Certain commands fail to build

[E5ten]

The commands cat, groups, logname, and whoami all fail with this error

# _/home/e5ten/github/go-coreutils/<command name>
runtime/cgo(.text): relocation target pthread_mutex_lock not defined
runtime/cgo(.text): relocation target pthread_mutex_unlock not defined
runtime/cgo(.text): relocation target pthread_mutex_lock not defined
runtime/cgo(.text): relocation target pthread_mutex_unlock not defined
runtime/cgo(.text): relocation target pthread_mutex_lock not defined
runtime/cgo(.text): relocation target pthread_mutex_unlock not defined
runtime/cgo(.text): relocation target pthread_mutex_lock not defined
runtime/cgo(.text): relocation target pthread_mutex_unlock not defined
runtime/cgo(.text): undefined: "pthread_mutex_lock"
runtime/cgo(.text): undefined: "pthread_mutex_unlock"
runtime/cgo(.text): undefined: "pthread_mutex_lock"
runtime/cgo(.text): undefined: "pthread_mutex_unlock"
runtime/cgo(.text): undefined: "pthread_mutex_lock"
runtime/cgo(.text): undefined: "pthread_mutex_unlock"
runtime/cgo(.text): undefined: "pthread_mutex_lock"
runtime/cgo(.text): undefined: "pthread_mutex_unlock"```