make fails with error about mgnuplot



I just tried to build Maxima from current source code and it compiles
all the stuff in src just fine but in plotting it fails with this error:

    Makefile:281: warning: overriding commands for target `mgnuplot'
    Makefile:256: warning: ignoring old commands for target `mgnuplot'
    make[1]: *** No rule to make target `mgnuplot.', needed by `mgnuplot'.
    Stop.

Dunno what's going on. Can anyone else confirm it?

best

Robert Dodier