Just a random suggestion: If it really is just netiso/xebec
that is the cause of the ugly code, then why not do:

	find ${LDIRS} -type f -name '*.h' | \
		grep -v netiso/xebec | \
		cpio -pdvum ${DESTDIR}/usr/include

this also looks much more aestethically pleasing, at least to me.
Feel free to convert cpio to pax if you want to, personally I mostly
use tar but also know cpio and don't really feel a pressing need to
learn the options for pax...

Yours,
	-arnej

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