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FS#608 - why not switch from libungif to giflib?

Attached to Project: CRUX
Opened by Danny Rawlins (Romster) - Saturday, 19 June 2010, 10:41 GMT+2
Last edited by Jose V Beneyto (sepen) - Monday, 22 October 2012, 13:39 GMT+2
Task Type Bug Report
Category ports → core/opt
Status Closed
Assigned To Jose V Beneyto (sepen)
Operating System Linux
Severity Low
Priority Normal
Reported Version 2.6
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Why are you still using libungif when the patent no longer exists on LZW compression algorithm, now you can use giflib.
This task depends upon

Closed by  Jose V Beneyto (sepen)
Monday, 22 October 2012, 13:39 GMT+2
Reason for closing:  Fixed
Additional comments about closing:  Thanks for your reports
Comment by Jose V Beneyto (sepen) - Tuesday, 04 September 2012, 16:07 GMT+2
I attached an updated Pkgfile
   Pkgfile (0.5 KiB)
Comment by Jose V Beneyto (sepen) - Tuesday, 02 October 2012, 23:23 GMT+2
I suggest to remove opt/libungif for opt/giflib but that also requires more changes to dependent ports:

opt/emacs
opt/fontforge
opt/imagemagick
opt/imlib2
contrib/fim
contrib/imlib
contrib/xplanet
contrib/xscreensaver

To minimize the impact we could append that line: 'giflib: libungif' to /var/lib/pkg/prt-get.aliases

And for the future 2.8 iso I attached a patch for setup-helper script

Comments?
   setup-helper.diff (0.4 KiB)
Comment by Juergen Daubert (jue) - Thursday, 04 October 2012, 11:16 GMT+2
I'd suggest to do this only for CRUX 2.8. Note, the addition to setup-helper only makes sense if we ship giflib with our ISO.
Comment by Jose V Beneyto (sepen) - Thursday, 04 October 2012, 13:35 GMT+2
Yeah, you're right, setup-helper is not required since libungif/giflib is not listed in packages.opt, my bad.
And yes, the idea is to do it only for 2.8 branches.
Comment by Jose V Beneyto (sepen) - Saturday, 06 October 2012, 08:58 GMT+2
Ok Juergen, now I see that opt/emacs is not part of 2.8 branches ;D
Comment by Ryan Mullen (rmull) - Friday, 19 October 2012, 17:24 GMT+2
For what it's worth, opt/imlib2 (1.4.5) does not build correctly with rmull/giflib (5.0.1 at the time of this comment):

loader_gif.c: In function 'load':
loader_gif.c:39:4: error: too few arguments to function 'DGifOpenFileHandle'
/usr/include/gif_lib.h:178:14: note: declared here
Comment by Jose V Beneyto (sepen) - Monday, 22 October 2012, 13:39 GMT+2
After reading http://giflib.sourceforge.net/gif_lib.html seems that DGifOpenFileHandle requires ErrorCode to be passed as argument.
To build I added a small fix to imlib2/Pkgfile[1]

[1] http://crux.nu/gitweb/?p=ports/opt.git;a=commitdiff;h=b2072c98f4a43e1d942e194d86a93e5935dbf36a

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