[Mingw-users] detecting my gcc

[Damian R. S. <da...@pr...>]

Hello,

I´m trying to make a program that can be compiled
by any of the following gcc compilers:

-- Mingw (Windows)
-- DJGPP (DOS)
-- Linux gcc (RedHat)

To differentiate the treatment at certain points
of the code I try  to test for the following macros:

#ifdef DJGPP...     for DJGPP (seems to work)

#ifdef _WIN32...    for Mingw (is this safe or is there
                    a better one?)

#ifdef ???          for Linux gcc (what can I use?)


And finally, to verify whether my compiler is
gcc at all I tried to use __GNU__ but it didn't work
under Linux, then I tried __GLIBC__ but it didn't work
under Mingw....  Is there a macro that I can use
and be absolutely sure that my compiler is a gcc?

Thank you.