Technical Team/Minutes/2012-09-04

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  • Gary O’Neall
  • Bill Schineller
  • Kate Stewart
  • Jack Manbeck
  • Michael Herzog
  • Ed Warnicke
  • Peter Williams
  • Kirsten Newcomer
  • Marshall Clow


  • Re-cap of Linux Con discussions
  • Discussion of recent blog post expressing confusion about SPDX
  • Ed Warnicke proposal / demo of 'Watermarking'

Re-cap of Linux Con discussions

  • Kate: 1.1 spec draft and rdf got in sync, releaseable
  • Fossology intent to provide Agent to produce 1.1 SPDX announced
  • Deferred modeling discussions while at Linux Con
  • Ed W. socialized idea of 'Watermarking' approach

Discussion sparked by recent blog post

Watermarking Proposal / Demo (Ed Warnicke)

  • Source files and their compiled output are the "leaves" of hierarchies of copyrightable 'things', so can SPDX specify a watermarking approach to put licensing information directly in source files?
  • Reqts: Machine-readable, close to leaf, flows through hierarchy
  • Demonstrated for the C language an spdx.h defining a macro SPDX_INFO. Including this header, then compiling results in an introspectable compiled output

Reactions to demo

  • Peter - "ship it"? !
  • Ed: our 'one chance' to get it right with upstream providers, don't rush it
  • Michael: let's decouple the spec from its 'enabling technologies"
  • Issues: concern about the SIZE compiling strings into object code adds to the distros.
  • Let's determine what's 'acceptable' size bloat (none!...) and think about other languages too