# Enable large files on systems where this is not the default.
-# Copyright 1992-1996, 1998-2016 Free Software Foundation, Inc.
+# Copyright 1992-1996, 1998-2019 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 macro works around a problem in Autoconf's AC_FUNC_FSEEKO:
+# It does not set _LARGEFILE_SOURCE=1 on HP-UX/ia64 32-bit, although this
+# setting of _LARGEFILE_SOURCE is needed so that <stdio.h> declares fseeko
+# and ftello in C++ mode as well.
+AC_DEFUN([gl_SET_LARGEFILE_SOURCE],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_FUNC_FSEEKO
+ case "$host_os" in
+ hpux*)
+ AC_DEFINE([_LARGEFILE_SOURCE], [1],
+ [Define to 1 to make fseeko visible on some hosts (e.g. glibc 2.2).])
+ ;;
+ esac
+])
+
# 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.
# By default, many hosts won't let programs access large files;
# one must use special compiler options to get large-file access to work.
# For more details about this brain damage please see:
-# http://www.unix-systems.org/version2/whatsnew/lfs20mar.html
+# http://www.unix.org/version2/whatsnew/lfs20mar.html
AC_DEFUN([AC_SYS_LARGEFILE],
[AC_ARG_ENABLE(largefile,
[ --disable-largefile omit support for large files])
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.