2012/5/14 Antony Riakiotakis <[email protected]>
> Hi,
>
> First, good news:
> MinGW-w64 support for blender is getting more complete by the day, to
> the point where users download and test (and may even prefer, due to
> the speed increase ;) ) mingw-w64 builds. There have been a few
> compiler-related issues but more like gcc-related than MinGW-64
> related I think (We had bugs creeping in due to aggressive
> optimization by -O3 and openmp by -fopenmp).
>
Great to hear! I noticed the post about the dramatic performance difference
yesterday.
I decided to build blender from source, which worked using the instructions
on the wiki. I built with WITH_OPENMP=ON, WITH_MINGW64=ON, and
CMAKE_BUILD_TYPE=Release, and default options for the rest.
The blender executable I built (using my personal GCC 4.7.0 releas build)
crashes on exit (making every test fail), but otherwise it seems to work
fine.
This is the output I get:
found bundled python: M:\Development\x64\blender\bin\2.63\python
Blender quit
Assertion failed!
Program: M:\Development\x64\blender\bin\blender.exe
File: ../../ilmbase-1.0.1/IlmThread/IlmThreadPosix.cpp, Line 84
Expression: error == 0
This application has requested the Runtime to terminate it in an unusual
way.
Please contact the application's support team for more information.
I suppose this is either harmless, or a genuine bug. Note I haven't tried
anything other than starting blender and closing it again. I wanted to run
the tests first, but this is kind of show-stopping :)
>
> So! Next step is setting a development environment. I was an eclipse
> user before I discovered QtCreator but, unfortunately, while I have
> managed to make eclipse sort-of work(official gdb works but jumps
> around a lot in the source), I still haven't managed to get the
> QtCreator one work. I have downloaded python 2.7 and I am now using
> raylinn's gdb build (Since we also use his builds for blender). I have
> tweaked the options to point to the MinGW-w64 debugger instead of the
> QtCreator installed one. Looks like the debugger does fire up but I am
> getting some "Can't find xx.h" messages and then the debugger
> terminates. Also Eclipse crashes whenever it hits a breakpoint. Any
> headers to get a more or less working dev environment would be highly
> appreciated!
>
>
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