RFA: .opt files for x86, darwin and lynxos

[Ranjit Mathew]

Richard Henderson wrote:
> On Wed, Apr 20, 2005 at 10:00:52PM +0100, Richard Sandiford wrote:
> 
>>  - i386.h provides undocumented -mwindows and -mdll options.
>>    I've put these in their own file (dummy-windows.opt) so that
>>    cygwin and mingw can provide properly-documented versions.
> 
> 
> Huh.  I think perhaps that's simply a mistake.  It first appears here: 
> 
> revision 1.5
> date: 1997/12/07 00:29:39;  author: law;  state: Exp;  lines: +2 -0
> Merge from gcc-2.8
> 
> which means it is likely that Kenner and/or ACT wrote the patch.
> 
> I'd say kill that bit, but the rest is ok.

"-mwindows" is used on Cygwin/MinGW to denote that the
program will be a Win32 GUI application and not a console
application:

  http://cygwin.com/cygwin-ug-net/programming.html#gcc-gui
  http://mingw.org/docs.shtml#compilingandbuilding

I'm not that familiar with "-mdll", but perhaps it's
just used to create a DLL with Cygwin/MinGW instead
of an ordinary executable. These days it's simpler to
just use "gcc -shared -o foo.dll foo.c" instead.

The point of this mail is that "-mwindows" at least
is not useless and certainly should not be removed.

As for "-mdll", a Cygwin/MinGW maintainer (cgf,dannysmith)
should be able to provide a better insight.

Ranjit.
-- 
Ranjit Mathew      Email: rmathew AT gmail DOT com

Bangalore, INDIA.    Web: http://ranjitmathew.hostingzero.com/