- After discussion with Core/Platform teams, it was determined that these warnings [would] affect build failure rate too much.
- We do not want to suppress them altogether though and they are going to be fixed as time and resources permit.
#codereview Josh.Adams, Michael.Trepka, Chris.Babcock, Marcus.Wassmer, Ankit.Khare
[CL 2488268 by Dmitry Rekman in Main branch]
- -Wno-inconsistent-missing-override suppressed, pending discussion with the Core team.
#codereview Steve.Robb, Robert.Manuszewski, Josh.Adams
[CL 2487976 by Dmitry Rekman in Main branch]
- PR #551 contributed by amigo.
- Fixes a quite common case of a project with plugins being located in "Unreal Projects" directory.
- UE-4651
[CL 2343090 by Dmitry Rekman in Main branch]
- Removed old rpaths for libs which we now link statically.
- Added rpath useful for target platform modules and other fixes from PR #442.
[CL 2314947 by Dmitry Rekman in Main branch]
- clang 3.5.0 (and Ubuntu's 3.5-trunk) seems to miscompile PlatformerGame (bControlsLocked bitfield becomes true for some reason, doesn't happen with -O2 and -O0).
- fixes TTP #347022.
[CL 2312439 by Dmitry Rekman in Main branch]
- UBT was invoking non-existent compiler to determine its version.
- Happened during AutoSDK switch as well.
[CL 2295597 by Dmitry Rekman in Main branch]
- Temporarily suppressed a warning until we resolve if (!this) checks.
- Upped optimization from -O2 to -O3 (as was the case a year ago).
Note: 3.5.0 generates much more compact debug info, reducing development server binary size from 1GB to roughly 600 MB.
#codereview Bob.Tellez, Kellan.Carr
[CL 2288345 by Dmitry Rekman in Main branch]
UnrealBuildTool 'Makefiles' allow for very fast iterative builds.
- New BuildConfiguration.xml setting added: "bUseExperimentalFastBuildIteration" (disabled by default)
- Turning this on causes Unreal Build Tool to emit 'UBT Makefiles' for targets when they're built the first time.
- Subsequent builds will load these Makefiles and begin outdatedness checking and build invocation very quickly.
- The caveat is that if source files are added or removed to the project, UBT will need to gather information about those in order for your build to complete successfully.
- Currently, you must run the project file generator after adding/removing source files to tell UBT to re-gather this information.
- Events that can invalidate the 'UBT Makefile':
- Adding/removing .cpp files
- Adding/removing .h files with UObjects
- Adding new UObject types to a file that didn't previously have any
- Changing global build settings (most settings in this file qualify.)
- Changed code that affects how Unreal Header Tool works
- You can force regeneration of the 'UBT Makefile' by passing the '-Gather' argument, or simply regenerating project files
- New command-line parameters added:
- "-Gather": Tells UBT to always perform the gather step (slower but will catch project structural changes)
- "-NoGather": Disables the gather step, unless UBT detects that it must be done. This is the default when bUseExperimentalFastBuildIteration is enabled
- "-GatherOnly": Runs the gather step and saves a UBTMakefile, but doesn't build anything
- "-Assemble": Tells UBT to also assemble build products. This always defaults to enabled
- "-NoAssemble": Tells UBT to skip the assemble step, whether we gathered build products or not
- "-AssembleOnly": Tells UBT to only assemble build products and not to gather, unless UBT determines it must
Other changes:
- UBT now keeps track of which targets it was building in an intermediate file, to help it invalidate cached includes in subsequent runs when the targets are different
- C++ includes are now stored in a class separate from the C++ compile enviroment (for easier serialization)
- The method that UBT uses to find the CoreUObject module timestamp was rewritten
- Various '@todo ubtmake' comments added to tag possible remaining Makefile tasks
- The 'FileItem' class had some member variable comments and code cleaned up, while making it serializable
- Cleaned up the comments and member variables in the "Action" class, while making it serializable
- Some UBT classes are now "serializable". This is because we need to store the data in UBTMakefiles.
- Removed support for Actions to tinker with Stdout and Stderror (was not used for anything)
- Moved PrecompileHeaderEnvironment class to the UEBuildModule.cs source file
- Plugin intermediate include directories are now selected on demand rather than cached early
- Toolchain code for gathering prerequisite headers is now shared in a single function (AddPrerequisiteSourceFile)
- Removed Action.StatusDetailedDescription, was not used for anything
- Removed UEBuildConfiguration.bExcludePlugins, was not used for anything
- Removed ECompilationResult.FailedDueToHeaderChange, was not used for anything
[CL 2254472 by Mike Fricker in Main branch]
