Macros starting with `w' in bsd/sys

• WCOREDUMP bsd/sys/wait.h:90
• W_EXITCODE bsd/sys/wait.h:92
• WEXITSTATUS bsd/sys/wait.h:88
• WIFEXITED bsd/sys/wait.h:87
• WIFSIGNALED bsd/sys/wait.h:85
• WIFSTOPPED bsd/sys/wait.h:83
• _W_INT bsd/sys/wait.h:74
• _WSTATUS bsd/sys/wait.h:81
• W_STOPCODE bsd/sys/wait.h:93
• WSTOPSIG bsd/sys/wait.h:84
• WTERMSIG bsd/sys/wait.h:86