DKMS make.log for nvidia-340.96 for kernel 4.5.2-1-ARCH (x86_64)

gcc-version-check failed:

You appear to be compiling the NVIDIA kernel module
with a different compiler than the one that was
used to compile the running kernel.  The Linux 2.6
kernel module loader rejects kernel modules built
with a version of gcc that does not exactly match
that of the compiler used to build the running
kernel.  The compiler used to compile the kernel
was gcc 5.3; the current compiler is gcc 6.1.

If you know what you are doing and want to override
the gcc version check, you can do so by setting the
IGNORE_CC_MISMATCH environment variable to "1".

In any other case, set the CC environment variable
to the name of the compiler that was used to compile
the kernel.

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

nvidia-modules-common.mk:201: recipe for target 'build-sanity-checks' failed
make: *** [build-sanity-checks] Error 1
make: Entering directory '/var/lib/dkms/nvidia/340.96/build/uvm'
cd ./..; make module SYSSRC=/lib/modules/4.5.2-1-ARCH/build SYSOUT=/lib/modules/4.5.2-1-ARCH/build KBUILD_EXTMOD=./..
make[1]: Entering directory '/var/lib/dkms/nvidia/340.96/build'
NVIDIA: calling KBUILD...
make[2]: Entering directory '/usr/lib/modules/4.5.2-1-ARCH/build'
test -e include/generated/autoconf.h -a -e include/config/auto.conf || (		\
echo >&2;							\
echo >&2 "  ERROR: Kernel configuration is invalid.";		\
echo >&2 "         include/generated/autoconf.h or include/config/auto.conf are missing.";\
echo >&2 "         Run 'make oldconfig && make prepare' on kernel src to fix it.";	\
echo >&2 ;							\
/bin/false)
mkdir -p ./../.tmp_versions ; rm -f ./../.tmp_versions/*
make -f ./scripts/Makefile.build obj=./..
scripts/Makefile.build:44: ../Makefile: No such file or directory
make[3]: *** No rule to make target '../Makefile'.  Stop.
Makefile:1391: recipe for target '_module_./..' failed
make[2]: *** [_module_./..] Error 2
make[2]: Leaving directory '/usr/lib/modules/4.5.2-1-ARCH/build'
NVIDIA: left KBUILD.
nvidia.ko failed to build!
Makefile:184: recipe for target 'nvidia.ko' failed
make[1]: *** [nvidia.ko] Error 1
make[1]: Leaving directory '/var/lib/dkms/nvidia/340.96/build'
Makefile:219: recipe for target '../Module.symvers' failed
make: *** [../Module.symvers] Error 2
make: Leaving directory '/var/lib/dkms/nvidia/340.96/build/uvm'