Start working on removing those .la files en masse.

chromeos/config/make.conf.common-target

 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # NOTE: This assumes that the following have already been defined:
 #  { ROOT, ARCH, CHOST, [BOARD_OVERLAY] }
 
 # TODO: This will have to come from somewhere else when we support a 32-bit
 # build host environment.
 CBUILD=x86_64-pc-linux-gnu
@@ skipping 52 matching lines @@
 am_cv_python_pythondir="\${prefix}/lib/python2.6/site-packages"
 
 # the AC_FUNC_WAIT3 macro uses runtime-checks for the function, which
 # doesn't work when cross-compiling; we know that our targets have it,
 # so let's tell about it to autoconf. — Flameeyes
 ac_cv_func_wait3_rusage=yes
 
 # Native language support is handled inside Chrome itself.
 LINGUAS="en"
 
+# avoid removing libltdl.la as it is required by some macro files
+INSTALL_MASK="
+/usr/lib/lib[0-9]*.la
+/usr/lib/lib[a-k]*.la
+/usr/lib/lib[m-z]*.la
+/usr/lib/libl[0-9]*.la
+/usr/lib/libl[a-s]*.la
+/usr/lib/libl[u-z]*.la
+/usr/lib/liblt[0-9]*.la
+/usr/lib/liblt[a-c]*.la
+/usr/lib/liblt[e-z]*.la
+/usr/lib/libltd[0-9]*.la
+/usr/lib/libltd[a-k]*.la
+/usr/lib/libltd[m-z]*.la
+/usr/lib/libltdl[0-9]*.la
+/usr/lib/libltdl[a-z]*.la
+"
+
 # Allow the user to override or define additional settings.
 source make.conf.user