RE_SYNTAX_POSIX_EGREP  321 maint/gnulib/tests/test-regex.c   re_set_syntax (RE_SYNTAX_POSIX_EGREP);
RE_SYNTAX_POSIX_EGREP  337 maint/gnulib/tests/test-regex.c   re_set_syntax (RE_SYNTAX_POSIX_EGREP | RE_NO_EMPTY_RANGES);
RE_SYNTAX_POSIX_EGREP  466 maint/gnulib/tests/test-regex.c   re_set_syntax (RE_SYNTAX_POSIX_EGREP);