[Buildroot] [Bug 15820] make linux-menuconfig does not modify correct .config file when LINUX_KERNEL_CUSTOM_CONFIG_FILE set

[bugzilla@busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=15820

Yann E. MORIN <yann.morin.1998@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED
                 CC|                            |yann.morin.1998@free.fr

--- Comment #1 from Yann E. MORIN <yann.morin.1998@free.fr> ---
Garyl, All,

Thanks for your report.

> Correct me if I'm wrong, but setting BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
> shouldn't buildroot make linux-menuconfig modify the one pointed to by
> this variable?

No, BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE is used as the "source" for the
configuration, it is not meant to be the "working copy", so the behaviour
you report is the expected one.

> So far, I've had to run make linux-menuconfig, then manually copy the
> output/target/linux-custom/.config to my actual linux source directory
> in order to preserve the changes.

You want to run:  make linux-update-defconfig   (or: linux-update-config)
See help, with:   make help

Regards,
Yann E. MORIN.

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