From: Andris <pavenis AT lanet DOT lv>
Organization: Pavenis
To: djgpp AT delorie DOT com, Keen Wayne A Contr AFRL/MNGG <keenwa AT eglin DOT af DOT mil>
Subject: Re: gcc 3.2.1 Version
Date: Thu, 5 Dec 2002 15:52:14 +0200
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References: <30C9E24891FFD411B68A009027724CB702C04E42 AT eg-002-015 DOT eglin DOT af DOT mil>
In-Reply-To: <30C9E24891FFD411B68A009027724CB702C04E42@eg-002-015.eglin.af.mil>
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Reply-To: djgpp AT delorie DOT com

On Wednesday 04 December 2002 16:38, Keen Wayne A Contr AFRL/MNGG wrote:
> You got my curiosity up, so I checked the same operation on Cygwin.  I got
> a similar result, PATCHLEVEL appears not to be defined.  On the other hand,
> I was able to use __VERSION__ to get the right result.  I took the liberty
> of tacking onto your code.
>
> As a side note, WHY can I never remember %s is the format string for
> string. What a moron I am.
>
> #include <stdio.h>
> #include <iostream>
> using namespace std;
>
> int
> main (void)
> {
>   char buf[30], *p = buf;
>
>   p += sprintf (p, "gcc %d.%d  %s", __GNUC__, __GNUC_MINOR__,__VERSION__);
>
> #if defined(__GNUC_PATCHLEVEL)
>   p += sprintf (p, ".%d", __GNUC_PATCHLEVEL);
>   cout << "Yes, I am defined\n";
> #endif
>
>   puts (buf);
>   return (0);
> }
>


Why so complicated?

gcc -dM -E -x c /dev/null

will show all default defines for C. Similary using '-x c++' instead of '-x c' 
You get the same about C++.

Here is what I'm getting for DJGPP (-x c)

#define __HAVE_BUILTIN_SETJMP__ 1
#define __unix__ 1
#define unix 1
#define __i386__ 1
#define __SIZE_TYPE__ long unsigned int
#define __GNUC_PATCHLEVEL__ 1
#define __DJGPP 2
#define __USER_LABEL_PREFIX__ _
#define __tune_pentium__ 1
#define __STDC_HOSTED__ 1
#define __MSDOS__ 1
#define DJGPP 2
#define __WCHAR_TYPE__ short unsigned int
#define __DJGPP__ 2
#define __WINT_TYPE__ int
#define __GNUC__ 3
#define __tune_i586__ 1
#define __DJGPP_MINOR__ 4
#define __GXX_ABI_VERSION 102
#define __GO32__ 1
#define i386 1
#define GO32 1
#define __GNUC_MINOR__ 2
#define DJGPP_MINOR 4
#define __STDC__ 1
#define __PTRDIFF_TYPE__ int
#define MSDOS 1
#define __DJGPP_MINOR 4
#define __REGISTER_PREFIX__ 
#define __NO_INLINE__ 1
#define __i386 1
#define __VERSION__ "3.2.1"

and also under Linux:

bash-2.05b$ gcc -dM -E -x c /dev/null
#define __HAVE_BUILTIN_SETJMP__ 1
#define __unix__ 1
#define unix 1
#define __i386__ 1
#define __SIZE_TYPE__ unsigned int
#define __ELF__ 1
#define __GNUC_PATCHLEVEL__ 1
#define __linux 1
#define __unix 1
#define __linux__ 1
#define __USER_LABEL_PREFIX__
#define linux 1
#define __STDC_HOSTED__ 1
#define __WCHAR_TYPE__ long int
#define __gnu_linux__ 1
#define __WINT_TYPE__ unsigned int
#define __GNUC__ 3
#define __GXX_ABI_VERSION 102
#define i386 1
#define __GNUC_MINOR__ 2
#define __STDC__ 1
#define __PTRDIFF_TYPE__ int
#define __tune_i386__ 1
#define __REGISTER_PREFIX__
#define __NO_INLINE__ 1
#define __i386 1
#define __VERSION__ "3.2.1"

So it seems You have forgotten trailing '__'

Andris