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<div class="moz-cite-prefix">I've actually been using pkg-config
from the exports with ParseConfig. If catkin provides pkg-config
support this sounds even easier than extracting manifest exports.<br>
<br>
Thanks!<br>
<br>
On 01/17/2013 03:21 PM, Eric Perko wrote:<br>
</div>
<blockquote
cite="mid:CAOtrKvkO8rQ-1nHnf0MCivDtnTp9RLfd+VQeFetBjjphVUuZxQ@mail.gmail.com"
type="cite">
<div dir="ltr">scons does have support for automatically grabbing
the appropriate include and link flags from pkg-config. See <a
moz-do-not-send="true"
href="http://www.scons.org/wiki/UsingPkgConfig">http://www.scons.org/wiki/UsingPkgConfig</a> (specifically
the ParseConfig command). I've not tried it with packages built
via catkin, but I have used it successfully with e.g. PCL.
<div>
<br>
</div>
<div style="">- Eric</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Thu, Jan 17, 2013 at 4:16 PM,
William Woodall <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:wwoodall@willowgarage.com" target="_blank">wwoodall@willowgarage.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Catkin
also provides CMake find_package infrastructure and
pkg-config infrastructure for each package. I would think
scons would support getting build flags from pkg-config
given its popularity in many dev libraries. That is likely
easier than extracting them from CMake and probably the
easiest method in general.
<div>
<br>
</div>
<div>--
<div>
<div class="h5"><br>
<br>
<div class="gmail_quote">On Thu, Jan 17, 2013 at 12:59
PM, Brian Wightman <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:brian.j.wightman@nasa.gov"
target="_blank">brian.j.wightman@nasa.gov</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">In
rosbuild I was able to use rospkg to grab all of
the [cflags, lflags] exports out of a given
package's manifest. Is there a plan to add this
functionality for catkin packages?<br>
<br>
My use-case may sound a bit odd:<br>
<br>
I have been using scons rather than cmake to build
packages. The rospkg manifest.xml parsing makes
this rather painless (20 lines of python to
collect all the build flags). Now with the
"exports" buried in cmake files, I don't have a
convenient way to access them.<br>
<br>
In particular, I have code that forwards ROS
messages between systems with separate roscore
instances. I have to compile in a
publisher/subscriber call for each message type so
I've found it convenient to auto-generate the
HPP/CPP files from a list of message-containing
packages (std_msgs, sensor_msgs, etc.) using
Python and rospkg.<br>
<br>
If anyone's curious, here's the scons build code
I've been using:<br>
<br>
import os, rospkg<br>
def load_ros_deps(env):<br>
pkg_name = os.path.basename(Dir('.').srcnode().abspath)<br>
depends = []<br>
for d in map(repr,
rospkg.RosPack().get_manifest(pkg_name).depends):<br>
depends.append(d)<br>
# load exports<br>
manifest = rospkg.RosPack().get_manifest(d)<br>
for f in [j for j in
[manifest.get_export('cpp', i) for i in ['cflags',
'lflags']] if j]:<br>
allf = f[0].split('`')<br>
for conf in allf[1::2]:<br>
env.ParseConfig(conf)<br>
env.MergeFlags(env.ParseFlags('
'.join(allf[0::2])))<br>
pkg_path = os.path.dirname(manifest.filename)<br>
msg_path = os.path.join(pkg_path,
'msg_gen', 'cpp', 'include')<br>
if os.path.exists(msg_path):<br>
env.MergeFlags(env.ParseFlags('-I{}'.format(msg_path)))<br>
<br>
env = Environment(<br>
ENV = {'PYTHONPATH': os.environ['PYTHONPATH'],
# allow us to call rosboost-cfg<br>
'PKG_CONFIG_PATH':
os.environ['PKG_CONFIG_PATH']},<br>
...<br>
)<br>
<br>
Certainly I can achieve the same thing with CMake,
but I find scons to be much nicer to work with.<br>
<br>
Thanks,<br>
Brian Wightman<br>
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</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
</div>
</div>
<span class="HOEnZb"><font color="#888888">-- <br>
William Woodall
<div>Willow Garage - Software Engineer</div>
<div><a moz-do-not-send="true"
href="mailto:wwoodall@willowgarage.com"
target="_blank">wwoodall@willowgarage.com</a></div>
</font></span></div>
<br>
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</blockquote>
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