[英]Installing gem pg for PostgreSQL, openssl libraries
我正在使用RVM與ruby 2.0.0。 當我嘗試為PostgreSQL安裝pg gem時,我得到以下響應。
寶石安裝pg
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-2.0.0-p0/bin/ruby extconf.rb
checking for pg_config... yes
Using config values from /usr/bin/pg_config
checking for libpq-fe.h... yes
checking for libpq/libpq-fs.h... yes
checking for pg_config_manual.h... yes
checking for PQconnectdb() in -lpq... no
checking for PQconnectdb() in -llibpq... no
checking for PQconnectdb() in -lms/libpq... no
Can't find the PostgreSQL client library (libpq)
*** 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
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/usr/local/rvm/rubies/ruby-2.0.0-p0/bin/ruby
--with-pg
--without-pg
--with-pg-dir
--without-pg-dir
--with-pg-include
--without-pg-include=${pg-dir}/include
--with-pg-lib
--without-pg-lib=${pg-dir}/
--with-pg-config
--without-pg-config
--with-pg_config
--without-pg_config
--with-pqlib
--without-pqlib
--with-libpqlib
--without-libpqlib
--with-ms/libpqlib
--without-ms/libpqlib
Gem files will remain installed in /usr/local/rvm/gems/ruby-2.0.0-p0/gems/pg-0.14.1 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.0.0-p0/gems/pg-0.14.1/ext/gem_make.out
試圖谷歌為它,顯然問題是OpenSSL庫,因為在mkmf.log輸出是
have_library: checking for PQconnectdb() in -lpq... -----------------$
"gcc -o conftest -I/usr/local/rvm/rubies/ruby-2.0.0-p0/include/ruby-2$
conftest.c: In function 't':
conftest.c:8:32: warning: variable 'p' set but not used [-Wunused-but$
/usr/lib/libpq.so: undefined reference to `SSL_get_error@OPENSSL_1.0.$
/usr/lib/libpq.so: undefined reference to `SSL_get_peer_certificate@O$
/usr/lib/libpq.so: undefined reference to `SSL_CTX_load_verify_locati$
/usr/lib/libpq.so: undefined reference to `SSL_set_ex_data@OPENSSL_1.$
/usr/lib/libpq.so: undefined reference to `SSL_use_certificate_file@O$
/usr/lib/libpq.so: undefined reference to `ENGINE_free@OPENSSL_1.0.0'
/usr/lib/libpq.so: undefined reference to `SSL_write@OPENSSL_1.0.0'
/usr/lib/libpq.so: undefined reference to `ERR_get_error@OPENSSL_1.0.$
/usr/lib/libpq.so: undefined reference to `ENGINE_by_id@OPENSSL_1.0.0'
/usr/lib/libpq.so: undefined reference to `SSL_use_PrivateKey@OPENSSL$
/usr/lib/libpq.so: undefined reference to `X509_get_subject_name@OPEN$
/usr/lib/libpq.so: undefined reference to `ENGINE_init@OPENSSL_1.0.0'
/usr/lib/libpq.so: undefined reference to `SSL_load_error_strings@OPE$
/usr/lib/libpq.so: undefined reference to `X509_STORE_set_flags@OPENS$
/usr/lib/libpq.so: undefined reference to `SSL_new@OPENSSL_1.0.0'
然后我使用指定的OpenSSL目錄重新安裝ruby
openssl version -d
OPENSSLDIR: "/usr/lib/ssl"
rvm reinstall 2.0.0 --with-openssl-dir=/usr/lib/ssl
還是同樣的問題。
嘗試使用--with-pg-config標志來安裝gem。 同樣的問題。
嘗試在許多網站上找到的常見解決方法
mv $rvm_path/usr/lib $rvm_path/usr/rvm_lib
gem install pg
mv $rvm_path/usr/rvm_lib $rvm_path/usr/lib
但這次錯誤是不同的。
寶石安裝pg
Error loading RubyGems plugin "/usr/local/rvm/gems/ruby-2.0.0-p0@global/gems/rubygems-bundler-1.1.1/lib/rubygems_plugin.rb": /usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/x86_64-linux/openssl.so: undefined symbol: SSLv2_method - /usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/x86_64-linux/openssl.so (LoadError)
ERROR: Loading command: install (LoadError)
/usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/x86_64-linux/openssl.so: undefined symbol: SSLv2_method - /usr/local/rvm/rubies/ruby-2.0.0-p0/lib/ruby/2.0.0/x86_64-linux/openssl.so
ERROR: While executing gem ... (NoMethodError)
undefined method `invoke_with_build_args' for nil:NilClass
假設它仍然試圖從Ruby目錄中獲取openssl.so - 問題在於Ruby使用了錯誤的openssl.so文件。 但事實是,我用--with-openssl-dir標志重新編譯了它。
有什么建議嗎? 我真的堅持了前10個小時嘗試我能找到的每個解決方法。
為什么會一直發生? 只要您在此處發布問題,就可以自行解決問題。
解決方案很簡單 - 重新安裝ruby時我錯過了“ - ”。
openssl version -d
OPENSSLDIR: "/usr/lib/ssl"
rvm reinstall 2.0.0 -- --with-openssl-dir=/usr/lib/ssl
這解決了這個問題。 希望它會幫助別人。
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