Mac OS X上大量CTAG的问题

!_TAG_FILE_FORMAT   2   /extended format; --format=1 will not append ;" to lines/
!_TAG_FILE_SORTED   1   /0=unsorted, 1=sorted, 2=foldcase/
!_TAG_PROGRAM_AUTHOR    Darren Hiebert  /dhiebert@users.sourceforge.net/
!_TAG_PROGRAM_NAME  Exuberant Ctags //
!_TAG_PROGRAM_URL   http://ctags.sourceforge.net    /official site/
!_TAG_PROGRAM_VERSION   5.8 //
NULL    /usr/include/string.h   /^#define NULL /;"  d
_SIZE_T /usr/include/string.h   /^#define   _SIZE_T$/;" d
_SSIZE_T    /usr/include/string.h   /^#define _SSIZE_T$/;"  d
_STRING_H_  /usr/include/string.h   /^#define   _STRING_H_$/;"  d
size_t  /usr/include/string.h   /^typedef   __darwin_size_t     size_t;$/;" t
ssize_t /usr/include/string.h   /^typedef __darwin_ssize_t  ssize_t;$/;"    t
strerror    /usr/include/string.h   /^char  *strerror(int) __DARWIN_ALIAS(strerror);$/;"    v

显然,很多函数都丢失了(strcpy、strlen、strcmp等…)下面是指向实际头文件的链接: http://pastie.org/private/lvgvtg1lmzaenidg0rvq

我只是跑了 ctags /usr/include/string.h 我做错什么了吗?任何帮助都将不胜感激。。。