error: reference to 'TRAC_IK' is ambiguous

[Former user]

When I compile it on mac, I got this errors.

/build/trac_ik_python/trac_ik_wrapPYTHON_wrap.c:5609:12: error: reference to 'TRAC_IK' is ambiguous
SWIGINTERN TRAC_IK::TRAC_IK *new_TRAC_IK_TRAC_IK(std::string const &base_link,std::string const &tip_link,std::string const &urdf_string,double timeout,double epsilon,std::string const &solve_type="Speed"){
           ^
/opt/ros/lunar/include/trac_ik/trac_ik.hpp:42:11: note: candidate found by name lookup is 'TRAC_IK'
namespace TRAC_IK {
          ^
/opt/ros/lunar/include/trac_ik/trac_ik.hpp:46:9: note: candidate found by name lookup is 'TRAC_IK::TRAC_IK'
  class TRAC_IK

[Patrick Beeson]

Cannot reproduce.

[v4hn]

Apparently I am not allowed to file pull-requests here (???), but here is a one-line patch to resolve the problem. The use-namespace was not used to begin with, so it can simply be dropped.

The same problem occurs with clang-6 & swig 3.0.12 and although there is only one correct way to resolve the symbol in practice, the ambiguity is not resolved by clang. I suppose they interpret the standard stricter than gnu's gcc.

It would be great if you could add this fix to your master branch soon.

[Patrick Beeson]

There should be nothing stopping you from filing a PR. Multiple others have done it in the past.

[Patrick Beeson]

In any case, I made this change in master.