写了一个dining philosopher的程序
运行的时候，总是有fragmentation fault的问题
用dbx调试，总是这个结果
rohan% cc -g posix_phil.c
Undefined                       first referenced
 symbol                             in file
nanosleep                           posix_phil.o
sem_destroy                         posix_phil.o
sem_init                            posix_phil.o
sem_post                            posix_phil.o
sem_wait                            posix_phil.o
ld: fatal: Symbol referencing errors. No output written to a.out

请高人指点这是哪出问题了？ 谢谢

try this:

cc -g posix_phil.c  -lrt