rtt_roscomm: Boost header generation broken with genmsg 0.4.22

[meyerj]

ros/genmsg#32 has broken typekit generation as ${${package}_MESSAGE_FILES} variable contains relative paths now. The current Ubuntu repositories serve genmsg 0.4.22 including that patch since today.

We have to check if this can be considered a bug in genmsg or if there is a simple way to get the absolute path in a generic way.

Possible solution (not tested yet):

if(NOT IS_ABSOLUTE "${FILE}")
  set(FILE "${${package}_DIR}/${FILE}")
endif()

[jbohren]

Blah. Yeah, this might be an acceptable solution. It definitely seems easier than having to go through the process of changing genmsg.

[meyerj]

I guess it's not a bug. There have been huge efforts to ban every occurence of absolute paths from the install-space in order to make it relocatable: ros/catkin#490.

[jbohren]

I guess it's not a bug. There have been huge efforts to ban every occurence of absolute paths from the install-space in order to make it relocatable: ros/catkin#490.

Yeah, that's what it seems like. At least this shouldn't be too hard to fix. Meanwhile, did you have a chance to look at #5 ?