REG_ECOLLATE      379 lib/regex.h    #define REG_ECOLLATE	_REG_ECOLLATE
REG_ECOLLATE      805 src/regex-emacs.c   REG_ECOLLATE,		/* Not implemented.  */
REG_ECOLLATE      306 test/manual/etags/c-src/emacs/src/regex.h   REG_ECOLLATE,		/* Not implemented.  */