
messages.
The following are the full build-dependencies from apt-cache showsrc
gnudatalanguage on the same machine:
Build-Depends: chrpath, cmake, debhelper (>= 9~), dpkg-dev (>= 1.16.1~),
libantlr-dev, libeigen3-dev, libfftw3-dev, libgrib-api-dev, libgsl0-dev, libhdf4-alt-dev,
libhdf5-dev | libhdf5-serial-dev, libgraphicsmagick++1-dev, libncurses-dev, libnetcdf-dev,
libplplot-dev (>= 5.10.0+dfsg-1~) | libplplot-dev (<= 5.10), libreadline-dev,
libudunits2-dev, libwxgtk3.0-dev, pslib-dev, python-all-dev, python-numpy, xauth, xvfb,
zlib1g-dev
libncurses-dev is btw. a virtual package while libplplot-dev isn't.
So the reason for the error message about libncurses-dev is
https://bugs.debian.org/509100 (aptitude: build-dep fails when a
virtual package is needed), but the fact that there is even an error
message for libplplot-dev is maybe related to the fact that the
comparison operator is not shown.
The problem of the operator not shown was only for printing, so it is
not the direct cause for this.
The dependency is a bit funny:
libplplot-dev (>= 5.10.0+dfsg-1~) | libplplot-dev (<= 5.10)
Maybe aptitude uses some wrong logic somewhere, gets a bit confused and
thinks that no package can satisfy those.
I very seldom use build-depends, but I never noticed a problem before,
and there are not many bugs about the issue, so I guess that there is
something specific about this dependency that makes it fail.
Cheers.
--
Manuel A. Fernandez Montecelo <manuel.montez...@gmail.com>
