~/workspace/pset4/recover/ $ make recover
clang -fsanitize=signed-integer-overflow -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow recover.c -lc
clang: error: linker command failed with exit code 1 (use -v to see invocation)