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[HOWTO] Build a functioning qsampler [OBSOLETE]
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aCOSwt
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PostPosted: Wed Apr 18, 2012 2:12 pm    Post subject: [HOWTO] Build a functioning qsampler [OBSOLETE] Reply with quote

1/ NEED

Gentoo Portage tree gets an ebuild for qsampler.
However, it is broken since the 0.2.2 version crashes on startup when built with qt-gui > 4.5 and qt-gui-4.5 is no longer in portage tree.
Apparently LinuxSampler no longer produces official releases on tarballs but requests we directly take the source code from an svn repository.
I additionally understand from the Gentoo Dev Manual that Subversion ebuilds should not generally be added to the tree so there is just no way to suggest any ebuild update...

So... let's do this the quick & dirty mode.

2/ BUILD YOUR OWN SOURCE PACKAGE

2.0/ Install Subversion or skip to 2.1 if you already get Subversion installed on your system

Emerging with default use flags, that is : [apache2, berkdb, ctypes-python, debug, doc, +dso, emacs, extras, gnome-keyring, java, kde, nls, perl, python, ruby, sasl, vim-syntax, +webdav-neon, webdav-serf, bash-completion, java] will fit our purpose, so you can simply :
Code:
# emerge subversion


2.1/ Check the project's repository

Under console, set your working dir according to your preferences then fire
Code:
# svn co https://svn.linuxsampler.org/svn/qsampler/trunk qsampler

This should result in a new directory entry named qsampler under which you should find the image of the repository.

2.2/ Build your source distribution

At the time of this post, latest qsampler directory revision is 2342. So let's extract this version under a new directory named qsampler-2432
Code:
# svn export qsampler qsampler-2432

At this stage, the configure script will be missing, no trouble, you just need to generate it :
Code:
# cd qsampler-2432
# make -f Makefile.svn


2.3/ Pack the source distribution

Using your preferred archiver, make a tarball of the qsampler-2432 directory, you can also just :
Code:
# cd ..
# tar -czf qsampler-2432.tar.gz qsampler-2432

Then put the result in your portage distfile directory with appropriate owner & group. Assuming all these are default :
Code:
# mv qsampler-2432.tar.gz /usr/portage/distfiles
# chown portage /usr/portage/distfiles/qsampler-2432.tar.gz
# chgrp portage /usr/portage/distfiles/qsampler-2432.tar.gz


3/ ORGANIZE APPROPRIATE PORTAGE'S ENTRIES

Fortunately the existing ebuild for qsampler 0.2.2 can cope with our new source distribution, so, basically, we will just copy it to our local overlay.
Assuming it is located in /usr/local/portage, if not, simply adapt to the value of your $PORTDIR_OVERLAY
Code:
# cd /usr/local/portage

Check if you already get a media-sound directory, if not, create it :
Code:
# mkdir media-sound

Then, assuming your Gentoo portage tree is located in /usr/portage, if not simply adapt to the value of your $PORTDIR
Code:
# cp -r /usr/portage/media-sound/qsampler media-sound
# chown -R portage media-sound
# chgrp -R portage media-sound
# cd media-sound/qsampler

Rename the ebuild :
Code:
mv qsampler-0.2.2.ebuild qsampler-2432.ebuild

If you named your tarball exactly following the instructions above, then that should suffice.
If not then edit the ebuild and adapt the SRC_URI variable accordingly.
Check miscellaneous QA thingies and create the Manifest :
Code:
# repoman manifest


That's it ! you can now
Code:
# emerge qsampler
and...

ENJOY ! 8)

Thanks to : steveL original idea about synfig and DaggyStyle for his comment.
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Last edited by aCOSwt on Wed Jul 04, 2012 10:05 am; edited 1 time in total
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yngwin
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PostPosted: Wed Jul 04, 2012 9:32 am    Post subject: Reply with quote

There is now an updated snapshot ebuild in the portage tree.
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aCOSwt
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PostPosted: Wed Jul 04, 2012 10:04 am    Post subject: Reply with quote

Yes indeed and thank you for this, yngwin.
I flag this thread obsolete.
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