# Enable large files on systems where this is not the default.
-# Copyright 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright 1992-1996, 1998-2018 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
-# The following implementation works around a problem in autoconf <= 2.68;
-# AC_SYS_LARGEFILE does not configure for large inodes on Mac OS X 10.5.
-m4_version_prereq([2.69], [] ,[
+# 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,
+# or configures them incorrectly in some cases.
+m4_version_prereq([2.70], [] ,[
# _AC_SYS_LARGEFILE_TEST_INCLUDES
# -------------------------------
# _AC_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE,
-# CACHE-VAR,
-# DESCRIPTION,
-# PROLOGUE, [FUNCTION-BODY])
+# CACHE-VAR,
+# DESCRIPTION,
+# PROLOGUE, [FUNCTION-BODY])
# --------------------------------------------------------
m4_define([_AC_SYS_LARGEFILE_MACRO_VALUE],
[AC_CACHE_CHECK([for $1 value needed for large files], [$3],
[_AC_SYS_LARGEFILE_TEST_INCLUDES])
fi
- AH_VERBATIM([_DARWIN_USE_64_BIT_INODE],
-[/* Enable large inode numbers on Mac OS X. */
-#ifndef _DARWIN_USE_64_BIT_INODE
-# define _DARWIN_USE_64_BIT_INODE 1
-#endif])
+ AC_DEFINE([_DARWIN_USE_64_BIT_INODE], [1],
+ [Enable large inode numbers on Mac OS X 10.5.])
fi
])# AC_SYS_LARGEFILE
-
-])# m4_version_prereq 2.69
+])# m4_version_prereq 2.70
# Enable large files on systems where this is implemented by Gnulib, not by the
# system headers.
else
WINDOWS_64_BIT_OFF_T=0
fi
- dnl But all native Windows platforms (including mingw64) have a 32-bit
- dnl st_size member in 'struct stat'.
- WINDOWS_64_BIT_ST_SIZE=1
+ 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 MacOS X, FreeBSD, NetBSD, OpenBSD, IRIX,
+ 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,