1 /* Copyright (C) 1999, 2001, 2004 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
19 # error "Never include this file directly. Use <unistd.h> instead"
22 #include <bits/wordsize.h>
24 /* This header should define the following symbols under the described
25 situations. A value `1' means that the model is always supported,
26 `-1' means it is never supported. Undefined means it cannot be
29 _POSIX_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
30 _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
32 _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
33 _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
35 The macros _XBS5_ILP32_OFF32, _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and
36 _XBS5_LPBIG_OFFBIG were used in previous versions of the Unix standard
37 and are available only for compatibility.
42 /* Environments with 32-bit wide pointers are optionally provided.
43 Therefore following macros aren't defined:
44 # undef _POSIX_V6_ILP32_OFF32
45 # undef _POSIX_V6_ILP32_OFFBIG
46 # undef _XBS5_ILP32_OFF32
47 # undef _XBS5_ILP32_OFFBIG
48 and users need to check at runtime. */
50 /* We also have no use (for now) for an environment with bigger pointers
52 # define _POSIX_V6_LPBIG_OFFBIG -1
53 # define _XBS5_LPBIG_OFFBIG -1
55 /* By default we have 64-bit wide `long int', pointers and `off_t'. */
56 # define _POSIX_V6_LP64_OFF64 1
57 # define _XBS5_LP64_OFF64 1
59 #else /* __WORDSIZE == 32 */
61 /* By default we have 32-bit wide `int', `long int', pointers and `off_t'
62 and all platforms support LFS. */
63 # define _POSIX_V6_ILP32_OFF32 1
64 # define _POSIX_V6_ILP32_OFFBIG 1
65 # define _XBS5_ILP32_OFF32 1
66 # define _XBS5_ILP32_OFFBIG 1
68 /* We optionally provide an environment with the above size but an 64-bit
69 side `off_t'. Therefore we don't define _XBS5_ILP32_OFFBIG. */
71 /* Environments with 64-bit wide pointers can be provided,
72 so these macros aren't defined:
73 # undef _POSIX_V6_LP64_OFF64
74 # undef _POSIX_V6_LPBIG_OFFBIG
75 # undef _XBS5_LP64_OFF64
76 # undef _XBS5_LPBIG_OFFBIG
77 and sysconf tests for it at runtime. */
79 #endif /* __WORDSIZE == 32 */
81 #define __ILP32_OFF32_CFLAGS "-m32"
82 #define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
83 #define __ILP32_OFF32_LDFLAGS "-m32"
84 #define __ILP32_OFFBIG_LDFLAGS "-m32"
85 #define __LP64_OFF64_CFLAGS "-m64"
86 #define __LP64_OFF64_LDFLAGS "-m64"