Re: Some Question about License

Dear Hongli Lai,

  Thank your for you help, We will read it more
careful. Why we think JPEG under the GPL/LGPL. Please
see this:

In ansi2knr.c:
"Everyone is granted permission to copy, modify and
redistribute ansi2knr, but only under the conditions
described in the GPL.  A copy of this license is
supposed to have been given to you along with ansi2knr
so you can know your rights and responsibilities.  It
should be in a file named COPYLEFT. [In the IJG
distribution, the GPL appears below, not in a separate
file.] Among other things, the copyright notice and
this notice must be preserved on all copies.
We explicitly state here what we believe is already
implied by the GPL: if the ansi2knr program is
distributed as a separate set of sources and a
separate executable file which are aggregated on a
storage medium together with another program, this in
itself does not bring the other program under the GPL,
nor does the mere fact that such a program or the
procedures for constructing it invoke the ansi2knr
executable bring any other part of the program under
the GPL."

    Could you give us other advise? (We will see the
License of Fedora RPM "JPEG")

    License Question is a trouble for the system
development. So we must careful.

Thank you.

--- Hongli Lai <hongli plan99 net> wrote:

> Zhan Zhaohua wrote:
> > Dear:
> > 
> >     Our organization is planning a big project
> which
> > is a Linux-Embedded system and will be sold as
> > products in the market.
> >     Through our investigation, We want to use Gtk+
> at
> > our system. But when we investigate the license of
> > gtk+ we met some trouble.
> > 
> >     We know the when we compiling the GTK+, we
> need
> > those sofeware which record at
> > "";
> >    They are:
> >        1. pkg-config
> >        2. TIFF
> >        3. Libpng
> >        4. JPEG
> >        5. cairo
> >        6. FreeType
> >        7. libiconv
> >        8. gettext
> >        9. Glib
> >        10. Pango
> >        11. ATK 
> > 
> >    So which is necessary for the Gtk usage? 
> pkg-config is only required for building GTK (and
> dependencies) from 
> source. Cairo is only required for GTK 2.8 - you can
> use earlier 
> versions of GTK if you don't want Cairo.
> Glib (utility library), ATK (accessibility) and
> Pango (font system) are 
> required. I'm not sure whether the other
> dependencies can be optional.
> >       4. GPL/LGPL 
> libjpeg is not GPL, but instead uses its own license
> (the Fedora RPM 
> calls it "redistributable"). You should read it
> yourself by downloading 
> jpegsrc.v6b.tar.gz at
> See the "LEGAL ISSUES" section of the README file.
> And you may want to read the GPL FAQ: 
> That page also answers a few questions about the
> The LGPL boils down to something like this: you can
> dynamically link to 
> LGPL libraries, and you can distribute LGPL
> libraries with your 
> (proprietary) application, but you must also provide
> the source code of 
> the LGPL libraries.
> I'm not a lawyer though.

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