cc -pthread -Wall -Wextra -Werror=implicit-function-declaration stdlib/drand48.c -o stdlib/drand48 -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv stdlib/drand48.c: In function ‘main’: stdlib/drand48.c:10:24: error: implicit declaration of function ‘drand48’; did you mean ‘srand’? [-Wimplicit-function-declaration] 10 | double value = drand48(); | ^~~~~~~ | srand