我在 Mac OS X 10.8.2 上，几个小时前我重新安装了它，对随后的问题感到沮丧。
我已经安装了 Homebrew，当我运行时brew doctor，它说Your system is raring to brew.
我有带有命令行实用程序的最新 Xcode。
我已经使用 Homebrew 安装了 PostgreSQL。
steven$ ls /usr/local/Cellar/postgresql/9.2.1
COPYRIGHT README homebrew.mxcl.postgresql.plist lib
INSTALL_RECEIPT.json bin include share
steven$ psql --version
psql (PostgreSQL) 9.2.1
iMac-001EC20A3C44-5:9.2.1 steven$ which psql
/usr/local/bin/psql
我的 Gemfile 中有一个 Rail 应用程序gem 'pg'，但我无法安装 gem：
steven$ bundle install
Fetching source index for http://rubygems.org/
Installing pg (0.14.1) with native extensions /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems/installer.rb:482:in `build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb --with-pg-config=/usr/pgsql-9.1/bin/pg_config
Using config values from /usr/pgsql-9.1/bin/pg_config
sh: /usr/pgsql-9.1/bin/pg_config: No such file or directory
sh: /usr/pgsql-9.1/bin/pg_config: No such file or directory
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.
它似乎在寻找 pg_config 和 libpq，它们很容易找到：
steven$ ls /usr/local/Cellar/postgresql/9.2.1/bin
... pg_config ...
steven$ ls /usr/local/Cellar/postgresql/9.2.1/include
... libpq ...
所以我尝试通过我能想到的每个配置选项，但没有一个工作：
steven$ sudo gem install pg -- --with-pg-config="/usr/local/Cellar/postgresql/9.2.1/bin"
Password:
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin
Using config values from /usr/local/Cellar/postgresql/9.2.1/bin
sh: /usr/local/Cellar/postgresql/9.2.1/bin: is a directory
sh: /usr/local/Cellar/postgresql/9.2.1/bin: is a directory
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
--without-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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/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}/lib
--with-pg-config
--with-pqlib
--without-pqlib
--with-libpqlib
--without-libpqlib
--with-ms/libpqlib
--without-ms/libpqlib
steven$ sudo gem install pg -- --with-pg-config="/usr/local/Cellar/postgresql/9.2.1/bin" --with-libpqlib="/usr/local/Cellar/postgresql/9.2.1/include"
Password:
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin --with-libpqlib=/usr/local/Cellar/postgresql/9.2.1/include
Using config values from /usr/local/Cellar/postgresql/9.2.1/bin
sh: /usr/local/Cellar/postgresql/9.2.1/bin: is a directory
sh: /usr/local/Cellar/postgresql/9.2.1/bin: is a directory
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 -l/usr/local/Cellar/postgresql/9.2.1/include... 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
--without-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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/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}/lib
--with-pg-config
--with-pqlib
--without-pqlib
--with-libpqlib
--with-ms/libpqlib
--without-ms/libpqlib
steven$ sudo gem install pg --with-pg-config="/usr/local/Cellar/postgresql/9.2.1/bin" --with-libpqlib="/usr/local/Cellar/postgresql/9.2.1/include"
ERROR: While executing gem ... (OptionParser::InvalidOption)
invalid option: --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin
steven$ sudo gem install pg --with-pg-config="/usr/local/Cellar/postgresql/9.2.1/bin/" --with-libpqlib="/usr/local/Cellar/postgresql/9.2.1/include/"
ERROR: While executing gem ... (OptionParser::InvalidOption)
invalid option: --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/
steven$ sudo gem install pg --with-pg-config='/usr/local/Cellar/postgresql/9.2.1/bin/' --with-libpqlib='/usr/local/Cellar/postgresql/9.2.1/include/'
ERROR: While executing gem ... (OptionParser::InvalidOption)
invalid option: --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/
steven$ sudo gem install pg -- --with-pg-config='/usr/local/Cellar/postgresql/9.2.1/bin/' --with-libpqlib='/usr/local/Cellar/postgresql/9.2.1/include/'
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/ --with-libpqlib=/usr/local/Cellar/postgresql/9.2.1/include/
Using config values from /usr/local/Cellar/postgresql/9.2.1/bin/
sh: /usr/local/Cellar/postgresql/9.2.1/bin/: is a directory
sh: /usr/local/Cellar/postgresql/9.2.1/bin/: is a directory
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 -l/usr/local/Cellar/postgresql/9.2.1/include/... 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
--without-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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/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}/lib
--with-pg-config
--with-pqlib
--without-pqlib
--with-libpqlib
--with-ms/libpqlib
--without-ms/libpqlib
steven$ sudo gem install pg --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/ --with-libpqlib=/usr/local/Cellar/postgresql/9.2.1/include
ERROR: While executing gem ... (OptionParser::InvalidOption)
invalid option: --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/
iMac-001EC20A3C44-5:testivate steven$ sudo gem install pg --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/pg_config
ERROR: While executing gem ... (OptionParser::InvalidOption)
invalid option: --with-pg-config=/usr/local/Cellar/postgresql/9.2.1/bin/pg_config
我应该怎么办？
