hi Ben,

What you're doing is reasonable, given that there's not currently
support for doing it any better.  However, you really want to be
testing the version of actionlib, not ros; the two evolve
independently.

There's currently no way to do that, so I've ticketed myself to add a
package/stack version query in rosbuild:
https://code.ros.org/trac/ros/ticket/3010 .

	brian.

On Wed, Sep 15, 2010 at 7:11 AM, Axelrod, Benjamin <baxelrod@irobot.com> wrote:
> Is there an easy way to test for the ROS version in a CMakeLists.txt file?
> For example, when using actionlib, two different sets of commands must be
> used to generate the action messages.  I came up with this CMake way to do
> it, but it is rather clumsy and I am not exactly sure of the version
> numbers.  It would be nice if rosbuild provided simple macros for this.
>
>
>
> execute_process(COMMAND rosversion ros
>
>                 RESULT_VARIABLE rosversion)
>
> IF (${rosversion} GREATER 1.05)
>
>   message("CTurtle")
>
> ELSE (${rosversion} GREATER 1.05)
>
>   message("BoxTurtle")
>
> ENDIF (${rosversion} GREATER 1.05)
>
>
>
> Thanks,
>
> -Ben
>
>
>
> Ben Axelrod
>
> Research Scientist
>
> iRobot Corporation
>
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>
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>
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>
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>
>
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