On Wed, Jan 16, 2019 at 08:51:27AM -0600, Richard Owlett wrote: > On 01/16/2019 07:58 AM, songbird wrote: > > Richard Owlett wrote: > > > > > I'm running Stretch and have just installed Tcl from repository. > > > Synaptic reports the installed version is 8.6.6+dfsg-1+b1 . > > > The current upstream version is 8.6.9 . > > > > > > I don't understand what "+dfsg-1+b1" is telling me. > > > Where is that numbering scheme described? > > > > > > My goal is to understand (from upstream docs) how what I have installed > > > differs from the current upstream version. > > > > if you want to know what is different in any > > debian package you can download the source code > > package and look at the patches it applies. > > > > IIUC "dfsg" tells me that Debian chose a different means to the same > functional end (User's POV) than how upstream accomplished it. > Sort of. The reason for a "dfsg" repack of the upstream source is usually to remove some components that may not be permitted to distribute. These might include binary blobs which cannot be generated from source, non-free documentation (some protocol libraries include copies of the RFCs they implement and those RFCs are sometimes not freely redistributable).
I have yet to encounter a "dfsg" repack that changes the functionality of the package, though. So, in that regard your statement is correct. Regards, -Roberto -- Roberto C. Sánchez