ldconfig when PACKAGE_BUILDING=YES (and linux ports)

[Kris Kennaway]

On Sat, Aug 04, 2007 at 03:20:49PM +0400, Boris Samorodov wrote:
> On Fri, 3 Aug 2007 19:38:29 -0400 Kris Kennaway wrote:
> > On Sat, Aug 04, 2007 at 02:09:47AM +0400, Boris Samorodov wrote:
> > > On Fri, 03 Aug 2007 23:58:47 +0200 Pav Lucistnik wrote:
> > > > Boris Samorodov p????e v so 04. 08. 2007 v 01:30 +0400:
> > > 
> > > > > Seems that running ldconfig while building a package at package
> > > > > cluster (i.e. when PACKAGE_BUILDING is defined) is quite useless. [1]
> > > > > 
> > > > > To be more specific I'm interested at linux ports. ATM we run linux
> > > > > ldconfig (using linuxulator) _at package building_. Hence to create a
> > > > > package for FC6 port we should change compat.linux.osrelease (which I
> > > > > don't like and try to avoid). If the "ldconfig" stage may be skipped
> > > > > when PACKAGE_BUILDING is defined then things get way too easier both
> > > > > for default kernel linux.osrelease and default linux_base port change.
> > > 
> > > > I don't follow - what is the problem?
> > > 
> > > An FC6 port can't be build (and more specific -- linux-fc6 ldconfig
> > > doesn't run) with current default compat.linux.osrelease=2.4.2. So
> > > this sysctl should be changed to 2.6.16 for package building sake.
> > > When the default compat.linux.osrelease will be switched to 2.6.16 we
> > > will get the other way round problem if we try to build and FC4 port.
> > > 
> > > I don't like the status quo and want to find a way to siplify it.
> 
> > That's a kernel problem, not a ldconfig problem.
> 
> Kris, now I don't follow. Can you explain what did you mean?

ldconfig is just a symptom.  If you make it so ldconfig doesn't run
then you'll just run into the next problem from another 2.6.x binary
being run.  The fix is to get 2.6.16 kernel support good enough so
that it can a) run 2.4 binaries in a backwards compatible mode (this
is required anyway, you need to be able to run both binaries on the
same system), b) be made default.

kris