external/bsd/am-utils/dist/m4/macros/check_unmount_call.m4

   1 dnl ######################################################################
   2 dnl check for the correct system call to unmount a filesystem.
   3 AC_DEFUN([AMU_CHECK_UNMOUNT_CALL],
   4 [
   5 dnl make sure this one is called before [AC_CHECK_UNMOUNT_ARGS]
   6 AC_BEFORE([$0], [AC_CHECK_UNMOUNT_ARGS])
   7 AC_CACHE_CHECK(the system call to unmount a filesystem,
   8 ac_cv_unmount_call,
   9 [
  10 # check for various unmount a filesystem calls
  11 if test "$ac_cv_func_uvmount" = yes ; then
  12   ac_cv_unmount_call=uvmount
  13 elif test "$ac_cv_func_unmount" = yes ; then
  14   ac_cv_unmount_call=unmount
  15 elif test "$ac_cv_func_umount" = yes ; then
  16   ac_cv_unmount_call=umount
  17 else
  18   ac_cv_unmount_call=no
  19 fi
  20 ])
  21 if test "$ac_cv_unmount_call" != no
  22 then
  23   am_utils_unmount_call=$ac_cv_unmount_call
  24   AC_SUBST(am_utils_unmount_call)
  25 fi
  26 ])
  27 dnl ======================================================================