when I ran scons this is the output i got

scons: done reading SConscript files.
scons: Building targets ...
g++ -o build\src\client\Client.o -c -std=c++11 -U__STRICT_ANSI__ -Wno-invalid-of
fsetof -msse -msse2 -DSDL_INC -DLUA_R_INCL -DWIN -D_WIN32_WINNT=0x0501 -D_USING_
V110_SDK71_ -DX86 -DX86_SSE -DX86_SSE2 -DGRAVFFT -DLUACONSOLE -Ibuild\src -Isrc
-Ibuild\data -Idata -Ibuild\generated -Igenerated src\client\Client.cpp
=====
b'src\\client\\Client.cpp:19: warning: "NOMINMAX" redefined\n #define NOMINMAX\n
\nIn file included from c:\\mingw\\lib\\gcc\\mingw32\\8.2.0\\include\\c++\\ming
w32\\bits\\c++config.h:508,\n from c:\\mingw\\lib\\gcc\\mingw32\
\8.2.0\\include\\c++\\bits\\stl_algobase.h:59,\n from c:\\mingw\
\lib\\gcc\\mingw32\\8.2.0\\include\\c++\\vector:60,\n from src\\
client\\Client.h:4,\n from src\\client\\Client.cpp:1:\nc:\\mingw
\\lib\\gcc\\mingw32\\8.2.0\\include\\c++\\mingw32\\bits\\os_defines.h:45: note:
this is the location of the previous definition\n #define NOMINMAX 1\n \nIn file
included from src\\client\\Client.cpp:46:\nsrc/client/http/Request.h:39:8: erro
r: \'mutex\' in namespace \'std\' does not name a type\n std::mutex rm_mutex;\
n ^~~~~\nsrc/client/http/Request.h:39:3: note: \'std::mutex\' is defined
in header \'<mutex>\'; did you forget to \'#include <mutex>\'?\nsrc/client/http/
Request.h:9:1:\n+#include <mutex>\n #include "common/String.h"\nsrc/client/http/
Request.h:39:3:\n std::mutex rm_mutex;\n ^~~\nsrc/client/http/Request.h:53:8
: error: \'condition_variable\' in namespace \'std\' does not name a type\n st
d::condition_variable done_cv;\n ^~~~~~~~~~~~~~~~~~\nsrc/client/http/Requ
est.h:53:3: note: \'std::condition_variable\' is defined in header \'<condition_
variable>\'; did you forget to \'#include <condition_variable>\'?\nsrc/client/ht
tp/Request.h:9:1:\n+#include <condition_variable>\n #include "common/String.h"\n
src/client/http/Request.h:53:3:\n std::condition_variable done_cv;\n ^~~\nIn
file included from src\\client\\Client.cpp:47:\nsrc/client/http/RequestManager.
h:18:8: error: \'thread\' in namespace \'std\' does not name a type\n std::thr
ead worker_thread;\n ^~~~~~\nsrc/client/http/RequestManager.h:18:3: note:
\'std::thread\' is defined in header \'<thread>\'; did you forget to \'#include
<thread>\'?\nsrc/client/http/RequestManager.h:9:1:\n+#include <thread>\n #inclu
de <curl/curl.h>\nsrc/client/http/RequestManager.h:18:3:\n std::thread worker_
thread;\n ^~~\nsrc/client/http/RequestManager.h:27:8: error: \'mutex\' in name
space \'std\' does not name a type\n std::mutex rt_mutex;\n ^~~~~\nsrc/
client/http/RequestManager.h:27:3: note: \'std::mutex\' is defined in header \'<
mutex>\'; did you forget to \'#include <mutex>\'?\nsrc/client/http/RequestManage
r.h:9:1:\n+#include <mutex>\n #include <curl/curl.h>\nsrc/client/http/RequestMan
ager.h:27:3:\n std::mutex rt_mutex;\n ^~~\nsrc/client/http/RequestManager.h:
28:8: error: \'condition_variable\' in namespace \'std\' does not name a type\n
std::condition_variable rt_cv;\n ^~~~~~~~~~~~~~~~~~\nsrc/client/http/Re
questManager.h:28:3: note: \'std::condition_variable\' is defined in header \'<c
ondition_variable>\'; did you forget to \'#include <condition_variable>\'?\nsrc/
client/http/RequestManager.h:9:1:\n+#include <condition_variable>\n #include <cu
rl/curl.h>\nsrc/client/http/RequestManager.h:28:3:\n std::condition_variable r
t_cv;\n ^~~\n'
=====
scons: *** [build\src\client\Client.o] Error 1
scons: building terminated because of errors.
strip: 'build/Powder.exe': No such file