[ros-users] ROS C Turtle Alpha 5 released
d.stonier at gmail.com
Wed Jul 14 23:19:39 UTC 2010
I avoided the problem for our team by writing a supplementary python
script which would preclean, rebuild and then protect (ROS_NOBUILD)
the base ros packages that our group uses. They're quite happy
updating and then rerunning that whenever they do - it's probably
exactly what you need to do.
On 15 July 2010 04:01, Josh Faust <jfaust at willowgarage.com> wrote:
> Because --pre-clean is much, much slower if you've already built things. If
> things aren't rebuilding properly when switching between distros that's
> likely a bug in rosbuild, and you should file a ticket.
> On Wed, Jul 14, 2010 at 11:57 AM, Dan Lazewatsky <dlaz at cse.wustl.edu> wrote:
>> I've noticed similar confusion from less experienced folks about when
>> to clean. Is there a reason that rosmake doesn't run make clean by
>> default? We're going to be setting up one of our computer labs with
>> ROS for the fall semester, and I'm wondering if I should alias rosmake
>> to rosmake --pre-clean to avoid the inevitable slew of emails from
>> frantic students.
>> On Jul 14, 2010, at 12:54 PM, Jack O'Quin wrote:
>> > On Mon, Jul 12, 2010 at 7:40 PM, Ken Conley <kwc at willowgarage.com>
>> > wrote:
>> >> More information here:
>> >> http://www.ros.org/news/2010/07/ros-c-turtle-alpha-5-released.html
>> >> -- your friendly neighborhood ROS C Turtle team
>> > We have been upgrading many of our students from boxturtle to cturtle.
>> > The binary installs seem to work fine. But several students stumbled
>> > over problems of binary incompatibility for external packages built
>> > with the two releases.
>> > After installing the cturtle packages, they update $ROS_PACKAGE_PATH
>> > and try to run their code. It generally segfaults, and they don't know
>> > what to do (these are smart, but relatively inexperienced
>> > undergraduates).
>> > Even running rosmake again does not work. Apparently, the build
>> > subtree is full of incompatible files. So, they need to at least use
>> > the rosmake --pre-clean option. I've been recommending that they check
>> > out a whole new tree and build that.
>> > So, this is not a big deal, but I was surprised how much confusion it
>> > created. It should probably be documented somehow in the release
>> > notes.
>> > If it were possible for rosmake and rosrun to detect packages built
>> > with the old ABI and issue a clear warning, that would help a lot.
>> > Even better if rosmake could automatically do the right thing (e.g.
>> > "make clean && make").
>> > I consider this more of a documentation issue than a defect, but
>> > probably many more users will stumble over it soon.
>> > --
>> > joq
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