X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fpipe.m4;h=fe7876ff0e69773a4b8e7539c833a9aecfc0d242;hb=4097b52187106b6a2940d28968cfecd4e53f9b4e;hp=0e5af624ddacb4296b8b8b4d7a58da55ac7ee2cc;hpb=08f44b5176b17c2f4d70e614b8b71a697165f0be;p=gnulib.git

diff --git a/m4/pipe.m4 b/m4/pipe.m4
index 0e5af624d..fe7876ff0 100644
--- a/m4/pipe.m4
+++ b/m4/pipe.m4
@@ -1,18 +1,12 @@
-# pipe.m4 serial 1
-dnl Copyright (C) 2004 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# pipe.m4 serial 4
+dnl Copyright (C) 2004, 2008, 2009 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_PIPE],
 [
-  dnl Prerequisites of lib/pipe.h.
-  AC_CHECK_HEADERS_ONCE(unistd.h)
   dnl Prerequisites of lib/pipe.c.
   AC_REQUIRE([AC_C_INLINE])
   AC_REQUIRE([AC_TYPE_MODE_T])
-  AC_REQUIRE([AC_FUNC_FORK])
-  AC_CHECK_FUNCS(posix_spawn)
 ])