An error in docs? (client-only installation)

Greetings!

It is stated in the docs
http://developer.postgresql.org/docs/postgres/install-procedure.html
<quote>
If you want to install only the client applications and interface libraries, then you can use these commands:

gmake -C src/bin install
gmake -C src/interfaces install
gmake -C doc install
</quote>

When I tried to follow these instructions, I found out that
it is necessary to do

gmake -C src/include install

as well... It is impossible to build client applications without those
headers.

The docs have been updated:

<screen>
<userinput>gmake -C src/bin install</>
<userinput>gmake -C src/include install</>
<userinput>gmake -C src/interfaces install</>
<userinput>gmake -C doc install</>
</screen>

-- 
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