使用ruby 2.0.0在Windows中安裝mysql ruby​​ gem失敗

Question

使用巧克力我已經安裝了ruby和ruby.devkit

cinst ruby
cinst ruby.devkit

然后，我按照github Wiki上的說明進行了測試，並測試了第5點中詳細介紹的devkit

gem install json --platform=ruby
ruby -rubygems -e "require 'json'; puts JSON.load('[42]').inspect" 

這項工作正常，所以我認為我的devkit安裝正確。 但是當我嘗試像這樣安裝mysql gem時

gem install mysql --platform=ruby -- --with-mysql-dir=C:/mysql-connector-c-noinstall-6.0.2-win32

我收到以下錯誤

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

    C:/ruby200/bin/ruby.exe extconf.rb --with-mysql-dir=C:/mysql-connector-c-noinstall-6.0.2-win32 
checking for main() in -llibmysql... no
*** 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=C:/ruby200/bin/ruby
        --with-mysql-dir
        --with-mysql-include
        --without-mysql-include=${mysql-dir}/include
        --with-mysql-lib=${mysql-dir}/
        --with-libmysqllib
        --without-libmysqllib


Gem files will remain installed in C:/ruby200/lib/ruby/gems/2.0.0/gems/mysql-2.9.1 for inspection.
Results logged to C:/ruby200/lib/ruby/gems/2.0.0/gems/mysql-2.9.1/ext/mysql_api/gem_make.out

我的所有路徑都正確無誤，我正在遵循本教程 。 日志文件對我沒有太大幫助，但是就在這里。

have_library: checking for main() in -llibmysql... -------------------- no

"gcc -o conftest.exe -IC:/ruby200/include/ruby-2.0.0/i386-mingw32 -IC:/ruby200/include/ruby-2.0.0/ruby/backward -IC:/ruby200/include/ruby-2.0.0 -I. -IC:/mysql-connector-c-noinstall-6.0.2-win32/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D_FILE_OFFSET_BITS=64   -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c  -L. -LC:/ruby200/lib -LC:\mysql-connector-c-noinstall-6.0.2-win32\lib\libmysql.dll -LC:/mysql-connector-c-noinstall-6.0.2-win32/ -L.      -lmsvcrt-ruby200  -lshell32 -lws2_32 -limagehlp -lshlwapi  "
checked program was:
/* begin */
1: #include "ruby.h"
2: 
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7:   return 0;
8: }
/* end */

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相關問題

• 由於缺少libmysql，在Windows上安裝mysql-2.9.0 gem失敗。具有完全相同的錯誤，但我已經在接受錯誤的答案了，但仍然收到錯誤

• 這個答案似乎表明我不應該費心嘗試構建gem並僅使用二進制版本https://stackoverflow.com/a/13613036/799628，所以也許我會這樣做。

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注意：我最終使用了mysql2 gem，它具有足夠的功能來滿足我的需求。

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Answer 1

我現在也面臨着同樣的問題。 但固定為Ruby 2.0.0

從聽到的http://dev.mysql.com/downloads/connector/c/解壓縮到目錄中下載mysql的c連接器，然后

gem install mysql2 --platform=ruby -- --with-mysql-dir=C:/mysql-connector-c-noinstall-6.0.2-win32

Answer 2

為了使mysql gem正常工作，需要以下命令進行安裝

gem install mysql --platform=ruby -- --with-opt-dir=C:/mysql-connector-c-noinstall-6.0.2-win32

Answer 3

另一種方法

根據您的CPU安裝一個或另一個：

http://dev.mysql.com/get/Downloads/Connector-C/mysql-connector-c-6.1.3-win32.msi http://dev.mysql.com/get/Downloads/Connector-C/mysql -連接器-c-6.1.3-winx64.msi

准備一個指向您已安裝C文件的驅動器：

subst x: "C:\Program Files\MySQL\MySQL Connector C 6.1"

要么

subst x: "C:\Program Files (x86)\MySQL\MySQL Connector C 6.1"

現在運行gem install，請記住您必須已安裝Devkit並在環境PATH中添加了Ruby \\ bin和devkit \\ bin路徑：

C:\Ruby\bin>gem install mysql --platform=ruby -- --with-opt-dir=x:
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-opt-dir=x:'
This could take a while...
Successfully installed mysql-2.9.1
Parsing documentation for mysql-2.9.1
Installing ri documentation for mysql-2.9.1
Done installing documentation for mysql after 1 seconds
1 gem installed

刪除臨時驅動器

subst x: /d