[Mesa-dev] c99 vs v90

[Jose Fonseca]

On 04/08/16 11:25, Enrico Weigelt, metux IT consult wrote:
> On 04.08.2016 11:38, Jose Fonseca wrote:
>
>> __FUNCTION__ has been around for a very long time (before 1999), so it's
>> no surprise that MSVC has it.  But not implementing __func__ does seem a
>> oversight.  I believe they fixed it on MSVC 2015.
>
> hmm, okay. as long as we're supporting msvc'03, I'd suggest moving
> everything to __FUNCTION__, which seems to be the most portable
> one right now.
>
> When, one day, we move up to msvc'15, we can reconsider moving to
> __func__.

As I said,

   #define __func__ __FUNCTION__

neatly solves the problem.

>> To be clear, GNU C++ is the non-standard one here.  MSVC is following
>> the spec.  It's just a ptty that the C and C++ standard bodies don't
>> strive for consistency.
>
> Now I'm getting confused ... C++ standard has __func__, but C doesnt ?

No.  It's nothing to do with __func__.  C++ lacks C99 things like 
structure initializers.

>
>>> by the way: what's the exact reason for using msvc instead of gcc on
>>> win32 ?
>>
>> GCC on Win32 (MinGW) is not reliable (lots of known bugs.)  But above
>> all, it's impossible to debug Mingw executables on Windows: one has to
>> use GDB to debug Mingw DLLs/EXEs because Microsft debuggers don't
>> understand DWARF debug info, and one has to use Microsof debugger to
>> debug Microsoft DLLs/EXEs.  So it's impossible to debug an app that uses
>> both, which is always the case if the OpenGL driver is built with GCC.
>
> hmm, sure that this is still the case ?  (I knowledge on win32
> development quite limited - last time I actively did that must be
> decades ago ...)

I'm definitely sure.  I know there are projects out there hapilly using 
MinGW.  And we use MinGW for development too.  But it's not production 
ready.

>> But Microsoft has been working on a Clang/LLVM frontend for their
>> compiler, capable of genering debug info on MS format.  So I have hopes
>> we could one day switch to it.  It still in its early infancy though.
>
> hmm, what about building w/ clang anyways ?

No idea what you're asking.

Anyway, I think satisfied your curiosity and provided enough feedback. 
You'll just gonna have to figure the rest yourself.

>
>>> can I also deploy it to some VM there and log in via VNC ?
>>
>> No, not that I know of.
>
> hmm, so I can't actually test the win32 builds :(


Just push your experiments into a branch in github, and Appveyor will 
test it.



Jose