LinuxCNC on Debian 10 Buster quick and easy install

Mike wrote:

$ linuxcnc / debian / => ./configure uspace => cd ..
$ linuxcnc / => dpkg-checkbuilddeps => sudo apt-get install ..... until you are done.
$ cd src / => ./autogen.sh => ./configure => make -j2 (j2 = dual processor speed)
$ sudo make setuid

You only need to do the first two lines once to find missing dependencies. From then on only do the seconf two lines but you need ./configure --with-realtime=uspace on this line:
$ cd src / => ./autogen.sh => ./configure => make -j2 (j2 = dual processor speed)
so it would be:
$ cd src / => ./autogen.sh => ./configure --with-realtime=uspace => make -j2 (j2 = dual processor speed)

change the line from "./configure" to "./configure --with-realtime = uspace" as you mentioned and it compiles fine but when I do make it shows me the same error:

Makefile: 82: *** Makefile.inc must specify RTPREFIX and other variables.

You cannot have spaces in that option, it must be ./configure --with-realtime=uspace. The only space is between the 'e' and the'-'

Yes, I did it before, no more with the space between the 'e' and the '-' en './configure --with-realtime = uspace "and if you compile the command correctly, but when I do make I get the same as:

Makefile: 82: *** Makefile. inc must specify RTPREFIX and other variables.

Whoever did it first:
. / configure
And not
./configure --with-realtime = uspace

It will have something to do, that when I put make I keep getting the error?

You cannot have a space either side of the = sign

Hahaha Phil you beat me to it.

If I am putting it without the spaces exactly like this

./configure --with-realtime=uspace

But the make still doesn't work

OK.

Clone Linuxcnc in to a completely new and separate directory, and checkout the branch you wish to build. We'll going to call it new-linuxcnc-dev. I have no idea what has happened, but lets start from scratch.
If that doesn't work you will have to supply more info about your system. ie what kernel are you using, I'm assuming you are using Buster. And can you also copy all text from the screen after you start make up to the point it fails.

uname -a:
Linux user 4.19.0-11-rt-amd64 # 1 SMP PREEMPT RT Debian 4.19.146-1 (2020-09-17) x86_64 GNU / Linux

distro:
Ubuntu-Buster

Linuxcnc:
2.8

I'm downloading branch 2.8 in zip format, from here:

github.com/LinuxCNC/linuxcnc/tree/2.8

Since if I clone it from github by DEFAULT this is the master branch and I don't know how to make it change version:

github.com/LinuxCNC/linuxcnc.git

Change into the directory you have cloned into and