how-to use _WIN32 preprocessor with cygwin ?

[Max Bowsher]

Eric Belhomme <rico@ricospirit.net> wrote:

>> The cygwin-specific gcc compile flag -mwin32 causes the _WIN32 macro
>> to be defined.  Certain cygwin applications predate that
>> arrangement, so confusion is understandable.
>>
> Thanks for your answer :-)
> So I wonder I have  to modify the configure script to add -mwin32
> flag on gcc option if I detect cygwin environment. Question : How to
> detect cygwin environment ?

Or, just use code like this in your C files:

#if defined(_WIN32) || defined(__CYGWIN__)
Win32 or Cygwin
#endif

If you do want to detect Cygwin in a configure script, then you just do
AC_CANONICAL_HOST, and then:

case $host_os in
  *cygwin* ) do cygwin stuff;;
         * ) do other stuff;;
esac



Max.


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