If you're running macports and have upgraded from OSX 10.5 to Snow Leopard (10.6), and your build of nodejs 0.1.93 fails, you might have to re-install openssl.  The basic problem is that the dylib that you may have built previously would have been built for the x386 architecture whereas you need it to be built for x86_64.  thankfully, the solution is easy to execute.. simply reinstall openssl!
sudo port install openssl
and then retry your build. here is some snippets from the error that i got to help you find this solution if you're having the same problem: ld: warning: in /opt/local/lib/libssl.dylib, file was built for i386 which is not the architecture being linked (x86_64) ld: warning: in /opt/local/lib/libcrypto.dylib, file was built for i386 which is not the architecture being linked (x86_64) ld: warning: in /opt/local/lib/libz.dylib, file was built for i386 which is not the architecture being linked (x86_64) [snip] ld: symbol(s) not found collect2: ld returned 1 exit status Build failed:  -> task failed (err #1): ... make: *** [all] Error 1