Installing ruby 1.9.2-p0 on mac os x snow leopard using rvm

[2010-11-10 13:40:01] make 
ld: warning: in main.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dmydln.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dmyencoding.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dmyversion.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in miniprelude.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in array.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in bignum.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in class.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in compar.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in complex.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dir.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dln_find.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in enum.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in enumerator.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in error.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in eval.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in load.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in proc.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in file.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in gc.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in hash.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in inits.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in io.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in marshal.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in math.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in node.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in numeric.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in object.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in pack.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in parse.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in process.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in random.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in range.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in rational.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in re.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regcomp.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regenc.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regerror.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regexec.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regparse.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in regsyntax.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in ruby.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in safe.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in signal.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in sprintf.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in st.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in strftime.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in string.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in struct.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in time.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in transcode.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in util.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in variable.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in compile.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in debug.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in iseq.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in vm.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in vm_dump.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in thread.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in cont.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in ascii.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in us_ascii.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in unicode.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in utf_8.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in newline.o, file was built for i386 which is not the architecture being linked (x86_64)
ld: warning: in dmyext.o, file was built for i386 which is not the architecture being linked (x86_64)
Undefined symbols:
  "_main", referenced from:
      start in crt1.10.6.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [miniruby] Error 1