[gimp] configure.ac: Use new libtool syntax

[Javier JardÃn <jjardon src gnome org>]

commit de9c5fda0061b2b06a2b78480e1942889893945c
Author: Javier JardÃn <jjardon gnome org>
Date:   Mon Oct 17 01:55:06 2011 +0100

    configure.ac: Use new libtool syntax

 configure.ac |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index b60e569..3f154fe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -156,9 +156,8 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 
 # Initialize libtool
-AM_DISABLE_STATIC
-AC_LIBTOOL_WIN32_DLL
-AM_PROG_LIBTOOL
+LT_PREREQ([2.2])
+LT_INIT([disable-static win32-dll])
 
 AM_PROG_AS