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Building package to use OpeNDAP libraries

3 messages · Don MacQueen, Simon Urbanek

Don MacQueen
# 
I trying to help someone install a package that uses the OpeNDAP 
libraries (http://www.opendap.org/), and I need to verify a couple of 
things.

We're working with OS X 10.4.6 and R 2.2.1.

The opendap project supplies OS X installers (.dmg files) for the 
libraries, but we have learned that they were built with gcc 4.0.0.

-- 1 --
The current R binary on CRAN was built with gcc_select 3.3 in place 
(or 3.something, at least) ?
(both the powerpc version, and the universal version if installed on 
a powerpc machine?)

-- 2 --
Regardless of any other issues, this compiler version mismatch will 
prevent us from building a working package. Right?

I believe the answers are yes, and yes, and if so I expect the next 
step is to download the opendap sources and build the libraries using 
gcc 3.3.

Thanks
-Don
Simon Urbanek
# 
Don,
On Apr 20, 2006, at 3:17 PM, Don MacQueen wrote:

            

      
      
      
    

        
Yes. This will change for R 2.3.0 (see the nightly builds).

            

      
      
      
    

        
Not necessarily. If OpeNDAP libraries use ABIs that don't differ  
between 3.3. and 4.0 then it should work. Note that you still have to  
compile the R package with gcc 3.x, however the library it is linking  
to doesn't always have to be compiled with gcc 3.x.

Cheers,
Simon

  
  


  


      

    

    

      
      

        


  

        

      Don MacQueen
    

    

      
      #
    

  


  

      
Thanks Simon.

Everything fell into place when I compiled the OPeNDAP libraries from 
source, using gcc 3.3, so in this case a match is necessary.

-Don

        
At 5:00 PM -0400 4/20/06, Simon Urbanek wrote: