Prefix development quiz
$Revision: 1.6 $ - $Date: 2008/04/26 08:19:03 $
Answer in whatever length necessary for completeness.  Review
documentation.  Consult your mentor if you're unable to locate answers.


*** Organisational structure questions

1. What is Gentoo/Alt, and what is Gentoo Prefix?  How do they relate to
   each other, and what is their status within Gentoo?
2. What are the sub projects of Gentoo/Alt, and for each of them, what
   are they about?


*** Ebuild technical/policy questions

1. You import an ebuild from the main tree into the prefix tree.  What
   are the proper steps to take to add this ebuild?
2. You are on platform ppc-aix and want to install XYZ, which is not
   keyworded.  How do you proceed?
3. Compilation on sparc-solaris fails because of configure flag
   --enable-somefeature.  What are you going to do if:
 (a) the --enable-somefeature was inserted via a use_enable call
 (b) the --enable-somefeature is hard coded in the ebuild
 (c) somefeature will never work on Solaris, because it's Linux specific
4. Package Y has a configure script that's just being run by econf.
   You just added Y and now try to install it.  What do you watch
   for?
5. configure for package Z says "checking for libc... /lib/libc.so.6"
   how do you proceed?
6. In an overlay, a user has added an ebuild which contains a line like
   this:
     use userland_Darwin && epatch "${FILESDIR}"/${P}-darwin.patch
   What would you prefer to do differently when you see such construct?
7. A user comes up with a new platform called ppc-ps3, a PlayStation
   running Yellow Dog Linux 5.0.  What would you do to support this user
   in Prefix?
8. You're creating an ebuild.  Unfortunately, the ebuild's 'make install'
   target causes "double prefix" or "outside prefix" QA errors.  What is
   the best course of action to take to have a clean, straightforward
   ebuild?
9. You made a little ebuild fix/change, and want to commit it.  How do
   you proceed?  What would you do if you were *not* in Prefix?  And
   what if the package is not in the regular Gentoo tree?
10.You wish to mark an ebuild "stable", taking it out of ~ARCH
   KEYWORDS.  It's a library.  What steps should be taken to do so?
11.You run repoman and it complains like this:
     x11-libs/libfontenc/libfontenc-1.0.4.ebuild: Copyright header
     Error.  Possibly date related.
   What is your course of action?
12.You just fixed an issue in an ebuild where the build system would
   pick a library from the host system instead of the Prefix.  You
   rev-bump the ebuild for this reason, as it is an important fix.  How
   do you proceed?


*** Prefix and Regular Gentoo

1. An ebuild in the prefix tree is out of date, how do you update it?
2. You just imported an ebuild which doesn't quote all occurrences of $D
   ($ED), how do you proceed?
3. In an imported ebuild, a case statement needs an extra item for one
   or more prefix-archs, will you contact the ebuild maintainer about
   this?


*** Prefix intricacies --- the real work

1. Which variables are specific to Prefix?  What does each of them
   represent?  How can you construct them?
2. An ebuild in the main tree does
    emake DESTDIR="${D}" somedir="${D}/somedir" otherdir="/other" install
   what would you change to make it correct in Prefix?
3. Same question for
    insinto /usr/bin
4. A configure scripts checks for gawk and finds /usr/bin/gawk, how do
   you proceed?  What if it checks for a specific program via a
   --with-program flag?
5. A package installs objects or libraries that depend on other shared
   libraries.  What do you check?  What if the package installs some
   scripts?
6. You fire up $EDITOR which you just emerged, and notice that you get
   different colours than $EDITOR in regular Gentoo.  What went probably
   wrong?
7. References to dynamic libraries in Prefix are sort of "fixed" to find
   the prefix libraries.  Why is this done?
8. An eapify-ed ebuild contains if [ ${EROOT} = "/" ], is this correct?


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