build: Don't use an obsolete libtool macro.

* gettext-tools/m4/exported.m4 (gt_GLOBAL_SYMBOL_PIPE): Require
_LT_CMD_GLOBAL_SYMBOLS, not AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE.

diff --git a/gettext-tools/m4/exported.m4 b/gettext-tools/m4/exported.m4
index fc379231f9a9d79644fce6dbe31da74ab06f5093..be30ec9a43580f13cabd580c25c420ab3deaeaef 100644 (file)
--- a/gettext-tools/m4/exported.m4
+++ b/gettext-tools/m4/exported.m4
@@ -1,5 +1,5 @@
-# exported.m4 serial 1 (gettext-0.18)
-dnl Copyright (C) 2006, 2009 Free Software Foundation, Inc.
+# exported.m4 serial 2 (gettext-0.21)
+dnl Copyright (C) 2006, 2009, 2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -9,7 +9,7 @@ dnl Check for nm output filter that yields the exported symbols.
 AC_DEFUN([gt_GLOBAL_SYMBOL_PIPE], [
   AC_REQUIRE([AC_PROG_NM]) dnl provided by libtool.m4
   AC_SUBST([NM])
-  AC_REQUIRE([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE]) dnl provided by libtool.m4
+  AC_REQUIRE([_LT_CMD_GLOBAL_SYMBOLS]) dnl provided by libtool.m4
   GLOBAL_SYMBOL_PIPE=$lt_cv_sys_global_symbol_pipe
   AC_SUBST([GLOBAL_SYMBOL_PIPE])
   if test -n "$GLOBAL_SYMBOL_PIPE"; then