Re: Re: error during installing gem named mysql2

Bryan Crossland
Mon, 14 Mar 2011 10:53:33 -0000

On Mar 14, 2011, at 4:11 AM, salim mandrekar
<mandrekar.salim-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> i even tried installing gem mysql2 but im getting a error which
i''m nt able to retify it.. following is the error
>
> C:\>gem i mysql2
> Temporarily enhancing PATH to include DevKit...
> Building native extensions.  This could take a while...
> ERROR:  Error installing mysql2:
>         ERROR: Failed to build gem native extension.
>
>         C:/Ruby192/bin/ruby.exe extconf.rb
> checking for rb_thread_blocking_region()... yes
> 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:/Ruby192/bin/ruby
>         --with-mysql-dir
>         --without-mysql-dir
>         --with-mysql-include
>         --without-mysql-include=${mysql-dir}/include
>         --with-mysql-lib
>         --without-mysql-lib=${mysql-dir}/lib
>         --with-libmysqllib
>         --without-libmysqllib
>
>
> Gem files will remain installed in
C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.
> 2.4 for inspection.
> Results logged to
C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.4/ext/mysql2/ge
> m_make.out

Try to build it with native extensions..
gem install mysql2 --platform=ruby

B.