[Mageia-dev] Utter frustration

Fri Nov 30 22:16:51 CET 2012

Op vrijdag 30 november 2012 12:59:25 schreef Anne Wilson:
+> On 30/11/12 12:26, Frank Griffin wrote:
+> > On 11/30/2012 07:13 AM, Anne Wilson wrote:
+> >> Before doing all that, can you explain the significance of the
+> >> suffixes here?
+> >> 
+> >> ls /usr/lib/ | grep powerdevil
+> >> libpowerdevilconfigcommonprivate.so.4@
+> >> libpowerdevilconfigcommonprivate.so.4.10.0*
+> >> libpowerdevilcore.so.0@ libpowerdevilcore.so.0.1.0*
+> >> libpowerdevilui.so.4@ libpowerdevilui.so.4.10.0*
+> > 
+> > Library naming conventions use several, actual version, e. g.
+> > 4.10.0, major version, e. g. 4, and a generic name, e. g.
+> > libxxx.so.  The last two are usually symlinked to the first.
+> > 
+> > The major version usually signals an ABI difference or some other
+> > major difference, e. g. new function, from the previous version.
+> > The actual version changes whenever any change is made.  Developers
+> > use the major version if their code is dependent on that major
+> > version, but just use the generic name if any version will do.
+> > 
+> > In this way, the majority of packages using the library just ask
+> > for libxxx.so, and don't have to be rebuilt or have their makefiles
+> > or spec modified when the library changes.  A few packages, which
+> > are dependent on a specific version, ask for libxxx.so.N (or
+> > higher), and these have to be changed when the major version they
+> > require is released.  A very very few packages are dependent on the
+> > actual version, and these may have to change more often.
+> 
+> I assume the starred ones are actually in use - what's the
+> significance of '@'?  I'm not sure I've really understood this.
+
+it's just bash that adds this:
+* => executable
+@ => symlink
+