Hi, I've experienced similar problem in past and the solution was to put the MinGW directory in the path *before* the standard Windows directories. The reason was that one command already exists in the Windows path but it was not the good one, but I don't remember which one it was.
I recommend to always put mingw directories in the path before window's directory because it is better to let the shell find first the unix-like mingw commands instead of the windows' native one. I hope that helps. Francesco _______________________________________________ Help-gsl mailing list Help-gsl@gnu.org https://lists.gnu.org/mailman/listinfo/help-gsl