--- /dev/null
+/* Copyright (C) 1999-2018 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _UNISTD_H
+# 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
+ statically decided.
+
+ _POSIX_V7_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V7_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V7_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V7_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
+ _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
+ _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
+ used in previous versions of the Unix standard and are available
+ only for compatibility.
+*/
+
+#if __WORDSIZE == 64
+
+/* Environments with 32-bit wide pointers are optionally provided.
+ Therefore following macros aren't defined:
+ # undef _POSIX_V7_ILP32_OFF32
+ # undef _POSIX_V7_ILP32_OFFBIG
+ # undef _POSIX_V6_ILP32_OFF32
+ # undef _POSIX_V6_ILP32_OFFBIG
+ # undef _XBS5_ILP32_OFF32
+ # undef _XBS5_ILP32_OFFBIG
+ and users need to check at runtime. */
+
+/* We also have no use (for now) for an environment with bigger pointers
+ and offsets. */
+# define _POSIX_V7_LPBIG_OFFBIG -1
+# define _POSIX_V6_LPBIG_OFFBIG -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'. */
+# define _POSIX_V7_LP64_OFF64 1
+# define _POSIX_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* We have 32-bit wide `int', `long int' and pointers and all platforms
+ support LFS. -mx32 has 64-bit wide `off_t'. */
+# define _POSIX_V7_ILP32_OFFBIG 1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFFBIG 1
+
+# ifndef __x86_64__
+/* -m32 has 32-bit wide `off_t'. */
+# define _POSIX_V7_ILP32_OFF32 1
+# define _POSIX_V6_ILP32_OFF32 1
+# define _XBS5_ILP32_OFF32 1
+# endif
+
+/* We optionally provide an environment with the above size but an 64-bit
+ side `off_t'. Therefore we don't define _POSIX_V7_ILP32_OFFBIG. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # undef _POSIX_V7_LP64_OFF64
+ # undef _POSIX_V7_LPBIG_OFFBIG
+ # undef _POSIX_V6_LP64_OFF64
+ # undef _POSIX_V6_LPBIG_OFFBIG
+ # undef _XBS5_LP64_OFF64
+ # undef _XBS5_LPBIG_OFFBIG
+ and sysconf tests for it at runtime. */
+
+#endif /* __WORDSIZE == 32 */
+
+#define __ILP32_OFF32_CFLAGS "-m32"
+#define __ILP32_OFF32_LDFLAGS "-m32"
+#if defined __x86_64__ && defined __ILP32__
+# define __ILP32_OFFBIG_CFLAGS "-mx32"
+# define __ILP32_OFFBIG_LDFLAGS "-mx32"
+#else
+# define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+# define __ILP32_OFFBIG_LDFLAGS "-m32"
+#endif
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"
projects / cross.git / blobdiff