RE_SYNTAX_POSIX_BASIC  492 compat/regex/regcomp.c 			 : RE_SYNTAX_POSIX_BASIC);
RE_SYNTAX_POSIX_BASIC  231 compat/regex/regex.h #define RE_SYNTAX_ED RE_SYNTAX_POSIX_BASIC
RE_SYNTAX_POSIX_BASIC  233 compat/regex/regex.h #define RE_SYNTAX_SED RE_SYNTAX_POSIX_BASIC