I think that doc needs updating; with mod_perl 2.0.2, at least, the write_pm method of ModPerl::WrapXS generates a use APR (); line for every APR::* module.

Is it just APR::UUID, or do any of the APR::* modules (that can be used outside of mod_perl) lead to such a problem? You might try running the apr-ext tests to see if these expose any problem; this can be done with an installed mod_perl by going into the mod_perl_src/t/ subdirectory and doing, for example,

perl -T -Ilib apr-ext/uuid.t
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