当我包括
group :production do
gem 'pg'
end
在我的 gemfile 中并运行 'bundle install' 我收到一条错误消息：
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/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 PQescapeLiteral()... yes
checking for PQescapeIdentifier()... 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 PQlibVersion()... yes
checking for PQping()... yes
checking for PQsetSingleRowMode()... no
checking for rb_encdb_alias()... yes
checking for rb_enc_alias()... yes
checking for rb_thread_call_without_gvl()... yes
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_fd_select()... yes
checking for rb_w32_wrap_io_handle()... no
checking for PGRES_COPY_BOTH in libpq-fe.h... no
checking for PGRES_SINGLE_TUPLE in libpq-fe.h... no
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
gcc-4.2 -I. -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/x86_64-darwin12.2.1 -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/ruby/backward -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/include -fno-common -O3 -I/opt/sm/pkg/active/include -fno-common -pipe -o gvl_wrappers.o -c gvl_wrappers.c
gcc-4.2 -I. -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/x86_64-darwin12.2.1 -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/ruby/backward -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/usr/include -fno-common -O3 -I/opt/sm/pkg/active/include -fno-common -pipe -o pg.o -c pg.c
pg.c: In function ‘Init_pg_ext’:
pg.c:384: error: ‘PQPING_OK’ undeclared (first use in this function)
pg.c:384: error: (Each undeclared identifier is reported only once
pg.c:384: error: for each function it appears in.)
pg.c:386: error: ‘PQPING_REJECT’ undeclared (first use in this function)
pg.c:388: error: ‘PQPING_NO_RESPONSE’ undeclared (first use in this function)
pg.c:390: error: ‘PQPING_NO_ATTEMPT’ undeclared (first use in this function)
make: *** [pg.o] Error 1
Gem files will remain installed in /Users/sharatakasapu/.bundler/tmp/36975/gems/pg-0.15.1 for inspection.
Results logged to /Users/sharatakasapu/.bundler/tmp/36975/gems/pg-0.15.1/ext/gem_make.out
An error occurred while installing pg (0.15.1), and Bundler cannot continue.
Make sure that `gem install pg -v '0.15.1'` succeeds before bundling.
当我做：
Sharats-MacBook-Pro:sentiment sharatakasapu$ which pg_config
/usr/bin/pg_config
Sharats-MacBook-Pro:sentiment sharatakasapu$ gem install pg -- --with-pg-config= '/usr/bin/pg_config'
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/bin/ruby extconf.rb --with-pg-config= /usr/bin/pg_config
Using config values from
sh: : command not found
sh: : command not found
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 PQescapeLiteral()... yes
checking for PQescapeIdentifier()... 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 PQlibVersion()... yes
checking for PQping()... yes
checking for PQsetSingleRowMode()... no
checking for rb_encdb_alias()... yes
checking for rb_enc_alias()... yes
checking for rb_thread_call_without_gvl()... yes
checking for rb_thread_call_with_gvl()... yes
checking for rb_thread_fd_select()... yes
checking for rb_w32_wrap_io_handle()... no
checking for PGRES_COPY_BOTH in libpq-fe.h... no
checking for PGRES_SINGLE_TUPLE in libpq-fe.h... no
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
gcc-4.2 -I. -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/x86_64-darwin12.2.1 -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/ruby/backward -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I -fno-common -O3 -I/opt/sm/pkg/active/include -fno-common -pipe -o gvl_wrappers.o -c gvl_wrappers.c
gcc-4.2 -I. -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/x86_64-darwin12.2.1 -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/ruby/backward -I/Users/sharatakasapu/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I -fno-common -O3 -I/opt/sm/pkg/active/include -fno-common -pipe -o pg.o -c pg.c
pg.c: In function ‘Init_pg_ext’:
pg.c:384: error: ‘PQPING_OK’ undeclared (first use in this function)
pg.c:384: error: (Each undeclared identifier is reported only once
pg.c:384: error: for each function it appears in.)
pg.c:386: error: ‘PQPING_REJECT’ undeclared (first use in this function)
pg.c:388: error: ‘PQPING_NO_RESPONSE’ undeclared (first use in this function)
pg.c:390: error: ‘PQPING_NO_ATTEMPT’ undeclared (first use in this function)
make: *** [pg.o] Error 1
我一直在查看有关 SO 的答案，但修复此错误收效甚微。有什么建议吗？