root@doom-virtual-machine:/usr/src/idapay-refresh# make -j4
Making all in src
make[1]: Entering directory '/usr/src/idapay-refresh/src'
make[2]: Entering directory '/usr/src/idapay-refresh/src'
  CXX      libidapayconsensus_la-hash.lo
  CXX      libidapayconsensus_la-pubkey.lo
  CXX      libidapayconsensus_la-uint256.lo
  CXX      libidapayconsensus_la-utilstrencodings.lo
make[3]: Entering directory '/usr/src/idapay-refresh/src/secp256k1'
gcc -I. -g -O2 -Wall -Wextra -Wno-unused-function -c src/gen_context.c -o gen_context.o
  CXX      idapayd-idapayd.o
  GEN      idapayd-res.o
  CXX      libbitcoin_server_a-activemasternode.o
  CXX      libbitcoin_server_a-addrman.o
gcc gen_context.o -o gen_context
./gen_context
  CC       src/libsecp256k1_la-secp256k1.lo
  CCLD     libsecp256k1.la
libtool: warning: undefined symbols not allowed in x86_64-w64-mingw32 shared libraries; building static only
/usr/bin/x86_64-w64-mingw32-ar: `u' modifier ignored since `D' is the default (see `U')
make[3]: Leaving directory '/usr/src/idapay-refresh/src/secp256k1'
  CXX      libbitcoin_server_a-addrdb.o
  CXX      libbitcoin_server_a-alert.o
In file included from net.h:21:0,
                 from activemasternode.h:10,
                 from activemasternode.cpp:5:
threadinterrupt.h:29:10: error: ‘condition_variable’ in namespace ‘std’ does not name a type
     std::condition_variable cond;
          ^
threadinterrupt.h:30:10: error: ‘mutex’ in namespace ‘std’ does not name a type
     std::mutex mut;
          ^
In file included from activemasternode.h:10:0,
                 from activemasternode.cpp:5:
net.h:496:10: error: ‘condition_variable’ in namespace ‘std’ does not name a type
     std::condition_variable condMsgProc;
          ^
net.h:497:10: error: ‘mutex’ in namespace ‘std’ does not name a type
     std::mutex mutexMsgProc;
          ^
net.h:502:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadDNSAddressSeed;
          ^
net.h:503:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadSocketHandler;
          ^
net.h:504:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadOpenAddedConnections;
          ^
net.h:505:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadOpenConnections;
          ^
net.h:506:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadMnbRequestConnections;
          ^
net.h:507:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadMessageHandler;
          ^
Makefile:5541: recipe for target 'libbitcoin_server_a-activemasternode.o' failed
make[2]: *** [libbitcoin_server_a-activemasternode.o] Error 1
make[2]: *** Waiting for unfinished jobs....
In file included from net.h:21:0,
                 from alert.cpp:10:
threadinterrupt.h:29:10: error: ‘condition_variable’ in namespace ‘std’ does not name a type
     std::condition_variable cond;
          ^
threadinterrupt.h:30:10: error: ‘mutex’ in namespace ‘std’ does not name a type
     std::mutex mut;
          ^
In file included from alert.cpp:10:0:
net.h:496:10: error: ‘condition_variable’ in namespace ‘std’ does not name a type
     std::condition_variable condMsgProc;
          ^
net.h:497:10: error: ‘mutex’ in namespace ‘std’ does not name a type
     std::mutex mutexMsgProc;
          ^
net.h:502:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadDNSAddressSeed;
          ^
net.h:503:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadSocketHandler;
          ^
net.h:504:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadOpenAddedConnections;
          ^
net.h:505:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadOpenConnections;
          ^
net.h:506:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadMnbRequestConnections;
          ^
net.h:507:10: error: ‘thread’ in namespace ‘std’ does not name a type
     std::thread threadMessageHandler;
          ^
Makefile:5583: recipe for target 'libbitcoin_server_a-alert.o' failed
make[2]: *** [libbitcoin_server_a-alert.o] Error 1
make[2]: Leaving directory '/usr/src/idapay-refresh/src'
Makefile:9444: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/usr/src/idapay-refresh/src'
Makefile:657: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1
root@doom-virtual-machine:/usr/src/idapay-refresh#