On 7/12/2007 1:00 PM, [EMAIL PROTECTED] wrote: > I would like to create a binary package for Windows which when > installed will give the user an option of whether to install > one version or another. > > Here is the problem, I have a package 'FAME' that can run > in two different modes on Windows. An old mode that uses > R to connect to a remote linux machine and a new way that > uses a locally installed database. > > I would allow this decision to be made at run time, but > the DLL in the later case depends upon the database's DLL > being on the Windows machine. A runtime solution would > require at least one extra level of dynamic loading. > > So I would like something like this to happen: > the zip file contains fame-local.dll and fame-remote.dll > when the user selects 'install packages from a zip file' > the user should be given the option of which DLL > should be renamed to 'fame.dll'. > > Is this possible?? > > If so, how would I do it?
I don't think it's possible: installing from a .zip file basically just copies the files to the system, it doesn't execute the code. It would be possible to do this if installing from a source package (just build one DLL), or you could install both and delay the decision until you attach the package: there are hooks to execute code when a package is loaded. > If not, then are there an recommendations for a solution? > An alternative I can try is to have 2 separate packages, > 'fame' and 'fame-remote'. I'd do it through a load hook. The rgl package does this when running on a Mac, because it's not until load time that it knows if the user is using X11 or Aqua. See the .onLoad function in zzz.R for details. Duncan Murdoch ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
