chcp 936

require 'iconv' 
cov = Iconv.new( 'gbk', 'utf-8')   
puts cov.iconv("北京奥运会!")

=== OpenSSL for Ruby configurator === 
=== Checking for system dependent stuff... === 
checking for t_open() in -lnsl... no 
checking for socket() in -lsocket... no 
checking for assert.h... yes 
=== Checking for required stuff... === 
checking for openssl/ssl.h... no 
=== Checking for required stuff failed. === 
Makefile wasn't created. Fix the errors above.

ruby extconf.rb --with-openssl-include=/usr/local/ssl/include/ --with-openssl-lib=/usr/local/ssl/lib

~/sources/ruby-1.8.7-p174/ext/openssl$ sudo make

gcc -shared -o openssl.so ossl_x509.o ossl_x509cert.o ossl_x509crl.o ossl_pkcs7.o ossl_cipher.o ossl_pkey_dh.o ossl_ssl_session.o ossl_x509attr.o ossl_x509ext.o ossl_ocsp.o ossl_asn1.o ossl_x509name.o ossl_x509revoked.o ossl_rand.o ossl_pkcs12.o ossl_x509store.o ossl_ssl.o ossl.o ossl_digest.o ossl_config.o ossl_pkcs5.o ossl_bio.o ossl_pkey_dsa.o ossl_pkey.o ossl_x509req.o ossl_pkey_ec.o ossl_hmac.o openssl_missing.o ossl_ns_spki.o ossl_pkey_rsa.o ossl_engine.o ossl_bn.o -L. -L/usr/local/ruby/lib -Wl,-R/usr/local/ruby/lib -L/usr/local/ssl/lib -Wl,-R/usr/local/ssl/lib -L. -rdynamic -Wl,-export-dynamic  -lssl -lcrypto -lrt -ldl -lcrypt -lm  -lc

/usr/bin/ld: /usr/local/ssl/lib/libssl.a(s2_meth.o): relocation R_X86_64_32 against `a local symbol'

 can not be used when making a shared object; recompile with -fPIC

/usr/local/ssl/lib/libssl.a: could not read symbols: Bad value

collect2: ld returned 1 exit status

make: *** [openssl.so] Error 1

.confile -fPIC