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"samurai" is actually just the name of my computer. I am using Archlinux with linux kernal 2.6.39.

I am using the diamondback ROS release with the latest update by rosinstall.

For the error involving the pcl package, I had googled that error, though without success. I checked the manifest.xml of pcl. The only independent system dependency is libqhull, which I have installed. And all the other ROS package dependencies (cminpack, eigen, flann) have all been built. Some people have a similar error while compiling another C++ library, and it appeared to be an issue with compiling directives...

Which version of gcc does ROS recommend? I can't seem to find this information anywhere. How can you use another gcc version, if you have it installed?

As for kdl, the manifest description reads

This package contains a recent version of the Kinematics and Dynamics Library (KDL), distributed by the Orocos Project. For stability reasons, this package is currently locked to revision 31715 of April 26 2010 (C-turtle) and revision 30401 of August 8 2009 (Boxturtle), but this revision will be updated on a regular basis to the latest available KDL trunk. This ROS package does not intend to modify KDL in any way, it simply provides a convenient way to download and compile the library, because KDL is not available from an OS package manager. However, this package might contain some temporary patches to KDL while they are being applied upstream, or while a permanent fix for a problem is being discussed by the KDL community.

What I can't figure is why the 4 patches to kdl failed, as described in my original post. Is it system specific?

"samurai" is actually just the name of my computer. I am using Archlinux with linux kernal 2.6.39.

I am using the diamondback ROS release with the latest update by rosinstall.

For the error involving the pcl package, I had googled that error, though without success. I checked the manifest.xml of pcl. The only independent system dependency is libqhull, which I have installed. And all the other ROS package dependencies (cminpack, eigen, flann) have all been built. Some people have a similar error while compiling another C++ library, and it appeared to be an issue with compiling directives...

Which version of gcc does ROS recommend? I can't seem to find this information anywhere. How can you use another gcc version, if you have it installed?

As for kdl, the manifest description reads

This package contains a recent version of the Kinematics and Dynamics Library (KDL), distributed by the Orocos Project. For stability reasons, this package is currently locked to revision 31715 of April 26 2010 (C-turtle) and revision 30401 of August 8 2009 (Boxturtle), but this revision will be updated on a regular basis to the latest available KDL trunk. This ROS package does not intend to modify KDL in any way, it simply provides a convenient way to download and compile the library, because KDL is not available from an OS package manager. However, this package might contain some temporary patches to KDL while they are being applied upstream, or while a permanent fix for a problem is being discussed by the KDL community.

What I can't figure out is why the 4 patches to kdl failed, as described in my original post. Is it system specific?