[Mesa-dev] [PATCH 1/3] util: Fix SHA1 implementation on big endian

[Roland Scheidegger]

Am 26.11.2017 um 01:46 schrieb Matt Turner:
>>> Sigh. Was supposed to be #warning. Strangely vim even syntax
>>> highlights #warn. Committed a brown bag fix.
>>
>> As Jon was commenting, #warning is neither portable to MSVC 😕
>>
>> AppVeyor error:
>> https://ci.appveyor.com/project/mesa3d/mesa/build/6251
> 
> Bizarre. I've never known about that MSVC annoyance. We even use
> #warning multiple other places in Gallium.
> 

I see some other places, but they all seem to be in places where windows
has special handling anyway (so, when there's special handling for
compilers or platforms, and then some maybe-not-really-safe default if
nothing was recognized).
I guess it may be a bit surprising #warning isn't a standard directive.
Acoording to wikipedia at least gnu, intel and ibm support it, whereas
with MSVC you need to use #pragma message instead...

Roland