ports/185974: /usr/ports/security/gnutls fails to install on freshly upgraded 10, 0-RELEASE

[n/a]

>Number:         185974
>Category:       ports
>Synopsis:       /usr/ports/security/gnutls fails to install on freshly upgraded 10,0-RELEASE
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 21 23:00:00 UTC 2014
>Closed-Date:
>Last-Modified:
>Originator:     n/a
>Release:        FreeBSD 10.0-RELEASE
>Organization:
n/a
>Environment:
FreeBSD micro 10.0-RELEASE FreeBSD 10.0-RELEASE #0 r260789: Thu Jan 16 22:34:59 UTC 2014     root at snap.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
Attempting to install /usr/ports/security/gnutls results in:

..
Making all in nettle
gmake[6]: Entering directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib/nettle'
gmake[6]: Nothing to be done for `all'.
gmake[6]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib/nettle'
gmake[6]: Entering directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib'
  CXXLD  libgnutlsxx.la
c++: warning: argument unused during compilation: '-pthread'
/usr/bin/ld: cannot find -lstdc++
c++: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[6]: *** [libgnutlsxx.la] Error 1
gmake[6]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib'
gmake[5]: *** [all-recursive] Error 1
gmake[5]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib'
gmake[4]: *** [all] Error 2
gmake[4]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23/lib'
gmake[3]: *** [all-recursive] Error 1
gmake[3]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23'
gmake[2]: *** [all] Error 2
gmake[2]: Leaving directory `/usr/ports/security/gnutls/work/gnutls-2.12.23'
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/security/gnutls
*** Error code 1

Stop.
make: stopped in /usr/ports/security/gnutls

repeating with MAKE_JOBS_UNSAFE=yes doesn't change anything...

>How-To-Repeat:
cd /usr/ports/security/gnutls && make on a FreeBSD 10.0-RELEASE
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: