am 48030e68: am e7ddcad8: am 0f4575db: Merge "HAVE_POSIX_CLOCKS doesn\'t imply CLOCK_BOOTTIME."

* commit '48030e68e5d2d763ab9c1ca88036837e1e4f3c08':
  HAVE_POSIX_CLOCKS doesn't imply CLOCK_BOOTTIME.