[Bf-committers] Change of MinGW64 compiler

[Constantin Rahn]

Hi,

the current build bot mingw win64 r48748 crashes on startup. Confirmed 
by JesterKing on IRC.
"jesterKing: 48700 already crashes on startup. I'm guessing it has to do 
with the dlls that are now used in mingw64 builds (gomp, gcc_s_sjlj, 
winpthread, stdc++-6)"

Could this be a problem with your latest changes?
Who could fix this? Blender Developers (maybe you) or is it a problem on 
the mingw side?

Happy blending
Conz

Am 05.07.2012 03:39, schrieb Antony Riakiotakis:
> Hi,
>
> I am preparing a major update of libraries and a change of the supported
> compiler to resolve the crashes that occur with subsurf/multires when
> compiling with openmp. This one will be used:
>
> http://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/rubenvb/release/x86_64-w64-mingw32-gcc-4.7.1-release-win64_rubenvb.7z/download
>
> Ruben's builds are the closest thing to "release" builds. Unfortunately it
> requires SSE 3 (pentium 4 prescott+) to run but, given that blender may
> take easily 2GB to link (== a recent pc) and that prescott is about 8 years
> old I think it's a safe change.
> This compiler should already work and subsurf rendering will not crash if
> compiled with openmp, however there may be some crashes on exit with
> openexr. I have already compiled openexr with this build and it works OK
> here. I will also update libpng and openimageio using the recompiled
> openexr.
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