config/always-sed.m4

   1 dnl #
   2 dnl # Set the flags used for sed in-place edits.
   3 dnl #
   4 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_SED], [
   5         ac_inplace=""
   6         AC_CACHE_CHECK([for sed --in-place], [ac_cv_path_SED],
   7                 [AC_PATH_PROGS_FEATURE_CHECK([SED], [sed],
   8                         [[tmpfile=$(mktemp)
   9                           echo foo > $tmpfile
  10                           $ac_path_SED --in-place 's#foo#bar#' $tmpfile \
  11                           && ac_cv_path_SED=$ac_path_SED
  12                           rm $tmpfile]],
  13                         [ac_inplace="-i ''"])])
  14         AS_IF([test "x$ac_inplace" = "x"], [ac_inplace="--in-place"])
  15         AC_SUBST([ac_inplace])
  16 ])