That probably deserves some bug reports instead of a thread but I fixed the
redefined error in the ROS wrappers last week in SVN:
https://code.ros.org/svn/ros-pkg/stacks/slam_gmapping/trunk/gmapping/gmapping-r39-2.patch

gmapping compiles on gcc 4.7 now.

Not sure about your other error.

On Sun, May 6, 2012 at 8:54 AM, Kevin Walchko <kevin.walchko@gmail.com>wrote:

> OSX 10.7.2
> Fuerte
> XCode 4.3.2
>
>
> I found a strange error in gmapping under
> build/gmapping_export/gridfastslam/gfs2rec.cpp, for some reason i gets
> redefined (line 148)?
>
> struct ResampleRecord: public Record{
>        vector<unsigned int> indexes;
>        virtual void read(istream& is){
>                is >> dim;
>                for (unsigned int i=0; i< dim; i++){
>                        unsigned int i; <<<<<<< why redefined???
>                        is >> i;
>                        indexes.push_back(i);
>                }
>        }
> };
>
> Unfortunately all of this code appears to be in a tar ball so when I fix
> the code and do a make clean, it all gets erased and downloaded again.
>
> I tried not doing the make clean, but it still fails because the makefile
> tries to reapply patches to code it already applied patches too. I
> commented out the code in cmakelists.txt so it can move on (it failed
> because of the failed patch re-applies), but then the next errors are the
> paths are not setup correctly.
>
> /Users/kevin/ros_sandbox/stacks/geometry/tf/include/tf/tf.h:91:23: warning:
>      in-class initializer for static data member of type 'const double' is
> a
>      GNU extension [-Wgnu]
>  static const double DEFAULT_CACHE_TIME = 10.0;  //!< The default ...
>                      ^                    ~~~~
> In file included from
> /Users/kevin/ros_sandbox/stacks/slam_gmapping/gmapping/src/slam_gmapping.cpp:107:
> /Users/kevin/ros_sandbox/stacks/slam_gmapping/gmapping/src/slam_gmapping.h:28:10:
> fatal error:
>      'gmapping/gridfastslam/gridslamprocessor.h' file not found
> #include "gmapping/gridfastslam/gridslamprocessor.h"
>         ^
> 1 warning and 1 error generated.
>
> This code is hosed … I assume it runs on Linux right? How can I fix the
> include path?
> Thanks!
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