m4/write.m4

   1 # write.m4 serial 5
   2 dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
   3 dnl This file is free software; the Free Software Foundation
   4 dnl gives unlimited permission to copy and/or distribute it,
   5 dnl with or without modifications, as long as this notice is preserved.
   6
   7 AC_DEFUN([gl_FUNC_WRITE],
   8 [
   9   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  10   AC_REQUIRE([gl_MSVC_INVAL])
  11   if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
  12     REPLACE_WRITE=1
  13   fi
  14   dnl This ifdef is just an optimization, to avoid performing a configure
  15   dnl check whose result is not used. It does not make the test of
  16   dnl GNULIB_UNISTD_H_SIGPIPE or GNULIB_SIGPIPE redundant.
  17   m4_ifdef([gl_SIGNAL_SIGPIPE], [
  18     gl_SIGNAL_SIGPIPE
  19     if test $gl_cv_header_signal_h_SIGPIPE != yes; then
  20       REPLACE_WRITE=1
  21     fi
  22   ])
  23   m4_ifdef([gl_NONBLOCKING_IO], [
  24     gl_NONBLOCKING_IO
  25     if test $gl_cv_have_nonblocking != yes; then
  26       REPLACE_WRITE=1
  27     fi
  28   ])
  29 ])
  30
  31 # Prerequisites of lib/write.c.
  32 AC_DEFUN([gl_PREREQ_WRITE], [:])