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Subject: RE: mysql.so: Permission denied (Ruby under Cygwin)
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Date: Mon, 18 Jun 2007 14:57:18 +0200
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From: "Ronald Fischer" <ronald DOT fischer AT venyon DOT com>
To: <cygwin AT cygwin DOT com>
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> /usr/lib/ruby/gems/1.8/gems/mysql-2.7.3-mswin32/ext/mysql.so: 
> Permission
> > denied - 
> /usr/lib/ruby/gems/1.8/gems/mysql-2.7.3-mswin32/ext/mysql.so
> > (LoadError)
> >         from
> > 
> /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in `require'
> 
> Do you have libmysqlclient installed?  

Honestly, I don't know. Where is it supposed to be? I did a

  find /usr/lib -name 'libmysqlclient*' -print

but no file matching this name was found.

I have installed Ruby via the Cygwin setup program.
I have installed MySql for Windows, and running it as a service. 
Finally, I have installed the Ruby mysql module via 
   gem install -r mysql
assuming that "this would do the right thing" anyway.

> Have you checked the library
> dependencies of mysql.so?  

I tried to do a 

  ldd mysql.so

but ldd was not found on my installation. In which Cygwin package is ldd
supposed to be? 

> If you don't have the libraries 
> that this DLL
> requires it will fail to load.
> 
> Also, it's very suspicious that you'd be using what looks like a
> native-compiled module (i.e. MSVCRT) in a Cygwin binary.  
> That's usually
> a recipe for failure.

Could well be. I think mysql uses somewhere below a native (C-)
interface
to Mysql. If *this* is the reason for the problem, I will have to find
a different way to access Mysql.

Ronald

> 
> Brian
> 
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