a1322743ff
* INSTALL
* package/harbour.rb
* package/mpkg_src_nightly.sh
* package/mpkg_win_nightly.bat
* package/updt_web_nightly.sh
* website/changelog.html
* website/faq/harbour17.html
* website/faq/harbour27.html
* website/index.html
* website/menu/harbour-menu.js
* reverted all changes regarding new repo address
* contrib/hbformat/hbfmtcls.prg
* reverted accidentally committed Maurizio's patch,
and left only the few minor changes regarding
'ALWAYS' indentation and external HBX support.
* contrib/gtwvg/activex.prg
* contrib/gtwvg/tests/activex.prg
* contrib/gtwvg/tests/cuigdlgs.prg
* contrib/gtwvg/tests/demowvg.prg
* contrib/gtwvg/tests/demowvg1.prg
* contrib/gtwvg/tests/demoxbp.prg
* contrib/gtwvg/tests/dyndlgs.prg
* contrib/gtwvg/tests/modal.prg
* contrib/gtwvg/tests/tbrowser.prg
* contrib/gtwvg/tests/utils.prg
* contrib/gtwvg/tests/wvtcls.prg
* contrib/gtwvg/tests/xbp.prg
* minor follow ups
* changed string delimiters to "
93 lines
4.7 KiB
HTML
93 lines
4.7 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<LINK REV="made" HREF="mailto:harbour-faq@netfang.net">
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
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<TITLE>What is the Harbour exception?</TITLE>
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</HEAD>
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<BODY text="#000000" bgcolor="#ffffff">
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<A HREF="harbour.html"><EM>Frequently Asked Questions about Harbour</EM></A>
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<b>:</b> <A HREF="harbour6.html"><EM>About Harbour</EM></A>
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<b>:</b> <EM>What is the Harbour exception?</EM><BR>
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<b>Previous:</b> <A HREF="harbour16.html"><EM>Why was the GPL chosen as the licence for Harbour?</EM></A><BR>
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<b>Next:</b> <A HREF="harbour18.html"><EM>So why don't you use the LGPL?</EM></A>
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<HR NOSHADE>
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<H2><A NAME="17"></A>2.11. What is the Harbour exception?<A NAME="HarbourException"></A></H2>
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<p>There is one small wrinkle regarding the use of the GPL as the licence for
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Harbour. Harbour comes in a number of parts, these can best be described as
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the compiler (including pre-processor), the virtual machine and the run-time
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library. The GPL dictates that anyone distributing binary versions of GPLd
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code must make an offer of providing the source and that the code linked
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against the GPLd code must also fall under the GPL. Failure to do so is a
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breach of licence.</p>
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<p>In Harbour terms this means different things depending on which portion of
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Harbour you are considering. The compiler itself can live under the GPL, it
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isn't part of the run-time and so poses no problem. This isn't true for the
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<A href="http://harbour-project.svn.sourceforge.net/svnroot/harbour-project/trunk/harbour/src/vm/">HVM</A> and
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<A href="http://harbour-project.svn.sourceforge.net/svnroot/harbour-project/trunk/harbour/src/rtl/">RTL</A> because they get linked into your application and so would
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require that your code be distributed under a compatible licence. While the
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Harbour developers would like to see you develop
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<A HREF="harbour13.html#FreeSoftware">free software</A> they have decided to let you make this choice.</p>
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<p>To solve this problem the developers have employed the "Harbour
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Exception". This idea comes from the GPL exception used by <A href="http://www.gnu.org/software/guile/guile.html">guile</A>. In effect,
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the exception states that you must observe the GPL except when the code in
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question is being used as the HVM and RTL of an application compiled with
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Harbour.</p>
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<p>The wording of the exception currently reads:
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<blockquote>
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The exception is that, if you link the Harbour libraries with other
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files to produce an executable, this does not by itself cause the
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resulting executable to be covered by the GNU General Public License.
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Your use of that executable is in no way restricted on account of
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linking the Harbour library code into it.
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</blockquote>
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<blockquote>
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This exception does not however invalidate any other reasons why
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the executable file might be covered by the GNU General Public License.
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</blockquote>
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<blockquote>
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This exception applies only to the code released by the Harbour
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Project under the name Harbour. If you copy code from other
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Harbour Project or Free Software Foundation releases into a copy of
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Harbour, as the General Public License permits, the exception does
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not apply to the code that you add in this way. To avoid misleading
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anyone as to the status of such modified files, you must delete
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this exception notice from them.
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</blockquote>
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<blockquote>
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If you write modifications of your own for Harbour, it is your choice
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whether to permit this exception to apply to your modifications.
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If you do not wish that, delete this exception notice.
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</blockquote>
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Please note that the original wording of the exception was based on an
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earlier version of the guile exception. That version of the exception was
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less verbose and less clear. The wording of that version read:
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<blockquote>
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The exception is that if you link the Harbour Runtime Library (HRL) and/or
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the Harbour Virtual Machine (HVM) with other files to produce an executable,
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this does not by itself cause the resulting executable to be covered by the
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GNU General Public License. Your use of that executable is in no way
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restricted on account of linking the RTL and/or HVM code into it.
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</blockquote>
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The Harbour sources are being converted over to the new exception as each
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copyright holder makes the change. The intention is that every item of
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source that uses the Harbour exception will clearly use the more verbose
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version.</p>
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<HR NOSHADE>
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<A HREF="harbour.html"><EM>Frequently Asked Questions about Harbour</EM></A>
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<b>:</b> <A HREF="harbour6.html"><EM>About Harbour</EM></A>
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<b>:</b> <EM>What is the Harbour exception?</EM><BR>
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<b>Previous:</b> <A HREF="harbour16.html"><EM>Why was the GPL chosen as the licence for Harbour?</EM></A><BR>
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<b>Next:</b> <A HREF="harbour18.html"><EM>So why don't you use the LGPL?</EM></A>
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</BODY>
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</HTML>
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