[comp.windows.x] Sun shared libraries revision level

cheung@titan.sw.mcc.com (Po Cheung) (10/27/90)

In rebuilding X libraries after applying all MIT fixes (up to fix-18)
using Sun shared libraries on a Sun-3 running SunOS 4.0.3, the revision 
level of the shared libraries stays at 4.2.  Should the minor revision
level be raised from 2 to 3 instead?

Thanks,
Po Cheung
cheung@mcc.com

guy@auspex.auspex.com (Guy Harris) (10/31/90)

 >In rebuilding X libraries after applying all MIT fixes (up to fix-18)
 >using Sun shared libraries on a Sun-3 running SunOS 4.0.3, the revision 
 >level of the shared libraries stays at 4.2.  Should the minor revision
 >level be raised from 2 to 3 instead?

Only if the changes make it possible for a program linked against the
patched version of the library to fail if run against the unpatched
version - e.g., if a new routine is added to the library.  The minor
version number is to be bumped whenever an upward-compatible but not
downward-compatible (or maybe it's the other way around) change is made,
and the major version number is to be bumped when an incompatible change
is made.