Hi Alan and Jim I just tested the patch on my Centos machine and got the following build error
make[3]: *** No rule to make target `/usr/lib64/libltdl.so', needed by `src/libplplot.so.12.0.1'. Stop. make[2]: *** [src/CMakeFiles/plplot.dir/all] Error 2 make[1]: *** [utils/CMakeFiles/wxPLViewer.dir/rule] Error 2 make: *** [wxPLViewer] Error 2 I don't know if this is a show stopper? However, I have just been looking at random number generation code. A basic random number generator is only a handful of lines of code and it can be seeded from the system entropy using either rand_s on windows or /dev/random on Linux/mac. I have attached a patch. This works on Windows fine, but I can't test it on Linux until tomorrow morning. You can test it by applying it to the current master branch. Phil
wxRand.patch
Description: Binary data
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