From octave-maintainers-request at bevo dot che dot wisc dot edu Thu Oct 10 21:24:42 2002
Subject: Re: MINGW build
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Mumit Khan <khan at nanotech dot wisc dot edu>
Cc: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>,    Paul Kienzle <pkienzle@jazz.ncnr.nist.gov>,    <octave-maintainers@bevo.che.wisc.edu>
Date: Thu, 10 Oct 2002 21:22:03 -0500

On 10-Oct-2002, Mumit Khan <khan at nanotech dot wisc dot edu> wrote:

| My mistake. Cygwin GCC is now "unix-only" by default, and will not define
| _WIN32 etc without the -mwin32 option. Something I had completely
| forgotten about, and the fact that my configure scripts automatically adds
| -mwin32 if appropriate fed that illusion.

OK, for now I'm just using whatever combination of __WIN32__ and
__CYGWIN__ that seems appropriate for the features I want.  But maybe
we should define some more specific preprocessor variables in config.h
based on these symbols.  Something like

  // Define if the system has C:\foo\bar file names
  #if defined (__WIN32__) || defined (__CYGWIN__)
  #define HAVE_WINDOWS_FILESYSTEM 1
  #endif

  // Define if we expect to have <windows.h>, Sleep, etc.
  #if defined (__WIN32__) || ! (defined (__CYGWIN__) || ...)
  #define USE_WINDOWS_API 1
  #endif

might be better since these variable names describe features rather
than system names.

jwe