1# fsync.m4 serial 2 2dnl Copyright (C) 2008-2020 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_FUNC_FSYNC], 8[ 9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) 10 AC_CHECK_FUNCS_ONCE([fsync]) 11 if test $ac_cv_func_fsync = no; then 12 HAVE_FSYNC=0 13 fi 14]) 15 16# Prerequisites of lib/fsync.c. 17AC_DEFUN([gl_PREREQ_FSYNC], [:]) 18