[Buildroot] [PATCH] snmppp: extract license text from source files

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, Luca, All,

On 2015-07-21 21:54 +0200, Thomas Petazzoni spake thusly:
> On Tue, 21 Jul 2015 18:29:44 +0200, Luca Ceresoli wrote:
> > There is no proper license file in the SNMP++ tarballs, so let's
> > extract it from a source file instead of copying it entirely.
> > 
> > Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
> > ---
> >  package/snmppp/snmppp.mk | 8 +++++++-
> >  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> In many other packages we are using a complete source file as the
> license text. Should we switch to the solution you're proposing instead?
> Another possibility is to do:
> 
> <pkg>_LICENSE_FILES = src/v3.cpp:1:50
> 
> To tell the package infra to extract the text from lines 1 to 50. But
> we would never notice when the lines no longer match.
> 
> I'd like to have a general agreement on this before going further with
> your patch.

My point of view in the case there is no license file in the package:

 1) we should not regenerate a file, neither manually nor automatically:
    - the automatic part (i.e. in the infra) can be easily foiled when a
      package is updated,
    - the manual part (like suggested by Luca) can also, but to a lower
      extent, be broken on updates;

 2) if we refer to a file, it should be an existing file like a source
    file.

But all-in-all, I believe we should not refer to a license file if
there's none in the package.

Regards,
Yann E. MORIN.

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