[OS] Upgrade for configure.ac?

[Lou Hafer]

Gents,

	You might want to update your top-level configure.ac file to use
AC_COIN_CREATE_LIBTOOL rather than AC_COIN_INIT_AUTOMAKE.  You'll get faster
configuration because libtool is created once at the top level and reused by all
the individual projects. Diff below from OS/trunk.

						Lou


===================================================================
--- configure.ac        (revision 970)
+++ configure.ac        (working copy)
@@ -33,11 +33,10 @@
 AC_PREFIX_DEFAULT([`pwd`])
 
 #############################################################################
-#     We only need automake to generate Makefiles for the distribution      #
+#  Do the tests necessary to configure compilers and initialise autotools   #
 #############################################################################
 
-# Initialize automake
-AC_COIN_INIT_AUTOMAKE
+AC_COIN_CREATE_LIBTOOL