[Android Q&A, Help & Troubleshooting] clan crate:
So I'm doing this guide (https://xdaforums.com/zenfone2/general/compile-kernel-t3307932) by say99 on how to compile your own kernel and what I've done are the following:

sudo apt-get update
sudo apt-get install openjdk-8-jdk
sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip
export ARCH=x86_64
export CCOMPILE=$CROSS_COMPILE
export CROSS_COMPILE=x86_64-linux-
export PATH=/root/Documents/kernel/x86_64-toolchain-GCC-5.3.0/bin:$PATH
export PATH="${PATH}:/root/Documents/kernel/x86_64-toolchain-GCC-5.3.0/bin"
cd /Documents/kernel/kernel-FlareM-cm-13.0
make menuconfig
./buildzf2

now when I typed in ./buildzf2 it returns with this error:

script made by eoghan2t7 of xda
say thanks to him if this helped you :)

Current Date : 21-08-2018
Applying Build Settings
Setting CPU Cores/Threads
Setting Version Number
Setting Extra Version
Setting Defconfig
SElinux set to Enforcing
Setting bzImage Location For FlareM kernel By say99 Of XDA (thanks to eoghan2t7)
Enabling Graphite Optimizations
Enviroment Setup Complete Now Moving To Compiling
Cleaning Out Compiled Files
Starting Build Process
.config exists
Continuing To Compiler
HOSTCC scripts/kconfig/conf.o
HOSTCC scripts/kconfig/zconf.tab.o
In file included from scripts/kconfig/zconf.tab.c:2500:
scripts/kconfig/confdata.c: In function ‘conf_write’:
scripts/kconfig/confdata.c:762:19: warning: ‘%s’ directive writing likely 7 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(newname, "%s%s", dirname, basename);
^~~~~~
scripts/kconfig/confdata.c:762:19: note: assuming directive output of 7 bytes
scripts/kconfig/confdata.c:762:2: note: ‘sprintf’ output 1 or more bytes (assuming 4104) into a destination of size 4097
sprintf(newname, "%s%s", dirname, basename);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
scripts/kconfig/confdata.c:765:20: warning: ‘.tmpconfig.’ directive writing 11 bytes into a region of size between 1 and 4097 [-Wformat-overflow=]
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
^~~~~~~~~~~~~~~~~
scripts/kconfig/confdata.c:765:3: note: ‘sprintf’ output between 13 and 4119 bytes into a destination of size 4097
sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
HOSTLD scripts/kconfig/conf
scripts/kconfig/conf --silentoldconfig Kconfig
drivers/external_drivers/camera/Kconfig:5:warning: config symbol defined without type
make[1]: Nothing to be done for 'all'.
CHK include/generated/uapi/linux/version.h
CHK include/generated/utsrelease.h
UPD include/generated/utsrelease.h
CC scripts/mod/devicetable-offsets.s
GEN scripts/mod/devicetable-offsets.h
HOSTCC scripts/mod/file2alias.o
HOSTLD scripts/mod/modpost
make[1]: Nothing to be done for 'relocs'.
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
CC init/version.o
LD init/built-in.o
CC arch/x86/kernel/acpi/cstate.o
CC kernel/sys.o
CC arch/x86/kernel/kprobes/core.o
CC arch/x86/kernel/cpu/intel_cacheinfo.o
CC arch/x86/kernel/kprobes/opt.o
CC arch/x86/kernel/cpu/common.o
CC arch/x86/kernel/kprobes/ftrace.o
arch/x86/kernel/acpi/cstate.c:163:6: error: redefinition of ‘mwait_idle_with_hints’
void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
^
In file included from arch/x86/kernel/acpi/cstate.c:16:0:
/root/Documents/kernel/kernel-FlareM-cm-13.0/arch/x86/include/asm/mwait.h:28:20: note: previous definition of ‘mwait_idle_with_hints’ was here
static inline void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
^
scripts/Makefile.build:308: recipe for target 'arch/x86/kernel/acpi/cstate.o' failed
make[3]: *** [arch/x86/kernel/acpi/cstate.o] Error 1
scripts/Makefile.build:455: recipe for target 'arch/x86/kernel/acpi' failed
make[2]: *** [arch/x86/kernel/acpi] Error 2
make[2]: *** Waiting for unfinished jobs....
LD arch/x86/kernel/kprobes/built-in.o
CC arch/x86/kernel/cpu/match.o
CC kernel/power/consoleearlysuspend.o
CC arch/x86/kernel/cpu/bugs_64.o
CC arch/x86/kernel/cpu/intel.o
CC kernel/trace/trace.o
CC arch/x86/kernel/cpu/amd.o
kernel/power/consoleearlysuspend.c: In function ‘console_early_suspend’:
kernel/power/consoleearlysuspend.c:28:2: error: implicit declaration of function ‘acquire_console_sem’ [-Werror=implicit-function-declaration]
acquire_console_sem();
^
kernel/power/consoleearlysuspend.c:34:2: error: implicit declaration of function ‘release_console_sem’ [-Werror=implicit-function-declaration]
release_console_sem();
^
cc1: some warnings being treated as errors
scripts/Makefile.build:308: recipe for target 'kernel/power/consoleearlysuspend.o' failed
make[2]: *** [kernel/power/consoleearlysuspend.o] Error 1
scripts/Makefile.build:455: recipe for target 'kernel/power' failed
make[1]: *** [kernel/power] Error 2
make[1]: *** Waiting for unfinished jobs....
CC arch/x86/kernel/cpu/centaur.o
CC arch/x86/kernel/cpu/perf_event.o
CC arch/x86/kernel/cpu/perf_event_amd.o
LD kernel/trace/built-in.o
Makefile:845: recipe for target 'kernel' failed
make: *** [kernel] Error 2
make: *** Waiting for unfinished jobs....
CC arch/x86/kernel/cpu/perf_event_amd_uncore.o
CC arch/x86/kernel/cpu/perf_event_p6.o
CC arch/x86/kernel/cpu/perf_event_knc.o
PASYMS arch/x86/realmode/rm/pasyms.h
LDS arch/x86/realmode/rm/realmode.lds
CC arch/x86/kernel/cpu/perf_event_p4.o
LD arch/x86/realmode/rm/realmode.elf
RELOCS arch/x86/realmode/rm/realmode.relocs
CC arch/x86/kernel/cpu/perf_event_intel_lbr.o
OBJCOPY arch/x86/realmode/rm/realmode.bin
CC arch/x86/kernel/cpu/perf_event_intel_ds.o
AS arch/x86/realmode/rmpiggy.o
CC arch/x86/kernel/cpu/perf_event_intel.o
CC arch/x86/kernel/cpu/perf_event_intel_uncore.o
LD arch/x86/realmode/built-in.o
CC arch/x86/kernel/cpu/mcheck/mce.o
CC arch/x86/kernel/cpu/mtrr/main.o
CC arch/x86/kernel/cpu/mtrr/if.o
CC arch/x86/kernel/cpu/perfctr-watchdog.o
CC arch/x86/kernel/cpu/mcheck/mce_intel.o
CC arch/x86/kernel/cpu/mcheck/mce_amd.o
CC arch/x86/kernel/cpu/mtrr/generic.o
CC arch/x86/kernel/cpu/perf_event_amd_ibs.o
CC arch/x86/kernel/cpu/mcheck/threshold.o
CC arch/x86/kernel/cpu/mcheck/therm_throt.o
CC arch/x86/kernel/cpu/mtrr/cleanup.o
CC arch/x86/kernel/cpu/mcheck/mce-apei.o
CC [M] arch/x86/kernel/cpu/mcheck/mce-inject.o
VDSOSYM arch/x86/vdso/vdso-syms.lds
VDSOSYM arch/x86/vdso/vdsox32-syms.lds
CC arch/x86/kernel/cpu/vmware.o
VDSOSYM arch/x86/vdso/vdso32-int80-syms.lds
VDSOSYM arch/x86/vdso/vdso32-syscall-syms.lds
VDSOSYM arch/x86/vdso/vdso32-sysenter-syms.lds
VDSOSYM arch/x86/vdso/vdso32-syms.lds
LD arch/x86/kernel/cpu/mcheck/built-in.o
CC arch/x86/kernel/cpu/hypervisor.o
LD arch/x86/vdso/built-in.o
CC arch/x86/kernel/cpu/mshyperv.o
LD arch/x86/kernel/cpu/mtrr/built-in.o
LD arch/x86/kernel/cpu/built-in.o
scripts/Makefile.build:455: recipe for target 'arch/x86/kernel' failed
make[1]: *** [arch/x86/kernel] Error 2
Makefile:845: recipe for target 'arch/x86' failed
make: *** [arch/x86] Error 2
arch/x86/boot/bzImage Does Not Exists Please Check For Compile Errors
Now exiting script

anything I could do? Any help would be appreciated. :)