The libltdl libraries are put in libltdl-* packages, but the libltdl.la file is packaged in libtool-dev. This cause problems when building against an SDK that have libltdl-dev, but not libtool-dev installed.
$ cat libtool_2.4.2.bbappend PRINC := "${@int(PRINC) + 1}" FILES_libltdl-dev =+ "${libdir}/libltdl.la"
1. configure a project based on any wrl6 bsp/standard kernel, glibc_std rootfs. 2. check the contents of the libtool-dev-2.4.2-r6.0.1.i586.rpm package