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Date: Mon, 29 Apr 2013 23:28:18 +0200
From: Dániel Bali <>
Subject: Re: GPU support under Windows


I managed to get it compile again. These are the plugins that I had to
install for cygwin:

(libgcc1) -- not sure this is needed

Without clang it gave me errors, but after installing it it compiles just
fine. I also get the SIPdump.o error with the opencl version.


2013/4/29 Sayantan Datta <>

> Hi Daniel,
> On Mon, Apr 29, 2013 at 7:32 PM, Dániel Bali <>wrote:
>> Hello!
>> I didn't uncomment the OMPFLAGS line. I tried uncommenting it with
>> -fopenmp and then with -fopenmp -msse2, but non of them worked.
>> Oh and by the way this isn't just the OpenCL version that won't compile.
>> The win32-cygwin-x86-sse2 version doesn't compile either.
>> I have a feeling that I'm missing a library from my Cygwin that I had on
>> my previous installation. I saved a list of libraries that my previous
>> installation had. I will try to go through these now.
>> Thanks,
>> Daniel
> I compiled the win32-cygwin-x86-sse2 with -fopenmp flag set. It had one
> error at the end but all the executables were produced.
> Makefile:2243: recipe for target `SIPdump.o' failed
> I also ran a test:
> Sayantan@...antan-PC ~/JtR2/run
> $ ./john -te -fo=bf
> Benchmarking: OpenBSD Blowfish (x32) [32/32 X2]... (4xOMP) DONE
> Raw:    2845 c/s real, 930 c/s virtual
> This is far worse than linux. On alinux system I can get around 3400 c/s.
> Regards,
> Sayantan

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