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Diffstat (limited to 'config/always-sed.m4')
| -rw-r--r-- | config/always-sed.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/config/always-sed.m4 b/config/always-sed.m4 new file mode 100644 index 000000000000..19633e118aed --- /dev/null +++ b/config/always-sed.m4 @@ -0,0 +1,16 @@ +dnl # +dnl # Set the flags used for sed in-place edits. +dnl # +AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_SED], [ + AC_REQUIRE([AC_PROG_SED])dnl + AC_CACHE_CHECK([for sed --in-place], [ac_cv_inplace], [ + tmpfile=$(mktemp conftest.XXX) + echo foo >$tmpfile + AS_IF([$SED --in-place 's#foo#bar#' $tmpfile 2>/dev/null], + [ac_cv_inplace="--in-place"], + [$SED -i '' 's#foo#bar#' $tmpfile 2>/dev/null], + [ac_cv_inplace="-i ''"], + [AC_MSG_ERROR([$SED does not support in-place])]) + ]) + AC_SUBST([ac_inplace], [$ac_cv_inplace]) +]) |