Switch to libtool 2.4.7.

* m4/libtool.m4: Update from libtool-2.4.7, with modifications:
2008-04-06  Bruno Haible  <[email protected]>
	* m4/libtool.m4 (LT_INIT): When setting LIBTOOL, use
	CONFIG_SHELL; don't assume that the Makefile.in will set SHELL
	to ${CONFIG_SHELL}.

* m4/ltoptions.m4: Likewise.
* m4/ltsugar.m4: Likewise.
* m4/ltversion.m4: Likewise.
* m4/lt~obsolete.m4: Likewise.

* build-aux/ltmain.sh: Update from libtool-2.4.7, with modifications:
2017-07-15  Bruno Haible  <[email protected]>
	Allow building statically linked binaries, through
	LDFLAGS="-static". Apply patch from
	<https://lists.gnu.org/archive/html/bug-libtool/2017-07/msg00000.html>.
	* build-aux/ltmain.sh (func_mode_help, func_mode_link): In the
	link mode, accept option '-static-uninstalled-libs' in place of
	'-static', and make '-static' an equivalent of '-all-static'.

Author: bhaible

ChangeLog

@@ -1,3 +1,24 @@
+2022-05-15  Bruno Haible  <[email protected]>
+
+	Switch to libtool 2.4.7.
+	* m4/libtool.m4: Update from libtool-2.4.7, with modifications:
+	2008-04-06  Bruno Haible  <[email protected]>
+		* m4/libtool.m4 (LT_INIT): When setting LIBTOOL, use
+		CONFIG_SHELL; don't assume that the Makefile.in will set SHELL
+		to ${CONFIG_SHELL}.
+	* m4/ltoptions.m4: Likewise.
+	* m4/ltsugar.m4: Likewise.
+	* m4/ltversion.m4: Likewise.
+	* m4/lt~obsolete.m4: Likewise.
+	* build-aux/ltmain.sh: Update from libtool-2.4.7, with modifications:
+	2017-07-15  Bruno Haible  <[email protected]>
+		Allow building statically linked binaries, through
+		LDFLAGS="-static". Apply patch from
+		<https://lists.gnu.org/archive/html/bug-libtool/2017-07/msg00000.html>.
+		* build-aux/ltmain.sh (func_mode_help, func_mode_link): In the
+		link mode, accept option '-static-uninstalled-libs' in place of
+		'-static', and make '-static' an equivalent of '-all-static'.
+
 2022-04-13  Bruno Haible  <[email protected]>
 
 	Fix undefined behaviour.