Hi Malcolm. "make install" under Cygwin and W2000 on the nhc98 v 1.16 tarball gives: ..... ./UnboxedArray.z.a ./Warning.z.a Adjusting... hmakerc I/O error: action : openFile ReadMode on file: /c/DOCUME~1/mike/LOCALS~1/Temp\hmakeconfig.tmp gave : ENOENT (No such file or directory) ..... The file exists - I suspect that nhc98 is choking on the backslash: .... $ ls /c/DOCUME~1/mike/LOCALS~1/Temp\hmakeconfig.tmp /c/DOCUME~1/mike/LOCALS~1/Temphmakeconfig.tmp ... I haven't time to look further at this tonight I'm sorry - will try later in the week - any suggestions accepted gratefully as to where that DOS path separator is coming from (ie, which script do I need to look at, patch etc) to save debugging time. The compiler built (ie "configure" and "make") without troubles otherwise, and the partially installed system compiles source files perfectly well. However, "hmake" is missing as a result of the above problem. Cheers Mike Thomas.