Arch Linux

Description:
Kernel 4.16.7-1 in testing is compiled with gcc 8.1, while gcc 8.1 is still in staging, which breaks nvidia-dkms 390.48-13 from testing.

Additional info:
* package version(s)
linux 4.16.7-1
gcc 7.3.1+20180406-1
nvidia-dkms 390.48-13

* config and/or log files etc.
/var/lib/dkms/nvidia/390.48/build/make.log:
DKMS make.log for nvidia-390.48 for kernel 4.16.7-1-ARCH (x86_64)
Thu May 3 14:43:50 YEKT 2018
make[1]: Entering directory '/usr/lib/modules/4.16.7-1-ARCH/build'
SYMLINK /var/lib/dkms/nvidia/390.48/build/nvidia/nv-kernel.o
SYMLINK /var/lib/dkms/nvidia/390.48/build/nvidia-modeset/nv-modeset-kernel.o

Compiler version check failed:

The major and minor number of the compiler used to
compile the kernel:

gcc version 8.1.0 (GCC)

does not match the compiler used here:

cc (GCC) 7.3.1 20180406
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


It is recommended to set the CC environment variable
to the compiler that was used to compile the kernel.

The compiler version check can be disabled by setting
the IGNORE_CC_MISMATCH environment variable to "1".
However, mixing compiler versions between the kernel
and kernel modules can result in subtle bugs that are
difficult to diagnose.

*** Failed CC version check. Bailing out! ***

make[2]: *** [/var/lib/dkms/nvidia/390.48/build/Kbuild:180: cc_version_check] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [Makefile:1562: _module_/var/lib/dkms/nvidia/390.48/build] Error 2
make[1]: Leaving directory '/usr/lib/modules/4.16.7-1-ARCH/build'
make: *** [Makefile:79: modules] Error 2

Steps to reproduce:
Install linux, gcc and nvidia-dkms from testing. nvidia-dkms module will fail to compile.