Working on splitting up meta-sourcery

gdbserver emitted packages.txt

total 560K
-rw-r--r-- 2 clarson esd_ea 240K Apr 11 16:12 gdbserver_7.7.50.20140217-cvs-r0_i586.ipk
-rw-r--r-- 2 clarson esd_ea 306K Apr 11 16:12 gdbserver-dbg_7.7.50.20140217-cvs-r0_i586.ipk
-rw-r--r-- 2 clarson esd_ea  758 Apr 11 16:12 gdbserver-dev_7.7.50.20140217-cvs-r0_i586.ipk
-rw-r--r-- 2 clarson esd_ea 5.7K Apr 11 16:12 gdbserver-doc_7.7.50.20140217-cvs-r0_i586.ipk

gdbserver package metadata.txt

Package: gdbserver
Version: 7.7.50.20140217-cvs-r0
Description: gdb - GNU debugger
 gdb - GNU debugger
Section: devel
Priority: optional
Maintainer: Poky <poky@yoctoproject.org>
License: GPLv3+
Architecture: i586
OE: gdbserver-external
Homepage: http://www.gnu.org/software/gdb/
Source: None

gdbserver-external.bb

SUMMARY = "gdb - GNU debugger"
HOMEPAGE = "http://www.gnu.org/software/gdb/"
SECTION = "devel"
PV = "${@external_run(d, 'gdb', '-v').splitlines()[0].split()[-1]}"
PV[vardepvalue] = "${PV}"

inherit external-toolchain

def get_gdb_license(d):
    output = external_run(d, 'gdb', '-v')
    if output != 'UNKNOWN':
        for line in output.splitlines():
            if line.startswith('License '):
                lic = line.split(':', 1)[0]
                return lic.replace('License ', '')
    else:
        return output

LICENSE = "${@get_gdb_license(d)}"
LICENSE[vardepvalue] = "${LICENSE}"

FILES_${PN} = "${bindir}/gdbserver ${datadir}/gdb"
FILES_${PN}-dbg = "${bindir}/.debug/gdbserver.debug"
FILES_${PN}-doc = "${mandir}/man1/gdbserver.1"