R help - Apr 2007 - Package loading shows missing libraries in Mac OS X

I've been using R actively for only the past few months under Mac OS  
X, but have found a few situations where I cannot get a package to  
load.  This seems like the same situation reported recently on the  
thread "R-2.4.1 for MacOS X - languageR, acepack, Hmisc":
> > library(Hmisc)
> Error in dyn.load(x, as.logical(local), as.logical(now)) :
> 	unable to load shared library '/Library/Frameworks/R.framework/ 
> Versions/2.4/Resources/library/Hmisc/libs/i386/Hmisc.so':
>   dlopen(/Library/Frameworks/R.framework/Versions/2.4/Resources/ 
> library/Hmisc/libs/i386/Hmisc.so, 6): Library not loaded: /usr/ 
> local/gcc4.0/lib/libgfortran.0.dylib
>   Referenced from: /Library/Frameworks/R.framework/Versions/2.4/ 
> Resources/library/Hmisc/libs/i386/Hmisc.so
>   Reason: image not found
> Error: package/namespace load failed for 'Hmisc'
I searched for and found the library complained about: "libgfortran. 
0.dylib".  Then from the unix terminal I created a link to where  
Hmisc expected it to be located.  Attempting library(Hmisc) again,  
got me past the initial error, but resulted in another library not  
found in a different location:
> > library(Hmisc)
> Error in dyn.load(x, as.logical(local), as.logical(now)) :
> 	unable to load shared library '/Library/Frameworks/R.framework/ 
> Versions/2.4/Resources/library/Hmisc/libs/i386/Hmisc.so':
>   dlopen(/Library/Frameworks/R.framework/Versions/2.4/Resources/ 
> library/Hmisc/libs/i386/Hmisc.so, 6): Library not loaded: /usr/ 
> local/gcc4.0/i686-apple-darwin8/lib/libgcc_s.1.0.dylib
>   Referenced from: /Library/Frameworks/R.framework/Versions/2.4/ 
> Resources/library/Hmisc/libs/i386/Hmisc.so
>   Reason: image not found
> Error: package/namespace load failed for 'Hmisc'
I can find the library named "libgcc_s.1.0.dylib" but I'm not sure
that this is of the i686 flavor which it appears to need or if that  
matters.

Ultimately, it appears that the libraries Hmisc needs are either not  
present or not where Hmisc expects them to be.  I do have the Apple  
Developer Tools installed.  Any suggestions?

Thanks,
-David
> > version
>                _
> platform       i386-apple-darwin8.8.1
> arch           i386
> os             darwin8.8.1
> system         i386, darwin8.8.1
> status
> major          2
> minor          4.1
> year           2006
> month          12
> day            18
> svn rev        40228
> language       R
> version.string R version 2.4.1 (2006-12-18)

----------------------------------
David Daniel
Associate Professor
University Statistics Center
New Mexico State University

ddaniel at nmsu.edu