pg gem 安装错误 - lion osx、bundler 和 rvm

Question

我花了太多时间试图解决这个问题。

我重新格式化了我的电脑 - 干净的雪豹，而不是立即升级到狮子。

Xcode 4.2.1 安装

RVM 安装

当我设置环境时，我终于进行了捆绑安装，但尝试创建 PG gem 失败。

我已经使用 macports 安装了 postgresql （不知道它预装在 lion 中）。按照此处的说明进行操作：http://benscheirman.com/2010/06/installing-postgresql-for-rails-on-mac-os-x 尝试安装 pg gem 时遇到更多错误：

Installing pg (0.12.0) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/me/.rvm/rubies/ruby-1.8.7-p357/bin/ruby extconf.rb 
checking for pg_config... yes
Using config values from /usr/local/bin/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** 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=/Users/sling31/.rvm/rubies/ruby-1.8.7-p357/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
    --without-pg-config
    --with-pg_config
    --without-pg_config


Gem files will remain installed in /Users/me/.rvm/gems/ruby-1.8.7-p357/gems/pg-0.12.0 for inspection.
Results logged to /Users/me/.rvm/gems/ruby-1.8.7-p357/gems/pg-0.12.0/ext/gem_make.out
An error occured while installing pg (0.12.0), and Bundler cannot continue.
Make sure that `gem install pg -v '0.12.0'` succeeds before bundling.

我不停地搜索 stackoverflow，并且几乎尝试了一切。

我删除了 macports 版本，然后决定尝试使用自制程序安装：

“brew install postgresql”

pg_config 给了我：

BINDIR = /usr/local/Cellar/postgresql/9.1.2/bin
DOCDIR = /usr/local/Cellar/postgresql/9.1.2/share/doc/postgresql
HTMLDIR = /usr/local/Cellar/postgresql/9.1.2/share/doc/postgresql
INCLUDEDIR = /usr/local/Cellar/postgresql/9.1.2/include
PKGINCLUDEDIR = /usr/local/Cellar/postgresql/9.1.2/include
INCLUDEDIR-SERVER = /usr/local/Cellar/postgresql/9.1.2/include/server
LIBDIR = /usr/local/Cellar/postgresql/9.1.2/lib
PKGLIBDIR = /usr/local/Cellar/postgresql/9.1.2/lib
LOCALEDIR = /usr/local/Cellar/postgresql/9.1.2/share/locale
MANDIR = /usr/local/Cellar/postgresql/9.1.2/share/man
SHAREDIR = /usr/local/Cellar/postgresql/9.1.2/share/postgresql
SYSCONFDIR = /usr/local/Cellar/postgresql/9.1.2/etc
PGXS = /usr/local/Cellar/postgresql/9.1.2/lib/pgxs/src/makefiles/pgxs.mk
CONFIGURE = '--disable-debug' '--prefix=/usr/local/Cellar/postgresql/9.1.2' '--enable-thread-safety' '--with-bonjour' '--with-gssapi' '--with-krb5' '--with-openssl' '--with-libxml' '--with-libxslt' '--with-python' '--with-perl' '--with-ossp-uuid' '--datadir=/usr/local/Cellar/postgresql/9.1.2/share/postgresql' '--docdir=/usr/local/Cellar/postgresql/9.1.2/share/doc/postgresql' 'ARCHFLAGS='''-arch x86_64'''' 'CC=/usr/bin/llvm-gcc' 'CFLAGS=-O3 -w -pipe -march=core2 -msse4.1 -I/opt/local/include/ossp' 'LDFLAGS=-L/usr/local/Cellar/readline/6.2.2/lib -L/opt/local/lib' 'LIBS=-luuid' 'CPPFLAGS=-I/usr/local/Cellar/readline/6.2.2/include -I/usr/include/libxml2'
CC = /usr/bin/llvm-gcc
CPPFLAGS = -I/usr/local/Cellar/readline/6.2.2/include -I/usr/include/libxml2 -I/opt/local/include/libxml2
CFLAGS = -O3 -w -pipe -march=core2 -msse4.1 -I/opt/local/include/ossp -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wformat-security -fno-strict-aliasing -fwrapv
CFLAGS_SL = 
LDFLAGS = -L/usr/local/Cellar/readline/6.2.2/lib -L/opt/local/lib -L/opt/local/lib -Wl,-dead_strip_dylibs
LDFLAGS_EX = 
LDFLAGS_SL = 
LIBS = -lpgport -lxslt -lxml2 -lssl -lcrypto -lgssapi_krb5 -lz -lreadline -lm -luuid
VERSION = PostgreSQL 9.1.2

我尝试了所有导出 rvm_archflags="-arch x86_64" 类型的解决方案，但似乎没有任何区别。

有什么想法我应该从哪里开始吗？

Answer 1

我对 Brew 不熟悉，但看起来您调用的 pg_config 不是用于配置 pg 的。

因此，请尝试将 /usr/local/Cellar/postgresql/9.1.2/bin （预计那里有 pg_config）包含到路径中并重试。

实际上，输出显示“使用 /usr/local/bin/pg_config 中的配置值”
它应该是 Brew 路径中的 pg_config。我猜它在 /usr/local/Cellar/postgresql/9.1.2/bin 中。

Answer 2

这可能会有所帮助：https://plus.google.com/104769575749979987265/posts/CVdrNMZYU9R

无论如何，对于 Linux 来说是这样的。