Re: Build Question

[Susanna Jacobson <SRJacobson@lbl.gov>]

In VxWorks 5.2 and previous, there was an unsupported tool called 'shadow', a 
shell script that would set up a local directory structure with each file 
replaced by a symbolic link to the one in the dir being shadowed.  It was 
written by Roger Rohrbach to do exactly what David Dudley needs to do.  I don't 
know right off hand how someone would obtain it other than from an ancient 
VxWorks distribution.

	Susanna

Andrew Johnson wrote:
...
> You might be able to use some kind of overlay filesystem to provide the local 
> writable directories; Linux has this capability, and I believe Solaris does 
> too but I don't know how to set one up.
>
> > > > I'm building for 3 different architectures, and I'd like to put the
> > > > EPICS source on a single (hopefully!) write protected NFS server, and
> > > > link to it when I need access to build, but would rather not have the
> > > > client machine writing directories on the server if I can get away with
> > > > it.
>
> Unfortunately we didn't design the EPICS build system for that particular 
> model; the model we *did* design for is the one where your install 
> directories are elsewhere, but in our model the build hosts have to be able 
> to write to the source filesystem.  If you don't want to allow writes to the 
> NFS filesystem it might be simpler to have three separate copies of the 
> source code (which you could copy or rsync off the NFS server).
>
> - Andrew

--
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Susanna Jacobson                MS 7-222
SRJacobson@LBL.Gov              Lawrence Berkeley National Laboratory
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