I currently have 1.8.6-20080810 installed, and I'm trying to upgrade
to 20090201.  After a few minutes of compiling, the installation fails
with this message:

gcc -g -O2 -pipe -fno-common  -DRUBY_EXPORT  -I. -I.   -c main.c
gcc -g -O2 -pipe -fno-common  -DRUBY_EXPORT  -I. -I.   -c dmydln.c
gcc -g -O2 -pipe -fno-common  -DRUBY_EXPORT  -L.    main.o dmydln.o
libruby-static.a -Wl,-rpath,/opt/ruby-enterprise-1.8.6-20090201/lib -L/
opt/ruby-enterprise-1.8.6-20090201/lib -ltcmalloc_minimal  -
lsystem_allocator -ldl -lobjc   -o miniruby
/usr/bin/ld: unknown flag: -rpath
collect2: ld returned 1 exit status
make: *** [miniruby] Error 1

Can anyone suggest a solution?