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qbic2005
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Joined: 11 Nov 2005
Posts: 81
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PostPosted: Fri Feb 05, 2010 3:05 pm    Post subject: create new ebuild or use link to get to lib Reply with quote

Hi

Got a little question here for the ones with some programming experience...

I run mostly gnome stable and that pulls in bluez.
But I also want to get cwiid working and that package pulls in bluez-lib. Which can not exist on the same system with bluez.

If I understand the other posts well, bluez is actually just the new bluez-lib. So there is a big chance that the necessary funtions still exist.
But if I uninstall bluez-lib and pull in bluez, cwiid complains about "libbluetooth.so.2".
Bluez comes with libbluetooth.so.3 ...

So what I did previously if I had such a case, was making a static link toward the new lib, which worked ... almost always. Dirty? probably.

But I was wondering, this is not very nice, wouldn't it be better to recompile the package against the new lib?
If I create a new ebuild, which refers to bluez instead of bluez-lib, could that do it or am I missing a part ;) :?: :?:

I browsed a bit through the obvious parts of the cwiid source and it only refers to bluetooth.h, hci.h and hci-lib.h, which are all part of bluez also.

thanks
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pianosaurus
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Joined: 19 Apr 2004
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PostPosted: Sat Feb 06, 2010 3:49 am    Post subject: Reply with quote

If cwiid is compatible with bluez, compiling against it instead of bluez-lib should be no problem. I don't know how much has changed, but trying it out is pretty easy.

Create a local overlay directory if you don't have one (see man make.conf, /PORTDIR_OVERLAY), create app-misc/cwiid/ inside it and copy the ebuild in there. Modify it, run ebuild cwiid-*.ebuild manifest and re-emerge.

If it works, you should let the overlay-maintainers know, so they can add bluez as an alternative dependency.
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chias
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Joined: 06 Nov 2009
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PostPosted: Sat Feb 13, 2010 12:26 am    Post subject: Reply with quote

I get compile errors... it complains about an undefined reference to hci_remote_name when compiling wmgui
edit: This is after attempting to compile both from tarball and portage overlay
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chias
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Joined: 06 Nov 2009
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PostPosted: Sat Feb 13, 2010 12:37 am    Post subject: Reply with quote

Got it working!

The easiest way is to just download the source tarball, edit libcwiid/bluetooth.c and change line 125 from "hci_remote_name" to "hci_read_remote_name". Then do a ./configure, make, make install.
Important: If you're 64-bit you'll have to "./configure --libdir=/usr/lib64" or it will install fine but fail on run with the error "ImportError: No module named cwiid"

Alternatively, get the portage overlay, edit the ebuilds to use bluez instead of bluez-utils, rebuild the manifests, and include this patch:
http://abstrakraft.org/cwiid/raw-attachment/ticket/74/hci_read.patch
Not exactly sure how you'd go about doing the libdir thing with this method though...

Also, remember to enable UINPUT in your kernel: Device Drivers -> Input Device Support -> Miscellaneous Devices -> User level driver support

Hope that helps :)
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yngwin
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Joined: 19 Dec 2002
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PostPosted: Sat Feb 13, 2010 12:28 pm    Post subject: Reply with quote

chias wrote:
Not exactly sure how you'd go about doing the libdir thing with this method though...

Code:
inherit multilib
...
econf --libdir=/usr/$(get_libdir)

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