[Buildroot] [Bug 15121] New: make nconfig failes with nvidia drivers and mesa3d selected

[Buildroot] [Bug 15121] New: make nconfig failes with nvidia drivers and mesa3d selected

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15121

            Bug ID: 15121
           Summary: make nconfig failes with nvidia drivers and mesa3d
                    selected
           Product: buildroot
           Version: 2022.08
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: Other
          Assignee: unassigned@buildroot.uclibc.org
          Reporter: ian_ormshaw@waters.com
                CC: buildroot@uclibc.org
  Target Milestone: ---

I am currently using 2022-11, but this has been a problem with earlier versions
too,

I'm trying to produce a system on which I can run opencl code on an nvidia
graphics card.  It would appear to me that both the nvidia drivers and mesa3d
are required to make this work.  nconfig allows me to selet both but then fails
on exit after the configuration is saved.

####### making buildroot-config Updating the default AMST buildroot
configuration
make[1]: Entering directory
'/home/ian/build/amst-hiwire-linux_5-provide-an-opencl-platform_x86_64/buildroot'
package/mesa3d-headers/mesa3d-headers.mk:10: *** mesa3d-headers enabled, but
mesa3d enabled too.  Stop.
make[1]: *** [Makefile:23: _all] Error 2
make[1]: Leaving directory
'/home/ian/build/amst-hiwire-linux_5-provide-an-opencl-platform_x86_64/buildroot'
make: *** [Makefile:630: buildroot-config] Error 2

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[Buildroot] [Bug 15121] make nconfig failes with nvidia drivers and mesa3d selected

[bugzilla]

https://bugs.busybox.net/show_bug.cgi?id=15121

Thomas Petazzoni <thomas.petazzoni@bootlin.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED

--- Comment #1 from Thomas Petazzoni <thomas.petazzoni@bootlin.com> ---
Thanks for your bug report, but there is no bug here.

Buildroot only allows one OpenGL provider to be selected. Indeed, if you have
multiple OpenGL providers, they will simply step on each other.

mesa3d-headers is a package that is selected by the nvidia drivers package, as
the nvidia drivers package does not provide the OpenGL headers.

mesa3d is another OpenGL implementation.

So having mesa3d and nvidia drivers enabled in the same configuration does not
make sense, and that's what the error message is telling you.

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