-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
+ AC_CHECK_DECLS_ONCE([fseeko])
+ if test $ac_cv_have_decl_fseeko = no; then
+ HAVE_DECL_FSEEKO=0
+ fi
+
+ 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
+ m4_ifdef([gl_FUNC_FFLUSH_STDIN], [
+ gl_FUNC_FFLUSH_STDIN
+ if test $gl_cv_func_fflush_stdin != yes; then
+ REPLACE_FSEEKO=1
+ fi
+ ])