2

带有Ruby 1.8.7 和 1.9.2CentOS 64 位服务器

{{没有 RVM,没有 RVM 就需要它...目前所有 Ruby1.9.2 二进制文件都是 ruby​​19 并且类似地可访问,因此没有 gem-path 或任何类似的映射}}

安装gem 'mysql2'时出错...

我已经安装了所有依赖项,并且都是64 位版本...

所有错误都是 {./client.h:13: error: redefinition of typedef 'rb_unblock_function_t'}

{#warning ruby​​sig.h is obsolete} 可能是这个原因吗?

控制台捕获:

#gem19 install mysql2 -v 0.2.7 -- --with-mysql-dir=/usr/bin --with-mysql-config=/usr/bin/mysql_config --with-mysql-include=/usr/include/mysql

Building native extensions.  This could take a while...
ERROR:  Error installing mysql2:
        ERROR: Failed to build gem native extension.

/usr/bin/ruby19 extconf.rb --with-mysql-dir=/usr/bin --with-mysql-config=/usr/bin/mysql_config --with-mysql-include=/usr/include/mysql
checking for rb_thread_blocking_region()... no
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
creating Makefile

make
gcc -I. -I/usr/include/ruby-1.9.1/x86_64-linux -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I. -DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H    -I/usr/include/mysql  -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -mtune=generic -Wall -fno-strict-aliasing -fPIC -Wall -funroll-loops  -o result.o -c result.c
In file included from ./client.h:11,
                 from ./mysql2_ext.h:39,
                 from result.c:1:
/usr/include/ruby-1.9.1/ruby/backward/rubysig.h:14:2: warning: #warning rubysig.h is obsolete
In file included from ./mysql2_ext.h:39,
                 from result.c:1:
./client.h:13: error: redefinition of typedef ‘rb_unblock_function_t’
/usr/include/ruby-1.9.1/ruby/intern.h:754: error: previous declaration of ‘rb_unblock_function_t’ was here
./client.h:14: error: redefinition of typedef ‘rb_blocking_function_t’
/usr/include/ruby-1.9.1/ruby/intern.h:755: error: previous declaration of ‘rb_blocking_function_t’ was here
./client.h:20: error: static declaration of ‘rb_thread_blocking_region’ follows non-static declaration
/usr/include/ruby-1.9.1/ruby/intern.h:759: error: previous declaration of ‘rb_thread_blocking_region’ was here
./client.h: In function ‘rb_thread_blocking_region’:
./client.h:23: warning: ‘rb_thread_blocking_region_begin’ is deprecated (declared at /usr/include/ruby-1.9.1/ruby/backward/rubysig.h:31)
./client.h:25: warning: ‘rb_thread_blocking_region_end’ is deprecated (declared at /usr/include/ruby-1.9.1/ruby/backward/rubysig.h:32)
In file included from ./mysql2_ext.h:39,
                 from result.c:1:
./client.h:41:7: warning: no newline at end of file
make: *** [result.o] Error 1
4

3 回答 3

8

这是由他们在 gem 上引入的一个补丁引起的,以便它在 Ruby 1.8 中运行,但在 Ruby 1.9 上不需要它。

要停用此“修复”并能够安装 gem,您可以为编译器定义一个标志:

gem install mysql2 -- --with-cflags=\"-DHAVE_RB_THREAD_BLOCKING_REGION\"
于 2013-01-24T16:09:16.907 回答
1

问题出在 extconf/mkmf 部分:

rb_thread_blocking_region()... 没有

但是 Ruby 1.9.2 定义了 rb_thread_blocking_region(除非你用一些我不知道的时髦的 ifdef 和编辑来构建 Ruby)。

检查您的 mkmf.log 文件。它应该显示 Ruby 无法编译/链接测试 rb_thread_blocking_region 的 conftest.c 文件。原因是 libcrypt.a 依赖于 libfreebl3,但链接行没有引用该库。

我通过编辑 /usr/local/lib/ruby/1.9.1/i686-linux/rbconfig.rb 解决了这个问题,如下所示:

-  CONFIG["LIBS"] = "-lpthread -lrt -ldl -lcrypt -lm "
+  CONFIG["LIBS"] = "-lpthread -lrt -ldl -lcrypt -lfreebl3 -lm "

之后我能够构建 mysql2 gem。无需安装rvm等。

于 2012-06-30T00:34:39.897 回答
0

我修复它的方法是通过 RVM 重新安装 Ruby。之后就没有更多的错误了。

或者,删除 client.h 中试图为 Ruby 1.8 模拟 rb_thread_blocking_region 的块,这样就可以了。

于 2011-06-26T19:20:26.290 回答