diff options
Diffstat (limited to 'bits/environments.h')
| -rw-r--r-- | bits/environments.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/bits/environments.h b/bits/environments.h index 8ed19906b4..f3af20655a 100644 --- a/bits/environments.h +++ b/bits/environments.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997 Free Software Foundation, Inc. +/* Copyright (C) 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -20,6 +20,8 @@ # error "Never include this file directly. Use <unistd.h> instead" #endif +#include <bits/wordsize.h> + /* This header should define the following symbols under the described situations. A value `1' means that the model is always supported, `-1' means it is never supported. Undefined means it cannot be @@ -32,4 +34,26 @@ _XBS5_LPBIG_OFFBIG 64bit long and pointers and large off_t type */ -#endif /* environments.h */ +#if __WORDSIZE == 64 + +/* We can never provide environments with 32-bit wide pointers. */ +# define _XBS5_ILP32_OFF32 -1 +# define _XBS5_ILP32_OFFBIG -1 + +/* By default we have 64-bit wide `long int', pointers and `off_t'. */ +# define _XBS5_LP64_OFF32 1 +# define _XBS5_LPBIG_OFFBIG 1 + +#else /* __WORDSIZE == 32 */ + +/* By default we have 32-bit wide `int', `long int', pointers and `off_t'. */ +# define _XBS5_ILP32_OFF32 1 + +/* We optionally provide an environment with the above size but an 64-bit + side `off_t'. Therefore we don't define _XBS5_ILP32_OFFBIG. */ + +/* We can never provide environments with 64-bit wide pointers. */ +# define _XBS5_LP64_OFF64 -1 +# define _XBS5_LPBIG_OFFBIG -1 + +#endif /* __WORDSIZE == 32 */ |