[R-SIG-Mac] rgl revisions to allow dual install

[stefano iacus]

Duncan,
I see now. On PPC you should use

    file.exists(system.file("libs/ppc", "aglrgl.so", package ="rgl"))

and, under intel,

    file.exists(system.file("libs/i386", "aglrgl.so", package ="rgl"))

instead of just

    file.exists(system.file("libs", "aglrgl.so", package ="rgl"))

i.e.
    file.exists(system.file(file.path("libs",.Platform$r_arch),  
"aglrgl.so", package ="rgl"))


And yes, you have to explicitly set the DISPLAY var under the shell  
unless you use xterm.

I have only one doubt, which I'm going to verify: if you override the  
DYLD_LIBRARY_PATH var there should be potential problems with tcltk  
which is still x11.

stefano



On 11/dic/06, at 20:49, Duncan Murdoch wrote:

> On 12/10/2006 8:51 PM, stefano iacus wrote:
>> It builds fine on PCC and apparently the two libs are in the
>> installed directory.
>> The only problem is that both on X11 term and on R.app always the
>> X11 .dll is taken, so no AGL for me any more.
>> I don't see any conditionals on .Platform$GUI in the loading of the
>> library though.
>
> It's in the .onLoad function in zzz.R:
>
>    if ( .Platform$OS.type == "unix" ) {
>      unixos <- system("uname",intern=TRUE)
>      if ( unixos == "Darwin" ) {
>        # For MacOS X we have to remove /usr/X11R6/lib from the
> DYLD_LIBRARY_PATH
>        # because it would override Apple's OpenGL framework
>
> Sys.putenv("DYLD_LIBRARY_PATH"=gsub("/usr/X11R6/lib","",Sys.getenv 
> ("DYLD_LIBRARY_PATH")))
>        if ( .Platform$GUI == "AQUA" &&
>             file.exists(system.file("libs", "aglrgl.so", package =
> "rgl"))) {
>          initValue <- 1
>          rgl <<- "aglrgl"
>        }
>      }
>    }
>
> Does the lib get a different name or sit somewhere else on that  
> system?
>   I have the file.exists test in case someone has configured not to
> build the AGL version, but maybe the filename is wrong.  Do you know a
> safe test to see if the lib exists?
>
> On 12/10/2006 8:56 PM, stefano iacus wrote:
>> and, for the standard  shell (i.e. not under xterm), I can open and
>> plot on a  x11() device but during  demo(rgl)
>>
>>> rgl.open()
>> Error in rgl.open() : rgl.open failed
>>> rgl.open
>
> The initialization is currently done in .onLoad, and if it fails, no
> additional attempts are made.  I'll see if it's safe to try again.
>
> By the way, did you manually set DISPLAY before you opened the x11
> device?  I get an error in the standard shell when I try that, but
> Sys.putenv fixes it.
>
> Duncan Murdoch
>
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