PCRE_PRERELEASE    85 pcre/pcre_version.cpp return (XSTRING(Z PCRE_PRERELEASE)[1] == 0)?
PCRE_PRERELEASE    87 pcre/pcre_version.cpp   XSTRING(PCRE_MAJOR.PCRE_MINOR) XSTRING(PCRE_PRERELEASE PCRE_DATE);