i got suck here : [root@www ruby-1.6.8]# make
here is what i got :
gcc -g -O2 -fPIC -rdynamic main.o dmyext.o libruby.a -ldl -lcrypt -lm -o miniruby
gcc -shared -Wl,-soname,libruby.so.1.6 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 -ldl -lcrypt -lm -o libruby.so.1.6.8
extmk.rb:681: [BUG] Segmentation fault
ruby 1.6.8 (2002-12-24) [x86_64-linux]
make: *** [all] Aborted
[root@www ruby-1.6.8]#

is there any suggession ?

this helped me.

“ruby extconf.rb –with-zlib-include=/usr/include –with-zlib-lib=/usr/lib”