-# fseeko.m4 serial 14
-dnl Copyright (C) 2007-2011 Free Software Foundation, Inc.
+# fseeko.m4 serial 16
+dnl Copyright (C) 2007-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_FSEEKO],
[
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
- AC_REQUIRE([gl_HAVE_FSEEKO])
AC_REQUIRE([gl_STDIN_LARGE_OFFSET])
+ AC_REQUIRE([gl_SYS_TYPES_H])
+ AC_REQUIRE([AC_PROG_CC])
+
+ dnl Persuade glibc <stdio.h> to declare fseeko().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko],
+ [
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
+]], [fseeko (stdin, 0, 0);])],
+ [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no])
+ ])
AC_CHECK_DECLS_ONCE([fseeko])
if test $ac_cv_have_decl_fseeko = no; then
if test $gl_cv_func_fseeko = no; then
HAVE_FSEEKO=0
else
+ if test $WINDOWS_64_BIT_OFF_T = 1; then
+ REPLACE_FSEEKO=1
+ fi
if test $gl_cv_var_stdin_large_offset = no; then
REPLACE_FSEEKO=1
fi
fi
])
-dnl Tests whether fseeko is available.
-dnl Result is gl_cv_func_fseeko.
-AC_DEFUN([gl_HAVE_FSEEKO],
-[
- AC_REQUIRE([AC_PROG_CC])
-
- dnl Persuade glibc <stdio.h> to declare fseeko().
- AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
- AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko],
- [
- AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <stdio.h>
-]], [fseeko (stdin, 0, 0);])],
- [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no])
- ])
-])
-
dnl Code shared by fseeko and ftello. Determine if large files are supported,
dnl but stdin does not start as a large file by default.
AC_DEFUN([gl_STDIN_LARGE_OFFSET],
[gl_cv_var_stdin_large_offset=yes],
[gl_cv_var_stdin_large_offset=no])])
])
+
+# Prerequisites of lib/fseeko.c.
+AC_DEFUN([gl_PREREQ_FSEEKO],
+[
+ dnl Native Windows has the function _fseeki64. mingw hides it, but mingw64
+ dnl makes it usable again.
+ AC_CHECK_FUNCS([_fseeki64])
+])