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Pg gem troubleshooting

Trying to install pg gem gives me errors.

I am using Ruby 1.9.3-p125 created using rbenv / ruby-build. I installed PostgreSQL using a one-click installer. I can connect to the database using pgAdmin. I'm running out of ideas.

% gem install pg ~ Building native extensions. This could take a while... ERROR: Error installing pg: ERROR: Failed to build gem native extension. /Users/sandropadin/.rbenv/versions/1.9.3-p125/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... yes checking for PQconnectionUsedPassword()... yes checking for PQisthreadsafe()... yes checking for PQprepare()... yes checking for PQexecParams()... yes checking for PQescapeString()... yes checking for PQescapeStringConn()... yes checking for PQgetCancel()... yes checking for lo_create()... yes checking for pg_encoding_to_char()... yes checking for pg_char_to_encoding()... yes checking for PQsetClientEncoding()... yes checking for rb_encdb_alias()... yes checking for rb_enc_alias()... yes checking for struct pgNotify.extra in libpq-fe.h... yes checking for unistd.h... yes checking for ruby/st.h... yes creating extconf.h creating Makefile make compiling pg.c compiling pg_connection.c pg_connection.c: In function 'pgconn_wait_for_notify': pg_connection.c:1986: warning: 'rb_thread_select' is deprecated (declared at /Users/sandropadin/.rbenv/versions/1.9.3-p125/include/ruby-1.9.1/ruby/intern.h:379) pg_connection.c: In function 'pgconn_block': pg_connection.c:2512: warning: 'rb_thread_select' is deprecated (declared at /Users/sandropadin/.rbenv/versions/1.9.3-p125/include/ruby-1.9.1/ruby/intern.h:379) compiling pg_result.c linking shared-object pg_ext.bundle ld: in /usr/local/lib/libssl.0.9.8.dylib, missing required architecture x86_64 in file for architecture x86_64 collect2: ld returned 1 exit status make: *** [pg_ext.bundle] Error 1 Gem files will remain installed in /Users/sandropadin/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/pg-0.13.2 for inspection. Results logged to /Users/sandropadin/.rbenv/versions/1.9.3-p125/lib/ruby/gems/1.9.1/gems/pg-0.13.2/ext/gem_make.out
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ruby postgresql osx-lion rubygems macos
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Not sure which of the following steps finally cleared this problem. But since mu is mentioned too briefly, the problem was mixing 32-bit and 64-bit binaries.

  • I first installed this 64-bit version of PostgreSQL

  • 2nd, I removed any old OpenSSL installation for Homebrew

    $ brew remove openssl

  • Thirdly, I installed the 64-bit version of OpenSSL with Homebrew

    $ brew install --64-bit openssl

  • Finally, when installing pg gem, I changed LDFLAGS to point to the 64-bit version of OpenSSL

    $ gem install pg - --with-ldflags = '- L / usr / local / Cellar / openssl / 0.9.8s'

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