Re: Libtool versioning made easy (was Re: Converting libraries and plugins to use gtk3

[Behdad Esfahbod <behdad behdad org>]

On 06/30/2010 04:26 PM, Adam Jackson wrote:
> On Wed, 2010-06-30 at 15:43 -0400, Behdad Esfahbod wrote:
> 
>> In your src/Makefile.am add "-version-info $(LT_VERSION_INFO)" to your
>> library's LDFLAGS.
> 
> Or you could just do it directly:
> 
> libX11_la_LDFLAGS = -version-number 6:3:0 -no-undefined
> 
> gives you libX11.so.6.3.0.

Using straight major.minor.micro is actually a good idea too.  Maybe we should
do that.  The only difference with my scheme is that my scheme assumes that
individual releases in a devel series all add new interfaces whereas using
major.minor.micro directly assumes that no point releases adds new interfaces
(stable or not).  Both assumptions are wrong, but mine is on the safe side.
The only reason I like your proposal is that I don't think anyone makes any
assumption about minor .so version anyway...

behdad

> libtool very sensibly only really documents -version-info because, in
> this one instance, they chose to implement something so utterly
> orthogonal to any library versioning scheme ever seen in the wild as to
> be unusable, instead of their usual strategy of implementing something
> so lowest-common-denominator as to be unusable.
> 
> - ajax