Issue with make clean && make

[ljedamus]

Hi!

I think I found a bug in gnu make.

When I do a "% make clean && make" I get errors which don't occur when I do a 
"% make clean; make".

I once got a error message saying something like "make internal: got 5 jobs, 
but only 4 are allowed", but I cannot reproduce that error message again.

You have to set some environment variables to reproduce the result:
export MAKEFLAGS="-j 4 -l 2.5"
export machtype="Linux" (or "MacOS" or "Arm". These three values are 
recognised.)
export DEBUG="true"

The error does not occur, if I unset MAKEFLAGS. Then the result of "% make 
clean && make" is the same as "% make clean; make".

The code can be found on GitHub:
https://github.com/jedamus/split

Please take a look at my Makefile, as it is rather complex.

If you have any questions, email them to me.

Greetings
Leander Jedamus