diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/CMakeLists.txt wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/CMakeLists.txt
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/CMakeLists.txt	2021-03-08 00:31:20.959042010 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/CMakeLists.txt	2021-03-08 01:17:40.919887572 +0100
@@ -5,7 +5,6 @@
 
 option(WERROR "" OFF)
 
-add_subdirectory(liburing)
 
 set(WCP_COMPILER_FLAGS -Wall -pedantic -Wextra)
 if (WERROR)
@@ -34,7 +33,7 @@
     src/ETACalculator.cpp)
 
 find_package(Threads)
-target_link_libraries(wcp_lib Uring ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries(wcp_lib uring ${CMAKE_THREAD_LIBS_INIT})
 target_compile_options(wcp_lib PRIVATE ${WCP_COMPILER_FLAGS})
 
 add_executable(wcp src/main.cpp)
@@ -42,4 +41,4 @@
 
 add_executable(tests src/tests.cpp src/acutest.h)
 target_link_libraries(tests wcp_lib)
-target_compile_options(tests PRIVATE ${WCP_COMPILER_FLAGS})
\ No newline at end of file
+target_compile_options(tests PRIVATE ${WCP_COMPILER_FLAGS})
Only in wcp-45ab7b81f2bc11f5f577978a974bb99838726d67: build
Only in wcp-45ab7b81f2bc11f5f577978a974bb99838726d67: foo
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/CopyQueue.cpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/CopyQueue.cpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/CopyQueue.cpp	2021-03-08 00:31:20.969042225 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/CopyQueue.cpp	2021-03-08 02:07:23.263887052 +0100
@@ -3,6 +3,7 @@
 #include <fcntl.h>
 #include <dirent.h>
 #include <unistd.h>
+#include <linux/stat.h>
 #include <cmath>
 #include <cstring>
 #include "CopyQueue.hpp"
@@ -73,8 +74,8 @@
 
     while (true)
     {
-        if constexpr (Config::VALGRIND_MODE)
-            pthread_yield();
+//        if constexpr (Config::VALGRIND_MODE)
+//            pthread_yield();
 
         // SUBMIT
         int32_t runnersAdded = 0;
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/CopyQueue.hpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/CopyQueue.hpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/CopyQueue.hpp	2021-03-08 00:31:20.969042225 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/CopyQueue.hpp	2021-03-08 00:34:28.293060034 +0100
@@ -65,7 +65,7 @@
     io_uring ring = {};
 
     std::deque<CopyRunner*> copiesPendingStart;
-    pthread_mutex_t copiesPendingStartMutex = PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
+    pthread_mutex_t copiesPendingStartMutex = PTHREAD_MUTEX_INITIALIZER;
     std::atomic_uint32_t copiesPendingStartCount = 0;
 
     std::atomic_uint32_t keepAliveCount = 0;
@@ -79,7 +79,7 @@
     ETACalculator etaCalulator;
 
     std::vector<std::string> errorMessages;
-    pthread_mutex_t errorMessagesMutex = PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
+    pthread_mutex_t errorMessagesMutex = PTHREAD_MUTEX_INITIALIZER;
     std::atomic_bool errored = false;
 
     static constexpr uint64_t RESERVED_FD_COUNT = 2; // Reserved one for the ring itself, and one for directory iteration
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/QueueFileDescriptor.cpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/QueueFileDescriptor.cpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/QueueFileDescriptor.cpp	2021-03-08 00:31:20.979042439 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/QueueFileDescriptor.cpp	2021-03-08 00:54:01.888938294 +0100
@@ -27,8 +27,8 @@
     {
         while(!this->reserveFileDescriptor(OpenPriority::High))
         {
-            if constexpr (Config::VALGRIND_MODE)
-                pthread_yield();
+//            if constexpr (Config::VALGRIND_MODE)
+//                pthread_yield();
         }
 
         return this->doOpen();
@@ -70,4 +70,4 @@
 
     this->fd = std::get<int>(result);
     return Success();
-}
\ No newline at end of file
+}
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/Util.cpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/Util.cpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/Util.cpp	2021-03-08 00:31:20.979042439 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/Util.cpp	2021-03-08 02:01:31.976352451 +0100
@@ -2,9 +2,11 @@
 #include "Assert.hpp"
 #include <fcntl.h>
 #include <sys/stat.h>
+#include <linux/stat.h>
 #include <cstring>
 #include <unistd.h>
 #include <dirent.h>
+#include <bits/syscall.h>
 
 void recursiveMkdir(std::string& path)
 {
@@ -84,7 +86,7 @@
 {
     int err = retrySyscall([&]()
     {
-        statx(fd, path.c_str(), flags, mask, &buf);
+        syscall(SYS_statx, fd, path.c_str(), flags, mask, &buf);
     });
 
     if (err != 0)
@@ -98,11 +100,11 @@
     ssize_t retval = 0;
     int err = retrySyscall([&]()
     {
-        retval = getdents64(dfd, buffer, bufferSize);
+        retval = syscall(SYS_getdents64, dfd, buffer, bufferSize);
     });
 
     if (err != 0)
         return Error("Couldn't open directory \"" + path + "\": \"" + strerror(err) + "\"");
 
     return size_t(retval);
-}
\ No newline at end of file
+}
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/Util.hpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/Util.hpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/Util.hpp	2021-03-08 00:31:20.979042439 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/Util.hpp	2021-03-08 01:44:49.324847050 +0100
@@ -1,4 +1,6 @@
 #pragma once
+#include <sys/stat.h>
+#include <linux/stat.h>
 #include <string>
 #include <memory>
 #include <variant>
@@ -19,8 +21,8 @@
     explicit Error(std::string&& message): humanFriendlyErrorMessage(std::make_unique<std::string>(std::move(message))) {}
 };
 
-using Result = std::variant<Error, nullptr_t>;
-static constexpr nullptr_t Success() { return nullptr; }
+using Result = std::variant<Error, std::nullptr_t>;
+static constexpr std::nullptr_t Success() { return nullptr; }
 
 using OpenResult = std::variant<Error, int>;
 OpenResult myOpen(const std::string& path, int oflag, mode_t mode);
@@ -55,4 +57,4 @@
 using GetDentsResult = std::variant<Error, size_t>;
 [[nodiscard]] GetDentsResult myGetDents(int dfd, const std::string& path, void* buffer, size_t bufferSize);
 
-[[nodiscard]] Result myStatx(int fd, const std::string& path, int flags, unsigned int mask, struct statx& buf);
\ No newline at end of file
+[[nodiscard]] Result myStatx(int fd, const std::string& path, int flags, unsigned int mask, struct statx& buf);
diff -ur wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/wcpMain.cpp wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/wcpMain.cpp
--- wcp-45ab7b81f2bc11f5f577978a974bb99838726d67.orig/src/wcpMain.cpp	2021-03-08 00:31:20.979042439 +0100
+++ wcp-45ab7b81f2bc11f5f577978a974bb99838726d67/src/wcpMain.cpp	2021-03-08 01:18:28.830915194 +0100
@@ -2,6 +2,7 @@
 #include <sys/resource.h>
 #include <fcntl.h>
 #include <unistd.h>
+#include <bits/syscall.h>
 #include <cstring>
 #include <string>
 #include <filesystem>
@@ -48,7 +49,7 @@
     {
         destStatResult = retrySyscall([&]()
         {
-            statx(AT_FDCWD, dest.c_str(), 0, STATX_BASIC_STATS, &destStat);
+            syscall(SYS_statx, AT_FDCWD, dest.c_str(), 0, STATX_BASIC_STATS, &destStat);
         });
 
         if (destStatResult != 0 && destStatResult != ENOENT)
@@ -95,4 +96,4 @@
     bool success = copyQueue.join(completionAction);
 
     return int(!success);
-}
\ No newline at end of file
+}