[pca] Patch pre-requisites

[little help]

I had a quick question about the pre-requisites when installing one patch.
I know pca determines dependence, etc and installs patches in that order.
However, how do you do this for one single patch.   For example - I want to
install
109326-17 : libresolv.so.2, in.named and BIND9 patch
Now libresolv.so.2 has C dependencies.  When I do a full pca check for my
host the C patches come right after the patch for patchadd.  However, there
are about 20+ patches before I get tot he libresolv patch. Are all these
patches dependencies?  I don't see how.  I look at the readme file for the
libresolv patch and do not see anything at all about dependencies.  Is there
a way to check what requirements this patch needs from pca - perhaps a flag,
etc?  Thanks.
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