[R-SIG-Mac] compilation failed for package Design

[Christof Bigler]

When trying to install the Design package, I get compilation errors:
[installing from the X11/Darwin R 1.8.1 version]

 > install.packages("Design")
...
* Installing *source* package 'Design' ...
** libs
g77   -fno-common  -g -O2 -c lrmfit.f -o lrmfit.o
g77   -fno-common  -g -O2 -c mlmats.f -o mlmats.o
g77   -fno-common  -g -O2 -c robcovf.f -o robcovf.o
gcc -bundle -flat_namespace -undefined suppress -L/usr/local/lib -o 
Design.so lrmfit.o mlmats.o robcovf.o  -L/usr/local/lib 
-L/usr/local/lib/gcc/powerpc-apple-darwin6.6/3.4 
-L/usr/local/lib/gcc/powerpc-apple-darwin6.6/3.4/../../.. -lfrtbegin 
-lg2c -lSystem -lcc_dynamic 
-L/Applications/StartR.app/RAqua.app/Contents/bin -lR
ld: warning -L: directory name 
(/usr/local/lib/gcc/powerpc-apple-darwin6.6/3.4) does not exist
ld: warning -L: directory name 
(/usr/local/lib/gcc/powerpc-apple-darwin6.6/3.4/../../..) does not 
exist
ld: can't locate file for: -lfrtbegin
make: *** [Design.so] Error 1
ERROR: compilation failed for package 'Design'

As it says, there is no directory 
/usr/local/lib/gcc/powerpc-apple-darwin6.6/3.4, but I have one 
installed from fink: /sw/lib/gcc/powerpc-apple-darwin6.5/3.4

Thanks for your advice!
Christof