Use our own libtool that knows about cross compiling, not the libtool
that is included.

--- clamav-0.88.4/acinclude.m4	2006/09/12 08:07:27	1.1
+++ clamav-0.88.4/acinclude.m4	2006/09/12 08:16:31
@@ -520,7 +520,7 @@
 LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"
 
 # Always use our own libtool.
-LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+LIBTOOL="$host_alias-libtool"
 AC_SUBST(LIBTOOL)dnl
 
 # Prevent multiple expansion
@@ -1238,7 +1238,7 @@
 rm="rm -f"
 
 # Global variables:
-default_ofile=libtool
+default_ofile=${host_alias}-libtool
 can_build_shared=yes
 
 # All known linkers require a `.a' archive for static linking (except M$VC,