=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for powerdns-4.6.4nb5
/usr/pkg/bin/gmake  all-recursive
gmake[1]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4'
Making all in ext
gmake[2]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext'
Making all in ipcrypt
gmake[3]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/ipcrypt'
  CC       ipcrypt.lo
  CCLD     libipcrypt.la
gmake[3]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/ipcrypt'
Making all in json11
gmake[3]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/json11'
  CXX      json11.lo
  CXXLD    libjson11.la
gmake[3]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/json11'
Making all in yahttp
gmake[3]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp'
Making all in yahttp
gmake[4]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp/yahttp'
  CXX      reqresp.lo
  CXX      router.lo
  CXXLD    libyahttp.la
gmake[4]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp/yahttp'
gmake[4]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp'
gmake[4]: Nothing to be done for 'all-am'.
gmake[4]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp'
gmake[3]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext/yahttp'
gmake[3]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/ext'
gmake[3]: Nothing to be done for 'all-am'.
gmake[3]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext'
gmake[2]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/ext'
Making all in modules
gmake[2]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/modules'
Making all in bindbackend
gmake[3]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/modules/bindbackend'
/usr/pkg/bin/gmake  all-am
gmake[4]: Entering directory '/tmp/net/powerdns/work/pdns-4.6.4/modules/bindbackend'
  CXX      bindbackend2.lo
  CXX      binddnssec.lo
In file included from bindbackend2.hh:42:0,
                 from binddnssec.cc:26:
../../pdns/lock.hh:24:10: error: /usr/include/g++/shared_mutex: Input/output error
 #include <shared_mutex>
          ^~~~~~~~~~~~~~
In file included from ../../pdns/ueberbackend.hh:34:0,
                 from ../../pdns/dnsseckeeper.hh:35,
                 from bindbackend2.cc:40:
../../pdns/lock.hh:24:10: error: /usr/include/g++/shared_mutex: Input/output error
 #include <shared_mutex>
          ^~~~~~~~~~~~~~
../../pdns/lock.hh:92:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex& getLock()
        ^~~~~~~~~~~~
../../pdns/lock.hh:98:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex d_lock;
        ^~~~~~~~~~~~
../../pdns/lock.hh:119:29: error: expected ')' before '&' token
   ReadLock(std::shared_mutex& lock) : d_lock(lock)
                             ^
../../pdns/lock.hh:123:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadWriteLock&)':
../../pdns/lock.hh:104:48: error: 'class ReadWriteLock' has no member named 'getLock'
   ReadLock(ReadWriteLock& lock): ReadLock(lock.getLock())
                                                ^~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadWriteLock*)':
../../pdns/lock.hh:108:49: error: 'class ReadWriteLock' has no member named 'getLock'
   ReadLock(ReadWriteLock* lock): ReadLock(lock->getLock())
                                                 ^~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadLock&&)':
../../pdns/lock.hh:114:30: error: class 'ReadLock' does not have any field named 'd_lock'
   ReadLock(ReadLock&& rhs) : d_lock(std::move(rhs.d_lock))
                              ^~~~~~
../../pdns/lock.hh:114:51: error: 'class ReadLock' has no member named 'd_lock'
   ReadLock(ReadLock&& rhs) : d_lock(std::move(rhs.d_lock))
                                                   ^~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:144:30: error: expected ')' before '&' token
   WriteLock(std::shared_mutex& lock) : d_lock(lock)
                              ^
../../pdns/lock.hh:148:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:148:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:148:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In constructor 'WriteLock::WriteLock(ReadWriteLock&)':
../../pdns/lock.hh:129:50: error: 'class ReadWriteLock' has no member named 'getLock'
   WriteLock(ReadWriteLock& lock): WriteLock(lock.getLock())
                                                  ^~~~~~~
../../pdns/lock.hh: In constructor 'WriteLock::WriteLock(ReadWriteLock*)':
../../pdns/lock.hh:133:51: error: 'class ReadWriteLock' has no member named 'getLock'
   WriteLock(ReadWriteLock* lock): WriteLock(lock->getLock())
                                                   ^~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:171:32: error: expected ')' before '&' token
   TryReadLock(std::shared_mutex& lock) : d_lock(lock, std::try_to_lock)
                                ^
../../pdns/lock.hh:175:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'TryReadLock::TryReadLock(ReadWriteLock&)':
../../pdns/lock.hh:154:54: error: 'class ReadWriteLock' has no member named 'getLock'
   TryReadLock(ReadWriteLock& lock): TryReadLock(lock.getLock())
                                                      ^~~~~~~
../../pdns/lock.hh: In constructor 'TryReadLock::TryReadLock(ReadWriteLock*)':
../../pdns/lock.hh:158:55: error: 'class ReadWriteLock' has no member named 'getLock'
   TryReadLock(ReadWriteLock* lock): TryReadLock(lock->getLock())
                                                       ^~~~~~~
../../pdns/lock.hh: In member function 'bool TryReadLock::gotIt() const':
../../pdns/lock.hh:167:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:167:12: note: suggested alternative: 'clock'
     return d_lock.owns_lock();
            ^~~~~~
            clock
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:198:33: error: expected ')' before '&' token
   TryWriteLock(std::shared_mutex& lock) : d_lock(lock, std::try_to_lock)
                                 ^
../../pdns/lock.hh:202:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:202:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:202:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In constructor 'TryWriteLock::TryWriteLock(ReadWriteLock&)':
../../pdns/lock.hh:181:56: error: 'class ReadWriteLock' has no member named 'getLock'
   TryWriteLock(ReadWriteLock& lock): TryWriteLock(lock.getLock())
                                                        ^~~~~~~
../../pdns/lock.hh: In constructor 'TryWriteLock::TryWriteLock(ReadWriteLock*)':
../../pdns/lock.hh:185:57: error: 'class ReadWriteLock' has no member named 'getLock'
   TryWriteLock(ReadWriteLock* lock): TryWriteLock(lock->getLock())
                                                         ^~~~~~~
../../pdns/lock.hh: In member function 'bool TryWriteLock::gotIt() const':
../../pdns/lock.hh:194:19: error: request for member 'owns_lock' in '((const TryWriteLock*)this)->TryWriteLock::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:306:46: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedHolder(T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                              ^~~
../../pdns/lock.hh:319:24: error: 'shared_mutex' is not a member of 'std'
   std::lock_guard<std::shared_mutex> d_lock;
                        ^~~~~~~~~~~~
../../pdns/lock.hh:319:24: note: suggested alternative: 'timed_mutex'
   std::lock_guard<std::shared_mutex> d_lock;
                        ^~~~~~~~~~~~
                        timed_mutex
../../pdns/lock.hh:319:36: error: template argument 1 is invalid
   std::lock_guard<std::shared_mutex> d_lock;
                                    ^
../../pdns/lock.hh:327:49: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedTryHolder(T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                 ^~~
../../pdns/lock.hh:354:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:354:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:354:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In member function 'SharedLockGuardedTryHolder<T>::operator bool() const':
../../pdns/lock.hh:346:19: error: request for member 'owns_lock' in '((const SharedLockGuardedTryHolder<T>*)this)->SharedLockGuardedTryHolder<T>::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: In member function 'bool SharedLockGuardedTryHolder<T>::owns_lock() const':
../../pdns/lock.hh:350:19: error: request for member 'owns_lock' in '((const SharedLockGuardedTryHolder<T>*)this)->SharedLockGuardedTryHolder<T>::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:362:64: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedNonExclusiveHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                                                ^~~
../../pdns/lock.hh:375:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'SharedLockGuardedNonExclusiveHolder<T>::SharedLockGuardedNonExclusiveHolder(const T&, int&)':
../../pdns/lock.hh:362:91: error: class 'SharedLockGuardedNonExclusiveHolder<T>' does not have any field named 'd_lock'
   explicit SharedLockGuardedNonExclusiveHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                                                                           ^~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:383:67: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedNonExclusiveTryHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                                   ^~~
In file included from bindbackend2.hh:42:0,
                 from binddnssec.cc:26:
../../pdns/lock.hh:410:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
In file included from bindbackend2.hh:42:0,
                 from binddnssec.cc:26:
../../pdns/lock.hh: In constructor 'SharedLockGuardedNonExclusiveTryHolder<T>::SharedLockGuardedNonExclusiveTryHolder(const T&, int&)':
../../pdns/lock.hh:383:94: error: class 'SharedLockGuardedNonExclusiveTryHolder<T>' does not have any field named 'd_lock'
   explicit SharedLockGuardedNonExclusiveTryHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                                                              ^~~~~~
In file included from bindbackend2.hh:42:0,
                 from binddnssec.cc:26:
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveTryHolder<T>::operator bool() const':
../../pdns/lock.hh:402:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:402:12: note: suggested alternative: 'clock'
     return d_lock.owns_lock();
            ^~~~~~
            clock
../../pdns/lock.hh: In member function 'bool SharedLockGuardedNonExclusiveTryHolder<T>::owns_lock() const':
../../pdns/lock.hh:406:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:406:12: note: suggested alternative: 'clock'
     return d_lock.owns_lock();
            ^~~~~~
            clock
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:451:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex d_mutex;
        ^~~~~~~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedTryHolder<T> SharedLockGuarded<T>::try_write_lock()':
../../pdns/lock.hh:432:51: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedTryHolder<T>(d_value, d_mutex);
                                                   ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedHolder<T> SharedLockGuarded<T>::write_lock()':
../../pdns/lock.hh:437:48: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedHolder<T>(d_value, d_mutex);
                                                ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveTryHolder<T> SharedLockGuarded<T>::try_read_lock()':
../../pdns/lock.hh:442:63: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedNonExclusiveTryHolder<T>(d_value, d_mutex);
                                                               ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveHolder<T> SharedLockGuarded<T>::read_lock()':
../../pdns/lock.hh:447:60: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedNonExclusiveHolder<T>(d_value, d_mutex);
                                                            ^~~~~~~
../../pdns/lock.hh:92:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex& getLock()
        ^~~~~~~~~~~~
../../pdns/lock.hh:98:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex d_lock;
        ^~~~~~~~~~~~
../../pdns/lock.hh:119:29: error: expected ')' before '&' token
   ReadLock(std::shared_mutex& lock) : d_lock(lock)
                             ^
../../pdns/lock.hh:123:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadWriteLock&)':
../../pdns/lock.hh:104:48: error: 'class ReadWriteLock' has no member named 'getLock'
   ReadLock(ReadWriteLock& lock): ReadLock(lock.getLock())
                                                ^~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadWriteLock*)':
../../pdns/lock.hh:108:49: error: 'class ReadWriteLock' has no member named 'getLock'
   ReadLock(ReadWriteLock* lock): ReadLock(lock->getLock())
                                                 ^~~~~~~
../../pdns/lock.hh: In constructor 'ReadLock::ReadLock(ReadLock&&)':
../../pdns/lock.hh:114:30: error: class 'ReadLock' does not have any field named 'd_lock'
   ReadLock(ReadLock&& rhs) : d_lock(std::move(rhs.d_lock))
                              ^~~~~~
../../pdns/lock.hh:114:51: error: 'class ReadLock' has no member named 'd_lock'
   ReadLock(ReadLock&& rhs) : d_lock(std::move(rhs.d_lock))
                                                   ^~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:144:30: error: expected ')' before '&' token
   WriteLock(std::shared_mutex& lock) : d_lock(lock)
                              ^
../../pdns/lock.hh:148:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:148:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:148:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In constructor 'WriteLock::WriteLock(ReadWriteLock&)':
../../pdns/lock.hh:129:50: error: 'class ReadWriteLock' has no member named 'getLock'
   WriteLock(ReadWriteLock& lock): WriteLock(lock.getLock())
                                                  ^~~~~~~
../../pdns/lock.hh: In constructor 'WriteLock::WriteLock(ReadWriteLock*)':
../../pdns/lock.hh:133:51: error: 'class ReadWriteLock' has no member named 'getLock'
   WriteLock(ReadWriteLock* lock): WriteLock(lock->getLock())
                                                   ^~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:171:32: error: expected ')' before '&' token
   TryReadLock(std::shared_mutex& lock) : d_lock(lock, std::try_to_lock)
                                ^
../../pdns/lock.hh:175:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'TryReadLock::TryReadLock(ReadWriteLock&)':
../../pdns/lock.hh:154:54: error: 'class ReadWriteLock' has no member named 'getLock'
   TryReadLock(ReadWriteLock& lock): TryReadLock(lock.getLock())
                                                      ^~~~~~~
../../pdns/lock.hh: In constructor 'TryReadLock::TryReadLock(ReadWriteLock*)':
../../pdns/lock.hh:158:55: error: 'class ReadWriteLock' has no member named 'getLock'
   TryReadLock(ReadWriteLock* lock): TryReadLock(lock->getLock())
                                                       ^~~~~~~
../../pdns/lock.hh: In member function 'bool TryReadLock::gotIt() const':
../../pdns/lock.hh:167:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:167:12: note: suggested alternative: 'flock'
     return d_lock.owns_lock();
            ^~~~~~
            flock
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:198:33: error: expected ')' before '&' token
   TryWriteLock(std::shared_mutex& lock) : d_lock(lock, std::try_to_lock)
                                 ^
../../pdns/lock.hh:202:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:202:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:202:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In constructor 'TryWriteLock::TryWriteLock(ReadWriteLock&)':
../../pdns/lock.hh:181:56: error: 'class ReadWriteLock' has no member named 'getLock'
   TryWriteLock(ReadWriteLock& lock): TryWriteLock(lock.getLock())
                                                        ^~~~~~~
../../pdns/lock.hh: In constructor 'TryWriteLock::TryWriteLock(ReadWriteLock*)':
../../pdns/lock.hh:185:57: error: 'class ReadWriteLock' has no member named 'getLock'
   TryWriteLock(ReadWriteLock* lock): TryWriteLock(lock->getLock())
                                                         ^~~~~~~
../../pdns/lock.hh: In member function 'bool TryWriteLock::gotIt() const':
../../pdns/lock.hh:194:19: error: request for member 'owns_lock' in '((const TryWriteLock*)this)->TryWriteLock::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:306:46: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedHolder(T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                              ^~~
../../pdns/lock.hh:319:24: error: 'shared_mutex' is not a member of 'std'
   std::lock_guard<std::shared_mutex> d_lock;
                        ^~~~~~~~~~~~
../../pdns/lock.hh:319:24: note: suggested alternative: 'timed_mutex'
   std::lock_guard<std::shared_mutex> d_lock;
                        ^~~~~~~~~~~~
                        timed_mutex
../../pdns/lock.hh:319:36: error: template argument 1 is invalid
   std::lock_guard<std::shared_mutex> d_lock;
                                    ^
../../pdns/lock.hh:327:49: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedTryHolder(T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                 ^~~
../../pdns/lock.hh:354:25: error: 'shared_mutex' is not a member of 'std'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
../../pdns/lock.hh:354:25: note: suggested alternative: 'timed_mutex'
   std::unique_lock<std::shared_mutex> d_lock;
                         ^~~~~~~~~~~~
                         timed_mutex
../../pdns/lock.hh:354:37: error: template argument 1 is invalid
   std::unique_lock<std::shared_mutex> d_lock;
                                     ^
../../pdns/lock.hh: In member function 'SharedLockGuardedTryHolder<T>::operator bool() const':
../../pdns/lock.hh:346:19: error: request for member 'owns_lock' in '((const SharedLockGuardedTryHolder<T>*)this)->SharedLockGuardedTryHolder<T>::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: In member function 'bool SharedLockGuardedTryHolder<T>::owns_lock() const':
../../pdns/lock.hh:350:19: error: request for member 'owns_lock' in '((const SharedLockGuardedTryHolder<T>*)this)->SharedLockGuardedTryHolder<T>::d_lock', which is of non-class type 'const int'
     return d_lock.owns_lock();
                   ^~~~~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:362:64: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedNonExclusiveHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                                                ^~~
../../pdns/lock.hh:375:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
../../pdns/lock.hh: In constructor 'SharedLockGuardedNonExclusiveHolder<T>::SharedLockGuardedNonExclusiveHolder(const T&, int&)':
../../pdns/lock.hh:362:91: error: class 'SharedLockGuardedNonExclusiveHolder<T>' does not have any field named 'd_lock'
   explicit SharedLockGuardedNonExclusiveHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex), d_value(value)
                                                                                           ^~~~~~
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:383:67: error: 'std::shared_mutex' has not been declared
   explicit SharedLockGuardedNonExclusiveTryHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                                   ^~~
In file included from ../../pdns/ueberbackend.hh:34:0,
                 from ../../pdns/dnsseckeeper.hh:35,
                 from bindbackend2.cc:40:
../../pdns/lock.hh:410:8: error: 'shared_lock' in namespace 'std' does not name a template type
   std::shared_lock<std::shared_mutex> d_lock;
        ^~~~~~~~~~~
In file included from ../../pdns/ueberbackend.hh:34:0,
                 from ../../pdns/dnsseckeeper.hh:35,
                 from bindbackend2.cc:40:
../../pdns/lock.hh: In constructor 'SharedLockGuardedNonExclusiveTryHolder<T>::SharedLockGuardedNonExclusiveTryHolder(const T&, int&)':
../../pdns/lock.hh:383:94: error: class 'SharedLockGuardedNonExclusiveTryHolder<T>' does not have any field named 'd_lock'
   explicit SharedLockGuardedNonExclusiveTryHolder(const T& value, std::shared_mutex& mutex): d_lock(mutex, std::try_to_lock), d_value(value)
                                                                                              ^~~~~~
In file included from ../../pdns/ueberbackend.hh:34:0,
                 from ../../pdns/dnsseckeeper.hh:35,
                 from bindbackend2.cc:40:
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveTryHolder<T>::operator bool() const':
../../pdns/lock.hh:402:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:402:12: note: suggested alternative: 'flock'
     return d_lock.owns_lock();
            ^~~~~~
            flock
../../pdns/lock.hh: In member function 'bool SharedLockGuardedNonExclusiveTryHolder<T>::owns_lock() const':
../../pdns/lock.hh:406:12: error: 'd_lock' was not declared in this scope
     return d_lock.owns_lock();
            ^~~~~~
../../pdns/lock.hh:406:12: note: suggested alternative: 'flock'
     return d_lock.owns_lock();
            ^~~~~~
            flock
../../pdns/lock.hh: At global scope:
../../pdns/lock.hh:451:8: error: 'shared_mutex' in namespace 'std' does not name a type
   std::shared_mutex d_mutex;
        ^~~~~~~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedTryHolder<T> SharedLockGuarded<T>::try_write_lock()':
../../pdns/lock.hh:432:51: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedTryHolder<T>(d_value, d_mutex);
                                                   ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedHolder<T> SharedLockGuarded<T>::write_lock()':
../../pdns/lock.hh:437:48: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedHolder<T>(d_value, d_mutex);
                                                ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveTryHolder<T> SharedLockGuarded<T>::try_read_lock()':
../../pdns/lock.hh:442:63: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedNonExclusiveTryHolder<T>(d_value, d_mutex);
                                                               ^~~~~~~
../../pdns/lock.hh: In member function 'SharedLockGuardedNonExclusiveHolder<T> SharedLockGuarded<T>::read_lock()':
../../pdns/lock.hh:447:60: error: 'd_mutex' was not declared in this scope
     return SharedLockGuardedNonExclusiveHolder<T>(d_value, d_mutex);
                                                            ^~~~~~~
gmake[4]: *** [Makefile:635: binddnssec.lo] Error 1
gmake[4]: *** Waiting for unfinished jobs....
gmake[4]: *** [Makefile:635: bindbackend2.lo] Error 1
gmake[4]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/modules/bindbackend'
gmake[3]: *** [Makefile:531: all] Error 2
gmake[3]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/modules/bindbackend'
gmake[2]: *** [Makefile:528: all-recursive] Error 1
gmake[2]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4/modules'
gmake[1]: *** [Makefile:580: all-recursive] Error 1
gmake[1]: Leaving directory '/tmp/net/powerdns/work/pdns-4.6.4'
gmake: *** [Makefile:512: all] Error 2
*** Error code 2

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/net/powerdns
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/net/powerdns