m4/pipe.m4

   1 # pipe.m4 serial 2
   2 dnl Copyright (C) 2010-2014 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_PIPE],
   8 [
   9   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
  10
  11   AC_CHECK_FUNCS_ONCE([pipe])
  12   if test $ac_cv_func_pipe != yes; then
  13     HAVE_PIPE=0
  14   fi
  15 ])