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authorUlrich Drepper <drepper@redhat.com>2004-11-26 08:16:33 +0000
committerUlrich Drepper <drepper@redhat.com>2004-11-26 08:16:33 +0000
commit28f367c4e3da4bd7515d11390514dbf2b751eda9 (patch)
tree9b7d054c4707f0528f80eaf7d46e26c84e9f0b67
parent90692538658ce0c42abacb0c053c7e88bc5d649d (diff)
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Update.
* posix/Makefile (install-others): Add $(inst_libexecdir)/getconf. (CFLAGS-sysconf.c): Add -D_GETCONF_DIR. (CFLAGS-getconf.c): New. ($(inst_libexecdir)/getconf): New. * posix/confstr.c (confstr): Use __sysconf to query specifications that don't have _POSIX_V6_* macros defined. Use __*_{C,LD}FLAGS macros defined in bits/environments.h. * sysdeps/posix/sysconf.c: Include stdlib.h, string.h and sys/stat.h. (__sysconf_check_spec): New routine. (__sysconf): Use it. * posix/getconf.c (specs): Change into structure array. (main): If -v is not given, try to get default from $(libexecdir)/getconf/default. If specification is not supported by this getconf, try to execute $(libexecdir)/getconf/$(specification). * sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h: New file. * sysdeps/unix/sysv/linux/s390/bits/environments.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/environments.h: New file. * sysdeps/unix/sysv/linux/sparc/bits/environments.h: New file. * sysdeps/unix/sysv/linux/i386/bits/environments.h: New file. * sysdeps/unix/sysv/linux/x86_64/bits/environments.h: New file. * sysdeps/generic/bits/environments.h (__ILP32_OFFBIG_CFLAGS): Define. 2004-11-26 Jakub Jelinek <jakub@redhat.com>
-rw-r--r--ChangeLog27
-rw-r--r--bits/environments.h5
-rw-r--r--posix/Makefile14
-rw-r--r--posix/confstr.c185
-rw-r--r--posix/getconf.c73
-rw-r--r--sysdeps/generic/bits/environments.h5
-rw-r--r--sysdeps/posix/sysconf.c43
-rw-r--r--sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h72
-rw-r--r--sysdeps/unix/sysv/linux/i386/bits/environments.h62
-rw-r--r--sysdeps/unix/sysv/linux/powerpc/bits/environments.h87
-rw-r--r--sysdeps/unix/sysv/linux/s390/bits/environments.h87
-rw-r--r--sysdeps/unix/sysv/linux/sparc/bits/environments.h87
-rw-r--r--sysdeps/unix/sysv/linux/x86_64/bits/environments.h87
13 files changed, 763 insertions, 71 deletions
diff --git a/ChangeLog b/ChangeLog
index e04b490..b519ffd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,32 @@
2004-11-26 Jakub Jelinek <jakub@redhat.com>
+ * posix/Makefile (install-others): Add $(inst_libexecdir)/getconf.
+ (CFLAGS-sysconf.c): Add -D_GETCONF_DIR.
+ (CFLAGS-getconf.c): New.
+ ($(inst_libexecdir)/getconf): New.
+ * posix/confstr.c (confstr): Use __sysconf to query specifications
+ that don't have _POSIX_V6_* macros defined. Use __*_{C,LD}FLAGS
+ macros defined in bits/environments.h.
+ * sysdeps/posix/sysconf.c: Include stdlib.h, string.h and
+ sys/stat.h.
+ (__sysconf_check_spec): New routine.
+ (__sysconf): Use it.
+ * posix/getconf.c (specs): Change into structure array.
+ (main): If -v is not given, try to get default from
+ $(libexecdir)/getconf/default. If specification is not
+ supported by this getconf, try to execute
+ $(libexecdir)/getconf/$(specification).
+ * sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h: New file.
+ * sysdeps/unix/sysv/linux/s390/bits/environments.h: New file.
+ * sysdeps/unix/sysv/linux/powerpc/bits/environments.h: New file.
+ * sysdeps/unix/sysv/linux/sparc/bits/environments.h: New file.
+ * sysdeps/unix/sysv/linux/i386/bits/environments.h: New file.
+ * sysdeps/unix/sysv/linux/x86_64/bits/environments.h: New file.
+ * sysdeps/generic/bits/environments.h (__ILP32_OFFBIG_CFLAGS):
+ Define.
+
+2004-11-26 Jakub Jelinek <jakub@redhat.com>
+
* stdlib/stdlib.h (setenv): Use nonnull only for second argument.
(unsetenv): Remove.
diff --git a/bits/environments.h b/bits/environments.h
index c382992..4617dc4 100644
--- a/bits/environments.h
+++ b/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004 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
@@ -72,4 +72,7 @@
# define _XBS5_LP64_OFF64 -1
# define _XBS5_LPBIG_OFFBIG -1
+/* CFLAGS. */
+#define __ILP32_OFFBIG_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+
#endif /* __WORDSIZE == 32 */
diff --git a/posix/Makefile b/posix/Makefile
index c89cfc0..faee4bb 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -91,6 +91,7 @@ tests += wordexp-test tst-exec tst-spawn
endif
others := getconf
install-bin := getconf
+install-others := $(inst_libexecdir)/getconf
before-compile := testcases.h ptestcases.h
@@ -138,7 +139,7 @@ CFLAGS-waitid.c = -fexceptions
CFLAGS-waitpid.c = -fexceptions -fasynchronous-unwind-tables
CFLAGS-getopt.c = -fexceptions
CFLAGS-wordexp.c = -fexceptions
-CFLAGS-sysconf.c = -fexceptions
+CFLAGS-sysconf.c = -fexceptions -DGETCONF_DIR='"$(libexecdir)/getconf"'
CFLAGS-pathconf.c = -fexceptions
CFLAGS-fpathconf.c = -fexceptions
CFLAGS-spawn.c = -fexceptions
@@ -147,6 +148,7 @@ CFLAGS-spawni.c = -fexceptions
CFLAGS-pause.c = -fexceptions
CFLAGS-glob.c = $(uses-callbacks) -fexceptions
CFLAGS-glob64.c = $(uses-callbacks) -fexceptions
+CFLAGS-getconf.c = -DGETCONF_DIR='"$(libexecdir)/getconf"'
tstgetopt-ARGS = -a -b -cfoobar --required foobar --optional=bazbug \
--none random --col --color --colour
@@ -260,3 +262,13 @@ bug-glob2-ENV = MALLOC_TRACE=$(objpfx)bug-glob2.mtrace
$(objpfx)bug-glob2-mem: $(objpfx)bug-glob2.out
$(common-objpfx)malloc/mtrace $(objpfx)bug-glob2.mtrace > $@
+
+$(inst_libexecdir)/getconf: $(objpfx)getconf FORCE
+ $(addprefix $(..)./scripts/mkinstalldirs ,\
+ $(filter-out $(wildcard $@),$@))
+ for spec in `LC_ALL=C GETCONF_DIR=/dev/null \
+ $(run-program-prefix) $< \
+ _POSIX_V6_WIDTH_RESTRICTED_ENVS`; do \
+ $(INSTALL_PROGRAM) $< $@/$$spec.new; \
+ mv -f $@/$$spec.new $@/$$spec; \
+ done
diff --git a/posix/confstr.c b/posix/confstr.c
index ace60fd..6b0dcf0 100644
--- a/posix/confstr.c
+++ b/posix/confstr.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1991,96,97,2000-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1996, 1997, 2000-2002, 2003, 2004
+ 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
@@ -54,50 +55,153 @@ confstr (name, buf, len)
Currently this means all environment which the system allows. */
{
- static const char restenvs[] =
-#if _POSIX_V6_ILP32_OFF32 > 0
- "_POSIX_V6_ILP32_OFF32"
+ char restenvs[4 * sizeof "_POSIX_V6_LPBIG_OFFBIG"];
+
+ string_len = 0;
+#ifndef _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) > 0)
#endif
-#if _POSIX_V6_ILP32_OFFBIG > 0
-# if _POSIX_V6_ILP32_OFF32 > 0
- "\n"
-# endif
- "_POSIX_V6_ILP32_OFFBIG"
+#if !defined _POSIX_V6_ILP32_OFF32 || _POSIX_V6_ILP32_OFF32 > 0
+ {
+ memcpy (restenvs + string_len, "_POSIX_V6_ILP32_OFF32",
+ sizeof "_POSIX_V6_ILP32_OFF32" - 1);
+ string_len += sizeof "_POSIX_V6_ILP32_OFF32" - 1;
+ }
#endif
-#if _POSIX_V6_LP64_OFF64 > 0
-# if _POSIX_V6_ILP32_OFF32 > 0 || _POSIX_V6_ILP32_OFFBIG > 0
- "\n"
-# endif
- "_POSIX_V6_LP64_OFF64"
+#ifndef _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) > 0)
#endif
-#if _POSIX_V6_LPBIG_OFFBIG > 0
-# if _POSIX_V6_ILP32_OFF32 > 0 || _POSIX_V6_ILP32_OFFBIG > 0 \
- || _POSIX_V6_LP64_OFF64 > 0
- "\n"
-# endif
- "_POSIX_V6_LPBIG_OFFBIG"
+#if !defined _POSIX_V6_ILP32_OFFBIG || _POSIX_V6_ILP32_OFFBIG > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_ILP32_OFFBIG",
+ sizeof "_POSIX_V6_ILP32_OFFBIG" - 1);
+ string_len += sizeof "_POSIX_V6_ILP32_OFFBIG" - 1;
+ }
+#endif
+#ifndef _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) > 0)
+#endif
+#if !defined _POSIX_V6_LP64_OFF64 || _POSIX_V6_LP64_OFF64 > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_LP64_OFF64",
+ sizeof "_POSIX_V6_LP64_OFF64" - 1);
+ string_len += sizeof "_POSIX_V6_LP64_OFF64" - 1;
+ }
+#endif
+#ifndef _POSIX_V6_LPBIG_OFFBIG
+ if (__sysconf (_SC_V6_LPBIG_OFFBIG) > 0)
+#endif
+#if !defined _POSIX_V6_LPBIG_OFFBIG || _POSIX_V6_LPBIG_OFFBIG > 0
+ {
+ if (string_len)
+ restenvs[string_len++] = '\n';
+ memcpy (restenvs + string_len, "_POSIX_V6_LPBIG_OFFBIG",
+ sizeof "_POSIX_V6_LPBIG_OFFBIG" - 1);
+ string_len += sizeof "_POSIX_V6_LPBIG_OFFBIG" - 1;
+ }
#endif
- ;
+ restenvs[string_len++] = '\0';
string = restenvs;
- string_len = sizeof (restenvs);
}
break;
+ case _CS_XBS5_ILP32_OFF32_CFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
+#ifdef __ILP32_OFF32_CFLAGS
+# if _POSIX_V6_ILP32_OFF32 == -1
+# error __ILP32_OFF32_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) < 0)
+ break;
+# endif
+ string = __ILP32_OFF32_CFLAGS;
+ string_len = sizeof (__ILP32_OFF32_CFLAGS);
+#endif
+ break;
+
case _CS_XBS5_ILP32_OFFBIG_CFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS:
+#ifdef __ILP32_OFFBIG_CFLAGS
+# if _POSIX_V6_ILP32_OFFBIG == -1
+# error __ILP32_OFFBIG_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) < 0)
+ break;
+# endif
+ string = __ILP32_OFFBIG_CFLAGS;
+ string_len = sizeof (__ILP32_OFFBIG_CFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_LP64_OFF64_CFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
+#ifdef __LP64_OFF64_CFLAGS
+# if _POSIX_V6_LP64_OFF64 == -1
+# error __LP64_OFF64_CFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) < 0)
+ break;
+# endif
+ string = __LP64_OFF64_CFLAGS;
+ string_len = sizeof (__LP64_OFF64_CFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_ILP32_OFF32_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
+#ifdef __ILP32_OFF32_LDFLAGS
+# if _POSIX_V6_ILP32_OFF32 == -1
+# error __ILP32_OFF32_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFF32
+ if (__sysconf (_SC_V6_ILP32_OFF32) < 0)
+ break;
+# endif
+ string = __ILP32_OFF32_LDFLAGS;
+ string_len = sizeof (__ILP32_OFF32_LDFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_ILP32_OFFBIG_LDFLAGS:
+ case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
+#ifdef __ILP32_OFFBIG_LDFLAGS
+# if _POSIX_V6_ILP32_OFFBIG == -1
+# error __ILP32_OFFBIG_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_ILP32_OFFBIG
+ if (__sysconf (_SC_V6_ILP32_OFFBIG) < 0)
+ break;
+# endif
+ string = __ILP32_OFFBIG_LDFLAGS;
+ string_len = sizeof (__ILP32_OFFBIG_LDFLAGS);
+#endif
+ break;
+
+ case _CS_XBS5_LP64_OFF64_LDFLAGS:
+ case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
+#ifdef __LP64_OFF64_LDFLAGS
+# if _POSIX_V6_LP64_OFF64 == -1
+# error __LP64_OFF64_LDFLAGS shouldn't be defined
+# elif !defined _POSIX_V6_LP64_OFF64
+ if (__sysconf (_SC_V6_LP64_OFF64) < 0)
+ break;
+# endif
+ string = __LP64_OFF64_LDFLAGS;
+ string_len = sizeof (__LP64_OFF64_LDFLAGS);
+#endif
+ break;
+
case _CS_LFS_CFLAGS:
case _CS_LFS_LINTFLAGS:
-#if _XBS5_LP64_OFF64 == -1 && _XBS5_LPBIG_OFFBIG == -1 && _XBS5_ILP32_OFFBIG == 1
+#if _POSIX_V6_ILP32_OFF32 == 1 && _POSIX_V6_ILP32_OFFBIG == 1
+# define __LFS_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
/* Signal that we want the new ABI. */
- {
- static const char file_offset[]
- = "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64";
- string = file_offset;
- string_len = sizeof (file_offset);
- }
- break;
+ string = __LFS_CFLAGS;
+ string_len = sizeof (__LFS_CFLAGS);
#endif
- /* FALLTHROUGH */
+ break;
case _CS_LFS_LDFLAGS:
case _CS_LFS_LIBS:
@@ -106,12 +210,9 @@ confstr (name, buf, len)
case _CS_LFS64_CFLAGS:
case _CS_LFS64_LINTFLAGS:
- if (sizeof (off_t) != sizeof (off64_t))
- {
- static const char lf64_source[] = "-D_LARGEFILE64_SOURCE";
- string = lf64_source;
- string_len = sizeof (lf64_source);
- }
+#define __LFS64_CFLAGS "-D_LARGEFILE64_SOURCE"
+ string = __LFS64_CFLAGS;
+ string_len = sizeof (__LFS64_CFLAGS);
break;
case _CS_LFS64_LDFLAGS:
@@ -119,15 +220,10 @@ confstr (name, buf, len)
/* No special libraries or linker flags needed. */
break;
- case _CS_XBS5_ILP32_OFF32_CFLAGS:
- case _CS_XBS5_ILP32_OFF32_LDFLAGS:
case _CS_XBS5_ILP32_OFF32_LIBS:
case _CS_XBS5_ILP32_OFF32_LINTFLAGS:
- case _CS_XBS5_ILP32_OFFBIG_LDFLAGS:
case _CS_XBS5_ILP32_OFFBIG_LIBS:
case _CS_XBS5_ILP32_OFFBIG_LINTFLAGS:
- case _CS_XBS5_LP64_OFF64_CFLAGS:
- case _CS_XBS5_LP64_OFF64_LDFLAGS:
case _CS_XBS5_LP64_OFF64_LIBS:
case _CS_XBS5_LP64_OFF64_LINTFLAGS:
case _CS_XBS5_LPBIG_OFFBIG_CFLAGS:
@@ -135,15 +231,10 @@ confstr (name, buf, len)
case _CS_XBS5_LPBIG_OFFBIG_LIBS:
case _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS:
- case _CS_POSIX_V6_ILP32_OFF32_CFLAGS:
- case _CS_POSIX_V6_ILP32_OFF32_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFF32_LIBS:
case _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS:
- case _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS:
case _CS_POSIX_V6_ILP32_OFFBIG_LIBS:
case _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS:
- case _CS_POSIX_V6_LP64_OFF64_CFLAGS:
- case _CS_POSIX_V6_LP64_OFF64_LDFLAGS:
case _CS_POSIX_V6_LP64_OFF64_LIBS:
case _CS_POSIX_V6_LP64_OFF64_LINTFLAGS:
case _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS:
diff --git a/posix/getconf.c b/posix/getconf.c
index 2f68003..6175dfe 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -917,12 +917,12 @@ static const struct conf vars[] =
};
-static const char *specs[] =
+static struct { const char *name; int num; } specs[] =
{
- "POSIX_V6_ILP32_OFF32",
- "POSIX_V6_ILP32_OFFBIG",
- "POSIX_V6_LP64_OFF64",
- "POSIX_V6_LPBIG_OFFBIG"
+ { "POSIX_V6_ILP32_OFF32", _SC_V6_ILP32_OFF32 },
+ { "POSIX_V6_ILP32_OFFBIG", _SC_V6_ILP32_OFFBIG },
+ { "POSIX_V6_LP64_OFF64", _SC_V6_LP64_OFF64 },
+ { "POSIX_V6_LPBIG_OFFBIG", _SC_V6_LPBIG_OFFBIG }
};
static const int nspecs = sizeof (specs) / sizeof (specs[0]);
@@ -963,11 +963,14 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
return 0;
}
+ const char *getconf_dir = getenv ("GETCONF_DIR") ?: GETCONF_DIR;
+ size_t getconf_dirlen = strlen (getconf_dir);
+
+ const char *spec = NULL;
+ char buf[sizeof "POSIX_V6_LPBIG_OFFBIG"];
+ char *argv0 = argv[0];
if (argc > 1 && strncmp (argv[1], "-v", 2) == 0)
{
- const char *spec;
- int i;
-
if (argv[1][2] == '\0')
{
if (argc < 3)
@@ -983,18 +986,62 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
argv += 1;
argc += 1;
}
+ }
+ else
+ {
+ char default_name[getconf_dirlen + sizeof "/default"];
+ memcpy (mempcpy (default_name, getconf_dir, getconf_dirlen),
+ "/default", sizeof "/default");
+ int len = readlink (default_name, buf, sizeof buf - 1);
+ if (len > 0)
+ {
+ buf[len] = '\0';
+ spec = buf;
+ }
+ }
- /* Check for the specifications we know. This is simple in the
- moment. */
+ /* Check for the specifications we know. */
+ if (spec != NULL)
+ {
+ int i;
for (i = 0; i < nspecs; ++i)
- if (strcmp (spec, specs[i]) == 0)
+ if (strcmp (spec, specs[i].name) == 0)
break;
if (i == nspecs)
error (2, 0, _("unknown specification \"%s\""), spec);
- /* And now we forget the specification. We don't do anything different
- with or without it. */
+ switch (specs[i].num)
+ {
+#ifndef _POSIX_V6_ILP32_OFF32
+ case _SC_V6_ILP32_OFF32:
+#endif
+#ifndef _POSIX_V6_ILP32_OFFBIG
+ case _SC_V6_ILP32_OFFBIG:
+#endif
+#ifndef _POSIX_V6_LP64_OFF64
+ case _SC_V6_LP64_OFF64:
+#endif
+#ifndef _POSIX_V6_LPBIG_OFFBIG
+ case _SC_V6_LPBIG_OFFBIG:
+#endif
+ {
+ const char *args[argc + 3];
+ size_t spec_len = strlen (spec);
+ char getconf_name[getconf_dirlen + 2 + spec_len + 1];
+ memcpy (mempcpy (mempcpy (getconf_name, getconf_dir,
+ getconf_dirlen),
+ "/_", 2), spec, spec_len + 1);
+ args[0] = argv0;
+ args[1] = "-v";
+ args[2] = spec;
+ memcpy (&args[3], &argv[1], argc * sizeof (argv[1]));
+ execv (getconf_name, (char * const *) args);
+ error (4, errno, _("Couldn't execute %s"), getconf_name);
+ }
+ default:
+ break;
+ }
}
if (argc < 2 || argc > 3)
diff --git a/sysdeps/generic/bits/environments.h b/sysdeps/generic/bits/environments.h
index c382992..4617dc4 100644
--- a/sysdeps/generic/bits/environments.h
+++ b/sysdeps/generic/bits/environments.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2001, 2004 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
@@ -72,4 +72,7 @@
# define _XBS5_LP64_OFF64 -1
# define _XBS5_LPBIG_OFFBIG -1
+/* CFLAGS. */
+#define __ILP32_OFFBIG_CFLAGS "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+
#endif /* __WORDSIZE == 32 */
diff --git a/sysdeps/posix/sysconf.c b/sysdeps/posix/sysconf.c
index d1286a0..de81c21 100644
--- a/sysdeps/posix/sysconf.c
+++ b/sysdeps/posix/sysconf.c
@@ -23,14 +23,20 @@
#include <pwd.h>
#include <stddef.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/param.h>
+#include <sys/stat.h>
#include <sys/sysinfo.h>
#include <sys/types.h>
#include <regex.h>
+static long int __sysconf_check_spec (const char *spec);
+
+
/* Get the value of the system variable NAME. */
long int
__sysconf (name)
@@ -781,50 +787,50 @@ __sysconf (name)
#ifdef _XBS5_ILP32_OFF32
return _XBS5_ILP32_OFF32;
#else
- return -1;
+ return __sysconf_check_spec ("ILP32_OFF32");
#endif
case _SC_XBS5_ILP32_OFFBIG:
#ifdef _XBS5_ILP32_OFFBIG
return _XBS5_ILP32_OFFBIG;
#else
- return -1;
+ return __sysconf_check_spec ("ILP32_OFFBIG");
#endif
case _SC_XBS5_LP64_OFF64:
#ifdef _XBS5_LP64_OFF64
return _XBS5_LP64_OFF64;
#else
- return -1;
+ return __sysconf_check_spec ("LP64_OFF64");
#endif
case _SC_XBS5_LPBIG_OFFBIG:
#ifdef _XBS5_LPBIG_OFFBIG
return _XBS5_LPBIG_OFFBIG;
#else
- return -1;
+ return __sysconf_check_spec ("LPBIG_OFFBIG");
#endif
case _SC_V6_ILP32_OFF32:
#ifdef _POSIX_V6_ILP32_OFF32
return _POSIX_V6_ILP32_OFF32;
#else
- return -1;
+ return __sysconf_check_spec ("ILP32_OFF32");
#endif
case _SC_V6_ILP32_OFFBIG:
#ifdef _POSIX_V6_ILP32_OFFBIG
return _POSIX_V6_ILP32_OFFBIG;
#else
- return -1;
+ return __sysconf_check_spec ("ILP32_OFFBIG");
#endif
case _SC_V6_LP64_OFF64:
#ifdef _POSIX_V6_LP64_OFF64
return _POSIX_V6_LP64_OFF64;
#else
- return -1;
+ return __sysconf_check_spec ("LP64_OFF64");
#endif
case _SC_V6_LPBIG_OFFBIG:
#ifdef _POSIX_V6_LPBIG_OFFBIG
return _POSIX_V6_LPBIG_OFFBIG;
#else
- return -1;
+ return __sysconf_check_spec ("LPBIG_OFFBIG");
#endif
case _SC_XOPEN_LEGACY:
@@ -1189,3 +1195,24 @@ __sysconf (name)
#undef __sysconf
weak_alias (__sysconf, sysconf)
libc_hidden_def (__sysconf)
+
+static long int
+__sysconf_check_spec (const char *spec)
+{
+ int save_errno = errno;
+
+ const char *getconf_dir = __secure_getenv ("GETCONF_DIR") ?: GETCONF_DIR;
+ size_t getconf_dirlen = strlen (getconf_dir);
+ size_t speclen = strlen (spec);
+
+ char name[getconf_dirlen + sizeof ("/_POSIX_V6_") + speclen];
+ memcpy (mempcpy (mempcpy (name, getconf_dir, getconf_dirlen),
+ "/_POSIX_V6_", sizeof ("/_POSIX_V6_") - 1),
+ spec, speclen + 1);
+
+ struct stat64 st;
+ long int ret = __xstat64 (_STAT_VER, name, &st) >= 0 ? 1 : -1;
+
+ __set_errno (save_errno);
+ return ret;
+}
diff --git a/sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h b/sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h
new file mode 100644
index 0000000..92112b5
--- /dev/null
+++ b/sysdeps/unix/bsd/bsd4.4/freebsd/bits/environments.h
@@ -0,0 +1,72 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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
+
+/* We can never provide environments with 32-bit wide pointers. */
+# define _POSIX_V6_ILP32_OFF32 -1
+# define _POSIX_V6_ILP32_OFFBIG -1
+# define _XBS5_ILP32_OFF32 -1
+# define _XBS5_ILP32_OFFBIG -1
+/* We also have no use (for now) for an environment with bigger pointers
+ and offsets. */
+# 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_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers
+ and 64-bit `off_t'. */
+# define _POSIX_V6_ILP32_OFF32 -1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFF32 -1
+# define _XBS5_ILP32_OFFBIG 1
+
+/* We can never provide environments with 64-bit wide pointers. */
+# define _POSIX_V6_LP64_OFF64 -1
+# define _POSIX_V6_LPBIG_OFFBIG -1
+# define _XBS5_LP64_OFF64 -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+#endif /* __WORDSIZE == 32 */
diff --git a/sysdeps/unix/sysv/linux/i386/bits/environments.h b/sysdeps/unix/sysv/linux/i386/bits/environments.h
new file mode 100644
index 0000000..16f7732
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/bits/environments.h
@@ -0,0 +1,62 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _UNISTD_H
+# error "Never include this file directly. Use <unistd.h> instead"
+#endif
+
+/* 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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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.
+*/
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+ and all platforms support LFS. */
+#define _POSIX_V6_ILP32_OFF32 1
+#define _POSIX_V6_ILP32_OFFBIG 1
+#define _XBS5_ILP32_OFF32 1
+#define _XBS5_ILP32_OFFBIG 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. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # 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. */
+
+#define __ILP32_OFF32_CFLAGS "-m32"
+#define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS "-m32"
+#define __ILP32_OFFBIG_LDFLAGS "-m32"
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/environments.h b/sysdeps/unix/sysv/linux/powerpc/bits/environments.h
new file mode 100644
index 0000000..a51a564
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/environments.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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_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_V6_LPBIG_OFFBIG -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'. */
+# define _POSIX_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+ and all platforms support LFS. */
+# define _POSIX_V6_ILP32_OFF32 1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFF32 1
+# define _XBS5_ILP32_OFFBIG 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. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # 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_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS "-m32"
+#define __ILP32_OFFBIG_LDFLAGS "-m32"
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"
diff --git a/sysdeps/unix/sysv/linux/s390/bits/environments.h b/sysdeps/unix/sysv/linux/s390/bits/environments.h
new file mode 100644
index 0000000..713d21c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/bits/environments.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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_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_V6_LPBIG_OFFBIG -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'. */
+# define _POSIX_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+ and all platforms support LFS. */
+# define _POSIX_V6_ILP32_OFF32 1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFF32 1
+# define _XBS5_ILP32_OFFBIG 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. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # 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 "-m31"
+#define __ILP32_OFFBIG_CFLAGS "-m31 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS "-m31"
+#define __ILP32_OFFBIG_LDFLAGS "-m31"
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/environments.h b/sysdeps/unix/sysv/linux/sparc/bits/environments.h
new file mode 100644
index 0000000..a51a564
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sparc/bits/environments.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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_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_V6_LPBIG_OFFBIG -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'. */
+# define _POSIX_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+ and all platforms support LFS. */
+# define _POSIX_V6_ILP32_OFF32 1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFF32 1
+# define _XBS5_ILP32_OFFBIG 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. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # 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_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS "-m32"
+#define __ILP32_OFFBIG_LDFLAGS "-m32"
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/environments.h b/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
new file mode 100644
index 0000000..a51a564
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/environments.h
@@ -0,0 +1,87 @@
+/* Copyright (C) 1999, 2001, 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type
+ _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type
+
+ _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type
+ _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type
+
+ The macros _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_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_V6_LPBIG_OFFBIG -1
+# define _XBS5_LPBIG_OFFBIG -1
+
+/* By default we have 64-bit wide `long int', pointers and `off_t'. */
+# define _POSIX_V6_LP64_OFF64 1
+# define _XBS5_LP64_OFF64 1
+
+#else /* __WORDSIZE == 32 */
+
+/* By default we have 32-bit wide `int', `long int', pointers and `off_t'
+ and all platforms support LFS. */
+# define _POSIX_V6_ILP32_OFF32 1
+# define _POSIX_V6_ILP32_OFFBIG 1
+# define _XBS5_ILP32_OFF32 1
+# define _XBS5_ILP32_OFFBIG 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. */
+
+/* Environments with 64-bit wide pointers can be provided,
+ so these macros aren't defined:
+ # 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_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
+#define __ILP32_OFF32_LDFLAGS "-m32"
+#define __ILP32_OFFBIG_LDFLAGS "-m32"
+#define __LP64_OFF64_CFLAGS "-m64"
+#define __LP64_OFF64_LDFLAGS "-m64"