| # read.m4 serial 2 |
| dnl Copyright (C) 2011 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_READ], |
| [ |
| AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) |
| dnl This ifdef is just an optimization, to avoid performing a configure |
| dnl check whose result is not used. It does not make the test of |
| dnl GNULIB_UNISTD_H_NONBLOCKING or GNULIB_NONBLOCKING redundant. |
| m4_ifdef([gl_NONBLOCKING_IO], [ |
| gl_NONBLOCKING_IO |
| if test $gl_cv_have_nonblocking != yes; then |
| REPLACE_READ=1 |
| fi |
| ]) |
| ]) |
