switch to newer libtool macro to avoid autoconf warnings

git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1849 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

urjtag/ChangeLog

@@ -9,6 +9,9 @@
     style of all other Blackfin parts.
   * src/bus/bf548_ezkit.c (bf548_ezkit_bus_new): Update signal names.
 
+  * configure.ac: Change to newer libtool macro (LT_INIT) to avoid warnings.
+  * acinclude.m4: Redirect LT_INIT to AC_PROG_LIBTOOL for older libtools.
+
 2010-08-30  Mike Frysinger  <vapier@gentoo.org>
 
   * configure.ac: Clean up libusb detection to prefer 1.0 over 0.1, and accept

urjtag/acinclude.m4

@@ -157,3 +157,13 @@ dnl
 m4_ifndef([m4_ifnblank],[dnl
 m4_define([m4_ifnblank], [m4_ifval(m4_normalize([$1]), [$2], [$3])])
 ])dnl
+
+
+dnl LT_INIT
+dnl -------
+dnl
+dnl this was added in libtool-2
+dnl
+m4_ifndef([LT_INIT],[dnl
+m4_define([LT_INIT],[LT_AM_PROG_LIBTOOL])
+])dnl

urjtag/configure.ac

@@ -95,9 +95,9 @@ AC_GNU_SOURCE
 AM_GNU_GETTEXT(external)
 AM_GNU_GETTEXT_VERSION(0.14.1)
 
+LT_INIT
 AC_PROG_CC
 AC_PROG_YACC
-AC_PROG_LIBTOOL
 AC_PROG_CC_C99
 PKG_PROG_PKG_CONFIG