[Rd] More on Lazy loading errors building its package in a chroot

[Dirk Eddelbuettel]

I now have the package built in a chroot -- but at the price of setting
'LazyLoad: no' in DESCRIPTION.  

I do not quite understand why that is needed. Can someone else help? I can
provide the following pointers for its-1.0.4

*  The file 'DESCRIPTION' has the Depends on methods, stats and Hmisc. Under 
   Debian Hmisc and acepack get properly loaded as needed to build this.
   
*  A file 'install.R' still exists from the older version. I reckon it can
   be removed, but it doesn't seem to matter either way.
   
*  The file 'NAMESPACE' is there, it contains import(), export(),
   exportClass() and exportMetods() directives.
   
*  The file R/itspkg.r has 
       .onLoad <- function(lib, pkg) require(methods)
       [...]
       as.its.zoo <- function(x) {
         stopifnot(require(its))
         index <- attr(x, "index")
         stopifnot(inherits(index, "POSIXct"))
         attr(x, "index") <- NULL
         its(unclass(x), index)
       }
   and I have the feeling that these may interfere with the LazyLoad
   directive.  But I just don't understand how something can work in 
   session with a controlling terminal, but fail in the chroot'ed batch
   built.  
   
Comments would be highly welcome. But please speak very slowly when it comes
to S4 and LazyLoading matters.  

Thanks, Dirk
 


On Tue, Dec 14, 2004 at 10:17:16PM -0600, Dirk Eddelbuettel wrote:
> Trying to build its_1.0.4 in a chroot environment to update the
> corresponding Debian package, I get 
> 
> 
> * Installing *source* package 'its' ...
> ** R
> ** inst
> ** save image
> Loading required package: Hmisc
> Hmisc library by Frank E Harrell Jr
> 
> Type library(help='Hmisc'), ?Overview, or ?Hmisc.Overview')
> to see overall documentation.
> 
> NOTE:Hmisc no longer redefines [.factor to drop unused levels when
> subsetting.  To get the old behavior of Hmisc type dropUnusedLevels().
> 
> Attaching package 'Hmisc':
> 
> 
>         The following object(s) are masked from package:stats :
> 
>          ecdf
> 		 
> Creating a new generic function for "names" in "its"
> Creating a new generic function for "names<-" in "its"
> Creating a new generic function for "print" in "its"
> Creating a new generic function for "start" in "its"
> Creating a new generic function for "end" in "its"
> Creating a new generic function for "summary" in "its"
> Creating a new generic function for "diff" in "its"
> Creating a new generic function for "union" in "its"
> Creating a new generic function for "intersect" in "its"
> 
> ** preparing package for lazy loading
> Error in loadNamespace(name) : There is no package called 'its'
> Execution halted
> ERROR: lazy loading failed for package 'its'
> make: *** [R_any_arch] Error 1
> pbuilder: Failed autobuilding of package
> 		 
> 
> The package installs fine when built on the command-line. This is somehow
> related to the reduced environment provided in the chroot -- I recall having
> seen (and fixed) the error when other packages where needed during build
> time. Hmisc is installed. Nothing else outside of R-base should be needed.
> 
> I think I am overlooking something simple, but a couple of simple attempts
> didn't get me anywhere.  The chroot isn't a problem per se as several dozen
> CRAN packages get built that way into Debian packages.
> 
> Puzzled,  Dirk
> 
> -- 
> If you don't go with R now, you will someday.
>   -- David Kane on r-sig-finance, 30 Nov 2004
> 
> ______________________________________________
> R-devel at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

-- 
If you don't go with R now, you will someday.
  -- David Kane on r-sig-finance, 30 Nov 2004