io.c:mzd_from_png does not fopen the file as binary.....

[Former user]

...Which does make the subsequent read of the png header fail on Windows.

solution : fopen mode as "rb", it won't hurt Linux, but it will fix Windows.

[Martin Albrecht]

I fixed this in 037cc092b4ac. Thanks for the bug report. I was wondering though, does M4RI properly work on Windows? How's the peformance compared to POSIX systems? We have no one in our team who uses Windows in a non-trivial way, so if you could contribute any build system fixes etc. you have that'd be great. For example, do you do cache tuning on Windows?

[Former user]

As far as I can tell m4ri works as well on Windows as it does on Linux, however I am using Intels ICC instead of the VS compiler, and as far as performance is concerned I did not yet try any special optimizations.