[Buildroot] Buildroot roseapplepi_defconfig no longer builds

[Thomas Petazzoni]

Hello Peter,

The roseapplepi_defconfig no longer builds:

  https://gitlab.com/buildroot.org/buildroot/-/jobs/269139283

The build issue occurs when building the wonderful out of tree
display driver:

drivers/gpu/pvr/eurasia_km_linux/services4/srvkm/env/linux/osfunc.c: In function 'OSEventObjectCreateKM':
drivers/gpu/pvr/eurasia_km_linux/services4/srvkm/env/linux/osfunc.c:3051:13: error: 'strncpy' specified bound 50 equals destination size [-Werror=stringop-truncation]
             strncpy(psEventObject->szName, pszName, EVENTOBJNAME_MAXLENGTH);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

I guess this is caused by our update to gcc 8.x as the default compiler.

Could you have a look ?

Thanks!

Thomas Petazzoni
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com