version 1.1.1.1, 2012/05/29 09:29:44
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version 1.1.1.2, 2021/03/17 13:38:46
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# Enable large files on systems where this is not the default. |
# Enable large files on systems where this is not the default. |
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# Copyright 1992-1996, 1998-2011 Free Software Foundation, Inc. | # Copyright 1992-1996, 1998-2019 Free Software Foundation, Inc. |
# This file is free software; the Free Software Foundation |
# This file is free software; the Free Software Foundation |
# gives unlimited permission to copy and/or distribute it, |
# gives unlimited permission to copy and/or distribute it, |
# with or without modifications, as long as this notice is preserved. |
# with or without modifications, as long as this notice is preserved. |
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# The following implementation works around a problem in autoconf <= 2.68; | # The following implementation works around a problem in autoconf <= 2.69; |
# AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5. | # AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5, |
m4_version_prereq([2.69], [] ,[ | # or configures them incorrectly in some cases. |
| m4_version_prereq([2.70], [] ,[ |
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# _AC_SYS_LARGEFILE_TEST_INCLUDES |
# _AC_SYS_LARGEFILE_TEST_INCLUDES |
# ------------------------------- |
# ------------------------------- |
Line 19 m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES],
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Line 20 m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES],
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incorrectly reject 9223372036854775807. */ |
incorrectly reject 9223372036854775807. */ |
@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) |
@%:@define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) |
int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721 |
int off_t_is_large[[(LARGE_OFF_T % 2147483629 == 721 |
&& LARGE_OFF_T % 2147483647 == 1) | && LARGE_OFF_T % 2147483647 == 1) |
? 1 : -1]];[]dnl | ? 1 : -1]];[]dnl |
]) |
]) |
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# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, |
# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, |
# CACHE-VAR, | # CACHE-VAR, |
# DESCRIPTION, | # DESCRIPTION, |
# PROLOGUE, [FUNCTION-BODY]) | # PROLOGUE, [FUNCTION-BODY]) |
# -------------------------------------------------------- |
# -------------------------------------------------------- |
m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE], |
m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE], |
[AC_CACHE_CHECK([for $1 value needed for large files], [$3], |
[AC_CACHE_CHECK([for $1 value needed for large files], [$3], |
Line 58 rm -rf conftest*[]dnl
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Line 59 rm -rf conftest*[]dnl
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# http://www.unix-systems.org/version2/whatsnew/lfs20mar.html |
# http://www.unix-systems.org/version2/whatsnew/lfs20mar.html |
AC_DEFUN([AC_SYS_LARGEFILE], |
AC_DEFUN([AC_SYS_LARGEFILE], |
[AC_ARG_ENABLE(largefile, |
[AC_ARG_ENABLE(largefile, |
[ --disable-largefile omit support for large files]) | [ --disable-largefile omit support for large files]) |
if test "$enable_largefile" != no; then |
if test "$enable_largefile" != no; then |
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AC_CACHE_CHECK([for special C compiler options needed for large files], |
AC_CACHE_CHECK([for special C compiler options needed for large files], |
Line 67 if test "$enable_largefile" != no; then
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Line 68 if test "$enable_largefile" != no; then
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if test "$GCC" != yes; then |
if test "$GCC" != yes; then |
ac_save_CC=$CC |
ac_save_CC=$CC |
while :; do |
while :; do |
# IRIX 6.2 and later do not support large files by default, | # IRIX 6.2 and later do not support large files by default, |
# so use the C compiler's -n32 option if that helps. | # so use the C compiler's -n32 option if that helps. |
AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])]) | AC_LANG_CONFTEST([AC_LANG_PROGRAM([_AC_SYS_LARGEFILE_TEST_INCLUDES])]) |
AC_COMPILE_IFELSE([], [break]) | AC_COMPILE_IFELSE([], [break]) |
CC="$CC -n32" | CC="$CC -n32" |
AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break]) | AC_COMPILE_IFELSE([], [ac_cv_sys_largefile_CC=' -n32'; break]) |
break | break |
done |
done |
CC=$ac_save_CC |
CC=$ac_save_CC |
rm -f conftest.$ac_ext |
rm -f conftest.$ac_ext |
Line 93 if test "$enable_largefile" != no; then
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Line 94 if test "$enable_largefile" != no; then
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[_AC_SYS_LARGEFILE_TEST_INCLUDES]) |
[_AC_SYS_LARGEFILE_TEST_INCLUDES]) |
fi |
fi |
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AH_VERBATIM([_DARWIN_USE_64_BIT_INODE], | AC_DEFINE([_DARWIN_USE_64_BIT_INODE], [1], |
[/* Enable large inode numbers on Mac OS X. */ | [Enable large inode numbers on Mac OS X 10.5.]) |
#ifndef _DARWIN_USE_64_BIT_INODE | |
# define _DARWIN_USE_64_BIT_INODE 1 | |
#endif]) | |
fi |
fi |
])# AC_SYS_LARGEFILE |
])# AC_SYS_LARGEFILE |
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])# m4_version_prereq 2.70 |
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])# m4_version_prereq 2.69 | # Enable large files on systems where this is implemented by Gnulib, not by the |
| # system headers. |
| # Set the variables WINDOWS_64_BIT_OFF_T, WINDOWS_64_BIT_ST_SIZE if Gnulib |
| # overrides ensure that off_t or 'struct size.st_size' are 64-bit, respectively. |
| AC_DEFUN([gl_LARGEFILE], |
| [ |
| AC_REQUIRE([AC_CANONICAL_HOST]) |
| case "$host_os" in |
| mingw*) |
| dnl Native Windows. |
| dnl mingw64 defines off_t to a 64-bit type already, if |
| dnl _FILE_OFFSET_BITS=64, which is ensured by AC_SYS_LARGEFILE. |
| AC_CACHE_CHECK([for 64-bit off_t], [gl_cv_type_off_t_64], |
| [AC_COMPILE_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[#include <sys/types.h> |
| int verify_off_t_size[sizeof (off_t) >= 8 ? 1 : -1]; |
| ]], |
| [[]])], |
| [gl_cv_type_off_t_64=yes], [gl_cv_type_off_t_64=no]) |
| ]) |
| if test $gl_cv_type_off_t_64 = no; then |
| WINDOWS_64_BIT_OFF_T=1 |
| else |
| WINDOWS_64_BIT_OFF_T=0 |
| fi |
| dnl Some mingw versions define, if _FILE_OFFSET_BITS=64, 'struct stat' |
| dnl to 'struct _stat32i64' or 'struct _stat64' (depending on |
| dnl _USE_32BIT_TIME_T), which has a 32-bit st_size member. |
| AC_CACHE_CHECK([for 64-bit st_size], [gl_cv_member_st_size_64], |
| [AC_COMPILE_IFELSE( |
| [AC_LANG_PROGRAM( |
| [[#include <sys/types.h> |
| struct stat buf; |
| int verify_st_size_size[sizeof (buf.st_size) >= 8 ? 1 : -1]; |
| ]], |
| [[]])], |
| [gl_cv_member_st_size_64=yes], [gl_cv_member_st_size_64=no]) |
| ]) |
| if test $gl_cv_member_st_size_64 = no; then |
| WINDOWS_64_BIT_ST_SIZE=1 |
| else |
| WINDOWS_64_BIT_ST_SIZE=0 |
| fi |
| ;; |
| *) |
| dnl Nothing to do on gnulib's side. |
| dnl A 64-bit off_t is |
| dnl - already the default on Mac OS X, FreeBSD, NetBSD, OpenBSD, IRIX, |
| dnl OSF/1, Cygwin, |
| dnl - enabled by _FILE_OFFSET_BITS=64 (ensured by AC_SYS_LARGEFILE) on |
| dnl glibc, HP-UX, Solaris, |
| dnl - enabled by _LARGE_FILES=1 (ensured by AC_SYS_LARGEFILE) on AIX, |
| dnl - impossible to achieve on Minix 3.1.8. |
| WINDOWS_64_BIT_OFF_T=0 |
| WINDOWS_64_BIT_ST_SIZE=0 |
| ;; |
| esac |
| ]) |