git.m6w6.name Git - awesomized/libmemcached/blob - m4/pandora_fdatasync.m4

   1 dnl  Copyright (C) 2009 Sun Microsystems, Inc.
   2 dnl This file is free software; Sun Microsystems, Inc.
   3 dnl gives unlimited permission to copy and/or distribute it,
   4 dnl with or without modifications, as long as this notice is preserved.
   5
   6 #--------------------------------------------------------------------
   7 # Check for a working fdatasync call
   8 #--------------------------------------------------------------------
   9
  10
  11 AC_DEFUN([PANDORA_WORKING_FDATASYNC],[
  12   AC_CACHE_CHECK([working fdatasync],[ac_cv_func_fdatasync],[
  13     AC_LANG_PUSH(C++)
  14     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
  15 #include <unistd.h>
  16       ]],[[
  17 fdatasync(4);
  18       ]])],
  19     [ac_cv_func_fdatasync=yes],
  20     [ac_cv_func_fdatasync=no])
  21     AC_LANG_POP()
  22   ])
  23   AS_IF([test "x${ac_cv_func_fdatasync}" = "xyes"],
  24     [AC_DEFINE([HAVE_FDATASYNC],[1],[If the system has a working fdatasync])])
  25 ])