[Rd] libgfortran misplaced in Mac OS X R install (PR#14226)

[tbrick at virginia.edu]

Full_Name: Timothy Brick
Version: 2.10
OS: Mac OS X (seen on both 10.6 and 10.5)
Submission from: (NULL) (63.255.24.5)


When using install.packages in R on Mac OS X, packages that require gfortran
throws an error (Example below from installation of OpenMx package):

Loading required package: OpenMx
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared library
'/Library/Frameworks/R.framework/Resources/library/OpenMx/libs/i386/OpenMx.so':
dlopen(/Library/Frameworks/R.framework/Resources/library/OpenMx/libs/i386/OpenMx.so,
6): Library not loaded: /usr/local/lib/libgfortran.2.dylib
Referenced from: /Library/Frameworks/R.framework/Resources/library/OpenMx/libs/i386/OpenMx.so
Reason: image not found

libgfortran.2.dylib does exist, but in
/Library/Frameworks/R.framework/Versions/2.10/Resouces/lib/libgfortran.2.dylib
(or /2.9/, depending on version installed).

A workaround at present involves creating a symbolic link from the above file to
/usr/local/lib/libgfortran.2.dylib, however this requires sudo access and is
confusing for novice users.

There is more discussion of this bug as it relates to OpenMx at:
http://openmx.psyc.virginia.edu/thread/316

Posts on other forums indicate a similar issue with other packages including
vegan and lme4:
http://r-forge.r-project.org/forum/forum.php?thread_id=728&forum_id=194
https://stat.ethz.ch/pipermail/r-sig-mac/2009-May/006210.html