Source: nvidia-texture-tools
Severity: normal

Dear Maintainer,

nvidia-texture-tools contains an embedded copy of libsquish:
in src/nvtt/squish

I have recently packaged libsquish, and it is now avilable in the archive:

In doing this I examined all the embedded copies, checking them for
changes, and have merged all the extra features into the Debian
package. Thus it should be straighforward to start using the system
library instead of the embedded copy, without any API changes.

The changes have also been sent upstream and will hopefully appear
in libsquish 1.14 at some point.

The nvidia-texture-tools version was forked around v1.7. It has a
1-character change which does not obviously have a reason: 
"Vec4 m_unweighted[16];" changed to "Vec4 m_unweighted[17];" in

This change has not been included, because it's not in any of the
other versions, and seems odd, so if there really is a reason for
this then then debian package should be updated.

Debian policy 
say that embedded copies should not be used if the library is available in 
Debian, and gives a bit more background.

I am not familiar with the nvidia-texture-tools build system, so have
not attempted to provide a patch as that should be much easier for
you, but of course I'll help if you need some.

The full set of packages affected is:
   - nvidia-texture-tools 1.7 (src/nvtt/squish)
   - 0ad         1.7 (libraries/source/nvtt/src/src/nvtt/squish/)
   - spring      1.10  (rts/lib/squish)
   - openimageio 1.10+ (1.10+metric) (src/dds.imageio/squish)
   - xbmc        1.10+ (1.10+metric/BC45) (lib/libsquish)
   - kodi        1.10+ (1.10+metric/BC45) 
   - mame        1.13+ (BC45) (3rdparty/bgfx/3rdparty/libsquish)

Hope this is useful.


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