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-rw-r--r--m4/read.m428
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+# read.m4 serial 5
+dnl Copyright (C) 2011-2022 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])
+ m4_ifdef([gl_MSVC_INVAL], [
+ AC_REQUIRE([gl_MSVC_INVAL])
+ if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+ REPLACE_READ=1
+ fi
+ ])
+ 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
+ ])
+])
+
+# Prerequisites of lib/read.c.
+AC_DEFUN([gl_PREREQ_READ], [:])