- AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Define to enforce POSIX.1-2001 compliance.])
- AC_DEFINE(_XOPEN_SOURCE, 600, [Define to enforce X/Open 6 (XSI) compliance.])
+ AC_DEFINE(_POSIX_C_SOURCE, 200809L, [Define to enforce POSIX.1-2008 compliance.])
+ AC_DEFINE(_XOPEN_SOURCE, 700, [Define to enforce X/Open 7 (XSI) compliance.])