ubygems missing?

I've never been one for compiling code, so I bet this is a simple fix, but 
this is what I get when I try to compile Ruby 1.8.2 pre 2.

Suggestion?

gcc -g -O2   -I. -I.  -c variable.c
gcc -g -O2   -I. -I.  -c version.c
gcc -g -O2   -I. -I.  -c dmyext.c
ar rcu libruby-static.a array.o bignum.o class.o compar.o dir.o dln.o enum.o 
error.o eval.o file.o gc.o hash.o inits.o io.o marshal.o math.o numeric.o 
object.o pack.o parse.o process.o prec.o random.o range.o re.o regex.o ruby.o 
signal.o sprintf.o st.o string.o struct.o time.o util.o variable.o version.o  
dmyext.o
gcc -g -O2   -I. -I.  -c main.c
gcc -g -O2    -rdynamic  main.o dmyext.o libruby-static.a -ldl -lcrypt -lm   
-o miniruby
./miniruby: No such file to load -- ubygems (LoadError)
make: *** [rbconfig.rb] Error 1

Thanks,
T.