> - From the shell, what does 'octave-config -p BINDIR' say? (Maybe you
> must give the path to octave-config.)
PS C:\Octave\Octave-5.1.0.0\mingw64\bin> .\octave-config.exe -p BINDIR
C:\Octave\Octave-5.1.0.0\mingw64\bin
well, sure enough I do have octave-config hiding in there. once again, bit by the inane MS Windows search capability.
search for octave-config*: turns up octave-config.1 and octave-config.h
search for
octave-config.*: now also includes octave-config.exe
*head-desk*
in any case, matching Markus's output:
C:\Programs\Octave\octave-5.1.0-w64\mingw64\bin>octave-config -p BINDIR
C:\Programs\Octave\octave-5.1.0-w64\mingw64\bin