From: Jim Weirich <jim@...>
Date: 2004-08-06T08:11:04+09:00
Subject: Re: Amazing GUI toolkit with visual designer & Ruby Integration

H. Simpson wrote:
> QUOTE FROM LGPL:
> 
> "However, linking a "work that uses the Library" with the Library
> creates an executable that is a derivative of the Library (because it
> contains portions of the Library), rather than a "work that uses the
> library".  The executable is therefore covered by this License.
> Section 6 states terms for distribution of such executables."
> 
> MY TRANSLATION:  If you statically link to LGPL library, then your 
> application is considered a "derivative of the Library" rather than a 
> "work that uses the library".

Correct.  And section 6 of the LGPL covers distributing such a work. 
One of your options is to provide the source and object code of the 
library (only the library) and the object code of your proprietary work 
(LGPL: 'with the complete machine-readable "work that uses the Library", 
as object code and/or source code').

Source code is not required for your proprietary code (only 
modifications to the library itself require source).  The intent is that 
the end user may modify the library (which is open source after all) and 
relink your application with it.  Now providing your proprietary code in 
an object linkable format may still be objectionable to you, but the 
LGPL never makes you provide the source to your own code[1].

-- 
-- Jim Weirich    jim@weirichhouse.org     http://onestepback.org
-----------------------------------------------------------------
"Beware of bugs in the above code; I have only proved it correct,
not tried it." -- Donald Knuth (in a memo to Peter van Emde Boas)

[1] Well, ok, I guess that statement assumes that there is a non-source 
linkable version of the code.