Hi, I have the following errors when trying to build Unreal 4.22.3 using clang 7.0.1:
Building UnrealHeaderTool...
Performing 30 actions (4 in parallel)
[2/30] Compile PCH.CoreUObject.h
[4/30] Compile SharedPCH.Core.h
[3/30] Compile BuildSettings.cpp
[1/30] Compile PCH.Core.h
[5/30] Link (ld) libUnrealHeaderTool-BuildSettings.so
/build/UnrealEngine-4.22.3-release/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Link-libUnrealHeaderTool-BuildSettings.so.link.sh: line 7: /build/UnrealEngine-4.22.3-release/Engine/Binaries/Linux/dump_syms: not found
[6/30] Compile Module.UnrealHeaderTool.cpp
[7/30] Compile Module.Json.cpp
[8/30] Compile Module.Core.10_of_10.cpp
[9/30] Compile Module.Core.8_of_10.cpp
In file included from /build/UnrealEngine-4.22.3-release/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Core/Module.Core.10_of_10.cpp:21:
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformMisc.cpp:327:3: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
write(STDOUT_FILENO, ExitMsg, sizeof(ExitMsg));
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformMisc.cpp:369:3: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
write(STDOUT_FILENO, ExitMsg, sizeof(ExitMsg));
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /build/UnrealEngine-4.22.3-release/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Core/Module.Core.10_of_10.cpp:23:
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformProcess.cpp:1448:2: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
chdir(TCHAR_TO_ANSI(FPlatformProcess::BaseDir()));
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /build/UnrealEngine-4.22.3-release/Engine/Intermediate/Build/Linux/B4D820EA/UnrealHeaderTool/Development/Core/Module.Core.10_of_10.cpp:24:
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformStackWalk.cpp:162:4: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
read(SymbolFileFD, Buffer, Size);
^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformStackWalk.cpp:424:6: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
write(STDOUT_FILENO, Message, FCStringAnsi::Strlen(Message));
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformStackWalk.cpp:425:6: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
write(STDOUT_FILENO, ModuleSymbolPath, FCStringAnsi::Strlen(ModuleSymbolPath));
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/build/UnrealEngine-4.22.3-release/Engine/Source/Runtime/Core/Private/Unix/UnixPlatformStackWalk.cpp:426:6: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
write(STDOUT_FILENO, "\"\n", 2);
^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
7 errors generated.
[10/30] Compile Module.Core.7_of_10.cpp
[11/30] Compile Module.Core.6_of_10.cpp
[12/30] Compile Module.Core.5_of_10.cpp
[13/30] Compile Module.Core.9_of_10.cpp
[14/30] Compile Module.Core.3_of_10.cpp
[15/30] Compile Module.Core.2_of_10.cpp
[16/30] Compile Module.Core.1_of_10.cpp
[17/30] Compile Module.Core.4_of_10.cpp
[18/30] Compile Module.Projects.cpp
[19/30] Compile Module.CoreUObject.4_of_6.cpp
[20/30] Compile Module.CoreUObject.6_of_6.cpp
[21/30] Compile Module.CoreUObject.1_of_6.cpp
[22/30] Compile Module.CoreUObject.2_of_6.cpp
[23/30] Compile Module.CoreUObject.3_of_6.cpp
[24/30] Compile Module.CoreUObject.5_of_6.cpp
make: *** [Makefile:212: CrashReportClient-Linux-Shipping] Error 5
Can anyone suggest a fix?