changemac.sh errors. #12

Hello. I tried to change the mac address on the rom file and after installing all dependencies I get this error

mkdir -p /usr/local/bin /usr/bin/env install ifdtool /usr/local/bin rm -f *.lex.c *.tab.c *.tab.h *.o bincfg flashregion_0_fd.bin flashregion_3_gbe.bin bison -d bincfg.y bison -d bincfg.y gcc -O2 -Wall -Wextra -Wshadow -Werror -Wno-unused-function -c -o bincfg.tab.o bincfg.tab.c flex -o bincfg.lex.c bincfg.l gcc -O2 -Wall -Wextra -Wshadow -Werror -Wno-unused-function -c -o bincfg.lex.o bincfg.lex.c bincfg.y: In function ‘main’: bincfg.y:497:3: error: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Werror=unused-result] 497 | fread(binary->actualblob, 1, binary->lenactualblob, fp); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bincfg.y: In function ‘loadfile’: bincfg.y:443:2: error: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Werror=unused-result] 443 | fread(*parsestring + lenstr, 1, lenfile, fp); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make: *** [<indbygget>: bincfg.tab.o] Fejl 1 make: *** Venter på uafsluttede job.... gcc -O2 -Wall -Wextra -Wshadow -Werror -Wno-unused-function -c -o bincfg.tab.o bincfg.tab.c bincfg.y: In function ‘main’: bincfg.y:497:3: error: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Werror=unused-result] 497 | fread(binary->actualblob, 1, binary->lenactualblob, fp); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bincfg.y: In function ‘loadfile’: bincfg.y:443:2: error: ignoring return value of ‘fread’, declared with attribute warn_unused_result [-Werror=unused-result] 443 | fread(*parsestring + lenstr, 1, lenfile, fp); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make: *** [<indbygget>: bincfg.tab.o] Fejl 1

Got any idea what could be wrong?