I have a problem while installing mdk4 on Arch based system

When I try to install /aicrack-ng/mdk4 I get:

: ld returned 1 exit status make: *** [Makefile:38: mdk4] Error 1 make: Leaving directory '/home/u4/mdk4/src' make: *** [Makefile:10: all] Error 2

This is the end of the output (since when I submit the whole output it is considered as a spam) when I run 'make' in the mdk4 folder.

-g -O3 -Wall -Wextra   -c -o wids.o wids.c
make: Leaving directory '/home/u4/mdk4/src/attacks'
make -C attacks
make: Entering directory '/home/u4/mdk4/src/attacks'
make: Nothing to be done for 'all'.
make: Leaving directory '/home/u4/mdk4/src/attacks'
gcc -g -W -Wall -O3 -D_FILE_OFFSET_BITS=64 -D_REVISION=mdk4-v1 -DCONFIG_LIBNL30 -DCONFIG_LIBNL -I/usr/include/libnl3  -g -O3 -Wall -Wextra -fcommon  mdk4.c osdep/libosdep.a debug.o helpers.o mac_addr.o linkedlist.o greylist.o dumpfile.o packet.o brute.o osdep.o channelhopper.o ghosting.o fragmenting.o attacks/attacks.o attacks/auth_dos.o attacks/beacon_flood.o attacks/countermeasures.o attacks/deauth.o attacks/dummy.o attacks/eapol.o attacks/fuzzer.o attacks/ieee80211s.o attacks/probing.o attacks/wids.o -o mdk4 -lnl-genl-3 -lnl-3  -lm -Losdep -losdep -lpthread -lpcap
/usr/bin/ld: attacks/auth_dos.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/beacon_flood.o:/home/u4/mdk4/src/attacks/beacon_flood.c:34: multiple definition of `bssid'; attacks/auth_dos.o:/home/u4/mdk4/src/attacks/auth_dos.c:50: first defined here
/usr/bin/ld: attacks/beacon_flood.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/countermeasures.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/deauth.o:/home/u4/mdk4/src/attacks/deauth.c:19: multiple definition of `bssid'; attacks/auth_dos.o:/home/u4/mdk4/src/attacks/auth_dos.c:50: first defined here
/usr/bin/ld: attacks/deauth.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/dummy.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/eapol.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/fuzzer.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/ieee80211s.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/probing.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
/usr/bin/ld: attacks/wids.o:/home/u4/mdk4/src/attacks/attacks.h:39: multiple definition of `attack_count'; attacks/attacks.o:/home/u4/mdk4/src/attacks/attacks.h:39: first defined here
collect2: error: ld returned 1 exit status
make: *** [Makefile:38: mdk4] Error 1
make: Leaving directory '/home/u4/mdk4/src'
make: *** [Makefile:10: all] Error 2

- And then I found this solution on github: Installation git clone https://github.com/aircrack-ng/mdk4 cd mdk4 make sudo make install # Using Arch Linux (and derived) append CC=clang after any make in commands. But the thing is I have no idea how to do this > append CC=clang after any make in commands. I use manjaro with bspwm environment What should I do? edit: So I did the CC=clang thing and this time the error is slightly different: ` error: linker command failed with exit code 1 (use -v to see invocation) make: *** [Makefile:38: mdk4] Error 1 make: Leaving directory '/home/u4/mdk4/src' make: *** [Makefile:10: all] Error 2` edit: The first screenshot is the beginning of the output and the seconde one is the end of the output.