Configure command ends with 'ERROR: Unknown command line option ...'

[dwolf]

If I run the configure command without any options it works fine. But if I try to run it with any option it ends with the line "ERROR: Unknown command line option (...)".

I downloaded the 5.15.x source packages from https://www.qt.io/offline-installers
and copied it to ~/Qt/5.15.2/Src/

Now I try to run the command in the following way:

./configure -prefix /opt/qt_5

This command ends like this:

+ cd qtbase
+ /home/amt/Qt/5.15.2/Src/qtbase/configure -top-level -prefix /opt/qt_5/
Creating qmake...
...............................................................................................Done.
Info: creating super cache file /home/amt/Qt/5.15.2/Src/.qmake.super
Info: creating cache file /home/amt/Qt/5.15.2/Src/.qmake.cache
ERROR: Unknown command line option '-prefix'.

'prefix' is just an example. I've tried several other options and they all show the same behavior.

What I'm doing wrong?

My main goal is cross compile to a 'arm i.MX8M'

[SGaist]

Hi and welcome to devnet,

Might be a silly question but did you download the zip or tar.xz archive ?