title: Problem installing Ruby 1.9.2 with RVM on OSX 10.4
body: <p>I successfully installed Ruby 1.8.7 with RVM on OS 10.4. However, when I try to install 1.9.2,
  I get the following error:
  make: <em>*</em> [libruby.1.9.1.dylib] Error 1</p>
  
  <p>Installation:</p>
  
  <pre><code>[qm]$ rvm install 1.9.2  
  /Users/qm/.rvm/rubies/ruby-1.9.2-p136, this may take a while depending on your cpu(s)...
  %  
  ruby-1.9.2-p136 - #fetching %  
  ruby-1.9.2-p136 - #downloading ruby-1.9.2-p136, this may take a while depending on your connection...%  
  ruby-1.9.2-p136 - #extracting ruby-1.9.2-p136 to /Users/qm/.rvm/src/ruby-1.9.2-p136%  
  ruby-1.9.2-p136 - #extracted to /Users/qm/.rvm/src/ruby-1.9.2-p136%  
  ruby-1.9.2-p136 - #configuring %  
  ruby-1.9.2-p136 - #compiling %  
  Error running 'make ', please read /Users/qm/.rvm/log/ruby-1.9.2-p136/make.log%  
  There has been an error while running make. Halting the installation.%  
  </code></pre>
  
  <p>The end of the /Users/qm/.rvm/log/ruby-1.9.2-p136/make.log:</p>
  
  <pre><code>gcc -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe -I. -I.ext/include/powerpc-darwin8.11.0 -I./include -I. -DRUBY_EXPORT -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -o prelude.o -c prelude.c  
  ar rcu libruby.1.9.1-static.a dln.o encoding.o version.o array.o bignum.o class.o compar.o complex.o dir.o dln_find.o enum.o enumerator.o error.o eval.o load.o proc.o file.o gc.o hash.o inits.o io.o marshal.o math.o node.o numeric.o object.o pack.o parse.o process.o random.o range.o rational.o re.o regcomp.o regenc.o regerror.o regexec.o regparse.o regsyntax.o ruby.o safe.o signal.o sprintf.o st.o strftime.o string.o struct.o time.o transcode.o util.o variable.o compile.o debug.o iseq.o vm.o vm_dump.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline.o alloca.o prelude.o dmyext.o  
  gcc -dynamiclib -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace -install_name /Users/qm/.rvm/rubies/ruby-1.9.2-p136/lib/libruby.1.9.1.dylib -current_version 1.9.1 -compatibility_version 1.9.1  -Wl,-u,_objc_msgSend    dln.o encoding.o version.o array.o bignum.o class.o compar.o complex.o dir.o dln_find.o enum.o enumerator.o error.o eval.o load.o proc.o file.o gc.o hash.o inits.o io.o marshal.o math.o node.o numeric.o object.o pack.o parse.o process.o random.o range.o rational.o re.o regcomp.o regenc.o regerror.o regexec.o regparse.o regsyntax.o ruby.o safe.o signal.o sprintf.o st.o strftime.o string.o struct.o time.o transcode.o util.o variable.o compile.o debug.o iseq.o vm.o vm_dump.o thread.o cont.o ascii.o us_ascii.o unicode.o utf_8.o newline.o alloca.o prelude.o dmyext.o  -o libruby.1.9.1.dylib  
  ld: flag: -undefined dynamic_lookup can't be used with MACOSX_DEPLOYMENT_TARGET environment variable set to: 10.1  
  /usr/libexec/gcc/powerpc-apple-darwin8/4.0.1/libtool: internal link edit command failed  
  make: *** [libruby.1.9.1.dylib] Error 1  
  </code></pre>
  
  <p>Thanks for any help/suggestions!</p>