Build fails: no candidate function template was found for dependent friend function template specialization

[Yuri]

FreeBSD port's build fails:

/wrkdirs/usr/ports/science/esys-particle/work/ESyS-Particle-2.3.5/Model/ElasticInteractionGroup.h:55:19: error: no candidate function template was found for dependent friend function template specialization
  friend ostream& operator<< <>(ostream&,const CElasticInteractionGroup<T>&);
                  ^
/wrkdirs/usr/ports/science/esys-particle/work/ESyS-Particle-2.3.5/Foundation/vec3.hpp:305:27: note: candidate ignored: not a function template
VEC3_INLINE std::ostream& operator << (std::ostream& ostr,const Vec3& V)

Version: 2.3.5

Log:
http://beefy11.nyi.freebsd.org/data/head-i386-default/p487333_s342022/logs/esys-particle-2.3.5_2.log

[Yuri (yuri-tsoft)]

Recent bug report: http://beefy12.nyi.freebsd.org/data/head-amd64-default/p500768_s347066/logs/esys-particle-2.3.5_4.log (IPv6)

[Yuri (yuri-tsoft)]

Correction: recent log: http://beefy12.nyi.freebsd.org/data/head-amd64-default/p500768_s347066/logs/esys-particle-2.3.5_4.log