Below my signature is an illustration of how I fixed this bug.
(First, of course, I renamed the "R" file to "R-orig".)
Dan E. Kelley, Assoc. Prof. phone:(902)494-1694
Dept. Oceanography fax:(902)494-2885
Dalhousie University mailto:Dan.Kelley at Dal.CA
Halifax, NS, Canada B3H 4J1 http://www.phys.ocean.dal.ca/~kelley/
Kelley_Dan.html
$ diff -Naur /Library/Frameworks/R.framework/Resources/bin/R /Library/
Frameworks/R.framework/Resources/bin/R-orig
--- /Library/Frameworks/R.framework/Resources/bin/R 2006-05-19
19:08:56.000000000 -0300
+++ /Library/Frameworks/R.framework/Resources/bin/R-orig
2006-05-19 19:08:58.000000000 -0300
@@ -20,8 +20,7 @@
# This script is shared by parallel installs, so nothing in it should
# depend on the sub-architecture except the default here.
#=== BEGIN CRAN CHANGES ==-R_ARCH=/`arch`
-export R_ARCH
+: ${R_ARCH=/`arch`}
PATH=/usr/local/gcc4.0/bin:$PATH
export PATH
#==== END CRAN CHANGES ====