Something weird is going on, I do the exact same thing and get no packlists, both on Gentoo and on Ubuntu:

Upgrade, See https://github.com/Perl-Toolchain-Gang/ExtUtils-MakeMaker/commit/58ec782413fdfb03f30c0de39131e7eb228f8bc9

How do these parts look in your Makefile?

Pretty much as you'd expect 
pure_site_install :: all
    $(NOECHO) $(MOD_INSTALL) \
        read $(SITEARCHEXP)\auto\$(FULLEXT)\.packlist \
        write $(DESTINSTALLSITEARCH)\auto\$(FULLEXT)\.packlist \
        $(INST_LIB) $(DESTINSTALLSITELIB) \
        $(INST_ARCHLIB) $(DESTINSTALLSITEARCH) \
        $(INST_BIN) $(DESTINSTALLSITEBIN) \
        $(INST_SCRIPT) $(DESTINSTALLSITESCRIPT) \
        $(INST_MAN1DIR) $(DESTINSTALLSITEMAN1DIR) \
        $(INST_MAN3DIR) $(DESTINSTALLSITEMAN3DIR)
    $(NOECHO) $(WARN_IF_OLD_PACKLIST) \
        $(PERL_ARCHLIB)\auto\$(FULLEXT)

[download]
 
pure_vendor_install :: all
    $(NOECHO) $(MOD_INSTALL) \
        read $(VENDORARCHEXP)\auto\$(FULLEXT)\.packlist \
        write $(DESTINSTALLVENDORARCH)\auto\$(FULLEXT)\.packlist \
        $(INST_LIB) $(DESTINSTALLVENDORLIB) \
        $(INST_ARCHLIB) $(DESTINSTALLVENDORARCH) \
        $(INST_BIN) $(DESTINSTALLVENDORBIN) \
        $(INST_SCRIPT) $(DESTINSTALLVENDORSCRIPT) \
        $(INST_MAN1DIR) $(DESTINSTALLVENDORMAN1DIR) \
        $(INST_MAN3DIR) $(DESTINSTALLVENDORMAN3DIR)

[download]

In reply to Re^5: Module packlists vs. vendors by Anonymous Monk
in thread Module packlists vs. vendors by mbethke

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