Hey there,
So just as an example:
`// Copyright Epic Games, Inc. All Rights Reserved.
using UnrealBuildTool;
using System.Collections.Generic;
using System;
public class BuildPipelineHarnessTarget : TargetRules
{
public BuildPipelineHarnessTarget(TargetInfo Target) : base(Target)
{
Type = TargetType.Game;
bOverrideBuildEnvironment = true;
CppStandard = CppStandardVersion.Cpp20;
AdditionalCompilerArguments += “/Zc:char8_t-”;
ExtraModuleNames.Add(“BuildPipelineHarness”);
bWarnAboutMonolithicHeadersIncluded = true;
}
}`Will yield an RSP of:
"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Source/SecondaryModule/SecondaryModule.cpp" @"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.Shared.rsp" /FI"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/Definitions.h" /Fo"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.obj" /experimental:log "Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.sarif" /sourceDependencies "Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.dep.json" /d2ssa-cfg-question- /Zc:inline /nologo /Oi /FC /diagnostics:caret /c /Gw /Gy /utf-8 /wd4819 /DSAL_NO_ATTRIBUTE_DECLARATIONS=1 /permissive- /Zc:strictStrings- /Zc:__cplusplus /D_CRT_STDIO_LEGACY_WIDE_SPECIFIERS=1 /D_SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS=1 /D_DISABLE_EXTENDED_ALIGNED_STORAGE /Ob2 /d2ExtendedWarningInfo /Ox /Ot /GF /errorReport:prompt /D_HAS_EXCEPTIONS=0 /DPLATFORM_EXCEPTIONS_DISABLED=1 /Z7 /MD /bigobj /fp:fast /Zo /Zp8 /W4 /wd4244 /wd4838 /TP /GR- /std:c++20 /Zc:preprocessor /wd5054 /Zc:char8_t-Any the following will generate the ordered list:
`// Copyright Epic Games, Inc. All Rights Reserved.
using UnrealBuildTool;
using System.Collections.Generic;
using System;
public class BuildPipelineHarnessTarget : TargetRules
{
public BuildPipelineHarnessTarget(TargetInfo Target) : base(Target)
{
Type = TargetType.Game;
bOverrideBuildEnvironment = true;
CppStandard = CppStandardVersion.Cpp20;
AdditionalCompilerArguments += “/std:c++20 /Zc:char8_t-”;
ExtraModuleNames.Add(“BuildPipelineHarness”);
bWarnAboutMonolithicHeadersIncluded = true;
}
}``“Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Source/SecondaryModule/SecondaryModule.cpp”
@“Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.Shared.rsp”
/FI"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/Definitions.h"
/Fo"Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.obj"
/experimental:log “Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.sarif”
/sourceDependencies “Z:/EngineSyncRoot//Sandbox/DevRel/DevTools/Intermediate/Build/Win64/x64/BuildPipelineHarness/Development/SecondaryModule/SecondaryModule.cpp.dep.json”
/d2ssa-cfg-question-
/Zc:inline
/nologo
/Oi
/FC
/diagnostics:caret
/c
/Gw
/Gy
/utf-8
/wd4819
/DSAL_NO_ATTRIBUTE_DECLARATIONS=1
/permissive-
/Zc:strictStrings-
/Zc:__cplusplus
/D_CRT_STDIO_LEGACY_WIDE_SPECIFIERS=1
/D_SILENCE_STDEXT_HASH_DEPRECATION_WARNINGS=1
/D_DISABLE_EXTENDED_ALIGNED_STORAGE
/Ob2
/d2ExtendedWarningInfo
/Ox
/Ot
/GF
/errorReport:prompt
/D_HAS_EXCEPTIONS=0
/DPLATFORM_EXCEPTIONS_DISABLED=1
/Z7
/MD
/bigobj
/fp:fast
/Zo
/Zp8
/W4
/wd4244
/wd4838
/TP
/GR-
/std:c++20
/Zc:preprocessor
/wd5054
/std:c++20 /Zc:char8_t-`This is on a vanilla engine sync of 5.6. Are there any other divergences in UBT on your end (Including the VCToolChain.cs - even in the other ticket the need for adding the Cpp20 is suspect; you should be specifying buildSettings v5 - the engine is c++ 20 compliant)? In your scenario I’d be trying to remove as many Target rules property modifications as I possibly could at the moment.
Edit
Also, I’ve tested this with the Plugin and it appears as though the AdditionalCompileArugments has also cascaded to the *.rsp files of that module as well.
So compile errors not-withstanding, it’s still unclear to me why your Target setup is not propagating the compile arguments to the RSP files.
Julian