Macros starting with `c' in sys

• CCEQ sys/termios.h:86
• claligned sys/param.h:120
• clbase sys/param.h:125
• clrbit sys/param.h:166
• clrbuf sys/buf.h:226
• clrnd sys/param.h:126
• CLRSIG sys/signalvar.h:88
• cltom sys/mbuf.h:64
• CMSG_DATA sys/socket.h:201
• CMSG_FIRSTHDR sys/socket.h:210
• CMSG_NXTHDR sys/socket.h:204
• __CONCAT sys/cdefs.h:56
• crhold sys/ucred.h:52
• CTRL sys/ttydefaults.h:54
• CURSIG sys/signalvar.h:80