>From c57d096e5c405f99cb2cf8032bca4f850410189d Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sat, 7 Jan 2023 11:23:26 +0100
Subject: [PATCH 04/18] fdatasync: Rename LIB_FDATASYNC to FDATASYNC_LIB.

* m4/fdatasync.m4: Rename LIB_FDATASYNC to FDATASYNC_LIB.
All uses changed.
* NEWS: Mention the change.
---
 ChangeLog               |  7 +++++++
 NEWS                    |  3 +++
 m4/fdatasync.m4         | 12 ++++++++----
 modules/fdatasync       |  2 +-
 modules/fdatasync-tests |  2 +-
 5 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index c3bfd87e35..f5cfe89c21 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2023-01-07  Bruno Haible  <bruno@clisp.org>
+
+	fdatasync: Rename LIB_FDATASYNC to FDATASYNC_LIB.
+	* m4/fdatasync.m4: Rename LIB_FDATASYNC to FDATASYNC_LIB.
+	All uses changed.
+	* NEWS: Mention the change.
+
 2023-01-07  Bruno Haible  <bruno@clisp.org>
 
 	euidaccess: Rename LIB_EACCESS to EUIDACCESS_LIBGEN.
diff --git a/NEWS b/NEWS
index 3c20b45aec..ca974f2685 100644
--- a/NEWS
+++ b/NEWS
@@ -74,6 +74,9 @@ User visible incompatible changes
 
 Date        Modules         Changes
 
+2023-01-07  fdatasync       Link with $(FDATASYNC_LIB) instead of
+                            $(LIB_FDATASYNC).
+
 2023-01-07  euidaccess      Link with $(EUIDACCESS_LIBGEN) instead of
                             $(LIB_EACCESS).
 
diff --git a/m4/fdatasync.m4 b/m4/fdatasync.m4
index acd71a1a56..8c5cc4fdaf 100644
--- a/m4/fdatasync.m4
+++ b/m4/fdatasync.m4
@@ -1,4 +1,4 @@
-# fdatasync.m4 serial 6
+# fdatasync.m4 serial 7
 dnl Copyright (C) 2008-2023 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -11,8 +11,8 @@ AC_DEFUN([gl_FUNC_FDATASYNC],
 
   dnl Using AC_CHECK_FUNCS_ONCE would break our subsequent AC_SEARCH_LIBS
   AC_CHECK_DECLS_ONCE([fdatasync])
-  LIB_FDATASYNC=
-  AC_SUBST([LIB_FDATASYNC])
+  FDATASYNC_LIB=
+  AC_SUBST([FDATASYNC_LIB])
 
   if test $ac_cv_have_decl_fdatasync = no; then
     HAVE_DECL_FDATASYNC=0
@@ -30,7 +30,7 @@ AC_DEFUN([gl_FUNC_FDATASYNC],
         gl_saved_libs=$LIBS
         AC_SEARCH_LIBS([fdatasync], [rt posix4],
           [test "$ac_cv_search_fdatasync" = "none required" ||
-           LIB_FDATASYNC=$ac_cv_search_fdatasync])
+           FDATASYNC_LIB=$ac_cv_search_fdatasync])
         LIBS=$gl_saved_libs
         ;;
       *)
@@ -42,4 +42,8 @@ AC_DEFUN([gl_FUNC_FDATASYNC],
         ;;
     esac
   fi
+
+  dnl For backward compatibility.
+  LIB_FDATASYNC="$FDATASYNC_LIB"
+  AC_SUBST([LIB_FDATASYNC])
 ])
diff --git a/modules/fdatasync b/modules/fdatasync
index bff4dc3a69..6e0f48df21 100644
--- a/modules/fdatasync
+++ b/modules/fdatasync
@@ -23,7 +23,7 @@ Include:
 <unistd.h>
 
 Link:
-$(LIB_FDATASYNC)
+$(FDATASYNC_LIB)
 
 License:
 LGPLv2+
diff --git a/modules/fdatasync-tests b/modules/fdatasync-tests
index cacfb8a11e..88da0b10de 100644
--- a/modules/fdatasync-tests
+++ b/modules/fdatasync-tests
@@ -11,4 +11,4 @@ configure.ac:
 Makefile.am:
 TESTS += test-fdatasync
 check_PROGRAMS += test-fdatasync
-test_fdatasync_LDADD = $(LDADD) $(LIB_FDATASYNC)
+test_fdatasync_LDADD = $(LDADD) $(FDATASYNC_LIB)
-- 
2.34.1