gistfile1.txt

-bash-3.00$ gem install eventmachine -- --with-opt-lib=/lib
WARNING:  Installing to ~/.gem since /usr/local/lib/ruby/gems/1.8 and
          /usr/local/bin aren't both writable.
Building native extensions.  This could take a while...
ERROR:  Error installing eventmachine:
        ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb --with-opt-lib=/lib
checking for rb_trap_immediate in ruby.h,rubysig.h... no
checking for rb_thread_blocking_region()... no
checking for inotify_init() in sys/inotify.h... no
checking for __NR_inotify_init in sys/syscall.h... no
checking for writev() in sys/uio.h... no
checking for rb_thread_check_ints()... no
checking for rb_time_new()... no
checking for sys/event.h... no
checking for main() in -lnsl... no
could not find library: nsl
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
        --with-opt-dir
        --without-opt-dir
        --with-opt-include
        --without-opt-include=${opt-dir}/include
        --with-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=/usr/local/bin/ruby
        --with-nsllib
        --without-nsllib


Gem files will remain installed in /export/home/shiva/.gem/ruby/1.8/gems/eventmachine-0.12.10 for inspection.
Results logged to /export/home/shiva/.gem/ruby/1.8/gems/eventmachine-0.12.10/ext/gem_make.out