Inconsistent rosdep for key fltk

[meyerj]

rosdep key fltk resolves to [fluid, libfltk1.1-dev] for Ubuntu since 21f94b8. Package fluid recommends libfltk1.3-dev in Ubuntu precise, which is incompatible with libfltk1.1-dev required by rosdep.

Although this is not really a conflict as libfltk1.3-dev is only a recommendation, it obviously causes errors on Hudson, e.g.

• http://build.willowgarage.com/job/devel_groovy_hector_quadrotor_precise_amd64/15/ or
• http://build.willowgarage.com/view/devel_groovy/job/devel_groovy_hector_gazebo_precise_amd64/21/.

I cannot reproduce this result locally, but I assume that apt is somehow configured to always install recommended packages and even to allow removal of conflicting packages on the build servers.

See also ros-infrastructure/jenkins_scripts#46.

[tfoote]

$sudo apt-get install libfltk1.1-dev libfltk1.3-dev

The conflict is this:

The following packages have unmet dependencies:
libfltk1.1-dev : Conflicts: libfltk-dev
libfltk1.3-dev : Conflicts: libfltk-dev
E: Unable to correct problems, you have held broken packages.

[tfoote]

Reviewing this it seems that 1.3 is now the recommended one. We should update the rule to point to 1.3 for newer versions. I don't want to break anything already running so my suggestion would be to make the change for vivid and forward. Leaving the older systems as they are.

[dirk-thomas]

Why not also for utopic?

[tfoote]

Good point I was thinking about utopic already being out. but we haven't released ROS on top yet so that should be fine.

[deffi]

Now calling rosdep install (as described on indigo/Installation/Source) alternatingly installs libfltk1.3-dev and libfltk1.1-dev, and uninstalls the other.

Adding the following line to a local rosdep YAML file resolves the issue, only installing 1.3:
fltk: { ubuntu: { utopic: ["fluid", "libfltk1.3-dev"] } }

In fact, looking at rosdistro/rosdep/base.yaml reveals that the fix (9fd2c55) sets the correct version for libfltk-dev, but fltk still refers to libfltk1.1-dev on all Ubuntu versions.