Question

所以，我只花了一天中最好的时间试图让Rails（和必需的宝石）正确安装。

在使用行缓存和nokogiri的几个小时之后，我才开始觉得筋疲力尽，现在又遇到了安装'pg'宝石的问题。

我将继续与这个问题进行斗争但是有什么建议吗？

（而且我知道我不应该在一篇SO帖子中提出两个问题，但我还是会去的。过去我已经安装了大量软件（包括从头开始编译Linux内核）而且Rails看起来非常困难安装在Snow Leopard上。与过去糟糕的Linux显示驱动程序一样工作。在使这个过程更简单的任何地方都有进展吗？）

错误日志是：

Using linecache19 (0.5.12) 
Installing nokogiri (1.5.0) with native extensions 
Installing pg (0.12.2) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/user/.rvm/rubies/ruby-1.9.2-p318/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 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 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
/usr/bin/gcc-4.2 -I. -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1/x86_64-darwin11.3.0 -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1/ruby/backward -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -I/Users/user/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -I/usr/include -fno-common -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe  -o compat.o -c compat.c
/usr/bin/gcc-4.2 -I. -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1/x86_64-darwin11.3.0 -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1/ruby/backward -I/Users/user/.rvm/rubies/ruby-1.9.2-p318/include/ruby-1.9.1 -I. -DRUBY_EXTCONF_H=\"extconf.h\" -I/Users/user/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -I/usr/include -fno-common -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe  -o pg.o -c pg.c
pg.c: In function ‘pgconn_exec’:
pg.c:954: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:993: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_prepare’:
pg.c:1059: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_exec_prepared’:
pg.c:1150: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:1180: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_s_escape’:
pg.c:1324: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:1331: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_send_query’:
pg.c:1504: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:1543: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_send_prepare’:
pg.c:1608: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_send_query_prepared’:
pg.c:1697: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:1728: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_wait_for_notify’:
pg.c:2103: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_put_copy_data’:
pg.c:2173: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘pgconn_block’:
pg.c:2586: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c:2592: warning: format not a string literal and no format arguments
pg.c:2607: warning: format not a string literal and no format arguments
pg.c: In function ‘pgconn_locreate’:
pg.c:2870: warning: implicit conversion shortens 64-bit value into a 32-bit value
pg.c: In function ‘find_or_create_johab’:
pg.c:3940: warning: comparison between signed and unsigned
pg.c:3946: warning: comparison between signed and unsigned
pg.c: In function ‘pgconn_get_client_encoding_as_rb_encoding’:
pg.c:3974: warning: comparison between signed and unsigned
pg.c: In function ‘pgconn_get_rb_encoding_as_pg_encname’:
pg.c:4006: warning: comparison between signed and unsigned
pg.c: In function ‘pgconn_internal_encoding_set’:
pg.c:4065: warning: comparison between signed and unsigned
pg.c: In function ‘pgconn_external_encoding’:
pg.c:4121: warning: comparison between signed and unsigned
/usr/bin/gcc-4.2 -dynamic -bundle -o pg_ext.bundle compat.o pg.o -L. -L/Users/user/.rvm/rubies/ruby-1.9.2-p318/lib -L/Users/user/.rvm/usr/lib -L. -L/usr/local/lib -L/usr/lib -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace  -lruby.1.9.1 -lpq  -lpthread -ldl -lobjc 
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/user/.rvm/gems/ruby-1.9.2-p318/gems/pg-0.12.2 for inspection.
Results logged to /Users/user/.rvm/gems/ruby-1.9.2-p318/gems/pg-0.12.2/ext/gem_make.out
An error occured while installing pg (0.12.2), and Bundler cannot continue.
Make sure that `gem install pg -v '0.12.2'` succeeds before bundling.

Answer 1

在使这个过程变得更简单的任何地方都取得了进展吗？）

是的：Yehuda Katz正领导一个Kickstarter项目来帮助： http://www.kickstarter.com/projects/1397300529/railsapp

看起来你可能有一个旧的openssl。

试试这个：

sudo port selfupdate

查看过期端口列表：

port outdated

清理过时的端口：

sudo port clean outdated
sudo port upgrade outdated

看看你是否有任何libssl：

find / | grep libssl.*dylib

尝试从Mac下载安装postgresql：

http://www.postgresql.org/download/macosx/

然后像往常一样尝试安装gem：

gem install pg

或者如果你使用sudo do：

sudo gem install pg

Answer 2

通常这是一个64位/ 32位的问题。您的ruby版本和Postgresql安装之间不匹配。根据您的架构，您必须使用正确的ARCH标志。

请参阅stackoverflow上的this answer。

一般来说，使用“homebrew”和RVM

几乎没有问题

HTH

Mac上还有另一个“安装pg gem”问题

2 个答案: