I tried compiling the 4.5 preview cloned from GitHub.
GenerateProjectFiles.sh ran fine (even though re-running causes it to download the 3 files again).
I am running make in the UnrealEngine folder and I get the following output:
...] In file included from Runtime/Core/Public/HAL/PlatformIncludes.h:20:0, from /home//Development/Cpp/UnrealEngine/Engine/Source/Runtime/Core/Public/Core.h:19, from /home//Development/Cpp/UnrealEngine/Engine/Intermediate/Build/Linux/x86_64-unknown-linux-gnu/UnrealHeaderTool/Development/Core/Module.Core.4_of_5.cpp:2: Runtime/Core/Public/GenericPlatform/GenericPlatformMath.h:537:60: error: redeclaration ‘static constexpr T FGenericPlatformMath::Abs(T) [with T = float]’ differs in ‘constexpr’ FORCEINLINE float FGenericPlatformMath::Abs( const float A ) ...]
I am curious if anyone has a solution or at least encountered the same problem.