gnuplot 6.0.1 warning: Reading from '-' inside a multiplot not supported; use a datablock instead

[daljit46]

In Gnuplot 6.0.1, the following change was introduced:

CHANGE Use of data source '-' inside a multiplot is an error; use a local datablock instead

This causes an excessive amount of warnings to be output to the console:

warning: Reading from '-' inside a multiplot not supported; use a datablock instead

I can easily reproduce this with the line plot 1 example on MacOS with gnuplot 6.0.1 installed via brew.

[Haron123]

Yeah i got the same issue, the amount of warnings printed is quite annoying

[SeverinDenisenko]

On my 1024x1024 image plot it logs over 30000 warnings per second, rendering application completely unusable.

For a workaround I inserted run_command("unset warnings"); in some place in code.

This is obviously not a fix and I don't know what I am doing. But this worked.