Extending Emacs with C

Extending Emacs with C

[Siegfried Heintze]

I just compiled emacs on Win2000 using cl v12 (aka MSVC6). Hurray. Too bad
it it does not link when using the latest Microsoft C compiler (v 13.1).
Good thing I kept v12 around.

Are there any documents that can guide me on extending emacs (elisp) with C?
I want to call some COM objects from elisp.

  Thanks,
    Siegfried

Re: Extending Emacs with C

[Gareth Rees]

Siegfried Heintze wrote:
> Are there any documents that can guide me on extending emacs (elisp)
> with C?  I want to call some COM objects from elisp.

You can't do this in vanilla GNU Emacs, because dynamic extensions
provide a way for people to try to get around the GPL.  See
http://mail.gnu.org/archive/html/emacs-devel/2003-07/msg00425.html

However, if you're happy to recompile Emacs then you can add whatever
functionality you like.  See
http://www.emacswiki.org/cgi-bin/wiki/DynamicallyExtendingEmacs

-- 
Gareth Rees   http://www.garethrees.org/

Re: Extending Emacs with C

[Khuong D Pham]

How did you compile emacs with msvc6. I have tried it without success
I get this when I run nmake after execute configure.bat:

makefile (25): fatal error U1035: syntax error : expected ':' or '='
separator


"Siegfried Heintze" <siegfried@heintze.com> wrote in message
news:3fb08926$1@news.seqnet.net...
> I just compiled emacs on Win2000 using cl v12 (aka MSVC6). Hurray. Too bad
> it it does not link when using the latest Microsoft C compiler (v 13.1).
> Good thing I kept v12 around.
>
> Are there any documents that can guide me on extending emacs (elisp) with
C?
> I want to call some COM objects from elisp.
>
>   Thanks,
>     Siegfried
>
>

Re: Extending Emacs with C

[Pascal Bourguignon]

gareth.rees@pobox.com (Gareth Rees) writes:

> Siegfried Heintze wrote:
> > Are there any documents that can guide me on extending emacs (elisp)
> > with C?  I want to call some COM objects from elisp.
> 
> You can't do this in vanilla GNU Emacs, because dynamic extensions
> provide a way for people to try to get around the GPL.  See
> http://mail.gnu.org/archive/html/emacs-devel/2003-07/msg00425.html
> 
> However, if you're happy to recompile Emacs then you can add whatever
> functionality you like.  See
> http://www.emacswiki.org/cgi-bin/wiki/DynamicallyExtendingEmacs

You  could also  just have  an external  COM tool  and invoke  it with
shell-command. Then no need to recompile emacs.

-- 
__Pascal_Bourguignon__
http://www.informatimago.com/

Re: Extending Emacs with C

[Siegfried Heintze]

I had trouble getting the sources by googling for them so I downloaded
cygwin which includes emacs 21.2 sources.

I then used these bat files:
call_12_configure.bat
set MSVCDir=\Program Files\Microsoft Visual Studio\VC98
set
INCLUDE=%MSVCDir%\ATL\INCLUDE;%MSVCDir%\INCLUDE;%MSVCDir%\MFC\INCLUDE;%INCLU
DE%
set LIB=%MSVCDir%\LIB;%MSVCDir%\MFC\LIB;%LIB%
set PATH=%MSVCDir%\bin;\Program Files\Microsoft Visual
Studio\Common\MSDev98\Bin;c:\GNU_Utilities\cygwin\bin
call .\configure.bat

call_12_nmake.bat
set MSVCDir=\Program Files\Microsoft Visual Studio\VC98
set
INCLUDE=%MSVCDir%\ATL\INCLUDE;%MSVCDir%\INCLUDE;%MSVCDir%\MFC\INCLUDE;%INCLU
DE%
set LIB=%MSVCDir%\LIB;%MSVCDir%\MFC\LIB;%LIB%
set PATH=%MSVCDir%\bin;\Program Files\Microsoft Visual
Studio\Common\MSDev98\Bin;c:\GNU_Utilities\cygwin\bin
nmake

set MSVCDir=\Program Files\Microsoft Visual Studio\VC98
set
INCLUDE=%MSVCDir%\ATL\INCLUDE;%MSVCDir%\INCLUDE;%MSVCDir%\MFC\INCLUDE;%INCLU
DE%
set LIB=%MSVCDir%\LIB;%MSVCDir%\MFC\LIB;%LIB%
set PATH=%MSVCDir%\bin;\Program Files\Microsoft Visual
Studio\Common\MSDev98\Bin;c:\GNU_Utilities\cygwin\bin
nmake install


"Khuong D Pham" <xxx@xxx.com> wrote in message
news:ud9sb.27798$jf4.1579491@news000.worldonline.dk...
> How did you compile emacs with msvc6. I have tried it without success
> I get this when I run nmake after execute configure.bat:
>
> makefile (25): fatal error U1035: syntax error : expected ':' or '='
> separator
>
>
> "Siegfried Heintze" <siegfried@heintze.com> wrote in message
> news:3fb08926$1@news.seqnet.net...
> > I just compiled emacs on Win2000 using cl v12 (aka MSVC6). Hurray. Too
bad
> > it it does not link when using the latest Microsoft C compiler (v 13.1).
> > Good thing I kept v12 around.
> >
> > Are there any documents that can guide me on extending emacs (elisp)
with
> C?
> > I want to call some COM objects from elisp.
> >
> >   Thanks,
> >     Siegfried
> >
> >
>
>