[R-SIG-Mac] problem installing binary package with install.packages

[Kjell Konis]

There seems to be a bug when using install.packages to install a local  
binary package. Installing the package using R CMD INSTALL in a shell  
works fine.

 > file.exists("/u/smat/konis/Documents/Projects/RHugin_0.5-3_R_i386- 
apple-darwin8.11.1.tar.gz")
[1] TRUE

 > install.packages("/u/smat/konis/Documents/Projects/ 
RHugin_0.5-3_R_i386-apple-darwin8.11.1.tar.gz", repos = NULL)
Avis dans install.packages("/u/smat/konis/Documents/Projects/ 
RHugin_0.5-3_R_i386-apple-darwin8.11.1.tar.gz",  :
   l'argument 'lib' manque : '/u/smat/konis/Library/R/2.8/library' est  
utilisé
Erreur dans gzfile(file, "r") : impossible d'ouvrir la connexion
De plus : Warning message:
In gzfile(file, "r") :
   impossible d'ouvrir le fichier compressé 'RHugin_0.5-3_R_i386-apple- 
darwin8.11.1.tar.gz/DESCRIPTION', cause probable : 'No such file or  
directory'

 > Sys.info()
                                                                                        sysname
                                                                                       "Darwin 
"
                                                                                        release
                                                                                        "9.5.0 
"
                                                                                        version
"Darwin Kernel Version 9.5.0: Wed Sep  3 11:29:43 PDT 2008;  
root:xnu-1228.7.58~1/RELEASE_I386"
                                                                                       nodename
                                                                             "imamac05 
.epfl.ch"
                                                                                        machine
                                                                                         "i386 
"
                                                                                          login
                                                                                        "konis 
"
                                                                                           user
                                                                                        "konis 
"

 > version
                _
platform       i386-apple-darwin8.11.1
arch           i386
os             darwin8.11.1
system         i386, darwin8.11.1
status
major          2
minor          8.0
year           2008
month          10
day            20
svn rev        46754
language       R
version.string R version 2.8.0 (2008-10-20)