[LLVMdev] Status of compiling on MSVC < 2012

[Nick Lewycky]

Zachary Turner wrote:
> As the title suggests, what is the status of compiling llvm on versions
> of MSVC less than 2012?  Not so much "Does it work?", but more like
> "Should any thought be given to whether or not something will break it?"

No. See 
http://llvm.org/docs/CodingStandards.html#supported-c-11-language-and-library-features 
where we state that the minimum versions are MSVC 2012, GCC 4.7 and 
Clang 3.1.

> Right now there are a bunch of warnings when compiling LLDB on Windows
> because it uses various symbols which have been defined since VS2012,
> but which are re-defined in llvm support header files.  In the process
> of addressing this, I noticed in include\llvm\Support\DataTypes.h.in
> that it redefines a bunch of other stuff as well
> from stdint.h and inttypes.h with a comment about how these definitions
> were only added in certain updates to VC++.  However, this was an update
> to MSVC 2010 if my memory serves me correctly, so if it's not necessary
> to support 2010, then I can clean up some of the stuff in this header at
> the same time that I'm fixing the warnings.

Cleaning up code sounds great!

Nick