X-Git-Url: https://git.cworth.org/git?p=tar;a=blobdiff_plain;f=m4%2Fdirfd.m4;fp=m4%2Fdirfd.m4;h=48b7bae1a846d549a14a63eb5aa9cdff5d4cc0d6;hp=7fefa2e483acfa164b4109829b0339dff123e2a3;hb=b414e25de8ca49d7567a92c203d431383ec57c83;hpb=29ece34f44a27750bbfd76154ad9882580453dc7

diff --git a/m4/dirfd.m4 b/m4/dirfd.m4
index 7fefa2e..48b7bae 100644
--- a/m4/dirfd.m4
+++ b/m4/dirfd.m4
@@ -1,4 +1,4 @@
-# serial 17   -*- Autoconf -*-
+# serial 18   -*- Autoconf -*-
 
 dnl Find out how to get the file descriptor associated with an open DIR*.
 
@@ -40,11 +40,13 @@ AC_DEFUN([gl_FUNC_DIRFD],
        gl_cv_func_dirfd_macro=yes,
        gl_cv_func_dirfd_macro=no)])
 
-  # Use the replacement only if we have no function, macro,
-  # or declaration with that name.
-  if test $ac_cv_func_dirfd,$ac_cv_have_decl_dirfd,$gl_cv_func_dirfd_macro \
-      = no,no,no; then
-    AC_REPLACE_FUNCS([dirfd])
+  # Use the replacement only if we have no function or macro with that name.
+  if test $ac_cv_func_dirfd,$gl_cv_func_dirfd_macro = no,no; then
+    if test $ac_cv_have_decl_dirfd = yes; then
+      # If the system declares dirfd already, let's declare rpl_dirfd instead.
+      REPLACE_DIRFD=1
+    fi
+    AC_LIBOBJ([dirfd])
     AC_CACHE_CHECK(
               [how to get the file descriptor associated with an open DIR*],
                    gl_cv_sys_dir_fd_member_name,