--- /dev/null
+# fseeko.m4 serial 9
+dnl Copyright (C) 2007-2010 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])
+
+ if test $gl_cv_func_fseeko = no; then
+ HAVE_FSEEKO=0
+ gl_REPLACE_FSEEKO
+ else
+ if test $gl_cv_var_stdin_large_offset = no; then
+ gl_REPLACE_FSEEKO
+ 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])
+ ])
+])
+
+AC_DEFUN([gl_REPLACE_FSEEKO],
+[
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+ AC_REQUIRE([gl_HAVE_FSEEKO])
+ if test $gl_cv_func_fseeko = yes; then
+ REPLACE_FSEEKO=1
+ fi
+ AC_LIBOBJ([fseeko])
+ dnl If we are also using the fseek module, then fseek needs replacing, too.
+ m4_ifdef([gl_REPLACE_FSEEK], [gl_REPLACE_FSEEK])
+])