cc -O2 -pipe  -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations pthread/pthread_mutexattr_setpshared.c -o pthread/pthread_mutexattr_setpshared -D_POSIX_C_SOURCE=202405L  -lm -lpthread 
pthread/pthread_mutexattr_setpshared.c:6:42: error: use of undeclared identifier 'pthread_mutexattr_setpshared'
int (*foo)(pthread_mutexattr_t *, int) = pthread_mutexattr_setpshared;
                                         ^
1 error generated.