Requires Visual Studio 2019 15.8 Preview 3, and targets to specify bEnableCppModules = true. Unsupported on other compilers.
Notes:
- Module interfaces need to be placed in .IXX files.
- Module/module dependencies are determined by a post-makefile/pre-build scan of all module interfaces using the compiler, and cause additional prerequisites to be inserted into the dependency graph before execution.
- Available module IFC search paths use normal UE module dependency rules.
- Header units are not currently supported.
- Regular C++ files cannot currently implement functions defined in module interfaces, due to the macros force included by UBT. These macros need to be placed in the global module fragment, but declaring a global module fragment must be done from the translation unit being compiled (making force-included headers invalid).
#rb none
[CL 14354539 by Ben Marsh in ue5-main branch]
- UnsafeTypeCastWarningLevel can be set to WarningLevel.Warning or WarningLevel.Error in ModuleName.Build.cs (off by default)
- Currently only supported on MS compilers (Clang ignores the setting for now)
#jira UE-86949
#rb ben.marsh
#ROBOMERGE-SOURCE: CL 11050203 via CL 11050250 via CL 11050262
#ROBOMERGE-BOT: (v637-11041722)
[CL 11050266 by michael noland in Main branch]
Add SSE and AVX defines to allow specifying availability on PC, MAC, and Linux.
SSE and AVX defines have ALWAYS_HAS and MAYBE_HAS variants to distinguish between available to compile and available to run without the need to check cpuid.
Add templated base classes TUnrealPlatformMathSSEBase and TUnrealPlatformMathSSE4Base to remove the boilerplate overrides added by each of the platformmaths that use the sse overrides.
#rb Steve.Robb
#rn Minor
[CL 10942197 by Matt Peters in Dev-Core branch]
#rb Ben.Marsh
#ROBOMERGE-OWNER: michael.lentine
#ROBOMERGE-AUTHOR: michael.lentine
#ROBOMERGE-SOURCE: CL 10727300 via CL 10727303 via CL 10727314 via CL 10727316
#ROBOMERGE-BOT: (v610-10636431)
[CL 10727317 by michael lentine in Main branch]
The engine will always be built with it as an error.
#rb none
[FYI] Marc.Audy
#jira none
#ROBOMERGE-SOURCE: CL 9839163 in //UE4/Release-4.24/...
#ROBOMERGE-BOT: RELEASE (Release-4.24 -> Main) (v546-9757112)
[CL 9839167 by ben marsh in Main branch]
Thus we renamed bFasterWithoutUnity to bUseUnity (note the inversion of the statement) which is what you should use if a module does not support building in Unity mode.
#jira UE-73054
#rb ben.marsh
[CL 7099374 by Joakim Lindqvist in Dev-Build branch]
- This allows for Confidential platforms to exist outside of the engine, and insert themselves in as needed
- Directory structure is, where .... mirrors the directory structure for Engine and projects
- /Platforms/XXX/....
- Moving to more data driven approach for ShaderPlatforms and PlatformInfo, where they can be read from DataDrivenPlatformInfo.ini files that live in the platform config folders
- Removed platform mentions from UBT, by way of changing some enums to partial classes with static members (see UnrealTargetPlatform)
- Various other UBT/UAT modifications to allow for looking in other locations for files
- THIS IS NOT A COMPLETE AND FINAL SOLUTION. WE WILL CONTINUE WORK IN DEV-BUILD BEFORE ITS READY FOR PRIMETIME
#rb ben.marsh
[CL 6271418 by Josh Adams in Dev-Build branch]
* A standalone Win32 application called cl-filter is used to parse output from running the Visual Studio compiler with the /showIncludes option, and generate a dependency list similar to Clang.
* Actions which produce an external dependency list declare it explicitly. If the dependency list is missing, or any of the contents are out of date, the action is rebuilt.
* The contents of dependency lists are cached by the CppDependencyCache class for future iterations.
#rb none
[CL 4665060 by Ben Marsh in Dev-Build branch]
